:root{color-scheme:light;--bg: #f6f7f9;--surface: #ffffff;--surface-alt: #f1f3f6;--border: #e3e6ea;--border-strong: #cfd4da;--text: #1f2937;--text-muted: #6b7280;--accent: #2f6fed;--accent-hover: #2560d8;--accent-soft: #e4edff;--danger: #e5484d;--danger-bg: #fdecec;--danger-border: #f6c7c7;--danger-text: #a4232a;--notice-border: #cddcff;--notice-text: #1e40af;--success: #16a34a;--field-bg: #ffffff;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-panel: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .1);--shadow-popover: 0 4px 12px rgba(16, 24, 40, .14);--font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif}:root[data-theme=dark]{color-scheme:dark;--bg: #14171c;--surface: #1b1f26;--surface-alt: #242932;--border: #313742;--border-strong: #414a58;--text: #e6e9ef;--text-muted: #98a2b3;--accent: #679bff;--accent-hover: #7fadff;--accent-soft: #22304d;--danger: #ff6b6f;--danger-bg: #3a1f22;--danger-border: #5c2b2f;--danger-text: #ff9a9e;--notice-border: #2c3d5f;--notice-text: #b9cdf7;--success: #4ade80;--field-bg: #242932;--shadow-panel: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .45);--shadow-popover: 0 4px 12px rgba(0, 0, 0, .5)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid var(--border-strong);border-radius:var(--radius-md);background:var(--surface);color:var(--text);font-size:14px;font-weight:500;text-decoration:none;transition:background .12s ease,border-color .12s ease}.btn:hover{background:var(--surface-alt)}.btn--primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn--primary:hover{background:var(--accent-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}.banner{padding:12px 16px;border-radius:var(--radius-md);font-size:14px;margin-bottom:16px}.banner--error{background:var(--danger-bg);color:var(--danger-text);border:1px solid var(--danger-border)}.boot{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted);font-size:15px}.boot--error{color:var(--danger)}.dashboard__actions{display:flex;align-items:center;gap:16px}.user-chip{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);white-space:nowrap}.user-chip__avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;background:var(--surface-alt)}.user-chip__avatar--fallback{display:inline-flex;align-items:center;justify-content:center;background:var(--accent-soft);color:var(--accent);font-size:11px;font-weight:600}.user-chip__name{max-width:180px;overflow:hidden;text-overflow:ellipsis}.user-chip__logout{color:var(--accent);text-decoration:none}.user-chip__logout:hover{text-decoration:underline}.dashboard{max-width:1120px;margin:0 auto;padding:48px 32px 80px}.dashboard__header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:32px}.dashboard__title{display:flex;align-items:center;gap:12px;margin:0;font-size:28px;font-weight:700;letter-spacing:-.02em}.brand-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#2f6fed,#6aa1ff);box-shadow:var(--shadow-popover)}.dashboard__subtitle{margin:6px 0 0;color:var(--text-muted);font-size:15px}.dashboard__empty{display:flex;flex-direction:column;align-items:center;gap:16px;padding:80px 24px;border:1px dashed var(--border-strong);border-radius:var(--radius-lg);background:var(--surface);color:var(--text-muted);font-size:15px}.board-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;margin:0;padding:0;list-style:none}.board-card{position:relative;border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-panel);overflow:hidden;transition:transform .14s ease,box-shadow .14s ease}.board-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px #10182824}.board-card__preview{display:block;width:100%;height:148px;padding:0;border:0;border-bottom:1px solid var(--border);background:var(--surface-alt)}.board-card__preview img{width:100%;height:100%;object-fit:cover}.board-card__placeholder{display:flex;width:100%;height:100%;background-image:radial-gradient(var(--border-strong) 1px,transparent 1px);background-size:16px 16px;opacity:.6}.board-card__meta{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px}.board-card__title{flex:1;border:0;background:none;padding:0;font-size:15px;font-weight:600;color:var(--text);text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.board-card__date{color:var(--text-muted);font-size:12px;white-space:nowrap}.board-card__delete{position:absolute;top:8px;right:8px;width:26px;height:26px;border:0;border-radius:50%;background:#ffffffe6;color:var(--text-muted);font-size:16px;line-height:1;opacity:0;transition:opacity .12s ease,color .12s ease}.board-card:hover .board-card__delete{opacity:1}.board-card__delete:hover{color:var(--danger)}.board{display:flex;flex-direction:column;height:100%}.board__header{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border);z-index:5}.board__back{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text);font-size:16px;text-decoration:none;transition:background .12s ease}.board__back:hover{background:var(--surface-alt)}.board__title{flex:1;max-width:520px;border:1px solid transparent;border-radius:var(--radius-sm);padding:6px 