/* TravelHub - Travel Tools Website Styles */

/* CSS Variables */
:root {
  /* Colors - Light Mode */
  --primary: #2d6a4f;
  --primary-dark: #1b4332;
  --secondary: #40916c;
  --accent: #e76f51;
  --accent-orange: #f4a261;
  --ocean-blue: #0077b6;
  --ocean-dark: #023e8a;
  --earth-brown: #8b7355;
  --earth-light: #d4c4b0;
  --sunset-gold: #e9c46a;
  
  /* Neutrals */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #2d3436;
  --text-secondary: #636e72;
  --text-muted: #b2bec3;
  --border-color: #dee2e6;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50%;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Container */
  --container-max: 1200px;
  --container-narrow: 800px;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --text-primary: #eaeaea;
  --text-secondary: #b8b8b8;
  --text-muted: #6c6c6c;
  --border-color: #2d3a4f;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

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

ul, ol {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
}

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

.logo-icon {
  font-size: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  color: var(--text-primary);
  font-weight: 500;
  padding: var(--space-sm) 0;
  position: relative;
}

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

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

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

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  padding: var(--space-sm);
  color: var(--text-primary);
  transition: transform var(--transition-fast);
}

.theme-toggle:hover {
  transform: scale(1.1);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  font-size: 1.5rem;
  color: var(--text-primary);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
}

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

.mobile-nav a {
  display: block;
  padding: var(--space-md);
  color: var(--text-primary);
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
}

.mobile-nav a:hover {
  background: var(--bg-secondary);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-orange));
  color: white;
}

.btn-accent:hover {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: white;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.125rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(circle, rgba(45, 106, 79, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-text h1 {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.stat {
  text-align: center;
}

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

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

.hero-visual {
  position: relative;
}

.hero-image {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
}

/* Section Styles */
.section {
  padding: var(--space-3xl) 0;
}

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

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-2xl);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* Cards */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-base);
}

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

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: var(--space-lg);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

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

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Tool Cards */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.tool-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

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

.tool-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.tool-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.tool-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

.tool-category {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Article Cards */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.article-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

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

.article-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.article-content {
  padding: var(--space-lg);
}

.article-category {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-md);
}

.article-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.article-title a {
  color: var(--text-primary);
}

.article-title a:hover {
  color: var(--primary);
}

.article-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Filter Buttons */
.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

/* Form Styles */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

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

/* Tool Interface */
.tool-container {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.tool-header {
  padding: var(--space-xl);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  text-align: center;
}

.tool-header h2 {
  color: white;
  margin-bottom: var(--space-sm);
}

.tool-header p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 0;
}

.tool-body {
  padding: var(--space-xl);
}

.tool-result {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  text-align: center;
}

.result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

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

/* FAQ Styles */
.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background: var(--bg-tertiary);
}

.faq-icon {
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 var(--space-lg);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item.active .faq-answer {
  padding: var(--space-lg);
  max-height: 500px;
}

.faq-answer p {
  margin-bottom: 0;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--space-md);
}

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

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.footer-links a {
  display: block;
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-bottom p {
  color: var(--text-muted);
  margin-bottom: 0;
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  font-size: 1.25rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
}

/* Page Header */
.page-header {
  padding: calc(80px + var(--space-3xl)) 0 var(--space-2xl);
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--space-md);
}

.page-header p {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.125rem;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

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

/* 404 Page */
.error-page {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl);
}

.error-content h1 {
  font-size: clamp(4rem, 15vw, 10rem);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.error-content h2 {
  margin-bottom: var(--space-md);
}

.error-content p {
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}

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

.sitemap-section h3 {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--primary);
}

.sitemap-section a {
  display: block;
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

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

.legal-content h2 {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.legal-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.legal-content ul {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.legal-content li {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  list-style: disc;
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  text-align: center;
}

.stats-card {
  padding: var(--space-xl);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.stats-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.stats-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.stats-label {
  color: var(--text-secondary);
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.contact-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: var(--space-xs);
}

.contact-item p {
  margin-bottom: 0;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  padding: var(--space-xl);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
}

.feature-card h3 {
  margin-bottom: var(--space-md);
}

/* Utility Classes */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-xl); }
.mt-3 { margin-top: var(--space-2xl); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xl); }
.mb-3 { margin-bottom: var(--space-2xl); }

.hidden { display: none !important; }

/* Animation Classes */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-tertiary);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Tool specific styles */
.converter-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-md);
  align-items: end;
}

.converter-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
  padding-bottom: var(--space-md);
}

@media (max-width: 480px) {
  .converter-grid {
    grid-template-columns: 1fr;
  }
  
  .converter-arrow {
    text-align: center;
    transform: rotate(90deg);
  }
}

/* Checklist Styles */
.checklist {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
}

.checklist-item:last-child {
  border-bottom: none;
}

.checklist-checkbox {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.checklist-item.checked .checklist-checkbox {
  background: var(--primary);
  border-color: var(--primary);
}

.checklist-item.checked .checklist-checkbox::after {
  content: '✓';
  color: white;
  font-weight: bold;
}

.checklist-text {
  flex-grow: 1;
}

.checklist-item.checked .checklist-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Countdown Styles */
.countdown-display {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.countdown-unit {
  text-align: center;
  min-width: 100px;
}

.countdown-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.countdown-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* About Page Styles */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.team-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
  object-fit: cover;
}

.team-name {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

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

/* Print Styles */
@media print {
  .navbar,
  .footer,
  .btn,
  .mobile-nav {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.article-card-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-secondary);
}

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

.article-card h3 {
  font-size: 1.1rem;
  margin: 0;
  color: var(--text-primary);
}

/* 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;
}

.page-header p {
  color: var(--text-secondary);
}

/* 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);
}

/* Tool pages */
.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 768px) {
  .tool-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
}

.tool-input-section, .tool-result-section {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 12px;
}

.tool-input-section h3, .tool-result-section h3 {
  margin-top: 0;
  color: var(--text-primary);
}

.result-grid {
  display: grid;
  gap: 1rem;
}

.result-item {
  background: var(--bg-secondary);
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
}

.result-value {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent-primary);
}

.result-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
}

/* 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);
}