@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ==========================================
   CSS VARIABLES & CUSTOM THEME
   ========================================== */
:root {
    /* Color Palette */
    --bg-black: #08080c;
    --bg-darker: #0d0d15;
    --bg-dark: #121220;
    --bg-card: rgba(18, 18, 32, 0.45);
    --border-light: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.2);
    
    /* Neon Accents */
    --accent-blue: #00f2fe;      /* XREAL Cyan */
    --accent-purple: #9b51e0;    /* Rokid Purple */
    --accent-green: #00ff87;     /* RayNeo Emerald */
    --accent-meta: #0081fb;      /* Meta Blue */
    --text-primary: #ffffff;
    --text-secondary: #a0a0ba;
    --text-muted: #62627a;
    
    /* Glow Effects */
    --glow-blue: 0 0 20px rgba(0, 242, 254, 0.25);
    --glow-purple: 0 0 20px rgba(155, 81, 224, 0.25);
    --glow-green: 0 0 20px rgba(0, 255, 135, 0.25);
    --glow-meta: 0 0 20px rgba(0, 129, 251, 0.25);

    /* Fonts */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Outfit', sans-serif;
    
    /* Layouts */
    --container-width: 1280px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-quick: all 0.2s ease;
}

/* ==========================================
   BASE & RESET
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-blue) var(--bg-black);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-black);
    color: var(--text-primary);
    font-family: var(--font-body);
}

body {
    overflow-x: hidden;
    line-height: 1.6;
    background: radial-gradient(circle at 50% 0%, #15152a 0%, var(--bg-black) 70%);
    background-attachment: fixed;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-black);
}
::-webkit-scrollbar-thumb {
    background: #1f1f38;
    border-radius: 4px;
    border: 2px solid var(--bg-black);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
    font-weight: 400;
}

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

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

/* ==========================================
   GLASSMORPHISM & GRID UTILITIES
   ========================================== */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-light);
    border-radius: 16px;
}

.glow-border-blue:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--glow-blue);
}

.glow-border-purple:hover {
    border-color: var(--accent-purple);
    box-shadow: var(--glow-purple);
}

.glow-border-green:hover {
    border-color: var(--accent-green);
    box-shadow: var(--glow-green);
}

.glow-border-meta:hover {
    border-color: var(--accent-meta);
    box-shadow: var(--glow-meta);
}

.gradient-text {
    background: linear-gradient(135deg, #fff 30%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-alt {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 50%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 8rem 0 4rem 0;
    position: relative;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    font-size: 0.95rem;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    color: var(--bg-black);
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 242, 254, 0.5), 0 0 15px rgba(155, 81, 224, 0.4);
    color: #fff;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

/* ==========================================
   HEADER / NAVIGATION
   ========================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(8, 8, 12, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-smooth);
}

header.scrolled {
    background: rgba(8, 8, 12, 0.9);
    padding: 0.5rem 0;
    border-color: rgba(0, 242, 254, 0.15);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo i {
    color: var(--accent-blue);
    text-shadow: var(--glow-blue);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

nav a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    transition: var(--transition-smooth);
}

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

.menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    z-index: 10;
}

.hero-tagline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--accent-blue);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.05);
}

.hero-content h1 {
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 1.2rem;
}

.hero-image-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-glow-bg {
    position: absolute;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(155, 81, 224, 0.15) 0%, rgba(0, 242, 254, 0.08) 50%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: 1;
    animation: pulseGlow 8s infinite alternate ease-in-out;
}

.hero-image {
    z-index: 2;
    filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.6));
    max-height: 520px;
    object-fit: contain;
    animation: floatImage 6s infinite ease-in-out;
    border-radius: 24px;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 3.5rem;
    border-top: 1px solid var(--border-light);
    padding-top: 2rem;
}

.stat-item h3 {
    font-size: 2.2rem;
    color: var(--accent-blue);
    font-family: var(--font-heading);
}

.stat-item p {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Animations */
@keyframes floatImage {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

@keyframes pulseGlow {
    0% { transform: scale(0.9); opacity: 0.8; }
    100% { transform: scale(1.1); opacity: 1; }
}

