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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
    transition: background 0.8s ease;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
}

/* Fallback gradients - only used if images fail to load */
body.early-morning:not([style*="background-image"]) {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
}

body.sunrise:not([style*="background-image"]) {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 25%, #fecfef 50%, #f093fb 75%, #ff9a9e 100%);
}

body.morning:not([style*="background-image"]) {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 25%, #ffd89b 50%, #19547b 75%, #a8edea 100%);
}

body.midday:not([style*="background-image"]) {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #667eea 75%, #764ba2 100%);
}

body.afternoon:not([style*="background-image"]) {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 25%, #ff8a80 50%, #ff7043 75%, #ffecd2 100%);
}

body.sunset:not([style*="background-image"]) {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 25%, #fa709a 50%, #fee140 75%, #fa709a 100%);
}

body.twilight:not([style*="background-image"]) {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 25%, #667eea 50%, #764ba2 75%, #4facfe 100%);
}

body.night:not([style*="background-image"]) {
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 25%, #16213e 50%, #0f3460 75%, #0c0c0c 100%);
}

body.late-night:not([style*="background-image"]) {
    background: linear-gradient(135deg, #000000 0%, #0f0f23 25%, #1a1a2e 50%, #16213e 75%, #000000 100%);
}

/* Adjust header text color for dark backgrounds */
body.night header,
body.late-night header,
body.early-morning header {
    color: white;
}

body.night header h1,
body.late-night header h1,
body.early-morning header h1 {
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* Default light header for day backgrounds */
body.sunrise header,
body.morning header,
body.midday header,
body.afternoon header,
body.sunset header,
body.twilight header {
    color: white;
}

body.sunrise header h1,
body.morning header h1,
body.midday header h1,
body.afternoon header h1,
body.sunset header h1,
body.twilight header h1 {
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 15px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 25px;
    color: white; /* Default color, overridden by time-based classes */
    transition: color 0.5s ease;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: text-shadow 0.5s ease;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.search-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 12px;
    margin-bottom: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.search-container {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    justify-content: center;
}

.location-display {
    flex: 1;
    text-align: center;
    min-height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.location-display:hover {
    opacity: 0.8;
    transform: scale(1.02);
}

.loading-spinner {
    display: flex;
    align-items: center;
    gap: 10px;
}

.loading-spinner span {
    color: #666;
    font-size: 0.9rem;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.location-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 500;
}

.coordinates {
    font-size: 0.9rem;
    color: #666;
    margin-top: 8px;
    text-align: center;
}

.current-date {
    text-align: center;
    margin-bottom: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #555;
}

.city-info {
    font-size: 1rem;
    color: #444;
    margin: 8px 0 5px 0;
    font-weight: 500;
}

.location-controls {
    margin-top: 30px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.controls-title {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
}

.location-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.location-search {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid rgba(103, 126, 234, 0.5);
    border-radius: 25px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.95);
    outline: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.location-search:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(103, 126, 234, 0.15), 0 4px 12px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 1);
}

.coordinate-hint {
    margin-top: 10px;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 10px;
    font-size: 0.85rem;
    color: #666;
    text-align: center;
    border-left: 3px solid #667eea;
}

.sun-times-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 15px;
}

.sun-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sun-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.sun-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.sun-card h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.time {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.countdown {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.additional-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.info-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.info-card h3 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #666;
    margin-bottom: 6px;
}

.info-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
}

.date-info {
    text-align: center;
    margin-bottom: 15px;
}

.date-info p {
    color: #333;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

footer {
    text-align: center;
    margin-top: 25px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.8rem;
    transition: color 0.5s ease;
}

footer a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: border-color 0.3s ease;
}

footer a:hover {
    border-color: rgba(255, 255, 255, 0.8);
}

/* Darker footer text for very light backgrounds */
body.morning footer,
body.midday footer {
    color: rgba(0, 0, 0, 0.7);
}

body.morning footer a,
body.midday footer a {
    color: rgba(0, 0, 0, 0.8);
    border-bottom-color: rgba(0, 0, 0, 0.3);
}

body.morning footer a:hover,
body.midday footer a:hover {
    border-color: rgba(0, 0, 0, 0.6);
}

.error-message {
    background: #ff6b6b;
    color: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 500;
}

.retry-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    margin-top: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.retry-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .sun-times-container {
        grid-template-columns: 1fr;
    }
    
    .additional-info {
        grid-template-columns: 1fr;
    }
    
    .time {
        font-size: 2rem;
    }
    
    .location-options {
        width: 100%;
    }
    
    .search-container {
        width: 100%;
        max-width: none;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .sun-card {
        padding: 20px;
    }
    
    .time {
        font-size: 1.8rem;
    }
}