/* ========================================
   Coway BayRaa MGL-USA - Main Stylesheet
   Theme: Clean Water, Trust, Professional
   ======================================== */

/* CSS Variables */
:root {
    /* Coway Brand Colors */
    --primary-blue: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #3399FF;
    --water-blue: #00A3E0;
    --trust-green: #00CC66;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #F8FAFB;
    --light-gray: #E5EBF0;
    --gray: #8B9AA8;
    --dark-gray: #4A5568;
    --black: #1A202C;
    
    /* Accent Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mongolian: 'Noto Sans Mongolian', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Borders */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--black);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Section Styles */
.section {
    padding: var(--space-3xl) 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--black);
    margin-bottom: var(--space-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(90deg, var(--primary-blue), var(--water-blue));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray);
    margin-top: var(--space-md);
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.navbar {
    padding: var(--space-sm) 0;
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1.2;
}

.logo .brand-highlight {
    color: var(--water-blue);
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--gray);
    font-weight: 600;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--dark-gray);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-link:hover::after {
    transform: scaleX(1);
}

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

/* Language Switcher */
.language-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--dark-gray);
}

.lang-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-xs);
    min-width: 150px;
    display: none;
    z-index: 100;
}

.lang-dropdown.active {
    display: block;
}

.lang-option {
    display: block;
    width: 100%;
    text-align: left;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.lang-option:hover {
    background: var(--off-white);
    color: var(--primary-blue);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--dark-gray);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

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

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0066CC 0%, #00A3E0 50%, #3399FF 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: -1;
}

.hero-content {
    color: var(--white);
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--space-xl);
    opacity: 0.95;
}

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

.btn-hero-primary {
    background: var(--white);
    color: var(--primary-blue);
    padding: 1rem 2rem;
    font-size: 1.125rem;
    box-shadow: var(--shadow-xl);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 25px 35px -5px rgba(0, 0, 0, 0.2);
}

.btn-hero-secondary {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

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

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

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    font-weight: 500;
}

/* ========================================
   PROMOTIONS BANNER
   ======================================== */

.promotions-section {
    padding: var(--space-xl) 0;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
}

.promotion-banner {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.promotion-banner::before {
    content: '🎉';
    position: absolute;
    font-size: 8rem;
    opacity: 0.1;
    right: -2rem;
    top: -2rem;
}

.promotion-icon {
    font-size: 4rem;
    flex-shrink: 0;
}

.promotion-content {
    flex: 1;
}

.promotion-badge {
    display: inline-block;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 0.875rem;
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

.promotion-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--black);
    margin-bottom: var(--space-sm);
}

.promotion-description {
    font-size: 1.125rem;
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.promotion-discount {
    display: inline-block;
    background: var(--trust-green);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1.25rem;
}

.promotion-cta {
    margin-top: var(--space-md);
}

/* Promotion with Image Styles */
.promotion-image-wrapper {
    position: relative;
    width: 100%;
    min-height: 400px;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.promotion-banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.promotion-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.promotion-overlay .promotion-content {
    text-align: center;
    max-width: 800px;
}

.promotion-overlay .promotion-badge,
.promotion-overlay .promotion-title,
.promotion-overlay .promotion-description,
.promotion-overlay .promotion-discount {
    color: var(--white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.promotion-overlay .promotion-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.promotion-overlay .promotion-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
}

.btn-promo {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    box-shadow: 0 4px 16px rgba(0, 102, 204, 0.4);
}

/* ========================================
   PRODUCTS SECTION
   ======================================== */

.products-section {
    background: var(--off-white);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.category-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 3px solid transparent;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.category-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-sm);
}

.category-desc {
    color: var(--gray);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.category-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--primary-blue);
    font-weight: 600;
    transition: var(--transition);
}

.category-card:hover .category-btn {
    gap: var(--space-md);
}

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

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

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

.product-image {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, var(--primary-light), var(--water-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.product-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: var(--trust-green);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

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

.product-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
    padding: 0.25rem 0.75rem;
    background: rgba(0, 102, 204, 0.1);
    border-radius: var(--radius-sm);
}