/* ==========================================
   BRAND SPOTLIGHT
   ========================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4.5rem auto;
}

.section-header .tagline {
    color: var(--accent-blue);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 0.5rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.brand-card {
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.brand-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    transition: var(--transition-smooth);
}

/* Accent modifications for Brand cards */
.brand-meta::before { background: var(--accent-meta); }
.brand-xreal::before { background: var(--accent-blue); }
.brand-rokid::before { background: var(--accent-purple); }
.brand-sony::before { background: var(--accent-green); }

.brand-card .brand-logo-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: var(--transition-smooth);
}

.brand-meta .brand-logo-icon { color: var(--accent-meta); }
.brand-xreal .brand-logo-icon { color: var(--accent-blue); }
.brand-rokid .brand-logo-icon { color: var(--accent-purple); }
.brand-sony .brand-logo-icon { color: var(--accent-green); }

.brand-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
}

.brand-card p {
    font-size: 0.9rem;
    line-height: 1.5;
}

.brand-card:hover {
    transform: translateY(-8px);
}

.brand-card.active {
    background: rgba(255, 255, 255, 0.08);
}
.brand-meta.active { border-color: var(--accent-meta); box-shadow: var(--glow-meta); }
.brand-xreal.active { border-color: var(--accent-blue); box-shadow: var(--glow-blue); }
.brand-rokid.active { border-color: var(--accent-purple); box-shadow: var(--glow-purple); }
.brand-sony.active { border-color: var(--accent-green); box-shadow: var(--glow-green); }

/* ==========================================
   PRODUCT CATALOG (FILTERABLE)
   ========================================== */
.catalog-controls {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3.5rem;
}

.filter-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 0.6rem 1.4rem;
    font-family: var(--font-heading);
    font-weight: 500;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition-quick);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--text-primary);
    color: var(--bg-black);
    border-color: var(--text-primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(285px, 1fr));
    gap: 2rem;
    transition: var(--transition-smooth);
}

.product-card {
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
    height: 100%;
}

.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.35rem 0.8rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
}

.badge-ai { background: rgba(0, 129, 251, 0.15); border: 1px solid var(--accent-meta); color: var(--accent-meta); }
.badge-display { background: rgba(0, 242, 254, 0.15); border: 1px solid var(--accent-blue); color: var(--accent-blue); }
.badge-spatial { background: rgba(155, 81, 224, 0.15); border: 1px solid var(--accent-purple); color: var(--accent-purple); }
.badge-ar { background: rgba(0, 255, 135, 0.15); border: 1px solid var(--accent-green); color: var(--accent-green); }
.badge-hot { background: rgba(255, 75, 43, 0.15); border: 1px solid #ff4b2b; color: #ff4b2b; box-shadow: 0 0 10px rgba(255, 75, 43, 0.2); }

.product-card.highlighted-card {
    border-color: rgba(255, 75, 43, 0.25) !important;
    box-shadow: 0 0 20px rgba(255, 75, 43, 0.05) !important;
}
.product-card.highlighted-card:hover {
    border-color: rgba(255, 75, 43, 0.6) !important;
    box-shadow: 0 0 30px rgba(255, 75, 43, 0.2) !important;
}

.product-compare-checkbox {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(8, 8, 12, 0.6);
    backdrop-filter: blur(8px);
    padding: 0.4rem 0.7rem;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-quick);
}

.product-compare-checkbox input {
    cursor: pointer;
    accent-color: var(--accent-blue);
}

.product-compare-checkbox:hover {
    border-color: var(--border-hover);
}

.product-img-wrapper {
    width: 100%;
    height: 220px;
    background: rgba(255, 255, 255, 0.02);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border-light);
}

.product-img {
    height: 80%;
    width: 80%;
    object-fit: contain;
    transition: var(--transition-smooth);
}

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

.product-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-brand {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.product-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    line-height: 1.2;
}

.product-desc {
    font-size: 0.85rem;
    margin-bottom: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.5;
    flex-grow: 1;
}

