/**
 * Popular Airlines Widget Styles
 * Modern design for FB Travel theme
 */

.popular-airlines-section {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 60px 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    position: relative;
    overflow: hidden;
}

.popular-airlines-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    pointer-events: none;
}

/* Popular Airlines Section */
.popular-airlines-container {
    max-width: 1400px;
    margin: 0 auto 80px;
    position: relative;
    z-index: 1;
}

.popular-header {
    text-align: center;
    margin-bottom: 50px;
    animation: fadeInUp 0.8s ease-out;
}

.popular-title {
    font-size: 3rem;
    font-weight: 800;
    color: #2c3e50;
    margin: 0 0 15px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.popular-subtitle {
    font-size: 1.2rem;
    color: #5a6c7d;
    margin: 0;
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
    font-weight: 400;
}

.airlines-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 24px;
    align-items: stretch;
    margin-top: 40px;
}

.fb-travel-popular-airlines-widget {
    padding: 60px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.fb-travel-popular-airlines-widget::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    pointer-events: none;
}

.airlines-widget {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
    animation: fadeInUp 0.8s ease-out;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    color: #2c3e50;
    margin: 0 0 15px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #5a6c7d;
    margin: 0;
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
    font-weight: 400;
}

.popular-airline-item {
    position: relative;
}

.airline-link {
    display: block;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-radius: 20px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid transparent;
    padding: 30px 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.airline-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
}

.airline-link:hover::before {
    left: 100%;
}

.airline-link:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    border-color: #667eea;
    background: rgba(255, 255, 255, 1);
}

.airline-logo {
    height: 50px;
    width: auto;
    max-width: 100px;
    object-fit: contain;
    transition: transform 0.3s ease;
    filter: grayscale(20%);
    margin-bottom: 20px;
}

.airline-link:hover .airline-logo {
    transform: scale(1.1);
    filter: grayscale(0%);
}

.airline-logo-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    width: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50%;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 auto 15px;
}

.airline-name {
    font-size: 1rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.airline-link:hover .airline-name {
    color: #667eea;
}

/* Worldwide Airlines Section */
.worldwide-airlines-container {
    max-width: 1200px;
    margin: 0 auto;
}

.worldwide-header {
    text-align: left;
    margin-bottom: 40px;
}

.worldwide-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 12px;
    line-height: 1.3;
}

.worldwide-title .highlight {
    color: #ff6b35;
}

.worldwide-subtitle {
    font-size: 16px;
    color: #666666;
    margin: 0;
    line-height: 1.5;
    max-width: 600px;
}

.worldwide-airlines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.airline-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 32px 24px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    text-align: center;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.airline-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.6s ease;
}

.airline-card:hover::before {
    left: 100%;
}

.airline-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
    background: #ffffff;
}

.airline-card .airline-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: inherit;
    width: 100%;
    height: 100%;
}

.airline-logo-container {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
}

.airline-logo {
    height: 50px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: grayscale(30%) brightness(0.9);
}

.airline-card:hover .airline-logo {
    transform: scale(1.1);
    filter: grayscale(0%) brightness(1);
}

.airline-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    width: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.4rem;
    font-weight: 700;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.airline-info {
    text-align: center;
}

.airline-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.airline-card:hover .airline-name {
    color: #667eea;
}

.airline-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.airline-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: #d1d5db;
}

.airline-card:hover::before {
    transform: scaleX(1);
}

.airline-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.airline-card-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.airline-logo-container {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8fafc;
    border-radius: 8px;
    padding: 8px;
}

.airline-card-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.airline-info {
    flex: 1;
    min-width: 0;
}

.airline-name {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 4px;
    line-height: 1.4;
}

.airline-description {
    font-size: 14px;
    color: #6b7280;
    margin: 0;
    line-height: 1.4;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* AOS Animation Support */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

.popular-airline-item,
.airline-card {
    animation: fadeInUp 0.6s ease forwards;
}

.popular-airline-item:nth-child(2) { animation-delay: 0.1s; }
.popular-airline-item:nth-child(3) { animation-delay: 0.2s; }
.popular-airline-item:nth-child(4) { animation-delay: 0.3s; }
.popular-airline-item:nth-child(5) { animation-delay: 0.4s; }
.popular-airline-item:nth-child(6) { animation-delay: 0.5s; }
.popular-airline-item:nth-child(7) { animation-delay: 0.6s; }
.popular-airline-item:nth-child(8) { animation-delay: 0.7s; }

.airline-card:nth-child(2) { animation-delay: 0.2s; }
.airline-card:nth-child(3) { animation-delay: 0.4s; }

/* Enhanced Responsive Design */
@media (max-width: 1400px) {
    .popular-airlines-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: 20px;
        padding: 0 25px;
    }
}

@media (max-width: 1200px) {
    .popular-airlines-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 18px;
        padding: 0 20px;
    }
    
    .popular-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 992px) {
    .popular-airlines-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
    }
    
    .airline-link {
        padding: 25px 15px;
    }
    
    .popular-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .popular-airlines-section {
        padding: 40px 16px;
    }
    
    .popular-airlines-container {
        margin-bottom: 60px;
    }
    
    .popular-title {
        font-size: 1.8rem;
    }
    
    .worldwide-title {
        font-size: 28px;
    }
    
    .popular-airlines-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .airline-link {
        padding: 20px 10px;
    }
    
    .airline-logo {
        max-width: 80px;
        height: 40px;
    }
    
    .worldwide-airlines-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .airline-card {
        padding: 20px;
    }
    
    .airline-card-content {
        gap: 12px;
    }
    
    .airline-logo-container {
        width: 50px;
        height: 50px;
    }
    
    .airline-name {
        font-size: 16px;
    }
}

@media (max-width: 576px) {
    .popular-airlines-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        padding: 0 15px;
    }
    
    .airline-link {
        padding: 15px 8px;
    }
    
    .airline-name {
        font-size: 0.85rem;
    }
    
    .airline-logo-placeholder {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .popular-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .popular-airlines-section {
        padding: 30px 12px;
    }
    
    .popular-title {
        font-size: 22px;
    }
    
    .worldwide-title {
        font-size: 24px;
    }
    
    .popular-airlines-grid {
        gap: 12px;
    }
    
    .airline-logo {
        height: 32px;
        max-width: 100px;
    }
    
    .airline-logo-placeholder {
        height: 32px;
        min-width: 70px;
        padding: 0 12px;
        font-size: 12px;
    }
}

@media (max-width: 400px) {
    .popular-airlines-grid {
        grid-template-columns: 1fr;
        max-width: 200px;
        margin: 0 auto;
    }
}

/* Focus states for accessibility */
.airline-link:focus,
.airline-card-link:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .popular-airlines-section {
        background: white;
        box-shadow: none;
    }
    
    .airline-card {
        border: 1px solid #ccc;
        box-shadow: none;
        break-inside: avoid;
    }
}