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

:root {
    --primary: #0f4c81;
    --primary-accent: #2563eb;
    --primary-light: #eff6ff;
    --primary-50: #f0f7ff;
    --whatsapp: #25D366;
    --white: #ffffff;
    --bg: #fafafa;
    --bg-warm: #f5f3f0;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 600;
    line-height: 1.2;
}

.material-symbols-rounded {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

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

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: box-shadow var(--transition);
}

header.scrolled {
    box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

nav {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 68px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.15rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    white-space: nowrap;
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    object-fit: contain;
    flex-shrink: 0;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.nav-links li a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-links li a:hover {
    color: var(--text-primary);
    background: var(--border-light);
}

.nav-links li a.active {
    color: var(--primary-accent);
    background: var(--primary-light);
}

.header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.15rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.8125rem;
    font-family: 'DM Sans', sans-serif;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: #0a3d6b;
    box-shadow: 0 4px 12px rgba(15, 76, 129, 0.3);
}

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

.btn-whatsapp:hover {
    background: #1da851;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--text-primary);
    background: var(--border-light);
}

.btn .material-symbols-rounded {
    font-size: 1.1rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.4rem;
    border-radius: var(--radius-sm);
}

.mobile-menu-btn .material-symbols-rounded {
    font-size: 1.5rem;
}

/* ===== HERO CAROUSEL ===== */
.hero-carousel {
    margin-top: 68px;
    position: relative;
    overflow: hidden;
    background: var(--bg);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
    display: flex;
    align-items: center;
}

.slide-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 2rem;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.slide-text h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.08;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.slide-text .subtitle {
    font-size: 1rem;
    color: var(--primary-accent);
    font-weight: 600;
    margin-bottom: 0.75rem;
    font-family: 'DM Sans', sans-serif;
}

.slide-text .description {
    font-size: 0.975rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
    max-width: 480px;
}

.slide-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.slide-image {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    cursor: pointer;
    transition: transform 0.4s ease;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 4/3;
    background: transparent;
    position: relative;
}

.slide-image::after {
    content: 'Browse Category →';
    position: absolute;
    bottom: 1.25rem;
    right: 1.25rem;
    background: var(--primary);
    color: var(--white);
    padding: 0.4rem 0.85rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    opacity: 0;
    transform: translateY(4px);
    transition: all 0.3s ease;
}

.slide-image:hover::after {
    opacity: 1;
    transform: translateY(0);
}

.slide-image:hover {
    box-shadow: var(--shadow-lg);
}

.slide-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Carousel Controls */
.carousel-controls {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.4;
}

.carousel-dot.active {
    background: var(--primary);
    width: 24px;
    border-radius: 4px;
    opacity: 1;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--white);
    border: 1px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    z-index: 10;
    color: var(--text-primary);
}

.carousel-nav:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.carousel-nav.prev { left: 1.5rem; }
.carousel-nav.next { right: 1.5rem; }

/* ===== SECTION UTILITIES ===== */
.section {
    padding: 5rem 2rem;
}

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 560px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

.section-header p {
    font-size: 0.975rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== CATEGORY GRID ===== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.category-image-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition);
    border: 1.5px solid transparent;
    position: relative;
    padding: 1.75rem 1.25rem 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.category-image-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border);
}

.category-img-wrapper {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.category-img-wrapper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.4s ease;
}

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

.category-info h3 {
    font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    color: var(--text-primary);
}

.category-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
    line-height: 1.4;
}

/* ===== PRODUCTS SECTION ===== */
.category-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.6rem 0.5rem;
    background: var(--white);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.75rem;
    min-width: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-secondary);
}

.tab-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    object-fit: contain;
    transition: all var(--transition);
}

.tab-btn:hover {
    border-color: var(--text-muted);
}

.tab-btn.active {
    border-color: var(--primary);
    color: var(--text-primary);
    background: var(--primary-50);
}

.products-showcase {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.showcase-image {
    background: var(--primary-50);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    min-height: 480px;
}

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

.products-scroll-container {
    position: relative;
    overflow: hidden;
    min-width: 0;
}

.products-scroll-container::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: calc(100% - 60px);
    background: linear-gradient(to right, transparent, var(--bg));
    pointer-events: none;
    z-index: 2;
}

