/* =================================================================
   THE BOOK FLIGHT - PREMIUM DESIGN SYSTEM v4.0
   Advanced UI/UX with glassmorphism, micro-animations, dark-light modes
   LAST UPDATED: March 7, 2026
================================================================= */

/* =================================================================
   DESIGN TOKENS (Cosmic AI v6.1)
================================================================= */
:root {
    /* Primary Brand Color Palette */
    --primary: #d0021b;
    --primary-glow: rgba(208, 2, 27, 0.4);
    --secondary: #ffffff;
    --secondary-glow: rgba(255, 255, 255, 0.4);
    
    /* Accents */
    --accent-blue: #3b82f6;
    --accent-purple: #7c3aed;
    --accent-green: #22c55e;
    --accent-amber: #f59e0b;
    --accent-red: #d0021b;

    /* Neural Theme (Pure Dark) */
    --tbf-bg: #000000;
    --tbf-surface: #0a0a0a;
    --tbf-card: rgba(10, 10, 10, 0.6);
    --tbf-border: rgba(255, 255, 255, 0.12);
    --tbf-border-hover: rgba(255, 255, 255, 0.25);
    
    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    --text-glow: 0 0 12px var(--primary-glow);

    /* Glass Effect */
    --glass-bg: rgba(7, 11, 20, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(20px);
    --glass-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);

    /* Typography */
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing & Misc */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-xl: 40px;
    --radius-full: 9999px;
    
    --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-base: 0.3s var(--ease-premium);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--tbf-bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition-fast); }

/* =================================================================
   CONTAINER
================================================================= */
.container,
.tbf-container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* =================================================================
   SECTION SYSTEM
================================================================= */
.content-section,
.tbf-section {
    padding: var(--section-gap) 0;
    position: relative;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary);
    background: var(--primary-light);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(208, 2, 27, 0.12);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: clamp(15px, 1.8vw, 18px);
    color: var(--text-secondary);
    max-width: 640px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* =================================================================
   PREMIUM CARDS
================================================================= */
.premium-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.premium-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent-blue), var(--accent-purple));
    opacity: 0;
    transition: var(--transition-normal);
}

.premium-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.premium-card:hover::before { opacity: 1; }

/* Glass Card Variant */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    padding: 28px;
    transition: var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* =================================================================
   DEAL & ROUTE CARDS
================================================================= */
.deal-card, .route-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
    height: 100%;
}

.deal-card:hover, .route-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    border-color: var(--border-hover);
}

.deal-card-image, .route-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition-normal);
}

.deal-card:hover .deal-card-image,
.route-card:hover .route-card-image {
    transform: scale(1.05);
}

.deal-card-body, .route-card-body {
    padding: 20px;
}

.offer-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, var(--primary), #ff4d6d);
    color: white;
    font-size: 11px;
    font-weight: 800;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
    z-index: 2;
    box-shadow: 0 4px 16px rgba(208, 2, 27, 0.3);
}

.deal-card-price {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--primary);
    margin-top: 8px;
}

.route-card-image {
    height: 150px;
}

/* =================================================================
   BUTTONS
================================================================= */
.btn-primary,
.tbf-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary), #e8102e);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: none;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: -50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.25), transparent 50%);
    transform: translateX(-60%);
    transition: 0.5s ease;
    opacity: 0;
}

.btn-primary:hover,
.tbf-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(208, 2, 27, 0.3);
    color: white;
}

.btn-primary:hover::after { transform: translateX(20%); opacity: 1; }

.btn-outline-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(208, 2, 27, 0.2);
}

/* =================================================================
   HERO SECTION (Premium)
================================================================= */
.hero-section {
    min-height: clamp(640px, 78vh, 900px);
    padding: clamp(56px, 8vh, 96px) 0 96px;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.35) 0%,
        rgba(0, 0, 0, 0.4) 40%,
        rgba(0, 0, 0, 0.3) 100%
    );
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
    text-align: center;
}

.hero-content h1 {
    color: white;
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin: 0 0 16px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(16px, 2vw, 20px);
    max-width: 760px;
    margin: 0 auto 24px;
    line-height: 1.6;
}

/* Search widget */
.search-widget-container {
    max-width: 960px;
    margin: 24px auto 0;
}