10px;background:transparent;font-size:15px;font-weight:600;color:var(--text);font-family:inherit}.board__title:hover{background:var(--surface-alt)}.board__title:focus{outline:none;background:var(--surface);border-color:var(--accent)}.board__save{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;flex:0 0 18px;color:var(--text-muted)}.board__save--saved{color:var(--success)}.board__save--error{color:var(--danger)}.board__save--saving svg{animation:board-spin .9s linear infinite}@keyframes board-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.board__save--saving svg{animation:none}}.board__peers{display:flex;align-items:center;padding-left:4px}.board__peer{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;flex:0 0 28px;margin-left:-8px;padding:0;border:2px solid var(--surface);border-radius:50%;color:#fff;font-size:11px;font-weight:600;line-height:1;user-select:none;box-shadow:0 1px 2px #10182829}.board__peer:first-child{margin-left:0}.board__peer--self{box-shadow:0 0 0 2px var(--accent-soft),0 1px 2px #10182829}.board__peer--following{box-shadow:0 0 0 2px var(--accent),0 1px 2px #10182829}.board__peer--more{background:var(--surface-alt);color:var(--text-muted);border-color:var(--border)}.board__follow-stop{margin-left:4px;padding:3px 8px;border:1px solid var(--accent);border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent);font-size:12px;white-space:nowrap}.board__error-banner{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--danger-bg);border-bottom:1px solid var(--danger-border);color:var(--danger-text);font-size:13px}.board__error-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.board__retry{padding:3px 10px;border:1px solid var(--danger);border-radius:var(--radius-sm);background:transparent;color:var(--danger);font-size:12px;white-space:nowrap}.board__retry:hover{background:var(--surface)}.board__body{position:relative;flex:1;min-height:0}.board__loading,.board-error{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;height:100%;color:var(--text-muted)}.board-error{height:100vh}.canvas-root{position:absolute;inset:0;overflow:hidden;background:var(--bg);touch-action:none}.canvas-editor{position:absolute;margin:0;padding:12px;border:2px solid var(--accent);border-radius:var(--radius-sm);resize:none;overflow:hidden;font-family:var(--font);color:var(--text);outline:none;z-index:2}.canvas-zoom{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:2px;padding:4px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);box-shadow:var(--shadow-panel);z-index:3}.canvas-zoom button{min-width:34px;height:30px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--text);font-size:15px;font-weight:600}.canvas-zoom button:hover{background:var(--surface-alt)}.canvas-zoom__value{font-size:12px!important;color:var(--text-muted)!important;padding:0 6px}.toolbar{position:absolute;top:16px;left:16px;display:grid;grid-template-columns:repeat(2,1fr);gap:2px;max-height:calc(100% - 32px);overflow-y:auto;padding:6px;width:140px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-panel);z-index:3}.toolbar__button{display:flex;flex-direction:column;align-items:center;gap:2px;padding:7px 2px;border:0;border-radius:var(--radius-md);background:transparent;color:var(--text-muted);transition:background .12s ease,color .12s ease}.toolbar__row{grid-column:1 / -1;display:flex;justify-content:center;gap:4px}.toolbar__button--compact{width:100%}.toolbar__button:hover:not(:disabled){background:var(--surface-alt);color:var(--text)}.toolbar__button.is-active{background:var(--accent-soft);color:var(--accent)}.toolbar__button:disabled{opacity:.4;cursor:not-allowed}.toolbar__label{font-size:10px;font-weight:500;line-height:1.1}.toolbar__divider{grid-column:1 / -1;height:1px;margin:4px 2px;background:var(--border)}.style-panel{position:absolute;left:50%;bottom:16px;transform:translate(-50%);display:flex;align-items:stretch;gap:0;max-width:calc(100% - 240px);overflow-x:auto;padding:8px 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8px;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.share__hint{margin:0 0 10px;font-size:13px;color:var(--text-muted)}.share__invite{display:flex;gap:8px}.share__input,.share__select,.share__link{padding:8px 10px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);font-family:inherit;font-size:13px;color:var(--text)}.share__input{flex:1;min-width:0}.share__link{flex:1;min-width:0;color:var(--text-muted)}.share__list{margin:0;padding:0;list-style:none}.share__row{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}.share__avatar{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;flex:0 0 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var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-panel)}.comments__header{display:flex;align-items:center;justify-content:space-between}.comments__title{display:flex;align-items:center;gap:8px;margin:0;font-size:15px}.comments__count{padding:1px 7px;border-radius:10px;background:var(--accent-soft);color:var(--accent);font-size:12px}.comments__toggle{display:flex;align-items:center;gap:6px;margin:10px 