/*
Theme Name: QUITECOOL B2B Refrigeration
Theme URI: https://quitecool.com
Author: QUITECOOL Development Team
Author URI: https://quitecool.com
Description: A professional B2B WordPress theme for refrigeration equipment manufacturers. Features inquiry-focused design, WooCommerce integration, multi-language support, and modern UI/UX optimized for international trade.
Version: 1.1.7
Requires at least: 6.0
Tested up to: 6.9.4
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: refrigeration-b2b
Tags: e-commerce, business, custom-menu, featured-images, theme-options, translation-ready

QUITECOOL - Innovating the Cold, Empowering Your Business.
*/

/* ============================================
   DESIGN SYSTEM - QUITECOOL Brand Colors
   ============================================ */

:root {
    /* Primary Colors */
    --ice-blue: #00A8E8;
    --navy-blue: #001A33;
    --navy-blue-light: #00284d;
    
    /* Secondary Colors */
    --pure-white: #FFFFFF;
    --silver: #F4F7F6;
    --silver-dark: #E8ECEF;
    
    /* Accent Color */
    --bright-orange: #FF6B00;
    --bright-orange-hover: #e55f00;
    
    /* Neutral Colors */
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --text-light: #999999;
    --border-color: #e0e0e0;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 26, 51, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 26, 51, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 26, 51, 0.16);
    --shadow-hover: 0 12px 32px rgba(0, 26, 51, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--pure-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--bright-orange);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--navy-blue);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

ul, ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.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); }

.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); }

.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-xxl); padding-bottom: var(--spacing-xxl); }

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

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

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

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

.btn-secondary:hover {
    background-color: var(--pure-white);
    color: var(--navy-blue);
}

.btn-accent {
    background-color: var(--bright-orange);
    color: var(--pure-white);
    border-color: var(--bright-orange);
}

.btn-accent:hover {
    background-color: var(--bright-orange-hover);
    border-color: var(--bright-orange-hover);
    color: var(--pure-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background-color: var(--ice-blue);
    color: var(--pure-white);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
    background-color: var(--pure-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

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

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

.site-logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy-blue);
    letter-spacing: 1px;
}

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

/* Navigation */
.main-navigation {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    margin: 0;
    padding: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: 0.5rem 0;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--navy-blue);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a:hover,
.nav-menu .current-menu-item a {
    color: var(--ice-blue);
}

/* Current menu item indicator */
.nav-menu .current-menu-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--ice-blue), var(--navy-blue));
    border-radius: 2px;
}

.nav-menu .current-menu-parent > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--ice-blue), var(--navy-blue));
    border-radius: 2px;
}

/* Submenu */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: var(--pure-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-normal);
}

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

.nav-menu .sub-menu li {
    margin: 0;
}

.nav-menu .sub-menu a {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
}

.nav-menu .sub-menu a:hover {
    background-color: var(--silver);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-search {
    position: relative;
}

.header-search button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--navy-blue);
    transition: color var(--transition-fast);
}

.header-search button:hover {
    color: var(--ice-blue);
}

.language-switcher {
    position: relative;
}

.language-switcher button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--navy-blue);
    transition: all var(--transition-fast);
}

.language-switcher button:hover {
    border-color: var(--ice-blue);
    color: var(--ice-blue);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 120px;
    background-color: var(--pure-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
}

.language-switcher:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown a {
    display: block;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    color: var(--navy-blue);
}

.lang-dropdown a:hover {
    background-color: var(--silver);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--navy-blue);
    margin: 5px 0;
    transition: all var(--transition-fast);
    border-radius: 2px;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
    background-color: var(--navy-blue);
    color: var(--pure-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    height: 45px;
    width: auto;
    margin-bottom: var(--spacing-sm);
}

.footer-about p {
    color: var(--silver-dark);
    font-size: 0.95rem;
    line-height: 1.8;
}

.footer-heading {
    font-size: 1.1rem;
    color: var(--pure-white);
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--ice-blue);
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--silver-dark);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--ice-blue);
    padding-left: 5px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--silver-dark);
    font-size: 0.95rem;
}

.footer-contact .icon {
    color: var(--ice-blue);
    font-size: 1.2rem;
    margin-top: 2px;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--pure-white);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background-color: var(--ice-blue);
    transform: translateY(-3px);
}

/* Certification Wall */
.footer-certifications {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.cert-heading {
    font-size: 0.9rem;
    color: var(--silver-dark);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cert-logos {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
}

.cert-logos img {
    height: 35px;
    width: auto;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.cert-logos img:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.copyright {
    color: var(--silver-dark);
    font-size: 0.9rem;
}

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

.footer-bottom-links a {
    color: var(--silver-dark);
    font-size: 0.9rem;
}

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 26, 51, 0.85) 0%, rgba(0, 168, 232, 0.6) 100%),
                url('assets/images/hero-bg.jpg') center/cover no-repeat;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--pure-white), transparent);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    color: var(--pure-white);
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--pure-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-content h2 {
    font-size: 1.5rem;
    color: var(--silver);
    font-weight: 400;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

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

/* Snowflake Animation Effect */
.snowflake {
    position: absolute;
    top: -10px;
    color: rgba(255, 255, 255, 0.3);
    font-size: 1rem;
    animation: fall linear infinite;
}

@keyframes fall {
    to {
        transform: translateY(700px) rotate(360deg);
    }
}

/* ============================================
   SECTIONS
   ============================================ */

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

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--ice-blue), var(--navy-blue));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-top: var(--spacing-md);
}