#adivaha-wrapper {
    box-shadow: 0 22px 50px rgba(0, 0, 0, 0.28);
    border-radius: var(--radius-md);
    overflow: hidden;
}

/* =================================================================
   STATS COUNTER (Animated)
================================================================= */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.stat-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
}

.stat-number {
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 900;
    font-family: var(--font-heading);
    background: linear-gradient(135deg, var(--primary), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 8px;
}

/* =================================================================
   AI FEATURE CARDS
================================================================= */
.ai-feature-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 800;
    padding: 5px 10px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(59, 130, 246, 0.1));
    color: var(--accent-purple);
    border: 1px solid rgba(124, 58, 237, 0.15);
    letter-spacing: 0.5px;
}

.ai-feature-badge::before {
    content: '✨';
    font-size: 12px;
}

.ai-pulse {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.15);
    color: var(--accent-green);
    font-weight: 700;
    font-size: 12px;
}

.ai-pulse .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.5);
    animation: pulse 2s infinite;
}

/* =================================================================
   FAQ ACCORDION
================================================================= */
.faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--border-hover);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 700;
    font-size: 15px;
    color: var(--text-primary);
    transition: var(--transition-fast);
    gap: 16px;
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-question .icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
    transition: var(--transition-normal);
}

.faq-item.active .faq-question .icon {
    transform: rotate(45deg);
    background: var(--primary);
    color: white;
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease-smooth), padding 0.3s;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 14px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

/* =================================================================
   TESTIMONIALS
================================================================= */
.testimonial-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
}

.testimonial-card:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.testimonial-stars {
    color: var(--accent-amber);
    font-size: 16px;
    margin-bottom: 12px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 16px;
}

.testimonial-name {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
}

.testimonial-role {
    font-size: 12px;
    color: var(--text-muted);
}

/* =================================================================
   TRUST & CREDIBILITY
================================================================= */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.trust-item {
    text-align: center;
    padding: 28px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    transition: var(--transition-normal);
}

.trust-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.06);
}

.trust-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: var(--primary-light);
    color: var(--primary);
}

.trust-label {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
}

.trust-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* =================================================================
   BLOG CARDS
================================================================= */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.blog-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
}

.blog-card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: var(--transition-normal);
}

.blog-card:hover .blog-card-image {
    transform: scale(1.05);
}

.blog-card-body {
    padding: 20px;
}

.blog-card-date {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 8px;
}

.blog-card-title {
    font-size: 16px;
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 8px;
}

.blog-card-excerpt {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* =================================================================
   DOWNLOAD APP SECTION
================================================================= */
#download-app-section .app-icon {
    width: 50px;
    margin-right: 15px;
}
#download-app-section .app-offer-text {
    font-size: 20px;
    line-height: 1.5;
}
.google-play-badge {
    width: 180px;
    transition: var(--transition-normal);
}
.google-play-badge:hover {
    transform: scale(1.08);
}
.qr-code {
    max-width: 250px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    border-radius: var(--radius-md);
}

/* =================================================================
   FOOTER STYLES
================================================================= */
.footer-section {
    /* Footer has its own inline styles */
}
.payment-methods {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 15px;
    height: 100%;
}
.payment-methods img {
    height: 25px !important;
    width: auto !important;
    max-width: 100%;
}

/* =================================================================
   ANIMATIONS
================================================================= */
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.95); }
}

/* =================================================================
   UIVERSE COMPONENTS
================================================================= */

/* 1. Neon AI Button (cuddly-turkey-5) */
.btn-ai-neon {
    position: relative;
    width: auto;
    min-width: 160px;
    height: 54px;
    background-color: var(--bg-primary);
    display: flex;
    align-items: center;
    color: var(--text-primary);
    flex-direction: column;
    justify-content: center;
    border: none;
    padding: 12px 32px;
    gap: 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 800;
    font-size: 16px;
    transition: all 0.3s var(--ease-smooth);
}

.btn-ai-neon::before {
    content: '';
    position: absolute;
    inset: 0;
    left: -2px;
    top: -1px;
    margin: auto;
    width: calc(100% + 4px);
    height: calc(100% + 4px);
    border-radius: calc(var(--radius-md) + 2px);
    background: linear-gradient(-45deg, var(--secondary) 0%, var(--primary) 100%);
    z-index: -10;
    pointer-events: none;
    transition: all 0.6s var(--ease-smooth);
}

