/**
 * POSTech Solutions - Corporate Website
 * Main Stylesheet
 */

/* ============================================
   CSS Variables
============================================ */
:root {
    /* Colors */
    --primary: #0a2540;
    --primary-light: #1a4a7a;
    --primary-dark: #051a2e;
    --secondary: #00d4aa;
    --secondary-light: #00ffcc;
    --secondary-dark: #00a886;
    --accent: #ff6b35;
    --accent-light: #ff8c5c;
    
    /* Neutrals */
    --white: #ffffff;
    --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;
    --black: #000000;
    
    /* Status */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Typography */
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 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);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Container */
    --container-max: 1280px;
    --container-padding: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

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

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--primary);
    color: var(--white);
    padding: var(--space-md) var(--space-lg);
    z-index: 10000;
    transition: top var(--transition-fast);
}

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

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

.section {
    padding: var(--space-4xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-label {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
}

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

h1 { font-size: clamp(2rem, 6vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 4vw, 2rem); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--space-md);
}

p:last-child {
    margin-bottom: 0;
}

/* ============================================
   Buttons
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

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

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

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

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

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

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* ============================================
   Header
============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.header-top {
    background: var(--primary);
    padding: var(--space-sm) 0;
    display: none;
}

@media (min-width: 768px) {
    .header-top {
        display: block;
    }
}

.header-top-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info {
    display: flex;
    gap: var(--space-lg);
}

.contact-info a {
    color: var(--gray-300);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.contact-info a:hover {
    color: var(--secondary);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    color: var(--gray-300);
    font-size: 0.875rem;
}

.social-links a:hover {
    color: var(--secondary);
}

/* Navbar */
.navbar {
    padding: var(--space-md) 0;
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
}

.logo-text span {
    color: var(--secondary);
}

/* Nav Menu */
.nav-menu {
    display: none;
    gap: var(--space-xs);
}

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

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-weight: 500;
    color: var(--gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
    color: var(--primary);
    background: var(--gray-50);
}

.nav-menu > li > a i {
    font-size: 0.625rem;
    transition: transform var(--transition-fast);
}

.nav-menu > li:hover > a i {
    transform: rotate(180deg);
}

/* Dropdown */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-menu li a i {
    width: 20px;
    color: var(--secondary);
}

.dropdown-menu li a:hover {
    background: var(--gray-50);
    color: var(--primary);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.search-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.search-toggle:hover {
    background: var(--gray-100);
    color: var(--primary);
}

/* Mobile Toggle */
.mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

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

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
@media (max-width: 1023px) {
    .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        padding: var(--space-lg);
        flex-direction: column;
        gap: var(--space-sm);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }
    
    .nav-menu.active {
        display: flex;
        transform: translateX(0);
    }
    
    .nav-menu > li > a {
        padding: var(--space-md);
        font-size: 1.125rem;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--space-lg);
        display: none;
    }
    
    .has-dropdown.open .dropdown-menu {
        display: block;
    }
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--primary);
    padding: var(--space-xl) 0;
    z-index: 1001;
    transform: translateY(-100%);
    transition: transform var(--transition-base);
}

.search-overlay.active {
    transform: translateY(0);
}

.search-form {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.search-form input {
    flex: 1;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--gray-600);
    color: var(--white);
    font-size: 1.5rem;
    padding: var(--space-md) 0;
    outline: none;
}

.search-form input::placeholder {
    color: var(--gray-400);
}

.search-form input:focus {
    border-color: var(--secondary);
}

.search-form button {
    color: var(--white);
    font-size: 1.25rem;
    padding: var(--space-md);
}

.search-form button:hover {
    color: var(--secondary);
}

/* ============================================
   Hero Section
============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--space-4xl) + 80px) 0 var(--space-4xl);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%2300d4aa" opacity="0.1"/></svg>');
    background-size: 30px 30px;
    opacity: 0.5;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50%;
    right: -20%;
    width: 80%;
    height: 100%;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

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

.hero-text h1 {
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.hero-text h1 span {
    color: var(--secondary);
}

.hero-text p {
    color: var(--gray-300);
    font-size: 1.25rem;
    margin-bottom: var(--space-xl);
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-3xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
    line-height: 1;
}

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

.hero-visual {
    display: none;
}

@media (min-width: 1024px) {
    .hero-visual {
        display: block;
        position: relative;
    }
}

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

.hero-image img {
    width: 100%;
    height: auto;
}

.hero-float-card {
    position: absolute;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-md) var(--space-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    animation: float 3s ease-in-out infinite;
}

.hero-float-card.card-1 {
    top: 10%;
    left: -20%;
}

.hero-float-card.card-2 {
    bottom: 20%;
    right: -15%;
    animation-delay: 1s;
}

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

.float-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
}

.float-text h4 {
    font-size: 1rem;
    margin-bottom: 0;
}

.float-text p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0;
}

/* ============================================
   Categories Section
============================================ */
.categories {
    background: var(--gray-50);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

