/* ============================================
   SPV EDA - Sapphire Theme Stylesheet
   Colors: Blue, Light Green, White
   ============================================ */

/* CSS Variables */
:root {
    /* Primary Colors - Sapphire */
    --primary-900: #082567;
    --primary-800: #0D3B8A;
    --primary-700: #0F52BA;
    --primary-600: #2563EB;
    --primary-500: #4A7FD4;
    --primary-400: #6B8DD6;
    --primary-300: #8EADD9;
    --primary-200: #B8CCE8;
    --primary-100: #DDE8F5;
    --primary-50: #F0F5FC;

    /* Accent Colors - Light Green */
    --accent-700: #15803D;
    --accent-600: #16A34A;
    --accent-500: #22C55E;
    --accent-400: #4ADE80;
    --accent-300: #86EFAC;
    --accent-200: #BBF7D0;
    --accent-100: #DCFCE7;
    --accent-50: #F0FDF4;

    /* Neutral Colors */
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;

    /* White */
    --white: #FFFFFF;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-500) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-500) 0%, var(--primary-500) 100%);
    --gradient-hero: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-700) 50%, var(--primary-500) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

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

    /* Spacing */
    --container-max: 1200px;
    --section-padding: 100px 0;

    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-500);
}

.btn-outline:hover {
    background: var(--primary-50);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

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

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 48px;
    height: 40px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-900);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
}

.nav-links a:hover {
    color: var(--primary-600);
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    vertical-align: middle;
    transition: transform 0.2s;
}

.nav-dropdown:hover > a::after {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 560px;
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.06);
    padding: 20px 24px;
    z-index: 1001;
    margin-top: 8px;
}

.nav-dropdown.open .nav-dropdown-menu {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 24px;
}

.nav-dropdown-category {
    padding: 8px 0 4px;
}

.nav-dropdown-category:first-child {
    padding-top: 0;
}

.nav-dropdown-category h4 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-400);
    margin-bottom: 4px;
    padding: 0 8px;
}

.nav-dropdown-category a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.nav-dropdown-category a:hover {
    background: var(--primary-50);
    color: var(--primary-700);
}

.nav-dropdown-category .coming-soon {
    color: var(--gray-400);
    font-size: 10px;
    font-weight: 600;
    background: var(--gray-100);
    padding: 1px 6px;
    border-radius: 3px;
    margin-left: auto;
}

.nav-dropdown-category .nav-desc {
    font-size: 11px;
    font-weight: 400;
    color: var(--gray-400);
    margin-left: 4px;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .nav-dropdown-menu {
        position: static;
        transform: none;
        min-width: 100%;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0 0 8px;
        display: none;
    }
    .nav-dropdown.open .nav-dropdown-menu {
        display: grid;
        grid-template-columns: 1fr;
    }
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
                      radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.12) 0%, transparent 50%);
    z-index: -1;
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--white);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--white);
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-300) 0%, var(--accent-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero .btn-primary {
    background: var(--white);
    color: var(--primary-700);
    box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.2);
}

.hero .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(0, 0, 0, 0.3);
}

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

.hero .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-graphic {
    position: relative;
    width: 400px;
    height: 400px;
}

.chip-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
}

.chip-icon svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.orbit {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.orbit-1 {
    width: 250px;
    height: 250px;
    animation: spin 20s linear infinite;
}

.orbit-2 {
    width: 320px;
    height: 320px;
    animation: spin 30s linear infinite reverse;
}

.orbit-3 {
    width: 400px;
    height: 400px;
    animation: spin 40s linear infinite;
}

.orbit::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--primary-400);
    border-radius: 50%;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px var(--primary-400);
}

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

@keyframes spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    background: var(--primary-50);
    color: var(--primary-600);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.category-section {
    margin-bottom: 64px;
    padding-bottom: 64px;
    border-bottom: 1px solid var(--gray-200);
}

.category-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.category-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.category-icon i {
    font-size: 24px;
    color: var(--white);
}

.category-icon.coming-soon-icon {
    background: linear-gradient(135deg, var(--gray-600) 0%, var(--gray-500) 100%);
}

.category-header h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.category-header p {
    font-size: 14px;
    color: var(--gray-500);
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: var(--accent-100);
    color: var(--accent-700);
    font-size: 11px;
    font-weight: 600;
    border-radius: 100px;
    margin-left: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 0;
    align-items: stretch;
}

