:root{--bg:#ffffff;--surface:#ffffff;--border:#d6d9de;--text:#131417;--muted:#636a75;--soft:#eceef1;--header-bg:#ffffff;--radius:16px}html[data-theme=dark]{--bg:#111317;--surface:#181c21;--border:#2d333c;--text:#eceff4;--muted:#a1aab8;--soft:#20262e;--header-bg:rgba(17,19,23,0.92)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font-sans),"Helvetica Neue",sans-serif}html[data-theme=dark],html[data-theme=dark] body{background:#ffffff;color:#131417}html{scroll-behavior:smooth}a{color:inherit;text-decoration:none}.container{width:min(1160px,92vw);margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:30;background:var(--header-bg);border-bottom:none}.nav-wrap{min-height:58px;padding:6px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}.brand,.nav-wrap{align-items:center}.brand{font-family:var(--font-sans),"Avenir Next",sans-serif;font-weight:800;font-size:1.52rem;letter-spacing:-.02em;color:#17191d;display:inline-flex;gap:8px}.brand-logo{width:44px;height:44px;object-fit:contain}.nav-signin{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:999px;background:#17191d;color:#fff;font-size:.84rem;font-weight:700}.nav-signin:hover{background:#30343a}.landing-header-signin{min-height:38px;padding:0 16px}.nav-profile-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover}.auth-page{width:min(460px,100%);margin:78px auto 100px}.auth-card{border:1px solid #e3e5e8;border-radius:18px;padding:34px;background:#fff;box-shadow:0 14px 45px rgba(24,28,36,.06)}.auth-kicker,.pricing-head>span{color:#5c6675;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.auth-card h1{margin:10px 0 8px;font-size:clamp(1.8rem,5vw,2.4rem);letter-spacing:-.05em}.auth-card>p{color:#68717e;line-height:1.6}.auth-google{width:100%;min-height:46px;border:1px solid #dce0e5;border-radius:10px;background:#fff;color:#22262c;font:inherit;font-weight:700;cursor:pointer}.auth-google span{display:inline-block;margin-right:9px;color:#4285f4;font-size:1.1rem}.auth-divider{position:relative;margin:22px 0;text-align:center;border-top:1px solid #e5e7eb}.auth-divider span{display:inline-block;transform:translateY(-50%);padding:0 10px;background:#fff;color:#8a919b;font-size:.78rem}.auth-form{display:grid;grid-gap:15px;gap:15px}.auth-form label{display:grid;grid-gap:7px;gap:7px;color:#353a42;font-size:.86rem;font-weight:700}.auth-form input{width:100%;min-height:44px;padding:0 12px;border:1px solid #d8dde3;border-radius:9px;font:inherit;outline:none}.auth-form input:focus{border-color:#17191d;box-shadow:0 0 0 3px rgba(23,25,29,.08)}.auth-submit{width:100%;justify-content:center;margin-top:4px}.auth-message{padding:10px 12px;border-radius:8px;background:#f4f5f6;color:#444b55!important;font-size:.86rem}.auth-switch{margin:20px 0 0;text-align:center;font-size:.86rem}.auth-switch button{padding:0;border:0;background:none;color:#181c24;font:inherit;font-weight:800;cursor:pointer;text-decoration:underline}.pricing-page{width:min(940px,100%);margin:66px auto 104px}.pricing-head{max-width:610px;margin:0 auto 38px;text-align:center}.pricing-head h1{margin:10px 0 12px;font-size:clamp(2.2rem,5.4vw,4rem);letter-spacing:-.065em;line-height:.98}.pricing-head p{margin:0;color:#69717d;line-height:1.7}.pricing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:18px;gap:18px;align-items:stretch}.pricing-card{display:flex;flex-direction:column;min-height:430px;padding:29px;border:1px solid #e0e3e7;border-radius:18px;background:#fff}.pricing-card-pro{border-color:#1c2027;box-shadow:0 14px 35px rgba(24,27,33,.11)}.pricing-topline{display:flex;justify-content:space-between;align-items:center}.pricing-label{font-size:.86rem;font-weight:800}.pricing-badge{padding:5px 9px;border-radius:999px;background:#17191d;color:#fff;font-size:.72rem;font-weight:800}.pricing-card h2{margin:18px 0 3px;font-size:3.15rem;letter-spacing:-.07em}.pricing-description,.pricing-period{margin:0;color:#67707d}.pricing-description{margin-top:24px;line-height:1.6}.pricing-card ul{display:grid;grid-gap:12px;gap:12px;margin:25px 0;padding:0;list-style:none;color:#323841;font-size:.91rem}.pricing-card li{display:flex;gap:10px;align-items:flex-start}.pricing-card li:before{content:"";width:7px;height:7px;margin-top:.42em;border-radius:50%;background:#1e232b;flex:0 0 auto}.pricing-button{width:100%;justify-content:center;margin-top:auto}.pricing-note{min-height:24px;margin:18px 0 0;color:#67707d;text-align:center;font-size:.86rem}@media (max-width:640px){.auth-page{margin-top:40px}.auth-card{padding:24px}.pricing-page{margin-top:40px}.pricing-grid{grid-template-columns:1fr}.pricing-card{min-height:0}}.brand-chip,.brand-main{line-height:1}.brand-chip{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;border:1px solid #1a1c21;border-radius:999px;padding:4px 8px}.nav-links{display:flex;gap:2px;flex-wrap:wrap}.nav-link{display:inline-flex;align-items:center;gap:7px;padding:6px 7px;border:0;color:#30353f;font-size:.93rem;font-weight:600;text-decoration:none;transition:color .14s ease}.nav-link:hover{color:#181c24;text-decoration:underline;text-underline-offset:4px}.nav-link.active{color:#181c24}.nav-icon{display:inline-flex;color:#414753}.nav-right{display:flex;align-items:center;gap:10px;position:relative}.nav-avatar{width:30px;height:30px;border-radius:999px;object-fit:cover;border:1px solid #ccd3de}.nav-avatar-fallback{display:inline-flex;align-items:center;justify-content:center;background:var(--soft);color:var(--text)}.profile-menu{position:relative}.profile-menu-trigger{height:38px;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:999px;display:inline-flex;align-items:center;gap:6px;padding:3px 8px 3px 3px;cursor:pointer}.mock-profile-button{width:42px;height:42px;padding:0;justify-content:center;border-radius:50%}.logout-menu-item{color:#c62828}.logout-menu-item:hover{background:#fff1f1}.profile-menu-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:172px;border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:6px;box-shadow:0 12px 30px rgba(10,12,16,.14);display:grid;grid-gap:4px;gap:4px}.profile-menu-item{border:none;background:transparent;color:var(--text);text-align:left;font:inherit;font-size:.92rem;padding:9px 10px;border-radius:9px;cursor:pointer;display:inline-flex;align-items:center;gap:8px}.profile-menu-item:hover{background:var(--soft)}.pill{font-size:.84rem;border:1px solid var(--border);border-radius:999px;padding:7px 12px;background:#f7f8fa}.page{width:100%;max-width:1160px;margin:0 auto;padding:52px 0 80px}.landing-page{background:#ffffff}.landing-layout{width:100%;margin:0 auto;padding:96px 0 110px;display:grid;grid-gap:58px;gap:58px}.landing-copy{width:100%;text-align:center}.landing-copy h1{max-width:760px;margin:0 auto;font-size:clamp(2.5rem,6vw,5.4rem);line-height:.96;letter-spacing:-.075em}.trust-badge{display:inline-flex;align-items:center;gap:7px;margin-bottom:18px;padding:7px 11px;border:1px solid #dfe2e5;border-radius:999px;color:#5b6169;background:#fff;font-size:.8rem;font-weight:600;letter-spacing:.01em}.trust-badge span{color:#16181b;font-weight:800}.trust-badge .trust-badge-count{display:inline-block;animation:trust-count-in .46s cubic-bezier(.22,1,.36,1) both}@keyframes trust-count-in{0%{opacity:0;transform:translateY(9px) scale(.94)}to{opacity:1;transform:translateY(0) scale(1)}}@media (prefers-reduced-motion:reduce){.trust-badge .trust-badge-count{animation:none}}.landing-copy p:not(.eyebrow){max-width:580px;margin:26px auto 30px;color:#60656d;font-size:1.08rem;line-height:1.6}.hero-test-preview{width:min(1160px,100%);margin:0 auto;overflow:hidden;border:1px solid #dfe3e8;border-radius:22px;background:#ffffff;box-shadow:0 22px 60px rgba(25,32,43,.12)}.hero-test-preview img{display:block;width:100%;height:auto}.landing-purpose{width:min(760px,calc(100% - 40px));margin:0 auto 86px;padding:34px 0 0;border-top:1px solid #e3e5e8;text-align:center}.landing-purpose h2{max-width:620px;margin:13px auto 14px;font-size:clamp(1.7rem,3vw,2.6rem);letter-spacing:-.055em}.landing-purpose p{max-width:650px;margin:0 auto;color:#60656d;line-height:1.65}.landing-purpose-points{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:22px}.landing-purpose-points span{padding:8px 11px;border:1px solid #dfe2e5;border-radius:999px;color:#3e444c;background:#fff;font-size:.78rem;font-weight:700}.main-app-button{min-width:122px;justify-content:center}.hero-actions{justify-content:center;align-items:center}.hero-signin{min-width:104px}.hero-cta-arrow{transition:transform .18s ease}.hero-cta:focus-visible .hero-cta-arrow,.hero-cta:hover .hero-cta-arrow{transform:translateX(4px)}.hero-demo-placeholder{width:100%;aspect-ratio:4/3;margin:0;border:1px solid #d7d7d7;background:#f7f7f7}@media (max-width:720px){.landing-layout{padding:70px 0 76px;gap:38px}.landing-copy{text-align:center}.landing-copy h1{margin:0 auto}.landing-copy p:not(.eyebrow){margin:22px auto 28px}.hero-test-preview{border-radius:14px}}.page-head{margin-bottom:30px}.page-head h1{font-size:clamp(1.98rem,3.6vw,2.85rem);line-height:1.12;max-width:24ch;text-align:left}.dashboard-page{padding-top:46px}.dashboard-page-header{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}.dashboard-page-header h1{max-width:none;margin:0;font-size:clamp(2.2rem,4vw,3.4rem);letter-spacing:-.05em}.dashboard-page-header p{margin-top:10px}.dashboard-summary-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:14px;gap:14px;margin-bottom:22px}.dashboard-panel,.dashboard-summary-card{border:1px solid #e0e3e7;border-radius:12px;background:#fff;box-shadow:none}.dashboard-summary-card{display:grid;grid-gap:8px;gap:8px;padding:18px}.dashboard-summary-icon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;margin-bottom:8px;border:1px solid #e0e3e7;border-radius:9px;color:#252a31}.dashboard-summary-card>span{color:#69717b;font-size:.82rem}.dashboard-summary-card strong{color:#171a1f;font-size:1.7rem;line-height:1;letter-spacing:-.04em}.dashboard-summary-card small{color:#8a9199;font-size:.78rem}.dashboard-main-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.75fr);grid-gap:22px;gap:22px;align-items:start}.dashboard-panel{padding:22px}.dashboard-panel-header{display:flex;align-items:start;justify-content:space-between;gap:16px;margin-bottom:20px}.dashboard-panel-header h2{font-size:1.28rem;letter-spacing:-.03em}.dashboard-panel-header p{margin-top:5px;font-size:.88rem}.dashboard-period{color:#737b84;font-size:.78rem;white-space:nowrap}.dashboard-empty-chart{position:relative;min-height:292px;overflow:hidden;border-top:1px solid #eef0f2;border-bottom:1px solid #eef0f2}.dashboard-empty-chart svg{width:100%;height:292px}.dashboard-empty-chart line{stroke:#e7e9ec;stroke-width:1}.dashboard-chart-message{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;grid-gap:7px;gap:7px;text-align:center;color:#616a74}.dashboard-chart-message svg{width:22px;height:22px;color:#303740}.dashboard-chart-message strong{color:#242930;font-size:.95rem}.dashboard-chart-message span{font-size:.82rem}.dashboard-chart-message .btn{margin-top:8px}.dashboard-action-list{display:grid;border-top:1px solid #eef0f2}.dashboard-action{display:grid;grid-template-columns:30px 1fr auto;align-items:center;grid-gap:12px;gap:12px;padding:16px 0;border-bottom:1px solid #eef0f2}.dashboard-action-number{color:#9299a1;font-size:.75rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.dashboard-action-copy{display:grid;grid-gap:4px;gap:4px}.dashboard-action-copy strong{color:#252a31;font-size:.88rem;font-weight:700}.dashboard-action-copy small{color:#7d858e;font-size:.76rem;line-height:1.35}.dashboard-action-arrow{color:#303740;font-size:1.1rem}.dashboard-recent-panel{margin-top:22px}.text-link{color:#303740;font-size:.82rem;font-weight:700;white-space:nowrap}.dashboard-empty-table{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:96px;padding:18px;border:1px dashed #dfe3e7;color:#737b84;font-size:.88rem}@media (max-width:960px){.dashboard-summary-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dashboard-main-grid{grid-template-columns:1fr}}.nta-submit-actions{display:inline-flex;align-items:center;gap:8px;margin-left:auto}.nta-quit-btn{border-color:#c9372c;background:#c9372c;color:#ffffff}.nta-quit-btn:hover{border-color:#a92c23;background:#a92c23}.quit-modal-backdrop{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px;background:rgba(16,20,27,.46)}.quit-modal{width:min(420px,100%);padding:28px;border:1px solid #e0e4ea;border-radius:18px;background:#ffffff;box-shadow:0 24px 70px rgba(16,20,27,.2)}.quit-modal-icon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;margin-bottom:14px;border-radius:50%;background:#fff0ee;color:#c9372c;font-weight:800}.quit-modal h2{margin-bottom:8px;color:#171c24;font-size:1.3rem}.quit-modal p{margin-bottom:22px;color:#687383;line-height:1.55}.quit-modal-actions{display:flex;justify-content:flex-end;gap:8px}.exam-mode-nta .nta-submit-actions .nta-quit-btn{border-radius:0;background:#c9372c;border-color:#c9372c}@media (max-width:720px){.nta-submit-actions{width:100%;margin-left:0}.nta-submit-actions .btn{flex:1 1}.quit-modal{padding:22px}.quit-modal-actions{display:grid;grid-template-columns:1fr}}.resources-page .page-head{display:grid;grid-gap:8px;gap:8px;margin-bottom:20px}.resources-page .page-head h1{max-width:760px;white-space:normal;text-wrap:balance}.resources-page .page-head p:last-child{margin:0}.resources-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0 16px;border-bottom:1px solid #e3e7ed}.resources-toolbar .search-input-wrap{flex:1 1 360px;max-width:520px;border:1px solid #dce2e9;border-radius:12px;background:#ffffff}.resources-toolbar .tag-filter{justify-content:flex-end}.resource-section{margin-top:30px}.resource-section-head{align-items:baseline;margin-bottom:12px}.resource-section-head h2{margin:0;font-size:1.15rem}.resource-count{color:#7b8592;font-size:.8rem;font-weight:700}.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:14px;gap:14px}.resources-page .resource-card{min-height:190px;border:1px solid #e1e6ed;border-radius:16px;background:#ffffff;box-shadow:0 8px 22px rgba(30,42,58,.04);transition:border-color .14s ease,box-shadow .14s ease,transform .14s ease}.resources-page .resource-card:hover{border-color:#c8d2df;box-shadow:0 12px 26px rgba(30,42,58,.08);transform:translateY(-2px)}.resources-page .resource-card h3{margin:2px 0 0;font-size:1.02rem;line-height:1.35}.resources-page .resource-card-desc{line-height:1.55}.resources-page .resource-download{border-radius:9px;background:#f6f8fa}@media (max-width:960px){.