.product-specs-summary {
    list-style: none;
    margin-bottom: 1.5rem;
    border-top: 1px solid var(--border-light);
    padding-top: 1rem;
}

.product-specs-summary li {
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.product-specs-summary li i {
    color: var(--accent-blue);
    font-size: 0.85rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-light);
    padding-top: 1rem;
    margin-top: auto;
}

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

.price-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.price-value {
    font-size: 1.15rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.02);
}

/* Brand specific card outline on hover */
.product-card[data-brand="meta"]:hover { border-color: rgba(0, 129, 251, 0.3); }
.product-card[data-brand="xreal"]:hover { border-color: rgba(0, 242, 254, 0.3); }
.product-card[data-brand="rokid"]:hover { border-color: rgba(155, 81, 224, 0.3); }
.product-card[data-brand="sony"]:hover { border-color: rgba(0, 255, 135, 0.3); }

/* ==========================================
   INTERACTIVE COMPARE DRAWER
   ========================================== */
.compare-drawer {
    position: fixed;
    bottom: -150px;
    left: 0;
    width: 100%;
    z-index: 999;
    padding: 1.2rem 0;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.5);
    background: rgba(8, 8, 12, 0.9);
    border-top: 1px solid rgba(0, 242, 254, 0.2);
}

.compare-drawer.active {
    bottom: 0;
}

.compare-drawer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.compare-items-list {
    display: flex;
    gap: 1.2rem;
}

.compare-item-bubble {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    padding: 0.4rem 0.8rem;
    border-radius: 12px;
    font-size: 0.85rem;
    position: relative;
    padding-right: 2rem;
}

.compare-item-bubble .remove-btn {
    position: absolute;
    right: 0.5rem;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition-quick);
}

.compare-item-bubble .remove-btn:hover {
    color: #ff5e5e;
}

.compare-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* ==========================================
   COMPARE MODAL / WINDOW
   ========================================== */
.compare-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1001;
    background: rgba(5, 5, 8, 0.95);
    backdrop-filter: blur(25px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.compare-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.compare-modal-content {
    width: 90%;
    max-width: 1100px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 2.5rem;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition-quick);
}

.close-modal:hover {
    background: #ff5e5e;
    border-color: #ff5e5e;
    color: white;
}

.compare-table-wrapper {
    margin-top: 2rem;
    overflow-x: auto;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.compare-table th, .compare-table td {
    padding: 1.2rem;
    border-bottom: 1px solid var(--border-light);
}

.compare-table th {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 600;
}

.compare-table .spec-header {
    background: rgba(255, 255, 255, 0.02);
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.compare-product-col {
    width: 25%;
    text-align: center;
}

.compare-product-img {
    height: 100px;
    object-fit: contain;
    margin: 0 auto 0.8rem auto;
}

.compare-product-name {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.compare-product-brand {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.compare-table td.spec-name {
    font-weight: 600;
    color: var(--text-secondary);
    width: 20%;
}

.compare-table tr:hover td {
    background: rgba(255, 255, 255, 0.01);
}

/* ==========================================
   SEO ARTICLES & BUYING GUIDES
   ========================================== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.blog-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
    transition: var(--transition-smooth);
}

.blog-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
}

.blog-img {
    height: 200px;
    background: rgba(255, 255, 255, 0.01);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--border-light);
}

.blog-img i {
    font-size: 3.5rem;
    color: var(--accent-blue);
    opacity: 0.8;
}

.blog-content {
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.8rem;
}

.blog-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.blog-card h3 {
    font-size: 1.3rem;
    line-height: 1.3;
    margin-bottom: 0.8rem;
    transition: var(--transition-quick);
}

.blog-card:hover h3 {
    color: var(--accent-blue);
}

.blog-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.blog-more-btn {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--accent-blue);
    margin-top: auto;
}

.blog-more-btn i {
    transition: var(--transition-quick);
}

.blog-card:hover .blog-more-btn i {
    transform: translateX(3px);
}

/* ==========================================
   CONSULTATION FORM
   ========================================== */
.consultation-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.consult-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.consult-content p {
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.consult-benefits {
    list-style: none;
}

