/* Modern CSS for Group Travel International */
/* Google Fonts loaded via link tag in HTML for better performance */

/* CSS Variables */
:root {
    --navy: #1e3a8a;
    --navy-dark: #1e40af;
    --navy-light: #3b82f6;
    --gold: #d97706;
    --gold-light: #f59e0b;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    overflow-x: hidden;
}

/* Skip to main content link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--navy);
    color: var(--white);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 10000;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h2 {
    color: var(--navy);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--gold);
}

.nav-link:focus {
    outline: 2px solid var(--gold);
    outline-offset: 4px;
    border-radius: 2px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.phone a {
    color: var(--navy);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.phone a:hover {
    color: var(--gold);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn:focus {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
    border-radius: 4px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--navy);
    margin: 3px 0;
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    background: var(--white);
    padding: 1rem;
    border-top: 1px solid var(--gray-200);
}

.mobile-nav-link {
    display: block;
    padding: 0.75rem 0;
    color: var(--gray-700);
    text-decoration: none;
    border-bottom: 1px solid var(--gray-200);
    transition: color 0.3s ease;
}

.mobile-nav-link:focus {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
    border-radius: 4px;
}

.mobile-nav-link:hover {
    color: var(--gold);
}

/* Hero Section */
/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out, visibility 1s ease-in-out;
    z-index: 0; /* keep all slides under control */
}

.slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}
.slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Prevent layout shift */
    aspect-ratio: 16 / 9;
}


.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.7) 0%, rgba(30, 58, 138, 0.5) 100%);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 0 2rem;
    z-index: 2;
}

.slide-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.slide-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    color: var(--white);
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.cta-button:focus {
    outline: 3px solid var(--white);
    outline-offset: 3px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 3;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-dot:focus {
    outline: 2px solid var(--white);
    outline-offset: 2px;
}

.slider-dot.active,
.slider-dot:hover {
    background: var(--white);
    transform: scale(1.2);
}

/* Slider Arrows */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 3;
}

.slider-arrow:focus {
    outline: 2px solid var(--white);
    outline-offset: 2px;
    background: rgba(255, 255, 255, 0.2);
}

.slider-arrow:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.slider-arrow.prev {
    left: 2rem;
}

.slider-arrow.next {
    right: 2rem;
}

.arrow-icon {
    width: 24px;
    height: 24px;
    fill: var(--white);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 1rem;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    margin: 0 auto;
    border-radius: 2px;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--gray-50);
}

.about-content {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.about-text {
    font-size: 1.25rem;
    color: var(--gray-600);
    line-height: 1.8;
}

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

.benefit-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h3 {
    color: var(--navy);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.benefit-card p {
    color: var(--gray-600);
}

/* Services Section */
.services {
    padding: 6rem 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--gold);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    color: var(--navy);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    position: relative;
    color: var(--white);
}

.contact-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.contact-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.8) 0%, rgba(30, 58, 138, 0.7) 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

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

.contact-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.contact-item a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:focus {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
    border-radius: 2px;
}

.contact-item a:hover {
    color: var(--gold);
}

.contact-item p {
    line-height: 1.6;
}

.contact-cta {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-cta h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-cta p {
    opacity: 0.9;
    line-height: 1.6;
}

.contact-map {
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.contact-map iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 3rem 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    text-align: left;
    margin-bottom: 2rem;
}

.footer-address {
    color: var(--gray-300);
}

.footer-address p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.footer-address a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-address a:hover {
    color: var(--gold);
}

.license {
    text-align: center;
    margin-bottom: 1rem;
}

.license p {
    color: var(--gold);
    font-weight: 600;
    font-size: 1.1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--gray-800);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-link:focus {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.social-link:hover {
    background: var(--gold);
    transform: translateY(-3px);
}

.social-icon {
    width: 24px;
    height: 24px;
    fill: var(--white);
}

.copyright {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
    text-align: center;
}

.copyright p {
    color: var(--gray-400);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .phone {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu.active {
        display: block;
    }
    
    .slide-title {
        font-size: 2.5rem;
    }
    
    .slide-subtitle {
        font-size: 1.25rem;
    }
    
    .section-header h2 {
        font-size: 2.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .slider-arrow {
        width: 40px;
        height: 40px;
    }
    
    .slider-arrow.prev {
        left: 1rem;
    }
    
    .slider-arrow.next {
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .slide-title {
        font-size: 2rem;
    }
    
    .slide-subtitle {
        font-size: 1.1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .benefits-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .benefit-card,
    .service-card {
        padding: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}