:root {
            --bg-main: #161618;
            --bg-card: #202024;
            --border: #2e2e32;
            --text-primary: #f4f4f5;
            --text-secondary: #a1a1aa;
            --accent: #06b6d4;
            --accent-hover: #0891b2;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
            --input-bg: #141415;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        
        body {
            font-family: 'Vazirmatn', system-ui, sans-serif;
            background-color: var(--bg-main);
            color: var(--text-primary);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 24px 16px;
        }

        .container {
            width: 100%;
            max-width: 520px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        header {
            text-align: center;
            margin-bottom: 8px;
        }
        
        .logo-badge {
            display: inline-flex;
            background: rgba(6, 182, 212, 0.05);
            border: 1px solid rgba(6, 182, 212, 0.2);
            padding: 4px 16px;
            border-radius: 9999px;
            font-size: 0.8rem;
            color: var(--accent);
            font-family: 'JetBrains Mono', monospace;
            margin-bottom: 12px;
            font-weight: 600;
        }

        h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 6px; }
        p.subtitle { color: var(--text-secondary); font-size: 0.85rem; }

        .card {
            background-color: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 20px 24px;
        }

        .conn-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .room-details { flex: 1; }
        
        .status-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--warning);
        }
        
        .status-dot.online { background: var(--success); box-shadow: 0 0 8px var(--success); }
        .status-dot.error { background: var(--danger); box-shadow: 0 0 8px var(--danger); }

        .room-code {
            font-family: 'JetBrains Mono', monospace;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 2px;
            background: var(--input-bg);
            padding: 10px 16px;
            border-radius: 8px;
            border: 1px solid var(--border);
            display: inline-block;
            margin: 12px 0;
            cursor: pointer;
            transition: border-color 0.2s;
        }
        
        .room-code:hover { border-color: var(--accent); }
        
        #qrcode {
            background: #fff;
            padding: 8px;
            border-radius: 8px;
            width: 96px;
            height: 96px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hint { font-size: 0.75rem; color: var(--text-secondary); }

        .manual-join {
            display: flex;
            gap: 10px;
            margin-top: 12px;
        }
        
        .manual-join input {
            flex: 1;
            background: var(--input-bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 12px;
            color: #fff;
            font-family: 'JetBrains Mono', monospace;
            text-align: center;
            font-size: 0.9rem;
        }
        
        .manual-join input:focus { outline: none; border-color: var(--accent); }
        
        .manual-join button {
            background: #3f3f46;
            color: #fff;
            border: none;
            padding: 0 20px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-family: inherit;
        }
        
        .manual-join button:hover { background: #52525b; }

        .card-title {
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .file-zone {
            border: 1px dashed var(--border);
            border-radius: 8px;
            padding: 24px;
            text-align: center;
            background: var(--input-bg);
            cursor: pointer;
            display: block;
            transition: border-color 0.2s;
        }
        
        .file-zone:hover { border-color: var(--text-secondary); }
        .file-zone input { display: none; }

        .btn {
            width: 100%;
            font-family: inherit;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            padding: 14px;
            border-radius: 8px;
            cursor: pointer;
            margin-top: 16px;
            transition: background 0.2s;
        }
        
        .btn-primary { background: #3f3f46; color: #fff; }
        .btn-primary:hover:not(:disabled) { background: #52525b; }
        .btn-primary:disabled { background: #27272a; color: #52525b; cursor: not-allowed; }
        
        .btn-success { background: var(--success); color: #052e16; text-decoration: none; display: inline-block; text-align: center; }
        
        .consent-box { background: rgba(239, 68, 68, 0.1); border: 1px solid var(--danger); border-radius: 8px; padding: 14px; margin-top: 12px; display: none; }
        .btn-group { display: flex; gap: 8px; margin-top: 10px; }
        .btn-group button { flex: 1; padding: 10px; border-radius: 6px; border: none; font-weight: 600; cursor: pointer; font-family: inherit; }
        .btn-accept { background: var(--success); color: #052e16; }
        .btn-reject { background: #3f3f46; color: #fff; }

        .progress-bar-bg { width: 100%; height: 6px; background: var(--input-bg); border-radius: 9999px; overflow: hidden; margin-top: 10px; border: 1px solid var(--border); }
        .progress-bar-fill { height: 100%; width: 0%; background: var(--accent); transition: width 0.1s linear; }

        footer {
            margin-top: 24px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-family: 'JetBrains Mono', monospace;
        }
        
        footer .cyan-text { color: var(--accent); font-weight: bold; }