/*
Theme Name: Poline Valve Theme
Theme URI: https://example.com/poline-theme
Author: Custom Development
Author URI: https://example.com
Description: A professional WordPress theme for industrial valve manufacturing company. Features custom post types for products, responsive design, and modern aesthetics.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: poline-theme
Tags: industrial, manufacturing, products, responsive, custom-post-types
*/

/* ==========================================================================
   CSS Variables - Design System
   ========================================================================== */
:root {
    /* Primary Colors */
    --color-primary: #1a4d8f;
    --color-primary-dark: #0d3a6e;
    --color-primary-light: #2563a8;

    /* Secondary Colors */
    --color-secondary: #e63946;
    --color-secondary-dark: #c1121f;
    --color-secondary-light: #ff4d5a;

    /* Accent Colors */
    --color-accent: #f8961e;
    --color-accent-dark: #e07b00;
    --color-accent-light: #ffa940;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;

    /* Background Colors */
    --bg-light: #f5f7fa;
    --bg-dark: #1a1a2e;
    --bg-section: #f0f4f8;

    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Font Sizes */
    --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: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Container */
    --container-max: 1320px;
    --container-padding: 1rem;

    /* Header */
    --header-height: 80px;
    --header-height-mobile: 70px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

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

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

a:hover {
    color: var(--color-primary-dark);
}

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

ul, ol {
    list-style: none;
}

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

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

.section--light {
    background-color: var(--bg-light);
}

.section--dark {
    background-color: var(--bg-dark);
    color: var(--color-white);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

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

.btn--secondary:hover {
    background-color: var(--color-secondary-dark);
    border-color: var(--color-secondary-dark);
    color: var(--color-white);
}

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

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

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

.btn--white:hover {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-100);
}

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

.btn--sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

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

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

.header-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.site-logo {
    display: flex;
    align-items: center;
}

.site-logo img {
    height: 50px;
    width: auto;
}

.site-logo-text {
    font-family: var(--font-primary);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.main-navigation {
    display: flex;
    align-items: center;
}

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

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

.nav-menu > li > a {
    display: block;
    padding: var(--spacing-sm) 0;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-800);
    transition: color var(--transition-fast);
}

.nav-menu > li > a:hover,
.nav-menu > li.current-menu-item > a {
    color: var(--color-primary);
}

/* Dropdown Menu */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: var(--color-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

.nav-menu > li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .sub-menu li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.nav-menu .sub-menu li a:hover {
    background-color: var(--bg-light);
    color: var(--color-primary);
}

/* Dropdown Arrow */
.menu-item-has-children > a::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-left: 6px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform var(--transition-fast);
}

.menu-item-has-children:hover > a::after {
    transform: rotate(-135deg);
}

/* Header CTA */
.header-cta {
    margin-left: var(--spacing-xl);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-gray-800);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

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

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--header-height);
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('assets/images/hero-pattern.svg') repeat;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    max-width: 900px;
    padding: var(--spacing-2xl);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-xl);
    line-height: 1.1;
}

.hero-title span {
    color: var(--color-accent);
}

.hero-description {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-image {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 50%;
    max-width: 600px;
    opacity: 0.3;
}

/* Hero Slider */
.hero-slider {
    position: relative;
    min-height: 100vh;
}

.hero-slide {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
}

.hero-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, rgba(26, 77, 143, 0.95) 0%, rgba(26, 77, 143, 0.7) 50%, transparent 100%);
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.section-subtitle {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    margin-bottom: var(--spacing-md);
}

.section-title span {
    color: var(--color-secondary);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
}

/* ==========================================================================
   Product Cards
   ========================================================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.product-card-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background-color: var(--bg-light);
}

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

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

.product-card-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-secondary);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    border-radius: var(--radius-sm);
}

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

.product-card-code {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.product-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-900);
}

.product-card-title a {
    color: inherit;
}

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

.product-card-excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
}

.product-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.product-card-meta span {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.product-card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.product-card-link:hover {
    color: var(--color-primary-dark);
}

.product-card-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.product-card-link:hover svg {
    transform: translateX(4px);
}

