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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

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

a {
    color: #0066cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Header Styles */
header {
    background-color: #0066cc;
    color: white;
    padding: 15px 0;
}

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

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

.site-logo {
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
    letter-spacing: 0.5px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

nav ul li a:hover {
    text-decoration: underline;
}

/* Search Container */
.search-container {
    background-color: #004d99;
    padding: 20px 0;
}

.search-container form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

.search-container input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

.search-container button {
    padding: 10px 20px;
    background-color: #ff9900;
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-size: 1rem;
}

.search-container button:hover {
    background-color: #e68a00;
}

/* Main Content */
main {
    padding: 40px 0;
}

h1, h2, h3 {
    margin-bottom: 20px;
    color: #0066cc;
}

h1 {
    font-size: 2.2rem;
}

h2 {
    font-size: 1.8rem;
}

h3 {
    font-size: 1.4rem;
}

p {
    margin-bottom: 20px;
}

/* Enhanced Hero Section */
.hero {
    background: linear-gradient(rgba(0, 65, 130, 0.85), rgba(0, 48, 97, 0.95)), url('/static/img/airport-hero.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 80px 0;
    border-radius: 8px;
    margin: 20px auto 40px; /* Added top margin to create padding between navbar and hero */
    box-shadow: 0 10px 25px rgba(0, 102, 204, 0.25);
    max-width: 1800px; /* Added max-width for very large screens */
    width: 96%; /* Make it slightly less than 100% width for some side spacing */
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    animation: fadeIn 0.8s ease-out;
    padding: 0 20px;
    width: 100%; /* Ensure full width of parent container */
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.5rem;
    max-width: 900px;
    margin: 0 auto 30px;
    color: rgba(255, 255, 255, 0.95);
}

.hero-search {
    display: flex;
    width: 100%; /* Make it full width of parent container */
    max-width: 1200px; /* Increased max-width to match hero-content */
    margin: 30px auto 0;
    position: relative;
}

#hero-search-input {
    flex: 1;
    padding: 16px 25px;
    font-size: 1.1rem;
    border: none;
    border-radius: 50px 0 0 50px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

#hero-search-input:focus {
    outline: none;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

#hero-search-button {
    padding: 16px 30px;
    background-color: #ff9900;
    color: white;
    font-weight: bold;
    border: none;
    border-radius: 0 50px 50px 0;
    cursor: pointer;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

#hero-search-button:hover {
    background-color: #e68a00;
    transform: translateY(-2px);
}

/* Browse Section */
.browse-section {
    margin: 40px 0;
}

.browse-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.browse-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
}

.browse-card h3 {
    position: relative;
    padding-bottom: 12px;
}

.browse-card h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: #0066cc;
    border-radius: 3px;
}

.letter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    gap: 8px;
    margin: 15px 0;
}

.letter-grid a {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
    background-color: var(--letter-grid-bg);
    border-radius: 4px;
    text-decoration: none;
    color: var(--letter-grid-color);
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.letter-grid a:hover {
    background-color: var(--letter-grid-hover-bg);
    transform: scale(1.1);
}

.letter-grid.large {
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
}

.letter-grid.medium {
    grid-template-columns: repeat(auto-fill, minmax(35px, 1fr));
}

.letter-box {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
    background-color: var(--letter-box-bg);
    border-radius: 4px;
    color: var(--letter-box-color);
    font-weight: bold;
}

.letter-box.active {
    background-color: var(--letter-box-active-bg);
    color: var(--letter-box-active-color);
}

.view-all {
    display: inline-block;
    margin-top: 15px;
    color: #0066cc;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.view-all:hover {
    transform: translateY(-2px);
}

/* Airport Cards */
.airport-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.airport-card {
    background-color: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.airport-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.airport-card h3 {
    position: relative;
    padding-bottom: 12px;
}

.airport-card h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: #0066cc;
    border-radius: 3px;
}

.airport-card h3 a {
    color: #0066cc;
    text-decoration: none;
    display: block;
    font-size: inherit;
    font-weight: inherit;
}