.products-grid.coming-soon-grid .product-card {
    position: relative;
}

.products-grid.coming-soon-grid .product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(249, 250, 251, 0.5);
    border-radius: 16px;
    pointer-events: none;
}

.coming-soon-label {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 6px 12px;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 11px;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.product-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px 32px;
    position: relative;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.product-card a.product-image-link {
    display: block;
    text-decoration: none;
}

.product-card h3 a {
    color: inherit;
    text-decoration: none;
}

.product-card h3 a:hover {
    color: var(--primary-600);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.product-card.coming-soon:hover {
    transform: none;
    box-shadow: none;
    cursor: default;
}

.product-card.featured {
    border: 2px solid var(--primary-500);
    background: linear-gradient(180deg, var(--primary-50) 0%, var(--white) 100%);
}

.product-card.featured::before {
    transform: scaleX(1);
    background: var(--accent-500);
}

.product-image {
    width: 100%;
    height: 140px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    border-radius: 12px;
    overflow: hidden;
}

.product-image svg {
    width: 100%;
    height: 100%;
}

.product-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-50);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.product-icon i {
    font-size: 28px;
    color: var(--primary-600);
}

.product-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 6px 12px;
    background: var(--gradient-accent);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
}

.product-flagship-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 6px 12px;
    background: linear-gradient(135deg, #082567, #0F52BA);
    color: #4ade80;
    font-size: 11px;
    font-weight: 600;
    border-radius: 100px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    z-index: 10;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.product-card.flagship {
    border: 1px solid rgba(15, 82, 186, 0.3);
    background: linear-gradient(180deg, rgba(15, 82, 186, 0.03) 0%, var(--white) 100%);
}

.product-card.flagship:hover {
    border-color: rgba(15, 82, 186, 0.5);
    box-shadow: 0 8px 30px rgba(8, 37, 103, 0.12);
}

.product-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.product-subtitle {
    font-size: 14px;
    color: var(--primary-600);
    font-weight: 500;
    margin-bottom: 16px;
}

.product-description {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 24px;
    line-height: 1.7;
}

.product-features {
    margin-bottom: 32px;
}

.product-card > .btn {
    margin-top: auto;
    align-self: flex-start;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray-600);
}

.product-features li i {
    color: var(--accent-500);
    font-size: 14px;
}

.sub-products {
    display: flex;
    gap: 24px;
    justify-content: center;
}

.sub-product {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    padding: 20px 32px;
    border-radius: 12px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.sub-product:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-md);
}

.sub-product-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-50);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sub-product-icon i {
    font-size: 20px;
    color: var(--accent-600);
}

.sub-product-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.sub-product-info span {
    font-size: 13px;
    color: var(--gray-500);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: var(--section-padding);
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 32px;
}

.feature-card {
    text-align: center;
    padding: 40px 32px;
    border-radius: 16px;
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--gray-50);
}

.feature-icon {
    width: 72px;
    height: 72px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.feature-icon i {
    font-size: 28px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
    padding: 80px 24px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 80% 50%, rgba(74, 127, 212, 0.3) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.cta .btn-primary {
    background: var(--white);
    color: var(--primary-700);
}

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

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--section-padding);
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--gray-900);
    margin: 16px 0 24px;
}

.about-content p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-stats {
    display: flex;
    gap: 48px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--gray-200);
}

.about-stat {
    display: flex;
    flex-direction: column;
}

.about-stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-600);
}

.about-stat-label {
    font-size: 14px;
    color: var(--gray-500);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-graphic {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.about-card {
    background: var(--gray-50);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
}

.about-card:first-child {
    grid-column: span 2;
}

.about-card:hover {
    background: var(--primary-50);
    transform: translateY(-4px);
}

.about-card i {
    font-size: 32px;
    color: var(--primary-600);
    margin-bottom: 12px;
}

.about-card span {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-50);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 18px;
    color: var(--primary-600);
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 15px;
    color: var(--gray-500);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--gray-900);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 64px;
    margin-bottom: 64px;
}

.footer-brand p {
    color: var(--gray-400);
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.7;
}

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

.footer-links h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    font-size: 14px;
    color: var(--gray-400);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--gray-800);
}

.footer-bottom p {
    font-size: 14px;
    color: var(--gray-500);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.footer-social a:hover {
    background: var(--primary-600);
    color: var(--white);
}

