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ease}.lvl-chip:hover{transform:scale(.96)}.lvl-chip.active{color:var(--on-primary);background:var(--primary);border-color:var(--primary)}.daily-panel,.stats-panel{margin:20px 0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}.daily-result{margin-bottom:20px;color:var(--ink);text-align:center}.daily-result strong{color:var(--primary)}.result-done{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);font-weight:800;font-size:1.4rem;color:var(--primary)}.result-done .material-symbols-outlined{font-size:1.6rem}.result-time{font-family:var(--font-mono);font-weight:700;font-size:3rem;line-height:1.1;margin:4px 0 2px;color:var(--ink);font-variant-numeric:tabular-nums}.result-sub{color:var(--muted);font-family:var(--font-mono);font-size:.9rem}.result-sub strong{color:var(--tertiary)}.daily-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.pseudo-label{color:var(--muted);font-family:var(--font-mono);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}.pseudo-label input{margin-left:8px;background:var(--surface-low);border:0;border-bottom:2px solid var(--border);border-radius:var(--radius-sm) var(--radius-sm) 0 0;padding:8px 12px;color:var(--ink);font-family:var(--font-mono);font-size:.95rem;text-transform:none;letter-spacing:0;transition:border-color .2s ease}.pseudo-label input:focus{outline:none;border-bottom:2px solid var(--primary)}.daily-actions button{background:var(--primary);color:var(--on-primary);border:0;border-radius:var(--radius-sm);padding:10px 18px;font-family:var(--font-display);font-weight:700;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.daily-actions button:hover{transform:scale(.98)}#btn-daily-retry{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:transparent;color:var(--primary);border:2px solid var(--primary)}.leaderboard{margin-top:20px}.leaderboard h3{margin:0 0 10px;font-family:var(--font-display);font-weight:700;font-size:1.15rem}.me-rank{margin:4px 0 12px;color:var(--tertiary);font-family:var(--font-mono);font-size:.85rem}.me-rank strong{color:var(--primary)}.leaderboard table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}.leaderboard th,.leaderboard td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}.leaderboard th{color:var(--muted);font-family:var(--font-mono);font-weight:500;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}.leaderboard td{font-family:var(--font-mono);font-size:.9rem}.leaderboard tbody tr:first-child td{font-weight:700}.leaderboard tr.me td{color:var(--primary);font-weight:700;background:var(--primary-tint);box-shadow:inset 3px 0 0 var(--primary)}.stats-panel h3{margin:0 0 16px;font-family:var(--font-display);font-weight:700;font-size:1.15rem}.stats-none{color:var(--muted)}.stat-global{display:flex;align-items:baseline;gap:12px;margin-bottom:20px}.stat-big{font-family:var(--font-mono);font-size:2.4rem;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1}.stat-cap{color:var(--muted);font-size:.9rem}.stats-section{margin-top:18px}.stats-label{color:var(--muted);font-family:var(--font-mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.lvl-row{display:flex;align-items:center;gap:12px;margin:6px 0}.lvl-name{width:130px;font-size:.9rem;font-weight:500}.lvl-bar{flex:1;height:8px;background:var(--surface-high);border-radius:var(--radius-pill);overflow:hidden}.lvl-bar span{display:block;height:100%;background:var(--primary);border-radius:var(--radius-pill);transition:width .4s var(--ease-kinetic)}.lvl-val{width:90px;text-align:right;font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:.88rem}.lvl-val small{color:var(--muted)}.spark{width:100%;height:48px;color:var(--tertiary)}.chart{display:block;width:100%;max-width:360px;height:auto}.chart-axis{stroke:var(--border);stroke-width:1}.chart-grid{stroke:var(--border-soft);stroke-width:1;stroke-dasharray:2 3}.chart-line{fill:none;stroke:var(--tertiary);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}.chart-dot{fill:var(--tertiary)}.chart-tick{fill:var(--muted);font-family:var(--font-mono);font-size:9px}.stats-note{margin:18px 0 0;color:var(--faint);font-size:.8rem;font-style:italic}.board{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 