/* ============================================================================
   AI Bulk Video Creator Pro - Landing Page Styles
   Modern, responsive design with smooth animations
   Updated: January 16, 2026 - Added video features
   ============================================================================ */

/* ============================================================================
   CSS Variables (Design Tokens)
   ============================================================================ */
:root {
    /* Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #ec4899;
    --secondary-dark: #db2777;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    --dark-bg: #0f172a;
    --dark-bg-secondary: #1e293b;
    --dark-bg-tertiary: #334155;
    
    --light-bg: #ffffff;
    --light-bg-secondary: #f8fafc;
    --light-bg-tertiary: #f1f5f9;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    --gradient-secondary: linear-gradient(135deg, #ec4899 0%, #f59e0b 100%);
    --gradient-dark: linear-gradient(135deg, #1e293b 0%, #0f172a 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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* 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', sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Container */
    --container-max-width: 1280px;
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--light-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-sm);
}

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

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

/* ============================================================================
   Buttons
   ============================================================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    background: var(--gradient-primary);
    color: var(--text-white);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    background: var(--light-bg);
    color: var(--text-primary);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: 2px solid var(--light-bg-tertiary);
    transition: all var(--transition-base);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.125rem 2rem;
    font-size: 1.125rem;
}

.btn-nav {
    padding: 0.625rem 1.25rem;
    background: var(--gradient-primary);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
}

.btn-nav:hover {
    transform: scale(1.05);
}

/* ============================================================================
   Navigation
   ============================================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--light-bg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 999;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    padding: var(--spacing-sm);
    text-align: center;
    font-weight: 500;
}

/* ============================================================================
   Hero Section
   ============================================================================ */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    overflow: hidden;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: #92400e;
    margin-bottom: var(--spacing-md);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero-title {
    max-width: 900px;
    margin: 0 auto var(--spacing-md);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-image {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.screenshot {
    width: 100%;
    border-radius: var(--radius-2xl);
}

.floating-card {
    position: absolute;
    background: var(--light-bg);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
    animation: float 3s ease-in-out infinite;
}

.floating-card i {
    color: var(--success-color);
}

.card-1 {
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: -5%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 10%;
    left: -5%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ============================================================================
   Demo Section (Main YouTube Video)
   ============================================================================ */
.demo-section {
    padding: var(--spacing-3xl) 0;
    background: var(--light-bg-secondary);
}

.demo-video-wrapper {
    position: relative;
    max-width: 960px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    background: #000;
    cursor: pointer;
    transition: transform var(--transition-base);
}

.demo-video-wrapper:hover {
    transform: scale(1.02);
}

.demo-video-wrapper iframe {
    width: 100%;
    height: 540px;
    border: none;
    display: block;
}

/* ============================================================================
   Short Vertical Demos Section (4x2 Grid with 9:16 aspect ratio)
   ============================================================================ */
.short-demos {
    padding: var(--spacing-3xl) 0;
    background: var(--light-bg);
}

.demos-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.demos-row {
    position: relative;
}

.short-demos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.video-card {
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

/* 9:16 Aspect Ratio Container */
.video-aspect {
    position: relative;
    width: 100%;
    padding-top: 177.78%; /* 16 / 9 * 100 = 177.78% for 9:16 */
    background: #000;
    overflow: hidden;
}

.video-aspect iframe,
.video-aspect video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Hover Preview Video (Desktop Only) */
.video-card .preview-video {
    display: none;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity var(--transition-base);
}

@media (min-width: 769px) {
    .video-card:hover .preview-video {
        display: block;
        opacity: 1;
    }
    
    .video-card:hover .video-skeleton {
        opacity: 0;
    }
}

/* Video Info */
.video-info {
    padding: var(--spacing-md);
    text-align: center;
}

.video-info h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.video-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Play Button Overlay */
.video-card::after {
    content: '\f04b';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.9);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.video-card:hover::after {
    opacity: 1;
}

/* ============================================================================
   Skeleton Loaders (No Layout Shift)
   ============================================================================ */
.video-skeleton {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        #1e293b 0%,
        #334155 50%,
        #1e293b 100%
    );
    background-size: 200% 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-base);
}

.skeleton-shimmer {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

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

.skeleton-play-btn {
    position: relative;
    z-index: 2;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.7);
}

/* Hide skeleton when video loads */
.video-card.loaded .video-skeleton {
    display: none;
}

/* ============================================================================
   Video Modal (Full Screen Playback)
   ============================================================================ */
.video-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.video-modal.active {
    display: flex;
    opacity: 1;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    z-index: 2;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    animation: modalSlideIn 0.3s ease-out;
}

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

.modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-base);
    z-index: 3;
}

.modal-close:hover {
    background: var(--danger-color);
    transform: rotate(90deg);
}

.modal-video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    background: #000;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.modal-video-wrapper iframe,
.modal-video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ============================================================================
   Swiper Carousel (Mobile Only)
   ============================================================================ */
.swiper {
    width: 100%;
    height: 100%;
}

.swiper-button-next,
.swiper-button-prev {
    display: none; /* Hidden by default, shown on mobile */
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.9);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
}

.swiper-button-next::after,
.swiper-button-prev::after {
    font-size: 1rem;
    font-weight: bold;
}

.swiper-pagination {
    display: none; /* Hidden by default, shown on mobile */
}

.swiper-pagination-bullet {
    background: var(--primary-color);
    opacity: 0.5;
}

.swiper-pagination-bullet-active {
    opacity: 1;
}

/* ============================================================================
   Problem Section
   ============================================================================ */
.problem-section {
    padding: var(--spacing-3xl) 0;
    background: var(--light-bg);
}

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

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--light-bg-tertiary);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.problem-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--light-bg-secondary);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

