/* ================================================
   HI CAD - Main Stylesheet
   Vertical Scroll Layout
   ================================================ */

/* ================================================
   CSS Variables - Design System
   ================================================ */
:root {
    /* Colors */
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --accent: #f59e0b;
    --accent-dark: #d97706;

    --dark: #1e293b;
    --darker: #0f172a;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    --white: #ffffff;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-8: 4rem;
    --space-10: 5rem;
    --space-12: 6rem;
    --space-16: 8rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px 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);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
}

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

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

ul {
    list-style: none;
}

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

input, textarea, select {
    font-family: inherit;
}

/* ================================================
   Container
   ================================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-6);
    }
}

/* ================================================
   Typography
   ================================================ */
h1, h2, h3, h4, h5, h6 {
    color: var(--gray-900);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

@media (min-width: 768px) {
    h1 { font-size: 3.5rem; }
    h2 { font-size: 2.5rem; }
    h3 { font-size: 1.75rem; }
}

/* ================================================
   Buttons
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

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

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

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

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

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

.btn-white:hover {
    background: var(--gray-100);
    box-shadow: var(--shadow-lg);
}

/* ================================================
   Header
   ================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--transition);
}

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

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.nav-desktop {
    display: none;
    align-items: center;
    gap: var(--space-6);
}

@media (min-width: 1024px) {
    .nav-desktop {
        display: flex;
    }
}

.nav-link {
    font-weight: 500;
    color: var(--gray-600);
    padding: var(--space-2) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition);
}

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

.nav-link:hover::after {
    width: 100%;
}

.menu-toggle {
    display: block;
    font-size: 1.5rem;
    color: var(--gray-700);
    padding: var(--space-2);
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }

    .header .btn {
        display: inline-flex;
    }
}

@media (max-width: 1023px) {
    .header .btn:not(.btn-sm) {
        display: none;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-200);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.mobile-nav-link {
    display: block;
    padding: var(--space-3);
    font-weight: 500;
    color: var(--gray-700);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    background: var(--gray-100);
    color: var(--primary);
}

/* ================================================
   Main Content
   ================================================ */
.main-content {
    min-height: 100vh;
}

/* ================================================
   Sections
   ================================================ */
.section {
    padding: var(--space-12) 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--space-16) 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-4);
}

.section-title {
    margin-bottom: var(--space-3);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: var(--space-10);
}

/* ================================================
   Hero Section
   ================================================ */
.section-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--dark) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
    padding-top: 150px;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-12);
    }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

@media (min-width: 1024px) {
    .hero-content {
        text-align: left;
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary-light);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-4);
    border: 1px solid rgba(129, 140, 248, 0.3);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -2px;
    margin-bottom: var(--space-3);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: var(--space-4);
}

@media (max-width: 768px) {
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto var(--space-6);
    line-height: 1.8;
}

@media (min-width: 1024px) {
    .hero-description {
        margin-left: 0;
        margin-right: 0;
    }
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

@media (min-width: 1024px) {
    .hero-buttons {
        justify-content: flex-start;
    }
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
    padding: 0 var(--space-4);
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 1024px) {
    .hero-stats {
        justify-content: flex-start;
        margin-left: 0;
        margin-right: 0;
    }
}

.stat-item {
    text-align: center;
    flex: 0 0 auto;
    min-width: 100px;
    padding: 0 var(--space-2);
}

.stat-number {
    display: block;
    font-size: 2.3rem;
    font-weight: 700;
    color: var(--primary-light);
    white-space: nowrap;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-400);
    white-space: nowrap;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-400);
}

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

.hero-sidebar-header {
    margin-bottom: var(--space-4);
    text-align: center;
}

@media (min-width: 1024px) {
    .hero-sidebar-header {
        text-align: left;
    }
}

.hero-sidebar-header h3 {
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.08);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-featured-products {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .hero-featured-products {
        grid-template-columns: repeat(2, 1fr);
    }
}

.featured-product-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition);
    text-align: left;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
    backdrop-filter: blur(6px);
    cursor: pointer;
    text-decoration: none;
}

.featured-product-card:hover {
    transform: translateY(-4px);
    border-color: rgba(129, 140, 248, 0.45);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
    background: rgba(255, 255, 255, 0.1);
}

.featured-product-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.25), rgba(16, 185, 129, 0.25));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.featured-product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-product-icon {
    font-size: 2.75rem;
    color: var(--gray-300);
}

.featured-product-badge {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.featured-coming-soon {
    background: rgba(245, 158, 11, 0.9);
    color: var(--white);
}

.featured-active {
    background: rgba(16, 185, 129, 0.9);
    color: var(--white);
}

.featured-product-info {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    flex: 1;
}

