/* ================================================
   BookDito - Global Styles
   Professional, Clean, Trust-Focused Design
   ================================================ */

/* ===== Font Awesome Import ===== */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/all.min.css');


/* ===== CSS Variables (Design System) ===== */
:root {
    /* Primary Brand Colors - Professional Grey/Blue */
    --primary-color: #4b5563;
    --primary-dark: #374151;
    --primary-light: #6b7280;

    /* Secondary Colors - Subtle Blue */
    --secondary-color: #3b82f6;
    --secondary-dark: #2563eb;
    --secondary-light: #60a5fa;

    /* Neutral Colors */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --white: #ffffff;
    --gray-50: #fafbfc;
    --gray-100: #f7f8fa;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Header Colors - Dark Gradient */
    --header-bg: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --header-text: #ffffff;

    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Layout */
    --container-width: 1200px;
    --border-radius: 0.75rem;
    --border-radius-lg: 1rem;
    --transition: all 0.3s ease;

    /* 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), 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);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* ===== Container ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Header & Navigation ===== */
.header {
    background-color: #1f2937;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--header-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 28px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}


.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-menu a {
    color: var(--header-text);
    font-weight: 500;
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-menu a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary-light);
}

.nav-menu a.active {
    color: var(--primary-light);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    background: none;
    border: none;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--header-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background-color: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
}

.btn-success:hover {
    background-color: var(--secondary-dark);
    border-color: var(--secondary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

/* ===== Hero Section ===== */
.hero {
    background-color: #4b5563;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    color: var(--white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
    animation: heroSlideshow 18s infinite;
}

@keyframes heroSlideshow {

    0%,
    33% {
        background-image: url('../images/hero-bus.png');
    }

    34%,
    66% {
        background-image: url('../images/hero-operator.png');
    }

    67%,
    100% {
        background-image: url('../images/hero-travelers.png');
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(75, 85, 99, 0.7);
    z-index: 0;
}

.hero>* {
    position: relative;
    z-index: 1;
}

.hero h1 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Sections ===== */
.section {
    padding: var(--spacing-3xl) 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ===== Grid System ===== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ===== Cards ===== */
.card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

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

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 32px;
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
}

.card:hover .card-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ===== Feature Cards ===== */
.feature-card {
    text-align: center;
}

.feature-card .card-icon {
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* ===== Stats Section ===== */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item h3 {
    font-size: var(--font-size-4xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-item p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* ===== Location Cards ===== */
.location-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.location-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: #4b5563;
}

.location-content {
    padding: var(--spacing-lg);
}

.location-content h3 {
    margin-bottom: var(--spacing-xs);
}

.location-content .country {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    font-size: var(--font-size-base);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(75, 85, 99, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-required {
    color: var(--error);
}

/* ===== Footer ===== */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.footer-section p {
    color: var(--gray-300);
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--gray-300);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--gray-300);
    font-size: var(--font-size-sm);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-300);
    transition: var(--transition);
}

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

/* ===== Breadcrumb ===== */
.breadcrumb {
    background-color: var(--gray-50);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--gray-200);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.breadcrumb-list li::after {
    content: '/';
    color: var(--gray-300);
}

.breadcrumb-list li:last-child::after {
    display: none;
}

.breadcrumb-list a {
    color: var(--text-secondary);
}

.breadcrumb-list a:hover {
    color: var(--primary-color);
}

/* ===== Content Page Layout ===== */
.content-section {
    padding: var(--spacing-2xl) 0;
}

.content-section h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--gray-200);
}

.content-section h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.content-section ul,
.content-section ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
    color: var(--text-secondary);
}

.content-section li {
    margin-bottom: var(--spacing-xs);
}

/* ===== Accessibility ===== */
.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;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-sm);
    text-decoration: none;
    z-index: 100;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #1f2937;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-lg) 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: var(--spacing-md);
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: var(--font-size-sm);
    }

    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: var(--font-size-base);
    }
}

/* ===== Print Styles ===== */
@media print {

    .header,
    .footer,
    .btn,
    .hero-cta {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }
}