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.stat-l{color:var(--text-dim);font-size:.8rem;margin-top:2px}.heatmap-wrap{background:var(--bg-card);border-radius:var(--radius);padding:16px}.heatmap{display:flex;gap:3px;overflow-x:auto;scrollbar-width:none;padding-bottom:4px}.heatmap::-webkit-scrollbar{display:none}.hm-col{display:flex;flex-direction:column;gap:3px}.hm-cell{width:14px;height:14px;border-radius:3px;background:var(--bg-card-2);flex-shrink:0}.hm-cell.l0{background:var(--bg-card-2)}.hm-cell.l1{background:#0478574d}.hm-cell.l2{background:#04785799}.hm-cell.l3{background:var(--accent-2)}.hm-cell.future{background:transparent}.heatmap-legend{display:flex;align-items:center;gap:5px;justify-content:flex-end;margin-top:12px;color:var(--text-dim);font-size:.72rem}.heatmap-legend .hm-cell{width:12px;height:12px}.heatmap-sub{color:var(--text-dim);font-size:.82rem;margin-top:10px}.reminder-card{background:var(--bg-card);border-radius:var(--radius);padding:16px}.rem-toggle{display:flex;align-items:center;justify-content:space-between;font-weight:600}.rem-toggle input{width:22px;height:22px;accent-color:var(--accent)}.rem-row{display:flex;align-items:center;gap:10px;margin-top:14px}.rem-row input[type=time]{background:var(--bg-card-2);border:none;border-radius:10px;padding:8px 12px;color:var(--text);font-size:1rem}.rem-note{color:var(--text-dim);font-size:.82rem;margin-top:12px;line-height:1.4}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a244073;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;padding:24px;z-index:100;animation:modal-fade .15s ease}@keyframes modal-fade{0%{opacity:0}to{opacity:1}}.modal-card{background:var(--bg-card);border-radius:var(--radius);padding:22px 20px;width:100%;max-width:380px;box-shadow:0 20px 60px #1a244047;animation:modal-pop .18s ease}@keyframes modal-pop{0%{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-title{font-weight:800;font-size:1.1rem;margin-bottom:8px}.modal-msg{color:var(--text);font-size:.95rem;line-height:1.5}.modal-input{width:100%;background:var(--bg-card-2);border:2px solid transparent;border-radius:12px;padding:13px;color:var(--text);outline:none;margin-top:14px}.modal-input:focus{border-color:var(--accent)}.modal-actions{display:flex;gap:10px;margin-top:20px}.modal-btn{flex:1;padding:12px;border-radius:12px;font-weight:700;font-size:.95rem;transition:transform .1s,opacity 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.2s}.onb-dot.active{background:var(--accent);width:22px;border-radius:4px}.speak-target{background:var(--bg-card);border-radius:var(--radius);padding:22px 18px;text-align:center;margin-bottom:16px}.speak-target .phrase{font-size:1.5rem;font-weight:700;line-height:1.3}.speak-target .es{color:var(--text-dim);font-size:.95rem;margin-top:8px}.mic-btn{display:flex;align-items:center;justify-content:center;width:96px;height:96px;border-radius:50%;background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff;font-size:2.4rem;margin:6px auto 18px;transition:transform .1s}.mic-btn:active{transform:scale(.93)}.mic-btn.recording{background:linear-gradient(135deg,#dc2626,#b91c1c);animation:mic-pulse 1.1s ease-in-out infinite}@keyframes mic-pulse{0%,to{box-shadow:0 0 #dc262666}50%{box-shadow:0 0 0 16px #dc262600}}.speak-result{background:var(--bg-card);border-radius:14px;padding:16px;margin-bottom:14px;text-align:center}.speak-result .heard{font-size:.9rem;color:var(--text-dim);margin-bottom:8px}.speak-result .heard .ok{color:var(--accent-2);font-weight:700}.speak-result .heard .miss{color:var(--error);text-decoration:line-through}.speak-result .score-line{font-size:1.4rem;font-weight:800}.speak-progress{color:var(--text-dim);font-size:.85rem;text-align:center;margin-bottom:10px}.paywall-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a244073;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:center;z-index:100;padding:0}.paywall-card{background:var(--bg-card);width:100%;max-width:480px;border-radius:20px 20px 0 0;padding:24px 20px calc(24px + env(safe-area-inset-bottom));position:relative;animation:paywall-up .25s ease}@keyframes paywall-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.paywall-close{position:absolute;top:14px;right:14px;background:none;border:none;color:var(--text-dim);font-size:1.1rem;cursor:pointer}.paywall-emoji{font-size:2.4rem;text-align:center}.paywall-title{text-align:center;margin:6px 