/* ==========================================================================
   RAZOR HYPER-PRECISION 3D DIE-CAST STUDIO - CORE DESIGN SYSTEM
   Theme: Obsidian Cyber Luxury / Hyper Automotive Aesthetic
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@600;700;800;900&family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* --- CSS Variables & Design Tokens --- */
:root {
    /* Color Palette */
    --bg-primary: #08090d;
    --bg-surface: #0f121a;
    --bg-surface-elevated: #151a26;
    --bg-glass: rgba(15, 18, 26, 0.75);
    --bg-glass-card: rgba(21, 26, 38, 0.65);
    --bg-glass-hover: rgba(28, 35, 51, 0.85);

    /* Neon & Accent Colors */
    --neon-green: #00ff88;
    --neon-green-glow: rgba(0, 255, 136, 0.4);
    --neon-cyan: #00d4ff;
    --neon-cyan-glow: rgba(0, 212, 255, 0.35);
    --neon-purple: #9d4edd;
    --neon-purple-glow: rgba(157, 78, 221, 0.35);
    --accent-gold: #ffb703;
    --accent-red: #ff3366;

    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-neon: #00ff88;

    /* Borders & Dividers */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 255, 136, 0.3);
    --border-cyan-glow: rgba(0, 212, 255, 0.3);

    /* Typography */
    --font-heading: 'Orbitron', -apple-system, sans-serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Space Grotesk', monospace;

    /* Shadows & Effects */
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.8);
    --shadow-neon-green: 0 0 25px rgba(0, 255, 136, 0.25);
    --shadow-neon-cyan: 0 0 25px rgba(0, 212, 255, 0.25);

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

/* --- Global Reset & Base Setup --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 10%, rgba(0, 255, 136, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 85% 60%, rgba(0, 212, 255, 0.04) 0%, transparent 45%),
        radial-gradient(circle at 50% 90%, rgba(157, 78, 221, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
}

main {
    flex-grow: 1;
    position: relative;
    z-index: 1;
}

/* Cyber Grid Background overlay */
.cyber-grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-size: 50px 50px;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    pointer-events: none;
    z-index: 0;
}

.container {
    width: 92%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
    position: relative;
}

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-surface-elevated);
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--neon-green);
}

/* ==========================================================================
   HEADER & NAVIGATION BAR (Glassmorphism Floating Bar)
   ========================================================================== */

header.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition-base);
    padding: 0.75rem 0;
}

header.site-header.scrolled {
    padding: 0.5rem 0;
    background: rgba(8, 9, 13, 0.92);
    border-bottom: 1px solid var(--border-glow);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), var(--shadow-neon-green);
}

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

.logo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--text-primary);
    text-transform: uppercase;
}

.logo-brand img {
    height: 42px;
    width: auto;
    filter: drop-shadow(0 0 10px var(--neon-green-glow));
    transition: transform var(--transition-bounce);
}

.logo-brand:hover img {
    transform: rotate(5deg) scale(1.08);
}

.logo-accent {
    color: var(--neon-green);
    text-shadow: 0 0 12px var(--neon-green-glow);
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.75rem;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
    box-shadow: 0 0 8px var(--neon-green);
    transition: width var(--transition-base);
    border-radius: var(--radius-full);
}

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

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

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

.cart-toggle-btn {
    position: relative;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.cart-toggle-btn:hover {
    border-color: var(--neon-green);
    box-shadow: 0 0 15px var(--neon-green-glow);
    transform: translateY(-1px);
}

.cart-badge {
    background: var(--neon-green);
    color: #000;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    box-shadow: 0 0 10px var(--neon-green);
    animation: pulse-glow 2s infinite;
}

.btn-header-auth {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 212, 255, 0.1));
    border: 1px solid var(--border-glow);
    color: var(--neon-green);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
}

.btn-header-auth:hover {
    background: var(--neon-green);
    color: #000;
    box-shadow: 0 0 20px var(--neon-green-glow);
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   BUTTONS & INTERACTIVE CONTROLS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, #00ff88 0%, #00d4ff 100%);
    color: #050608;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.6);
    color: #000;
}

