/* ========================================
   APPLE NEWS DAILY - STYLES
   Modern, Apple-inspired design
   ======================================== */

:root {
    /* Apple-like colors */
    --primary: #0071e3;
    --primary-dark: #005bb5;
    --secondary: #86868b;
    --accent: #ff2d55;
    --success: #34c759;
    --warning: #ff9500;
    
    /* Light mode */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-tertiary: #ffffff;
    --text-primary: #1d1d1f;
    --text-secondary: #424245;
    --text-tertiary: #86868b;
    
    /* Borders & shadows */
    --border: #d2d2d7;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #1d1d1f;
        --bg-tertiary: #1d1d1f;
        --text-primary: #f5f5f7;
        --text-secondary: #d2d2d7;
        --text-tertiary: #86868b;
        
        --border: #424245;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
        --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
        --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    font-size: 17px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* ===== HEADER ===== */
header {
    margin-bottom: 60px;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.apple-logo {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 9999px;
    background: var(--bg-secondary);
    transition: all 200ms ease;
}

.nav-link:hover {
    background: var(--primary);
    color: white;
}

.home-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    background: rgba(0, 113, 227, 0.1);
}

.post-meta {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: var(--spacing-sm);
}

.read-time {
    color: var(--primary);
}

/* ===== MAIN CONTENT ===== */
.post-content {
    max-width: 740px;
    margin: 0 auto;
}

.post-content section {
    margin-bottom: var(--spacing-xl);
}

.lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-weight: 400;
}

.post-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.post-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    letter-spacing: -0.01em;
}

.post-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.post-content p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.post-content ul,
.post-content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.post-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.post-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.tip {
    background: rgba(52, 199, 89, 0.1);
    border-left: 3px solid var(--success);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) 0;
}

.tip strong {
    color: var(--success);
}

.warning {
    background: rgba(255, 149, 0, 0.1);
    border-left: 3px solid var(--warning);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) 0;
}

.warning strong {
    color: var(--warning);
}

/* ===== HOME PAGE ===== */
.featured {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.featured-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 6px 16px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-md);
}

.featured-article h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.featured-summary {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all 200ms ease;
}

.read-more:hover {
    gap: var(--spacing-sm);
}

.featured .read-more {
    color: white;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.news-grid,
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.news-card,
.tip-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 300ms ease;
    border: 1px solid transparent;
}

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

.news-category,
.tip-icon {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 6px 14px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-md);
}

.tip-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.news-card h3,
.tip-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    line-height: 1.4;
}

.news-excerpt,
.tip-excerpt {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.news-meta {
    color: var(--text-tertiary);
    font-size: 0.8125rem;
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.news-meta time {
    color: var(--primary);
    font-weight: 500;
}

/* ===== NEWSLETTER ===== */
.newsletter-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.newsletter-section .section-title {
    color: white;
}

.newsletter-card {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-text {
    color: white;
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.newsletter-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
}

.newsletter-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--text-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 200ms ease;
}

.newsletter-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.newsletter-subtext {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

/* ===== FOOTER ===== */
footer {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 200ms ease;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.footer-copyright {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.footer-disclaimer {
    color: var(--text-tertiary);
    font-size: 0.8125rem;
    margin-bottom: var(--spacing-md);
}

.footer-sources {
    color: var(--text-tertiary);
    font-size: 0.8125rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 40px 16px;
    }
    
    .apple-logo {
        font-size: 2rem;
    }
    
    .featured-article h2 {
        font-size: 1.5rem;
    }
    
    .news-grid,
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-button {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .nav {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 4px;
}