/* ============================================
   MODERN PROFESSIONAL DESIGN SYSTEM
   ============================================ */

:root {
    /* Primary Color Palette - Light Blue */
    --primary-50: #e0f2fe;
    --primary-100: #bae6fd;
    --primary-200: #7dd3fc;
    --primary-300: #38bdf8;
    --primary-400: #0ea5e9;
    --primary-500: #0284c7;
    --primary-600: #0369a1;
    --primary-700: #075985;
    --primary-800: #0c4a6e;
    --primary-900: #082f49;
    
    /* Dark Blue */
    --dark-blue-50: #dbeafe;
    --dark-blue-100: #bfdbfe;
    --dark-blue-200: #93c5fd;
    --dark-blue-300: #60a5fa;
    --dark-blue-400: #3b82f6;
    --dark-blue-500: #1e40af;
    --dark-blue-600: #1e3a8a;
    --dark-blue-700: #1e3a8a;
    --dark-blue-800: #172554;
    --dark-blue-900: #0f172a;
    
    /* Red/Accent Color */
    --accent-red-50: #fee2e2;
    --accent-red-100: #fecaca;
    --accent-red-200: #fca5a5;
    --accent-red-300: #f87171;
    --accent-red-400: #ef4444;
    --accent-red-500: #dc2626;
    --accent-red-600: #b91c1c;
    --accent-red-700: #991b1b;
    --accent-red-800: #7f1d1d;
    --accent-red-900: #450a0a;
    
    /* Neutral Colors */
    --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;
    
    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #dc2626;
    --info: #0284c7;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-display: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============================================
   BASE STYLES
   ============================================ */

html, body {
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
    font-family: var(--font-sans);
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

* {
    box-sizing: border-box;
}

/* Utility class for page top spacing (adjusted for navbar height) */
.page-top-spacing {
    padding-top: 130px;
}

.wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content {
    flex-grow: 1;
}

.footer {
    flex-shrink: 0;
    background: var(--dark-blue-600);
    padding: var(--spacing-2xl) var(--spacing-lg);
    color: white;
    text-align: center;
    margin-top: var(--spacing-2xl);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

.content-container {
    text-align: center;
    padding-top: 180px;
}

/* ============================================
   NAVIGATION STYLES
   ============================================ */

.transparent-nav {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 110px;
    padding: 0.5rem 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.transparent-nav .navbar-brand {
    padding-top: 0;
    padding-bottom: 0;
    font-weight: 600;
    font-size: 1.4rem;
    color: #1e3a8a;
    transition: all 0.3s ease;
}

.transparent-nav .navbar-brand:hover {
    color: #3b82f6;
    transform: scale(1.02);
}

.transparent-nav .navbar-nav .nav-link {
    padding: 0.5rem 1rem;
    color: #475569 !important;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border-radius: 6px;
    margin: 0 0.15rem;
}

.transparent-nav .navbar-nav .nav-link:hover,
.transparent-nav .navbar-nav .nav-link:focus {
    color: #1e3a8a !important;
    background-color: rgba(59, 130, 246, 0.08);
}

.transparent-nav .nav-item.active .nav-link {
    color: #1e3a8a !important;
    background: rgba(59, 130, 246, 0.12);
    font-weight: 600;
}

.transparent-nav .navbar-nav .nav-link i {
    color: inherit;
    margin-right: 0.4rem;
}

.transparent-nav .navbar-toggler {
    border-color: rgba(0, 0, 0, 0.1);
    padding: 0.5rem;
    border-radius: 6px;
    border-width: 1px;
}

.transparent-nav .navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.15);
}

.transparent-nav .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231e3a8a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

.transparent-nav .dropdown-menu {
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 0.5rem;
    margin-top: 0.5rem;
    background: white;
}

.transparent-nav .dropdown-menu .dropdown-item {
    color: #475569;
    padding: 0.6rem 1rem;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 6px;
    margin: 0.15rem 0;
}

.transparent-nav .dropdown-menu .dropdown-item:hover {
    background: #3b82f6;
    color: white;
}

.transparent-nav.scrolled {
    background: rgba(255, 255, 255, 1) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

/* ============================================
   CARD COMPONENTS
   ============================================ */

.main-card {
    position: relative;
    width: 100%;
    z-index: 1;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.main-card:hover {
    box-shadow: var(--shadow-2xl);
    transform: translateY(-4px);
}

.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    transition: all 0.3s ease;
    padding: var(--spacing-xl);
}

.glass-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    background: rgba(255, 255, 255, 0.98);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.form-check-input.main-text-color {
    accent-color: var(--primary-500);
}

.main-color {
    color: var(--primary-600);
}

.main-bg-color {
    background-color: var(--primary-500);
}

/* Scoped to web/client pages only */
body:not(.admin-page) .form-control,
body:not(.admin-page) .form-select {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background-color: white;
    color: var(--gray-800);
}

body:not(.admin-page) .form-control:focus,
body:not(.admin-page) .form-select:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.1);
    outline: none;
    background-color: white;
}

body:not(.admin-page) .form-control::placeholder {
    color: var(--gray-400);
}

body:not(.admin-page) .form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
}