/* ============================================
   FEATURES / WHY CHOOSE US
   ============================================ */

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

.feature-card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--pure-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--ice-blue), var(--navy-blue));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--pure-white);
}

.feature-card h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin: 0;
}

/* ============================================
   PRODUCT CARDS
   ============================================ */

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

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

.product-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

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

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

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 26, 51, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-overlay-buttons {
    display: flex;
    gap: var(--spacing-sm);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.product-card:hover .product-overlay-buttons {
    transform: translateY(0);
}

.product-info {
    padding: var(--spacing-md);
}

.product-category {
    font-size: 0.8rem;
    color: var(--ice-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.product-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.product-model {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-bottom: 0.75rem;
}

.product-specs {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
    background-color: var(--silver);
}

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

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

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

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background-color: var(--bright-orange);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pure-white);
    font-size: 2rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.video-play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background-color: var(--bright-orange-hover);
}

.about-content h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.about-content p {
    color: var(--text-gray);
    font-size: 1.05rem;
    line-height: 1.8;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--pure-white);
    border-radius: var(--radius-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--ice-blue);
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-top: 0.5rem;
}

/* ============================================
   INQUIRY FORM SECTION
   ============================================ */

.inquiry-section {
    background: linear-gradient(135deg, var(--navy-blue) 0%, var(--ice-blue) 100%);
    color: var(--pure-white);
}

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

.inquiry-section .section-subtitle {
    color: var(--silver);
}

.inquiry-form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--pure-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

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

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--navy-blue);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--ice-blue);
    box-shadow: 0 0 0 3px rgba(0, 168, 232, 0.1);
}

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

.form-submit {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ============================================
   PAGE HEADER / BANNER
   ============================================ */

.page-header {
    background: linear-gradient(135deg, var(--navy-blue) 0%, var(--ice-blue) 100%);
    padding: var(--spacing-xxl) 0;
    text-align: center;
    color: var(--pure-white);
}

.page-header h1 {
    color: var(--pure-white);
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1.2rem;
    color: var(--silver);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   SIDEBAR LAYOUT
   ============================================ */

.content-with-sidebar {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
}

.sidebar {
    background-color: var(--pure-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar-heading {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--ice-blue);
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-dark);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.sidebar-menu a:hover,
.sidebar-menu .current a {
    background-color: var(--ice-blue);
    color: var(--pure-white);
}

.sidebar-filters {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.filter-group {
    margin-bottom: var(--spacing-md);
}

.filter-group h5 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.filter-options {
    list-style: none;
    padding: 0;
    margin: 0;
}

.filter-options li {
    margin-bottom: 0.5rem;
}

.filter-options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-gray);
}

.filter-options input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--ice-blue);
}

/* ============================================
   PRODUCT DETAIL PAGE
   ============================================ */

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

.product-gallery {
    position: sticky;
    top: 100px;
}

.main-image {
    background-color: var(--silver);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

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

.thumbnail-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.thumbnail {
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
}

.thumbnail:hover,
.thumbnail.active {
    border-color: var(--ice-blue);
}

.product-detail-info h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.product-model-large {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-lg);
}

.product-highlights {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-lg);
}

.product-highlights li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-gray);
}

.product-highlights li::before {
    content: '✓';
    color: var(--ice-blue);
    font-weight: 700;
    font-size: 1.2rem;
}

.product-detail-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

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

.tab-buttons {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.tab-button {
    padding: 1rem 2rem;
    background: none;
    border: none;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-gray);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
}

.tab-button:hover,
.tab-button.active {
    color: var(--ice-blue);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--ice-blue);
}

.tab-content {
    display: none;
}

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

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid var(--border-color);
}

.specs-table td {
    padding: 1rem;
}

.specs-table td:first-child {
    font-weight: 600;
    color: var(--navy-blue);
    width: 40%;
}

.specs-table td:last-child {
    color: var(--text-gray);
}

/* ============================================
   NEWS / BLOG
   ============================================ */

.news-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.news-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-lg);
    background-color: var(--pure-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.news-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-hover);
}

.news-image {
    overflow: hidden;
}

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

.news-card:hover .news-image img {
    transform: scale(1.1);
}

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

.news-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-light);
}

.news-category {
    color: var(--ice-blue);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.news-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.news-excerpt {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--ice-blue);
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.read-more:hover {
    gap: 0.75rem;
}

/* ============================================
   MODAL / POPUP
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 26, 51, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background-color: var(--pure-white);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9) translateY(-20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-gray);
    padding: 0.5rem;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--navy-blue);
}

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

.modal-product-info {
    background-color: var(--silver);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.modal-product-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.modal-product-info p {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .main-navigation {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .content-with-sidebar {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
    }
    
    .news-card {
        grid-template-columns: 1fr;
    }
    
    .product-detail {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-actions .btn-accent {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .product-detail-actions {
        flex-direction: column;
    }
    
    .product-detail-actions .btn {
        width: 100%;
    }
    
    .tab-buttons {
        flex-wrap: wrap;
    }
    
    .tab-button {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
}

/* ============================================
   LOADING STATES & ANIMATIONS
   ============================================ */

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

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--silver);
    border-top-color: var(--ice-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Form Success Message */
.form-success {
    background-color: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    text-align: center;
}

/* Form Error Message */
.form-error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    text-align: center;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--navy-blue);
    color: var(--pure-white);
    padding: 0.5rem 1rem;
    z-index: 10000;
    transition: top var(--transition-fast);
}

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

/* Focus styles */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--ice-blue);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}