0 4px;font-size:1.35rem}.paywall-sub{text-align:center;color:var(--text-dim);font-size:.92rem;margin-bottom:16px}.paywall-perks{list-style:none;margin:0 auto 18px;max-width:300px}.paywall-perks li{padding:5px 0 5px 26px;position:relative;font-size:.95rem}.paywall-perks li:before{content:"✓";position:absolute;left:4px;color:var(--accent-2);font-weight:700}.paywall-plans{display:flex;flex-direction:column;gap:10px}.paywall-plan{display:flex;flex-direction:column;align-items:center;gap:2px;padding:14px;border:1px solid var(--accent);background:var(--bg-card-2);border-radius:var(--radius);color:var(--text);cursor:pointer}.paywall-plan:disabled{opacity:.5}.pp-label{font-weight:700}.pp-price{font-size:1.2rem;color:var(--accent-2)}.pp-hint{font-size:.8rem;color:var(--text-dim)}.paywall-note{text-align:center;color:var(--warn);font-size:.85rem;min-height:18px;margin-top:12px}.paywall-restore{display:block;margin:10px auto 0;background:none;border:none;color:var(--text-dim);text-decoration:underline;font-size:.85rem;cursor:pointer}.paywall-legal{text-align:center;color:var(--text-dim);font-size:.72rem;margin-top:14px;line-height:1.5}.paywall-legal a{color:var(--text-dim)}.lvl-pill{margin-left:auto;align-self:flex-start;color:#fff;font-weight:800;font-size:.82rem;padding:6px 12px;border-radius:999px;box-shadow:var(--shadow-card);flex-shrink:0}.vocab-head{display:flex;align-items:center;gap:10px}.vocab-hint{color:var(--text-dim);font-size:.82rem;margin:4px 0 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.vc-audio{grid-area:audio;font-size:1.15rem;opacity:.65}.collapse-toggle{display:flex;justify-content:space-between;align-items:center;gap:10px;width:100%;text-align:left;margin-top:22px;background:var(--bg-card);color:var(--text);font-weight:700;font-size:.92rem;border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow-card)}.collapse-toggle .chev{transition:transform .2s;color:var(--text-dim);flex-shrink:0}.collapse-toggle.open .chev{transform:rotate(180deg)}.collapse-body{margin-top:12px;animation:slide-in .2s ease}.study-modes{display:flex;gap:6px;background:var(--bg-card);border:1px solid var(--line);border-radius:12px;padding:4px;margin-bottom:14px;box-shadow:var(--shadow-card)}.mode-btn{flex:1;background:none;color:var(--text-dim);font-weight:700;font-size:.76rem;padding:9px 4px;border-radius:9px;white-space:nowrap}.mode-btn.active{background:var(--accent);color:#fff}.study-card .word.expr{font-size:1.5rem}.study-card .sc-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:10px}.study-card .sc-actions .known-btn{margin-top:0}.masked{display:inline-block;cursor:pointer;background:var(--bg-card-2);color:var(--text-dim);border:1px dashed var(--accent);border-radius:9px;padding:4px 14px;font-size:.9rem;font-style:normal;font-weight:600;vertical-align:middle}.masked:active{background:var(--bg-card)}.study-modes{overflow-x:auto;scrollbar-width:none}.study-modes::-webkit-scrollbar{display:none}.mode-btn{flex:1 0 auto;min-width:78px}.essentials-toggle{display:flex;align-items:center;gap:8px;font-size:.82rem;font-weight:600;color:var(--text-dim);background:var(--bg-card);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:14px;box-shadow:var(--shadow-card);cursor:pointer}.essentials-toggle input{width:18px;height:18px;accent-color:var(--accent)}.study-card .word.type-ph{color:var(--text-dim);font-weight:700;font-size:1.2rem}.cloze-blank{color:var(--accent);font-weight:800;letter-spacing:.08em;cursor:pointer;font-style:normal}.type-box{margin:14px 0 4px}.type-input{width:100%;background:var(--bg-card-2);border:2px solid var(--line);border-radius:12px;padding:13px 14px;color:var(--text);outline:none;margin-bottom:10px}.type-input:focus{border-color:var(--accent)}.type-input:disabled{opacity:.7}.btn.type-check{padding:12px;font-size:.98rem}.type-feedback{text-align:center;font-weight:700;min-height:1.3em;margin-top:10px}.type-feedback.good{color:var(--accent-2)}.type-feedback.bad{color:var(--error)}.self-rate{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:16px;flex-wrap:wrap}.self-rate span{color:var(--text-dim);font-size:.9rem;font-weight:600}.sr-btn{background:var(--bg-card-2);color:var(--text);border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-weight:700;font-size:.95rem}.sr-btn.yes{border-color:var(--accent-2)}.sr-btn.no{border-color:var(--warn)}.sr-btn:active{transform:scale(.96)}