.airport-card h3 a:hover {
    text-decoration: underline;
}

.airport-location {
    color: var(--airport-location-color);
    margin-bottom: 10px;
}

.airport-codes {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.iata, .icao {
    background-color: var(--iata-icao-bg);
    color: var(--airport-code-color);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.airport-codes span {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
}

.airport-card-link {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 12px;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.airport-card-link:hover {
    background-color: #005bb7;
    text-decoration: none;
    transform: translateY(-1px);
}

/* Enhanced Airport Card Styling */
.airport-extended-info {
    margin: 10px 0;
    font-size: 0.9rem;
    color: var(--airport-extended-color);
}

.airport-extended-info p {
    margin: 5px 0;
    line-height: 1.3;
}

/* Mobile specific classes */
@media (max-width: 768px) {
    .mobile-hide {
        display: none;
    }
    
    .mobile-only {
        display: block;
    }
}

@media (min-width: 769px) {
    .mobile-only {
        display: none;
    }
}

.airport-international .badge {
    background-color: #0066cc;
    color: white;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
}

.airport-runway {
    color: var(--location-info-color);
}

.airport-altitude, 
.airport-terminals,
.airport-passengers {
    color: var(--airport-location-color);
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: var(--data-table-bg);
    box-shadow: var(--card-shadow);
    border-radius: 8px;
    overflow: hidden;
}

.data-table th, .data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--data-table-border);
}

.data-table th {
    background-color: var(--data-table-header-bg);
    font-weight: bold;
    color: var(--airport-code-color);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background-color: var(--button-hover);
}

.data-table a {
    color: var(--link-color);
    text-decoration: none;
}

/* Country Grid */
.country-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.country-item {
    background-color: var(--card-bg);
    padding: 12px;
    border-radius: 6px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.country-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.country-name {
    font-weight: bold;
    color: var(--text-color);
}

.airport-count {
    color: var(--country-count-color);
    font-size: 0.9rem;
}

/* Region Cards */
.region-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.region-card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.region-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.view-region {
    display: inline-block;
    margin-top: 10px;
    background-color: #0066cc;
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.view-region:hover {
    background-color: #004d99;
    transform: translateY(-2px);
}

/* Airport Detail Page */
.airport-detail {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.airport-codes-box {
    display: flex;
    margin: 20px 0;
    gap: 15px;
}

.code-item {
    background-color: #f2f7ff;
    padding: 15px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    min-width: 120px;
}

.code-label {
    font-size: 0.9rem;
    color: var(--label-color);
    margin-bottom: 5px;
}

.code-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--airport-code-color);
}

/* Flight Tracking Section */
.flight-tracking-section {
    background-color: #e6f3ff;
    border: 1px solid #b3d9ff;
    border-radius: 8px;
    padding: 15px;
    margin: 20px 0;
    text-align: center;
}

.flight-tracking-link {
    margin: 0;
}

.flight-tracking-link a {
    color: #0066cc;
    font-weight: 500;
    text-decoration: none;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.flight-tracking-link a:hover {
    color: #004d99;
    text-decoration: underline;
}

.airport-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.info-section {
    background-color: var(--info-section-bg);
    padding: 20px;
    border-radius: 8px;
}

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

.info-section li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e5e5e5;
}

.info-section li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.map-section {
    margin: 30px 0;
}

.airport-map {
    height: 400px;
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
}

/* Footer */
footer {
    background-color: #333;
    color: white;
    padding: 40px 0 20px;
    margin-top: 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
}

/* Airport search styling */
#search-container {
  position: relative;
  max-width: 1200px;
  width: 100%;
  margin: 20px auto;
  padding: 0 20px;
}

.search-box {
  position: relative;
  width: 100%;
}

#search-input {
    width: 100%;
    padding: 16px 25px;
    font-size: 1.1rem;
    border: none;
    border-radius: 50px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