.btn-secondary {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
    box-shadow: 0 0 20px var(--neon-cyan-glow);
    transform: translateY(-2px);
}

.btn-danger {
    background: rgba(255, 51, 102, 0.15);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
}

.btn-danger:hover {
    background: var(--accent-red);
    color: #fff;
    box-shadow: 0 0 20px rgba(255, 51, 102, 0.5);
}

.btn-glow {
    animation: neon-pulse 3s infinite alternate;
}

/* 3D Button Press Effect */
.btn:active {
    transform: translateY(1px) scale(0.98);
}

/* ==========================================================================
   HERO SECTION - 3D INTERACTIVE SHOWCASE
   ========================================================================== */

.hero-section {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding: 3rem 0;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge-container {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 255, 136, 0.08);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-full);
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--neon-green);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.hero-badge-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--neon-green);
    box-shadow: 0 0 10px var(--neon-green);
    animation: pulse-glow 1.5s infinite;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4.2rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-title-highlight {
    background: linear-gradient(135deg, #00ff88 0%, #00d4ff 50%, #9d4edd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(0, 255, 136, 0.2);
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.2rem;
    max-width: 540px;
    line-height: 1.7;
}

.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 3rem;
}

.hero-telemetry-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
}

.stat-item h4 {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.stat-item h4 span {
    color: var(--neon-green);
}

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

/* 3D Canvas Stage in Hero */
.hero-3d-stage {
    position: relative;
    width: 100%;
    height: 520px;
    border-radius: var(--radius-lg);
    background: radial-gradient(circle at center, rgba(21, 26, 38, 0.8) 0%, rgba(8, 9, 13, 0.95) 80%);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-lg), inset 0 0 40px rgba(0, 255, 136, 0.05);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-canvas-container {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    cursor: grab;
}

.hero-canvas-container:active {
    cursor: grabbing;
}

/* 3D View Controls HUD */
.hud-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(15, 18, 26, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    z-index: 10;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.hud-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.75rem;
    transition: var(--transition-fast);
}

.hud-btn:hover, .hud-btn.active {
    background: var(--bg-surface-elevated);
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.hud-hint {
    position: absolute;
    top: 20px;
    right: 20px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.4);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   PRODUCT SHOWCASE & 3D TILT CARDS
   ========================================================================== */

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
    position: relative;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0.75rem auto 0;
}

/* Filters & Search Toolbar */
.catalog-toolbar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    padding: 1.25rem 1.75rem;
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
    backdrop-filter: blur(16px);
}

.search-box-wrapper {
    flex: 1;
    min-width: 280px;
    position: relative;
}

.search-box-wrapper input {
    width: 100%;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 12px 18px 12px 44px;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.search-box-wrapper input:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: 0 0 15px var(--neon-green-glow);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.1rem;
}

.filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-pill {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-pill:hover, .filter-pill.active {
    background: var(--neon-green);
    color: #000;
    border-color: var(--neon-green);
    font-weight: 700;
    box-shadow: 0 0 15px var(--neon-green-glow);
}

/* 3D Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    perspective: 1000px;
}

/* 3D Tilt Card Component */
.card-3d-wrap {
    transform-style: preserve-3d;
    transition: transform var(--transition-base);
}

.product-card-3d {
    background: var(--bg-glass-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    padding: 1.5rem;
    position: relative;
    backdrop-filter: blur(12px);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card-3d:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 255, 136, 0.15);
}

/* Specular Light Glare */
.card-glare {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.12) 0%, transparent 60%);
    pointer-events: none;
    border-radius: var(--radius-lg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card-3d:hover .card-glare {
    opacity: 1;
}

.card-badge-tag {
    position: absolute;
    top: 18px;
    left: 18px;
    background: rgba(0, 255, 136, 0.15);
    border: 1px solid var(--border-glow);
    color: var(--neon-green);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
    z-index: 2;
}

.card-scale-tag {
    position: absolute;
    top: 18px;
    right: 18px;
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid var(--border-cyan-glow);
    color: var(--neon-cyan);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    z-index: 2;
}

