:root{--text:#4b5563;--text-h:#111827;--bg:#fff;--surface:#f9fafb;--border:#e5e7eb;--accent:#4f46e5;--accent-text:#fff;--danger:#dc2626;--error-bg:#fef2f2;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font:16px/1.5 system-ui,Segoe UI,Roboto,sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#d1d5db;--text-h:#f9fafb;--bg:#111827;--surface:#1f2937;--border:#374151;--accent:#818cf8;--accent-text:#111827;--danger:#f87171;--error-bg:#3f1d1d}}*{box-sizing:border-box}body{margin:0}#root{flex-direction:column;min-height:100svh;display:flex}h1,h2{color:var(--text-h);margin:0 0 12px;font-weight:600}h1{font-size:1.5rem}h2{margin-top:24px;font-size:1.1rem}.screen{width:100%;max-width:480px;padding:24px 20px calc(24px + env(safe-area-inset-bottom));flex-direction:column;flex:1;margin:0 auto;display:flex}form{flex-direction:column;gap:16px;display:flex}label{color:var(--text);flex-direction:column;gap:6px;font-size:.9rem;display:flex}input{border:1px solid var(--border);background:var(--surface);color:var(--text-h);border-radius:10px;padding:12px 14px;font-size:1rem}input:focus{outline:2px solid var(--accent);outline-offset:1px}button{cursor:pointer;border:none;border-radius:10px;padding:14px 16px;font-size:1rem;font-weight:600}button.primary{background:var(--accent);color:var(--accent-text)}button.secondary{background:var(--surface);color:var(--text-h);border:1px solid var(--border);margin-top:24px}button.danger{color:var(--danger);border:1px solid var(--danger);background:0 0;padding:8px 12px;font-size:.85rem}button:disabled{opacity:.6;cursor:not-allowed}.hint{margin-top:16px;font-size:.9rem}.hint a{color:var(--accent)}.error{background:var(--error-bg);color:var(--danger);border-radius:8px;margin:0;padding:10px 12px;font-size:.9rem}.account-id{letter-spacing:2px;text-align:center;background:var(--surface);color:var(--text-h);border-radius:12px;margin:16px 0 24px;padding:20px;font-size:2rem;font-weight:700}.device-list{flex-direction:column;gap:10px;margin:0 0 16px;padding:0;list-style:none;display:flex}.device-list li{background:var(--surface);border:1px solid var(--border);color:var(--text-h);border-radius:10px;justify-content:space-between;align-items:center;padding:12px 14px;font-size:.9rem;display:flex}.device-list small{color:var(--text)}.chat-screen{height:100svh;padding-left:0;padding-right:0}.chat-header{align-items:center;gap:12px;padding:0 20px;display:flex}.chat-header h1{margin:0}.link-back{color:var(--text-h);background:0 0;border:none;padding:4px 8px;font-size:1.3rem}.message-list{flex-direction:column;flex:1;gap:8px;padding:16px 20px;display:flex;overflow-y:auto}.bubble{word-break:break-word;border-radius:16px;max-width:75%;padding:10px 14px;font-size:.95rem}.bubble.out{background:var(--accent);color:var(--accent-text);border-bottom-right-radius:4px;align-self:flex-end}.bubble.in{background:var(--surface);color:var(--text-h);border:1px solid var(--border);border-bottom-left-radius:4px;align-self:flex-start}.chat-input{padding:12px 20px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--border);gap:8px;display:flex}.chat-input input{flex:1}.chat-input button{padding:12px 20px}.call-screen{color:#f9fafb;background:#0b0b0f;justify-content:space-between;height:100svh;padding-left:0;padding-right:0}.call-status{text-align:center;padding:24px 20px 0;font-size:1.1rem}.video-area{flex:1;margin:16px 0;position:relative}.remote-video{object-fit:cover;background:#1f2937;width:100%;height:100%}.local-video{object-fit:cover;background:#374151;border:2px solid #fff6;border-radius:12px;width:30%;max-width:140px;position:absolute;bottom:16px;right:16px}.call-controls{padding:20px 20px calc(20px + env(safe-area-inset-bottom));justify-content:center;gap:16px;display:flex}.call-controls button{min-width:120px}.call-ended{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:20px;padding:20px;display:flex}