#search-input:focus {
    outline: none;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.search-results-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #ddd;
    border-radius: 0 0 15px 15px;
    max-height: 450px;
    overflow-y: auto;
    box-shadow: 0 6px 15px rgba(0,0,0,0.25);
    z-index: 1000;
    display: none;
    margin-top: 5px;
    text-align: left;
    width: 100%;
}

.search-results-dropdown ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.search-results-dropdown li {
    padding: 0;
    border-bottom: 1px solid #eee;
}

.search-results-dropdown li:last-child {
    border-bottom: none;
}

.search-results-dropdown a {
    display: flex;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    align-items: center;
    transition: background-color 0.2s ease;
}

.search-results-dropdown a:hover {
    background-color: #f0f7ff;
}

.search-results-dropdown .no-results,
.search-results-dropdown .search-loading {
    padding: 20px;
    text-align: center;
    color: #666;
}

/* Hero search results styling */
#hero-search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  border: 1px solid #ddd;
  border-radius: 0 0 15px 15px;
  max-height: 450px;
  overflow-y: auto;
  box-shadow: 0 6px 15px rgba(0,0,0,0.25);
  z-index: 1000;
  display: none;
  margin-top: 5px;
  text-align: left;
  width: 100%;
}

#hero-search-results ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#hero-search-results li {
  padding: 0;
  border-bottom: 1px solid #eee;
}

#hero-search-results li:last-child {
  border-bottom: none;
}

#hero-search-results a {
  display: flex;
  padding: 14px 25px;
  color: #333;
  text-decoration: none;
  align-items: center;
  transition: background-color 0.2s ease;
}

#hero-search-results a:hover {
  background-color: #f0f7ff;
}

.footer-section ul li a:hover {
    color: white;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    color: #999;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .container {
        padding: 0 15px;
    }
    
    .airport-info-grid, .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .airport-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        padding: 15px 10px;
    }
    
    .site-logo {
        font-size: 1.5rem;
    }
    
    nav ul {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 5px 10px;
    }
    
    main {
        padding: 20px 0;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    .browse-options, .airport-grid, .country-grid, .region-grid, .airport-info-grid, .footer-content {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .search-container form {
        flex-direction: column;
    }
    
    .search-container input, .search-container button {
        width: 100%;
        border-radius: 4px;
    }
    
    .search-container button {
        margin-top: 10px;
    }
    
    /* Make the search box more mobile-friendly */
    #search-container {
        max-width: 100%;
        margin: 15px 10px;
    }
    
    #search-input {
        padding: 10px;
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
    
    .search-results-dropdown {
        max-height: 300px;
    }
    
    /* Improve touch targets */
    .letter-grid {
        grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    }
    
    .letter-grid a {
        height: 44px; /* Minimum recommended touch target size */
    }
    
    /* Better spacing for code displays */
    .airport-codes {
        flex-direction: column;
        gap: 8px;
    }
    
    .iata, .icao {
        text-align: center;
    }
    
    /* Make airport cards more touch-friendly */
    .airport-card {
        padding: 15px;
    }
    
    /* Adjust map size for smaller screens */
    .airport-map {
        height: 300px;
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .letter-grid {
        grid-template-columns: repeat(auto-fill, minmax(35px, 1fr));
    }
    
    .code-item {
        min-width: 90px;
        padding: 10px;
    }
    
    .code-value {
        font-size: 1.4rem;
    }
    
    .footer-section h3 {
        font-size: 1.1rem;
    }
    
    .airport-codes-box {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Page-specific Styles */
.about-page {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.about-section {
    margin-bottom: 40px;
}

.about-section:last-child {
    margin-bottom: 0;
}

/* Add more space between the index page about section and footer */
.homepage-about {
    margin-bottom: 40px;
    padding-bottom: 20px;
}

.about-section ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.about-section li {
    margin-bottom: 10px;
}

