:root{--bg:#f4f5f7;--surface:#fff;--surface-2:#f2f4f6;--surface-3:#e9ecef;--text:#191f28;--text-2:#4e5968;--text-3:#8b95a1;--line:#e5e8eb;--primary:#3b5bfd;--primary-press:#2b48e0;--primary-weak:#edf1ff;--danger:#f04452;--danger-press:#d93442;--danger-weak:#fff0f1;--success:#0ca678;--success-press:#099268;--success-weak:#e6fcf5;--shadow-sm:0 1px 2px #0f172a0a, 0 4px 14px #0f172a0d;--shadow-md:0 8px 30px #0f172a14;--shadow-lg:0 -8px 40px #0f172a24;--radius:20px;--radius-sm:14px;--maxw:560px;--gutter:20px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#101216;--surface:#1b1e24;--surface-2:#23272e;--surface-3:#2c3139;--text:#f2f4f6;--text-2:#b0b8c1;--text-3:#7e8794;--line:#2c3139;--primary:#6b84ff;--primary-press:#5670f5;--primary-weak:#1f2747;--danger:#ff6b76;--danger-press:#f25560;--danger-weak:#3a1d22;--success:#38d9a9;--success-press:#20c997;--success-weak:#10302a;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 8px 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var(--primary));border-radius:999px;height:100%}.ocr-quota{background:var(--surface);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);flex-direction:column;gap:8px;padding:14px 16px;display:flex}.ocr-quota.loading{color:var(--text-3);font-size:14px}.ocr-quota-row{color:var(--text-2);justify-content:space-between;align-items:baseline;font-size:14px;font-weight:600;display:flex}.ocr-quota-row strong{color:var(--text);font-variant-numeric:tabular-nums;font-size:15px}.ocr-quota-row strong>span{color:var(--primary);font-size:20px;font-weight:800;display:inline-block}.ocr-quota-bar{background:var(--surface-3);border-radius:999px;height:6px;overflow:hidden}.ocr-quota-fill{background:var(--primary);border-radius:999px;height:100%}.ocr-quota-desc{color:var(--text-3);font-size:13px}.ocr-quota.is-low .ocr-quota-row strong>span,.ocr-quota.is-empty .ocr-quota-row strong>span{color:var(--danger)}.ocr-quota.is-low .ocr-quota-fill,.ocr-quota.is-empty 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.cal-num,.cal-day.selected .cal-count{color:#fff}.mode-list{flex-direction:column;gap:10px;padding-bottom:4px;display:flex}.mode-card{border-radius:var(--radius);text-align:left;border:1.5px solid var(--line);background:var(--surface);width:100%;color:var(--text-3);align-items:center;gap:14px;padding:18px 16px;transition:border-color .15s,background .15s;display:flex}.mode-card:hover{border-color:var(--primary);background:var(--primary-weak)}.mode-card.last{border-color:color-mix(in srgb, var(--primary) 50%, var(--line))}.mode-emoji{background:var(--surface-2);border-radius:14px;flex:none;place-items:center;width:46px;height:46px;font-size:24px;display:grid}.mode-meta{flex-direction:column;flex:1;gap:2px;display:flex}.mode-meta strong{color:var(--text);align-items:center;gap:6px;font-size:16px;display:flex}.mode-meta>span{font-size:13px}.mode-badge{background:var(--primary-weak);color:var(--primary);border-radius:999px;padding:2px 8px;font-size:11px;font-weight:700}.mode-pill{background:var(--surface-3);color:var(--text-2);border-radius:999px;padding:4px 10px;font-size:13px;font-weight:700}.quiz-bar{grid-template-columns:auto 1fr auto;gap:12px}.quiz-count{color:var(--text-2);font-variant-numeric:tabular-nums;text-align:right;min-width:44px;padding-right:8px;font-size:14px;font-weight:700}.quiz-stage{flex-direction:column;gap:16px;padding-top:12px;display:flex}.q-badge{background:var(--primary-weak);color:var(--primary);border-radius:999px;align-self:flex-start;padding:4px 12px;font-size:14px;font-weight:800}.quiz-question{letter-spacing:-.02em;white-space:pre-wrap;font-size:22px;font-weight:700;line-height:1.55}.hint-chip{background:var(--surface-3);color:var(--text-2);border-radius:999px;align-self:flex-start;padding:6px 