body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #2c3e50;
    color: white;
    margin: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.container {
    padding: 2rem;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

h1 {
    margin-bottom: 2rem;
    font-size: 2.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.time-block {
    position: relative;
}

.number {
    display: inline-block;
    font-size: 3.5rem;
    font-weight: bold;
    min-width: 80px;
    padding: 1rem;
    background: #34495e;
    border-radius: 10px;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    transform-style: preserve-3d;
}

.label {
    display: block;
    font-size: 1.2rem;
    margin-top: 0.5rem;
    color: #bdc3c7;
}

.note {
    margin-top: 2rem;
    color: #95a5a6;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .number {
        font-size: 2rem;
        min-width: 60px;
        padding: 0.5rem;
    }
    h1 {
        font-size: 2rem;
    }
}