@media (min-width: 1280px) {
    .categories-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.category-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}

.category-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-50));
    color: var(--primary);
    border-radius: var(--radius-xl);
    font-size: 1.75rem;
    transition: all var(--transition-base);
}

.category-card:hover .category-icon {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
}

.category-card h3 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

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

/* ============================================
   Products Section
============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xl);
}

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

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

@media (min-width: 1280px) {
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 1px solid var(--gray-100);
}

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

.product-image {
    position: relative;
    height: 220px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.product-image .placeholder-icon {
    font-size: 4rem;
    color: var(--gray-300);
}

.product-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--secondary);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
}

.product-actions {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    opacity: 0;
    transform: translateX(10px);
    transition: all var(--transition-base);
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateX(0);
}

.product-actions button {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.product-actions button:hover {
    background: var(--primary);
    color: var(--white);
}

.product-content {
    padding: var(--space-lg);
}

.product-category {
    font-size: 0.75rem;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.product-content h3 {
    font-size: 1.125rem;
    margin: var(--space-xs) 0;
    line-height: 1.3;
}

.product-content h3 a {
    color: var(--primary);
    transition: color var(--transition-fast);
}

.product-content h3 a:hover {
    color: var(--secondary-dark);
}

.product-sku {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: var(--space-sm);
}

.product-price {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.product-price small {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 400;
}

/* ============================================
   Features Section
============================================ */
.features {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect x="0" y="0" width="100" height="100" fill="none" stroke="%2300d4aa" stroke-width="0.5" opacity="0.1"/></svg>');
    background-size: 50px 50px;
}

.features .section-label {
    color: var(--secondary);
}

.features .section-title {
    color: var(--white);
}

.features .section-subtitle {
    color: var(--gray-400);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xl);
    position: relative;
    z-index: 1;
}

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

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

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
    border-radius: var(--radius-xl);
    font-size: 1.75rem;
}

.feature-card h3 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--gray-400);
    font-size: 0.9375rem;
    margin: 0;
}

/* ============================================
   CTA Section
============================================ */
.cta {
    background: var(--gray-50);
}

.cta-content {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl) var(--space-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-content::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
}

.cta-content h2 {
    color: var(--primary);
    margin-bottom: var(--space-md);
    position: relative;
}

.cta-content p {
    color: var(--primary-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    position: relative;
}

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

/* ============================================
   Page Header
============================================ */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: calc(var(--space-4xl) + 80px) 0 var(--space-3xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%2300d4aa" opacity="0.1"/></svg>');
    background-size: 30px 30px;
}

.page-header h1 {
    color: var(--white);
    margin-bottom: var(--space-md);
    position: relative;
}

.page-header p {
    color: var(--gray-300);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    position: relative;
}

.breadcrumb a {
    color: var(--gray-400);
}

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

.breadcrumb span {
    color: var(--gray-500);
}

.breadcrumb .current {
    color: var(--white);
}

/* ============================================
   Products Page
============================================ */
.products-page {
    padding: var(--space-3xl) 0;
}

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

@media (min-width: 1024px) {
    .products-layout {
        grid-template-columns: 280px 1fr;
    }
}

/* Sidebar */
.products-sidebar {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar-section {
    margin-bottom: var(--space-xl);
}

.sidebar-section:last-child {
    margin-bottom: 0;
}

.sidebar-section h3 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--gray-100);
}

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

.category-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    color: var(--gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.category-list a:hover,
.category-list a.active {
    background: var(--gray-50);
    color: var(--primary);
}

.category-list a.active {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
    font-weight: 600;
}

.category-list a i {
    font-size: 0.875rem;
    margin-right: var(--space-sm);
    width: 20px;
}

.category-count {
    font-size: 0.75rem;
    background: var(--gray-100);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.category-list a.active .category-count {
    background: rgba(255, 255, 255, 0.3);
}

/* Products Content */
.products-content {
    min-width: 0;
}

.products-toolbar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--gray-200);
}

.results-count {
    color: var(--gray-500);
}

.results-count strong {
    color: var(--primary);
}

.sort-select {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--gray-700);
    cursor: pointer;
}

/* Product Detail */
.product-detail {
    padding: var(--space-3xl) 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
}

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

.product-gallery {
    background: var(--gray-50);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
}

.product-main-image {
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-md);
}

.product-main-image img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
}

.product-main-image .placeholder-icon {
    font-size: 8rem;
    color: var(--gray-300);
}

.product-info h1 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--gray-200);
}

.product-meta span {
    color: var(--gray-500);
}

.product-meta strong {
    color: var(--primary);
}

.product-info .product-price {
    font-size: 2rem;
    margin-bottom: var(--space-lg);
}

.product-description {
    margin-bottom: var(--space-xl);
}

.product-description h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
}

.specifications {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.specifications h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
}