.consult-benefits li {
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.consult-benefits li i {
    color: var(--accent-green);
    font-size: 1.1rem;
    margin-top: 0.2rem;
}

.consult-form {
    padding: 3rem;
}

.form-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-control {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 0.9rem 1.2rem;
    color: white;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-quick);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
}

textarea.form-control {
    min-height: 110px;
    resize: vertical;
}

.form-label {
    position: absolute;
    left: 1.2rem;
    top: 0.9rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition-quick);
    font-size: 0.95rem;
}

.form-control:focus ~ .form-label,
.form-control:not(:placeholder-shown) ~ .form-label {
    top: -0.6rem;
    left: 0.8rem;
    font-size: 0.75rem;
    color: var(--accent-blue);
    background: var(--bg-darker);
    padding: 0 0.4rem;
    border-radius: 4px;
}

/* Dynamic notification card styles */
.toast {
    position: fixed;
    top: 2rem;
    right: 2rem;
    padding: 1.2rem 2rem;
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transform: translateY(-50px);
    opacity: 0;
    transition: var(--transition-smooth);
    border-left: 4px solid var(--accent-green);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.toast.active {
    transform: translateY(0);
    opacity: 1;
}

/* ==========================================
   FOOTER
   ========================================== */
footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-light);
    padding: 5rem 0 2rem 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand .logo {
    margin-bottom: 1.2rem;
}

.footer-brand p {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    max-width: 280px;
}

.social-links {
    display: flex;
    gap: 0.8rem;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-quick);
}

.social-btn:hover {
    background: var(--accent-blue);
    color: var(--bg-black);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.footer-column h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column ul a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-column ul a:hover {
    color: var(--text-primary);
    padding-left: 3px;
}

.footer-column .contact-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-column .contact-info p {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.footer-column .contact-info p i {
    color: var(--accent-blue);
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

/* ==========================================
   RESPONSIVE DESIGN (BREAKPOINTS)
   ========================================== */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    .hero-image {
        max-height: 400px;
    }
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    section {
        padding: 5rem 0 2.5rem 0;
    }
    .hero {
        padding-top: 80px;
        min-height: auto;
        padding-bottom: 4rem;
    }
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    .hero-content h1 {
        font-size: 2.6rem;
    }
    .hero-content p {
        margin: 0 auto 2rem auto;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .consultation-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .consult-content {
        text-align: center;
    }
    .consult-benefits {
        display: inline-block;
        text-align: left;
    }
    .consult-form {
        padding: 2rem;
    }
    .menu-btn {
        display: block;
    }
    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-black);
        z-index: 999;
        transition: var(--transition-smooth);
        padding: 3rem;
        border-top: 1px solid var(--border-light);
    }
    nav.active {
        left: 0;
    }
    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    nav a {
        font-size: 1.2rem;
    }
    .compare-drawer-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .compare-items-list {
        flex-wrap: wrap;
        justify-content: center;
    }
    .compare-modal-content {
        padding: 1.5rem;
        width: 95%;
    }
    .compare-table th, .compare-table td {
        padding: 0.8rem;
    }
    .compare-product-name {
        font-size: 0.95rem;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .brands-grid {
        grid-template-columns: 1fr;
    }
    .blog-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-actions {
        flex-direction: column;
        gap: 0.8rem;
        width: 100%;
    }
    .btn {
        width: 100%;
    }
}

/* ==========================================
   INTERACTIVE GUIDED BUYING QUIZ (UPGRADE)
   ========================================== */
.quiz-section {
    background: radial-gradient(circle at 50% 100%, #17122a 0%, var(--bg-black) 80%);
}

.quiz-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem;
    overflow: hidden;
}

.quiz-progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    margin-bottom: 3rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    box-shadow: var(--glow-blue);
    transition: var(--transition-smooth);
}

.quiz-step {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.quiz-step.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.quiz-step-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.quiz-step-title i {
    color: var(--accent-blue);
}

.quiz-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.quiz-option {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 2.2rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.quiz-option i {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 1.2rem;
    transition: var(--transition-quick);
}

