.clock-card {
            background: linear-gradient(145deg, #fafcff 0%, #f0f4fa 100%);
            border-radius: 2rem;
            padding: 1.5rem;
            box-shadow: 0 12px 28px rgba(0,0,0,0.08);
        }
        .analog-container {
            display: flex;
            justify-content: center;
            margin-bottom: 1.5rem;
        }
        canvas#analogCanvas {
            background: white;
            border-radius: 50%;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            width: 100%;
            height: auto;
            max-width: 260px;
            border: 1px solid rgba(70,130,180,0.3);
        }
        .digital-time {
            font-family: 'Courier New', 'SF Mono', 'Fira Code', monospace;
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: 2px;
            background: #0a1e2c;
            color: #5fdc7a;
            padding: 0.75rem 1.2rem;
            border-radius: 60px;
            text-align: center;
            box-shadow: inset 0 0 5px #00000020, 0 4px 8px rgba(0,0,0,0.1);
        }
        .date-full {
            font-size: 1.2rem;
            background: #eef2f8;
            border-radius: 40px;
            padding: 0.4rem 1rem;
            display: inline-block;
        }
        .timezone-selector {
            max-width: 320px;
            margin: 0 auto;
        }
        .sync-status {
            font-size: 0.75rem;
            border-top: 1px dashed #ccc;
            padding-top: 0.6rem;
            margin-top: 0.8rem;
        }
        .world-time-grid {
            background: white;
            border-radius: 1rem;
            padding: 1rem;
            margin-top: 1.5rem;
        }
        .city-time {
            font-family: monospace;
            font-weight: 600;
        }
        @media (max-width: 576px) {
            .digital-time { font-size: 1.6rem; }
        }
        .badge-ntp {
            background: #1e4668;
            color: #cae3ff;
        }
        .refresh-note {
            font-size: 0.7rem;
            color: #4a627a;
        }
        .accuracy-card {
            background: #f4f9fe;
            border-left: 5px solid #2c7da0;
        }
        .expert-note {
            background: #eef2fa;
            border-radius: 12px;
            padding: 0.8rem 1rem;
            font-size: 0.9rem;
        }
        .source-note {
            background: #e9ecef;
            border-radius: 8px;
            padding: 0.5rem 1rem;
            font-size: 0.8rem;
        }