/* ============================================
   PRODUCT DETAIL PAGES
   ============================================ */
.product-hero {
    padding: 160px 24px 80px;
    background: var(--gradient-hero);
    text-align: center;
}

.product-hero h1 {
    font-size: 48px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.product-hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto;
}

.product-version {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}

.version-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
}

.version-date {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.product-details {
    padding: 80px 24px;
}

.product-image-showcase {
    padding: 0 24px 60px;
}

.showcase-image {
    max-width: var(--container-max);
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
}

.showcase-image svg {
    width: 100%;
    height: auto;
    display: block;
}

.product-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    max-width: var(--container-max);
    margin: 0 auto;
}

.product-feature {
    display: flex;
    gap: 24px;
}

.product-feature-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-50);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-feature-icon i {
    font-size: 28px;
    color: var(--primary-600);
}

.product-feature h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.product-feature p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ============================================
   SUB-PRODUCTS DETAIL SECTION
   ============================================ */
.sub-products-detail {
    padding: 80px 24px;
    background: var(--gray-50);
}

.sub-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.sub-product-detail {
    background: var(--white);
    border-radius: 16px;
    padding: 40px 32px;
    text-align: center;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    cursor: pointer;
}

.sub-product-detail:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-300);
}

.sub-product-detail-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-50);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.sub-product-detail-icon i {
    font-size: 36px;
    color: var(--accent-600);
}

.sub-product-detail h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.sub-product-detail p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 24px;
}

/* ============================================
   AUTH SECTION
   ============================================ */
.auth-section {
    min-height: calc(100vh - 72px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    background: var(--gray-50);
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1000px;
    width: 100%;
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.auth-card {
    padding: 48px;
}

.auth-header {
    text-align: center;
    margin-bottom: 40px;
}

.auth-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.auth-logo svg {
    width: 60px;
    height: 60px;
}

.auth-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.auth-header p {
    font-size: 15px;
    color: var(--gray-500);
}

.auth-form .form-group {
    margin-bottom: 20px;
}

.auth-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 16px;
}

.input-icon input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    font-size: 15px;
    font-family: inherit;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    transition: var(--transition);
}

.input-icon input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.auth-form .form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--gray-600);
    cursor: pointer;
}

.checkbox-label input {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-600);
}

.forgot-link {
    font-size: 14px;
    color: var(--primary-600);
    font-weight: 500;
}

.forgot-link:hover {
    color: var(--primary-700);
}

.auth-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-100);
}

.auth-footer p {
    font-size: 14px;
    color: var(--gray-500);
}

.auth-footer a {
    color: var(--primary-600);
    font-weight: 600;
}

.auth-visual {
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
}

.auth-visual-content {
    color: var(--white);
    max-width: 320px;
}

.auth-visual-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.auth-visual-content p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.auth-benefits {
    list-style: none;
}

.auth-benefits li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
}

.auth-benefits li i {
    color: var(--accent-400);
    font-size: 18px;
}

@media (max-width: 768px) {
    .auth-container {
        grid-template-columns: 1fr;
    }

    .auth-visual {
        display: none;
    }

    .auth-card {
        padding: 32px 24px;
    }
}

/* ============================================
   COOKIE CONSENT BANNER
   ============================================ */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--gray-900);
    padding: 20px 24px;
    z-index: 9999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.cookie-text {
    flex: 1;
}

.cookie-text p {
    font-size: 14px;
    color: var(--gray-300);
    line-height: 1.6;
}

.cookie-text a {
    color: var(--primary-400);
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.cookie-btn {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.cookie-btn-accept {
    background: var(--primary-600);
    color: white;
}

.cookie-btn-accept:hover {
    background: var(--primary-700);
}

.cookie-btn-settings {
    background: transparent;
    color: var(--gray-300);
    border: 1px solid var(--gray-600);
}

.cookie-btn-settings:hover {
    background: var(--gray-800);
}

.cookie-btn-reject {
    background: transparent;
    color: var(--gray-400);
}

.cookie-btn-reject:hover {
    color: var(--gray-300);
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-actions {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 40px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .products-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-width: 480px;
        margin: 0 auto 48px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .products-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
    }

    .product-card {
        padding: 28px 24px;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }

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

    .hero h1 {
        font-size: 40px;
    }

    .section-header h2 {
        font-size: 32px;
    }

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

    .sub-products {
        flex-direction: column;
        align-items: stretch;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .product-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 32px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .cta-actions {
        flex-direction: column;
    }
}