.quiz-option h4 {
    font-size: 1.1rem;
    margin-bottom: 0.6rem;
}

.quiz-option p {
    font-size: 0.8rem;
    line-height: 1.5;
}

.quiz-option:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.quiz-option:hover i {
    color: var(--accent-blue);
}

.quiz-option.selected {
    background: rgba(0, 242, 254, 0.08);
    border-color: var(--accent-blue);
    box-shadow: var(--glow-blue);
}

.quiz-option.selected i {
    color: var(--accent-blue);
    text-shadow: var(--glow-blue);
}

.quiz-nav-buttons {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--border-light);
    padding-top: 2rem;
    margin-top: 1rem;
}

/* Quiz Result CSS */
.quiz-result-header {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin-bottom: 1rem;
}

.quiz-result-recommendation {
    max-width: 600px;
    margin: 2rem auto;
    padding: 2rem;
    border-radius: 20px;
    border: 1px dashed var(--accent-blue);
    background: rgba(0, 242, 254, 0.03);
}

/* ==========================================
   DIOPTER SIMULATOR (UPGRADE)
   ========================================== */
.diopter-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    padding: 3rem;
    align-items: center;
}

.diopter-screen-wrapper {
    background: #000;
    border-radius: 20px;
    border: 2px solid var(--border-light);
    height: 320px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 0 40px rgba(0,0,0,0.8);
}

.diopter-virtual-screen {
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(18, 18, 32, 0.7), rgba(8, 8, 12, 0.9)), url('assets/hero_glasses.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: filter 0.4s ease;
}

.virtual-hud-content {
    text-align: center;
    padding: 2rem;
}

.virtual-hud-content h3 {
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.virtual-hud-content p {
    color: var(--accent-blue);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.hud-time {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1px solid var(--border-light);
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.hud-graphics {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    font-size: 1.5rem;
    color: rgba(255,255,255,0.7);
}

.diopter-controls {
    display: flex;
    flex-direction: column;
}

.slider-group {
    margin: 2rem 0;
}

.slider-val-label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.diopter-slider {
    width: 100%;
    -webkit-appearance: none;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.diopter-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    box-shadow: var(--glow-blue);
    transition: var(--transition-quick);
}

.diopter-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider-ticks {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.simulation-toggle-box {
    display: flex;
    align-items: center;
    border-top: 1px solid var(--border-light);
    padding-top: 1.5rem;
    margin-top: 1rem;
}

/* Pure CSS Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .4s;
    border: 1px solid var(--border-light);
}

.switch .slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
}

.switch input:checked + .slider {
    background-color: var(--accent-green);
}

.switch input:checked + .slider:before {
    transform: translateX(24px);
}

.switch .slider.round {
    border-radius: 34px;
}

.switch .slider.round:before {
    border-radius: 50%;
}

.sim-note {
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* ==========================================
   HEALTH & SOFTWARE BENEFIT SECTION (UPGRADE)
   ========================================== */
.tech-benefits {
    background: radial-gradient(circle at 0% 0%, #121f2a 0%, var(--bg-black) 70%);
}

.tech-benefits-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.tech-benefit-box {
    padding: 3rem;
    position: relative;
}

.tech-icon-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 2rem;
}

.cert-item {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.2rem;
    margin-bottom: 1rem;
}

.cert-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.6rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(0, 255, 135, 0.08);
    border: 1px solid rgba(0, 255, 135, 0.2);
    color: var(--accent-green);
}

.cert-item p {
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Accordion CSS styling */
.accordion-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.01);
    transition: var(--transition-smooth);
}

.accordion-header {
    padding: 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-quick);
}

.accordion-header span {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.accordion-header .arrow {
    font-size: 0.85rem;
    transition: var(--transition-smooth);
    color: var(--text-muted);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 0 1.2rem;
}

.accordion-body p {
    font-size: 0.85rem;
    line-height: 1.6;
    padding-bottom: 1.2rem;
    color: var(--text-secondary);
}

.accordion-item.active {
    border-color: rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.03);
}

.accordion-item.active .accordion-header {
    color: white;
}

.accordion-item.active .accordion-header .arrow {
    transform: rotate(180deg);
    color: white;
}

