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

:root {
    /* User-specified color palette - Olive Green and Maroon */
    --primary-olive: #556B2F;
    --primary-maroon: #800020;
    --olive-light: #6B8E23;
    --maroon-light: #A0293A;
    
    /* Neutral colors for dashboard */
    --bg-primary: #0F1419;
    --bg-secondary: #1A1F2E;
    --bg-card: #1E2433;
    --bg-hover: #252B3B;
    
    /* Text colors */
    --text-primary: #E8EAED;
    --text-secondary: #9AA0A6;
    --text-muted: #6B7280;
    
    /* Accent colors for categories */
    --accent-breaking: #EF4444;
    --accent-politics: var(--primary-maroon);
    --accent-weather: #3B82F6;
    --accent-business: var(--primary-olive);
    --accent-security: #F59E0B;
    
    /* Status colors */
    --status-high: #EF4444;
    --status-medium: #F59E0B;
    --status-low: #10B981;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles */
.header {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--primary-olive);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-olive);
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-olive) 0%, var(--primary-maroon) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-meta {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.date, .time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.date i, .time i {
    width: 18px;
    height: 18px;
    color: var(--primary-olive);
}

/* Main Content */
.main {
    padding: var(--spacing-xl) 0;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-olive);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon i {
    width: 28px;
    height: 28px;
}

.stat-icon.breaking {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-breaking);
}

.stat-icon.politics {
    background: rgba(128, 0, 32, 0.15);
    color: var(--accent-politics);
}

.stat-icon.weather {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-weather);
}

.stat-icon.business {
    background: rgba(85, 107, 47, 0.15);
    color: var(--accent-business);
}

.stat-content h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Filter Section */
.filter-section {
    margin-bottom: var(--spacing-lg);
}

.filter-tabs {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    background: var(--bg-card);
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
}

.filter-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab i {
    width: 18px;
    height: 18px;
}

.filter-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.filter-tab.active {
    background: var(--primary-olive);
    color: white;
    border-color: var(--olive-light);
}

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.news-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid transparent;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-olive);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-olive);
}

.news-card:hover::before {
    opacity: 1;
}

.news-card.breaking::before {
    background: var(--accent-breaking);
}

.news-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.news-badge i {
    width: 14px;
    height: 14px;
}

.breaking-badge {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-breaking);
    border: 1px solid var(--accent-breaking);
}

.weather-badge {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-weather);
    border: 1px solid var(--accent-weather);
}

.alert-badge {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-security);
    border: 1px solid var(--accent-security);
}

.news-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.news-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    flex: 1;
}

.news-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.news-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--bg-hover);
}

.news-category {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.news-category i {
    width: 16px;
    height: 16px;
}

.news-category.politics {
    color: var(--accent-politics);
}

.news-category.business {
    color: var(--accent-business);
}

.news-category.weather {
    color: var(--accent-weather);
}

.news-category.security {
    color: var(--accent-security);
}

.news-category.breaking {
    color: var(--accent-breaking);
}

.news-impact {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
}

.news-impact.high {
    background: rgba(239, 68, 68, 0.15);
    color: var(--status-high);
}

.news-impact.medium {
    background: rgba(245, 158, 11, 0.15);
    color: var(--status-medium);
}

.news-impact.low {
    background: rgba(16, 185, 129, 0.15);
    color: var(--status-low);
}

/* Hidden state for filtering */
.news-card.hidden {
    display: none;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 2px solid var(--primary-maroon);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.footer-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-meta {
        width: 100%;
        justify-content: space-between;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }
    
    .filter-tab {
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .stat-card {
        padding: var(--spacing-sm);
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .news-header h2 {
        font-size: 1rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.news-card {
    animation: fadeIn var(--transition-base) ease-out;
}

/* Loading state */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    color: var(--text-secondary);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-olive);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--olive-light);
}