*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a2e;--bg-card: #16213e;--bg-input: #1a1a2e;--text-primary: #e0e0e0;--text-secondary: #a0a0a0;--accent: #e94560;--accent-hover: #ff6b81;--success: #4ecca3;--warning: #f0a500;--border: #2a2a4a;--shadow: rgba(0, 0, 0, .3)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}button{cursor:pointer;border:none;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:background-color .2s,opacity .2s}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--accent-hover)}.btn-secondary{background-color:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background-color:var(--bg-secondary)}.btn-success{background-color:var(--success);color:#0f0f0f}input,textarea{background-color:var(--bg-input);border:1px solid var(--border);border-radius:6px;padding:8px 12px;color:var(--text-primary);font-size:14px;outline:none;transition:border-color .2s}input:focus,textarea:focus{border-color:var(--accent)}@media (max-width: 768px){.room-layout{flex-direction:column!important;height:auto!important}.room-sidebar{width:100%!important;max-height:50vh}.room-video{min-height:200px!important}}