.product-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-xs);
}

.product-subtitle {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--space-sm);
}

.product-features-title {
    font-weight: 600;
    color: var(--black);
    margin-bottom: var(--space-sm);
    margin-top: var(--space-md);
}

.product-description {
    color: var(--gray);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.product-features {
    list-style: none;
    margin-bottom: var(--space-md);
}

.product-features li {
    padding: var(--space-xs) 0;
    color: var(--dark-gray);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.product-features li i {
    color: var(--trust-green);
}

.product-pricing {
    border-top: 2px solid var(--light-gray);
    padding-top: var(--space-md);
    margin-bottom: var(--space-md);
}

.pricing-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.pricing-label {
    font-weight: 600;
    color: var(--dark-gray);
}

.pricing-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-blue);
}

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

.product-cta .btn {
    flex: 1;
}

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

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

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

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

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

.about-badge {
    position: absolute;
    bottom: var(--space-lg);
    right: var(--space-lg);
    background: linear-gradient(135deg, var(--primary-blue), var(--water-blue));
    color: var(--white);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.about-badge i {
    font-size: 1.5rem;
}

.about-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--black);
    margin-bottom: var(--space-md);
}

.about-highlight {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--space-md);
}

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

.about-description p {
    color: var(--dark-gray);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.about-achievements {
    display: grid;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--off-white);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-blue);
}

.achievement-item i {
    font-size: 2rem;
    color: var(--primary-blue);
}

.achievement-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.achievement-item p {
    font-size: 0.875rem;
    color: var(--gray);
}

/* ========================================
   TESTIMONIALS SECTION
   ======================================== */

.testimonials-section {
    background: var(--off-white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.testimonial-card {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.testimonial-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-light);
}

.testimonial-info h4 {
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.testimonial-info p {
    font-size: 0.875rem;
    color: var(--gray);
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: var(--space-md);
}

.testimonial-rating i {
    color: var(--warning);
}

.testimonial-text {
    color: var(--dark-gray);
    line-height: 1.7;
    font-style: italic;
}

.testimonials-loading {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--gray);
}

.testimonials-loading i {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    color: var(--primary-blue);
}

/* ========================================
   CONTACT SECTION
   ======================================== */

.contact-section {
    background: var(--white);
}

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

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

.contact-card {
    text-align: center;
    padding: var(--space-xl);
    background: var(--off-white);
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.contact-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, var(--primary-blue), var(--water-blue));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-sm);
}

.contact-card p {
    font-size: 1.125rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.contact-card small {
    color: var(--gray);
    font-size: 0.875rem;
}

.contact-form-wrapper {
    position: relative;
}

.contact-form {
    background: var(--off-white);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem var(--space-md);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.form-success {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    border-radius: var(--radius-xl);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-xl);
}

.form-success.active {
    display: flex;
}

.form-success i {
    font-size: 4rem;
    color: var(--success);
    margin-bottom: var(--space-md);
}

.form-success h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--space-sm);
}

.form-success p {
    color: var(--gray);
}

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

.footer {
    background: linear-gradient(135deg, var(--black), var(--dark-gray));
    color: var(--white);
    padding: var(--space-3xl) 0 var(--space-lg);
}

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

.footer-brand h3 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--space-sm);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

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

.footer-column h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--water-blue);
}

.footer-column a,
.footer-column p {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-sm);
    transition: var(--transition);
}

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

.footer-column i {
    margin-right: var(--space-xs);
    color: var(--water-blue);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-admin {
    margin-top: var(--space-sm);
}

.footer-admin a {
    color: var(--water-blue);
    font-weight: 600;
}

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

/* ========================================
   SCROLL TO TOP BUTTON
   ======================================== */

.scroll-top-btn {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--water-blue));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

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

@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--space-lg);
        box-shadow: var(--shadow-lg);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        gap: var(--space-md);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .products-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --space-3xl: 3rem;
        --space-2xl: 2rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .btn-hero-primary,
    .btn-hero-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .product-cta {
        flex-direction: column;
    }
}