32px;min-height:300px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--shadow);overflow:hidden}.board-top{display:flex;justify-content:space-between;align-items:baseline;color:var(--muted);font-family:var(--font-mono);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}.timer{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;color:var(--primary);font-size:1.4rem;letter-spacing:-.01em}.target-label{position:absolute;top:16px;left:20px;font-family:var(--font-mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--faint);user-select:none}.target{flex:1;display:flex;align-items:center;justify-content:center;font-size:2.4rem;min-height:120px;text-align:center;color:var(--ink)}.board-bottom{display:flex;align-items:center;gap:12px;background:var(--surface-low);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;min-height:40px}.preview-label{color:var(--muted);font-family:var(--font-mono);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}.preview{color:var(--primary);font-family:var(--font-mono);font-size:.95rem;font-weight:500;word-break:break-all;display:inline-block;min-height:1.4em;line-height:1.4}.reveal-answer{display:flex;align-items:center;gap:12px;margin-top:8px;padding:10px 16px;background:#d977061a;border:1px dashed #d97706;border-radius:var(--radius-sm)}.reveal-answer-label{color:#b45309;font-family:var(--font-mono);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}.reveal-answer-src{color:var(--ink);font-family:var(--font-mono);font-size:.95rem;font-weight:500;word-break:break-all;user-select:all}.idle-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);background:#ffffffdb;backdrop-filter:blur(2px)}.idle-overlay.hidden{display:none}.idle-card{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;padding:8px 20px}.idle-title{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:1.9rem;font-weight:800;letter-spacing:-.02em;color:var(--ink)}.idle-title .material-symbols-outlined{color:var(--primary);vertical-align:baseline;font-size:1.6rem}.idle-sub{color:var(--muted);font-size:.98rem;max-width:440px;line-height:1.5}.idle-sub strong{color:var(--primary);font-weight:700}.idle-overlay button{margin-top:10px;background:var(--primary);color:var(--on-primary);border:0;border-radius:var(--radius-sm);padding:16px 48px;font-family:var(--font-display);font-size:1.15rem;font-weight:800;cursor:pointer;box-shadow:var(--shadow-cta);transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.idle-overlay button:hover:not(:disabled){transform:scale(.98);box-shadow:var(--shadow-press);background:var(--primary-strong)}.idle-overlay button:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.history{margin-top:28px;display:flex;flex-direction:column;gap:8px}.hist-row{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 16px;box-shadow:0 4px 12px #00000008}.hist-render{min-width:90px}.hist-src{flex:1;font-family:var(--font-mono);font-size:.85rem;color:var(--muted);word-break:break-all}.hist-time{color:var(--secondary);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;font-size:.85rem}.countdown{position:absolute;inset:0;display:none;align-items:center;justify-content:center;font-family:var(--font-display);font-size:6rem;font-weight:900;font-style:italic;background:#ffffffe6;border-radius:var(--radius);color:var(--primary)}.countdown.visible{display:flex}.controls{display:flex;align-items:center;gap:12px;margin:20px 0;flex-wrap:wrap}.controls button{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--primary);color:var(--on-primary);border:0;border-radius:var(--radius-sm);padding:10px 18px;font-family:var(--font-display);font-weight:700;font-size:.95rem;cursor:pointer;transition:transform .15s ease}.controls button .material-symbols-outlined,#btn-daily-retry .material-symbols-outlined{font-size:1.1rem;vertical-align:baseline}.controls button:hover:not(:disabled){transform:scale(.98)}.controls button:disabled{opacity:.4;cursor:not-allowed}#btn-skip,#btn-restart{background:transparent;color:var(--primary);border:2px solid var(--primary)}#btn-reveal{background:transparent;color:#b45309;border:2px solid #d97706}#btn-reveal