/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --text-color: #eee;
    --text-secondary: #ccc;
    --success-color: #00ff00;
    --warning-color: #ffff00;
    --danger-color: #ff0000;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #00d4ff, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.star-icon {
    display: inline-block;
    animation: twinkle 2s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Search Section */
.search-section {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
}

.search-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-button {
    flex: 1;
    padding: 12px 20px;
    background: var(--accent-color);
    color: var(--text-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}

.tab-button:hover {
    background: var(--highlight-color);
}

.tab-button.active {
    background: var(--highlight-color);
    font-weight: 600;
}

.search-form {
    display: none;
}

.search-form.active {
    display: block;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.search-input {
    width: 100%;
    padding: 15px;
    background: var(--accent-color);
    border: 2px solid transparent;
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1rem;
    transition: var(--transition);
    min-height: 48px; /* Touch-friendly minimum */
}

.search-input:focus {
    outline: none;
    border-color: var(--highlight-color);
    background: var(--primary-color);
}

.search-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.coordinates-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.search-button {
    width: 100%;
    padding: 15px;
    background: var(--highlight-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px; /* Touch-friendly minimum */
}

.search-button:hover {
    background: #d63651;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(233, 69, 96, 0.3);
}

.search-button:active {
    transform: translateY(0);
}

.search-icon {
    font-size: 1.2rem;
}

/* Loading Indicator */
.loading-indicator {
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--highlight-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Error Message */
.error-message {
    background: rgba(255, 0, 0, 0.1);
    border: 2px solid var(--danger-color);
    color: var(--danger-color);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    text-align: center;
}

/* Results Section */
.results-section {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.location-info {
    background: var(--secondary-color);
    padding: 25px;
    border-radius: var(--border-radius);
    margin-bottom: 25px;
    text-align: center;
    box-shadow: var(--box-shadow);
}

.location-info h2 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: #00d4ff;
}

.location-info p {
    color: var(--text-secondary);
}

/* Summary Card */
.summary-card {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.summary-item {
    background: var(--secondary-color);
    padding: 25px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
}

.summary-item h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.quality-badge {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 25px;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.summary-score {
    font-size: 2rem;
    font-weight: 700;
    color: #00d4ff;
}

.summary-value {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-color);
}

.best-time {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    border: 2px solid var(--highlight-color);
}

/* Moon Phase Card */
.moon-card {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
    border: 2px solid #4a5568;
}

.moon-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #ffd700;
    text-align: center;
}

.moon-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 30px;
    align-items: center;
}

.moon-icon {
    font-size: 5rem;
    text-align: center;
}

.moon-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.moon-phase, .moon-illumination, .moon-impact {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.moon-label {
    color: var(--text-secondary);
    font-weight: 600;
}

.moon-value {
    color: var(--text-color);
    font-weight: 700;
}

.moon-recommendation {
    margin-top: 10px;
    padding: 15px;
    background: rgba(255, 215, 0, 0.1);
    border-left: 4px solid #ffd700;
    border-radius: 4px;
}

.moon-recommendation p {
    color: var(--text-color);
    font-size: 0.95rem;
    margin: 0;
}

/* Astronomical Events */
.events-container {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
}

.events-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #00d4ff;
    text-align: center;
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.events-loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.event-card {
    background: var(--accent-color);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid;
    transition: var(--transition);
}

.event-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.event-card.iss {
    border-left-color: #4facfe;
}

.event-card.meteor {
    border-left-color: #ffd700;
}

.event-card.moon {
    border-left-color: #ffd700;
}

.event-card.solar {
    border-left-color: #ff6b6b;
}

.event-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.event-icon {
    font-size: 2rem;
}

.event-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
}

.event-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.event-detail-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.event-detail-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.event-detail-value {
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.event-description {
    margin-top: 12px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.event-countdown {
    display: inline-block;
    background: var(--highlight-color);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 8px;
}

/* Hourly Forecast */
.forecast-container {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
}

.forecast-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.forecast-title {
    font-size: 1.5rem;
    color: #00d4ff;
    margin: 0;
}

.toggle-button {
    padding: 10px 20px;
    background: var(--highlight-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.toggle-button:hover {
    background: #d63651;
    transform: translateY(-2px);
}

