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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #fdfcfb 0%, #f5f0e8 50%, #fff9f0 100%);
    min-height: 100vh;
    padding: 20px;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    margin-bottom: 30px;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.3);
}

.live-badge {
    background: #ff4444;
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 15px;
    animation: pulse 2s infinite;
    box-shadow: 0 4px 15px rgba(255, 68, 68, 0.4);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

h1 {
    font-size: 36px;
    margin-bottom: 12px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
    font-weight: 700;
}

.subtitle {
    font-size: 18px;
    opacity: 0.95;
    margin-bottom: 8px;
    font-weight: 300;
}

.last-updated {
    font-size: 14px;
    opacity: 0.85;
    font-style: italic;
    font-weight: 300;
}

.aqi-card {
    background: linear-gradient(135deg, #ffffff 0%, #fef9f3 100%);
    border-radius: 24px;
    padding: 50px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 15px 50px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.8);
}

.aqi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.aqi-main {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 40px;
    margin-bottom: 40px;
    align-items: center;
}

.live-indicator {
    color: #ff4444;
    font-size: 14px;
    margin-bottom: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.aqi-number {
    font-size: 120px;
    font-weight: 800;
    color: #ff6b35;
    line-height: 1;
    text-shadow: 2px 2px 8px rgba(255, 107, 53, 0.2);
}

.aqi-unit {
    color: #666;
    font-size: 14px;
    margin-top: 5px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-label {
    font-size: 14px;
    color: #888;
    margin-bottom: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.category-value {
    font-size: 48px;
    font-weight: 800;
    color: #ff6b35;
    text-shadow: 2px 2px 8px rgba(255, 107, 53, 0.2);
    line-height: 1.2;
}

.weather-section {
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.weather-icon {
    font-size: 60px;
    margin-bottom: 10px;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.1));
}

.temperature {
    font-size: 36px;
    font-weight: 700;
    color: #2d3748;
}

.weather-condition {
    color: #718096;
    margin-top: 5px;
    font-weight: 500;
}

.refresh-btn {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    cursor: pointer;
    transition: all 0.3s;
    color: white;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.refresh-btn:hover {
    transform: rotate(180deg) scale(1.1);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.pollutant-info {
    display: flex;
    gap: 50px;
    margin-bottom: 40px;
    font-size: 18px;
    padding: 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.pollutant-item {
    flex: 1;
}

.pollutant-label {
    font-weight: 700;
    color: #2d3748;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pollutant-value {
    color: #ff6b35;
    font-weight: 800;
    font-size: 22px;
}

.aqi-scale {
    margin-bottom: 40px;
    padding: 25px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.scale-labels {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #4a5568;
    margin-bottom: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.scale-bar {
    display: flex;
    height: 24px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.scale-segment {
    flex: 1;
}

.scale-segment.good { background: #00e400; }
.scale-segment.moderate { background: #ffff00; }
.scale-segment.poor { background: #ff7e00; }
.scale-segment.unhealthy { background: #ff0000; }
.scale-segment.severe { background: #8f3f97; }
.scale-segment.hazardous { background: #7e0023; }

.scale-values {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #718096;
    font-weight: 600;
}

.weather-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    padding: 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.detail-icon {
    font-size: 28px;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.1));
}

.detail-label {
    font-size: 12px;
    color: #718096;
    margin-right: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-weight: 700;
    color: #2d3748;
    font-size: 18px;
}

.mascot {
    position: absolute;
    right: 40px;
    bottom: 20px;
    opacity: 0.8;
}

.mascot img {
    width: 120px;
    height: auto;
    filter: drop-shadow(4px 4px 8px rgba(0,0,0,0.15));
}

.chart-section {
    background: linear-gradient(135deg, #ffffff 0%, #fef9f3 100%);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 15px 50px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.8);
}

.chart-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.location-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 24px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.location-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.min-max {
    display: flex;
    gap: 20px;
}

.stat-box {
    padding: 20px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    transition: all 0.3s;
}

.stat-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.stat-box.min {
    background: linear-gradient(135deg, #ffa726 0%, #ff9800 100%);
}

.stat-box.max {
    background: linear-gradient(135deg, #e53935 0%, #d32f2f 100%);
}

.stat-value {
    font-size: 36px;
    font-weight: 800;
    color: white;
    margin-bottom: 8px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.stat-label {
    font-size: 12px;
    color: white;
    line-height: 1.5;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#aqiChart {
    height: 300px !important;
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 20px 15px;
        max-width: 100%;
    }
    
    h1 {
        font-size: 24px;
        margin-bottom: 15px;
    }
    
    .subtitle {
        font-size: 14px;
    }
    
    .last-updated {
        font-size: 12px;
    }
    
    .aqi-card {
        padding: 25px 20px;
        margin-bottom: 20px;
    }
    
    .aqi-main {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
        margin-bottom: 25px;
    }
    
    .aqi-number {
        font-size: 72px;
    }
    
    .category-value {
        font-size: 28px;
    }
    
    .weather-section {
        padding: 15px;
    }
    
    .weather-icon {
        font-size: 48px;
    }
    
    .temperature {
        font-size: 28px;
    }
    
    .refresh-btn {
        width: 48px;
        height: 48px;
        font-size: 24px;
        margin: 0 auto;
    }
    
    .pollutant-info {
        flex-direction: column;
        gap: 15px;
        padding: 20px 15px;
    }
    
    .pollutant-value {
        font-size: 18px;
    }
    
    .aqi-scale {
        padding: 20px 15px;
    }
    
    .weather-details {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 12px;
        padding: 20px 15px;
    }
    
    .detail-item {
        padding: 8px;
        gap: 8px;
    }
    
    .detail-icon {
        font-size: 22px;
    }
    
    .detail-value {
        font-size: 16px;
    }
    
    .mascot {
        display: none;
    }
    
    .chart-section {
        padding: 25px 20px;
    }
    
    .chart-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .location-btn {
        width: 100%;
        padding: 14px 20px;
    }
    
    .min-max {
        flex-direction: row;
        gap: 10px;
        width: 100%;
    }
    
    .stat-box {
        flex: 1;
        padding: 15px 20px;
    }
    
    .stat-value {
        font-size: 28px;
    }
    
    .stat-label {
        font-size: 11px;
    }
    
    #aqiChart {
        height: 250px !important;
    }
}

/* Extra Small Mobile Devices */
@media (max-width: 480px) {
    body {
        padding: 5px;
    }
    
    .container {
        padding: 15px 10px;
        border-radius: 15px;
    }
    
    h1 {
        font-size: 20px;
    }
    
    .aqi-card {
        padding: 20px 15px;
    }
    
    .aqi-number {
        font-size: 56px;
    }
    
    .category-value {
        font-size: 24px;
    }
    
    .weather-details {
        grid-template-columns: 1fr;
    }
    
    .pollutant-info {
        padding: 15px 10px;
    }
    
    .chart-section {
        padding: 20px 15px;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    #aqiChart {
        height: 200px !important;
    }
}