:root,:root[data-theme=dark]{--bg: #0b0d12;--bg-2: #12151c;--panel: #161a22;--panel-2: #1e232d;--border: #2a2f3a;--text: #eef1f6;--muted: #98a1b0;--primary: #4f8cff;--primary-contrast: #ffffff;--danger: #f04747;--shadow: 0 12px 40px rgba(0, 0, 0, .45);--tile-bg: #05070a}:root[data-theme=light]{--bg: #f4f6fb;--bg-2: #ffffff;--panel: #ffffff;--panel-2: #f1f4f9;--border: #e2e7ef;--text: #131720;--muted: #5c6675;--primary: #2563eb;--primary-contrast: #ffffff;--danger: #e11d48;--shadow: 0 12px 40px rgba(20, 30, 60, .12);--tile-bg: #dfe4ec}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;transition:background .3s ease,color .3s ease}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:11px 18px;border-radius:10px;font-size:15px;font-weight:500;cursor:pointer;transition:filter .15s,transform .05s,background .15s}.btn:hover{filter:brightness(1.06)}.btn:active{transform:translateY(1px)}.btn.primary{background:var(--primary);border-color:transparent;color:var(--primary-contrast);font-weight:600}.btn.ghost{background:transparent}.btn.small{padding:8px 14px;font-size:13px;border-radius:9px}.icon-btn{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:transparent;border:1px solid transparent;color:var(--muted);cursor:pointer;transition:background .15s,color .15s}.icon-btn:hover{background:var(--panel-2);color:var(--text)}.icon-btn.send{background:var(--primary);color:var(--primary-contrast);border:none}input{background:var(--bg-2);border:1px solid var(--border);border-radius:10px;padding:11px 13px;color:var(--text);font-size:15px;width:100%;transition:border-color .15s,box-shadow .15s}input::placeholder{color:var(--muted)}input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 22%,transparent)}.landing,.centered{min-height:100%;display:grid;place-items:center;padding:24px;position:relative}.theme-toggle{position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--panel);border:1px solid var(--border);color:var(--text);cursor:pointer}.theme-toggle:hover{filter:brightness(1.08)}.landing-card{background:var(--panel);border:1px solid var(--border);border-radius:20px;padding:36px;width:100%;max-width:400px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--shadow)}.brand{display:flex;align-items:center;gap:12px}.brand h1{margin:0;font-size:30px;letter-spacing:-.02em}.brand-mark{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:var(--primary);color:var(--primary-contrast)}.subtitle{color:var(--muted);margin:0;font-size:14.5px;line-height:1.5}label{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:500;color:var(--muted)}.divider{display:flex;align-items:center;color:var(--muted);font-size:12px;gap:12px}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border)}.join-row{display:flex;gap:10px}.join-row input{flex:1}.join-row .btn{padding:11px 15px}.footer-hint{position:absolute;bottom:22px;color:var(--muted);font-size:12.5px}.room{height:100%;display:flex;flex-direction:column}.room-header{display:flex;align-items:center;justify-content:space-between;padding:14px 22px;border-bottom:1px solid var(--border);background:var(--panel)}.room-info{display:flex;align-items:center;gap:14px;font-size:14px}.room-code{color:var(--muted)}.room-code strong{color:var(--text);letter-spacing:.03em}.room-badge{display:inline-flex;align-items:center;gap:6px;background:var(--panel-2);border:1px solid var(--border);padding:5px 11px;border-radius:999px;font-size:12.5px;color:var(--text)}.room-body{flex:1;display:flex;min-height:0}.grid{flex:1;display:grid;gap:14px;padding:18px;min-height:0}.grid-1{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr 1fr}.grid-3,.grid-4{grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}.tile{position:relative;background:var(--tile-bg);border-radius:16px;overflow:hidden;border:1px solid var(--border);min-height:0;box-shadow:var(--shadow)}.tile video{width:100%;height:100%;object-fit:cover;display:block}.tile video.mirrored{transform:scaleX(-1)}.tile-placeholder{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center}.tile-avatar{width:76px;height:76px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:var(--primary-contrast);font-size:26px;font-weight:600}.tile-name{position:absolute;bottom:10px;left:10px;display:flex;align-items:center;gap:8px;background:#0000008c;color:#fff;padding:5px 11px;border-radius:8px;font-size:13px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.tile-you{font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;background:var(--primary);padding:2px 6px;border-radius:5px}.controls{display:flex;justify-content:center;gap:10px;padding:14px;background:var(--panel);border-top:1px solid var(--border);flex-wrap:wrap}.ctrl{display:flex;flex-direction:column;align-items:center;gap:5px;background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:10px 16px;border-radius:14px;cursor:pointer;min-width:74px;transition:filter .15s,border-color .15s,transform .05s}.ctrl span{font-size:11px;color:var(--muted)}.ctrl:hover{filter:brightness(1.08)}.ctrl:active{transform:translateY(1px)}.ctrl.off{background:color-mix(in srgb,var(--danger) 16%,var(--panel-2));border-color:var(--danger)}.ctrl.off span{color:var(--text)}.ctrl.active{border-color:var(--primary)}.ctrl.active span{color:var(--primary)}.ctrl.leave{background:var(--danger);border-color:var(--danger);color:#fff}.ctrl.leave span{color:#fff}.chat,.bg-panel{width:328px;border-left:1px solid var(--border);background:var(--panel);display:flex;flex-direction:column;min-height:0}.chat-header,.bg-panel-header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--border);font-weight:600;font-size:15px}.chat-messages{flex:1;overflow-y:auto;padding:14px 16px;display:flex;flex-direction:column;gap:12px}.chat-empty{color:var(--muted);font-size:13px}.chat-msg{display:flex;flex-direction:column;gap:3px}.chat-msg strong{font-size:12px;color:var(--primary)}.chat-msg span{font-size:14px;line-height:1.4}.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border)}.chat-input input{flex:1}.bg-note{margin:12px 16px 0;font-size:12.5px;color:var(--muted);background:var(--panel-2);padding:10px 12px;border-radius:10px}.bg-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:16px;overflow-y:auto}.bg-swatch{position:relative;display:flex;flex-direction:column;align-items:center;gap:7px;background:transparent;border:none;color:var(--muted);cursor:pointer;padding:0;font-size:12px}.bg-swatch:disabled{opacity:.4;cursor:not-allowed}.bg-swatch span{font-weight:500}.bg-swatch.sel span{color:var(--primary)}.bg-swatch-img,.bg-swatch-plain,.bg-swatch-blur{width:100%;aspect-ratio:16 / 10;border-radius:12px;border:2px solid var(--border);object-fit:cover;display:grid;place-items:center;color:var(--text);transition:border-color .15s}.bg-swatch-plain{background:var(--panel-2)}.bg-swatch-blur{background:linear-gradient(135deg,var(--panel-2),var(--border));filter:blur(0)}.bg-swatch.sel .bg-swatch-img,.bg-swatch.sel .bg-swatch-plain,.bg-swatch.sel .bg-swatch-blur{border-color:var(--primary)}.bg-check{position:absolute;top:6px;right:6px;background:var(--primary);color:#fff;border-radius:50%;padding:2px}.bg-swatch.upload .bg-swatch-plain{border-style:dashed;color:var(--muted)}@media (max-width: 720px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;grid-template-rows:none}.chat,.bg-panel{position:absolute;right:0;top:0;bottom:0;z-index:20;box-shadow:var(--shadow)}.ctrl{min-width:60px;padding:9px 11px}.ctrl span{font-size:10px}}