:root{--bg:#f5f4f0;--surface:#fff;--ink:#1f2937;--muted:#6b7280;--line:#e5e7eb;--accent:#f59e0b;--accent-ink:#1f2937;--danger:#dc2626;--ok:#16a34a;--radius:12px;--shadow:0 1px 2px #0000000f, 0 4px 16px #0000000f}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.45}a{color:inherit}h1,h2,h3{margin:0 0 .5rem;line-height:1.2}h1{font-size:1.6rem}h2{font-size:1.2rem}h3{font-size:1rem}p{margin:0 0 .75rem}button,input,select,textarea{font:inherit;color:inherit}.page{max-width:720px;margin:0 auto;padding:20px 16px 60px}.page-wide{max-width:1100px}.topbar{z-index:20;background:var(--ink);color:#fff;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;display:flex;position:sticky;top:0}.topbar-left,.topbar-right{align-items:center;gap:10px;min-width:0;display:flex}.topbar-title{opacity:.85;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.brand{letter-spacing:-.01em;font-weight:700;text-decoration:none}.brand span{color:var(--accent)}.topbar .btn-ghost{color:#fff}.card-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:18px}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.row-between{justify-content:space-between}.stack{flex-direction:column;gap:12px;display:flex}.grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;display:grid}.muted{color:var(--muted)}.small{font-size:.85rem}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:6px;min-height:40px;padding:9px 14px;font-weight:500;text-decoration:none;display:inline-flex}.btn:hover{background:#f9fafb}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}.btn-primary:hover{background:#fbbf24}.btn-danger{color:var(--danger);border-color:#fecaca}.btn-ghost{background:0 0;border-color:#0000}.btn-sm{min-height:32px;padding:5px 10px;font-size:.85rem}.btn-block{width:100%}.field{flex-direction:column;gap:5px;margin-bottom:12px;display:flex}.field-label{font-size:.9rem;font-weight:600}.field-hint{color:var(--muted);font-size:.82rem}input[type=text],input[type=email],select,textarea{background:#fff;border:1px solid #d1d5db;border-radius:10px;width:100%;min-height:42px;padding:10px 12px}textarea{resize:vertical;min-height:110px}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.checkbox{align-items:center;gap:8px;margin-bottom:12px;display:flex}.checkbox input{width:18px;height:18px}.error-box{color:#991b1b;background:#fef2f2;border:1px solid #fecaca;border-radius:10px;margin-bottom:12px;padding:10px 12px}.notice{color:#065f46;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:10px;margin-bottom:12px;padding:10px 12px}.spinner-wrap{color:var(--muted);justify-content:center;align-items:center;gap:10px;padding:30px 0;display:flex}.spinner{border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.status{color:#d1d5db;align-items:center;gap:6px;font-size:.8rem;display:inline-flex}.status i{background:#9ca3af;border-radius:50%;width:8px;height:8px}.status-live i{background:#22c55e}.status-connecting i{background:var(--accent)}.status-offline i{background:var(--danger)}.hero{text-align:center;padding:48px 0 24px}.hero h1{letter-spacing:-.02em;font-size:2.2rem}.hero .lead{color:var(--muted);max-width:32rem;margin:0 auto 20px;font-size:1.1rem}.session-list a{border:1px solid var(--line);background:#fff;border-radius:10px;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px;padding:12px 14px;text-decoration:none;display:flex}.session-list a:hover{border-color:#d1d5db}.pill{color:var(--muted);background:#f3f4f6;border-radius:999px;padding:2px 8px;font-size:.75rem;display:inline-block}.pill-accent{color:#92400e;background:#fef3c7}.pill-ok{color:#166534;background:#dcfce7}.participants li{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:8px 0;display:flex}.participants li:last-child{border-bottom:0}.dot{background:#d1d5db;border-radius:50%;flex:none;width:9px;height:9px}.dot.on{background:#22c55e}.editor-layout{grid-template-columns:1fr;gap:18px;display:grid}@media (width>=900px){.editor-layout{grid-template-columns:1fr 1fr;align-items:start}.editor-preview{position:sticky;top:70px}}.preview-frame{border-radius:var(--radius);background:#e5e7eb;justify-content:center;padding:14px;display:flex;overflow:hidden}.swatches{flex-wrap:wrap;gap:8px;display:flex}.swatch{cursor:pointer;border:2px solid #0000001f;border-radius:8px;width:30px;height:30px;padding:0}.swatch.on{outline:3px solid var(--accent);outline-offset:1px}.segmented{border:1px solid #d1d5db;border-radius:10px;flex-wrap:wrap;display:inline-flex;overflow:hidden}.segmented button{cursor:pointer;background:#fff;border:0;border-right:1px solid #e5e7eb;min-height:38px;padding:8px 12px}.segmented button:last-child{border-right:0}.segmented button.on{background:var(--ink);color:#fff}.thumb-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;display:grid}.thumb{border:1px solid var(--line);border-radius:var(--radius);background:#fff;flex-direction:column;gap:8px;padding:10px;display:flex}.thumb-card{justify-content:center;display:flex}.thumb-meta{color:var(--muted);justify-content:space-between;align-items:center;gap:6px;font-size:.82rem;display:flex}.thumb-meta>span:last-child{flex-wrap:nowrap;flex:none}.board-shell{touch-action:none;cursor:grab;background:#e9e7e1 radial-gradient(#cfcdc6 1px,#0000 1px) 0 0/24px 24px;position:fixed;inset:52px 0 0;overflow:hidden}.board-shell.panning{cursor:grabbing}.board-canvas{transform-origin:0 0;will-change:transform;position:absolute;top:0;left:0}.board-card{cursor:default;-webkit-user-select:none;user-select:none;border-radius:6px;transition:box-shadow .15s;position:absolute;box-shadow:0 2px 6px #0000002e,0 10px 24px #00000014}.board-card.draggable{cursor:grab}.board-card.dragging{cursor:grabbing;box-shadow:0 8px 18px #00000047,0 24px 48px #0000002e}.board-card .pin{background:#ef4444;border-radius:50%;width:14px;height:14px;margin-left:-7px;position:absolute;top:-8px;left:50%;box-shadow:0 1px 3px #0006}.board-toolbar{box-shadow:var(--shadow);z-index:25;background:#fff;border-radius:999px;align-items:center;gap:6px;padding:6px 8px;display:flex;position:fixed;bottom:16px;left:50%;transform:translate(-50%)}.board-empty{color:var(--muted);pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.print-sheet{display:none}@media print{body{background:#fff}body.printing>#root>:not(.print-root),.print-root>:not(.print-sheet){display:none!important}.print-sheet{display:block!important}.print-sheet>div{border-radius:0!important}@page{margin:0}}.queue li{border-bottom:1px solid var(--line);align-items:center;gap:12px;padding:10px 0;display:flex}.queue li:last-child{border-bottom:0}.kbd{background:#f3f4f6;border:1px solid #d1d5db;border-bottom-width:2px;border-radius:6px;padding:1px 6px;font-family:ui-monospace,monospace;font-size:.85em}