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

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.container {
    text-align: center;
    max-width: 1200px;
    width: 100%;
    padding: 2rem;
}

h1 {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

.time-grid {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
    justify-content: center;
}

.four-cards {
    grid-template-columns: repeat(4, 1fr);
}

.three-cards {
    grid-template-columns: repeat(3, 1fr);
    max-width: 900px;
    margin: 2rem auto 0;
}

@media (max-width: 1200px) {
    .four-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .three-cards {
        grid-template-columns: repeat(2, 1fr);
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .four-cards,
    .three-cards {
        grid-template-columns: 1fr;
        max-width: 300px;
    }
}

.time-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 3rem 2rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.time-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.time-card h2 {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.time {
    font-size: 3.5rem;
    font-weight: 200;
    margin: 1rem 0;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

.location {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 1rem;
}

.slider-container {
    margin-top: 3rem;
    text-align: center;
}

.slider-container label {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

#timeSlider {
    width: 100%;
    max-width: 600px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    outline: none;
    -webkit-appearance: none;
    margin-bottom: 1rem;
}

#timeSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
}

#timeSlider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

#timeSlider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.slider-value {
    font-size: 1.2rem;
    font-weight: 300;
    opacity: 0.9;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .time {
        font-size: 2.5rem;
    }
    
    .time-card {
        padding: 2rem 1.5rem;
    }
    
    .icon {
        font-size: 2.5rem;
    }
}