.products-scroll {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding-bottom: 0.5rem;
    scrollbar-width: none;
}

.products-scroll::-webkit-scrollbar {
    display: none;
}

.product-grid {
    display: flex;
    gap: 1rem;
    min-width: max-content;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
    border: 1.5px solid var(--border);
    position: relative;
    width: 280px;
    flex-shrink: 0;
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--text-muted);
}

.product-image {
    height: 200px;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.4s ease;
}

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

.product-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: var(--primary);
    color: var(--white);
    padding: 0.25rem 0.65rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.scroll-controls {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    margin-top: 1.25rem;
    padding-right: 0.5rem;
}

.scroll-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--white);
    color: var(--text-primary);
    border: 1.5px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

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

/* ===== SERIES FILTER ===== */
.series-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 1rem 0 0.25rem;
}

.series-chip {
    padding: 0.45rem 0.9rem;
    background: var(--white);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.78rem;
    font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    color: var(--text-secondary);
    transition: all var(--transition);
    white-space: nowrap;
}

.series-chip:hover {
    border-color: var(--text-muted);
    color: var(--text-primary);
}

.series-chip.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.series-chip .chip-count {
    display: inline-block;
    background: rgba(0,0,0,0.08);
    color: inherit;
    padding: 0.1rem 0.4rem;
    border-radius: 10px;
    font-size: 0.7rem;
    margin-left: 0.3rem;
    font-weight: 600;
}

.series-chip.active .chip-count {
    background: rgba(255,255,255,0.25);
}

.product-info {
    padding: 1.25rem;
}

.product-info h3 {
    font-size: 0.95rem;
    margin-bottom: 0.6rem;
    color: var(--text-primary);
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
}

.product-specs {
    list-style: none;
    margin: 0.5rem 0;
}

.product-specs li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.product-specs li::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary-accent);
    flex-shrink: 0;
}

.product-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-details {
    flex: 1;
    padding: 0.55rem;
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
}

.btn-details:hover {
    border-color: var(--primary);
    color: var(--primary-accent);
}

.btn-quote {
    flex: 1;
    padding: 0.55rem;
    background: var(--primary);
    border: 1.5px solid var(--primary);
    color: var(--white);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    text-decoration: none;
}

.btn-quote:hover {
    background: #0a3d6b;
}

/* ===== REVIEWS SECTION ===== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.review-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    border: 1.5px solid var(--border);
}

.review-card:hover {
    box-shadow: var(--shadow-md);
}

.review-image {
    height: 220px;
    overflow: hidden;
    background: var(--bg);
}

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

.review-content {
    padding: 1.25rem;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.6rem;
}

.reviewer-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.review-stars {
    color: #f59e0b;
    font-size: 0.85rem;
    display: flex;
    gap: 1px;
}

.review-text {
    color: var(--text-secondary);
    line-height: 1.55;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.review-product {
    font-size: 0.75rem;
    color: var(--primary-accent);
    font-weight: 500;
}

/* ===== GRADING SECTION ===== */
.grade-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.grade-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    border: 1.5px solid var(--border);
    transition: all var(--transition);
}

.grade-card:hover {
    border-color: var(--primary-accent);
    box-shadow: var(--shadow-md);
}

.grade-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.grade-badge {
    background: var(--primary);
    color: var(--white);
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    font-family: 'DM Sans', sans-serif;
    flex-shrink: 0;
}

.grade-title h3 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.15rem;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
}

.grade-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.grade-features {
    list-style: none;
}

.grade-features li {
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
}

.grade-features li:last-child {
    border-bottom: none;
}

.grade-features li .material-symbols-rounded {
    color: var(--primary-accent);
    font-size: 1rem;
}

/* ===== FAQ SECTION ===== */
.faq-container {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
}

.faq-item:first-child {
    border-top: 1px solid var(--border);
}

.faq-question {
    padding: 1.25rem 0;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
}

.faq-icon {
    transition: transform 0.3s ease;
    color: var(--text-muted);
    font-size: 1.25rem;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding-bottom: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.9rem;
}

/* ===== QUOTE SECTION ===== */
.section--dark {
    background: var(--primary);
    color: var(--white);
}

