/* ========================================
   PCT WATER REPELLENT - PROFESSIONAL CSS
   Mobile-First Responsive Design
   ======================================== */

/* ========== CUSTOM PROPERTIES ========== */
:root {
    /* Colors - Professional Blues/Teals/Grays */
    --primary: #0066cc;
    --primary-dark: #0052a3;
    --primary-light: #1a2a3a;
    --secondary: #00a3cc;
    --secondary-dark: #008099;
    --accent: #00d4aa;
    --accent-red: #d32f2f;
    --accent-red-light: #ffebee;
    --neutral-dark: #f0f0f0;
    --neutral-light: #111111;
    --neutral-gray: #a0a0a0;
    --border: #2a2a2a;
    --success: #10b981;
    --error: #ef4444;
    --white: #0a0a0a;
    --shadow: rgba(255, 255, 255, 0.05);
    --shadow-lg: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 22px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    --font-size-4xl: 64px;
    --line-height: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--neutral-dark);
    background-color: #0a0a0a;
    overflow-x: hidden;
}

/* Accessibility - Skip to content */
.skip-link {
    display: none;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: #f0f0f0;
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

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

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

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

/* ========== CONTAINER & LAYOUT ========== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

main {
    overflow: hidden;
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
    color: var(--neutral-dark);
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent-red);
    border-radius: 2px;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--secondary);
    font-weight: 500;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

/* Button Variants */
.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(211, 47, 47, 0.2);
}

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

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

/* Button Sizes */
.btn-lg {
    padding: 1rem 2.5rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
}

/* ========== HEADER & NAVIGATION ========== */
.header {
    position: sticky;
    top: 0;
    background-color: var(--white);
    box-shadow: 0 2px 8px var(--shadow);
    z-index: 50;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--primary);
}

.logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
}

.nav-list {
    display: none;
    list-style: none;
    flex-direction: column;
    gap: var(--spacing-md);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    padding: var(--spacing-md);
    box-shadow: 0 4px 12px var(--shadow);
}

.nav-list.active {
    display: flex;
}

.nav-link {
    color: var(--neutral-dark);
    font-weight: 500;
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--neutral-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* ========== HERO SECTION ========== */
.hero {
    background: linear-gradient(105deg, rgba(0, 20, 60, 0.82) 0%, rgba(0, 50, 100, 0.55) 60%, rgba(0, 163, 204, 0.25) 100%), url('../images/hero.jpg') center/cover no-repeat;
    color: var(--white);
    min-height: 100vh;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    position: relative;
    overflow: hidden;
}

.hero-watermark {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    height: 80%;
    width: auto;
    object-fit: contain;
    opacity: 0.06;
    pointer-events: none;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,50 Q300,0 600,50 T1200,50 L1200,120 L0,120 Z" fill="rgba(255,255,255,0.03)"/></svg>');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.hero-content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.hero-text {
    text-align: center;
    max-width: 700px;
}

.hero,
.hero *:not(.btn) {
    color: #ffffff;
}

.hero-eyebrow {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--accent-red);
    padding-bottom: 6px;
}

.hero-text h1 {
    font-size: clamp(49px, 9vw, 120px);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -0.02em;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
}

.hero-tagline {
    font-size: clamp(18px, 2vw, 24px);
    font-weight: 400;
    font-style: italic;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
    padding-left: 2px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    position: relative;
    z-index: 2;
    padding: 0;
}

.hero-stat {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.hero-stat-number {
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 900;
    color: var(--white);
    line-height: 1;
    letter-spacing: -0.02em;
}

.hero-stat-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    flex-shrink: 0;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.95);
}

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

.about-content {
    margin-bottom: var(--spacing-3xl);
}

.about-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.about-card {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
    border-top: 2px solid var(--accent-red);
    box-shadow: 0 4px 12px var(--shadow);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px var(--shadow-lg);
}

.about-card-icon {
    font-size: 36px;
    color: var(--accent-red);
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.about-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--neutral-dark);
}

.about-card p {
    font-size: var(--font-size-base);
    margin-bottom: 0;
    color: var(--neutral-gray);
}

@media (min-width: 768px) {
    .about-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

@media (min-width: 768px) {
    .about-story {
        grid-template-columns: repeat(3, 1fr);
    }
}

.story-block {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
    border-top: 2px solid var(--accent-red);
    box-shadow: 0 4px 12px var(--shadow);
}

.story-block h3 {
    font-size: var(--font-size-xl);
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.story-block p {
    font-size: var(--font-size-base);
    color: var(--neutral-gray);
    line-height: 1.7;
    margin-bottom: 0;
}

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

.stat {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--primary-light);
    border-radius: var(--radius-lg);
    border-bottom: 3px solid var(--accent-red);
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--neutral-gray);
    font-weight: 500;
}