.featured-product-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-product-tagline {
    font-size: 0.875rem;
    color: var(--gray-300);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-product-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.featured-product-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
}

.featured-product-link {
    font-size: 0.875rem;
    color: var(--primary-light);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.hero-decoration {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.hero-shape-1 {
    width: 800px;
    height: 800px;
    background: var(--primary);
    top: -300px;
    right: -300px;
}

.hero-shape-2 {
    width: 600px;
    height: 600px;
    background: var(--secondary);
    bottom: -200px;
    left: -200px;
}

/* Empty hero sidebar state */
.hero-sidebar-empty {
    display: none;
}

/* Hero Video Section */
.hero-video-wrapper {
    margin-top: var(--space-6);
}

.hero-video-wrapper.hidden {
    display: none;
}

.hero-video-container {
    position: relative;
    width: 100%;
    padding-bottom: 65%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

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

.hero-video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    color: var(--gray-400);
}

.hero-video-placeholder i {
    font-size: 3rem;
}

@media (max-width: 1023px) {
    .hero-sidebar-empty-mobile {
        display: none;
    }
}

/* ================================================
   Benefits Section
   ================================================ */
.section-benefits {
    background: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 640px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.benefit-card {
    background: var(--gray-50);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(79, 70, 229, 0.2);
    background: var(--white);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    font-size: 2rem;
    color: var(--white);
    transition: all var(--transition);
}

.benefit-card:hover .benefit-icon {
    box-shadow: 0 0 30px rgba(79, 70, 229, 0.4);
    transform: scale(1.1);
}

.benefit-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-2);
}

.benefit-description {
    color: var(--gray-500);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ================================================
   Features Section
   ================================================ */
.section-features {
    background: var(--gray-100);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.feature-card {
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    transition: all var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(79, 70, 229, 0.2);
}

.feature-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    color: var(--white);
}

.feature-content {
    flex: 1;
}

.feature-title {
    font-size: 1.125rem;
    margin-bottom: var(--space-2);
}

.feature-description {
    color: var(--gray-500);
    font-size: 0.9375rem;
    margin-bottom: var(--space-2);
}

.feature-tag {
    display: inline-block;
    background: var(--gray-100);
    color: var(--primary);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ================================================
   Products Section
   ================================================ */
.section-products {
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(79, 70, 229, 0.3);
}

.product-badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: var(--accent);
    color: var(--white);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    z-index: 1;
}

/* Coming Soon Badge */
.badge-coming-soon {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--white);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.badge-coming-soon i {
    font-size: 0.75rem;
}

.product-image {
    height: 180px;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-icon-large {
    font-size: 4rem;
    color: var(--gray-400);
}

/* Coming Soon Card Styling */
.product-card.coming-soon {
    opacity: 0.95;
}

.product-card.coming-soon .product-info {
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.03) 0%, transparent 100%);
}

.coming-soon-overlay {
    position: absolute;
    inset: 0;
    background: rgba(245, 158, 11, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #f59e0b;
}

.coming-soon-overlay i {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.product-info {
    padding: var(--space-5);
}

.product-category {
    display: inline-block;
    background: var(--gray-100);
    color: var(--primary);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.product-name {
    font-size: 1.25rem;
    margin-bottom: var(--space-1);
}

.product-tagline {
    color: var(--gray-500);
    font-size: 0.9375rem;
    margin-bottom: var(--space-3);
}

.product-features {
    margin-bottom: var(--space-4);
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) 0;
    color: var(--gray-600);
    font-size: 0.9375rem;
}

.product-features li i {
    color: var(--secondary);
    font-size: 0.75rem;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.stars {
    color: var(--accent);
    display: flex;
    gap: 2px;
}

.stars i {
    font-size: 0.875rem;
}

.product-rating span {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-200);
}

/* Coming Soon Footer - Homepage */
.product-footer-coming-soon {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-200);
}

.countdown-timer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(16, 185, 129, 0.1));
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 45px;
}

.countdown-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    line-height: 1.2;
}

.countdown-label {
    font-size: 0.625rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.countdown-separator {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-400);
    padding-bottom: 12px;
}

.countdown-message {
    text-align: center;
    font-size: 0.875rem;
    color: var(--success);
    font-weight: 600;
}

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

.price-label {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.price-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* ================================================
   Pricing Section
   ================================================ */
.section-pricing {
    background: var(--gray-100);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        align-items: start;
    }
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
    position: relative;
}

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

.pricing-featured {
    border: 2px solid var(--primary);
    box-shadow: 0 10px 40px rgba(79, 70, 229, 0.2);
}

@media (min-width: 768px) {
    .pricing-featured {
        transform: scale(1.05);
    }