.spec-list {
    display: grid;
    gap: var(--space-sm);
}

.spec-item {
    display: flex;
    padding: var(--space-sm) 0;
    border-bottom: 1px dashed var(--gray-200);
}

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

.spec-item .spec-label {
    width: 40%;
    color: var(--gray-500);
}

.spec-item .spec-value {
    width: 60%;
    color: var(--primary);
    font-weight: 500;
}

.product-actions-detail {
    display: flex;
    gap: var(--space-md);
}

/* ============================================
   About Page
============================================ */
.about-intro {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

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

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.about-image-overlay {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--secondary);
    color: var(--primary);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-image-overlay .number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.about-image-overlay .text {
    font-weight: 600;
}

.about-text h2 {
    margin-bottom: var(--space-lg);
}

.about-text p {
    color: var(--gray-600);
    margin-bottom: var(--space-md);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.about-feature i {
    color: var(--secondary);
    font-size: 1.25rem;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xl);
}

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

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

.team-card {
    text-align: center;
}

.team-image {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--space-md);
    border-radius: var(--radius-full);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--gray-300);
    overflow: hidden;
}

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

.team-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.team-card .role {
    color: var(--secondary);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.team-social {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
}

.team-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-600);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

/* ============================================
   Contact Page
============================================ */
.contact-section {
    padding: var(--space-3xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr 1.5fr;
    }
}

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

.contact-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    display: flex;
    gap: var(--space-md);
}

.contact-card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-card-content h3 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.contact-card-content p {
    color: var(--gray-600);
    margin: 0;
}

.contact-card-content a {
    color: var(--primary);
}

.contact-card-content a:hover {
    color: var(--secondary-dark);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.contact-form-wrapper h2 {
    margin-bottom: var(--space-xl);
}

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

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

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--space-xs);
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: var(--white);
    color: var(--gray-700);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 4px rgba(0, 212, 170, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* Honeypot field - hidden from users */
.hp-field {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
}

/* ============================================
   Support Page
============================================ */
.support-options {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

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

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

.support-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-base);
}

.support-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}

.support-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-50));
    color: var(--primary);
    border-radius: var(--radius-xl);
    font-size: 2rem;
    transition: all var(--transition-base);
}

.support-card:hover .support-card-icon {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

.support-card h3 {
    margin-bottom: var(--space-sm);
}

.support-card p {
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
}

/* FAQ Section */
.faq-section {
    background: var(--gray-50);
}

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

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    text-align: left;
    font-weight: 600;
    color: var(--primary);
    background: var(--white);
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-question i {
    font-size: 0.875rem;
    transition: transform var(--transition-fast);
}

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

.faq-answer {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--gray-600);
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* ============================================
   Footer
============================================ */
.footer {
    background: var(--primary);
    color: var(--gray-300);
}

.footer-top {
    padding: var(--space-4xl) 0;
}

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

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

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }
}

.footer-about {
    max-width: 350px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.footer-logo .logo-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--primary);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
}

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

.footer-about p {
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--gray-300);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--secondary);
    color: var(--primary);
}

.footer-col h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--space-lg);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

.footer-links a i {
    font-size: 0.625rem;
    color: var(--secondary);
}

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

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

.footer-contact li {
    display: flex;
    gap: var(--space-md);
}

.footer-contact i {
    color: var(--secondary);
    width: 20px;
    flex-shrink: 0;
    margin-top: 4px;
}

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

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

.footer-bottom {
    padding: var(--space-lg) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.footer-bottom p {
    margin: 0;
    font-size: 0.875rem;
}

.footer-bottom-links {
    display: flex;
    gap: var(--space-lg);
}

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

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

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--secondary);
    color: var(--primary);
    transform: translateY(-3px);
}

/* ============================================
   Alerts
============================================ */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid var(--error);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid var(--warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
    border: 1px solid var(--info);
}

/* ============================================
   Pagination
============================================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-xs);
    margin-top: var(--space-3xl);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--space-md);
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination a {
    background: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.pagination a:hover {
    background: var(--gray-50);
    border-color: var(--primary);
    color: var(--primary);
}

.pagination span.current {
    background: var(--primary);
    color: var(--white);
}

.pagination span.dots {
    background: none;
    border: none;
    color: var(--gray-400);
}

/* ============================================
   Empty State
============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-4xl) var(--space-xl);
}

.empty-state i {
    font-size: 5rem;
    color: var(--gray-300);
    margin-bottom: var(--space-lg);
}

.empty-state h3 {
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--gray-500);
    margin-bottom: var(--space-xl);
}

/* ============================================
   Utilities
============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

@media (min-width: 768px) {
    .d-md-none { display: none; }
    .d-md-block { display: block; }
    .d-md-flex { display: flex; }
}

@media (min-width: 1024px) {
    .d-lg-none { display: none; }
    .d-lg-block { display: block; }
    .d-lg-flex { display: flex; }
}