/* ========== PRODUCTS SECTION ========== */
.products {
    background-color: var(--neutral-light);
}

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

.product-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px var(--shadow-lg);
    border-top: 3px solid var(--accent-red);
}

.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--primary-light);
}

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

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

.product-tagline {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
    margin-top: calc(var(--spacing-xs) * -0.5);
}

.product-features {
    list-style: none;
    padding: 0 var(--spacing-lg);
    margin: var(--spacing-sm) 0 var(--spacing-md);
    text-align: left;
    flex-grow: 1;
}

.product-features li {
    font-size: var(--font-size-sm);
    color: var(--neutral-gray);
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-features li i {
    color: var(--accent);
    font-size: 0.75rem;
    flex-shrink: 0;
}

.product-card h3 {
    font-size: var(--font-size-xl);
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    color: var(--neutral-dark);
}

.product-icon {
    font-size: 32px;
    color: var(--accent-red);
    margin: var(--spacing-md) var(--spacing-lg) var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.product-card p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--neutral-gray);
}

.product-card .btn {
    margin: 0 var(--spacing-lg) var(--spacing-lg);
}

/* ========== FEATURES SECTION ========== */
.features {
    background: linear-gradient(135deg, rgba(230, 240, 255, 0.95) 0%, rgba(0, 163, 204, 0.1) 100%), url('../images/para.jpg') center/cover fixed no-repeat;
    background-attachment: fixed;
    position: relative;
}

.features h2,
.features h3,
.features h4 {
    color: #111111;
}

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

.feature-item {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
    position: relative;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background-color: var(--accent-red);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    opacity: 0;
    transition: var(--transition);
}

.feature-item:hover::before {
    opacity: 1;
}

.feature-item:hover {
    box-shadow: 0 4px 12px var(--shadow);
    transform: translateX(8px);
}

.feature-icon {
    color: var(--accent-red);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: rgba(211, 47, 47, 0.08);
    border-radius: var(--radius-md);
    font-size: 24px;
}

.feature-item h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-dark);
}

.feature-item p {
    font-size: var(--font-size-sm);
    color: var(--neutral-gray);
    margin: 0;
}

/* ========== CONTACT SECTION ========== */
.contact {
    background-color: var(--white);
}

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

.contact-form-wrapper {
    background-color: var(--neutral-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-dark);
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background-color: var(--white);
    color: var(--neutral-dark);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(102, 102, 102, 0.6);
}

.form-input-wrapper {
    display: flex;
    align-items: center;
    position: relative;
    background-color: var(--white);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    padding-left: var(--spacing-md);
}

.form-input-wrapper i {
    color: var(--accent-red);
    margin-right: var(--spacing-sm);
    font-size: 18px;
    flex-shrink: 0;
}

.form-input-wrapper input,
.form-input-wrapper textarea {
    flex: 1;
    border: none;
    padding: var(--spacing-md);
    background: transparent;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--neutral-dark);
}

.form-input-wrapper input::placeholder,
.form-input-wrapper textarea::placeholder {
    color: rgba(102, 102, 102, 0.6);
}

.form-input-wrapper input:focus,
.form-input-wrapper textarea:focus {
    outline: none;
}

.form-input-wrapper:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-note {
    font-size: var(--font-size-sm);
    color: var(--neutral-gray);
    margin: 0;
}

.contact-info {
    background-color: var(--neutral-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.contact-info h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--neutral-dark);
}

.info-item {
    margin-bottom: var(--spacing-lg);
}

.info-label {
    display: block;
    font-weight: 600;
    color: var(--neutral-dark);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.info-item a {
    font-size: var(--font-size-base);
}

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

.social-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--primary);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition);
    text-align: center;
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.social-link:hover {
    background-color: var(--primary-dark);
    text-decoration: none;
}

.social-link i {
    font-size: 16px;
}

/* Protected Email/Phone Reveal */
.protected-email,
.protected-phone {
    display: block;
    margin: var(--spacing-sm) 0;
}

.reveal-btn {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

.reveal-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.reveal-btn:active {
    transform: translateY(0);
}

.reveal-btn:disabled {
    opacity: 0.8;
    cursor: default;
}

/* ========== FOOTER ========== */
.footer {
    background-color: #1a2332;
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    color: var(--accent-red);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--secondary);
    text-decoration: none;
}

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

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(211, 47, 47, 0.15);
    color: var(--accent-red);
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-size: 18px;
}

.social-icons a:hover {
    background-color: var(--accent-red);
    color: var(--white);
    text-decoration: none;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

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

.footer-links a {
    color: var(--accent-red);
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #ff6b6b;
    text-decoration: underline;
}

