:root{--primary:#215c50;--primary-dark:#174439;--bg:#f5f6f1;--surface:#fff;--ink:#172c29;--muted:#586a65;--border:#d9e2dc;--tint:#eaf1eb}
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24px}.intro-copy{max-width:760px;margin-bottom:36px}.badge-pill,.eyebrow{display:block;color:var(--primary);font-size:.76rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em;margin:0 0 12px}.badge-pill{display:inline-block;background:var(--tint);padding:6px 12px;border-radius:6px}h1,h2,p{margin-top:0}h1{font-size:clamp(2.2rem,4.5vw,3.7rem);line-height:1.12;letter-spacing:-.045em;margin-bottom:20px}h2{font-size:1.45rem;line-height:1.25;letter-spacing:-.02em;margin-bottom:10px}.intro-copy>p{font-size:1.15rem;color:var(--muted);max-width:650px}.setup-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:32px}.intro-card{padding:32px;border:1px solid var(--border);background:var(--surface);border-radius:20px;box-shadow:0 12px 32px #19382d08}.muted{color:var(--muted)}.subject-selector{display:grid;gap:12px;margin:24px 0}.subject-btn{display:flex;align-items:center;gap:16px;text-align:left;width:100%;padding:16px;border:1px solid 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var(--primary)}.btn-primary{background:var(--primary);color:white}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{color:var(--primary);background:var(--surface)}.btn-secondary:hover{background:var(--tint)}#startBtn{width:100%;justify-content:space-between}.start-note{margin:12px 0 0;font-size:.8rem;color:var(--muted);text-align:center}.session-guide{padding:28px 20px}.session-guide h2{font-size:1.9rem}.session-guide ol{padding-left:24px;margin:28px 0}.session-guide li{padding-left:8px;margin-bottom:22px}.session-guide li::marker{color:var(--primary);font-weight:600}.session-guide li strong,.session-guide li span{display:block}.session-guide li span{margin-top:4px;color:var(--muted);font-size:.95rem}.guide-note{border-top:1px solid var(--border);padding-top:20px;font-size:.83rem;color:var(--muted)}.loading-state{text-align:center;max-width:700px;margin:80px auto}.loading-state h1{font-size:2rem}.loader{display:inline-block;width:44px;height:44px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:28px}.error-message{padding:14px;margin-bottom:18px;background:#fff0ed;color:#963623;border:1px solid #edc6bc;border-radius:8px}.test-heading{display:flex;justify-content:space-between;align-items:center;gap:20px}.test-heading h1{font-size:2.5rem}.text-link{font-size:.9rem}.practice-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 24px;background:var(--tint);border:1px solid var(--border);border-radius:12px;scroll-margin-top:24px}.practice-toolbar .eyebrow{margin-bottom:0;font-size:.65rem}.timer{font-family:'JetBrains Mono',monospace;font-size:1.5rem}.toolbar-actions{display:flex;flex-wrap:wrap;gap:10px}.paper-note{color:var(--muted);font-size:.9rem;margin:18px 0}.question-paper{background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden}.paper-header{display:flex;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--border);font-weight:600}.paper-header span{font-size:.85rem;color:var(--muted);font-weight:400}.paper-body{padding:32px 40px;font-size:1.08rem;overflow-wrap:anywhere}.markdown-content h1,.markdown-content h2{font-size:1.5rem;line-height:1.3;margin:28px 0 16px}.markdown-content h3{font-size:1.2rem}.markdown-content pre{overflow-x:auto;white-space:pre-wrap}.markdown-content table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}.markdown-content td,.markdown-content th{border:1px solid var(--border);padding:8px}.markdown-content img{max-width:100%}.paper-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:24px}.paper-footer p{margin:0;color:var(--muted);font-size:.9rem}.completion-panel,.replace-prompt{padding:24px;border:1px solid var(--border);border-radius:12px;margin:20px 0;background:#eef4e4}.completion-panel p{max-width:760px}.replace-prompt .btn-secondary{margin:8px}.paper-body:empty{display:none}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:760px){nav{padding:16px 20px;flex-wrap:wrap}.nav-actions{gap:16px}.container{margin-top:32px;padding:0 18px}.setup-grid{grid-template-columns:1fr;gap:12px}.intro-card{padding:24px}.session-guide{padding:24px 8px}.test-heading{align-items:flex-start;flex-direction:column;gap:0;margin-bottom:18px}.test-heading h1{font-size:2rem}.practice-toolbar,.paper-footer{align-items:stretch;flex-direction:column}.paper-header{flex-direction:column;gap:2px;padding:16px 20px}.paper-body{padding:20px}.toolbar-actions>*{flex:1}.loading-state{margin:48px auto}.subject-btn{gap:10px}.subject-symbol{width:36px;height:36px}.intro-copy>p{font-size:1.05rem}}@media(prefers-reduced-motion:reduce){.loader{animation:none}}