* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --text-primary: #000000;
    --text-secondary: rgba(0, 0, 0, 0.6);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f5f5f5;
    min-height: 100vh;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.container {
    background: #ffffff;
    padding: 3rem 4rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
    max-width: 600px;
    width: 100%;
}

.content {
    animation: fadeIn 1s ease-in;
}

.greeting {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 300;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    animation: slideDown 0.8s ease-out;
}

.time {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
    animation: slideUp 0.8s ease-out 0.2s both;
}

.date {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    animation: slideUp 0.8s ease-out 0.4s both;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Responsive adjustments */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    
    .container {
        padding: 2rem 2.5rem;
    }
    
    .greeting {
        margin-bottom: 1rem;
    }
    
    .time {
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0.5rem;
    }
    
    .container {
        padding: 1.5rem 2rem;
        border-radius: 12px;
    }
}