:root {
    --bg: #1a1a1a;
    --panel-bg: #2a2a2a;
    --text: #ffffff;
    --primary: #4ade80;
    --primary-hover: #22c55e;
    --secondary: #60a5fa;
    --danger: #ef4444;
    --border: #404040;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 20px;
}
.container {
    max-width: 900px;
    margin: 0 auto;
}
header {
    text-align: center;
    margin-bottom: 30px;
}
h1 { margin: 0 0 10px 0; }
.panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}
@media (max-width: 768px) {
    .panels { grid-template-columns: 1fr; }
}
.panel {
    background: var(--panel-bg);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
}
.btn {
    padding: 10px 16px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    width: 100%;
    margin-bottom: 10px;
    color: white;
}
.btn.primary { background: var(--primary); color: #000; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.secondary { background: var(--secondary); color: #000; }
.btn.danger { background: var(--danger); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
#qr-canvas {
    background: white;
    padding: 10px;
    border-radius: 8px;
    margin: 0 auto;
    display: block;
}
.messages-box {
    height: 200px;
    background: #111;
    border-radius: 8px;
    padding: 10px;
    overflow-y: auto;
    margin-bottom: 10px;
    font-family: monospace;
    font-size: 13px;
}
.input-group {
    display: flex;
    gap: 10px;
}
.input-group input {
    flex: 1;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: #111;
    color: white;
}
.input-group .btn { width: auto; margin: 0; }
#connection-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    margin-top: 10px;
}
.status-disconnected { background: #fee2e2; color: #991b1b; }
.status-connected { background: #dcfce7; color: #166534; }
.status-connecting { background: #fef9c3; color: #854d0e; }

/* Diagnostic additions */
.diagnostics-box {
    height: 200px;
    background: #000;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.8);
    border-radius: 8px;
    padding: 10px;
    overflow-y: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    color: #4ade80;
    margin-bottom: 15px;
}
.diag-info { color: #a1a1aa; }
.diag-warn { color: #facc15; }
.diag-error { color: #ef4444; }
.diag-success { color: #4ade80; }
.diag-ice { color: #60a5fa; }

.badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: bold;
    margin-right: 6px;
    color: #000;
}
.badge-host { background: #94a3b8; }
.badge-srflx { background: #38bdf8; }
.badge-turn { background: #c084fc; }

.ice-servers-list ul {
    list-style-type: none;
    padding-left: 0;
    margin: 5px 0 15px 0;
    font-family: monospace;
    font-size: 13px;
    color: #a1a1aa;
}
.ice-servers-list li::before {
    content: "📡 ";
}


/* QR Canvas Adjustments */
#qr-canvas, video, img {
  max-width: 100%;
  border-radius: 8px;
}