:root{color-scheme:light;--bg: #faf6ee;--bg-elev: #ffffff;--bg-elev-2: #f0e8d8;--border: #1a1714;--text: #1a1714;--text-dim: #6e6357;--accent: #2c5b5b;--accent-text: #ffffff;--good: #3a7d44;--bad: #b83a3a;--warn: #c97817;--radius: 10px;--border-w: 1.5px;--border-w-card: 2px;--tap: 44px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:16px;line-height:1.45}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent}body{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}a{color:var(--accent);text-decoration:none;font-weight:600}button{font:inherit;color:inherit;background:var(--bg-elev);border:var(--border-w) solid var(--border);border-radius:var(--radius);padding:12px 16px;min-height:var(--tap);cursor:pointer;touch-action:manipulation;font-weight:500}button:disabled{opacity:.4;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:600}button.danger{border-color:var(--bad);color:var(--bad)}button.ghost{border-color:transparent;background:transparent}button.full{width:100%}input[type=text],input[type=number],textarea,select{font:inherit;color:inherit;background:var(--bg-elev);border:var(--border-w) solid var(--border);border-radius:var(--radius);padding:12px 14px;min-height:var(--tap);width:100%}textarea{min-height:96px;resize:vertical}.app{max-width:720px;margin:0 auto;padding:16px 16px 96px}.app-header{display:flex;align-items:center;justify-content:space-between;padding:8px 16px 16px;max-width:720px;margin:0 auto}.app-header h1{font-size:18px;margin:0;font-weight:700;letter-spacing:-.01em}.app-header .back{font-size:14px;color:var(--text-dim)}.card{background:var(--bg-elev);border:var(--border-w-card) solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px}.card h2{font-size:16px;margin:0 0 8px;font-weight:700}.card .meta{color:var(--text-dim);font-size:13px}.stack{display:flex;flex-direction:column;gap:12px}.row{display:flex;gap:8px;flex-wrap:wrap}.row.between{justify-content:space-between;align-items:center}.muted{color:var(--text-dim)}.small{font-size:13px}.center{text-align:center}.issue{border-left:4px solid var(--border);padding:10px 12px;margin-bottom:8px;background:var(--bg-elev-2);border-radius:6px;font-size:14px}.issue.error{border-left-color:var(--bad)}.issue.warning{border-left-color:var(--warn)}.issue .path{color:var(--text-dim);font-size:12px;font-family:ui-monospace,Menlo,monospace}.answer-option{display:flex;align-items:center;gap:12px;border:var(--border-w) solid var(--border);border-radius:var(--radius);padding:12px 14px;background:var(--bg-elev);cursor:pointer;-webkit-user-select:none;user-select:none;text-align:left;width:100%;min-height:var(--tap);font-weight:500}.answer-option.selected{border-color:var(--accent);background:#2c5b5b14}.answer-option.correct{border-color:var(--good);background:#3a7d441a}.answer-option.incorrect{border-color:var(--bad);background:#b83a3a14}.answer-option .marker{width:28px;height:28px;border-radius:50%;border:var(--border-w) solid var(--border);background:var(--bg);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;transition:background 80ms ease,color 80ms ease,border-color 80ms ease}.answer-option.selected .marker{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}.answer-option.correct .marker{background:var(--good);border-color:var(--good);color:#fff}.answer-option.incorrect .marker{background:var(--bad);border-color:var(--bad);color:#fff}.feedback{border-radius:var(--radius);padding:14px;margin-top:12px;border:var(--border-w-card) solid var(--border);background:var(--bg-elev-2)}.feedback.correct{border-color:var(--good)}.feedback.incorrect{border-color:var(--bad)}.feedback h3{margin:0 0 6px;font-size:15px;font-weight:700}.case-card{background:var(--bg-elev-2);border:var(--border-w) solid var(--border);border-radius:var(--radius);padding:14px;margin-bottom:12px;white-space:pre-wrap;max-height:40vh;overflow:auto;font-size:15px}.progress{display:flex;gap:4px;margin-bottom:12px}.progress