.card-img-stage {
    position: relative;
    width: 100%;
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1rem 0;
    border-radius: var(--radius-md);
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
}

.card-img-stage img {
    max-height: 180px;
    object-fit: contain;
    filter: drop-shadow(0 15px 20px rgba(0, 0, 0, 0.6));
    transition: transform var(--transition-bounce);
}

.product-card-3d:hover .card-img-stage img {
    transform: translateY(-8px) scale(1.06);
}

.card-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-category {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.35rem;
}

.card-title {
    font-family: var(--font-body);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.35;
}

.card-rating {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--accent-gold);
    margin-bottom: 1rem;
}

.card-rating span {
    color: var(--text-muted);
}

.card-bottom-row {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
}

.card-price {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--neon-green);
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.25);
}

.card-original-price {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-left: 6px;
}

.card-actions {
    display: flex;
    gap: 8px;
}

.btn-card-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-card-icon:hover {
    border-color: var(--neon-green);
    color: var(--neon-green);
    box-shadow: 0 0 12px var(--neon-green-glow);
}

/* ==========================================================================
   UNIVERSAL PRODUCT DETAIL PAGE (product.html)
   ========================================================================== */

.product-detail-section {
    padding: 3rem 0 5rem;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 3.5rem;
    align-items: start;
}

/* Left: 3D Stage & Interactive Gallery */
.product-showcase-box {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
    backdrop-filter: blur(16px);
    position: sticky;
    top: 100px;
}

.pdp-main-image-wrap {
    width: 100%;
    height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border-radius: var(--radius-md);
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.05) 0%, rgba(8, 9, 13, 0.6) 80%);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.pdp-main-img {
    max-height: 340px;
    object-fit: contain;
    filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.8));
    transition: transform 0.4s ease;
}

.pdp-main-img:hover {
    transform: scale(1.08) rotate(-2deg);
}

.pdp-360-indicator {
    position: absolute;
    bottom: 16px;
    left: 16px;
    background: rgba(15, 18, 26, 0.8);
    border: 1px solid var(--border-glow);
    color: var(--neon-green);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.gallery-thumbs {
    display: flex;
    gap: 12px;
    margin-top: 1.5rem;
}

.gallery-thumb {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gallery-thumb.active, .gallery-thumb:hover {
    border-color: var(--neon-green);
    box-shadow: 0 0 12px var(--neon-green-glow);
}

/* Right: Product Details */
.pdp-header {
    margin-bottom: 1.5rem;
}

.pdp-category-scale {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0.75rem;
}

.pdp-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.pdp-price-row {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.pdp-price {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--neon-green);
    text-shadow: 0 0 15px var(--neon-green-glow);
}

.pdp-stock-status {
    color: var(--neon-green);
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.pdp-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* Features List */
.pdp-features-list {
    list-style: none;
    margin-bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.pdp-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.pdp-feature-icon {
    color: var(--neon-green);
    margin-top: 3px;
    font-size: 1.1rem;
}

/* Buy Action Panel */
.pdp-buy-panel {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    margin-bottom: 2.5rem;
}

.pdp-qty-row {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.qty-control-box {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
}

.qty-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.qty-btn:hover {
    color: var(--neon-green);
}

.qty-num {
    width: 50px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    border: none;
    background: transparent;
}

.pdp-cta-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Specs Telemetry Table */
.pdp-specs-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-top: 3rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.spec-entry {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
}

.spec-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.spec-val {
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 4px;
}

/* ==========================================================================
   CONSOLIDATED CHECKOUT & PAYMENT PAGE
   ========================================================================== */

.checkout-section {
    padding: 3rem 0 5rem;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

.checkout-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    backdrop-filter: blur(16px);
    margin-bottom: 2rem;
}

.checkout-card h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1rem;
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 14px 18px;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: 0 0 15px var(--neon-green-glow);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* Payment Method Selectors */
.payment-selector-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.payment-method-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 1.25rem 1.5rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
}

.payment-method-card:hover {
    border-color: var(--border-glow);
    background: var(--bg-surface-elevated);
}