.accordion-item.active .accordion-body {
    max-height: 200px;
}

/* Additional Responsive Tweaks */
@media (max-width: 1024px) {
    .diopter-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 2rem;
    }
    .tech-benefits-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .quiz-options {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .quiz-container {
        padding: 2rem;
    }
}

/* ==========================================
   AR OPTICAL DECODER STYLE (GIAI ĐOẠN 3)
   ========================================== */
.optical-tabs-container {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 1.5rem;
    flex-wrap: wrap;
}

.optical-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 1rem 2rem;
    border-radius: 16px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.optical-tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.optical-tab-btn i {
    font-size: 1.2rem;
    transition: var(--transition-quick);
}

/* Active tab styles based on target type */
.optical-tab-btn[data-opt-tab="birdbath"].active {
    background: rgba(0, 242, 254, 0.08);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    box-shadow: var(--glow-blue);
}
.optical-tab-btn[data-opt-tab="birdbath"].active i {
    text-shadow: var(--glow-blue);
}

.optical-tab-btn[data-opt-tab="waveguide"].active {
    background: rgba(0, 255, 135, 0.08);
    border-color: var(--accent-green);
    color: var(--accent-green);
    box-shadow: var(--glow-green);
}
.optical-tab-btn[data-opt-tab="waveguide"].active i {
    text-shadow: var(--glow-green);
}

.optical-tab-btn[data-opt-tab="pancake"].active {
    background: rgba(155, 81, 224, 0.08);
    border-color: var(--accent-purple);
    color: var(--accent-purple);
    box-shadow: var(--glow-purple);
}
.optical-tab-btn[data-opt-tab="pancake"].active i {
    text-shadow: var(--glow-purple);
}

.optical-content {
    position: relative;
    min-height: 400px;
}

.optical-tab-pane {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.optical-tab-pane.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.optical-pane-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 3rem;
    align-items: center;
}

.optical-pane-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.opt-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.3rem 0.8rem;
    border-radius: 8px;
    margin-bottom: 1.2rem;
}

.opt-badge-blue {
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--accent-blue);
}

.opt-badge-green {
    background: rgba(0, 255, 135, 0.08);
    border: 1px solid rgba(0, 255, 135, 0.2);
    color: var(--accent-green);
}

.opt-badge-purple {
    background: rgba(155, 81, 224, 0.08);
    border: 1px solid rgba(155, 81, 224, 0.2);
    color: var(--accent-purple);
}

.opt-specs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.opt-spec-item strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.opt-spec-item p {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

.optical-simulation-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 2rem;
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.5);
    transition: var(--transition-smooth);
}

.optical-simulation-box:hover {
    border-color: var(--border-hover);
}

.sim-view-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 700;
}

.sim-screen-content {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

/* Specific simulations */
.birdbath-sim {
    background-image: radial-gradient(circle at center, rgba(0, 242, 254, 0.1) 0%, rgba(8, 8, 12, 0.9) 70%), url('assets/hero_glasses.png');
    background-size: cover;
    background-position: center;
    border-color: rgba(0, 242, 254, 0.15);
}

.sim-movie-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 1.5rem;
    border-radius: 16px;
    max-width: 90%;
    transform: scale(0.95);
    transition: var(--transition-smooth);
}

.optical-simulation-box:hover .sim-movie-screen {
    transform: scale(1);
    box-shadow: var(--glow-blue);
    border-color: rgba(0, 242, 254, 0.3);
}

.waveguide-sim {
    background-image: radial-gradient(circle at center, rgba(0, 255, 135, 0.05) 0%, rgba(8, 8, 12, 0.9) 80%), url('assets/rayneo_glasses.png');
    background-size: cover;
    background-position: center;
    border-color: rgba(0, 255, 135, 0.15);
}

.sim-hologram-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
    background: rgba(0, 255, 135, 0.03);
    backdrop-filter: blur(3px);
    border: 1px dashed rgba(0, 255, 135, 0.2);
    padding: 1.5rem;
    border-radius: 16px;
    max-width: 90%;
    transform: scale(0.95);
    transition: var(--transition-smooth);
}

