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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.tagline {
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: 300;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.nav-link:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Breaking News */
.breaking-news {
    background: linear-gradient(90deg, #e74c3c, #c0392b);
    color: white;
    padding: 1rem 0;
    animation: slideDown 0.5s ease-out;
}

.breaking-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.breaking-label {
    background: rgba(255,255,255,0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.breaking-text {
    flex: 1;
    font-weight: 500;
}

.breaking-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.breaking-close:hover {
    background: rgba(255,255,255,0.2);
}

/* Filters */
.filters {
    background: white;
    padding: 2rem 0;
    border-bottom: 1px solid #eee;
}

.filters h3 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.5rem;
}

.filter-buttons, .time-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.filter-btn, .time-btn {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    color: #495057;
}

.filter-btn:hover, .time-btn:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.filter-btn.active, .time-btn.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* Main Content */
.main {
    padding: 3rem 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

/* Articles */
.articles-container {
    display: grid;
    gap: 2rem;
}

.article-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.article-category {
    background: #667eea;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-significance {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: #666;
}

.significance-score {
    background: #f39c12;
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-weight: 600;
}

.article-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
    line-height: 1.3;
}

.article-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-title a:hover {
    color: #667eea;
}

.article-summary {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: #888;
    border-top: 1px solid #f0f0f0;
    padding-top: 1rem;
}

.article-source {
    font-weight: 500;
    color: #667eea;
}

.article-date {
    font-style: italic;
}

/* Sidebar */
.sidebar {
    display: grid;
    gap: 2rem;
    align-content: start;
}

.sidebar-section {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    border: 1px solid #f0f0f0;
}

.sidebar-section h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.weekly-highlight {
    padding: 1rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.weekly-highlight:last-child {
    border-bottom: none;
}

.highlight-title {
    font-weight: 500;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.highlight-summary {
    font-size: 0.9rem;
    color: #666;
}

.category-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.category-name {
    font-weight: 500;
    color: #2c3e50;
}

.category-count {
    background: #f8f9fa;
    color: #495057;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.source-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.5rem 0;
}

.source-icon {
    width: 24px;
    height: 24px;
    background: #667eea;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
}

.source-name {
    font-weight: 500;
    color: #2c3e50;
}

/* Timeline */
.timeline-section {
    background: #f8f9fa;
    padding: 3rem 0;
}

.timeline-section h3 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
    font-size: 2rem;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #667eea;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 2rem;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 2rem;
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content::after {
    content: '';
    position: absolute;
    right: -10px;
    top: 20px;
    width: 0;
    height: 0;
    border: 10px solid transparent;
    border-left-color: white;
}

.timeline-item:nth-child(even) .timeline-content::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 20px;
    width: 0;
    height: 0;
    border: 10px solid transparent;
    border-right-color: white;
}

.timeline-date {
    background: #667eea;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.8rem;
}

.timeline-title {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.timeline-description {
    color: #666;
    font-size: 0.9rem;
}

/* Support Section */
.support-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
}

.support-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.support-content h3 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.support-content > p {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.donation-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.donation-method {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.donation-method h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.donation-btn {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 1rem 2rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.donation-btn:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.impact-list {
    list-style: none;
    text-align: left;
}

.impact-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.impact-list li:last-child {
    border-bottom: none;
}

.transparency {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.transparency h4 {
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: #ecf0f1;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.6;
}

.source-list, .feature-list {
    list-style: none;
}

.source-list li, .feature-list li {
    padding: 0.3rem 0;
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.social-link:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1rem;
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: white;
    text-decoration: none;
}

/* Loading */
.loading {
    text-align: center;
    padding: 3rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 1.5rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .filter-buttons, .time-filters {
        gap: 0.5rem;
    }
    
    .filter-btn, .time-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 3rem !important;
        padding-right: 0 !important;
    }
    
    .timeline-content::after,
    .timeline-content::before {
        display: none;
    }
    
    .donation-options {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .breaking-content {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .article-card {
        padding: 1.5rem;
    }
    
    .article-title {
        font-size: 1.2rem;
    }
    
    .support-content h3 {
        font-size: 2rem;
    }
}