.learn-more {
    display: inline-block;
    background-color: var(--learn-more-bg);
    color: var(--learn-more-color);
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    margin-top: 20px;
    box-shadow: 0 2px 5px rgba(0, 102, 204, 0.2);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.learn-more:hover {
    background-color: var(--primary-color);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 102, 204, 0.3);
}

/* Animation Effects */
.airport-card, .browse-card, .country-item, .region-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.airport-card:hover, .browse-card:hover, .country-item:hover, .region-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.view-all, .learn-more, .view-region {
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.view-all:hover, .learn-more:hover, .view-region:hover {
    transform: translateY(-2px);
}

.letter-grid a {
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.letter-grid a:hover {
    transform: scale(1.1);
}

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

/* Utility class for extra spacing */
.mb-large {
    margin-bottom: 80px !important;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Add animation to cards */
.airport-card, .browse-card {
    animation: slideIn 0.5s ease-out;
}

/* Breadcrumbs */
.breadcrumbs {
    padding: 10px 20px;
    background-color: #f5f5f5;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 0.9em;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.breadcrumbs a {
    color: #0078d7;
    text-decoration: none;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.breadcrumbs span {
    color: #666;
}

/* Favorites and Share Buttons */
.airport-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.airport-title {
    flex: 1;
}

.airport-actions {
    display: flex;
    gap: 10px;
}

.favorite-btn, .share-btn {
    padding: 8px 15px;
    border-radius: 20px;
    border: 1px solid var(--favorite-btn-border);
    background-color: var(--favorite-btn-bg);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.favorite-btn:hover, .share-btn:hover {
    background-color: var(--button-hover);
}

.favorite-btn.is-favorite {
    border-color: var(--favorite-active-border);
    color: var(--favorite-active-color);
}

.favorite-btn.is-favorite .heart-icon {
    color: var(--favorite-active-color);
}

.heart-icon, .share-icon {
    font-size: 1.1rem;
}

/* Favorites Section */
.favorites-section {
    margin: 30px 0;
    background-color: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: none; /* Hidden by default, shown by JS when favorites exist */
}

.favorites-section.has-favorites {
    display: block;
}

.favorites-container {
    margin-top: 15px;
}

.favorites-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
}

.favorites-list li {
    position: relative;
    background-color: var(--favorites-bg);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.favorites-list li:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.favorite-item {
    display: block;
    padding: 15px;
    text-decoration: none;
    color: inherit;
}

.favorite-name {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
}

.favorite-code {
    display: inline-block;
    background-color: var(--favorite-code-bg);
    color: var(--airport-code-color);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    margin-top: 5px;
    line-height: 1.4;
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.remove-favorite {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background-color: var(--favorite-remove-bg);
    color: var(--favorite-remove-color);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.remove-favorite:hover {
    background-color: #e53935;
    color: white;
}

.no-favorites {
    text-align: center;
    color: #666;
    padding: 20px;
    font-style: italic;
}

/* Recently Viewed */
.recently-viewed-section {
    margin: 30px 0;
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    display: none; /* Hidden by default, shown by JS when there are recently viewed items */
}

.recently-viewed-section.has-recents {
    display: block;
}

.recently-viewed-list {
    display: flex;
    overflow-x: auto;
    gap: 15px;
    padding: 10px 0;
    margin: 0 -10px;
    scrollbar-width: thin;
}

.recently-viewed-item {
    flex: 0 0 280px;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    padding: 15px;
}

.recently-viewed-name {
    font-weight: bold;
    margin-bottom: 5px;
}

.recently-viewed-location {
    font-size: 0.9rem;
    color: var(--airport-location-color);
    margin-bottom: 8px;
}

.recently-viewed-code {
    font-size: 0.9rem;
    color: var(--airport-code-color);
    margin-top: 8px;
    background-color: var(--favorite-code-bg);
    padding: 3px 8px;
    border-radius: 4px;
    line-height: 1.4;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #0066cc;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #005bb7;
    text-decoration: none;
}

@media (max-width: 768px) {
    .airport-header {
        flex-direction: column;
    }
    
