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ease;white-space:nowrap}.btn:hover{background:var(--bg-hover)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--accent);color:var(--accent-text);border-color:transparent}.btn.primary:hover{background:var(--accent-hover)}.btn.danger{background:var(--danger);color:#fff;border-color:transparent}.btn.danger:hover{filter:brightness(1.08)}.btn.ghost{background:transparent;border-color:transparent;color:var(--text-muted)}.btn.ghost:hover{background:var(--bg-hover);color:var(--text)}.btn.block{width:100%}.switch{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--border-soft)}.switch:last-child{border-bottom:none}.switch .text{min-width:0}.switch .text .t{font-size:14px;font-weight:550}.switch .text .d{font-size:12.5px;color:var(--text-muted);margin-top:2px}.toggle{width:40px;height:22px;border-radius:var(--radius-pill);background:var(--border-strong);position:relative;flex-shrink:0;transition:background .14s ease}.toggle:after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .14s cubic-bezier(.2,.8,.3,1)}.toggle.on{background:var(--accent)}.toggle.on:after{transform:translate(18px)}input[type=range]{width:100%;accent-color:var(--accent);height:4px;cursor:pointer}.auth-screen{height:100%;display:grid;place-items:center;padding:24px;background:radial-gradient(1000px 600px at 15% -10%,rgba(61,220,151,.09),transparent 60%),radial-gradient(800px 500px at 100% 100%,rgba(90,169,230,.07),transparent 55%),var(--bg-base)}.auth-card{width:min(440px,100%);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:34px 32px 28px}.auth-brand{display:flex;align-items:center;gap:11px;margin-bottom:6px}.auth-brand .mark{width:38px;height:38px;border-radius:11px;background:var(--accent);display:grid;place-items:center;color:var(--accent-text);font-weight:800;font-size:19px}.auth-brand .word{font-size:22px;font-weight:700;letter-spacing:-.02em}.auth-lead{color:var(--text-muted);font-size:14px;margin:0 0 24px}.auth-switch{margin-top:18px;text-align:center;font-size:13.5px;color:var(--text-muted)}.auth-switch button{color:var(--accent);font-weight:600}.auth-switch button:hover{text-decoration:underline}.banner{padding:10px 13px;border-radius:var(--radius-sm);font-size:13.5px;margin-bottom:16px;border:1px solid transparent}.banner.error{background:var(--danger-dim);color:var(--danger);border-color:#ff6b6b4d}.banner.info{background:var(--accent-ghost);color:var(--accent);border-color:var(--accent-dim)}.banner.warn{background:#f4b86021;color:var(--warn);border-color:#f4b8604d}.stage{flex:1;background:#0a0c10;display:grid;gap:10px;padding:14px;align-content:center;justify-content:center;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));min-height:0;overflow:auto}.stage.solo{grid-template-columns:1fr}.tile{position:relative;background:var(--bg-elevated);border-radius:var(--radius);overflow:hidden;aspect-ratio:16 / 9;display:grid;place-items:center;border:2px solid transparent;transition:border-color .14s ease;min-height:150px}.tile.speaking{border-color:var(--accent)}.tile video{width:100%;height:100%;object-fit:contain;background:#000}.tile .who{position:absolute;left:9px;bottom:9px;display:flex;align-items:center;gap:6px;padding:3px 9px 3px 4px;border-radius:var(--radius-pill);background:#080a0ec7;font-size:12.5px;font-weight:600;backdrop-filter:blur(6px)}.tile .who .avatar{width:20px;height:20px;font-size:9px}.tile .badge-live{position:absolute;top:9px;left:9px;padding:2px 8px;border-radius:4px;background:var(--danger);color:#fff;font-size:10.5px;font-weight:700;letter-spacing:.06em}.voice-bar{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;background:var(--bg-rail);border-top:1px solid var(--border-soft);flex-shrink:0}.voice-bar .round{width:44px;height:44px;border-radius:50%;background:var(--bg-elevated);display:grid;place-items:center;color:var(--text-soft);transition:background .12s ease,color .12s ease}.voice-bar .round:hover{background:var(--bg-hover);color:var(--text)}.voice-bar .round.on{background:var(--accent);color:var(--accent-text)}.voice-bar .round.off,.voice-bar .round.leave{background:var(--danger);color:#fff}.empty{display:grid;place-items:center;height:100%;text-align:center;padding:40px;color:var(--text-muted)}.empty .big{font-size:46px;margin-bottom:14px;opacity:.35}.empty h3{margin:0 0 6px;font-size:18px;color:var(--text);font-weight:650}.empty p{margin:0;font-size:14px;max-width:420px;line-height:1.6}.spinner{width:18px;height:18px;border:2px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.center-spinner{display:grid;place-items:center;padding:30px}.menu{position:fixed;z-index:200;min-width:190px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:5px;animation:rise .11s ease}.menu-item{display:flex;align-items:center;gap:9px;width:100%;padding:7px 10px;border-radius:var(--radius-sm);font-size:13.5px;color:var(--text-soft);text-align:left}.menu-item:hover{background:var(--bg-hover);color:var(--text)}.menu-item.danger{color:var(--danger)}.menu-item.danger:hover{background:var(--danger-dim)}.menu-sep{height:1px;background:var(--border-soft);margin:4px 2px}.tabs{display:flex;gap:2px;border-bottom:1px solid var(--border-soft);margin-bottom:18px}.tab{padding:9px 14px;font-size:13.5px;font-weight:600;color:var(--text-muted);border-bottom:2px solid transparent;margin-bottom:-1px}.tab:hover{color:var(--text-soft)}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.emoji-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(34px,1fr));gap:2px}.emoji-cell{width:34px;height:34px;border-radius:var(--radius-sm);display:grid;place-items:center;font-size:20px}.emoji-cell:hover{background:var(--bg-hover)}.emoji-cell img{width:22px;height:22px;object-fit:contain}.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;background:var(--bg-elevated);border:1px solid var(--border)}.chip .dot{width:8px;height:8px;border-radius:50%}.chip .x{opacity:.5}.chip .x:hover{opacity:1}.lightbox{position:fixed;inset:0;background:#040609ed;display:grid;place-items:center;z-index:300;padding:40px}.lightbox img{max-width:100%;max-height:100%;border-radius:var(--radius)}.lightbox .bar{position:absolute;top:16px;right:16px;display:flex;gap:8px}.status-strip{padding:5px 16px;font-size:12.5px;text-align:center;font-weight:600;flex-shrink:0}.status-strip.offline{background:var(--danger);color:#fff}.status-strip.connecting{background:var(--warn);color:#201703}@media(max-width:1080px){.app-shell.with-members{grid-template-columns:var(--rail-w) var(--sidebar-w) 1fr}.members{display:none}}@media(max-width:760px){:root{--sidebar-w: 200px;--rail-w: 60px}.chat-head .topic{display:none}}