:root {
    --bg-dark: #101419;
    --bg-card: #1A202C;
    --text-primary: #F7FAFC;
    --text-secondary: #A0AEC0;
    --accent-blue: #4F46E5;
}

body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
}

.main-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.header h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.header .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin: 0;
}

.header .status {
    margin-top: 2rem;
    display: inline-block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-blue);
    border: 2px solid var(--accent-blue);
    padding: 0.5rem 2rem;
    border-radius: 50px;
    letter-spacing: 3px;
}

.world-clocks {
    margin-top: 4rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.clock-card {
    background-color: var(--bg-card);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    min-width: 180px; /* Sedikit dilebarkan untuk tampilan lebih baik */
    border: 1px solid #2D3748;
}

.city-name {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.gmt-offset {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.time {
    font-size: 2.5rem;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--text-primary);
    /* Menerapkan font monospace agar jam tidak bergerak */
    font-family: 'Roboto Mono', monospace; 
}