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:720px){.resources-toolbar{align-items:stretch;flex-direction:column}.resources-toolbar .search-input-wrap{max-width:none}.resources-toolbar .tag-filter{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;padding-bottom:2px}.resources-toolbar .subject-tag{flex:0 0 auto}.resource-grid{grid-template-columns:1fr}}.result-screen{gap:22px;padding:clamp(20px,4vw,42px);background:#ffffff}.result-screen-header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding-bottom:22px;border-bottom:1px solid #e4e8ee}.result-screen-header .exam-back-link{margin-bottom:18px}.result-screen-header h1{max-width:760px;margin-bottom:8px;font-size:clamp(1.65rem,3.2vw,2.55rem)}.result-eyebrow{margin-bottom:8px;color:#397db5;font-size:.75rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.result-save-status{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;padding:8px 12px;border:1px solid #dce3eb;border-radius:999px;color:#566171;font-size:.82rem;font-weight:700}.result-status-dot{width:8px;height:8px;border-radius:50%;background:#2ca760}.result-overview{display:grid;grid-template-columns:minmax(240px,.9fr) minmax(0,1.5fr);grid-gap:14px;gap:14px}.result-score-panel{display:grid;align-content:center;grid-gap:10px;gap:10px;min-height:190px;padding:24px;border:1px solid #dbe3ec;border-radius:16px;background:#f7faff}.result-panel-label{color:#687485;font-size:.86rem;font-weight:700}.result-score-line{display:flex;align-items:baseline;gap:8px}.result-score-line strong{color:#161b23;font-size:clamp(2.6rem,5vw,4.2rem);line-height:.95}.result-score-line span{color:#7a8593;font-size:1.1rem;font-weight:700}.result-progress{height:8px;overflow:hidden;border-radius:999px;background:#e0e8f1}.result-progress span{display:block;height:100%;border-radius:inherit;background:#397db5}.result-score-panel p{margin:0;font-size:.82rem}.result-stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:14px;gap:14px}.result-stat-card{display:grid;align-content:center;grid-gap:8px;gap:8px;min-height:88px;padding:18px;border:1px solid #e1e6ed;border-radius:16px;background:#ffffff}.result-stat-card span{display:inline-flex;align-items:center;gap:5px;color:#717c8b;font-size:.82rem;font-weight:700}.result-stat-card strong{color:#171c24;font-size:1.55rem;line-height:1}.result-stat-card strong small{color:#8a94a2;font-size:.9rem}.result-rank-stat span,.result-rank-stat strong{color:#397db5}.result-note{padding:12px 14px;border-left:3px solid #f2ad42;background:#fffaf1;color:#6a5a3f;font-size:.86rem}.result-breakdown-card{min-height:190px;border:1px solid #e1e6ed;box-shadow:none}.result-breakdown-card h4{margin-bottom:14px}@media (max-width:720px){.result-screen-header{display:grid}.result-save-status{width:-moz-fit-content;width:fit-content}.result-overview{grid-template-columns:1fr}}@media (max-width:520px){.result-screen{padding:18px}.result-stat-grid{gap:8px}.result-stat-card{padding:14px}}.leaderboard-page{background:#0d172b}.leaderboard-page .page-head{max-width:1160px;margin-inline:auto}.leaderboard-page .leaderboard-climb-copy h2,.leaderboard-page .leaderboard-subhead h2,.leaderboard-page .leaderboard-table-heading h2,.leaderboard-page .page-head h1,.leaderboard-page .podium-wrap h2{color:#f4f7ff}.leaderboard-page .muted,.leaderboard-page .page-head p:last-child{color:#9eacc2}.leaderboard-page .leaderboard-kicker,.leaderboard-page .result-eyebrow{color:#8da6ff}.leaderboard-page .leaderboard-demo-note{max-width:1160px;margin:0 auto 22px;border-color:#33425d;background:#15233d;color:#9eacc2}.leaderboard-page .leaderboard-climb-card{max-width:1160px;margin-inline:auto;border-color:#33425d;background:#15233d}.leaderboard-page .leaderboard-climb-copy p,.leaderboard-page .leaderboard-climb-copy small,.leaderboard-page .leaderboard-climb-stats span{color:#9eacc2}.leaderboard-page .leaderboard-climb-stats strong{color:#f4f7ff}.leaderboard-page .leaderboard-badges,.leaderboard-page .leaderboard-missions,.leaderboard-page .leaderboard-subhead,.leaderboard-page .leaderboard-table-heading{max-width:1160px;margin-inline:auto}.leaderboard-page .leaderboard-mission-card{border-color:#33425d;background:#15233d}.leaderboard-page .leaderboard-mission-card b,.leaderboard-page .leaderboard-mission-card p{color:#9eacc2}.leaderboard-page .mission-icon{background:#263a61}.leaderboard-page .leaderboard-badges{margin-bottom:30px}.leaderboard-badge-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px}.leaderboard-badge-card{display:flex;align-items:center;gap:12px;min-height:78px;padding:14px;border:1px solid #33425d;border-radius:14px;background:#15233d}.leaderboard-badge-card>span{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:#263a61;color:#f5d477;font-size:1.25rem}.leaderboard-badge-card div{display:grid;grid-gap:4px;gap:4px}.leaderboard-badge-card strong{color:#f4f7ff;font-size:.86rem}.leaderboard-badge-card small{color:#91a0b7;font-size:.72rem}.leaderboard-badge-card.badge-locked{opacity:.62}.leaderboard-badge-card.badge-earned>span{background:#384a8c}.leaderboard-page .podium-wrap{max-width:1160px;margin-inline:auto;border-color:#33425d;background:#0f1b31;box-shadow:none}.leaderboard-page .podium{align-items:end}.leaderboard-page .podium-avatar{border-color:#52638b;box-shadow:0 0 0 4px #0f1b31,0 8px 18px rgba(0,0,0,.28)}.leaderboard-page .podium-bar{display:flex;align-items:flex-start;justify-content:center;width:100%;padding-top:18px;border-radius:18px 18px 8px 8px;font-size:2.6rem}.leaderboard-page .podium-col.first .podium-bar,.leaderboard-page .podium-col.second .podium-bar,.leaderboard-page .podium-col.third .podium-bar{color:#ffffff}.leaderboard-page .leaderboard-reset{color:#9eacc2}.leaderboard-page .leaderboard-table-heading{margin-top:34px}.leaderboard-page .leaderboard-table-wrap{max-width:1160px;margin-inline:auto;border-color:#33425d;background:#0f1b31;box-shadow:none}.leaderboard-page .leaderboard-mobile-item{border-color:#33425d;background:#15233d;color:#f4f7ff}@media (max-width:960px){.leaderboard-badge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:520px){.leaderboard-page{padding-inline:14px}.leaderboard-badge-grid{grid-template-columns:1fr}.leaderboard-page .podium{min-height:260px}}.exam-mode-nta .nta-chip.not-answered,.exam-mode-nta .nta-qbtn.not-answered,.exam-mode-nta .nta-qbtn.not_answered{background:#FC2F00;border-color:#FC2F00}.exam-mode-nta .nta-btn-save,.exam-mode-nta .nta-chip.answered,.exam-mode-nta .nta-qbtn.answered,.exam-mode-nta .nta-submit-btn{background:#00B600;border-color:#00B600}.leaderboard-page,.leaderboard-page .leaderboard-climb-copy h2,.leaderboard-page .leaderboard-subhead h2,.leaderboard-page .leaderboard-table-heading h2,.leaderboard-page .page-head h1,.leaderboard-page .podium-wrap h2{color:#171c24!important}.leaderboard-page .leaderboard-climb-copy p,.leaderboard-page .leaderboard-climb-copy small,.leaderboard-page .leaderboard-reset,.leaderboard-page .muted,.leaderboard-page .page-head p:last-child{color:#6d7785!important}.leaderboard-page .leaderboard-badge-card,.leaderboard-page .leaderboard-climb-card,.leaderboard-page .leaderboard-demo-note,.leaderboard-page .leaderboard-mission-card{border-color:#e1e6ed}.leaderboard-page .leaderboard-climb-card{background:#f5f8fc!important}.leaderboard-page .leaderboard-climb-stats div{border-color:#e1e6ed}.leaderboard-page .leaderboard-climb-stats span{color:#737d8b}.leaderboard-page .leaderboard-climb-stats strong{color:#171c24}.leaderboard-page .leaderboard-badge-card small,.leaderboard-page .leaderboard-mission-card b,.leaderboard-page .leaderboard-mission-card p{color:#6d7785}.leaderboard-page .leaderboard-badge-card strong{color:#252c36}.leaderboard-page .leaderboard-badge-card>span,.leaderboard-page .mission-icon{background:#f0f3f7}.leaderboard-page .page-head{margin-bottom:30px}.leaderboard-page .leaderboard-demo-note{max-width:none;margin:0 0 18px;border-color:#e0e3e7;border-radius:10px;background:#f7f8fa!important;color:#737b84}.leaderboard-page .leaderboard-climb-card{max-width:none;margin:0 0 22px;padding:22px;border-color:#e0e3e7;border-radius:12px}.leaderboard-page .leaderboard-badge-card,.leaderboard-page .leaderboard-climb-stats div,.leaderboard-page .leaderboard-mission-card{border-color:#e0e3e7;border-radius:12px;background:#ffffff!important}.leaderboard-page .leaderboard-climb-stats div{padding:14px}.leaderboard-page .leaderboard-badge-card small,.leaderboard-page .leaderboard-climb-stats span,.leaderboard-page .leaderboard-mission-card b,.leaderboard-page .leaderboard-mission-card p{color:#737b84}.leaderboard-page .leaderboard-badge-card strong,.leaderboard-page .leaderboard-climb-stats strong{color:#171a1f}.leaderboard-page .leaderboard-xp-track{background:#e7ebef}.leaderboard-page .leaderboard-xp-track span{background:#4b7cad}.leaderboard-page .leaderboard-badges,.leaderboard-page .leaderboard-missions,.leaderboard-page .leaderboard-table-heading{max-width:none}.leaderboard-page .leaderboard-table-wrap,.leaderboard-page .podium-wrap{border-color:#e0e3e7}.leaderboard-page .podium-bar{font-size:2.35rem}.leaderboard-page .leaderboard-table th{background:#f7f8fa;color:#737b84}.leaderboard-page .leaderboard-table td{border-color:#e7e9ec;color:#252a31}.leaderboard-page .leaderboard-mobile-item{border-color:#e0e3e7;border-radius:12px;background:#ffffff;color:#252a31}@media (max-width:720px){.leaderboard-page{padding-top:34px;padding-bottom:60px}}.leaderboard-page .leaderboard-xp-track{background:#e2e8f0}.leaderboard-page .leaderboard-xp-track span{background:#397db5}.leaderboard-page .leaderboard-table-wrap,.leaderboard-page .podium-wrap{border-color:#e1e6ed}.leaderboard-page .podium-col{color:#171c24}.leaderboard-page .podium-col small{color:#6d7785}.leaderboard-page .podium-avatar{border-color:#d6dbe2}.leaderboard-page .podium-bar{color:#2f3440;border-color:#d8dde4;background:#eceff4}.leaderboard-page .podium-col.first .podium-bar{background:#f6c953;border-color:#edc167}.leaderboard-page .podium-col.second .podium-bar{background:#d0dbf7;border-color:#c4cee8}.leaderboard-page .podium-col.third .podium-bar{background:#f2c7ad;border-color:#e0b79f}.leaderboard-page .leaderboard-table td{border-color:#e5e9ef;color:#252c36}.leaderboard-page .leaderboard-table .leader-row:hover td{background:#f7f8fa}.leaderboard-page .rank-badge,.leaderboard-page .reward-pill,.leaderboard-page .streak-chip{border-color:#d8dfe8;background:#f7f9fb;color:#4c5868}@media (min-width:961px){.leaderboard-page>.leaderboard-missions{grid-column:2;grid-row:4/span 2;width:100%;margin:0;position:-webkit-sticky;position:sticky;top:78px}.leaderboard-page>.leaderboard-badges,.leaderboard-page>.leaderboard-table-heading,.leaderboard-page>.leaderboard-table-wrap,.leaderboard-page>.podium-wrap{grid-column:1;width:100%;margin-left:0;margin-right:0}.leaderboard-page .leaderboard-missions .leaderboard-subhead{max-width:none;margin:0 0 14px;align-items:flex-start;flex-direction:column}.leaderboard-page .leaderboard-mission-grid{grid-template-columns:1fr}}.tests-page-v2 .page-head{margin-bottom:22px}.tests-page-v2 .tests-lead{max-width:700px}.tests-page-v2 .tests-search{width:min(100%,560px);margin-bottom:16px}.tests-availability-strip{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.tests-availability-strip span{padding:9px 13px;border:1px solid #e3e7eb;border-radius:999px;background:#fff;color:#6b7580;font-size:.78rem}.tests-availability-strip strong{margin-right:4px;color:#171a1f;font-size:.9rem}.tests-primary-section,.tests-secondary-section{margin-top:18px;padding:22px;border:1px solid #e0e4e8;border-radius:14px;background:#fff}.tests-primary-section{background:#f7f8fa}.tests-section-intro{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}.tests-section-intro h2{margin:3px 0 0;color:#171a1f;font-size:1.24rem}.tests-section-intro p{max-width:420px;margin:0;font-size:.84rem;line-height:1.5;text-align:right}.tests-section-kicker{color:#397db5;font-size:.7rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}.tests-card-grid-primary{grid-template-columns:minmax(0,1fr)}.tests-secondary-section .tests-card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}@media (max-width:860px){.tests-secondary-section .tests-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:620px){.tests-primary-section,.tests-secondary-section{padding:16px}.tests-section-intro{display:grid;align-items:start}.tests-section-intro p{text-align:left}.tests-secondary-section .tests-card-grid{grid-template-columns:minmax(0,1fr)}}.exam-mode-nta .nta-chip.answered,.exam-mode-nta .nta-chip.not-answered,.exam-mode-nta .nta-qbtn.answered,.exam-mode-nta .nta-qbtn.not-answered,.exam-mode-nta .nta-qbtn.not_answered{-webkit-clip-path:polygon(0 0,100% 0,80% 100%,20% 100%);clip-path:polygon(0 0,100% 0,80% 100%,20% 100%)}@media (min-width:961px){.leaderboard-page{display:grid;grid-template-columns:minmax(0,1fr) 320px;grid-column-gap:24px;column-gap:24px;align-items:start}.leaderboard-page>.leaderboard-climb-card,.leaderboard-page>.leaderboard-demo-note,.leaderboard-page>.page-head{grid-column:1/-1;width:100%}.leaderboard-page>.leaderboard-missions{grid-column:2;grid-row:4/span 2;width:100%;margin:0;position:-webkit-sticky;position:sticky;top:78px}.leaderboard-page>.leaderboard-badges,.leaderboard-page>.leaderboard-table-heading,.leaderboard-page>.leaderboard-table-wrap,.leaderboard-page>.podium-wrap{grid-column:1;width:100%;margin-left:0;margin-right:0}.leaderboard-page>.leaderboard-badges{grid-row:4}.leaderboard-page>.podium-wrap{grid-row:5}.leaderboard-page>.leaderboard-table-heading{grid-row:6}.leaderboard-page>.leaderboard-table-wrap{grid-row:7}.leaderboard-page .leaderboard-mission-grid{grid-template-columns:1fr}.leaderboard-page .leaderboard-subhead{align-items:flex-start;flex-direction:column}}.leaderboard-page .page-head{display:grid;grid-gap:8px;gap:8px;margin-bottom:18px}.leaderboard-page .page-head h1{max-width:720px;white-space:normal;text-wrap:balance}.leaderboard-page .page-head p:last-child{margin:0}.leaderboard-demo-note{display:inline-flex;align-items:center;gap:8px;width:-moz-fit-content;width:fit-content;margin-bottom:18px;padding:9px 12px;border:1px solid #dce3eb;border-radius:999px;color:#687383;font-size:.8rem;font-weight:600}.leaderboard-demo-note .result-status-dot{flex:0 0 auto}.leaderboard-page .leaderboard-table-wrap,.leaderboard-page .podium-wrap{border:1px solid #e1e6ed;border-radius:18px;background:#ffffff;box-shadow:0 10px 28px rgba(30,42,58,.05)}.leaderboard-page .podium-wrap{padding:22px}.leaderboard-page .podium-wrap .section-head{margin-bottom:20px}.leaderboard-page .podium-wrap .section-head h2{margin:0;font-size:1.1rem}.leaderboard-page .podium-avatar{box-shadow:0 0 0 4px #ffffff,0 8px 18px rgba(30,42,58,.12)}.leaderboard-page .podium-col.first .podium-bar{background:#fff4d9;border-color:#e8cf9a;color:#7c5a12}.leaderboard-page .podium-col.second .podium-bar{background:#f1f4f8;border-color:#cfd6df;color:#4e5868}.leaderboard-page .podium-col.third .podium-bar{background:#f7eee8;border-color:#e7c8b8;color:#774733}.leaderboard-page .leaderboard-table-wrap{padding:8px}.leaderboard-page .leaderboard-table th{background:#f7f9fb;color:#737d8b;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase}.leaderboard-page .leaderboard-table td{padding-top:15px;padding-bottom:15px}.leaderboard-page .leader-row.rank-1 td,.leaderboard-page .leader-row.rank-2 td,.leaderboard-page .leader-row.rank-3 td{background:#fbfcfe}@media (max-width:720px){.leaderboard-demo-note{width:auto;border-radius:12px}.leaderboard-page .podium-wrap{padding:16px}}.leaderboard-climb-card{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(300px,.7fr);grid-gap:20px;gap:20px;margin-bottom:28px;padding:26px;border:1px solid #d9e2ec;border-radius:20px;background:#edf6ff}.leaderboard-kicker{display:block;margin-bottom:6px;color:#397db5;font-size:.72rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}.leaderboard-climb-copy h2,.leaderboard-subhead h2,.leaderboard-table-heading h2{margin:0;color:#17202d;font-size:1.35rem}.leaderboard-climb-copy p{margin:8px 0 18px;color:#627183}.leaderboard-xp-track{height:10px;overflow:hidden;max-width:540px;border-radius:999px;background:#d3e3f2}.leaderboard-xp-track span{display:block;height:100%;border-radius:inherit;background:#397db5}.leaderboard-climb-copy small{display:block;margin-top:8px;color:#6c7b8c;font-size:.78rem;font-weight:700}.leaderboard-climb-stats{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:8px;gap:8px;align-items:stretch}.leaderboard-climb-stats div{display:grid;align-content:center;grid-gap:8px;gap:8px;padding:14px;border:1px solid #d7e3ef;border-radius:14px;background:#ffffff}.leaderboard-climb-stats span{color:#728093;font-size:.74rem;font-weight:700}.leaderboard-climb-stats strong{color:#17202d;font-size:1.35rem}.leaderboard-subhead,.leaderboard-table-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}.leaderboard-subhead h2{font-size:1.15rem}.leaderboard-missions{margin-bottom:30px}.leaderboard-mission-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:12px;gap:12px}.leaderboard-mission-card{display:grid;grid-template-columns:auto 1fr auto;align-items:center;grid-gap:10px;gap:10px;min-height:84px;padding:14px;border:1px solid transparent;border-radius:15px}.leaderboard-mission-card p{margin:4px 0 0;color:#6d7887;font-size:.78rem}.leaderboard-mission-card b{color:#263545;font-size:.76rem;white-space:nowrap}.mission-icon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:#ffffff;font-size:1.05rem}.leaderboard-reset{color:#7b8592;font-size:.78rem;font-weight:700}.leaderboard-table-heading{margin-top:30px}@media (max-width:960px){.leaderboard-climb-card,.leaderboard-mission-grid{grid-template-columns:1fr}}@media (max-width:520px){.leaderboard-climb-card{padding:18px}.leaderboard-climb-stats{grid-template-columns:1fr}.leaderboard-subhead,.leaderboard-table-heading{align-items:flex-start;flex-direction:column}}@media (max-width:720px){.dashboard-page-header{align-items:stretch;flex-direction:column}.dashboard-page-header .btn{width:100%}.dashboard-panel{padding:17px}.dashboard-panel-header{flex-direction:column}.dashboard-empty-table{align-items:stretch;flex-direction:column}}.eyebrow{margin:0 0 10px;text-transform:uppercase;letter-spacing:.08em;font-size:.74rem;color:var(--muted)}h1,h2,h3,h4,h5{margin:0;letter-spacing:-.02em;color:#171a21}h1{font-size:clamp(2.2rem,4.2vw,3.55rem);line-height:1.08;max-width:17ch}h1,h2{font-weight:600}h2{font-size:clamp(1.5rem,2.35vw,2.1rem)}h3{font-size:1.25rem;margin-bottom:10px}h3,h4{font-weight:600}h4{font-size:1rem}p{margin:0;line-height:1.72}.muted,small{color:var(--muted)}.btn{border-radius:12px;border:1px solid var(--border);padding:11px 16px;font:inherit;font-weight:600;cursor:pointer;transition:all .12s ease;display:inline-flex;align-items:center;justify-content:center}.btn-solid{background:#141518;color:#fff;border-color:#141518}.btn-solid:hover{background:#000}.btn-outline{background:var(--surface);color:var(--text)}.btn-outline:hover{background:#f6f7f9}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:18px}.grid-2,.grid-3{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px}.card{position:relative;overflow:hidden;background:#f8f9fb;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:inset 0 1px 0 rgba(255,255,255,.98),inset 0 -1px 0 rgba(203,213,225,.35),0 9px 22px rgba(23,30,43,.07)}.card:after,.card:before{content:"";position:absolute;inset:0;pointer-events:none;display:none}.card>*{position:relative;z-index:1}.hero{padding:4px 0 0}.proof-strip{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.proof-strip span{font-size:.83rem;border:1px solid var(--border);border-radius:999px;padding:7px 12px;background:#fff;color:#383f4a}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;grid-gap:18px;gap:18px;align-items:stretch}.accent-head{display:block;color:#252a34;font-weight:700;font-size:clamp(1.06rem,1.9vw,1.5rem);line-height:1.2;margin-top:8px}.accent-head-1{color:#3f434a;font-size:clamp(2.15rem,4.1vw,3.2rem);line-height:1.1;max-width:18ch}.hero-copy{margin-top:14px;max-width:58ch;color:#3e4450}.hero-actions{margin-top:26px;display:flex;gap:10px;flex-wrap:wrap}.hero-video{display:block;padding:0}.hero-illustration{display:grid;place-items:center;min-height:330px;overflow:hidden}.hero-illustration img{display:block;width:min(100%,440px);height:auto;transform:scaleX(-1)}.centered-page{display:grid;place-items:center;min-height:62vh}.access-card{width:min(560px,100%);text-align:center;padding:42px}.access-card .cta-row{justify-content:center}.onboarding-page{display:grid;place-items:center;min-height:72vh}.onboarding-shell{width:min(590px,100%)}.onboarding-shell h1{max-width:13ch;margin-top:10px}.onboarding-progress{height:6px;border-radius:999px;background:#e7ebef;margin-bottom:44px;overflow:hidden}.onboarding-progress span{display:block;height:100%;border-radius:inherit;background:#243b4a;transition:width .18s ease}.onboarding-options{display:grid;grid-gap:10px;gap:10px;margin:30px 0}.onboarding-option{display:flex;align-items:center;gap:12px;width:100%;padding:17px 18px;border:1px solid var(--border);border-radius:13px;background:#fff;color:#27303a;font:inherit;text-align:left;cursor:pointer;transition:border-color .16s ease,background .16s ease,transform .16s ease}.onboarding-option:hover{transform:translateY(-1px);border-color:#8295a5}.onboarding-option.selected{border-color:#27495b;background:#edf5f4}.option-radio{width:17px;height:17px;border:1px solid #9aa8b1;border-radius:50%}.selected .option-radio{border:5px solid #27495b}.onboarding-note{margin-top:20px;color:#69737d;font-size:.85rem}.video-wrap{position:relative;width:100%;aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:#0f1115}.video-wrap video{position:absolute;inset:0;width:auto;height:100%;margin:auto;max-width:100%;object-fit:contain;display:block}.search-row{display:grid;grid-gap:12px;gap:12px;margin-top:18px}.search-input-wrap{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:12px;padding:0 10px;background:#fff}.search-row input{width:100%;border:none;outline:none;padding:12px 4px;font:inherit;background:transparent}.search-suggestions{display:flex;flex-wrap:wrap;gap:8px}.search-chip{border:1px solid var(--border);background:#fff;border-radius:999px;padding:6px 11px;font-size:.84rem;color:#3a4250}.home-section{margin-top:92px}.section-head{margin:0 0 22px}.graph-panel{display:grid;grid-gap:12px;gap:12px}.graph-svg{width:100%;height:200px}.graph-axis{fill:none;stroke:#a3aab7;stroke-width:1.5}.graph-area{fill:#ebf6ee;stroke:none}.graph-path{fill:none;stroke:#1f7a3e;stroke-width:3}.achievement-list{margin:0;padding:0;list-style:none;display:grid;grid-gap:12px;gap:12px}.achievement-list li{border:1px solid var(--border);border-radius:12px;padding:12px;display:grid;grid-gap:6px;gap:6px}.badge-preview-grid{margin-top:12px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));grid-gap:10px;gap:10px}.badge-preview-item{position:relative;display:flex;justify-content:center}.badge-image{width:74px;height:74px;display:block;object-fit:contain;border:0;border-radius:0;background:transparent;box-shadow:none}.badge-tooltip{position:absolute;left:50%;bottom:calc(100% + 8px);transform:translateX(-50%);width:200px;border:1px solid var(--border);border-radius:10px;background:#fff;padding:8px 10px;display:grid;grid-gap:4px;gap:4px;opacity:0;pointer-events:none;transition:opacity .12s ease;box-shadow:0 8px 18px rgba(16,20,30,.12);z-index:10}.badge-tooltip strong{font-size:.9rem}.badge-tooltip small{font-size:.78rem;line-height:1.5;color:#4f5868}.badge-preview-item:hover .badge-tooltip{opacity:1}.badge-pill{display:inline-flex;align-items:center;gap:6px;width:-moz-fit-content;width:fit-content;border-radius:999px;border:1px solid var(--border);padding:6px 10px;font-weight:600;font-size:.88rem;background:#fafbfc}.feature-pop{background:#fff}.feature-plain{background:transparent;border:none;padding:0}.feature-image-slot{width:100%;border-radius:14px;border:1px solid var(--border);background:transparent;display:block;margin-bottom:12px}.feature-image-theme{position:static;overflow:hidden;background:#eceff3}.feature-img{position:static;display:block;width:100%;height:auto;object-fit:contain;border-radius:14px}.feature-img-dark{display:none}html[data-theme=dark] .feature-image-theme{background:#1f2631}html[data-theme=dark] .feature-img-light{display:none}html[data-theme=dark] .feature-img-dark{display:block}.feature-emoji{display:inline-flex;color:#2f3645}.feature-stack{display:flex;flex-direction:column;gap:30px}.feature-row{display:grid;grid-template-columns:.8fr 1.2fr;grid-gap:26px;gap:26px;align-items:center}.feature-row.feature-row-alt{grid-template-columns:1.2fr .8fr}.feature-row.feature-row-alt .feature-image-slot{order:2}.feature-row.feature-row-alt .feature-copy{order:1}.feature-copy{display:grid;grid-gap:0;gap:0}.feature-copy h3{font-size:1.52rem}.review-card{display:grid;grid-gap:10px;gap:10px}.review-slider-block{display:grid;grid-gap:14px;gap:14px}.rating{display:inline-flex;gap:4px}.rating-star{display:inline-flex;color:#aab0ba}.rating-star.filled{color:#efb518}.review-line{color:#2f3644;font-size:1.03rem}.slider-controls{display:flex;gap:8px}.slider-controls-top{justify-content:flex-end}.slider-btn{min-width:76px}.review-slider-track{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:14px;gap:14px;animation:reviewSlide .42s ease}.review-slider-card{min-height:210px}.slider-dots{display:flex;gap:7px;justify-content:center}.dot{width:9px;height:9px;border-radius:999px;border:1px solid #8f97a6;background:#e5e8ed;cursor:pointer;padding:0}.dot.active{background:#1f232c;border-color:#1f232c}.cta-banner{margin-top:72px;padding:46px 6px 20px;border-radius:16px;border:none;background:transparent;display:grid;grid-gap:12px;gap:12px;justify-items:center;text-align:left}.marketing-page .page-head{margin-bottom:48px}.marketing-page .marketing-stats{margin-top:34px;margin-bottom:0}.marketing-page .cta-banner,.marketing-page .cta-row,.marketing-page .feature-grid,.marketing-page .marketing-footer,.marketing-page .reviews-section{margin-top:56px}.home-section+.cta-banner{margin-top:96px}.cta-banner h2{font-size:clamp(2rem,4.6vw,3rem);line-height:1.08;max-width:24ch;margin-bottom:16px}.dashboard-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-gap:18px;gap:18px}.dashboard-grid-beautified{align-items:start}.dashboard-columns{grid-column:span 12;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:18px;gap:18px;align-items:start}.dashboard-grid-beautified{gap:24px}.dashboard-grid-beautified .dashboard-col>.card,.dashboard-grid-beautified>.card{border-color:#e1e4e8;border-radius:12px;background:#fff;box-shadow:none}.dashboard-grid-beautified .dashboard-ai-strong,.dashboard-grid-beautified .profile-card-hero,.dashboard-grid-beautified .stat-serious{background:#fff}.dashboard-grid-beautified .badge-card,.dashboard-grid-beautified .dashboard-ai{display:none}.dashboard-col{display:grid;grid-gap:18px;gap:18px;align-content:start}.dashboard-col>.card{grid-column:auto}.stat-card{grid-column:span 6}.stat-rank,.stat-score{background:#f8f9fb}.stat-serious{border-color:#d3dae6;background:#f3f6fb}.profile-card{grid-column:span 12}.profile-card-hero{border-color:#d3dae6;background:#f8fafd}.profile-head{display:flex;align-items:center;gap:14px}.profile-head-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.profile-edit-toggle{width:36px;height:36px;padding:0;display:inline-flex;align-items:center;justify-content:center}.profile-avatar-wrap{position:relative}.profile-avatar-edit{position:absolute;right:-4px;bottom:-4px;width:30px;height:30px;border-radius:999px;border:1px solid #d5dbe7;background:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.profile-avatar-edit input{display:none}.profile-avatar-edit.disabled{opacity:.45;cursor:not-allowed}.profile-customize-form{margin-top:10px;display:grid;grid-gap:8px;gap:8px;max-width:520px}.profile-customize-form input{border:1px solid #d5dbe7;border-radius:10px;padding:9px 11px;font:inherit;background:#fff}.profile-save-btn{width:-moz-fit-content;width:fit-content;min-width:140px}.profile-head h3{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.1}.profile-avatar{width:58px;height:58px;border-radius:999px;object-fit:cover;border:1px solid var(--border)}.profile-avatar-fallback{display:inline-flex;align-items:center;justify-content:center;background:#eceff4;color:#2f3645;font-weight:700}.badge-card{overflow:visible}.dashboard-half{grid-column:span 6;min-height:0}.dashboard-ai,.dashboard-tests{min-width:0}.dashboard-status{grid-column:span 12}.dashboard-note{margin-top:8px;font-size:.86rem;color:#374356;border-left:3px solid #cfd8e7;padding-left:8px}.forecast-meta-grid{margin-top:10px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:8px;gap:8px}.forecast-meta-item{border:1px solid #d9dfeb;background:#fff;border-radius:10px;padding:8px 10px;font-size:.84rem;color:#2d3746}.forecast-stats-row{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}.forecast-stat-pill{border:1px solid #d9dfeb;background:#f8fafc;border-radius:999px;padding:7px 11px;display:inline-flex;align-items:center;gap:7px;line-height:1}.forecast-stat-pill small{color:#5b6678;font-size:.78rem}.forecast-stat-pill strong{color:#1b2433;font-size:.87rem;font-weight:700}@media (max-width:640px){.forecast-meta-grid{grid-template-columns:1fr}.forecast-stats-row{gap:6px}.forecast-stat-pill{padding:7px 10px}}.point-meter{margin:14px 0 20px;padding:14px;border-radius:12px;border:1px dashed var(--border);display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}.badge-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:12px;gap:12px}.badge-item{border-radius:12px;border:1px solid var(--border);padding:12px}.badge-item,.badge-tone-1,.badge-tone-2,.badge-tone-3{background:#f9fafb}.badge-item p{margin-top:6px;font-size:.92rem;color:var(--muted)}.table-wrap{overflow-x:auto;width:100%}.dashboard-graph-rich{display:grid;grid-gap:12px;gap:12px}.dashboard-graph-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.dashboard-metric-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid #cfd8e7;border-radius:999px;padding:4px 10px;font-size:.78rem;font-weight:700;color:#2e3b51;background:#f5f8fd}.graph-guide{stroke:#d9e0eb;stroke-width:1}.graph-label{font-size:10px;fill:#6a7383;font-family:var(--font-sans),"Helvetica Neue",sans-serif}.graph-dot{fill:#c5cedd}.graph-dot-latest{fill:#1d7d3a}.graph-dot-hoverable{cursor:pointer;transition:r .12s ease,fill .12s ease}.graph-dot-hoverable:hover{fill:#2b3f6e}.graph-canvas-wrap{position:relative}.graph-tooltip-floating{position:absolute;transform:translate(-10%,-120%);border:1px