/* ============================================
   BUTTON STYLES
   ============================================ */

/* Scoped to web/client pages only - not admin */
body:not(.admin-page) .btn {
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

body:not(.admin-page) .btn-primary {
    background: var(--dark-blue-600);
    color: white;
    box-shadow: var(--shadow-md);
}

body:not(.admin-page) .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: var(--dark-blue-700);
}

body:not(.admin-page) .btn-modern {
    background: var(--primary-500);
    border: none;
    border-radius: var(--radius-xl);
    padding: var(--spacing-md) var(--spacing-2xl);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    color: white;
}

body:not(.admin-page) .btn-modern:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: var(--primary-600);
}

.btn-outline-primary {
    border: 2px solid var(--primary-500);
    color: var(--primary-600);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-500);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   SEARCH & BOOKING COMPONENTS
   ============================================ */

.search-route-content {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    padding: var(--spacing-2xl);
}

.search-route-content .form-control,
.search-route-content .form-select {
    background: white !important;
    border: 2px solid var(--gray-200);
    color: var(--gray-800);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
}

.search-route-content .form-control:focus,
.search-route-content .form-select:focus {
    background: white !important;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.1);
}

.search-route-content .btn-primary {
    background: var(--accent-red-500) !important;
    border: none;
    border-radius: var(--radius-xl);
    padding: var(--spacing-md) var(--spacing-2xl);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
}

.search-route-content .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   ROUTE & BOOKING CARDS
   ============================================ */

/* ============================================
   ROUTE & BOOKING CARDS
   ============================================ */

.route-images-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.route-images-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.route-image-item {
    width: 100%;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    padding: var(--spacing-lg);
}

.route-image-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.route-full-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-xl);
    transition: transform 0.4s ease;
}

.route-image-item:hover .route-full-image {
    transform: scale(1.02);
}

.popular-routes {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-2xl) 0;
}

.route .card {
    border-radius: var(--radius-2xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    background: white;
}

.route .card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-200);
}

.route .card-img-top {
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.route .card:hover .card-img-top {
    transform: scale(1.05);
}

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

.route .card-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.route .card-text {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-600);
    line-height: 1.6;
}

.card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.card-link:hover {
    text-decoration: none;
    color: inherit;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.pro-pd {
    padding-top: 130px;
}

.gray-bg {
    background-color: var(--gray-50);
}

/* Scroll to Top Button */
#scrollTopBtn {
    display: none;
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99;
    border: none;
    outline: none;
    background: var(--accent-red-500);
    color: white;
    cursor: pointer;
    font-size: 20px;
    border-radius: var(--radius-full);
    width: 50px;
    height: 50px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

#scrollTopBtn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
    background: var(--accent-red-600);
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floating {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.float-animation {
    animation: floating 3s ease-in-out infinite;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ============================================
   HERO SECTION ENHANCEMENTS
   ============================================ */

.hero-section {
    position: relative;
    overflow: hidden;
    background: var(--dark-blue-600);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, rgba(2, 132, 199, 0.2), transparent 50%),
                radial-gradient(circle at bottom left, rgba(220, 38, 38, 0.1), transparent 50%);
    pointer-events: none;
}

/* ============================================
   LOADING & SPINNER
   ============================================ */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--primary-100);
    border-top: 4px solid var(--primary-600);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================================
   SELECT2 CUSTOMIZATION
   ============================================ */

body:not(.admin-page) .select2-container--default .select2-selection--single {
    padding-top: 4px;
    border-left: none !important;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    height: auto;
    min-height: 45px;
}

body:not(.admin-page) .select2-container--default .select2-selection--single:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

body:not(.admin-page) .select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--primary-500);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    :root {
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }
    
    .transparent-nav {
        padding: var(--spacing-sm);
    }
    
    .transparent-nav .navbar-collapse {
        background: white;
        backdrop-filter: blur(20px);
        border-radius: var(--radius-xl);
        margin-top: var(--spacing-md);
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
    }
    
    .transparent-nav .navbar-nav .nav-link {
        margin: var(--spacing-xs) 0;
        padding: var(--spacing-md);
    }
    
    .route-images-container {
        padding: 0 var(--spacing-sm);
        gap: var(--spacing-lg);
    }
    
    .route-image-item {
        padding: var(--spacing-sm);
        border-radius: var(--radius-xl);
    }
    
    .route-full-image {
        border-radius: var(--radius-lg);
    }
    
    .search-route-content {
        padding: var(--spacing-lg);
    }
    
    .glass-card {
        padding: var(--spacing-lg);
    }
    
    #scrollTopBtn {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    body:not(.admin-page) .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.875rem;
    }
    
    body:not(.admin-page) .form-control,
    body:not(.admin-page) .form-select {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

body:not(.admin-page) .btn:focus,
body:not(.admin-page) .form-control:focus,
body:not(.admin-page) .form-select:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   ADMIN PAGE FIXES
   ============================================ */

/* Ensure admin select dropdowns have proper colors */
.admin-page select,
.admin-page select option,
.swal2-container select,
.swal2-container select option {
    color: #495057 !important;
    background-color: #fff !important;
}

.admin-page select:focus,
.swal2-container select:focus {
    color: #495057 !important;
    background-color: #fff !important;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .transparent-nav,
    .footer,
    #scrollTopBtn {
        display: none;
    }
    
    .main-card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}