.btn-ai-neon::after {
    content: "";
    z-index: -1;
    position: absolute;
    inset: 0;
    background: linear-gradient(-45deg, var(--secondary) 0%, var(--primary) 100%);
    filter: blur(15px);
    opacity: 0;
    transition: all 0.6s var(--ease-smooth);
}

.btn-ai-neon:hover::after { opacity: 1; }
.btn-ai-neon:hover::before { filter: blur(2px); }
.btn-ai-neon:active::before { transform: scale(0.95); filter: blur(2px); }

/* 2. Glass AI Card (grumpy-mule-23 adaptation) */
.glass-ai-card {
    position: relative;
    width: 100%;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 30px 20px;
    border-radius: var(--radius-md);
    backdrop-filter: var(--glass-blur);
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all 0.4s var(--ease-smooth);
}

.glass-ai-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-glow);
    background-color: rgba(255, 255, 255, 0.05);
}

.glass-ai-card .city-name {
    font-weight: 800;
    font-size: 1.2em;
    letter-spacing: 2px;
    color: var(--text-primary);
    text-transform: uppercase;
}

.glass-ai-card .travel-tag {
    font-weight: 500;
    font-size: 0.8em;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.glass-ai-card .price-tag {
    font-size: 2.2em;
    font-weight: 900;
    color: var(--primary);
    font-family: 'Space Grotesk', sans-serif;
}

/* 3. Neural Loader (fuzzy-fish-86) */
.neural-loader-overlay {
    position: fixed;
    inset: 0;
    background: rgba(7, 11, 20, 0.9);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.neural-loader {
    width: 150px;
    height: 150px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader_cube {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 30px;
}

.loader_cube--glowing {
    z-index: 2;
    background-color: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.loader_cube--color {
    z-index: 1;
    filter: blur(5px);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    animation: loadRotate 2.5s ease-in-out infinite;
}

@keyframes loadRotate {
    0%, 100% { transform: rotate(0deg) scale(1.1); }
    50% { transform: rotate(-90deg) scale(1); }
}

/* 4. Premium Sash (massive-earwig-94) */
.premium-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.premium-sash {
    position: absolute;
    overflow: hidden;
    width: 120px;
    height: 120px;
    top: -5px;
    left: -5px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.premium-sash::before {
    content: 'EXCLUSIVE';
    position: absolute;
    width: 150%;
    height: 32px;
    background: linear-gradient(45deg, #f09819 0%, #ff512f 100%);
    transform: rotate(-45deg) translateY(-20px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.1em;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

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

.animate-fade-in {
    animation: fadeInUp 0.6s var(--ease-smooth) both;
}

.animate-slide-in {
    animation: slideIn 0.5s var(--ease-smooth) both;
}

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

/* Staggered animation delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Loading shimmer */
.shimmer {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, #e2e8f0 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* =================================================================
   GRADIENT TEXT
================================================================= */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent-blue), var(--accent-purple));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
}

/* =================================================================
   UTILITY CLASSES
================================================================= */
.text-center { text-align: center; }
.text-primary-color { color: var(--primary); }
.text-muted { color: var(--text-muted); }
.fw-bold { font-weight: 700; }
.fw-black { font-weight: 900; }
.bg-white { background-color: var(--bg-secondary); }
.rounded-image { border-radius: var(--radius-lg); }
.container-shadow {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-lg);
    padding: 40px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
}

/* =================================================================
   RESPONSIVE DESIGN
================================================================= */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 56px 0 72px;
    }

    .hero-content h1 {
        font-size: clamp(28px, 6vw, 40px);
    }

    .search-widget-container {
        margin-top: 16px;
    }

    .deal-card, .route-card {
        margin-bottom: 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 20px 12px;
    }

    .trust-grid {
        grid-template-columns: 1fr 1fr;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    #download-app-section .btn-primary {
        width: 100%;
        margin-bottom: 15px;
    }

    #download-app-section .google-play-badge {
        width: 160px;
    }

    .copyright-text {
        text-align: center;
        margin-bottom: 20px;
    }

    .payment-methods {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .section-title {
        font-size: 24px;
    }

    .premium-card, .glass-card {
        padding: 20px;
    }

    .trust-grid {
        grid-template-columns: 1fr;
    }
}

/* =================================================================
   ACCESSIBILITY
================================================================= */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
    border-radius: 4px;
}

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