/* ==========================================================================
   VALLORANI LEGNO - Brand Style Guidelines & Design System
   ========================================================================== */

/* Design Tokens & Custom Variables */
:root {
    /* Opaque Beige Palette (#c09a78 and variations) */
    --color-beige: #c09a78;
    --color-beige-light: #d6bda5;
    --color-beige-ultra-light: #f4ece4;
    --color-beige-dark: #9e7552;
    --color-beige-charcoal: #2a2521;
    --color-beige-glow: rgba(192, 154, 120, 0.4);
    --color-beige-glow-soft: rgba(192, 154, 120, 0.15);
    
    /* Backgrounds (Alternating Light & Dark) */
    --bg-primary-dark: #0f0e0f;
    --bg-secondary-dark: #19181b;
    --bg-tertiary-dark: #222024;
    --bg-black-pure: #000000;
    
    --bg-primary-light: #faf8f5;
    --bg-secondary-light: #f2eee9;
    --bg-tertiary-light: #e6ded5;
    
    /* Text Colors */
    --text-primary-dark: #f4f4f6;
    --text-secondary-dark: #a8a8b5;
    --text-muted-dark: #70707c;
    
    --text-primary-light: #2c2825;
    --text-secondary-light: #5e5751;
    --text-muted-light: #8e857c;
    
    /* Glassmorphism */
    --glass-bg-dark: rgba(25, 24, 27, 0.75);
    --glass-border-dark: rgba(255, 255, 255, 0.05);
    --glass-border-hover-dark: rgba(192, 154, 120, 0.2);
    
    --glass-bg-light: rgba(242, 238, 233, 0.85);
    --glass-border-light: rgba(192, 154, 120, 0.15);
    --glass-border-hover-light: rgba(192, 154, 120, 0.4);
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-display: 'Outfit', sans-serif;
    
    /* Transitions */
    --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    
    /* Container Widths */
    --container-max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary-dark);
    color: var(--text-primary-dark);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary-dark);
    border-radius: 4px;
    border: 2px solid var(--bg-primary-dark);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-beige-dark);
}

/* ==========================================================================
   Section backgrounds and alternates
   ========================================================================== */
.bg-light {
    background-color: var(--bg-primary-light);
    color: var(--text-primary-light);
}

.bg-light h1, .bg-light h2, .bg-light h3, .bg-light h4 {
    color: var(--text-primary-light);
}

.bg-light .section-desc {
    color: var(--text-secondary-light);
}

.bg-light .section-subtitle {
    color: var(--text-secondary-light);
}

/* ==========================================================================
   Typography & Utility Classes
   ========================================================================== */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary-dark);
}

.text-gradient-amber {
    background: linear-gradient(135deg, var(--text-primary-dark) 30%, var(--color-beige-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bg-light .text-gradient-amber {
    background: linear-gradient(135deg, var(--text-primary-light) 30%, var(--color-beige-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-glow-amber {
    color: var(--color-beige);
    text-shadow: 0 0 10px var(--color-beige-glow);
}

.block { display: block; }
.mb-15 { margin-bottom: 15px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mb-60 { margin-bottom: 60px; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-50 { margin-top: 50px; }
.pt-30 { padding-top: 30px; }
.py-60 { padding: 60px 0; }
.py-120 { padding: 120px 0; }

.max-w-600 { max-width: 600px; }
.max-w-800 { max-width: 800px; }
.margin-auto { margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.align-center { align-items: center; }

/* Grid Layouts */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.grid {
    display: grid;
    gap: 30px;
}

.grid-2-col { grid-template-columns: repeat(2, 1fr); }
.grid-3-col { grid-template-columns: repeat(3, 1fr); }
.grid-4-col { grid-template-columns: repeat(4, 1fr); }

.gap-30 { gap: 30px; }
.gap-40 { gap: 40px; }
.gap-60 { gap: 60px; }

/* Sections Styling */
.bg-dark-alt {
    background-color: var(--bg-secondary-dark);
}

.bg-darker {
    background-color: var(--bg-black-pure);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.border-top {
    border-top: 1px solid var(--glass-border-dark);
}

