/* ============================================
   CSS CUSTOM PROPERTIES & DESIGN TOKENS
   ============================================ */
:root {
    /* Color Palette - Vibrant & Modern */
    --primary-hue: 200;
    --primary-sat: 95%;
    --primary-light: 55%;

    --color-primary: hsl(var(--primary-hue), var(--primary-sat), var(--primary-light));
    --color-primary-dark: hsl(var(--primary-hue), var(--primary-sat), 45%);
    --color-primary-light: hsl(var(--primary-hue), var(--primary-sat), 65%);

    --color-secondary: hsl(280, 85%, 60%);
    --color-accent: hsl(340, 90%, 60%);
    --color-success: hsl(150, 75%, 50%);
    --color-warning: hsl(45, 95%, 55%);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg,
            hsl(200, 95%, 55%) 0%,
            hsl(280, 85%, 60%) 100%);
    --gradient-hero: linear-gradient(135deg,
            hsl(220, 90%, 15%) 0%,
            hsl(260, 80%, 25%) 50%,
            hsl(200, 85%, 20%) 100%);
    --gradient-card: linear-gradient(135deg,
            rgba(255, 255, 255, 0.1) 0%,
            rgba(255, 255, 255, 0.05) 100%);

    /* Neutrals */
    --color-bg: hsl(220, 25%, 10%);
    --color-bg-light: hsl(220, 20%, 15%);
    --color-surface: hsl(220, 18%, 20%);
    --color-surface-light: hsl(220, 15%, 25%);

    --color-text: hsl(0, 0%, 95%);
    --color-text-muted: hsl(0, 0%, 70%);
    --color-text-dim: hsl(0, 0%, 50%);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;

    /* Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.4);

    --blur-sm: 8px;
    --blur-md: 16px;
    --blur-lg: 24px;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --container-width: 1280px;
    --navbar-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-full);
    border: 3px solid var(--color-bg-light);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(var(--blur-md));
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(17, 24, 39, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--navbar-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    font-family: var(--font-heading);
}

.logo-icon {
    font-size: var(--font-size-2xl);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-link {
    position: relative;
    padding: var(--space-xs) var(--space-sm);
    font-weight: 500;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
    transition: width var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--navbar-height);
}

.hero-background {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: -1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, hsl(200, 95%, 55%), transparent);
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, hsl(280, 85%, 60%), transparent);
    bottom: -10%;
    right: -10%;
    animation-delay: 7s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, hsl(340, 90%, 60%), transparent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -30px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

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

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
}

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

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

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(45deg);
    margin: var(--space-sm) auto 0;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: rotate(45deg) translateY(0);
    }

    50% {
        transform: rotate(45deg) translateY(10px);
    }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
}

.btn:hover::before {
    transform: translateX(0);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(var(--blur-sm));
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    font-size: var(--font-size-lg);
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-light);
}

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

.feature-card {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products {
    padding: var(--space-3xl) 0;
}

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

.section-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.filter-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-text);
    font-weight: 500;
    transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

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

.sort-select {
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.product-card {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-slow);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 255, 255, 0.2);
}

.product-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    z-index: 10;
}

.product-image-wrapper {
    position: relative;
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    overflow: hidden;
}

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

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

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

.product-header {
    margin-bottom: var(--space-md);
}

.product-name {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-xs);
}

.product-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

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

.spec-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.spec-value {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary-light);
}

.product-price {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
}

.color-selector {
    margin: var(--space-lg) 0;
}

.color-selector-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    display: block;
    font-weight: 500;
}

.color-swatches-wrapper {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    align-items: center;
}

.color-swatch {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.15);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.color-swatch:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

.color-swatch.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.25), 0 4px 12px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.selected-color-info {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
}

.selected-color-info strong {
    color: var(--color-text);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.btn-small {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
}

/* Loading Spinner */
.loading-spinner {
    text-align: center;
    padding: var(--space-3xl);
    grid-column: 1 / -1;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   COMPARISON SECTION
   ============================================ */
.comparison-section {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-light);
}

.comparison-container {
    margin-top: var(--space-2xl);
}

.comparison-hint {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.selected-products {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.comparison-chip {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-weight: 500;
}

.comparison-chip-remove {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    cursor: pointer;
    transition: background var(--transition-base);
}

.comparison-chip-remove:hover {
    background: rgba(255, 255, 255, 0.3);
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 var(--space-sm);
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md);
    text-align: left;
}

.comparison-table th {
    background: rgba(255, 255, 255, 0.05);
    font-weight: 600;
    border-radius: var(--radius-md);
}

.comparison-table td {
    background: rgba(255, 255, 255, 0.03);
}

.comparison-table tr td:first-child {
    font-weight: 600;
    color: var(--color-primary-light);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    padding: var(--space-3xl) 0;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text p {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-features {
    margin-top: var(--space-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.about-feature-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.about-feature-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateX(8px);
}

.about-feature-item .feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.about-feature-item h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-xs);
}

.about-feature-item p {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    margin: 0;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-description {
    color: var(--color-text-muted);
    margin: var(--space-lg) 0 var(--space-2xl);
    line-height: 1.8;
}

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

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

.contact-icon {
    font-size: var(--font-size-2xl);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-xs);
}

.contact-item p {
    color: var(--color-text-muted);
}

.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.form-group select option {
    background: var(--color-surface);
    color: var(--color-text);
    padding: var(--space-sm);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-bg-light);
    padding: var(--space-3xl) 0 var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand p {
    color: var(--color-text-muted);
    margin-top: var(--space-md);
    max-width: 400px;
}

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

.footer-column h4 {
    margin-bottom: var(--space-md);
    font-size: var(--font-size-lg);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--space-sm);
}

