:root{--brand: #2563eb;--brand-strong: #1d4ed8;--brand-050: #eff4ff;--bg: #f1f5f9;--surface: #ffffff;--surface-2: #f8fafc;--line: #e2e8f0;--text: #0f172a;--muted: #64748b;--danger: #dc2626;--ok: #059669;--warn: #b45309;--r-sm: 8px;--r: 12px;--r-lg: 16px;--pill: 999px;--sh-sm: 0 1px 2px rgba(15, 23, 42, .06);--sh: 0 6px 20px rgba(15, 23, 42, .08);--sh-lg: 0 16px 40px rgba(15, 23, 42, .18);--ctrl: 44px}@media(min-width:900px){:root{--ctrl: 40px}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.55 system-ui,-apple-system,Segoe 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16px}.card>.stack{padding:16px}.stack{display:flex;flex-direction:column;gap:12px}.row-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}@media(max-width:560px){.row-2{grid-template-columns:1fr}}.fld{display:flex;flex-direction:column;gap:6px}.fld>span{font-size:12px;font-weight:700;color:var(--muted)}.input{height:var(--ctrl);width:100%;padding:0 12px;border-radius:var(--r);border:1px solid #cbd5e1;background:var(--surface);color:var(--text);font-size:15px;outline:none;transition:border-color .15s ease,box-shadow .15s ease}.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #2563eb26}.btn{height:var(--ctrl);display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 16px;border-radius:var(--r);border:1px solid transparent;font-weight:800;font-size:14px;cursor:pointer;white-space:nowrap;transition:transform .05s ease,background .15s ease,box-shadow .15s ease}.btn:active{transform:scale(.98)}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px #2563eb47}.btn-primary:hover{background:var(--brand-strong)}.btn-ghost{background:var(--surface-2);color:var(--text);border-color:var(--line)}.btn-danger{background:var(--danger);color:#fff}.btn-lg{height:52px;font-size:16px;border-radius:14px}.note{font-size:13px;padding:8px 12px;border-radius:10px;margin-top:10px}.note.ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}.note.warn{background:#fffbeb;border:1px solid #fde68a;color:var(--warn)}.genurl{display:flex;gap:8px;margin-top:10px}.genurl .input{font-size:13px}.callbar{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:10px 12px;margin-bottom:12px;box-shadow:var(--sh-sm)}.cb-info{display:flex;align-items:center;gap:10px;min-width:0}.cb-live{display:inline-flex;align-items:center;gap:6px;font-weight:800;font-size:12px;color:var(--danger)}.cb-live 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var(--line);background:var(--surface);cursor:pointer;font-size:14px;display:grid;place-items:center}.iconbtn.target-on{background:var(--brand);border-color:var(--brand);color:#fff}.target-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:700;color:var(--brand-strong);background:var(--brand-050);border:1px solid #dbe4ff;border-radius:var(--pill);padding:3px 9px;cursor:pointer;white-space:nowrap;max-width:45%;overflow:hidden;text-overflow:ellipsis}.iconbtn.danger{background:#fef2f2;border-color:#fecaca}.msg{margin-bottom:12px;max-width:88%}.msg .who{font-size:11px;font-weight:800;color:var(--muted);margin:0 0 3px 2px}.bubble{background:var(--surface);border:1px solid var(--line);border-radius:4px 14px 14px;padding:9px 13px;font-size:14px;line-height:1.45;word-wrap:break-word;overflow-wrap:anywhere}.composer{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line);background:var(--surface)}.composer 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video{width:100%;max-height:60vh;object-fit:contain}.capture-controls{display:flex;justify-content:center;gap:10px;padding:14px;border-top:1px solid var(--line)}.capbtn{height:38px;border:1px solid var(--line);background:var(--surface-2);color:var(--text);padding:0 14px;border-radius:10px;font-weight:800;cursor:pointer}.capbtn.primary{background:var(--brand);color:#fff;border-color:transparent}.foot{margin-top:16px;text-align:center;color:var(--muted);font-size:12px}@media(max-width:900px){.main-split{display:flex;flex-direction:column;gap:12px}.stage{height:48vh;min-height:300px}.collab-wrap{height:auto}.collab{height:72vh}.fab-group{right:12px}}@media(max-width:420px){.screen{padding:10px}.stage{height:44vh;min-height:260px}.seg button{padding:7px 10px}.fab-primary{width:52px;height:52px;font-size:22px}.fab-mini{width:42px;height:42px;font-size:20px}}