.bg-light .border-top {
    border-top: 1px solid var(--glass-border-light);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 4px;
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-beige);
    color: var(--bg-black-pure);
    border: 1px solid var(--color-beige);
    font-weight: 600;
}

.btn-primary:hover {
    background-color: var(--color-beige-light);
    border-color: var(--color-beige-light);
    transform: translateY(-2px);
}

.btn-glow {
    box-shadow: 0 4px 20px rgba(192, 154, 120, 0.35);
}

.btn-glow:hover {
    box-shadow: 0 6px 25px var(--color-beige-glow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary-dark);
    border: 1px solid var(--glass-border-dark);
    backdrop-filter: blur(5px);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary-dark);
    border-color: var(--color-beige);
    transform: translateY(-2px);
}

.bg-light .btn-secondary {
    color: var(--text-primary-light);
    border-color: var(--glass-border-light);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--text-primary-dark);
    border: 1px solid var(--color-beige);
}

.bg-light .btn-outline {
    color: var(--text-primary-light);
    border-color: var(--color-beige-dark);
}

.btn-outline:hover {
    background-color: rgba(192, 154, 120, 0.1);
    border-color: var(--color-beige-light);
    color: var(--color-beige);
}

.bg-light .btn-outline:hover {
    background-color: rgba(192, 154, 120, 0.1);
    border-color: var(--color-beige-dark);
    color: var(--color-beige-dark);
}

.btn-full-width {
    width: 100%;
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.05rem;
}

.btn i {
    margin-right: 8px;
    font-size: 1.1em;
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    border-bottom: 1px solid transparent;
}

.header-transparent {
    background-color: transparent;
    padding: 24px 0;
}

.header-scrolled {
    background-color: var(--glass-bg-light);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 16px 0;
    border-bottom: 1px solid var(--glass-border-light);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.header-scrolled .logo {
    color: var(--text-primary-light);
}

.header-scrolled .logo-accent {
    color: var(--color-beige-dark);
}

.header-scrolled .nav-link {
    color: var(--text-secondary-light);
}

.header-scrolled .nav-link:hover, .header-scrolled .nav-link.active {
    color: var(--text-primary-light);
}

.header-scrolled .btn-outline {
    color: var(--text-primary-light);
    border-color: var(--color-beige);
}

.header-scrolled .btn-outline:hover {
    background-color: rgba(192, 154, 120, 0.1);
    border-color: var(--color-beige-dark);
    color: var(--color-beige-dark);
}

.header-scrolled .mobile-toggle .bar {
    background-color: var(--text-primary-light);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--text-primary-dark);
}

.logo-accent {
    font-family: var(--font-serif);
    font-weight: 400;
    font-style: italic;
    color: var(--color-beige);
}

.nav-menu ul {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--text-secondary-dark);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary-dark);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-beige);
    transition: var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
}

.mobile-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary-dark);
    transition: var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    background-image: url('assets/hero_bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(15, 14, 15, 0.95) 0%, rgba(15, 14, 15, 0.8) 45%, rgba(15, 14, 15, 0.2) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    padding-top: 100px;
}

.hero-content {
    max-width: 650px;
}

.hero-subtitle {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 4.2rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-lead {
    color: var(--text-secondary-dark);
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.mouse-icon {
    display: block;
    width: 24px;
    height: 38px;
    border: 1px solid var(--text-secondary-dark);
    border-radius: 12px;
    position: relative;
}

.mouse-icon .wheel {
    display: block;
    width: 4px;
    height: 8px;
    background-color: var(--color-beige);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translate(-50%, 0); }
    40% { transform: translate(-50%, -10px); }
    60% { transform: translate(-50%, -5px); }
}

/* ==========================================================================
   About Us Section
   ========================================================================== */
.about-visual {
    position: relative;
}

.image-wrapper-border {
    position: relative;
    border-radius: 4px;
    padding: 12px;
    background: linear-gradient(135deg, var(--glass-border-light) 0%, rgba(192,154,120,0.15) 100%);
    border: 1px solid var(--glass-border-light);
}

.bg-light .image-wrapper-border {
    background: linear-gradient(135deg, rgba(192,154,120,0.05) 0%, rgba(192,154,120,0.2) 100%);
    border-color: var(--glass-border-hover-light);
}