solid #d5ddeb;border-radius:10px;background:#ffffff;box-shadow:0 8px 18px rgba(14,20,30,.12);padding:8px 10px;display:grid;grid-gap:2px;gap:2px;min-width:170px;pointer-events:none;z-index:3}.graph-tooltip-floating.right{transform:translate(-94%,-120%)}.graph-tooltip-floating strong{color:#162034;font-size:.82rem}.graph-tooltip-floating small{color:#4f5a6d;font-size:.76rem}.graph-hover-panel{border:1px solid #d7deea;border-radius:10px;background:#f7f9fc;padding:8px 10px;display:grid;grid-gap:2px;gap:2px}.graph-hover-panel strong{font-size:.86rem;color:#1b2536}.graph-hover-panel small{color:#4f5a6d}.graph-hover-panel-muted{background:#fafbfd}.dashboard-metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:10px;gap:10px}.dashboard-metric-box{border:1px solid #d7deea;border-radius:10px;background:#f8fafd;padding:8px 10px;display:grid;grid-gap:2px;gap:2px}.dashboard-metric-box small{color:#5d6778;font-size:.76rem}.dashboard-metric-box strong{color:#182130;font-size:.96rem}.dashboard-ai-strong{border-color:#d3dae6;background:#f7f9fc}.dashboard-ai-head{display:flex;align-items:center;justify-content:space-between;gap:10px}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:11px 8px;border-bottom:1px solid #eceff3;font-size:.92rem;vertical-align:middle}.insight-list{margin:0;padding-left:18px;display:grid;grid-gap:10px;gap:10px}.coach-analysis{margin-top:12px;border:1px solid var(--border);border-radius:10px;background:#fafbfc;padding:12px;white-space:pre-wrap;font:inherit;line-height:1.6}.dashboard-tests-mobile-list{display:none}.dashboard-test-mobile-item{border:1px solid #d8deea;border-radius:12px;background:#fbfcff;padding:10px 11px;display:grid;grid-gap:4px;gap:4px}.dashboard-test-mobile-item strong{font-size:.92rem}.dashboard-test-mobile-item small{font-size:.78rem;color:#5f697b}.dashboard-test-mobile-meta{display:flex;gap:10px;justify-content:space-between;flex-wrap:wrap;font-size:.82rem;color:#364253}.list-clean{margin:16px 0 0;padding:0;list-style:none;display:grid;grid-gap:10px;gap:10px}.list-clean li{display:flex;justify-content:space-between;align-items:center;gap:10px;border:1px solid var(--border);border-radius:10px;padding:10px 12px}.tag-filter{display:flex;flex-wrap:wrap;gap:8px}.subject-tag{border:1px solid var(--border);border-radius:999px;padding:6px 11px;font-size:.83rem;background:#fff;color:#374151}button.subject-tag{cursor:pointer}.subject-tag.chemistry,.subject-tag.mathematics,.subject-tag.physics{background:#f6f7f9;border-color:#d4d8de;color:#374151}.subject-tag.physics{background:#ebf2ff;border-color:#c9dafb;color:#214f9a}.subject-tag.chemistry{background:#e9f7ee;border-color:#c6e8d0;color:#1f7135}.subject-tag.mathematics{background:#fff1ec;border-color:#f4d0c3;color:#9a3a2d}.subject-tag.active{box-shadow:inset 0 0 0 1px #2a2f38}.subject-dot.chemistry,.subject-dot.mathematics,.subject-dot.physics{background:#f6f7f9;border-color:#d4d8de;color:#303744}.subject-dot.physics{background:#ebf2ff;border-color:#c9dafb;color:#214f9a}.subject-dot.chemistry{background:#e9f7ee;border-color:#c6e8d0;color:#1f7135}.subject-dot.mathematics{background:#fff1ec;border-color:#f4d0c3;color:#9a3a2d}.test-card{display:flex;flex-direction:column;gap:10px;align-items:start}.test-card-head{gap:8px}.test-stats{display:flex;flex-wrap:wrap;gap:8px}.test-stats span{font-size:.84rem;color:#3f4758;padding:0;background:transparent}.empty-state{color:var(--muted);justify-content:center}.chatbot{padding:16px}.chatbot-premium{border-color:#cfd5de;background:#f7f8fa}.problems-center{min-height:calc(100vh - 110px);display:flex;align-items:flex-start;justify-content:center;padding-top:22px;padding-bottom:112px}.problems-center.initial{align-items:center;padding-top:0}.chatbot-shell{width:min(920px,92vw);display:grid;grid-gap:14px;gap:14px}.problems-center.initial .chatbot-shell{width:min(760px,86vw)}.initial-prompt-head{display:grid;justify-items:center;grid-gap:10px;gap:10px;text-align:left;margin-bottom:4px}.chat-window{min-height:360px;border:none;border-radius:12px;padding:10px 0 18px;background:transparent;display:grid;grid-gap:18px;gap:18px;margin-bottom:14px}.chat-window-premium{height:min(640px,calc(100vh - 240px));min-height:0;max-height:none;background:transparent;overflow-y:auto;scrollbar-width:thin}.chat-bubble{max-width:85%;padding:12px 14px;border-radius:14px;line-height:1.65;font-size:.97rem}.chat-row{display:flex;align-items:flex-start;gap:10px;max-width:min(860px,100%);width:100%;margin:0 auto}.chat-row.user{justify-content:flex-end}.chat-bubble.user{background:#1a1d22;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.16)}.chat-bubble.assistant{border:1px solid #e7eaf0;background:#ffffff;color:#181d26}.chat-web-panel{margin-top:12px;display:grid;grid-gap:12px;gap:12px}.chat-web-block{display:grid;grid-gap:8px;gap:8px}.chat-web-title{margin:0;font-size:.8rem;font-weight:700;color:#4b5260;text-transform:uppercase;letter-spacing:.06em}.chat-web-results{display:grid;grid-gap:8px;gap:8px}.chat-web-result-card{display:grid;grid-gap:4px;gap:4px;padding:10px;border:1px solid #e6e9ef;border-radius:10px;background:#fbfcfe;color:inherit;text-decoration:none}.chat-web-result-card strong{font-size:.9rem;color:#121822}.chat-web-result-card p{margin:0;color:#3a4352;font-size:.86rem}.chat-web-result-card span{color:#5e6776;font-size:.78rem}.chat-image-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:8px;gap:8px}.chat-image-card{border:1px solid #e6e9ef;border-radius:10px;overflow:hidden;background:#fff;color:inherit;text-decoration:none}.chat-image-card img{display:block;width:100%;height:120px;object-fit:cover;background:#f4f6f9}.chat-image-card div{display:grid;grid-gap:2px;gap:2px;padding:8px}.chat-image-card strong{font-size:.82rem;line-height:1.3;color:#1a2230}.chat-image-card span{font-size:.75rem;color:#616b7a}@media (max-width:720px){.chat-image-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:721px) and (max-width:1024px){.chat-image-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}.chat-form{display:flex;align-items:center;gap:10px}.chat-form input{border:1px solid var(--border);border-radius:10px;padding:11px 12px}.chat-form input,.chat-form textarea{flex:1 1;font:inherit;background:#fff}.chat-form textarea{border:1px solid #d7dbe3;border-radius:14px;padding:12px 13px;resize:none;min-height:48px;max-height:220px;overflow-y:auto;line-height:1.55}.send-btn,.voice-btn{width:48px;height:48px;padding:0;flex:0 0 48px}.voice-btn-live{border-color:#d85a4f;color:#d85a4f;background:#fff3f1}.chat-form-initial textarea{padding:15px 14px;min-height:56px;font-size:1rem}.chat-form-initial .send-btn,.chat-form-initial .voice-btn{width:56px;height:56px;flex:0 0 56px}.chat-form-dock{bottom:16px;padding:10px 12px;border:1px solid #d6dbe4;border-radius:16px;background:#ffffff;z-index:60;box-shadow:0 14px 34px rgba(18,21,28,.12)}.chat-form-dock,.voice-error{position:fixed;left:50%;transform:translateX(-50%);width:min(900px,92vw)}.voice-error{bottom:86px;margin:0;color:#9b2f22;font-size:.85rem}.md-content{display:grid;grid-gap:10px;gap:10px}.md-h1,.md-h2,.md-h3{margin:0;font-family:var(--font-sans),"Helvetica Neue",Arial,sans-serif;letter-spacing:-.01em}.md-h1{font-size:1.2rem}.md-h2{font-size:1.1rem}.md-h3{font-size:1rem}.md-p{margin:0}.md-list{margin:0;padding-left:20px;display:grid;grid-gap:6px;gap:6px}.md-ordered{list-style:decimal}.md-math-block{overflow-x:auto;padding:4px 0}.md-code-block{margin:0;padding:10px 12px;border:1px solid #dde2ea;border-radius:10px;background:#f6f8fc;overflow-x:auto}.md-code-lang{display:inline-block;font-size:.75rem;color:#5a6374;margin-bottom:7px}.md-inline-code{border:1px solid #dbe1ea;border-radius:7px;background:#f6f8fc;padding:1px 6px;font-size:.88em;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}.md-math-inline{display:inline-block;margin:0 2px}.login-page{display:grid;place-items:center;min-height:calc(100dvh - 96px);padding-top:0;padding-bottom:0}.login-shell{width:min(520px,92vw)}.login-card{grid-gap:14px;gap:14px;padding:28px}.login-actions,.login-card{display:grid}.login-google,.login-phone{width:100%;justify-content:center;gap:8px}.login-google-icon,.login-phone-icon{width:16px;height:16px;object-fit:contain}.login-divider{display:flex;align-items:center;gap:10px;color:#6b7280;font-size:.88rem}.login-divider:after,.login-divider:before{content:"";height:1px;background:var(--border);flex:1 1}.login-form{display:grid;grid-gap:10px;gap:10px}.login-form label{font-size:.88rem;font-weight:600;color:#2f3746}.login-form input{border:1px solid var(--border);border-radius:10px;padding:11px 12px;font:inherit;background:#fff}.login-alert,.login-error,.login-success{font-size:.9rem;border-radius:10px;padding:10px 12px;overflow-wrap:anywhere;word-break:break-word;white-space:normal}.login-alert{border:1px solid #f0d5a6;background:#fff8ea;color:#7a5a16}.login-error{border:1px solid #efc6b8;background:#fff3ef;color:#8f3524}.login-success{border:1px solid #c9e5d2;background:#effaf2;color:#1f7135}.resource-card{display:grid;grid-gap:10px;gap:10px}.resource-head{display:flex;align-items:center;gap:8px}.cta-row{margin-top:16px;display:flex;gap:10px}.tiny-icon{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:999px;font-size:.72rem;font-weight:700;border:1px solid var(--border);background:#f7f8fa;color:#313744}.tiny-icon.amber,.tiny-icon.blue,.tiny-icon.green,.tiny-icon.mono{background:#f7f8fa;border-color:var(--border);color:#313744}.tiny-icon.blue{background:#ebf2ff;border-color:#c9dafb;color:#214f9a}.tiny-icon.green{background:#e9f7ee;border-color:#c6e8d0;color:#1f7135}.tiny-icon.amber{background:#fff1ec;border-color:#f4d0c3;color:#9a3a2d}.marketing-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px;gap:18px;margin-bottom:22px}.stat-lite{display:grid;grid-gap:8px;gap:8px}.stat-lite strong{font-size:1.2rem;font-family:var(--font-sans),"Helvetica Neue",Arial,sans-serif}.feature-grid{margin-top:8px}.feature-card{position:relative}.feature-icon{display:inline-flex;align-items:center;gap:6px;margin-bottom:10px;padding:6px 10px;border-radius:999px;font-size:.74rem;letter-spacing:.04em;border:1px solid var(--border);background:#f7f8fa;color:#2f3746;font-weight:700}.feature-bullets{margin:12px 0 0;padding-left:18px;display:grid;grid-gap:6px;gap:6px;color:#3e4556;font-size:.93rem}.marketing-footer{margin-top:34px;padding-top:26px;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:24px;gap:24px}.leaderboard-table .leader-row td{transition:background .12s ease}.leaderboard-table .leader-row:hover td{background:#f7f8fa}.rank-badge{display:inline-flex;align-items:center;justify-content:center;min-width:44px;border:1px solid var(--border);border-radius:999px;padding:4px 10px;font-weight:600;background:#fafbfc}.leader-row.rank-1 .rank-badge{background:#fff4dd;border-color:#e8cf9a;color:#7c5a12}.leader-row.rank-2 .rank-badge{background:#f1f4f8;border-color:#cfd6df;color:#4e5868}.leader-row.rank-3 .rank-badge{background:#f7eee8;border-color:#e7c8b8;color:#774733}.streak-chip{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;border:1px solid var(--border);background:#fafbfc;padding:4px 9px;font-size:.82rem;font-weight:600;color:#38414f}.xp-track{width:120px;height:8px;border-radius:999px;background:#e8ebf0;overflow:hidden}.xp-track span{display:block;height:100%;background:#1f7a3e}.leaderboard-goal{margin-bottom:18px;background:#fbfcfe}.leaderboard-page,.shiny-card{position:relative}.shiny-card{overflow:hidden}.shiny-card:after{content:"";position:absolute;inset:-35%;display:none;transform:rotate(6deg);pointer-events:none}.goal-progress-wrap{margin-top:10px;display:grid;grid-gap:6px;gap:6px}.goal-progress{height:10px;border-radius:999px;overflow:hidden;background:#eceff4}.goal-progress span{display:block;height:100%;background:#50c878}.leaderboard-missions{margin-bottom:16px}.mission-card{background:#fff;border-width:2px}.mission-blue{border-color:#b8d5ff;background:#eaf4ff}.mission-green{border-color:#bfe7cc;background:#e8f8ee}.mission-gold{border-color:#f2d9a0;background:#fff2d9}.podium-wrap{margin-bottom:18px;background:#fffaf0}.podium{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:12px;gap:12px;align-items:end}.podium-col{display:grid;justify-items:center;grid-gap:8px;gap:8px}.podium-avatar{width:72px;height:72px;border-radius:999px;border:2px solid #d6dbe2;object-fit:cover;box-shadow:0 0 0 3px rgba(255,255,255,.9),0 8px 18px rgba(0,0,0,.12)}.podium-bar{width:100%;border-radius:12px 12px 6px 6px;background:#eceff4;border:1px solid #d8dde4;text-align:center;padding-top:12px;font-weight:700;color:#2f3440}.podium-col.first .podium-bar{height:130px;background:#f6c953;border-color:#edc167}.podium-col.second .podium-bar{height:102px;background:#d0dbf7;border-color:#c4cee8}.podium-col.third .podium-bar{height:84px;background:#f2c7ad;border-color:#e0b79f}.leaderboard-table-wrap{border:2px solid #d7dcef;background:#f9fbff}.leaderboard-mobile-list{display:none}.leaderboard-mobile-item{border:1px solid #dbe1ec;border-radius:12px;background:#fff;padding:12px;display:grid;grid-gap:8px;gap:8px}.leaderboard-mobile-meta,.leaderboard-mobile-top{display:flex;align-items:center;gap:10px}.leaderboard-mobile-meta{justify-content:space-between;flex-wrap:wrap}.leader-row.rank-1 td{background:rgba(255,236,184,.3)}.leader-row.rank-2 td{background:rgba(220,231,250,.22)}.leader-row.rank-3 td{background:rgba(249,224,207,.28)}.reward-pill{display:inline-flex;align-items:center;justify-content:center;border:1px solid #d8ddea;border-radius:999px;padding:4px 9px;font-size:.8rem;font-weight:700;color:#2a3245;background:#f1f4fa}.test-highlight-row{margin-bottom:16px}.accent-blue{border-color:#c9dafb;background:#f4f8ff}.accent-green{border-color:#c6e8d0;background:#f1fbf4}.accent-red{border-color:#f4d0c3;background:#fff5f1}.tests-search-box{margin:0 0 22px;padding:10px;background:#fff;box-shadow:none}.tests-search{margin:0 0 22px;border-color:#d7dadd;border-radius:10px;padding:0 12px;background:#fff}.tests-search input{width:100%;border:none;outline:none;padding:13px 4px;font:inherit;background:transparent}.tests-page-v2{width:100%}.tests-page-v2 .page-head{margin-bottom:24px}.tests-lead{max-width:620px;margin-top:12px;font-size:1rem}.tests-grid-gap{margin-top:16px}.test-list{margin:16px 0 0;padding:0;list-style:none;display:grid;grid-gap:12px;gap:12px}.test-card-attractive{border:1px solid var(--border);border-radius:12px;padding:14px;background:#fff}.tests-page-v2 .page-head h1{max-width:none;font-size:clamp(2.2rem,4vw,3.4rem);display:block;width:100%;margin:0;text-align:left;white-space:normal;text-wrap:balance}.leaderboard-page .page-head,.resources-page .page-head,.tests-page-v2 .page-head{text-align:left}.dashboard-head h1{font-size:clamp(1.7rem,2.8vw,2.3rem)}.leaderboard-page .page-head h1,.resources-page .page-head h1{font-size:clamp(1.7rem,2.8vw,2.3rem);display:block;width:100%;margin:0;text-align:left;white-space:nowrap;text-wrap:nowrap}.tests-layout{display:grid;grid-template-columns:1.2fr .8fr;grid-gap:16px;gap:16px;margin-top:14px}.tests-layout-v3{display:grid;grid-gap:20px;gap:20px}.tests-top-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px;gap:16px;align-items:start}.tests-bottom-full,.tests-half-panel{min-width:0}.tests-section-head-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:15px;margin-bottom:16px;border-bottom:1px solid #eceef0}.tests-section-head-row h2{margin-right:auto}.tests-left-col{display:grid;grid-gap:16px;gap:16px}.tests-right-col{align-self:start}.test-section-card{padding:22px;border-color:#dfe2e6;background:#fff;box-shadow:none}.tests-card-grid{display:grid;grid-gap:12px;gap:12px}.tests-top-row .tests-card-grid{grid-template-columns:1fr}.tests-card-grid-topic{grid-template-columns:repeat(2,minmax(0,1fr))}.tests-seo-content{max-width:860px;margin-top:64px;padding-top:32px;border-top:1px solid #e5e7ea}.tests-seo-content h2{font-size:clamp(1.6rem,2.5vw,2.15rem);letter-spacing:-.04em}.tests-seo-content>p{max-width:78ch;margin-top:14px;color:#606872;line-height:1.72}.tests-faq-grid{display:grid;grid-gap:10px;gap:10px;margin-top:28px}.tests-faq-grid details{border-top:1px solid #e5e7ea;padding:16px 0}.tests-faq-grid details:last-child{border-bottom:1px solid #e5e7ea}.tests-faq-grid summary{color:#242930;cursor:pointer;font-weight:700}.tests-faq-grid details p{max-width:75ch;margin-top:10px;color:#69727c;font-size:.9rem}.tests-card-grid-full{grid-template-columns:1fr}.test-card-polished{border-color:#e0e3e7;border-radius:10px;padding:16px;box-shadow:none}.test-card-head{display:flex;align-items:center;justify-content:flex-start;min-height:26px}.test-card-tags{flex-wrap:wrap;gap:7px}.test-card-tags,.test-chip{display:inline-flex;align-items:center}.test-chip{border:1px solid #d2d8e2;border-radius:999px;padding:4px 10px;font-size:.76rem;font-weight:700;letter-spacing:.01em;color:#2b3341;background:#f6f8fb}.test-chip.physics{border-color:#c9dafb;background:#edf3ff;color:#214f9a}.test-chip.chemistry{border-color:#c6e8d0;background:#edf9f1;color:#1f7135}.test-chip.mathematics{border-color:#f4d0c3;background:#fff3ee;color:#9a3a2d}.test-chip.neutral{border-color:#d2d8e2;background:#f6f8fb;color:#2b3341}.test-reward-row{display:flex;flex-wrap:wrap;gap:8px}.test-reward-row .test-xp{border:1px solid #c6e8d0;background:#eefbf2;border-radius:999px;padding:4px 9px}.test-cta-row{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px}.test-xp{font-size:.82rem;color:#1f7135;font-weight:600}.test-xp-formula{border-color:#eadb9e!important;background:#fff8dc!important;color:#7a6214!important;display:inline-flex;align-items:center;gap:6px}.demo-modal-backdrop{position:fixed;inset:0;background:rgba(18,20,24,.56);display:flex;align-items:center;justify-content:center;padding:18px;z-index:50}.demo-modal{width:min(840px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:16px;border:1px solid var(--border);padding:20px;display:grid;grid-gap:14px;gap:14px}.demo-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.demo-progress{display:grid;grid-gap:8px;gap:8px}.demo-question{padding:16px}.demo-options{display:grid;grid-gap:10px;gap:10px;margin-top:12px}.demo-option{width:100%;border:1px solid var(--border);border-radius:10px;background:#fff;padding:10px 12px;text-align:left;cursor:pointer;font:inherit}.demo-option.active{border-color:#5f6878;background:#f5f7fa}.demo-actions{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}.demo-finish{display:grid;grid-gap:10px;gap:10px}.resource-section{margin-top:36px}.resource-section-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.resource-section-head h2{margin-right:auto}.resource-slider-controls{display:inline-flex;align-items:center;gap:8px}.resource-slider-btn{width:34px;height:34px;border:1px solid var(--border);border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:#f8f9fb;color:#232a39;cursor:pointer}.resource-slider-btn:disabled{opacity:.45;cursor:not-allowed}.resource-slider-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px;gap:18px}.resource-rich-card{gap:12px}.resource-card-link{display:grid;color:inherit}.resource-card-desc{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.resource-type{margin-left:auto;font-size:.78rem;border:1px solid var(--border);border-radius:999px;padding:4px 8px;color:#586173;background:#f8f9fb}.resource-foot{display:flex;align-items:center;justify-content:space-between;gap:8px}.resource-download{width:34px;height:34px;border:1px solid var(--border);border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:#f8f9fb;color:#232a39}.resource-article-page{width:min(900px,100%);margin:0 auto}.resource-article-head{display:grid;grid-gap:12px;gap:12px;margin-bottom:20px}.resource-article-head h1{max-width:22ch}.resource-article-subtitle{font-size:1.04rem;max-width:70ch}.resource-article-meta{display:flex;flex-wrap:wrap;gap:8px}.resource-article-meta span{border:1px solid var(--border);border-radius:999px;padding:6px 11px;font-size:.83rem;color:#3a4354;background:#f8f9fb}.resource-article-body{display:grid;grid-gap:14px;gap:14px}.resource-article-body h2{margin-top:6px;font-size:1.35rem}.resource-article-list{margin:0;padding-left:20px;display:grid;grid-gap:7px;gap:7px;color:#384153}.roadmap-checklist{display:flex;flex-wrap:wrap;gap:16px;margin:0;padding:0}.roadmap-section{flex-grow:0;flex-shrink:0;flex-basis:calc(50% - 8px);border:1px solid var(--border);border-radius:18px;background:#f6f8fb;padding:16px;display:grid;grid-gap:10px;gap:10px;box-shadow:inset 0 1px 0 rgba(255,255,255,.9),0 10px 24px rgba(18,24,33,.06);min-height:220px}.roadmap-section h3{margin:0;font-size:1.08rem;letter-spacing:-.01em}.roadmap-subtopics{list-style:none;margin:0;padding:0;display:grid;grid-gap:8px;gap:8px}.roadmap-item{border:1px solid var(--border);border-radius:12px;background:#ffffff;padding:10px 12px;min-height:44px}.roadmap-label{display:flex;gap:10px;align-items:flex-start;cursor:pointer;font-weight:600;color:#2b3342}.roadmap-label input{margin-top:3px}.roadmap-item.done{background:#edf7f2;border-color:#c9e7d4}.roadmap-item.done span{text-decoration:line-through;color:#3c4c3f}.roadmap-star{margin-left:auto;display:inline-flex;color:#e0a624}.resource-related{margin-top:28px}.resource-related-card{display:grid;grid-gap:8px;gap:8px}.nta-page{background:#eceef2;min-height:100dvh;padding:0}.exam-mode-sleek{background:#f7f8fb}.exam-mode-sleek .nta-shell{width:min(1480px,96vw);padding:22px 0 34px;background:transparent;border:0}.exam-mode-sleek .nta-topbar{min-height:76px;padding:16px 20px;border:1px solid #e3e7ed;border-radius:18px;background:#ffffff;box-shadow:0 10px 30px rgba(30,42,58,.07)}.exam-mode-sleek .nta-candidate{gap:18px;color:#4c5562}.exam-mode-sleek .nta-candidate p{padding-left:18px;border-left:1px solid #e3e7ed}.exam-mode-sleek .nta-candidate p:first-child{padding-left:0;border-left:0}.exam-mode-control{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}.exam-mode-caption{color:#737c89;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.test-mode-switch{position:relative;width:48px;height:28px;border:0;border-radius:999px;padding:3px;background:#d6dbe3;cursor:pointer;box-shadow:inset 0 0 0 1px rgba(18,25,35,.12);transition:background .18s ease,box-shadow .18s ease}.test-mode-switch:hover{box-shadow:inset 0 0 0 1px rgba(18,25,35,.22),0 3px 10px rgba(24,32,44,.1)}.test-mode-switch.is-nta{background:#286da2}.test-mode-switch-knob{display:block;width:22px;height:22px;border-radius:50%;background:#ffffff;box-shadow:0 2px 5px rgba(22,28,38,.25);transition:transform .18s ease}.test-mode-switch.is-nta .test-mode-switch-knob{transform:translateX(20px)}.exam-mode-sleek .nta-subject-row{margin-top:14px;border:1px solid #e3e7ed;border-radius:14px;background:#ffffff;box-shadow:0 6px 20px rgba(30,42,58,.04)}.exam-mode-sleek .nta-subject-pill.active{border-color:#171c24;background:#171c24;color:#ffffff}.exam-mode-sleek .nta-main{gap:18px;margin-top:18px}.exam-mode-sleek .nta-question-card,.exam-mode-sleek .nta-sidebar{border:1px solid #e3e7ed;border-radius:18px;box-shadow:0 10px 30px rgba(30,42,58,.06)}.exam-mode-sleek .nta-question-head{padding:18px 22px;background:#ffffff}.exam-mode-sleek .nta-question-body{min-height:420px;padding:28px 26px;background:#ffffff}.exam-mode-sleek .nta-question-body p{max-width:940px;font-size:1.08rem;line-height:1.75}.exam-mode-sleek .nta-option{border:1px solid #e1e6ed;border-radius:12px;background:#ffffff;color:#252b35}.exam-mode-sleek .nta-option.active,.exam-mode-sleek .nta-option:hover{border-color:#171c24;background:#f4f6f8}.nta-options-empty{padding:14px 16px;border:1px dashed #ccd3dc;border-radius:12px;color:#687382;font-size:.9rem}.exam-mode-sleek .nta-actions-bottom,.exam-mode-sleek .nta-actions-top{padding:14px 18px;background:#fbfcfd}.exam-mode-sleek .nta-qbtn{border:1px solid #dfe4eb;border-radius:9px;background:#ffffff}.exam-mode-sleek .nta-qbtn.active{border-color:#171c24;box-shadow:inset 0 0 0 2px #171c24}.nta-shell{width:min(1320px,100%);margin:0 auto;background:#f1f3f6;min-height:100dvh;border-left:1px solid #cfd5de;border-right:1px solid #cfd5de}.nta-topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid #cfd5de;background:#e7eaee;padding:14px 20px}.nta-brand{display:grid;grid-gap:3px;gap:3px}.nta-brand strong{font-family:var(--font-sans),"Avenir Next",sans-serif;font-size:1.35rem;letter-spacing:.01em}.nta-brand small{color:#4b5463}.nta-candidate{border:1px solid #cfd5de;background:#fff;border-radius:8px;padding:10px 12px;display:grid;grid-gap:3px;gap:3px;min-width:320px}.nta-candidate p{line-height:1.35;font-size:.92rem}.nta-subject-row{display:flex;flex-wrap:wrap;gap:8px;padding:12px 20px;border-bottom:1px solid #cfd5de;background:#f7f8fa}.nta-subject-pill{border:1px solid #b9c3d2;background:#fff;color:#1f2736;border-radius:8px;padding:8px 12px;font-weight:700;cursor:pointer}.nta-subject-pill.active{background:#12161e;color:#fff;border-color:#12161e}.nta-lang-wrap{margin-left:auto;display:inline-flex;align-items:center;gap:8px}.nta-lang-wrap label{font-size:.88rem;font-weight:600;color:#353e4d}.nta-lang-wrap select{border:1px solid #c8ced8;border-radius:8px;background:#fff;padding:8px 10px;font:inherit}.nta-main{display:grid;grid-template-columns:1fr 340px;grid-gap:16px;gap:16px;padding:18px 20px 22px}.nta-question-card{border:1px solid #cfd5de;border-radius:10px;background:#fff;padding:16px;display:grid;grid-gap:14px;gap:14px}.nta-question-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;border-bottom:1px solid #e3e7ed;padding-bottom:10px}.nta-question-head h3{font-size:1.32rem;margin-bottom:0}.nta-question-body{display:grid;grid-gap:14px;gap:14px}.nta-question-body p{white-space:pre-wrap;font-size:1.03rem;color:#181d26}.nta-question-diagram{margin:2px 0 8px;border:1px solid #d4dae3;border-radius:10px;background:#fff;overflow:hidden}.nta-question-diagram img{display:block;width:100%;max-height:300px;object-fit:contain;background:#fff}.nta-question-diagram figcaption{font-size:.83rem;color:#4a5362;border-top:1px solid #e5e9ef;padding:6px 10px}.nta-options{display:grid;grid-gap:10px;gap:10px}.nta-option{border:1px solid #ccd3dd;border-radius:10px;padding:10px 12px;background:#fff;text-align:left;display:grid;grid-template-columns:32px 1fr;grid-gap:8px;gap:8px;cursor:pointer;font:inherit;color:#1c2330}.nta-option.active{border-color:#141820;background:#f1f4f8}.nta-integer-wrap{display:grid;grid-gap:8px;gap:8px}.nta-integer-wrap label{font-size:.9rem;font-weight:600}.nta-integer-wrap input{border:1px solid #cfd5de;border-radius:9px;padding:10px 12px;font:inherit}.nta-actions-top{flex-wrap:wrap}.nta-actions-bottom,.nta-actions-top{display:flex;align-items:center;gap:8px;border-top:1px solid #e3e7ed;padding-top:12px}.nta-submit-btn{margin-left:auto}.nta-btn-save{background:#24a85e;border-color:#24a85e;color:#fff}.nta-btn-mark{background:#d5922b;border-color:#d5922b;color:#fff}.nta-btn-nextmark{background:#2871c7;border-color:#2871c7;color:#fff}.nta-btn-clear{background:#fff;color:#1d2534;border-color:#bcc6d4}.nta-actions-top .btn{height:38px;min-height:38px;max-height:38px;padding:0 12px;font-size:.86rem;line-height:1;white-space:nowrap;flex:0 0 auto;align-self:center;border-radius:9px}.nta-sidebar{border:1px solid #cfd5de;border-radius:10px;background:#fff;padding:12px;display:grid;grid-gap:14px;gap:14px;align-content:start}.nta-status-legend{display:grid;grid-gap:8px;gap:8px}.nta-status-row{display:grid;grid-template-columns:42px 1fr;grid-gap:8px;gap:8px;align-items:center;font-size:.9rem}.nta-chip{width:42px;height:30px;border-radius:8px;border:1px solid #ccd4de;display:inline-flex;align-items:center;justify-content:center;font-weight:700;color:#17202d}.nta-chip,.nta-chip.not-visited{background:#eef2f7}.nta-chip.not-answered{background:#ffe7df;color:#9d2f1f}.nta-chip.answered{background:#e7f7ea;color:#1f7d35}.nta-chip.marked{background:#f1eaff;color:#5b2ba2}.nta-chip.answered-marked{background:#e8edff;color:#2d4ea3}.nta-question-palette{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-gap:6px;gap:6px}.nta-qbtn{border:1px solid #c7ced9;border-radius:7px;background:#f2f4f8;color:#202838;font-weight:700;font-size:.82rem;padding:8px 0;cursor:pointer}.nta-qbtn.active{box-shadow:inset 0 0 0 2px #171b23}.nta-qbtn.not-answered{background:#ffe7df;color:#8f2718}.nta-qbtn.answered{background:#e7f7ea;color:#1f7d35}.nta-qbtn.marked{background:#f1eaff;color:#5b2ba2}.nta-qbtn.answered_marked{background:#e8edff;color:#2d4ea3}.nta-result-page{padding-top:26px}.nta-result-card{display:grid;grid-gap:12px;gap:12px}.nta-leaderboard-screen{gap:16px}.nta-rank-hero{display:grid;grid-template-columns:1fr 240px;grid-gap:16px;gap:16px;align-items:stretch}.nta-rank-tile{border:1px solid #d6dde8;border-radius:14px;background:#f4f7fd;padding:14px;display:grid;justify-items:center;text-align:center;grid-gap:6px;gap:6px}.nta-rank-icon{width:36px;height:36px;border-radius:50%;background:#11141b;color:#fff;display:inline-flex;align-items:center;justify-content:center}.nta-rank-value{font-size:2rem;line-height:1;color:#151b26;animation:rankPulse .85s ease-in-out infinite alternate}.nta-inline-leaderboard{border-color:#d4dbe7}.nta-inline-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}.nta-inline-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid #d0d8e6;border-radius:999px;padding:4px 10px;font-size:.8rem;color:#2c3648;background:#f6f8fc}.nta-inline-table-wrap{overflow:auto}.nta-inline-table td,.nta-inline-table th{white-space:nowrap}.rank-current td{background:#eaf2ff!important}@keyframes rankPulse{0%{transform:translateY(0)}to{transform:translateY(-2px)}}.site-footer{margin-top:30px;background:#0e0f12;color:#d7dce5;border-top:1px solid #0e0f12}.site-footer-wrap{display:grid;grid-template-columns:1.5fr 1fr 1fr;grid-gap:28px;gap:28px;padding:78px 0 90px}.footer-bottom{border-top:none;padding:16px 0 24px;color:#9da5b3;text-align:center}@keyframes reviewSlide{0%{opacity:0;transform:translateX(14px)}to{opacity:1;transform:translateX(0)}}.footer-brand{display:grid;grid-gap:12px;gap:12px}.footer-brand h3{color:#f4f6fa}.footer-brand .muted{color:#a4acba}.footer-socials{display:flex;gap:9px;margin-top:4px}.social-icon{border:1px solid #2b3038;border-radius:999px;width:48px;height:48px;font-size:.8rem;background:#14171d;color:#d9dee7;display:inline-flex;align-items:center;justify-content:center}.social-icon-img{width:24px;height:24px;filter:invert(1) grayscale(1) brightness(1.75);transition:filter .14s ease,transform .14s ease}.social-icon:hover{background:#1a1e25}.social-icon:hover .social-icon-img{filter:invert(1) grayscale(0) brightness(2.4);transform:scale(1.06)}.footer-links{display:grid;align-content:start;grid-gap:10px;gap:10px}.footer-links h4{color:#f4f6fa;margin-bottom:4px}.footer-links a{color:#b2b8c4;font-size:.94rem}.footer-links a:hover{color:#eceff4}html[data-theme=dark] h1,html[data-theme=dark] h2,html[data-theme=dark] h3,html[data-theme=dark] h4,html[data-theme=dark] h5{color:var(--text)}html[data-theme=dark] .card{position:relative;overflow:hidden;background:#1f2630;border-color:#3a4455;box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 10px 24px rgba(0,0,0,.24)}html[data-theme=dark] .badge-card{overflow:visible}html[data-theme=dark] .card:before{content:"";position:absolute;inset:0;pointer-events:none;display:none}html[data-theme=dark] .card:after{display:none}html[data-theme=dark] .card>*{position:relative;z-index:1}html[data-theme=dark] .card li,html[data-theme=dark] .card p,html[data-theme=dark] .card small,html[data-theme=dark] .card span:not(.tiny-icon):not(.dashboard-metric-chip):not(.streak-chip):not(.rank-badge):not(.reward-pill):not(.test-chip){color:#dbe3ef}html[data-theme=dark] .brand{color:var(--text)}html[data-theme=dark] .brand-logo{filter:brightness(0) invert(1)}html[data-theme=dark] .nav-link{color:#cfd6e2}html[data-theme=dark] .nav-link.active,html[data-theme=dark] .nav-link:hover{background:#232a34;color:#f2f5fb}html[data-theme=dark] .nav-icon,html[data-theme=dark] .profile-menu-item,html[data-theme=dark] .profile-menu-trigger{color:#d5dce7}html[data-theme=dark] .profile-menu-dropdown{box-shadow:0 12px 30px rgba(0,0,0,.35)}html[data-theme=dark] .dashboard-metric-box,html[data-theme=dark] .dashboard-metric-chip,html[data-theme=dark] .feature-icon,html[data-theme=dark] .forecast-stat-pill,html[data-theme=dark] .graph-hover-panel,html[data-theme=dark] .pill,html[data-theme=dark] .proof-strip span,html[data-theme=dark] .rank-badge,html[data-theme=dark] .resource-download,html[data-theme=dark] .resource-slider-btn,html[data-theme=dark] .resource-type,html[data-theme=dark] .reward-pill,html[data-theme=dark] .search-input-wrap,html[data-theme=dark] .streak-chip,html[data-theme=dark] .test-stats span,html[data-theme=dark] .tiny-icon{background:#202733;border-color:#313949;color:#dbe3ef}html[data-theme=dark] .btn-outline{background:#1f2631;color:#e7edf7;border-color:#353f50}html[data-theme=dark] .btn-outline:hover{background:#273040}html[data-theme=dark] .btn-solid{background:#e9edf5;color:#12161e;border-color:#e9edf5}html[data-theme=dark] .btn-solid:hover{background:#f7f9fc}html[data-theme=dark] .table-wrap td,html[data-theme=dark] .table-wrap th,html[data-theme=dark] td,html[data-theme=dark] th{border-bottom-color:#2d3544}html[data-theme=dark] .badge-item,html[data-theme=dark] .chat-bubble.assistant,html[data-theme=dark] .chat-form-dock,html[data-theme=dark] .chat-image-card,html[data-theme=dark] .chat-web-result-card,html[data-theme=dark] .chatbot-premium,html[data-theme=dark] .coach-analysis,html[data-theme=dark] .dashboard-test-mobile-item,html[data-theme=dark] .leaderboard-goal,html[data-theme=dark] .leaderboard-mobile-item,html[data-theme=dark] .leaderboard-table-wrap,html[data-theme=dark] .login-alert,html[data-theme=dark] .login-error,html[data-theme=dark] .login-success,html[data-theme=dark] .md-code-block,html[data-theme=dark] .md-inline-code,html[data-theme=dark] .mission-card,html[data-theme=dark] .podium-wrap,html[data-theme=dark] .test-card-attractive{background:#1b212b;border-color:#303847;color:#e4eaf3}html[data-theme=dark] .chat-image-card strong,html[data-theme=dark] .chat-web-result-card strong,html[data-theme=dark] .chat-web-title,html[data-theme=dark] .graph-tooltip-floating strong,html[data-theme=dark] .login-form label{color:#e5ebf6}html[data-theme=dark] .chat-image-card span,html[data-theme=dark] .chat-web-result-card p,html[data-theme=dark] .chat-web-result-card span,html[data-theme=dark] .graph-tooltip-floating small{color:#aeb8c8}html[data-theme=dark] .chat-form input,html[data-theme=dark] .chat-form textarea,html[data-theme=dark] .login-form input,html[data-theme=dark] .nta-integer-wrap input,html[data-theme=dark] .nta-lang-wrap select,html[data-theme=dark] .profile-customize-form input,html[data-theme=dark] .search-row input{background:#171d26;color:#e9eef8;border-color:#313949}html[data-theme=dark] .chat-form input::placeholder,html[data-theme=dark] .chat-form textarea::placeholder,html[data-theme=dark] .profile-customize-form input::placeholder,html[data-theme=dark] .search-row input::placeholder{color:#8893a6}html[data-theme=dark] .chat-image-card img{background:#222936}html[data-theme=dark] .dashboard-test-mobile-item small,html[data-theme=dark] .dashboard-test-mobile-meta{color:#aeb8c8}html[data-theme=dark] .graph-tooltip-floating{background:#1a202a;border-color:#313949}html[data-theme=dark] .feature-row{border-color:#303847;background:#1b212b}html[data-theme=dark] .graph-guide{stroke:#2e3746}html[data-theme=dark] .graph-label{fill:#95a0b3}html[data-theme=dark] .dashboard-ai-strong{background:#151b24;border-color:#313949}html[data-theme=dark] .goal-progress{background:#2a3240}html[data-theme=dark] .leaderboard-table .leader-row:hover td{background:#232a35}html[data-theme=dark] .shiny-card:after{display:none}html[data-theme=dark] .nta-page{background:#0f1319}html[data-theme=dark] .nta-shell{background:#141922;border-color:#2d3644}html[data-theme=dark] .nta-subject-row,html[data-theme=dark] .nta-topbar{background:#1a202a;border-color:#2d3644}html[data-theme=dark] .nta-brand strong,html[data-theme=dark] .nta-question-body p,html[data-theme=dark] .nta-status-row{color:#e9eef8}html[data-theme=dark] .nta-brand small,html[data-theme=dark] .nta-lang-wrap label,html[data-theme=dark] .nta-question-diagram figcaption{color:#a7b2c4}html[data-theme=dark] .nta-candidate,html[data-theme=dark] .nta-question-card,html[data-theme=dark] .nta-question-diagram,html[data-theme=dark] .nta-sidebar{background:#1b212b;border-color:#303847}html[data-theme=dark] .nta-question-diagram img{background:#1b212b}html[data-theme=dark] .nta-subject-pill{background:#232b37;color:#dce4ef;border-color:#394354}html[data-theme=dark] .nta-subject-pill.active{background:#ebf0f9;color:#10141b;border-color:#ebf0f9}html[data-theme=dark] .nta-option{background:#171d26;border-color:#313949;color:#e6edf8}html[data-theme=dark] .nta-option.active{background:#212a38;border-color:#5e7cae}html[data-theme=dark] .nta-actions-bottom,html[data-theme=dark] .nta-actions-top,html[data-theme=dark] .nta-question-head{border-color:#303847}html[data-theme=dark] .nta-btn-clear{background:#222b37;color:#dce4ef;border-color:#3a4557}html[data-theme=dark] .nta-qbtn{background:#222a35;color:#cfd7e5;border-color:#364050}html[data-theme=dark] .nta-qbtn.active{box-shadow:inset 0 0 0 2px #c7d3e6}html[data-theme=dark] .nta-inline-chip,html[data-theme=dark] .nta-rank-tile{background:#1e2632;border-color:#344052;color:#d8e1ee}html[data-theme=dark] .nta-rank-icon{background:#e8edf6;color:#121720}html[data-theme=dark] .nta-rank-value{color:#eaf0f8}html[data-theme=dark] .rank-current td{background:#24354f!important}html[data-theme=dark] .test-chip,html[data-theme=dark] .test-chip.chemistry,html[data-theme=dark] .test-chip.mathematics,html[data-theme=dark] .test-chip.neutral,html[data-theme=dark] .test-chip.physics{color:#12161e!important}@media (max-width:960px){.container{width:min(1160px,95vw)}.page{padding:34px 0 64px}h1{max-width:none}.nav-wrap{row-gap:10px}.nav-links{width:100%;order:3;overflow-x:auto;flex-wrap:nowrap;padding-bottom:2px;scrollbar-width:thin}.nav-link{white-space:nowrap;flex:0 0 auto;padding:8px 11px}.nav-right{margin-left:auto}.badge-list,.dashboard-columns,.dashboard-grid,.feature-row,.feature-row.feature-row-alt,.grid-2,.grid-3,.hero-grid,.marketing-footer,.marketing-stats,.podium,.resource-slider-grid,.site-footer-wrap{grid-template-columns:1fr}.feature-row.feature-row-alt .feature-copy,.feature-row.feature-row-alt .feature-image-slot{order:0}.badge-preview-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.badge-card,.dashboard-half,.dashboard-status,.stat-card{grid-column:span 1}.dashboard-grid{gap:14px}.dashboard-metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dashboard-col,.dashboard-columns{gap:14px}.chatbot-shell{width:min(920px,95vw)}.nta-main,.tests-card-grid-topic,.tests-layout,.tests-top-row{grid-template-columns:1fr}.nta-candidate{min-width:0}.nta-rank-hero{grid-template-columns:1fr}.nta-question-palette{grid-template-columns:repeat(10,minmax(0,1fr))}.problems-center.initial .chatbot-shell{width:min(760px,92vw)}.chat-window-premium{height:min(640px,calc(100vh - 260px))}.chat-form{align-items:flex-end}.chat-form-dock,.voice-error{width:min(900px,95vw)}.review-slider-track{grid-template-columns:1fr}}@media (max-width:720px){.nav-wrap{min-height:64px;padding:10px 0}.brand{font-size:1.34rem}.brand-logo{width:36px;height:36px}h1{font-size:clamp(1.86rem,7vw,2.35rem);line-height:1.14}.page-head h1{font-size:clamp(1.64rem,6.4vw,2.05rem);max-width:none}h2{font-size:clamp(1.34rem,5vw,1.72rem)}.card{padding:16px}.cta-row,.hero-actions{gap:8px}.cta-row .btn,.hero-actions .btn{width:100%}.hero{padding-top:0}.hero-grid{gap:16px}.accent-head-1{font-size:clamp(1.92rem,6.8vw,2.4rem);max-width:none}.accent-head{font-size:clamp(1rem,4vw,1.22rem)}.hero-grid>aside{order:-1}.home-section{margin-top:48px}.marketing-page .page-head{margin-bottom:28px}.marketing-page .marketing-stats{margin-top:30px}.marketing-page .cta-banner,.marketing-page .cta-row,.marketing-page .feature-grid,.marketing-page .marketing-footer,.marketing-page .reviews-section{margin-top:36px}.home-section+.cta-banner{margin-top:52px}.feature-row{border-radius:14px;padding:12px;border:1px solid #d8dee9;background:#fff;gap:10px}.feature-copy h3{font-size:1.04rem;line-height:1.25}.feature-copy p{font-size:.92rem;line-height:1.55}.tests-page-v2 .page-head h1{max-width:none}.dashboard-head h1,.leaderboard-page .page-head h1,.resources-page .page-head h1,.tests-page-v2 .page-head h1{font-size:clamp(1.08rem,4.4vw,1.35rem)}.tests-layout-v3{gap:12px}.tests-section-head-row{flex-wrap:wrap;margin-bottom:10px}.tests-section-head-row h2{width:100%}.tests-top-row .tests-card-grid{display:flex;overflow-x:auto;gap:10px;padding-bottom:6px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}.tests-top-row .tests-card-grid .test-card{min-width:min(86vw,320px);scroll-snap-align:start}.tests-card-grid-topic{grid-template-columns:1fr;gap:10px}.nta-shell{border-left:none;border-right:none}.nta-topbar{flex-direction:column;align-items:stretch;padding:12px}.nta-subject-row{padding:10px 12px}.nta-main{gap:10px}.nta-main,.nta-question-card,.nta-sidebar{padding:12px}.nta-inline-head{flex-direction:column;align-items:flex-start}.nta-question-palette{grid-template-columns:repeat(6,minmax(0,1fr))}.nta-actions-bottom{flex-wrap:wrap}.nta-submit-btn{margin-left:0;width:100%}.badge-preview-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.badge-image{width:60px;height:60px}.badge-tooltip{width:180px}.profile-head{align-items:flex-start}.profile-avatar{width:48px;height:48px}.profile-customize-form{max-width:100%}.profile-save-btn{width:100%}.point-meter{flex-direction:column;align-items:flex-start}.dashboard-metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.dashboard-tests .table-wrap{display:none}.dashboard-tests-mobile-list{display:grid;grid-gap:8px;gap:8px;margin-bottom:10px}.dashboard-ai-head,.dashboard-graph-head{flex-direction:column;align-items:flex-start}.graph-tooltip-floating{min-width:150px}td,th{padding:9px 7px;font-size:.85rem}.podium{grid-template-columns:1fr;gap:10px}.podium-col{grid-template-columns:72px 1fr;display:grid;align-items:center;justify-items:start;grid-gap:10px;gap:10px;border:1px solid #dbe1ec;border-radius:12px;padding:10px;background:#fff}.podium-avatar{width:64px;height:64px}.podium-col .podium-bar{grid-column:1/-1;width:100%;height:auto!important;padding:8px 10px;border-radius:10px}.leaderboard-table-wrap .table-wrap{display:none}.leaderboard-mobile-list{display:grid;grid-gap:10px;gap:10px}.resource-section-head{align-items:flex-start}.resource-section-head h2{margin-right:0;width:100%}.resource-slider-controls{margin-top:2px;width:100%;justify-content:flex-end}.roadmap-checklist{flex-direction:column}.roadmap-section{flex:1 1 auto;min-height:0}.demo-modal{padding:14px;border-radius:14px}.demo-modal-head{flex-direction:column}.test-cta-row{flex-wrap:wrap}.chat-row{max-width:100%}.chat-bubble{max-width:92%;font-size:.93rem}.chat-form textarea{min-height:46px}.send-btn,.voice-btn{width:44px;height:44px;flex-basis:44px}.chat-form-dock{bottom:10px;padding:8px 10px;border-radius:14px}.voice-error{bottom:74px;font-size:.8rem}.site-footer-wrap{padding:48px 0 60px;gap:20px}.social-icon{width:42px;height:42px}}@media (max-width:520px){.page{padding:26px 0 56px}.nav-link{font-size:.87rem;padding:7px 10px}.pill{padding:6px 10px}.pill,.proof-strip span,.subject-tag{font-size:.78rem}.marketing-stats .card,.review-slider-card{min-height:auto}.test-stats span{font-size:.78rem}.dashboard-metrics-grid{grid-template-columns:1fr}.tests-top-row .tests-card-grid .test-card{min-width:90vw}.leaderboard-mobile-item{padding:10px}.chat-window{min-height:300px;gap:14px}.chat-window-premium{height:min(640px,calc(100vh - 230px))}.chat-form{gap:8px}.chat-form textarea{padding:10px 12px}.chat-form-dock,.voice-error{width:96vw}}.exam-mode-sleek{overflow-x:hidden}.exam-mode-sleek .nta-brand,.exam-mode-sleek .nta-candidate,.exam-mode-sleek .nta-main,.exam-mode-sleek .nta-question-body,.exam-mode-sleek .nta-question-card,.exam-mode-sleek .nta-shell,.exam-mode-sleek .nta-sidebar{min-width:0}.exam-mode-sleek .nta-shell{max-width:100%;overflow:hidden}.exam-mode-sleek .nta-topbar{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,360px) auto;align-items:center}.exam-mode-sleek .nta-candidate{grid-template-columns:repeat(3,minmax(0,1fr));min-width:0}.exam-mode-sleek .nta-candidate p{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.exam-mode-sleek .nta-main{grid-template-columns:minmax(0,1fr) minmax(260px,320px)}.exam-mode-sleek .nta-question-head{min-width:0;flex-wrap:wrap}.exam-mode-sleek .nta-question-head .muted{min-width:0;margin-left:auto;overflow-wrap:anywhere;text-align:right}.exam-mode-sleek .nta-question-body{overflow:hidden}.exam-mode-sleek .nta-question-body p{overflow-wrap:anywhere;word-break:break-word}.exam-mode-sleek .nta-actions-top{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.exam-mode-sleek .nta-actions-top .btn{width:100%;min-width:0;white-space:normal}.exam-mode-sleek .nta-actions-bottom{flex-wrap:wrap}.exam-mode-sleek .nta-actions-bottom .btn{min-width:0}@media (max-width:960px){.exam-mode-sleek .nta-topbar{grid-template-columns:minmax(0,1fr) auto}.exam-mode-sleek .nta-candidate{grid-column:1/-1;grid-row:2;grid-template-columns:repeat(3,minmax(0,1fr))}.exam-mode-sleek .nta-main{grid-template-columns:1fr}.exam-mode-sleek .nta-sidebar{order:2}}@media (max-width:600px){.exam-mode-sleek .nta-shell{width:100%;padding:10px 0 20px}.exam-mode-sleek .nta-topbar{grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:14px;border-radius:14px}.exam-mode-sleek .nta-brand strong{font-size:1.05rem}.exam-mode-sleek .nta-brand small{font-size:.78rem}.exam-mode-sleek .nta-candidate{grid-template-columns:1fr;gap:6px}.exam-mode-sleek .nta-candidate p{border-left:0;padding-left:0;white-space:normal}.exam-mode-sleek .nta-question-head .muted{width:100%;margin-left:0;text-align:left}.exam-mode-sleek .nta-actions-top{grid-template-columns:1fr}.exam-mode-sleek .nta-actions-bottom .nta-submit-btn{width:100%;margin-left:0}}.nta-page{height:100dvh;overflow:hidden}.nta-page .nta-shell{height:100%;display:grid;grid-template-rows:auto auto minmax(0,1fr)}.nta-page .nta-main{min-height:0;overflow:hidden}.nta-page .nta-question-card{min-height:0;grid-template-rows:auto minmax(0,1fr) auto auto;overflow:hidden}.nta-page .nta-question-body,.nta-page .nta-sidebar{min-height:0;overflow-y:auto;overscroll-behavior:contain}.exam-brand-lockup{display:inline-flex;align-items:center;gap:10px}.exam-brand-lockup img{display:block;width:42px;height:42px;object-fit:contain}.exam-back-link{display:inline-flex;align-items:center;gap:6px;width:-moz-fit-content;width:fit-content;margin-bottom:10px;color:#687383;font-size:.78rem;font-weight:700;text-decoration:none}.exam-back-link:hover{color:#171c24}.exam-back-link span{font-size:1rem;line-height:1}.exam-mode-sleek .nta-brand{gap:0}.exam-mode-sleek .exam-brand-lockup strong{display:block;color:#171c24;font-family:var(--font-sans),"Avenir Next",sans-serif;font-size:1.3rem}.exam-mode-sleek .exam-brand-lockup small{display:block;color:#737c89;font-size:.78rem}.exam-mode-nta .nta-brand{gap:0}.exam-mode-nta .exam-back-link{color:#4d6e8a}.exam-mode-nta .exam-brand-lockup strong{display:block;color:#173f72;font-family:Arial,Helvetica,sans-serif;font-size:clamp(1.25rem,2vw,2rem);font-weight:800;text-transform:uppercase}.exam-mode-nta .exam-brand-lockup small{display:block;color:#2a7f32;font-family:Arial,Helvetica,sans-serif;font-size:.78rem;font-weight:700;text-transform:uppercase}.exam-mode-nta .nta-brand>.exam-brand-lockup{align-items:center}@media (max-width:960px){.nta-page .nta-main{overflow-y:auto}}@media (max-width:720px){.nta-page{height:auto;min-height:100dvh;overflow:visible}.nta-page .nta-shell{height:auto;min-height:100dvh;display:block}.nta-page .nta-main,.nta-page .nta-question-body,.nta-page .nta-question-card,.nta-page .nta-sidebar{overflow:visible}.exam-brand-lockup img{width:36px;height:36px}}.exam-mode-nta{background:#ffffff;color:#333333}.exam-mode-nta .nta-shell{width:min(1480px,100%);background:#ffffff;border-left:1px solid #c8c8c8;border-right:1px solid #c8c8c8}.exam-mode-nta .nta-topbar{position:relative;display:grid;grid-template-columns:minmax(220px,1fr) minmax(460px,1.7fr) auto;align-items:center;grid-gap:24px;gap:24px;min-height:142px;padding:48px 28px 18px;border-bottom:1px solid #d7d7d7;background:#ffffff}.exam-mode-nta .nta-topbar:before{position:absolute;inset:0 0 auto;height:36px;background:#2d6595;content:""}.exam-mode-nta .nta-topbar:after{position:absolute;top:0;right:28px;display:inline-flex;align-items:center;height:36px;color:#ffffff;content:"▣  Home";font-size:.92rem;font-weight:700}.exam-mode-nta .nta-brand{align-self:stretch;align-content:center;padding-right:22px;border-right:4px solid #555555}.exam-mode-nta .nta-brand strong{color:#173f72;font-family:Arial,Helvetica,sans-serif;font-size:clamp(1.25rem,2vw,2rem);font-weight:800;letter-spacing:.02em;text-transform:uppercase}.exam-mode-nta .nta-brand small{color:#2a7f32;font-family:Arial,Helvetica,sans-serif;font-size:.78rem;font-weight:700;text-transform:uppercase}.exam-mode-nta .nta-candidate{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:4px 18px;gap:4px 18px;border-radius:0}.exam-mode-nta .nta-candidate p{min-width:0;color:#555555;font-size:.88rem;line-height:1.3;white-space:nowrap}.exam-mode-nta .nta-candidate strong{font-size:1rem}.exam-mode-nta .exam-mode-control{z-index:1;align-self:start;margin-top:-2px}.exam-mode-nta .exam-mode-caption{color:#2d6595}.exam-mode-nta .nta-subject-row{gap:0;padding:0 28px;border-bottom:1px solid #cfcfcf;background:#f3f3f3}.exam-mode-nta .nta-subject-pill{border-right:1px solid #d0d0d0;background:transparent;color:#404040;font-size:.9rem}.exam-mode-nta .nta-subject-pill.active{background:#2d6595;color:#ffffff}.exam-mode-nta .nta-lang-wrap{padding:8px 0 8px 18px}.exam-mode-nta .nta-lang-wrap select{min-width:150px;border:1px solid #c7c7c7;border-radius:0;color:#444444;background:#ffffff}.exam-mode-nta .nta-main{background:#ffffff}.exam-mode-nta .nta-question-card{gap:0;border-right:1px solid #d0d0d0;padding:0 28px 18px;box-shadow:none}.exam-mode-nta .nta-question-head{align-items:center;min-height:64px;padding:16px 0 12px}.exam-mode-nta .nta-question-head h3{color:#333333;font-family:Arial,Helvetica,sans-serif;font-size:1.18rem}.exam-mode-nta .nta-question-head .muted{color:#5f5f5f;font-family:Arial,Helvetica,sans-serif;font-size:.82rem}.exam-mode-nta .nta-question-body{min-height:460px;padding:26px 10px 30px;background:#ffffff}.exam-mode-nta .nta-question-body p{max-width:none;color:#333333;font-family:Arial,Helvetica,sans-serif;font-size:1.02rem;line-height:1.65}.exam-mode-nta .nta-question-diagram{border:0;border-radius:0}.exam-mode-nta .nta-option{color:#444444;font-family:Arial,Helvetica,sans-serif}.exam-mode-nta .nta-option.active,.exam-mode-nta .nta-option:hover{border:0;background:#f0f5fb;box-shadow:inset 4px 0 0 #2d6595}.exam-mode-nta .nta-actions-bottom,.exam-mode-nta .nta-actions-top{gap:8px;padding:14px 10px;border-top:1px solid #d4d4d4}.exam-mode-nta .nta-actions-bottom .btn,.exam-mode-nta .nta-actions-top .btn{border-radius:0;font-family:Arial,Helvetica,sans-serif;font-weight:800;letter-spacing:.04em;text-transform:uppercase}.exam-mode-nta .nta-actions-top .btn{white-space:normal}.exam-mode-nta .nta-btn-save,.exam-mode-nta .nta-submit-btn{background:#55b65b;border-color:#55b65b}.exam-mode-nta .nta-btn-mark{background:#f2ad42;border-color:#f2ad42}.exam-mode-nta .nta-btn-nextmark{background:#397db5;border-color:#397db5}.exam-mode-nta .nta-sidebar{align-content:start;min-height:100%;padding:18px 18px 24px;background:#ffffff;box-shadow:none}.exam-mode-nta .nta-status-legend{gap:10px;padding:20px 18px;border:3px dotted #666666}.exam-mode-nta .nta-status-row{grid-template-columns:48px 1fr;color:#555555;font-family:Arial,Helvetica,sans-serif;font-size:.9rem}.exam-mode-nta .nta-chip{width:42px;height:34px;border:1px solid #aaaaaa;border-radius:4px;font-family:Arial,Helvetica,sans-serif}.exam-mode-nta .nta-chip.not-answered{background:#e84a17;color:#ffffff}.exam-mode-nta .nta-chip.answered{background:#19a900;color:#ffffff}.exam-mode-nta .nta-chip.answered-marked,.exam-mode-nta .nta-chip.marked{border-radius:50%;background:#5d22b6;color:#ffffff}.exam-mode-nta .nta-question-palette{padding-top:18px}.exam-mode-nta .nta-qbtn{border:1px solid #b2b2b2;padding:8px 0;background:#eeeeee;color:#444444;font-family:Arial,Helvetica,sans-serif}.exam-mode-nta .nta-qbtn.not-answered{border-color:#e84a17;background:#e84a17;color:#ffffff}.exam-mode-nta .nta-qbtn.answered{border-color:#19a900;background:#19a900;color:#ffffff}.exam-mode-nta .nta-qbtn.answered_marked,.exam-mode-nta .nta-qbtn.marked{border-color:#5d22b6;background:#5d22b6;color:#ffffff}.exam-mode-nta .nta-qbtn.active{box-shadow:inset 0 0 0 2px #111111}@media (max-width:960px){.exam-mode-nta .nta-topbar{grid-template-columns:1fr auto;min-height:0}.exam-mode-nta .nta-brand{border-right:0}.exam-mode-nta .nta-candidate{grid-column:1/-1;grid-row:2}.exam-mode-nta .nta-question-card{border-right:0}}@media (max-width:600px){.exam-mode-nta .nta-topbar{grid-template-columns:1fr auto;gap:12px;padding:44px 14px 14px}.exam-mode-nta .nta-topbar:after{right:14px}.exam-mode-nta .nta-candidate{grid-template-columns:1fr}.exam-mode-nta .nta-candidate p{white-space:normal}.exam-mode-nta .nta-subject-row{padding:0 12px}.exam-mode-nta .nta-lang-wrap{width:100%;margin-left:0;padding-left:0}.exam-mode-nta .nta-lang-wrap select{flex:1 1}.exam-mode-nta .nta-question-card{padding:0 14px 14px}.exam-mode-nta .nta-sidebar{padding:14px}}.exam-mode-nta .nta-topbar:after,.exam-mode-nta .nta-topbar:before{display:none}.exam-mode-nta .nta-topbar{min-height:104px;padding:18px 28px}@media (max-width:600px){.exam-mode-nta .nta-topbar{min-height:0;padding:18px 14px}}.nta-page .nta-candidate{grid-template-columns:1fr;gap:5px}.nta-page .nta-candidate p{display:grid;grid-template-columns:max-content 14px minmax(0,1fr);align-items:baseline;grid-gap:0;gap:0;min-width:0;padding:0;border:0;white-space:normal}.candidate-label{color:#657080;font-weight:600}.candidate-colon{color:#657080;text-align:center}.nta-page .nta-candidate strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.exam-mode-sleek .nta-candidate strong{color:#171c24}@media (max-width:600px){.nta-page .nta-candidate p{grid-template-columns:112px 14px minmax(0,1fr)}}.exam-mode-nta .nta-topbar{grid-template-columns:minmax(300px,1fr) minmax(500px,1.35fr) auto;min-height:106px;padding:12px 34px;gap:26px}.exam-mode-nta .nta-brand{align-self:center;padding:0;border:0}.exam-mode-nta .nta-official-logo{display:block;width:min(390px,100%);height:auto;object-fit:contain}.exam-mode-nta .nta-candidate{display:flex;align-items:center;gap:12px;min-width:0;padding:0;border:0;background:transparent}.exam-mode-nta .nta-candidate-avatar{flex:0 0 auto;width:70px;height:65px;padding:3px;border:2px solid #777777;object-fit:contain}.exam-mode-nta .nta-candidate-details{display:grid;grid-gap:4px;gap:4px;min-width:0}.exam-mode-nta .nta-candidate p{font-family:Arial,Helvetica,sans-serif;font-size:.87rem}.exam-mode-nta .nta-candidate strong{color:#f28b1d;font-size:.94rem}.exam-mode-nta .nta-subject-row{min-height:72px;align-items:center;flex-wrap:nowrap;gap:10px;padding:10px 34px;border:0;background:#f7941d}.exam-mode-nta .nta-exam-label{padding-right:8px;font-size:1.05rem;letter-spacing:.04em}.exam-mode-nta .nta-exam-label,.exam-mode-nta .nta-subject-pill{flex:0 0 auto;color:#ffffff;font-family:Arial,Helvetica,sans-serif}.exam-mode-nta .nta-subject-pill{min-width:104px;border:0;border-radius:0;padding:11px 16px;background:#397db5;font-size:.82rem}.exam-mode-nta .nta-subject-pill.active,.exam-mode-nta .nta-subject-pill:hover{background:#245f93;color:#ffffff}.exam-mode-nta .nta-lang-wrap{flex:0 0 164px;margin-left:8px;padding:0;display:grid;grid-gap:4px;gap:4px;align-items:stretch}.exam-mode-nta .nta-lang-wrap label{color:#ffffff;font-size:.72rem;font-weight:800}.exam-mode-nta .nta-lang-wrap select{min-width:0;padding:7px 9px;border:0;border-radius:4px;font-size:.82rem}.exam-mode-nta .nta-main{grid-template-columns:minmax(0,1fr) 390px;gap:0;padding:0;overflow:hidden}.exam-mode-nta .nta-question-card{grid-template-rows:auto minmax(0,1fr) auto auto;min-height:0;padding:0 36px 10px;border:0;border-right:1px solid #d3d3d3;border-radius:0;overflow:hidden}.exam-mode-nta .nta-question-head{min-height:74px;padding:18px 0 12px;border-bottom:1px solid #333333}.exam-mode-nta .nta-question-body{min-height:0;padding:24px 14px 18px;overflow-y:auto;scrollbar-width:thin}.exam-mode-nta .nta-question-body p{max-width:760px;font-family:Georgia,Times New Roman,serif;font-size:1.1rem;line-height:1.55}.exam-mode-nta .nta-options{grid-template-columns:repeat(4,minmax(0,1fr));align-items:start;gap:12px;margin-top:10px}.exam-mode-nta .nta-option{display:grid;grid-template-columns:18px 28px minmax(0,1fr);align-items:start;grid-gap:5px;gap:5px;min-width:0;padding:8px 4px;border:0;border-radius:0;background:#ffffff;color:#333333;font-family:Georgia,Times New Roman,serif;cursor:pointer}.exam-mode-nta .nta-option input{width:16px;height:16px;margin:2px 0 0;accent-color:#2e75ad}.exam-mode-nta .nta-option.active,.exam-mode-nta .nta-option:hover{background:#f5f8fb;box-shadow:none}.exam-mode-nta .nta-actions-bottom,.exam-mode-nta .nta-actions-top{flex-shrink:0;padding:10px 14px;background:#f4f4f4}.exam-mode-nta .nta-actions-top{grid-template-columns:repeat(4,minmax(0,auto))}.exam-mode-nta .nta-actions-bottom{min-height:54px}.exam-mode-nta .nta-sidebar{min-height:0;padding:18px 18px 22px;overflow-y:auto;border:0;border-radius:0}.exam-mode-nta .nta-status-legend{gap:8px;padding:12px 10px 14px;border:0;border-bottom:1px solid #d7d7d7}.exam-mode-nta .nta-status-row{grid-template-columns:44px 1fr;gap:8px}.exam-mode-nta .nta-chip,.exam-mode-nta .nta-qbtn{-webkit-clip-path:none;clip-path:none}.exam-mode-nta .nta-chip.answered,.exam-mode-nta .nta-chip.not-answered,.exam-mode-nta .nta-qbtn.answered,.exam-mode-nta .nta-qbtn.not-answered{-webkit-clip-path:polygon(0 0,82% 0,100% 18%,100% 82%,82% 100%,0 100%);clip-path:polygon(0 0,82% 0,100% 18%,100% 82%,82% 100%,0 100%)}.exam-mode-nta .nta-chip.answered-marked,.exam-mode-nta .nta-chip.marked,.exam-mode-nta .nta-qbtn.answered_marked,.exam-mode-nta .nta-qbtn.marked{border-radius:50%}.exam-mode-nta .nta-question-palette{grid-template-columns:repeat(8,minmax(0,1fr));gap:5px;padding-top:16px}.exam-mode-nta .nta-qbtn{min-width:0;padding:7px 0;border-radius:4px;font-size:.78rem}@media (max-width:1100px){.exam-mode-nta .nta-topbar{grid-template-columns:minmax(240px,1fr) minmax(420px,1.5fr) auto;gap:14px;padding-inline:20px}.exam-mode-nta .nta-subject-row{padding-inline:20px}.exam-mode-nta .nta-main{grid-template-columns:minmax(0,1fr) 320px}}@media (max-width:900px){.exam-mode-nta .nta-topbar{grid-template-columns:1fr auto}.exam-mode-nta .nta-candidate{grid-column:1/-1;grid-row:2;justify-self:start}.exam-mode-nta .nta-subject-row{flex-wrap:wrap}.exam-mode-nta .nta-lang-wrap{margin-left:auto}}@media (max-width:720px){.exam-mode-nta .nta-main{overflow:visible}.exam-mode-nta .nta-question-card{border-right:0}.exam-mode-nta .nta-options{grid-template-columns:1fr}.exam-mode-nta .nta-candidate{width:100%}}.exam-mode-nta .nta-status-legend{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:16px;row-gap:10px}.exam-mode-nta .nta-status-row:last-child{grid-column:1/-1}.exam-mode-nta .nta-chip.answered,.exam-mode-nta .nta-chip.not-answered,.exam-mode-nta .nta-qbtn.answered,.exam-mode-nta .nta-qbtn.not-answered{-webkit-clip-path:polygon(0 0,82% 0,100% 100%,0 100%);clip-path:polygon(0 0,82% 0,100% 100%,0 100%);border-radius:0}.exam-mode-nta .nta-qbtn.not_answered{-webkit-clip-path:polygon(0 0,82% 0,100% 100%,0 100%);clip-path:polygon(0 0,82% 0,100% 100%,0 100%);border:0;border-radius:0;background:#e84a17;color:#ffffff}.exam-mode-nta .nta-qbtn{-moz-appearance:none;appearance:none;-webkit-appearance:none;border:0;outline:none;box-shadow:none}.exam-mode-nta .nta-qbtn.active,.exam-mode-nta .nta-qbtn:focus,.exam-mode-nta .nta-qbtn:focus-visible{outline:none;box-shadow:none}.exam-mode-nta .nta-chip.answered,.exam-mode-nta .nta-chip.not-answered,.exam-mode-nta .nta-qbtn.answered,.exam-mode-nta .nta-qbtn.not-answered,.exam-mode-nta .nta-qbtn.not_answered{-webkit-clip-path:polygon(20% 0,80% 0,100% 100%,0 100%);clip-path:polygon(20% 0,80% 0,100% 100%,0 100%);-webkit-clip-path:polygon(0 80%,0 20%,100% 0,100% 100%);clip-path:polygon(0 80%,0 20%,100% 0,100% 100%)}@media (max-width:520px){.exam-mode-nta .nta-status-legend{grid-template-columns:1fr}.exam-mode-nta .nta-status-row:last-child{grid-column:auto}}.exam-mode-nta,.exam-mode-nta *{font-family:Arial,Helvetica,sans-serif!important}.leaderboard-page{max-width:none;min-height:calc(100dvh - 58px);padding:58px max(24px,calc((100vw - 1160px) / 2)) 90px;background:#0d172b!important;color:#f4f7ff}.leaderboard-page .leaderboard-badges,.leaderboard-page .leaderboard-climb-card,.leaderboard-page .leaderboard-demo-note,.leaderboard-page .leaderboard-missions,.leaderboard-page .leaderboard-subhead,.leaderboard-page .leaderboard-table-heading,.leaderboard-page .leaderboard-table-wrap,.leaderboard-page .page-head,.leaderboard-page .podium-wrap{max-width:1160px;margin-left:auto;margin-right:auto}.leaderboard-page .leaderboard-climb-copy h2,.leaderboard-page .leaderboard-subhead h2,.leaderboard-page .leaderboard-table-heading h2,.leaderboard-page .page-head h1,.leaderboard-page .podium-wrap h2{color:#f4f7ff!important}.leaderboard-page .leaderboard-climb-copy p,.leaderboard-page .leaderboard-climb-copy small,.leaderboard-page .leaderboard-reset,.leaderboard-page .muted,.leaderboard-page .page-head p:last-child{color:#9eacc2!important}.leaderboard-page .leaderboard-badge-card,.leaderboard-page .leaderboard-climb-card,.leaderboard-page .leaderboard-demo-note,.leaderboard-page .leaderboard-mission-card{border-color:#33425d;background:#15233d!important}.leaderboard-page .leaderboard-climb-stats div{border-color:#33425d;background:#1b2a45}.leaderboard-page .leaderboard-xp-track{background:#263a61}.leaderboard-page .leaderboard-xp-track span{background:#7d8fff}.leaderboard-page .leaderboard-table-wrap,.leaderboard-page .podium-wrap{border-color:#33425d;background:#0f1b31!important;box-shadow:none}.leaderboard-page .podium{min-height:350px}.leaderboard-page .podium-col{color:#f4f7ff}.leaderboard-page .podium-col small{color:#aebbd1}.leaderboard-page .podium-bar{border-color:#687bff;background:#5566dc;color:#ffffff}.leaderboard-page .podium-col.first .podium-bar{height:170px;background:#8491ff;border-color:#aab3ff}.leaderboard-page .podium-col.second .podium-bar{height:132px;background:#6476ec;border-color:#8392ff}.leaderboard-page .podium-col.third .podium-bar{height:108px;background:#4c5dc4;border-color:#7180e8}.leaderboard-page .leaderboard-table th{background:#1a2943;color:#9eacc2}.leaderboard-page .leaderboard-table td{border-color:#2a3b59;color:#f4f7ff}.leaderboard-page .leaderboard-table .leader-row:hover td{background:#1d2e4c}.leaderboard-page .leader-row.rank-1 td,.leaderboard-page .leader-row.rank-2 td,.leaderboard-page .leader-row.rank-3 td{background:#162642}.leaderboard-page .rank-badge,.leaderboard-page .reward-pill,.leaderboard-page .streak-chip{border-color:#405276;background:#1f3150;color:#c9d3e6}@media (max-width:520px){.leaderboard-page{padding:36px 14px 64px}.leaderboard-page .podium{min-height:260px}}.leaderboard-page{max-width:1160px;min-height:0;padding:46px 0 80px;background:#ffffff!important;color:#171a1f!important}.leaderboard-page .page-head{max-width:none;margin:0 0 30px}.leaderboard-page .leaderboard-climb-copy h2,.leaderboard-page .leaderboard-subhead h2,.leaderboard-page .leaderboard-table-heading h2,.leaderboard-page .page-head h1,.leaderboard-page .podium-wrap h2{color:#171a1f!important}.leaderboard-page .leaderboard-climb-copy p,.leaderboard-page .leaderboard-climb-copy small,.leaderboard-page .leaderboard-reset,.leaderboard-page .muted,.leaderboard-page .page-head p:last-child{color:#737b84!important}.leaderboard-page .leaderboard-badge-card,.leaderboard-page .leaderboard-climb-card,.leaderboard-page .leaderboard-demo-note,.leaderboard-page .leaderboard-mission-card{border-color:#e0e3e7!important;background:#ffffff!important}.leaderboard-page .leaderboard-climb-card{background:#f7f8fa!important}.leaderboard-page .leaderboard-climb-stats div{border-color:#e0e3e7;background:#ffffff}.leaderboard-page .leaderboard-badge-card small,.leaderboard-page .leaderboard-climb-stats span,.leaderboard-page .leaderboard-mission-card b,.leaderboard-page .leaderboard-mission-card p{color:#737b84!important}.leaderboard-page .leaderboard-badge-card strong,.leaderboard-page .leaderboard-climb-stats strong{color:#171a1f!important}.leaderboard-page .leaderboard-xp-track{background:#e7ebef!important}.leaderboard-page .leaderboard-xp-track span{background:#4b7cad!important}.leaderboard-page .leaderboard-table-wrap,.leaderboard-page .podium-wrap{max-width:none;border-color:#e0e3e7!important;border-radius:12px;background:#ffffff!important;box-shadow:none!important}.leaderboard-page .podium{min-height:300px}.leaderboard-page .podium-col{color:#171a1f!important}.leaderboard-page .podium-col small{color:#737b84!important}.leaderboard-page .podium-bar{border-color:#d8dde4!important;border-radius:12px 12px 6px 6px;color:#2f3440!important;background:#eceff4!important}.leaderboard-page .podium-col.first .podium-bar{height:130px;background:#f6c953!important;border-color:#edc167!important;color:#7c5a12!important}.leaderboard-page .podium-col.second .podium-bar{height:102px;background:#d0dbf7!important;border-color:#c4cee8!important;color:#4e5868!important}.leaderboard-page .podium-col.third .podium-bar{height:84px;background:#f2c7ad!important;border-color:#e0b79f!important;color:#774733!important}.leaderboard-page .leaderboard-table th{background:#f7f8fa!important;color:#737b84!important}.leaderboard-page .leaderboard-table td{border-color:#e7e9ec!important;color:#252a31!important}.leaderboard-page .leaderboard-table .leader-row:hover td{background:#f7f8fa!important}.leaderboard-page .leader-row.rank-1 td,.leaderboard-page .leader-row.rank-2 td,.leaderboard-page .leader-row.rank-3 td{background:#fbfcfe!important}.leaderboard-page .rank-badge,.leaderboard-page .reward-pill,.leaderboard-page .streak-chip{border-color:#d8dfe8!important;background:#f7f9fb!important;color:#4c5868!important}@media (max-width:960px){.leaderboard-page{width:min(1160px,95vw)}}@media (max-width:720px){.leaderboard-page{padding:34px 0 60px}}.resource-nav-menu{position:relative}.resource-nav-trigger{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:0;font:inherit;cursor:pointer}.resource-nav-chevron{flex:0 0 auto;transition:transform .16s ease}.resource-nav-chevron.is-open{transform:rotate(180deg)}.resource-nav-dropdown{position:absolute;top:calc(100% + 10px);right:0;z-index:40;display:grid;width:220px;grid-gap:2px;gap:2px;padding:6px;border:1px solid #e0e3e7;border-radius:12px;background:#ffffff;box-shadow:0 12px 30px rgba(10,12,16,.12)}.resource-nav-item{display:grid;grid-gap:3px;gap:3px;padding:10px;border-radius:8px;color:#252a31}.resource-nav-item:hover{background:#f7f8fa}.resource-nav-item strong{font-size:.86rem}.resource-nav-item small{color:#737b84;font-size:.73rem}.resource-category-page .page-head,.resources-hub-page .page-head{margin-bottom:28px}.resource-category-grid,.resources-hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:14px;gap:14px}.resource-category-card,.resources-hub-card{display:grid;align-content:start;grid-gap:10px;gap:10px;min-height:210px;padding:22px;border:1px solid #e0e3e7;border-radius:14px;background:#ffffff;color:#171a1f;transition:border-color .14s ease,transform .14s ease,box-shadow .14s ease}.resource-category-card:hover,.resources-hub-card:hover{border-color:#bac6d3;box-shadow:0 10px 24px rgba(30,42,58,.06);transform:translateY(-2px)}.resources-hub-index{color:#397db5;font-size:.78rem;font-weight:800;letter-spacing:.08em}.resource-category-card h2,.resources-hub-card h2{margin:0;font-size:1.25rem}.resource-category-card p,.resources-hub-card p{margin:0;color:#737b84;font-size:.88rem;line-height:1.55}.resource-category-action,.resources-hub-action{align-self:end;margin-top:auto;color:#397db5;font-size:.82rem;font-weight:700}.resource-back-link{display:inline-flex;margin-bottom:20px;color:#687383;font-size:.84rem;font-weight:700}.resource-back-link:hover{color:#171a1f}.resource-category-card .subject-tag{width:-moz-fit-content;width:fit-content}.resource-category-empty{grid-column:1/-1;min-height:140px}@media (max-width:960px){.resource-category-grid,.resources-hub-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:720px){.resource-nav-dropdown{right:auto;left:0}.resource-category-grid,.resources-hub-grid{grid-template-columns:1fr}}@media (min-width:961px){.leaderboard-page>.leaderboard-sidebar{grid-column:2;grid-row:3/span 2;width:100%;margin:0;display:grid;align-content:start;grid-gap:26px;gap:26px;position:-webkit-sticky;position:sticky;top:78px}.leaderboard-sidebar .leaderboard-badges,.leaderboard-sidebar .leaderboard-missions{width:100%;max-width:none;margin:0}.leaderboard-sidebar .leaderboard-subhead{max-width:none;margin:0 0 14px;align-items:flex-start;flex-direction:column}.leaderboard-sidebar .leaderboard-badge-grid,.leaderboard-sidebar .leaderboard-mission-grid{grid-template-columns:1fr}.leaderboard-page>.leaderboard-table-heading,.leaderboard-page>.leaderboard-table-wrap,.leaderboard-page>.podium-wrap{grid-column:1;width:100%;margin-left:0;margin-right:0}.leaderboard-page>.podium-wrap{grid-row:3}.leaderboard-page>.leaderboard-table-heading{grid-row:4}.leaderboard-page>.leaderboard-table-wrap{grid-row:5}}@media (max-width:960px){.leaderboard-page>.leaderboard-sidebar{display:grid;grid-gap:26px;gap:26px}}@media (min-width:961px){.leaderboard-page>.leaderboard-main-column{grid-column:1;grid-row:3;width:100%;min-width:0;display:grid;grid-gap:26px;gap:26px}.leaderboard-main-column .leaderboard-table-heading,.leaderboard-main-column .leaderboard-table-wrap,.leaderboard-main-column .podium-wrap{width:100%;max-width:none;margin:0}.leaderboard-page>.leaderboard-missions{grid-column:2;grid-row:3;margin:0}.leaderboard-page>.leaderboard-badges{grid-column:2;grid-row:4;margin:0}.leaderboard-page>.podium-wrap{grid-column:1;grid-row:3}.leaderboard-page>.leaderboard-table-heading{grid-column:1;grid-row:4}.leaderboard-page>.leaderboard-table-wrap{grid-column:1;grid-row:5}.leaderboard-page .leaderboard-badges .leaderboard-badge-grid{grid-template-columns:1fr}}html{font-size:16px}body,button,input,select,textarea{font-family:var(--font-sans),"Helvetica Neue",Arial,sans-serif}body{letter-spacing:-.012em;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5{font-family:var(--font-sans),"Helvetica Neue",Arial,sans-serif;font-weight:650;letter-spacing:-.05em}h1{line-height:1.01}h2{line-height:1.08}.dashboard-page-header h1,.landing-copy h1,.page-head h1,.pricing-head h1,.result-screen-header h1{text-wrap:balance}.landing-copy h1,.pricing-head h1{font-weight:650;letter-spacing:-.045em}.dashboard-page-header p,.landing-copy p:not(.eyebrow),.page-head p,.pricing-head p{letter-spacing:-.016em;line-height:1.64}.auth-kicker,.eyebrow,.pricing-head>span,.tests-section-kicker{font-family:var(--font-sans),"Helvetica Neue",Arial,sans-serif;font-weight:700;letter-spacing:.095em}.btn,.nav-link,.nav-signin{font-family:var(--font-sans),"Helvetica Neue",Arial,sans-serif;font-weight:650;letter-spacing:-.025em}.exam-mode-nta,.exam-mode-nta button,.exam-mode-nta input,.exam-mode-nta select,.exam-mode-nta textarea{font-family:Arial,Helvetica,sans-serif!important;letter-spacing:0!important}.account-dashboard-head{display:flex;justify-content:space-between;align-items:end;gap:24px}.demo-kicker{color:#5161b1;font-size:.76rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.access-loading{min-height:40vh}.access-gate{position:relative;min-height:calc(100dvh - 80px)}.access-locked-content{min-height:calc(100dvh - 80px);filter:blur(7px);opacity:.7;pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.access-lock-overlay{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:24px;background:rgba(255,255,255,.2)}.access-lock-panel{width:min(460px,100%);padding:clamp(26px,5vw,38px);border:1px solid #dce1eb;border-radius:18px;background:rgba(255,255,255,.98);box-shadow:0 18px 55px rgba(32,41,66,.17);text-align:center}.access-lock-panel h1{margin:10px 0 12px;font-size:clamp(1.9rem,4vw,2.6rem)}.access-lock-panel p{margin:0 0 23px;color:#677081}.access-lock-panel small{display:block;margin-top:13px;color:#727b87}.account-dashboard{padding:54px 0 90px}.account-dashboard-head{margin-bottom:30px}.account-dashboard h1{font-size:clamp(2rem,4vw,3.2rem)}.account-metrics{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:13px;gap:13px}.account-metrics article,.account-panel{padding:22px;border:1px solid #e1e5ec;border-radius:15px;background:#fff}.account-metrics article{display:grid;grid-gap:7px;gap:7px}.account-metrics article>span,.account-metrics small{color:#667081;font-size:.78rem}.account-metrics strong{font-size:1.6rem;letter-spacing:-.05em}.account-dashboard-lower{display:grid;grid-template-columns:1.55fr 1fr;grid-gap:15px;gap:15px;margin-top:17px}.account-panel h2{margin:0 0 10px;font-size:1.25rem}.account-panel-heading{display:flex;justify-content:space-between;align-items:center}.account-panel-heading a{color:#5261b8;font-size:.83rem;font-weight:700}.account-attempts>div{display:grid;grid-template-columns:1fr auto auto;grid-gap:16px;gap:16px;padding:13px 0;border-top:1px solid #ecedf1;font-size:.85rem}.account-attempts small{color:#748090}.account-plan-panel .btn{margin-top:20px}.tests-plan-note{display:flex;justify-content:space-between;gap:12px;margin:0 0 18px;padding:12px 15px;border:1px solid #e2e6ef;border-radius:10px;color:#414a5b;font-size:.85rem;font-weight:700}.tests-plan-note a{color:#4e5bb8}.test-unscored-note{margin:8px 0 0;color:#7a5d28;font-size:.8rem}.account-advanced{margin-top:22px;padding:24px;border:1px solid #dfe4ed;border-radius:16px;background:#f8f9fd}.account-advanced h2{margin:7px 0 18px;font-size:1.5rem}.account-advanced-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:12px;gap:12px}.account-advanced-grid article{display:grid;grid-gap:8px;gap:8px;padding:18px;border-radius:11px;background:#fff}.account-advanced-grid small,.account-advanced-grid span{color:#667081;font-size:.79rem}.account-advanced-grid strong{font-size:1.8rem}@media (max-width:700px){.account-dashboard-lower{grid-template-columns:1fr}.account-dashboard-head{align-items:start;flex-direction:column}.account-metrics{grid-template-columns:repeat(2,1fr)}.account-attempts>div{grid-template-columns:1fr auto}.account-attempts small{grid-column:1/-1}.account-advanced-grid{grid-template-columns:1fr}}