    .airport-actions {
        margin-top: 15px;
        width: 100%;
        justify-content: space-between;
    }
    
    .favorites-list {
        grid-template-columns: 1fr;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9rem;
    padding: 5px 10px;
    border-radius: 15px;
    transition: background-color 0.2s ease;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.moon-icon, .sun-icon {
    font-size: 1.1rem;
}

/* Dark Mode Styles */
:root {
    --background-color: #f5f7fa;
    --text-color: #333;
    --primary-color: #0066cc;
    --secondary-color: #e6f2ff;
    --card-bg: white;
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --border-color: rgba(0, 0, 0, 0.05);
    --header-bg: #0066cc;
    --header-text: white;
    --footer-bg: #333;
    --footer-text: white;
    --link-color: #0066cc;
    --button-hover: #f0f0f0;
    --search-dropdown-bg: white;
    --code-item-bg: #f2f7ff;
    --breadcrumb-bg: #f5f5f5;
    --favorites-bg: #f5f7fa;
    --label-color: #666;
    --location-info-color: #555;
    --airport-code-color: #0066cc;
    --airport-code-bg: #e6f2ff;
    --info-section-bg: #f9f9f9;
    --airport-location-color: #666;
    --airport-extended-color: #555;
    --favorite-code-bg: #e6f2ff;
    --favorite-remove-bg: rgba(0, 0, 0, 0.1);
    --favorite-remove-color: #666;
    --iata-icao-bg: #e6f2ff;
    --recently-viewed-bg: white;
    --browse-bg: white;
    --country-item-bg: white;
    --learn-more-bg: #0066cc;
    --learn-more-color: white;
    --country-count-color: #666;
    --letter-grid-bg: #e6f2ff;
    --letter-grid-color: #0066cc;
    --letter-grid-hover-bg: #cce6ff;
    --letter-box-bg: #e6f2ff;
    --letter-box-color: #0066cc;
    --letter-box-active-bg: #0066cc;
    --letter-box-active-color: white;
    --favorite-btn-bg: white;
    --favorite-btn-border: #ddd;
    --favorite-btn-color: #333;
    --share-btn-bg: white;
    --share-btn-border: #ddd;
    --share-btn-color: #333;
    --favorite-active-border: #e53935;
    --favorite-active-color: #e53935;
    --data-table-bg: white;
    --data-table-border: #e5e5e5;
    --data-table-header-bg: #f2f7ff;
}

[data-theme="dark"] {
    --background-color: #121212;
    --text-color: #e0e0e0;
    --primary-color: #3a8ee6;
    --secondary-color: #1e3a5f;
    --card-bg: #1e1e1e;
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    --border-color: rgba(255, 255, 255, 0.05);
    --header-bg: #0d1b2a;
    --header-text: #e0e0e0;
    --footer-bg: #0d1b2a;
    --footer-text: #e0e0e0;
    --link-color: #3a8ee6;
    --button-hover: #2a2a2a;
    --search-dropdown-bg: #1e1e1e;
    --code-item-bg: #1e3a5f;
    --breadcrumb-bg: #1e1e1e;
    --favorites-bg: #2a2a2a;
    --label-color: #b0b0b0;
    --location-info-color: #cccccc;
    --airport-code-color: #3a8ee6;
    --airport-code-bg: #1e3a5f;
    --info-section-bg: #252525;
    --airport-location-color: #b0b0b0;
    --airport-extended-color: #b0b0b0;
    --favorite-code-bg: #1e3a5f;
    --favorite-remove-bg: rgba(255, 255, 255, 0.1);
    --favorite-remove-color: #b0b0b0;
    --iata-icao-bg: #1e3a5f;
    --recently-viewed-bg: #1e1e1e;
    --browse-bg: #1e1e1e;
    --country-item-bg: #1e1e1e;
    --learn-more-bg: #1e3a5f;
    --learn-more-color: #e0e0e0;
    --country-count-color: #b0b0b0;
    --letter-grid-bg: #1e3a5f;
    --letter-grid-color: #3a8ee6;
    --letter-grid-hover-bg: #263f5f;
    --letter-box-bg: #1e3a5f;
    --letter-box-color: #3a8ee6;
    --letter-box-active-bg: #3a8ee6;
    --letter-box-active-color: #121212;
    --favorite-btn-bg: #1e1e1e;
    --favorite-btn-border: #444;
    --favorite-btn-color: #e0e0e0;
    --share-btn-bg: #1e1e1e;
    --share-btn-border: #444;
    --share-btn-color: #e0e0e0;
    --favorite-active-border: #e53935;
    --favorite-active-color: #e53935;
    --data-table-bg: #1e1e1e;
    --data-table-border: #333;
    --data-table-header-bg: #1e3a5f;
}