/* ==========================================================================
   Product Categories
   ========================================================================== */
.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
    justify-content: center;
}

.category-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-tab:hover,
.category-tab.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.category-card {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--color-white);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.category-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-card-icon svg,
.category-card-icon img {
    width: 40px;
    height: 40px;
    fill: currentColor;
}

.category-card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.category-card-count {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* ==========================================================================
   Features Section (POLINE Values)
   ========================================================================== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.value-card {
    position: relative;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

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

.value-card-letter {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

.value-card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-900);
}

.value-card-description {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   Stats Section
   ========================================================================== */
.stats-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    padding: var(--spacing-4xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    text-align: center;
}

.stat-item {
    color: var(--color-white);
}

.stat-number {
    font-family: var(--font-primary);
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-number span {
    color: var(--color-accent);
}

.stat-label {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.about-image::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 3px solid var(--color-primary);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.about-content h2 {
    margin-bottom: var(--spacing-lg);
}

.about-content p {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
}

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

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

.about-feature svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.about-feature span {
    font-weight: var(--font-weight-medium);
}

/* ==========================================================================
   Clients/Partners Section
   ========================================================================== */
.clients-section {
    background-color: var(--bg-light);
    padding: var(--spacing-3xl) 0;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
    align-items: center;
}

.client-logo {
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.client-logo:hover {
    box-shadow: var(--shadow-md);
}

.client-logo img {
    max-height: 60px;
    width: auto;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--transition-normal);
}

.client-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-section {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 100%);
    padding: var(--spacing-4xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.contact-info {
    color: var(--color-white);
}

.contact-info h2 {
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.contact-info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-2xl);
}

.contact-details {
    margin-bottom: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

.contact-item-content h4 {
    color: var(--color-white);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.contact-item-content p,
.contact-item-content a {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    margin: 0;
}

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

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

.social-link {
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

.social-link svg {
    width: 20px;
    height: 20px;
    color: var(--color-white);
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
}

.contact-form-wrapper h3 {
    margin-bottom: var(--spacing-xl);
}

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

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-xs);
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background-color: var(--bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--color-white);
}

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

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

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

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--bg-dark);
    color: var(--color-white);
}

.footer-main {
    padding: var(--spacing-4xl) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-3xl);
}

.footer-about .site-logo-text {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--color-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

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

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

.footer-contact-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

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

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

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

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

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

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

/* ==========================================================================
   Product Single Page
   ========================================================================== */
.product-single {
    padding-top: calc(var(--header-height) + var(--spacing-3xl));
    padding-bottom: var(--spacing-4xl);
}

.product-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
    font-size: var(--font-size-sm);
}

.product-breadcrumb a {
    color: var(--color-gray-600);
}

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

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

.product-single-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-4xl);
}

/* Product Gallery */
.product-gallery {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-xl));
}

.product-main-image {
    position: relative;
    aspect-ratio: 1;
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

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

.product-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.product-thumbnail {
    aspect-ratio: 1;
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.product-thumbnail:hover,
.product-thumbnail.active {
    border-color: var(--color-primary);
}

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

/* Product Info */
.product-info .product-code {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.product-info .product-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.product-short-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-200);
}

/* Quick Specs */
.quick-specs {
    margin-bottom: var(--spacing-xl);
}

.quick-specs-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
}

.quick-specs-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.quick-spec-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.quick-spec-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.quick-spec-item span {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
}

/* Application Tags */
.application-tags {
    margin-bottom: var(--spacing-xl);
}

.application-tags-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-sm);
}

.application-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-light);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--color-gray-700);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.application-tag svg {
    width: 14px;
    height: 14px;
    color: var(--color-primary);
}

/* Product Actions */
.product-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Product Tabs */
.product-tabs {
    margin-top: var(--spacing-4xl);
}

.tabs-nav {
    display: flex;
    border-bottom: 2px solid var(--color-gray-200);
    margin-bottom: var(--spacing-2xl);
    overflow-x: auto;
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-600);
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.tab-btn:hover {
    color: var(--color-primary);
}

.tab-btn.active {
    color: var(--color-primary);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Specs Table */
.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-xl);
}

