:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#111318;color:#f5f7fb;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;background:#111318}button{font:inherit}.landing-shell,.questionnaire-shell,.generating-shell,.plan-shell{width:min(1180px,calc(100vw - 48px));margin:0 auto}.landing-shell{padding:72px 0}.landing-header{margin-bottom:40px}.wordmark{color:#f2c14e;font-size:22px;font-weight:800;letter-spacing:0;margin-bottom:14px}h1,h2,h3,p{margin-top:0}.landing-header h1{max-width:720px;font-size:54px;line-height:1.04;margin-bottom:0}.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(320px,1fr));gap:24px}.mode-grid.single-mode{grid-template-columns:minmax(420px,620px)}.mode-card,.question-card,.questionnaire-card,.generating-card,.plan-card,.modal{border:1px solid #2a2f3a;border-radius:8px;background:#181b22}.mode-card{padding:28px}.mode-card h2{font-size:30px;margin-bottom:10px}.mode-meta,.marking,.muted,.topic-name,.marking-line{color:#aeb6c5}.primary-button,.secondary-button,.danger-button{min-height:42px;border:0;border-radius:6px;padding:0 18px;color:#101217;font-weight:800;cursor:pointer}.primary-button{background:#f2c14e}.secondary-button{background:#dce3ef}.danger-button{background:#ff6b6b}button:disabled{cursor:not-allowed;opacity:.58}.warning-box{margin-top:24px;border:1px solid #ff6b6b;border-radius:8px;padding:18px 20px;background:#35191c;color:#ffd1d1;font-weight:800}.setup-box{display:grid;gap:8px;margin-top:24px;border:1px solid #f2c14e;border-radius:8px;padding:18px 20px;background:#2b2412;color:#ffe7a8}.setup-box code{color:#fff;font-weight:800}.test-shell{min-height:100vh;min-width:1120px}.test-topbar{position:sticky;top:0;z-index:5;height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 28px;border-bottom:1px solid #2a2f3a;background:#111318}.timer{font-size:30px;font-weight:900;color:#fff}.timer.warning{color:#ffd166}.timer.danger{color:#ff6b6b}.test-label{font-weight:900;color:#dce3ef}.test-topbar .danger-button{justify-self:end}.test-layout{display:grid;grid-template-columns:minmax(720px,1fr) 320px;gap:28px;padding:28px}.test-main{display:grid;align-content:start;gap:18px}.question-card{padding:30px}.question-kicker{color:#f2c14e;font-weight:900;margin-bottom:14px}.question-meta{display:flex;align-items:center;gap:12px;margin-bottom:20px}.subject-badge{border-radius:999px;padding:6px 11px;font-size:13px;font-weight:900;color:#06111f}.subject-badge.physics{background:#7cc7ff}.subject-badge.chemistry{background:#84e29b}.subject-badge.biology{background:#67d7c4}.question-card h2{font-size:28px;line-height:1.28;margin-bottom:24px}.answer-grid{display:grid;gap:12px}.option-card{display:grid;grid-template-columns:44px 1fr;align-items:center;gap:12px;width:100%;min-height:66px;border:1px solid #303746;border-radius:8px;padding:14px;background:#20242d;color:#f5f7fb;text-align:left;cursor:pointer}.option-card.selected{border-color:#f2c14e;background:#342d1b}.option-label{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#303746;font-weight:900}.marking-line{margin-top:18px;font-weight:800}.action-row{display:flex;gap:12px}.question-nav{position:sticky;top:100px;align-self:start;max-height:calc(100vh - 128px);overflow:auto;border-left:1px solid #2a2f3a;padding-left:24px}.nav-section+.nav-section{margin-top:24px}.nav-divider{color:#aeb6c5;font-size:13px;font-weight:900;text-transform:uppercase;margin-bottom:10px}.pill-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.question-pill{display:grid;place-items:center;height:34px;border-radius:6px;background:#303746;color:#e8edf7;font-size:13px;font-weight:900}.question-pill.active{background:#2f80ed}.question-pill.answered{background:#f2c14e;color:#111318}.question-pill.skipped{background:#090a0d;color:#7d8798;border:1px solid #303746}.question-pill.correct{background:#35d07f;color:#07140d}.question-pill.wrong{background:#ff6b6b;color:#22090b}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10;display:grid;place-items:center;background:#000000a6}.modal{width:460px;padding:26px}.modal h2{margin-bottom:12px}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.error-text{color:#ff9a9a;font-weight:800}.questionnaire-shell,.generating-shell{display:grid;min-height:100vh;place-items:center}.questionnaire-card,.generating-card{width:760px;padding:34px}.questionnaire-card h1{font-size:34px;line-height:1.18;margin-bottom:24px}.questionnaire-options .option-card{min-height:74px}.spinner{width:54px;height:54px;border:6px solid #303746;border-top-color:#f2c14e;border-radius:50%;animation:spin .8s linear infinite;margin-bottom:22px}@keyframes spin{to{transform:rotate(360deg)}}.raw-response{max-height:360px;overflow:auto;white-space:pre-wrap;color:#f5f7fb;background:#0c0e12;border-radius:6px;padding:16px}.plan-shell{padding:34px 0 80px;display:grid;gap:18px}.plan-card{padding:26px}.rank-card{border-width:2px}.rank-green{border-color:#35d07f}.rank-yellow{border-color:#f2c14e}.rank-red{border-color:#ff6b6b}.rank-card h1{font-size:42px;margin-bottom:8px}.score-large{color:#dce3ef;font-size:24px;font-weight:900}.trajectory{margin-top:22px}.trajectory hr{border:0;border-top:1px solid #3a4252;margin:14px 0}.rank-anchor{margin-top:18px;font-weight:900}.diagnosis-card{border-width:2px}.diagnosis-card.overconfidence{border-color:#ff9f43}.diagnosis-card.concept_gap{border-color:#7cc7ff}.diagnosis-card.time_pressure{border-color:#ff6b6b}.diagnosis-card.silly_mistakes{border-color:#f2c14e}.diagnosis-card h2{font-size:28px}.diagnosis-line{font-size:24px;font-weight:900}.mismatch{color:#aeb6c5;font-style:italic}.stat-pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.stat-pill-row span,.mistake-badge{border-radius:999px;background:#303746;color:#f5f7fb;padding:8px 11px;font-size:13px;font-weight:900}.one-thing-card,.exam-rule-card{border-color:#f2c14e;background:#221f18}.label{color:#f2c14e;font-weight:900;text-transform:uppercase;margin-bottom:10px}.one-thing-card p,.exam-rule-card p{font-size:26px;line-height:1.28;font-weight:900;margin-bottom:0}.topic-list{display:grid;gap:12px}.topic-item{display:grid;grid-template-columns:1.4fr 180px 2fr;align-items:center;gap:16px;border-top:1px solid #303746;padding-top:14px}.topic-item h3,.topic-item p{margin-bottom:0}.subject-priority{margin-top:18px;font-weight:900}.sleep-card p{font-size:22px;font-weight:900;margin-bottom:0}.score-breakdown p{margin-bottom:8px;color:#dce3ef}.plan-actions{display:flex;gap:12px;justify-content:flex-end}@media print{:root,body{background:#fff;color:#000}body{min-width:0}.plan-shell{width:100%;padding:0}.plan-card{break-inside:avoid;background:#fff;border-color:#000;color:#000}.plan-actions{display:none}.score-large,.mismatch,.score-breakdown p{color:#000}}@media (max-width: 760px){.landing-shell{padding:56px 0}.landing-header h1{font-size:48px}.mode-grid{grid-template-columns:1fr}}