/* ========== TABLET RESPONSIVE (768px+) ========== */
@media (min-width: 768px) {
    h1 {
        font-size: var(--font-size-4xl);
    }

    h2 {
        font-size: var(--font-size-3xl);
    }

    section {
        padding: var(--spacing-2xl) 0;
    }

    /* Header */
    .mobile-menu-btn {
        display: none;
    }

    .nav-list {
        display: flex !important;
        position: static;
        flex-direction: row;
        gap: var(--spacing-xl);
        box-shadow: none;
        padding: 0;
        background: transparent;
    }

    /* Hero */
    .hero-content {
        grid-template-columns: 1fr;
    }

    /* Products */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    /* Contact */
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-bottom {
        grid-template-columns: 1fr auto;
        text-align: left;
    }
}

/* ========== DESKTOP RESPONSIVE (1024px+) ========== */
@media (min-width: 1024px) {
    .section-header {
        margin-bottom: var(--spacing-2xl);
    }

    /* Products */
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Features */
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* About Stats */
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========== UTILITIES ========== */
.text-center {
    text-align: center;
}

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

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

.hidden {
    display: none !important;
}

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

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* ========== LIGHTBOX ========== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: auto;
}

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

.lightbox-close {
    position: absolute;
    top: 10px;
    right: 15px;
    background-color: var(--accent-red);
    color: var(--white);
    border: none;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: var(--transition);
    z-index: 1001;
}

.lightbox-close:hover {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

/* ========== THANK YOU MODAL ========== */
.thank-you-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.thank-you-modal.active {
    display: flex;
}

.thank-you-content {
    position: relative;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    padding: 60px 40px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.thank-you-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--accent-red);
    color: var(--white);
    border: none;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.thank-you-close:hover {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 30px;
    background-color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--white);
    font-weight: bold;
}

.thank-you-content h2 {
    font-size: var(--font-size-3xl);
    color: var(--neutral-dark);
    margin-bottom: var(--spacing-md);
}

.thank-you-content > p {
    font-size: var(--font-size-base);
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-md);
}

.thank-you-message {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background-color: var(--neutral-light);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--success);
}

.thank-you-message p {
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-gray);
}

.thank-you-message p:last-child {
    margin-bottom: 0;
}

.thank-you-contact-info {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
    font-size: var(--font-size-sm);
    color: var(--neutral-gray);
}

@media (max-width: 600px) {
    .thank-you-content {
        padding: 40px 20px;
    }

    .thank-you-content h2 {
        font-size: var(--font-size-2xl);
    }

    .success-icon {
        width: 60px;
        height: 60px;
        font-size: 36px;
    }
}

/* ========== MOBILE RESPONSIVE (max-width: 767px) ========== */
@media (max-width: 767px) {

    /* --- Global --- */
    body {
        overflow-x: hidden;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    h1 {
        font-size: clamp(1.6rem, 6vw, 2.4rem);
        word-break: break-word;
    }

    h2 {
        font-size: clamp(1.3rem, 5vw, 2rem);
    }

    /* --- Hero --- */
    .hero {
        min-height: 100svh;
    }

    .hero-text {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: clamp(49px, 9vw, 120px);
        word-break: break-word;
        hyphens: auto;
    }

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

    .hero-stats {
        flex-wrap: nowrap;
        gap: 0;
        padding: 0;
        width: 100%;
        overflow: hidden;
    }

    .hero-stat-divider {
        display: block;
        width: 1px;
        height: 30px;
    }

    .hero-stat {
        flex: 1 1 0;
        min-width: 0;
        padding: var(--spacing-sm) var(--spacing-xs);
    }

    .hero-stat-number {
        font-size: clamp(14px, 4.5vw, 22px);
        white-space: nowrap;
    }

    .hero-stat-label {
        font-size: clamp(8px, 2.2vw, 11px);
        white-space: nowrap;
    }

    /* --- Products --- */
    .products-grid {
        grid-template-columns: 1fr !important;
    }

    .product-card {
        width: 100%;
    }

    /* --- About --- */
    .about-story {
        grid-template-columns: 1fr !important;
    }

    /* --- Features --- */
    .features-grid {
        grid-template-columns: 1fr !important;
    }

    /* --- Contact --- */
    .contact-content {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl);
    }

    .contact-form-wrapper,
    .contact-info {
        width: 100%;
    }

    /* --- Footer --- */
    .footer-content {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .footer-bottom {
        grid-template-columns: 1fr !important;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .social-icons {
        justify-content: center;
    }
}

/* ========== PRINT STYLES ========== */
@media print {
    .header,
    .footer,
    .mobile-menu-btn,
    .btn {
        display: none;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }
}

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