.optical-simulation-box:hover .sim-hologram-screen {
    transform: scale(1);
    box-shadow: var(--glow-green);
    border-color: rgba(0, 255, 135, 0.5);
    background: rgba(0, 255, 135, 0.06);
}

.pancake-sim {
    background-image: radial-gradient(circle at center, rgba(155, 81, 224, 0.1) 0%, rgba(8, 8, 12, 0.9) 70%), url('assets/meta_glasses.png');
    background-size: cover;
    background-position: center;
    border-color: rgba(155, 81, 224, 0.15);
}

.sim-immersive-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
    background: rgba(155, 81, 224, 0.05);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(155, 81, 224, 0.2);
    padding: 1.5rem;
    border-radius: 16px;
    max-width: 90%;
    transform: scale(0.95);
    transition: var(--transition-smooth);
}

.optical-simulation-box:hover .sim-immersive-screen {
    transform: scale(1);
    box-shadow: var(--glow-purple);
    border-color: rgba(155, 81, 224, 0.5);
    background: rgba(155, 81, 224, 0.1);
}

/* Animations for simulation box elements */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.1); opacity: 1; }
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================
   FUTURE TECH META ORION BANNER STYLE
   ========================================== */
.orion-banner {
    position: relative;
    box-shadow: 0 15px 40px rgba(0,0,0,0.6);
    transition: var(--transition-smooth);
}

.orion-banner:hover {
    border-color: rgba(0,129,251,0.4) !important;
    box-shadow: 0 20px 50px rgba(0,129,251,0.2);
}

.orion-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 3rem;
    align-items: center;
}

.orion-info {
    z-index: 2;
}

.orion-preview {
    z-index: 2;
}

.orion-spec-card {
    background: rgba(18, 18, 32, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.spec-bar-group {
    display: flex;
    flex-direction: column;
}

.spec-bar-fill {
    transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
    background-size: 200% 200%;
}

.orion-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0,129,251,0.08) 0%, transparent 60%);
    pointer-events: none;
    z-index: 1;
}

/* Responsive adjustments for Optical Decoder */
@media (max-width: 1024px) {
    .optical-pane-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .orion-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}
@media (max-width: 768px) {
    .optical-layout {
        padding: 1.5rem !important;
    }
    .optical-tabs-container {
        gap: 0.8rem;
    }
    .optical-tab-btn {
        width: 100%;
        justify-content: center;
        padding: 0.8rem 1.2rem;
    }
    .orion-banner {
        padding: 2rem !important;
    }
    .orion-badge {
        position: relative !important;
        top: auto !important;
        right: auto !important;
        margin-bottom: 1.5rem;
        display: inline-block;
    }
}

/* ==========================================
   PROMO BANNER SECTION
   ========================================== */
.promo-banner-section {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-black) 100%);
    position: relative;
    overflow: hidden;
}

.promo-banner-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3.5rem;
    align-items: center;
    border-radius: 24px;
    border: 1px solid var(--border-light);
    padding: 3rem;
    position: relative;
    background: radial-gradient(circle at top right, rgba(0, 242, 254, 0.05), rgba(0, 0, 0, 0) 60%);
    box-shadow: var(--shadow-neon-meta);
}

.promo-banner-img-container {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: var(--transition-smooth);
}

.promo-banner-img-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 242, 254, 0.15);
    border-color: rgba(0, 242, 254, 0.3);
}

.promo-banner-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 1/1;
    max-width: 460px;
    margin: 0 auto;
}

.promo-banner-content h2 {
    font-size: 2.2rem;
    line-height: 1.2;
    margin-bottom: 1.2rem;
    font-weight: 800;
}

.promo-banner-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.promo-bullets {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-bottom: 2.5rem;
}

.promo-bullet-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.promo-bullet-item i {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 242, 254, 0.1);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.promo-bullet-item span {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.98rem;
}

@media (max-width: 992px) {
    .promo-banner-wrapper {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 2rem;
    }
    
    .promo-banner-img-container {
        max-width: 360px;
        margin: 0 auto;
    }
}