.specs-table th,
.specs-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.specs-table th {
    background-color: var(--bg-light);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
    width: 40%;
}

.specs-table td {
    color: var(--color-gray-600);
}

.specs-table tr:hover td {
    background-color: var(--bg-light);
}

/* Material Table */
.material-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.material-table th,
.material-table td {
    padding: var(--spacing-md);
    text-align: left;
    border: 1px solid var(--color-gray-200);
}

.material-table th {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
}

.material-table tr:nth-child(even) td {
    background-color: var(--bg-light);
}

.material-table tr:hover td {
    background-color: var(--color-gray-200);
}

/* ==========================================================================
   Page Templates
   ========================================================================== */
.page-header {
    padding: calc(var(--header-height) + var(--spacing-4xl)) 0 var(--spacing-4xl);
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    text-align: center;
    color: var(--color-white);
}

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

.page-header .breadcrumb {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.page-header .breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
}

.page-header .breadcrumb a:hover {
    color: var(--color-white);
}

.page-header .breadcrumb span {
    color: rgba(255, 255, 255, 0.6);
}

.page-content {
    padding: var(--spacing-4xl) 0;
}

/* ==========================================================================
   Archive / Product Listing
   ========================================================================== */
.archive-header {
    margin-bottom: var(--spacing-3xl);
}

.archive-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.filter-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background-color: var(--color-white);
}

.product-search {
    flex: 2;
    min-width: 300px;
}

.search-input-wrapper {
    position: relative;
}

.search-input-wrapper input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 44px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.search-input-wrapper svg {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-gray-400);
}

.archive-count {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
}

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

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--spacing-sm);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

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

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

/* ==========================================================================
   Owl Carousel Overrides
   ========================================================================== */
.owl-carousel .owl-nav button.owl-prev,
.owl-carousel .owl-nav button.owl-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: var(--color-white) !important;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    color: var(--color-gray-800);
    font-size: 24px !important;
    transition: all var(--transition-fast);
}

.owl-carousel .owl-nav button.owl-prev {
    left: -25px;
}

.owl-carousel .owl-nav button.owl-next {
    right: -25px;
}

.owl-carousel .owl-nav button:hover {
    background-color: var(--color-primary) !important;
    color: var(--color-white);
}

.owl-carousel .owl-dots {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.owl-carousel .owl-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin: 0 var(--spacing-xs);
    background-color: var(--color-gray-300);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.owl-carousel .owl-dot.active {
    background-color: var(--color-primary);
    width: 30px;
}

/* ==========================================================================
   Animations
   ========================================================================== */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-in"] {
    opacity: 0;
}

[data-aos="fade-in"].aos-animate {
    opacity: 1;
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 992px) {
    :root {
        --header-height: 70px;
    }

    .main-navigation {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
    }

    .main-navigation.active {
        display: block;
    }

    .nav-menu {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .nav-menu > li > a {
        padding: var(--spacing-md) 0;
        border-bottom: 1px solid var(--color-gray-200);
    }

    .nav-menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--spacing-lg);
        display: none;
    }

    .nav-menu .sub-menu.active {
        display: block;
    }

    .header-cta {
        margin: var(--spacing-lg) 0 0;
    }

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

    .about-grid,
    .contact-grid,
    .product-single-grid {
        grid-template-columns: 1fr;
    }

    .about-image::before {
        display: none;
    }

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

@media (max-width: 768px) {
    h1 { font-size: var(--font-size-3xl); }
    h2 { font-size: var(--font-size-2xl); }
    h3 { font-size: var(--font-size-xl); }

    .section {
        padding: var(--spacing-3xl) 0;
    }

    .hero {
        min-height: auto;
        padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    }

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

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

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

    .stat-number {
        font-size: var(--font-size-4xl);
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }

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

    .tabs-nav {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 576px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

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

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

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

    .product-actions .btn {
        width: 100%;
    }
}

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

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-white { color: var(--color-white); }
.text-muted { color: var(--color-gray-600); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--bg-dark); }

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

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

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.py-5 { padding-top: var(--spacing-2xl); padding-bottom: var(--spacing-2xl); }

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

.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}