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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
}

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

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    color: white;
    padding: 40px 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 16px;
}

header .meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    transition: background 0.2s;
}

.github-link:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Main Content */
main {
    flex: 1;
    padding: 40px 20px;
}

/* News Cards */
.news-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.news-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.news-card h2 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card h2 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.news-card h2 a:hover {
    color: var(--primary-color);
}

.news-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.news-source {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: var(--bg-color);
    border-radius: 4px;
    font-weight: 500;
}

.news-date {
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-snippet {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Section Headers */
.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 32px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-color);
}

.section-header h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
}

.section-icon {
    font-size: 1.5rem;
}

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

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* Error */
.error {
    text-align: center;
    padding: 40px 20px;
    color: var(--accent-red);
    background: #fef2f2;
    border-radius: 8px;
    border: 1px solid #fecaca;
}

/* Footer */
footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    header .meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .news-card {
        padding: 16px;
    }
    
    .news-card h2 {
        font-size: 1.1rem;
    }
}

/* Platform Tags */
.platform-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.platform-brave { background: #e0f2fe; color: #0369a1; }
.platform-yahoo { background: #f3e8ff; color: #7c3aed; }
.platform-duckduckgo { background: #fef3c7; color: #d97706; }