/* SleepPilot - Dark Sleep Theme CSS */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2234;
  --bg-card-hover: #243044;
  --text-primary: #e8eaf6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-tertiary: #a78bfa;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --border-color: #2d3748;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --gradient-2: linear-gradient(135deg, #1a1f3c 0%, #0a0e1a 100%);
  --gradient-hero: linear-gradient(180deg, #0f1629 0%, #0a0e1a 100%);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.2);
  --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Georgia', serif;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

a {
  color: var(--accent-tertiary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-primary);
}

img {
  max-width: 100%;
  height: auto;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation */
.navbar {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-glow);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 1rem 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

/* Hero Section */
.hero {
  padding: 8rem 0 4rem;
  background: var(--gradient-hero);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center top, rgba(99, 102, 241, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

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

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-tertiary);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient-1);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-alt {
  background: var(--bg-secondary);
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.tool-card {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}

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

.tool-card-icon {
  width: 50px;
  height: 50px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.tool-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.tool-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Tool Page */
.tool-container {
  max-width: 800px;
  margin: 0 auto;
}

.tool-header {
  text-align: center;
  padding: 6rem 0 3rem;
}

.tool-header h1 {
  margin-bottom: 1rem;
}

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

.tool-content {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid var(--border-color);
}

.tool-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.875rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.result-box {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  border: 2px solid var(--accent-primary);
  text-align: center;
  margin-top: 1.5rem;
}

.result-box h3 {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.result-box .result-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-tertiary);
}

.result-box .result-unit {
  color: var(--text-muted);
  font-size: 1rem;
}

.result-box .result-detail {
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* Category Filters */
.category-filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  justify-content: center;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-1);
  border-color: var(--accent-primary);
  color: white;
}

/* Articles */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.article-card-img {
  height: 200px;
  background-size: cover;
  background-position: center;
}

.article-card-content {
  padding: 1.5rem;
}

.article-card-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.article-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Article Page */
.article-container {
  max-width: 800px;
  margin: 0 auto;
}

.article-header {
  padding: 6rem 0 2rem;
  text-align: center;
}

.article-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.article-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.article-content {
  padding: 2rem 0;
  line-height: 1.9;
}

.article-content p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.article-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.article-content ul,
.article-content ol {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.75rem;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 3rem;
}

.pagination a,
.pagination span {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition);
}

.pagination a:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
}

.pagination .active {
  background: var(--gradient-1);
  border-color: var(--accent-primary);
  color: white;
}

/* Ad Slots */
.ad-slot {
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 2rem 0;
}

.ad-slot-horizontal {
  min-height: 90px;
}

.ad-slot-rectangle {
  min-height: 250px;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col a {
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--accent-tertiary);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-form {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 2rem;
  border: 1px solid var(--border-color);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
}

.contact-item-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: 0.25rem;
}

.contact-item p {
  color: var(--text-secondary);
}

/* FAQ */
.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border-color);
}

.faq-item h4 {
  margin-bottom: 0.75rem;
  color: var(--accent-tertiary);
}

.faq-item p {
  color: var(--text-secondary);
}

/* About Page */
.about-hero {
  padding: 6rem 0 3rem;
  text-align: center;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin: 3rem 0;
}

.about-image {
  border-radius: 16px;
  overflow: hidden;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.team-member {
  text-align: center;
  background: var(--bg-card);
  border-radius: 12px;
  padding: 2rem;
  border: 1px solid var(--border-color);
}

.team-member-avatar {
  width: 100px;
  height: 100px;
  background: var(--gradient-1);
  border-radius: 50%;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.team-member h4 {
  margin-bottom: 0.25rem;
}

.team-member p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Legal Pages */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 6rem 0 3rem;
}

.legal-content h1 {
  margin-bottom: 2rem;
}

.legal-content h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.legal-content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

/* 404 Page */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-content h1 {
  font-size: 8rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.error-content p {
  color: var(--text-secondary);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

/* Sitemap */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.sitemap-section h3 {
  margin-bottom: 1rem;
  color: var(--accent-tertiary);
}

.sitemap-section ul {
  list-style: none;
}

.sitemap-section ul li {
  margin-bottom: 0.5rem;
}

.sitemap-section ul li a {
  color: var(--text-secondary);
}

.sitemap-section ul li a:hover {
  color: var(--accent-primary);
}

/* Timer Specific */
.timer-display {
  font-size: 4rem;
  font-weight: 700;
  text-align: center;
  color: var(--accent-tertiary);
  font-variant-numeric: tabular-nums;
}

.timer-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

/* Breath Animation */
.breath-circle {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--gradient-1);
  margin: 2rem auto;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: transform 4s ease-in-out;
}

.breath-circle.inhale {
  transform: scale(1.3);
}

.breath-circle.exhale {
  transform: scale(0.8);
}

.breath-phase {
  text-align: center;
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-top: 1rem;
}

/* Tracker Table */
.tracker-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.tracker-table th,
.tracker-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.tracker-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
}

.tracker-table td {
  color: var(--text-primary);
}

.tracker-table tr:hover td {
  background: var(--bg-secondary);
}

/* Mood Selector */
.mood-selector {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.mood-btn {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  cursor: pointer;
  font-size: 1.75rem;
  transition: var(--transition);
}

.mood-btn:hover,
.mood-btn.selected {
  border-color: var(--accent-primary);
  background: var(--bg-card-hover);
  transform: scale(1.1);
}

/* Checklist */
.checklist {
  list-style: none;
}

.checklist li {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-card);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
}

.checklist li:hover {
  border-color: var(--accent-primary);
}

.checklist li.checked {
  opacity: 0.6;
}

.checklist li.checked .check-icon {
  background: var(--success);
}

.check-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--success);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform 0.3s ease;
  z-index: 2000;
}

.toast.show {
  transform: translateX(0);
}

.toast-icon {
  font-size: 1.25rem;
}

.toast-message {
  color: var(--text-primary);
}

/* Loading Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 2rem auto;
}

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

/* Responsive */
@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hero {
    padding: 6rem 0 3rem;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .timer-display {
    font-size: 3rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.hidden { display: none !important; }

/* Feature List for Articles */
.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-card);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.feature-list-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* Steps */
.steps {
  counter-reset: step;
}

.step {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.step-content h4 {
  margin-bottom: 0.5rem;
}

/* Sitemap Page */
.sitemap-container {
  padding: 6rem 0 3rem;
}

/* Fallback background for article images */
.article-card-img {
  background-color: #1a1a2e;
  background-repeat: no-repeat;
}

/* Page Header */
.page-header {
  padding: 8rem 0 3rem;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

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

/* Section */
.section {
  padding: 4rem 0;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Article Content */
.article-content {
  padding: 2rem 0;
  line-height: 1.9;
}

.article-content p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.article-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-size: 1.8rem;
  color: var(--accent-primary);
}

/* Footer */
.footer {
  padding: 3rem 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

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

/* Mobile Nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 1rem;
  background: var(--bg-secondary);
}

.mobile-nav.active {
  display: flex;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .page-header { padding: 6rem 0 2rem; }
  .page-header h1 { font-size: 1.8rem; }
  .articles-grid { grid-template-columns: 1fr; }
}