small{font-size:.72rem;font-weight:700;opacity:.85}#btn-quit{display:none;align-items:center;justify-content:center;gap:6px;background:transparent;color:var(--primary);border:2px solid var(--primary);border-radius:var(--radius-sm);padding:10px 18px;font-family:var(--font-display);font-weight:700;font-size:.95rem;cursor:pointer;transition:transform .15s ease}#btn-quit:hover{transform:scale(.98)}body.playing .modes .mode-btn{display:none}body.playing #btn-quit{display:inline-flex}.stats{color:var(--muted);font-family:var(--font-mono);font-size:.88rem;font-variant-numeric:tabular-nums}.status{margin-left:auto;color:var(--muted);font-family:var(--font-mono);font-size:.8rem;letter-spacing:.03em}.input-area{margin-top:8px}.math-culture{display:flex;align-items:center;gap:6px;margin-bottom:8px;color:var(--muted);font-size:.85rem}.math-culture button{background:var(--surface-low);color:var(--ink);border:1px solid var(--border);border-radius:var(--radius-sm);padding:3px 10px;cursor:pointer}.math-culture button.active{border-color:var(--primary);color:var(--primary)}.editor-wrap{margin:0}.editor{width:100%;box-sizing:border-box;resize:vertical;min-height:64px;background:var(--surface);border:1px solid var(--border);border-bottom:2px solid var(--border);border-radius:var(--radius-sm);padding:16px 18px;color:var(--ink);font-family:var(--font-mono);font-size:1.2rem;line-height:1.5;outline:none;box-shadow:var(--shadow);transition:border-color .2s ease}.editor:focus{border-bottom:4px solid var(--primary);padding-bottom:14px}.editor::placeholder{color:var(--faint)}.loading{position:fixed;inset:0;z-index:1000;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:#f8f9faf0}.loading-text{color:var(--muted);font-family:var(--font-mono);font-size:.9rem;letter-spacing:.03em}.loading-spinner{width:34px;height:34px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.input-guide{margin:12px 0 8px;color:var(--ink);font-size:.9rem}.input-guide strong{color:var(--primary)}.input-guide .material-symbols-outlined{color:var(--primary);font-size:1.1rem;vertical-align:-.2em}.hint .material-symbols-outlined{color:var(--muted);font-size:1rem;vertical-align:-.18em}.input-guide kbd,.hint kbd{background:var(--surface-high);border:1px solid var(--border);border-radius:5px;padding:1px 6px;font-family:var(--font-mono);font-size:.75rem}.caret-popup{display:none;position:fixed;z-index:200;left:0;top:0;width:max-content;min-width:200px;max-width:min(440px,92vw);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow)}.caret-popup.visible{display:block}.caret-popup .cand{display:flex;align-items:center;gap:14px;padding:10px 16px;cursor:pointer;border-left:3px solid transparent;transition:background .12s ease,border-color .12s ease}.caret-popup .cand:hover,.caret-popup .cand.nav-active{background:var(--primary-tint);border-left-color:var(--primary)}.caret-popup .cand-main{display:flex;align-items:center;gap:14px;flex:1;min-width:0}.caret-popup .cand-render{min-width:70px}.caret-popup .cand-src{color:var(--muted);font-family:var(--font-mono);font-size:.85rem;word-break:break-all}.caret-popup .cand-enter{margin-left:auto;display:inline-flex;align-items:center;gap:5px;color:var(--faint);font-family:var(--font-mono);font-size:.68rem;white-space:nowrap}.caret-popup .cand-enter kbd{background:var(--surface-high);border:1px solid var(--border);border-radius:4px;padding:0 5px;font-size:.72rem;color:var(--muted)}.hint{color:var(--muted);font-size:.8rem;margin-top:10px}.flash{animation:flash .5s ease}@keyframes flash{0%{color:var(--secondary);transform:scale(1.12)}to{transform:scale(1)}}.correct-flash{animation:flash-green .32s var(--ease-kinetic) forwards}@keyframes flash-green{0%{border-color:var(--border);box-shadow:var(--shadow)}45%{border-color:var(--secondary-container);box-shadow:var(--shadow),0 0 18px var(--secondary-glow)}to{border-color:var(--border);box-shadow:var(--shadow)}}@media (max-width: 560px){.game{padding:24px 16px 64px}.game-head h1{font-size:1.6rem}.target{font-size:1.8rem;min-height:90px}.timer{font-size:1.2rem}.daily-panel,.stats-panel,.board{padding:20px}.countdown{font-size:4.5rem}.lvl-name{width:92px}}