12px;font-size:13px;font-weight:600}.answer-field{background:var(--surface);min-height:120px;box-shadow:var(--shadow-sm);font-size:17px}.answer-field:disabled{opacity:1}.answer-field.is-ok{border-color:var(--success);background:var(--success-weak)}.answer-field.is-no{border-color:var(--danger);background:var(--danger-weak)}.feedback{z-index:30;box-shadow:var(--shadow-lg);padding:22px var(--gutter) calc(18px + env(safe-area-inset-bottom));border-radius:24px 24px 0 0;position:fixed;bottom:0;left:0;right:0}.feedback.ok{background:var(--success-weak);color:var(--success)}.feedback.no{background:var(--danger-weak);color:var(--danger)}.feedback-inner{max-width:calc(var(--maxw) - 2 * var(--gutter));flex-direction:column;gap:14px;margin:0 auto;display:flex}.feedback-head{align-items:center;gap:10px;font-size:20px;font-weight:800;display:flex}.feedback-icon{color:#fff;border-radius:50%;place-items:center;width:34px;height:34px;display:grid}.feedback.ok .feedback-icon{background:var(--success)}.feedback.no .feedback-icon{background:var(--danger)}.feedback-body{color:var(--text);flex-direction:column;gap:10px;display:flex}.feedback-body .chip-solid,.chip-plain{background:var(--surface);color:var(--text)}.chip-ok{background:var(--success-weak);color:var(--success);box-shadow:inset 0 0 0 1.5px color-mix(in srgb, var(--success) 40%, transparent)}.chip-miss{background:var(--surface);color:var(--danger);box-shadow:inset 0 0 0 1.5px var(--danger)}.feedback.no .chip-ok{background:var(--surface)}.score-pill{background:var(--surface);color:var(--danger);border-radius:999px;margin-left:auto;padding:5px 12px;font-size:13px;font-weight:800}.feedback-line{color:var(--text-2);font-size:14px}.feedback-line b{color:var(--danger);font-weight:800}.mine{color:var(--text-2);white-space:pre-wrap;font-size:15px}.result-wrap{flex-direction:column;align-items:center;gap:20px;padding-top:6vh;display:flex;position:relative}.ring{width:150px;height:150px;position:relative}.ring circle{fill:none;stroke-width:12px}.ring-track{stroke:var(--surface-3)}.ring-fill{stroke:var(--primary);stroke-linecap:round}.ring-label{justify-content:center;align-items:baseline;padding-top:52px;display:flex;position:absolute;inset:0}.ring-label strong{font-variant-numeric:tabular-nums;letter-spacing:-.03em;font-size:40px;font-weight:800}.ring-label span{color:var(--text-3);margin-left:2px;font-size:18px;font-weight:700}.result-stats{grid-template-columns:1fr 1fr;gap:10px;width:100%;display:grid}.confetti{pointer-events:none;z-index:5;width:0;height:0;position:absolute;top:80px;left:50%}.confetti span{border-radius:2px;position:absolute}.sheet-root{z-index:100;position:fixed;inset:0}.scrim{background:#00000073;position:absolute;inset:0}.sheet{max-width:var(--maxw);background:var(--surface);max-height:92dvh;padding:0 var(--gutter) calc(20px + env(safe-area-inset-bottom));box-shadow:var(--shadow-lg);border-radius:26px 26px 0 0;margin:0 auto;position:absolute;bottom:0;left:0;right:0;overflow-y:auto}.sheet-handle-area{cursor:grab;touch-action:none;place-items:center;height:28px;display:grid}.sheet-handle{background:var(--surface-3);border-radius:999px;width:40px;height:5px}.sheet-title{letter-spacing:-.02em;margin:6px 0 16px;font-size:20px;font-weight:800}.sheet-msg{color:var(--text-2);white-space:pre-wrap;-webkit-line-clamp:4;-webkit-box-orient:vertical;margin-bottom:20px;display:-webkit-box;overflow:hidden}.sheet-actions{grid-template-columns:1fr 1fr;gap:8px;display:grid}.toast-layer{top:calc(12px + env(safe-area-inset-top));z-index:200;pointer-events:none;justify-content:center;padding:0 16px;display:flex;position:fixed;left:0;right:0}.toast{color:#fff;box-shadow:var(--shadow-md);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#191f28eb;border-radius:14px;padding:12px 18px;font-size:15px;font-weight:600}@media (width>=600px){.display{font-size:32px}}