.about-img, .safety-img {
    border-radius: 2px;
    width: 100%;
    object-fit: cover;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.experience-badge {
    position: absolute;
    bottom: -30px;
    right: -30px;
    padding: 24px 30px;
    border-radius: 4px;
    border: 1px solid var(--glass-border-hover-light);
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    background-color: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.experience-badge .badge-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-beige-dark);
    text-shadow: 0 0 15px var(--color-beige-glow);
}

.experience-badge .badge-text {
    font-family: var(--font-display);
    font-size: 0.9rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-primary-light);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 35px;
}

.feature-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 4px;
    background-color: rgba(192, 154, 120, 0.1);
    border: 1px solid rgba(192, 154, 120, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-beige-dark);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.feature-item h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
    font-family: var(--font-display);
}

.feature-item p {
    color: var(--text-secondary-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   Catalog Section
   ========================================================================== */
.catalog-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.filter-tab {
    padding: 10px 24px;
    border-radius: 4px;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary-dark);
    border: 1px solid var(--glass-border-dark);
    background-color: rgba(255, 255, 255, 0.02);
    transition: var(--transition-fast);
}

.filter-tab:hover, .filter-tab.active {
    color: var(--text-primary-dark);
    border-color: var(--color-beige);
    background-color: rgba(192, 154, 120, 0.08);
}

.catalog-grid {
    transition: var(--transition-smooth);
}

.product-card {
    background-color: var(--bg-tertiary-dark);
    border-radius: 4px;
    border: 1px solid var(--glass-border-dark);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition-smooth);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--glass-border-hover-dark);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 20px var(--color-beige-glow-soft);
}

.product-img-wrapper {
    position: relative;
    padding-top: 100%;
    overflow: hidden;
}

.product-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-img {
    transform: scale(1.08);
}

.product-tag {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 6px 14px;
    border-radius: 3px;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-beige);
    border: 1px solid rgba(192, 154, 120, 0.3);
    z-index: 10;
}

.bg-blur-dark {
    background-color: rgba(15, 14, 15, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.product-info {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-title {
    font-size: 1.4rem;
    font-family: var(--font-serif);
    margin-bottom: 12px;
}

.product-description {
    color: var(--text-secondary-dark);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.5;
    flex-grow: 1;
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
    padding: 15px 0;
    border-top: 1px solid var(--glass-border-dark);
    border-bottom: 1px solid var(--glass-border-dark);
}

.product-specs span {
    font-size: 0.8rem;
    color: var(--text-secondary-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-specs i {
    color: var(--color-beige);
}

.product-price-row {
    margin-bottom: 20px;
}

.product-price {
    display: flex;
    flex-direction: column;
}

.price-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted-dark);
}

.price-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-beige);
}

.price-value.text-muted {
    color: var(--text-primary-dark);
    font-style: italic;
    font-weight: 400;
    font-size: 1.5rem;
}

.price-installments {
    font-size: 0.8rem;
    color: var(--text-secondary-dark);
}

/* ==========================================================================
   Safety Section (Light background)
   ========================================================================== */
.safety-check-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 25px;
}

.safety-check-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.safety-check-item i {
    margin-top: 4px;
    font-size: 1.1rem;
}

.safety-check-item span {
    color: var(--text-secondary-light);
    font-size: 1rem;
    line-height: 1.5;
}

.safety-check-item strong {
    color: var(--text-primary-light);
}

.text-amber {
    color: var(--color-beige-dark);
}

/* Alert Box */
.alert-box {
    display: flex;
    gap: 20px;
    padding: 24px;
    border-radius: 4px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.alert-warning {
    background-color: var(--bg-secondary-light);
    border: 1px solid var(--glass-border-hover-light);
}

.alert-icon {
    font-size: 1.5rem;
    color: var(--color-beige-dark);
    flex-shrink: 0;
}

.alert-content {
    color: var(--text-secondary-light);
}

.alert-content strong {
    color: var(--text-primary-light);
}

/* ==========================================================================
   B2B & Hospitality
   ========================================================================== */
.b2b-card {
    padding: 40px;
    border-radius: 4px;
    border: 1px solid var(--glass-border-dark);
    transition: var(--transition-smooth);
}