0;font-size:12px;color:var(--text-muted)}.comments__list{display:flex;flex-direction:column;gap:8px;margin:0;padding:0;list-style:none}.comment{padding:10px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface)}.comment--open{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.comment--resolved{opacity:.6}.comment__author{display:flex;align-items:center;gap:8px;margin-bottom:6px}.comment__avatar{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;flex:0 0 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8px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.session__clock{font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;text-align:center}.session__clock.is-expired{color:var(--danger)}.session__progress{height:4px;margin:8px 0 10px;border-radius:2px;background:var(--surface-alt);overflow:hidden}.session__progress-fill{height:100%;background:var(--accent);transition:width .25s linear}.session__row{display:flex;flex-wrap:wrap;align-items:center;gap:6px}.session__row--between{justify-content:space-between;margin-top:8px}.session__row .btn{height:30px;padding:0 10px;font-size:13px}.session__preset{flex:1;min-width:48px;height:30px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-family:inherit;font-size:13px}.session__preset:hover{background:var(--surface-alt)}.session__check{display:flex;align-items:center;gap:8px;font-size:13px}.session__field{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px;font-size:13px}.session__field input{width:64px;padding:4px 6px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--field-bg);color:var(--text);font-family:inherit}.session__stat{font-size:12px;color:var(--text-muted)}.session__note{margin:8px 0 0;font-size:12px;color:var(--text-muted)}.session__error{margin:6px 0 0;font-size:12px;color:var(--danger)}.export-menu{position:relative}.export-menu__toggle{display:inline-flex;align-items:center;gap:6px}.export-menu__panel{position:absolute;top:calc(100% + 8px);right:0;z-index:7;width:220px;padding:6px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-panel)}.export-menu__item{display:block;width:100%;padding:8px 10px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--text);font-family:inherit;font-size:13px;text-align:left}.export-menu__item:hover:not(:disabled){background:var(--surface-alt)}.export-menu__item:disabled{opacity:.5}.export-menu__divider{height:1px;margin:6px 4px;background:var(--border)}.export__hint{margin:0 0 8px;font-size:13px;color:var(--text-muted)}.export__actions{display:flex;gap:8px;margin-top:12px}.embed__input{width:100%;padding:8px 10px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--field-bg);font-family:inherit;font-size:14px;color:var(--text)}.embed__input:focus{outline:none;border-color:var(--accent)}.embed__error{margin:8px 0 0;font-size:13px;color:var(--danger)}.embed-live{position:absolute;z-index:4;border-radius:8px;background:#fff;box-shadow:var(--shadow-panel)}.embed-live__frame{display:block;width:100%;height:100%;border:0;border-radius:8px;background:#fff}.embed-live__bar{position:absolute;top:6px;right:6px;z-index:2;display:flex;align-items:center;gap:8px;max-width:calc(100% - 12px);padding:4px 6px;border-radius:var(--radius-sm);background:#111827c7;color:#fff;font-size:11px}.embed-live__name{font-weight:600}.embed-live__host{overflow:hidden;max-width:160px;text-overflow:ellipsis;white-space:nowrap;opacity:.8}.embed-live__link{color:#cfe0ff;text-decoration:none}.embed-live__link:hover{text-decoration:underline}.embed-live__close{width:18px;height:18px;border:0;border-radius:4px;background:transparent;color:#fff;font-size:15px;line-height:1}.embed-live__close:hover{background:#ffffff2e}.embed-open{position:absolute;z-index:4;display:inline-flex;align-items:center;height:26px;padding:0 12px;border:1px solid var(--border);border-radius:13px;background:var(--surface);box-shadow:var(--shadow-popover);color:var(--text);font-family:inherit;font-size:12px;font-weight:600;white-space:nowrap;transform:translate(-100%,-122%)}.embed-open:hover{background:var(--surface-alt)}.versions__save{display:flex;gap:8px;margin-bottom:14px}.versions__save .embed__input{flex:1}.versions__list{margin:0;padding:0;list-style:none}.version+.version{margin-top:6px}.version__head{display:flex;flex-direction:column;gap:3px;width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);font-family:inherit;text-align:left}.version__head:hover{background:var(--surface-alt)}.version--open .version__head{border-color:var(--accent);border-bottom-left-radius:0;border-bottom-right-radius:0}.version__name{font-size:14px;font-weight:600;color:var(--text)}.version__meta{font-size:12px;color:var(--text-muted)}.version__body{padding:12px;border:1px solid var(--accent);border-top:0;border-radius:0 0 var(--radius-md) var(--radius-md);background:var(--surface-alt)}.version__preview{height:150px;overflow:hidden;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;flex:0 0 34px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);color:var(--text-muted)}.theme-toggle:hover{background:var(--surface-alt);color:var(--text)}.locale-toggle{height:34px;padding:0 6px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);color:var(--text);font-family:inherit;font-size:12px;font-weight:600}.locale-toggle:hover{background:var(--surface-alt)}