.hourly-forecast {
    display: grid;
    gap: 15px;
}

/* Multi-Day Forecast */
.multi-day-forecast {
    display: grid;
    gap: 25px;
}

.night-card {
    background: var(--accent-color);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--highlight-color);
}

.night-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.night-date {
    font-size: 1.3rem;
    font-weight: 700;
    color: #00d4ff;
}

.night-moon {
    display: flex;
    align-items: center;
    gap: 10px;
}

.night-moon-emoji {
    font-size: 2rem;
}

.night-moon-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.night-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
}

.night-summary-item {
    text-align: center;
}

.night-summary-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.night-summary-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
}

.night-hourly {
    display: grid;
    gap: 10px;
}

.forecast-item {
    background: var(--accent-color);
    padding: 20px;
    border-radius: 8px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 20px;
    align-items: center;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.forecast-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.forecast-time {
    text-align: center;
    min-width: 80px;
}

.forecast-time .time {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-color);
}

.forecast-time .weather-icon {
    font-size: 2rem;
    margin-top: 5px;
}

.forecast-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
}

.detail-item {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 3px;
}

.detail-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
}

.forecast-score {
    text-align: center;
    min-width: 100px;
}

.score-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.score-rating {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Legend */
.legend {
    background: var(--secondary-color);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
}

.legend h4 {
    margin-bottom: 15px;
    color: #00d4ff;
    text-align: center;
}

.legend-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.legend-color {
    width: 30px;
    height: 30px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .header {
        padding: 25px 15px;
    }

    .logo {
        font-size: 1.8rem;
    }

    .tagline {
        font-size: 0.95rem;
    }

    .search-section {
        padding: 20px 15px;
    }

    .coordinates-inputs {
        grid-template-columns: 1fr;
    }

    .summary-card {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .summary-item {
        padding: 20px;
    }

    .moon-card {
        padding: 20px;
    }

    .moon-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }

    .moon-icon {
        font-size: 3.5rem;
    }

    .moon-phase, .moon-illumination, .moon-impact {
        flex-direction: column;
        text-align: center;
        gap: 5px;
    }

    .forecast-container {
        padding: 20px 15px;
    }

    .forecast-header {
        flex-direction: column;
        align-items: stretch;
    }

    .forecast-title {
        text-align: center;
        font-size: 1.3rem;
    }

    .toggle-button {
        width: 100%;
        padding: 12px;
    }

    .forecast-item {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 15px;
    }

    .forecast-time {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }

    .forecast-details {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .detail-item {
        text-align: center;
    }

    .forecast-score {
        min-width: auto;
        text-align: center;
    }

    .score-circle {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
        margin: 0 auto;
    }

    .night-summary {
        grid-template-columns: 1fr 1fr;
    }

    .events-container {
        padding: 20px 15px;
    }

    .events-title {
        font-size: 1.3rem;
    }

    .events-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .event-card {
        padding: 15px;
    }

    .event-detail-row {
        flex-direction: column;
        gap: 4px;
        text-align: left;
    }

    .legend {
        padding: 20px 15px;
    }

    .legend-items {
        grid-template-columns: 1fr;
    }
}

/* Extra small phones (iPhone SE, older Android) */
@media (max-width: 380px) {
    .logo {
        font-size: 1.5rem;
    }

    .summary-score {
        font-size: 1.5rem;
    }

    .summary-value {
        font-size: 1.5rem;
    }

    .moon-icon {
        font-size: 3rem;
    }

    .forecast-details {
        grid-template-columns: 1fr;
    }

    .detail-value {
        font-size: 1rem;
    }

    .night-summary {
        grid-template-columns: 1fr;
    }
}

/* Landscape mode on phones */
@media (max-height: 500px) and (orientation: landscape) {
    .header {
        padding: 15px;
    }

    .search-section {
        padding: 15px;
    }

    .summary-card {
        grid-template-columns: repeat(3, 1fr);
    }

    .events-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }

    .forecast-details {
        grid-template-columns: 1fr 1fr;
    }

    .detail-value {
        font-size: 1rem;
    }
}