.footer-column a {
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

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

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

/* ============================================
   MODAL
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(var(--blur-sm));
    animation: fadeIn var(--transition-base);
}

.modal-content {
    position: relative;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow-y: auto;
    animation: slideUp var(--transition-slow);
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: var(--font-size-2xl);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 10;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--space-2xl);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   TOAST NOTIFICATION
   ============================================ */
.toast {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transform: translateY(150%);
    transition: all var(--transition-base);
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 70px;
        --space-3xl: 4rem;
    }

    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(17, 24, 39, 0.98);
        backdrop-filter: blur(var(--blur-md));
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

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

    .hero-stats {
        gap: var(--space-lg);
    }

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

    .filter-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    /* Modal responsive */
    .modal {
        padding: var(--space-sm);
    }

    .modal-content {
        max-height: 95vh;
    }

    .modal-body {
        padding: var(--space-lg);
    }

    .modal-close {
        top: var(--space-sm);
        right: var(--space-sm);
        width: 36px;
        height: 36px;
        font-size: var(--font-size-xl);
    }

    .modal-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

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

/* ============================================
   INDIVIDUAL PRODUCT PAGES
   ============================================ */
.product-hero {
    padding: calc(var(--space-3xl) + 60px) 0 var(--space-3xl);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
}

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

.product-hero-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.product-hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.product-price-large {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-xl);
}

.product-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.highlight-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.highlight-icon {
    font-size: 2rem;
}

.highlight-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-dim);
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.highlight-value {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary-light);
}

.product-colors-section {
    padding: var(--space-3xl) 0;
}

.product-colors-section h2 {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.color-series {
    margin-top: var(--space-2xl);
}

.color-series h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-lg);
    color: var(--color-primary-light);
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-lg);
}

.color-option {
    text-align: center;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.color-option:hover,
.color-option.active {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.color-swatch-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto var(--space-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.color-name {
    font-size: var(--font-size-base);
    font-weight: 500;
}

.product-specs-section {
    padding: var(--space-3xl) 0;
    background: rgba(255, 255, 255, 0.02);
}

.product-specs-section h2 {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-2xl);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.spec-item {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.spec-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-dim);
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.spec-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
}

.product-features-section {
    padding: var(--space-3xl) 0;
}

.product-features-section h2 {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-2xl);
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.feature-item-large {
    text-align: center;
    padding: var(--space-2xl);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.feature-item-large:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-8px);
}

.feature-icon-large {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.feature-item-large h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-md);
}

.feature-item-large p {
    color: var(--color-text-muted);
    line-height: 1.6;
}

.product-cta-section {
    padding: var(--space-3xl) 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
}

.product-cta-section h2 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.product-cta-section p {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2xl);
}

/* Responsive Design for Product Pages */
@media (max-width: 768px) {
    .product-hero-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .product-hero-content h1 {
        font-size: 2.5rem;
    }

    .product-price-large {
        font-size: 2.5rem;
    }

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

    .color-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

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

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

/* ============================================
   INDIVIDUAL PRODUCT PAGES
   ============================================ */
.product-hero {
    padding: calc(var(--space-3xl) + 60px) 0 var(--space-3xl);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
}

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

.product-hero-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.product-hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.product-price-large {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-xl);
}

.product-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.highlight-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.highlight-icon {
    font-size: 2rem;
}

.highlight-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-dim);
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.highlight-value {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary-light);
}

.product-colors-section {
    padding: var(--space-3xl) 0;
}

.product-colors-section h2 {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.color-series {
    margin-top: var(--space-2xl);
}

.color-series h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-lg);
    color: var(--color-primary-light);
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-md);
    max-width: 800px;
}

.color-option {
    text-align: center;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.color-option:hover,
.color-option.active {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.color-swatch-large {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 0 auto var(--space-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.color-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.product-specs-section {
    padding: var(--space-3xl) 0;
    background: rgba(255, 255, 255, 0.02);
}

.product-specs-section h2 {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-2xl);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    max-width: 800px;
    margin: 0 auto;
}

.spec-item {
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.spec-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-dim);
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.spec-value {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

.product-features-section {
    padding: var(--space-3xl) 0;
}

.product-features-section h2 {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-2xl);
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.feature-item-large {
    text-align: center;
    padding: var(--space-2xl);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.feature-item-large:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-8px);
}

.feature-icon-large {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.feature-item-large h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-md);
}

.feature-item-large p {
    color: var(--color-text-muted);
    line-height: 1.6;
}

.product-cta-section {
    padding: var(--space-3xl) 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
}

.product-cta-section h2 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.product-cta-section p {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2xl);
}

/* Responsive Design for Product Pages */
@media (max-width: 768px) {
    .product-hero-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .product-hero-content h1 {
        font-size: 2.5rem;
    }

    .product-price-large {
        font-size: 2.5rem;
    }

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

    .color-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }

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

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

/* Product Colors Inline (beside image) */
.product-colors-inline {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.product-colors-inline h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-lg);
    color: var(--color-primary-light);
}

.color-series-inline {
    margin-bottom: var(--space-lg);
}

.color-series-inline:last-child {
    margin-bottom: 0;
}

.color-series-inline h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.color-grid-inline {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: var(--space-sm);
}

/* ============================================
   DEDICATED PAGES (ABOUT/CONTACT)
   ============================================ */
.contact-page-hero {
    padding: calc(var(--space-3xl) + 80px) 0 var(--space-3xl);
    background: var(--gradient-hero);
    text-align: center;
}

.contact-page-content {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
}

.about-page-hero {
    padding: calc(var(--space-3xl) + 80px) 0 var(--space-3xl);
    background: var(--gradient-hero);
    text-align: center;
}

.about-page-content {
    padding: var(--space-3xl) 0;
    line-height: 1.8;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

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