.b2b-card:hover {
    border-color: var(--glass-border-hover-dark);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.b2b-icon {
    font-size: 2.2rem;
    color: var(--color-beige);
    margin-bottom: 24px;
}

.b2b-card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.b2b-card p {
    color: var(--text-secondary-dark);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ==========================================================================
   FAQ Section (Light background)
   ========================================================================== */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    border: 1px solid var(--glass-border-light);
    background-color: var(--bg-secondary-light);
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--glass-border-hover-light);
}

.faq-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 30px;
    text-align: left;
    color: var(--text-primary-light);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.faq-icon {
    font-size: 0.9rem;
    color: var(--text-secondary-light);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item.active {
    border-color: var(--color-beige-dark);
}

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

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-content p {
    padding: 0 30px 24px 30px;
    color: var(--text-secondary-light);
    font-size: 0.98rem;
    line-height: 1.6;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-icons a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--bg-tertiary-dark);
    border: 1px solid var(--glass-border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary-dark);
    transition: var(--transition-fast);
}

.social-icons a:hover {
    color: var(--color-beige);
    border-color: var(--color-beige);
    background-color: rgba(192, 154, 120, 0.05);
    transform: translateY(-3px);
}

.footer-container h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
    color: var(--text-primary-dark);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary-dark);
    font-size: 0.95rem;
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact li {
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-contact i {
    color: var(--color-beige);
    width: 16px;
    text-align: center;
}

.developer-tag {
    font-size: 0.8rem;
    color: var(--text-muted-dark);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background-color: var(--glass-bg-dark);
    border: 1px solid var(--glass-border-dark);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary-dark);
    opacity: 0;
    visibility: hidden;
    z-index: 99;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    transition: var(--transition-smooth);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    color: var(--text-primary-dark);
    border-color: var(--color-beige);
    box-shadow: 0 5px 20px var(--color-beige-glow);
    transform: translateY(-3px);
}

/* ==========================================================================
   Responsive & Adaptive Media Queries
   ========================================================================== */

/* Medium Devices: Tablets (1024px and down) */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2.3rem;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
    
    .grid-4-col {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .grid-3-col {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Small Devices: Phablets/Phones (768px and down) */
@media (max-width: 768px) {
    .py-120 {
        padding: 80px 0;
    }
    
    .grid-2-col, .grid-3-col, .grid-4-col {
        grid-template-columns: 1fr;
    }
    
    .gap-60 {
        gap: 40px;
    }
    
    /* Header Mobile Drawer */
    .mobile-toggle {
        display: flex;
        z-index: 1010;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-secondary-dark);
        border-left: 1px solid var(--glass-border-dark);
        padding: 100px 40px 40px 40px;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
        transition: var(--transition-smooth);
        z-index: 1005;
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 24px;
    }
    
    .nav-link {
        font-size: 1.15rem;
    }
    
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 15px;
    }
    
    .nav-actions .btn {
        padding: 10px 18px;
        font-size: 0.85rem;
    }
    
    /* Hamburger Transform */
    .mobile-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* Hero Adjustments */
    .hero-title {
        font-size: 2.6rem;
    }
    
    .hero-lead {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .experience-badge {
        position: static;
        margin-top: 20px;
        justify-content: center;
        transform: none;
        box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    }
}

/* Extra Small Devices: Mobile Portrait (480px and down) */
@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .product-info {
        padding: 20px;
    }
    
    .faq-trigger {
        padding: 20px;
        font-size: 0.95rem;
    }
    
    .faq-content p {
        padding: 0 20px 20px 20px;
        font-size: 0.9rem;
    }
}

/* Scroll Animation Reveal Classes */
.reveal-left, .reveal-right, .reveal-up {
    opacity: 0;
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left { transform: translateX(-50px); }
.reveal-right { transform: translateX(50px); }
.reveal-up { transform: translateY(50px); }

.reveal-left.active, .reveal-right.active, .reveal-up.active {
    opacity: 1;
    transform: translate(0);
}