:root{--bg-dark:#0b0f19;--bg-panel:#111827d9;--bg-card:#1e293bb3;--border-color:#ffffff1f;--text-main:#f8fafc;--text-sub:#94a3b8;--accent-cyan:#38bdf8;--accent-orange:#fb923c;--accent-yellow:#facc15;--accent-red:#f87171;--accent-green:#4ade80;--font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif}*{box-sizing:border-box;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;margin:0;padding:0}html,body{background-color:var(--bg-dark);width:100%;height:100%;color:var(--text-main);font-family:var(--font-family);font-size:14px;overflow:hidden}#app{flex-direction:column;width:100%;height:100dvh;display:flex;position:fixed;inset:0;overflow:hidden}#top-bar{background:var(--bg-panel);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);z-index:20;flex-flow:wrap;flex-shrink:0;justify-content:space-between;align-items:center;gap:6px 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10px;font-size:11px;font-weight:700}.modal-overlay{-webkit-backdrop-filter:blur(8px);z-index:1000;background:#000000bf;justify-content:center;align-items:center;width:100vw;height:100dvh;padding:16px;display:flex;position:fixed;top:0;left:0}.modal-overlay.hidden{display:none}.modal-card{border:1px solid var(--border-color);background:#111827;border-radius:16px;flex-direction:column;width:900px;max-width:95vw;max-height:90dvh;animation:.2s cubic-bezier(.16,1,.3,1) modalPop;display:flex;overflow:hidden;box-shadow:0 20px 50px #000c}.modal-card.periodic-table-card{width:1180px;max-width:98vw;max-height:94dvh}.modal-header{border-bottom:1px solid var(--border-color);background:#1e293b80;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;display:flex}.title-with-badge{align-items:center;gap:10px;display:flex}.title-with-badge 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0}.f-block-label{color:var(--text-sub);align-items:center;padding-left:4px;font-size:9.5px;font-weight:700;display:flex}.category-nonmetal{background:#38bdf824;border-color:#38bdf859}.category-noble-gas{background:#f9731624;border-color:#f9731659}.category-alkali-metal{background:#ec489929;border-color:#ec489966}.category-alkaline-earth{background:#10b98129;border-color:#10b98166}.category-metalloid{background:#a855f729;border-color:#a855f766}.category-halogen{background:#84cc1629;border-color:#84cc1666}.category-transition-metal{background:#64748b29;border-color:#64748b59}.category-post-transition-metal{background:#3b82f629;border-color:#3b82f659}.category-lanthanide{background:#f59e0b29;border-color:#f59e0b66}.category-actinide{background:#05966929;border-color:#05966966}.grid-cell.trend-cell{border-color:#ffffff2e}.grid-cell.trend-cell .cell-num,.grid-cell.trend-cell .cell-name{color:inherit;opacity:.85}.grid-cell.trend-cell 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pulseButton{0%,to{transform:scale(1);box-shadow:0 0 #38bdf8b3}50%{transform:scale(1.04);box-shadow:0 0 16px 4px #38bdf8cc}}@keyframes slideDown{0%{opacity:0;transform:translate(-50%,-20px)}to{opacity:1;transform:translate(-50%)}}#professor{z-index:15;pointer-events:none;align-items:flex-end;gap:8px;max-width:min(420px,100% - 24px);display:flex;position:absolute;bottom:12px;left:12px}.professor-avatar{pointer-events:auto;border:2px solid var(--accent-yellow);cursor:pointer;background:radial-gradient(circle at 35% 30%,#334155,#0f172a);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;padding:0;transition:transform .15s,opacity .2s;display:flex;position:relative;box-shadow:0 6px 16px #00000080}.professor-avatar:hover{transform:scale(1.06)}.professor-face{clip-path:circle(50%);width:100%;height:100%;display:block}.pf-mouth,.pf-sweat{display:none}#professor:not([data-mood]) .pf-mouth-happy,#professor[data-mood=happy] .pf-mouth-happy,#professor[data-mood=excited] .pf-mouth-excited,#professor[data-mood=warning] .pf-mouth-warning,#professor[data-mood=warning] .pf-sweat,#professor[data-mood=thinking] .pf-mouth-thinking{display:inline}.professor-badge{font-size:16px;line-height:1;position:absolute;top:-6px;right:-6px}#professor.talking .professor-face{animation:.5s ease-out 2 professorBounce}#professor.muted .professor-avatar{opacity:.45;border-color:#64748b}#professor.muted .professor-badge:after{content:"🔇"}.professor-bubble{pointer-events:auto;border:2px solid var(--accent-yellow);color:var(--text-main);cursor:pointer;background:#0f172af5;border-radius:14px;margin-bottom:18px;padding:8px 12px;font-size:13px;line-height:1.55;animation:.25s cubic-bezier(.16,1,.3,1) bubbleIn;position:relative;box-shadow:0 8px 24px #0009}.professor-bubble:before{content:"";border-style:solid;border-width:7px 9px 7px 0;border-color:transparent var(--accent-yellow) transparent transparent;position:absolute;bottom:10px;left:-9px}.professor-bubble.hidden{display:none}.professor-name{color:var(--accent-yellow);margin-bottom:2px;font-size:10px;font-weight:700;display:block}#professor[data-mood=warning] .professor-bubble{border-color:var(--accent-red)}#professor[data-mood=warning] .professor-bubble:before{border-right-color:var(--accent-red)}#professor[data-mood=thinking] .professor-bubble{border-color:var(--accent-cyan)}#professor[data-mood=thinking] .professor-bubble:before{border-right-color:var(--accent-cyan)}@keyframes professorBounce{0%,to{transform:translateY(0)}40%{transform:translateY(-5px)rotate(-6deg)}}@keyframes bubbleIn{0%{opacity:0;transform:translateY(8px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.modal-card.fireworks-card{width:640px}.fireworks-body{padding:12px 20px 20px;overflow-y:auto}.fw-subtitle{color:var(--text-sub);margin:0 0 8px;font-size:13px}.fw-section{color:var(--text-main);margin:14px 0 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