    .pricing-featured:hover {
        transform: scale(1.05) translateY(-4px);
    }
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.pricing-header {
    margin-bottom: var(--space-4);
}

.pricing-name {
    font-size: 1.5rem;
    margin-bottom: var(--space-1);
}

.pricing-tagline {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.pricing-price {
    margin-bottom: var(--space-5);
}

.price-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.price-note {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--space-1);
}

.pricing-features {
    text-align: left;
    margin-bottom: var(--space-5);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    color: var(--gray-600);
}

.pricing-features li i {
    color: var(--secondary);
    width: 20px;
}

.pricing-features li.disabled {
    color: var(--gray-400);
}

.pricing-features li.disabled i {
    color: var(--gray-400);
}

/* ================================================
   How To Use Section
   ================================================ */
.section-howto {
    background: var(--white);
}

.steps-container {
    max-width: 800px;
    margin: 0 auto;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
}

.step-content {
    flex: 1;
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    background: var(--gray-50);
    padding: var(--space-5);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.step-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.step-text h3 {
    margin-bottom: var(--space-2);
    font-size: 1.125rem;
}

.step-text p {
    color: var(--gray-500);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.step-connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), var(--primary-light));
    margin-left: 24px;
    border-radius: 1px;
}

/* ================================================
   FAQ Section
   ================================================ */
.section-faq {
    background: var(--gray-100);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
}

.faq-item:hover {
    border-color: rgba(79, 70, 229, 0.3);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-5);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    text-align: left;
    cursor: pointer;
}

.faq-question span {
    flex: 1;
    padding-right: var(--space-4);
}

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

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--space-5) var(--space-4);
    color: var(--gray-600);
    line-height: 1.8;
}

/* ================================================
   CTA Section
   ================================================ */
.section-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.cta-box {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@media (min-width: 768px) {
    .cta-box {
        padding: var(--space-12);
    }
}

.cta-content h2 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: var(--space-3);
}

@media (min-width: 768px) {
    .cta-content h2 {
        font-size: 2.5rem;
    }
}

.cta-content p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-6);
}

.cta-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* ================================================
   Contact Section
   ================================================ */
.section-contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.contact-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    color: var(--white);
}

.contact-details h4 {
    margin-bottom: var(--space-1);
}

.contact-details p {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.contact-details a {
    color: var(--primary);
    font-weight: 600;
}

.social-links {
    display: flex;
    gap: var(--space-3);
    padding-top: var(--space-4);
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    color: var(--gray-600);
    font-size: 1.25rem;
    transition: all var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.contact-form-container {
    background: var(--gray-50);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.contact-form-container h3 {
    margin-bottom: var(--space-5);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.9375rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

/* ================================================
   Footer
   ================================================ */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--space-12) 0 var(--space-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-slogan {
    color: var(--accent);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.footer-description {
    color: var(--gray-400);
    font-size: 0.9375rem;
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: var(--space-4);
    font-size: 1rem;
}

.footer-links a {
    display: block;
    color: var(--gray-400);
    padding: var(--space-1) 0;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-links a i {
    margin-right: var(--space-2);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-700);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-4);
}

.footer-legal a {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-legal a:hover {
    color: var(--white);
}

/* ================================================
   Utilities
   ================================================ */
.hidden { display: none !important; }
.visible { display: block !important; }

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll animations */
@media (prefers-reduced-motion: no-preference) {
    .section {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .section.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================================
   Floating Social Buttons
   ================================================ */
.floating-social {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 9999;
}

.float-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    text-decoration: none;
}

.float-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

/* Zalo */
.float-zalo {
    background: linear-gradient(135deg, #0068ff 0%, #004cbf 100%);
}

.float-zalo:hover {
    background: linear-gradient(135deg, #007aff 0%, #0055cc 100%);
}

/* Facebook */
.float-facebook {
    background: linear-gradient(135deg, #1877f2 0%, #0d65d9 100%);
}

.float-facebook:hover {
    background: linear-gradient(135deg, #1a88ff 0%, #1570d4 100%);
}

/* YouTube */
.float-youtube {
    background: linear-gradient(135deg, #ff0000 0%, #cc0000 100%);
}

.float-youtube:hover {
    background: linear-gradient(135deg, #ff2222 0%, #e60000 100%);
}

/* TikTok */
.float-tiktok {
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    position: relative;
    overflow: hidden;
}

.float-tiktok::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #25f4ee 0%, #fe2c55 50%, #25f4ee 100%);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.float-tiktok:hover::before {
    opacity: 1;
}

.float-tiktok i {
    position: relative;
    z-index: 1;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .floating-social {
        bottom: 15px;
        right: 15px;
        gap: 8px;
    }
    
    .float-btn {
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
    }
}