:root {
    /* Primary Blue Colors */
    --primary-blue: #1e40af;
    --primary-blue-dark: #1e3a8a;
    --primary-blue-light: #3b82f6;
    --primary-blue-lighter: #60a5fa;
    
    /* Secondary Blue Colors */
    --secondary-blue: #0ea5e9;
    --secondary-blue-dark: #0284c7;
    --secondary-blue-light: #38bdf8;
    
    /* Accent Colors */
    --accent-cyan: #06b6d4;
    --accent-sky: #0284c7;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    --gradient-secondary: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    --gradient-hero: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #3b82f6 100%);
    
    /* Shadows */
    --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);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(180deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--gray-800);
    line-height: 1.6;
    overflow-x: hidden;
}

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



/* === NAVBAR === */
.navbar {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
    box-shadow: var(--shadow-md);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.nav-brand i {
    font-size: 1.8rem;
    color: var(--white);
}

.nav-brand h1 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--white);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.nav-menu a i {
    font-size: 1rem;
}

.btn-login {
    padding: 0.6rem 1.5rem;
    border: 2px solid var(--white);
    border-radius: 8px;
    color: var(--white);
    font-weight: 600;
    transition: var(--transition);
    background: transparent;
}

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

.btn-register {
    padding: 0.6rem 1.5rem;
    border: 2px solid var(--white);
    border-radius: 8px;
    color: var(--white);
    font-weight: 600;
    transition: var(--transition);
    background: transparent;
}

.btn-register:hover {
    background: rgba(255, 255, 255, 0.9);
}

.hero {
    position: relative;
    background: var(--gradient-hero);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 60px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-icon {
    margin-bottom: 2rem;
}

.hero-icon i {
    font-size: 4rem;
    color: var(--white);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.hero-subtitle i {
    font-size: 1.3rem;
}

/* === SEARCH CARD === */
.search-card {
    background: var(--white);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
    margin-top: 2rem;
}

.search-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    align-items: end;
}

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

.form-group label {
    font-weight: 600;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.form-group label i {
    color: var(--primary-blue);
    font-size: 1rem;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 1rem;
    pointer-events: none;
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 0.9rem 1rem 0.9rem 2.8rem;
    border: 2px solid var(--gray-200);
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    background: var(--white);
}

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

.btn-search {
    font-family: 'Poppins', sans-serif;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.btn-search:hover {
    opacity: 0.9;
}

.btn-search i {
    font-size: 1.1rem;
}

/* === DESTINATIONS SECTION === */
.destinations {
    padding: 5rem 0;
    background: var(--white);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue-dark);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
}

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

.destination-card {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(30, 64, 175, 0.3);
    transition: var(--transition);
    border: none;
}

.destination-card:hover {
    box-shadow: 0 15px 40px rgba(30, 64, 175, 0.4);
    transform: translateY(-8px);
}


.destination-content {
    padding: 1.5rem;
    background: var(--gray-100);
}

.destination-header h3 {
    font-size: 1.3rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.destination-header h3 i {
    color: var(--primary-blue);
    font-size: 1rem;
}

.destination-header h3 .fa-arrow-right {
    color: var(--secondary-blue);
    font-size: 0.9rem;
}

.airline {
    color: var(--gray-600);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.airline i {
    color: var(--primary-blue-light);
}

.route-code {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.route-code i {
    color: var(--accent-cyan);
}

.destination-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 2px solid var(--gray-100);
}

.price {
    display: flex;
    flex-direction: column;
}

.price-label {
    font-size: 0.8rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 5px;
}

.price-label i {
    color: var(--secondary-blue);
}

.price-amount {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.btn-book {
    padding: 0.7rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.btn-book:hover {
    opacity: 0.9;
}

/* === ABOUT SECTION === */
.about {
    padding: 5rem 0;
    background: var(--gray-50);
}

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

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    display: flex;
    gap: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--white);
}

.feature-content h3 {
    font-size: 1.2rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* === FOOTER === */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
}

.footer-brand i {
    font-size: 2rem;
    color: var(--primary-blue-light);
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin: 0;
}

.footer-section p {
    color: var(--gray-400);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

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

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-section h4 i {
    color: var(--primary-blue-light);
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: var(--gray-400);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-blue-light);
}

.footer-section ul li i {
    font-size: 0.9rem;
}

.footer-section ul li a i {
    color: var(--primary-blue-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

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

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .nav-menu a i {
        display: none;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .search-form {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .destinations-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        justify-content: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-brand h1 {
        font-size: 1.2rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .search-card {
        padding: 1.5rem;
    }
    
    .btn-login,
    .btn-register {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}