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

.problem-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

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

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

/* ============================================================================
   Features Section
   ============================================================================ */
.features-section {
    padding: var(--spacing-3xl) 0;
    background: var(--light-bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--light-bg);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    color: var(--text-white);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

.feature-card > p {
    margin-bottom: var(--spacing-md);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.feature-list i {
    color: var(--success-color);
    font-size: 0.75rem;
}

/* ============================================================================
   How It Works Section
   ============================================================================ */
.how-it-works {
    padding: var(--spacing-3xl) 0;
    background: var(--light-bg);
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.step-card {
    position: relative;
    flex: 1;
    min-width: 250px;
    max-width: 320px;
    padding: var(--spacing-xl);
    background: var(--light-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--text-white);
    font-weight: 700;
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
}

.step-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    background: var(--light-bg-secondary);
    border-radius: var(--radius-full);
    font-size: 2rem;
    color: var(--primary-color);
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-light);
}

/* ============================================================================
   Pricing Section
   ============================================================================ */
.pricing-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-dark);
    color: var(--text-white);
}

.pricing-section .section-header h2,
.pricing-section .section-header p {
    color: var(--text-white);
}

.pricing-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.regular-price {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
    color: var(--text-light);
}

.crossed-price {
    text-decoration: line-through;
    color: #ef4444;
    font-weight: 600;
    font-size: 1.5rem;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.pricing-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: var(--gradient-secondary);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

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

.pricing-header h3 {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-sm);
}

.currency {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-light);
}

.amount {
    font-size: 4rem;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1;
}

.period {
    font-size: 1rem;
    color: var(--text-light);
}

.savings {
    color: var(--success-color);
    font-weight: 600;
    font-size: 1.125rem;
}

.pricing-features {
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-white);
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-item i {
    color: var(--success-color);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.payment-buttons {
    margin-bottom: var(--spacing-xl);
}

.payment-buttons h4 {
    text-align: center;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.payment-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-lg);
}

.payment-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.paypal-btn {
    background: #0070ba;
    color: var(--text-white);
}

.paypal-btn:hover {
    background: #005a94;
}

.stripe-btn {
    background: #635bff;
    color: var(--text-white);
}

.stripe-btn:hover {
    background: #5248e6;
}

.payment-btn i {
    font-size: 2rem;
}

.payment-btn-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.payment-btn-title {
    font-size: 1.125rem;
}

.payment-btn-subtitle {
    font-size: 0.875rem;
    opacity: 0.8;
}

.guarantee {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border: 2px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-lg);
    color: var(--text-white);
}

.guarantee i {
    font-size: 2rem;
    color: var(--success-color);
    flex-shrink: 0;
}

.guarantee strong {
    display: block;
    margin-bottom: 0.25rem;
}

.guarantee p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-light);
}

.trust-badges {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-light);
    font-size: 0.875rem;
}

.trust-badge i {
    color: var(--success-color);
}

/* ============================================================================
   FAQ Section
   ============================================================================ */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: var(--light-bg);
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--light-bg);
    border: 2px solid var(--light-bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.faq-question h3 {
    font-size: 1.125rem;
    margin: 0;
}

.faq-question i {
    color: var(--primary-color);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--spacing-lg) var(--spacing-md);
}

.faq-answer p {
    margin: 0;
}

/* ============================================================================
   CTA Section
   ============================================================================ */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-primary);
    text-align: center;
}

.cta-content h2,
.cta-content p {
    color: var(--text-white);
}

.cta-content h2 {
    margin-bottom: var(--spacing-md);
}

.cta-content > p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    margin-bottom: var(--spacing-md);
}

.cta-note {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--text-white);
    font-size: 0.875rem;
    font-weight: 600;
}

/* ============================================================================
   Footer
   ============================================================================ */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    background: var(--dark-bg);
    color: var(--text-light);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    color: var(--text-white);
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: var(--text-light);
}

.footer-links h4 {
    color: var(--text-white);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    display: block;
    padding: 0.25rem 0;
    color: var(--text-light);
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

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

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin: 0;
}

/* ============================================================================
   Scroll to Top Button
   ============================================================================ */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
}

/* ============================================================================
   Responsive Design
   ============================================================================ */
@media (max-width: 1024px) {
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .step-arrow {
        display: none;
    }
    
    /* Show 2 columns for short demos */
    .short-demos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* Navigation */
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    /* Hero */
    .hero {
        padding: 5rem 0 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        gap: var(--spacing-lg);
    }
    
    .floating-card {
        display: none;
    }
    
    /* Demo video */
    .demo-video-wrapper iframe {
        height: 300px;
    }
    
    /* Short demos - Enable carousel */
    .short-demos-grid {
        display: flex;
        grid-template-columns: none;
    }
    
    .swiper-button-next,
    .swiper-button-prev {
        display: flex;
    }
    
    .swiper-pagination {
        display: block;
    }
    
    /* Sections */
    .section-header h2 {
        font-size: 2rem;
    }
    
    .problems-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* Modal */
    .modal-close {
        top: -40px;
        width: 35px;
        height: 35px;
    }
    
    /* Pricing */
    .pricing-card {
        padding: var(--spacing-lg);
    }
    
    .amount {
        font-size: 3rem;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .scroll-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-badge {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    .pricing-badge {
        font-size: 0.75rem;
    }
    
    .payment-btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .payment-btn i {
        font-size: 1.5rem;
    }
    
    /* Demo video */
    .demo-video-wrapper iframe {
        height: 250px;
    }
    
    /* Single column for mobile */
    .short-demos-grid {
        grid-template-columns: 1fr;
    }
}

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

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

/* ============================================================================
   Print Styles
   ============================================================================ */
@media print {
    .navbar,
    .mobile-menu,
    .cta-section,
    .scroll-top,
    .video-modal {
        display: none;
    }
}