.section--dark .section-header h2 {
    color: var(--white);
}

.section--dark .section-header p {
    color: rgba(255,255,255,0.7);
}

.quote-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 800px;
    margin: 0 auto;
}

/* Honeypot — hidden from users, visible to bots */
.form-hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; overflow: hidden; }

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.85rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    transition: all var(--transition);
    color: var(--text-primary);
    background: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

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

.submit-btn {
    width: 100%;
    padding: 0.85rem;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    font-family: 'DM Sans', sans-serif;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-btn:hover {
    background: #0a3d6b;
    box-shadow: 0 4px 12px rgba(15, 76, 129, 0.3);
}

.form-success {
    display: none;
    text-align: center;
    padding: 2.5rem 1.5rem;
}

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

.form-success .success-icon {
    font-size: 3rem;
    color: var(--whatsapp);
    margin-bottom: 1rem;
}

.form-success h3 {
    font-family: 'DM Sans', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-success p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-header {
    padding: 1.5rem 1.75rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.3rem;
    color: var(--text-primary);
    font-family: 'DM Sans', sans-serif;
    font-weight: 700;
}

.close-modal {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition);
}

.close-modal:hover {
    color: var(--text-primary);
    background: var(--border-light);
}

.modal-body {
    padding: 1.75rem;
}

.spec-list {
    list-style: none;
}

.spec-list li {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.spec-list li:last-child {
    border-bottom: none;
}

.spec-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.spec-value {
    color: var(--text-secondary);
    text-align: right;
    font-size: 0.875rem;
}

/* ===== FOOTER ===== */
footer {
    background: var(--primary);
    color: var(--white);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
}

.footer-section p {
    color: rgba(255,255,255,0.6);
    font-size: 0.875rem;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 0.6rem;
}

.footer-section ul li,
.footer-section ul li a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color var(--transition);
}

.footer-section ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.8rem;
}

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
    background: var(--whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
    cursor: pointer;
    z-index: 999;
    transition: all var(--transition);
    text-decoration: none;
    color: white;
}

.whatsapp-float .material-symbols-rounded {
    font-size: 1.7rem;
}

.whatsapp-float:hover {
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
}

.back-to-top {
    position: fixed;
    bottom: 5.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    background: var(--white);
    border: 1.5px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    transition: all var(--transition);
    color: var(--text-primary);
    opacity: 0;
    pointer-events: none;
    box-shadow: var(--shadow-sm);
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

/* ===== ANIMATIONS ===== */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grade-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .showcase-image {
        min-height: 280px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 3.5rem 1.25rem;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 0.75rem 1.5rem 1rem;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        gap: 0;
    }

    .nav-links.mobile-open {
        display: flex;
    }

    .nav-links li a {
        display: block;
        padding: 0.7rem 0;
        border-bottom: 1px solid var(--border-light);
        border-radius: 0;
    }

    .nav-links li:last-child a {
        border-bottom: none;
    }

    .header-actions {
        display: flex;
        gap: 0.4rem;
    }

    .header-actions .btn {
        padding: 0.45rem 0.75rem;
        font-size: 0.75rem;
    }

    .header-actions .btn span.btn-label {
        display: none;
    }

    .slide-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 2.5rem 1.25rem;
        gap: 2rem;
    }

    .slide-text h1 {
        font-size: 2rem;
    }

    .slide-text .description {
        max-width: 100%;
    }

    .slide-image {
        order: -1;
        aspect-ratio: 16/10;
        padding: 1rem;
    }

    .slide-actions {
        justify-content: center;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .category-img-wrapper {
        height: 80px;
    }

    .carousel-nav {
        display: none;
    }

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .tab-btn {
        min-width: 76px;
        font-size: 0.7rem;
    }

    .tab-img {
        width: 38px;
        height: 38px;
    }

    .series-filter {
        gap: 0.35rem;
        padding: 0.75rem 0 0.25rem;
    }

    .series-chip {
        padding: 0.35rem 0.7rem;
        font-size: 0.72rem;
    }
}

@media (max-width: 480px) {
    .slide-text h1 {
        font-size: 1.7rem;
    }

    .quote-form {
        padding: 1.5rem;
    }

    .product-card {
        width: 240px;
    }

    .product-image {
        height: 160px;
    }
}
    </style>