/* Apply theme variables */
body {
    background-color: var(--background-color);
    color: var(--text-color);
}

header {
    background-color: var(--header-bg);
    color: var(--header-text);
}

footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
}

a {
    color: var(--link-color);
}

.airport-detail, .about-page, .browse-card, .airport-card, 
.favorites-section, .recently-viewed-item, .country-item {
    background-color: var(--card-bg);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
}

.letter-grid a {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

.letter-grid a:hover {
    background-color: var(--primary-color);
    color: var(--header-text);
}

.search-results-dropdown, #hero-search-results {
    background-color: var(--search-dropdown-bg);
}

.code-item {
    background-color: var(--code-item-bg);
}

.breadcrumbs {
    background-color: var(--breadcrumb-bg);
}

h1, h2, h3 {
    color: var(--primary-color);
}

.favorite-btn:hover, .share-btn:hover {
    background-color: var(--button-hover);
}

.data-table th {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

.data-table tr:hover {
    background-color: var(--button-hover);
}

/* Smooth transition between themes */
body, header, footer, .airport-detail, .about-page, .browse-card, 
.airport-card, .favorites-section, .recently-viewed-item, .country-item,
.letter-grid a, .search-results-dropdown, #hero-search-results, 
.code-item, .breadcrumbs, h1, h2, h3, .favorite-btn, .share-btn,
.data-table th, .data-table tr {
    transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

/* New CSS styles for search results */
.search-results-dropdown a,
#hero-search-results a {
    display: flex;
    padding: 14px 25px;
    color: var(--text-color);
    text-decoration: none;
    align-items: center;
    transition: background-color 0.2s ease;
    gap: 15px;
}

.search-results-dropdown a:hover,
#hero-search-results a:hover {
    background-color: var(--secondary-color);
}

.airport-code {
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--airport-code-color);
    background-color: var(--airport-code-bg);
    padding: 6px 10px;
    border-radius: 5px;
    display: inline-block;
    min-width: 60px;
    text-align: center;
    letter-spacing: 0.5px;
}

.airport-details {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.airport-name {
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 3px;
}

.airport-location {
    font-size: 0.85rem;
    color: var(--airport-location-color);
}

@media (max-width: 768px) {
    .search-results-dropdown a,
    #hero-search-results a {
        gap: 10px;
        padding: 12px 15px;
    }
    
    .airport-code {
        font-size: 1rem;
        padding: 4px 8px;
        min-width: 50px;
    }
}

/* Nearby Localities Section */
.nearby-localities {
    margin: 30px 0;
}

.nearby-localities h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.localities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.locality-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.locality-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.locality-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-color);
}

.locality-info {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.locality-type {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 500;
}

.locality-distance {
    background-color: var(--code-item-bg);
    color: var(--airport-code-color);
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 600;
}

.locality-population {
    color: var(--airport-location-color);
    padding: 4px 10px;
    background-color: var(--info-section-bg);
    border-radius: 12px;
}

.locality-address {
    font-size: 0.85rem;
    color: var(--airport-location-color);
    line-height: 1.4;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .localities-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .locality-card {
        padding: 15px;
    }
    
    .locality-info {
        font-size: 0.85rem;
    }
}