span{flex:1;height:4px;background:#1a171426;border-radius:2px}.progress span.done{background:var(--accent)}.tag{display:inline-block;font-size:12px;color:var(--text-dim);border:1px solid var(--border);border-radius:999px;padding:2px 8px;margin-right:6px;margin-top:6px}.empty{text-align:center;padding:40px 16px;color:var(--text-dim)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a171473;z-index:50;display:flex;align-items:flex-start;justify-content:center;overflow-y:auto;padding:24px 12px}.modal{background:var(--bg-elev);border:var(--border-w-card) solid var(--border);border-radius:var(--radius);padding:16px;width:100%;max-width:560px;margin-top:env(safe-area-inset-top)}.modal h2{font-size:16px;margin:0 0 12px;font-weight:700}.modal label{font-size:13px;color:var(--text-dim);display:block;margin-bottom:4px}.modal .answer-edit-row{display:flex;gap:8px;align-items:flex-start}.modal .answer-edit-row>textarea,.modal .answer-edit-row>input[type=text]{flex:1}.modal .answer-edit-row .correct-toggle{flex-shrink:0;min-height:var(--tap);padding:0 12px;border-radius:var(--radius);border:var(--border-w) solid var(--border);background:var(--bg-elev-2);cursor:pointer;font-size:13px;color:var(--text-dim);font-weight:600}.modal .answer-edit-row .correct-toggle.active{border-color:var(--good);color:var(--good);background:#3a7d441f}.modal .answer-edit-row .remove{flex-shrink:0;min-height:var(--tap);padding:0 10px;border-radius:var(--radius);border:var(--border-w) solid var(--border);background:transparent;cursor:pointer;color:var(--text-dim)}.feed-container{position:fixed;top:0;right:0;bottom:0;left:0;height:100dvh;overflow-y:scroll;scroll-snap-type:y mandatory;background:var(--bg);-webkit-overflow-scrolling:touch;z-index:1}.feed-card{height:100dvh;scroll-snap-align:start;overflow-y:auto;padding:calc(env(safe-area-inset-top) + 60px) 12px calc(env(safe-area-inset-bottom) + 16px);box-sizing:border-box;display:flex;justify-content:center}.feed-card-inner{width:100%;max-width:560px;display:flex;flex-direction:column;gap:12px}.feed-empty{align-items:center}.feed-meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.feed-type-chip{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;background:var(--bg-elev);border:1.5px solid var(--border);border-radius:4px;padding:3px 8px}.feed-type-chip.type-single-choice{background:#2c5b5b1f;color:var(--accent);border-color:var(--accent)}.feed-type-chip.type-multiple-choice{background:#c978171f;color:var(--warn);border-color:var(--warn)}.feed-type-chip.type-manual-input{background:#b83a3a1a;color:var(--bad);border-color:var(--bad)}.feed-menu-btn{position:fixed;top:calc(env(safe-area-inset-top) + 8px);right:8px;z-index:10;padding:8px 14px;background:var(--bg-elev);border:var(--border-w-card) solid var(--border);border-radius:6px;color:var(--text);text-decoration:none;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.folder-section-header{display:flex;justify-content:space-between;align-items:center;padding:8px 4px 4px;font-size:13px;text-transform:uppercase;letter-spacing:.5px;color:var(--text);font-weight:700}.folder-section-header .folder-dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;vertical-align:middle;border:1.5px solid var(--border)}.folder-section-header.folder-important .folder-dot{background:var(--bad)}.folder-section-header.folder-medium .folder-dot{background:var(--warn)}.folder-section-header.folder-low .folder-dot{background:var(--accent)}.folder-section-header.folder-later .folder-dot{background:var(--text-dim)}.read-aloud-btn{padding:6px 8px;min-height:0;display:inline-flex;align-items:center;justify-content:center;color:var(--text-dim);background:transparent;border-color:transparent}.read-aloud-btn.active{color:var(--accent)}