.payment-method-card.selected {
    border-color: var(--neon-green);
    background: rgba(0, 255, 136, 0.08);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.15);
}

.payment-radio {
    accent-color: var(--neon-green);
    transform: scale(1.2);
}

.payment-info h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.payment-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Order Summary Box */
.summary-sticky {
    position: sticky;
    top: 100px;
}

.summary-item-preview {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 1.5rem;
}

.summary-thumb {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 4px;
    object-fit: contain;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.85rem;
}

.summary-row.total {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    border-top: 1px solid var(--border-subtle);
    padding-top: 1.25rem;
    margin-top: 1.25rem;
}

.summary-row.total .total-amount {
    font-family: var(--font-mono);
    color: var(--neon-green);
    text-shadow: 0 0 15px var(--neon-green-glow);
}

/* ==========================================================================
   SLIDING CART DRAWER
   ========================================================================== */

.cart-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.cart-drawer-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.cart-drawer {
    position: fixed;
    top: 0;
    right: -480px;
    width: 100%;
    max-width: 440px;
    height: 100vh;
    background: var(--bg-surface-elevated);
    border-left: 1px solid var(--border-subtle);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.8);
    z-index: 2001;
    display: flex;
    flex-direction: column;
    transition: right var(--transition-base);
}

.cart-drawer.open {
    right: 0;
}

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

.cart-drawer-header h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--text-primary);
}

.cart-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.cart-close-btn:hover {
    color: var(--neon-green);
}

.cart-drawer-body {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.cart-empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.cart-item-row {
    display: flex;
    gap: 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 1rem;
    border-radius: var(--radius-md);
    position: relative;
}

.cart-item-img {
    width: 70px;
    height: 70px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    padding: 4px;
}

.cart-item-info {
    flex-grow: 1;
}

.cart-item-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.cart-item-price {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--neon-green);
    font-weight: 700;
}

.cart-drawer-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-surface);
}

/* ==========================================================================
   UNIFIED AUTHENTICATION & ADMIN PORTAL
   ========================================================================== */

.auth-wrapper {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
}

.auth-card {
    width: 100%;
    max-width: 480px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    position: relative;
}

.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 2rem;
}

.auth-tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 12px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    transition: var(--transition-fast);
}

.auth-tab-btn.active {
    color: var(--neon-green);
}

.auth-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--neon-green);
    box-shadow: 0 0 10px var(--neon-green);
}

/* Admin Dashboard Grid */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}

.admin-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
    backdrop-filter: blur(16px);
    transition: var(--transition-base);
}

.admin-card:hover {
    border-color: var(--neon-green);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md), 0 0 25px rgba(0, 255, 136, 0.15);
}

/* ==========================================================================
   FOOTER (High-Tech Footer)
   ========================================================================== */

footer.site-footer {
    background: #050608;
    border-top: 1px solid var(--border-subtle);
    padding: 4.5rem 0 2rem;
    margin-top: 5rem;
    position: relative;
    z-index: 10;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 1rem;
    max-width: 320px;
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    letter-spacing: 1px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

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

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

/* ==========================================================================
   ANIMATIONS & KEYFRAMES
   ========================================================================== */

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--neon-green);
        opacity: 1;
    }
    50% {
        box-shadow: 0 0 20px var(--neon-green), 0 0 35px var(--neon-green);
        opacity: 0.85;
    }
}

@keyframes neon-pulse {
    0% {
        box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
    }
    100% {
        box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
    }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--neon-green);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), var(--shadow-neon-green);
    padding: 14px 20px;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: toast-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */

@media (max-width: 1024px) {
    .hero-grid, .product-detail-grid, .checkout-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .hero-3d-stage {
        height: 420px;
    }
    .product-showcase-box {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-primary);
        flex-direction: column;
        padding: 3rem 2rem;
        gap: 2rem;
        transition: left var(--transition-base);
        border-top: 1px solid var(--border-subtle);
    }
    .nav-menu.open {
        left: 0;
    }
    .mobile-menu-btn {
        display: block;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-telemetry-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .pdp-cta-buttons {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}