/* ═══════════════════════════════════════════════════════════
   GCB Computers — Public Storefront
   Premium dark-theme design with glassmorphism
   ═══════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ── */
:root {
    /* ── Light Theme (Default) ── */
    --bg-primary: #f5f7fa;
    --bg-secondary: #e2e8f0;
    --bg-surface: rgba(0, 0, 0, 0.03);
    --bg-surface-hover: rgba(0, 0, 0, 0.06);
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-border: rgba(0, 0, 0, 0.08);

    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-accent: #2563eb;

    /* Accent */
    --accent-blue: #2563eb;
    --accent-purple: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --accent-glow: rgba(37, 99, 235, 0.08);

    /* Status */
    --stock-green: #059669;
    --stock-low: #3b82f6; /* Blue for a positive stock look */
    --stock-out: #dc2626;

    /* Category badges */
    --badge-laptops: rgba(37, 99, 235, 0.08);
    --badge-laptops-text: #2563eb;
    --badge-desktops: rgba(124, 58, 237, 0.08);
    --badge-desktops-text: #7c3aed;
    --badge-servers: rgba(16, 185, 129, 0.08);
    --badge-servers-text: #059669;

    /* Layout */
    --max-width: 1400px;
    --header-height: 72px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dark-theme {
    /* ── Dark Theme (Toggle override) ── */
    --bg-primary: #07070d;
    --bg-secondary: #0d0d16;
    --bg-surface: rgba(255, 255, 255, 0.03);
    --bg-surface-hover: rgba(255, 255, 255, 0.06);
    --bg-glass: rgba(15, 15, 25, 0.65);
    --bg-glass-border: rgba(255, 255, 255, 0.08);

    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #8a8a9a;
    --text-tertiary: #5a5a6e;
    --text-accent: #60a5fa;

    /* Accent */
    --accent-blue: #60a5fa;
    --accent-purple: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
    --accent-glow: rgba(96, 165, 250, 0.15);

    /* Status */
    --stock-green: #34d399;
    --stock-low: #60a5fa; /* Blue for a positive stock look */
    --stock-out: #f87171;

    /* Category badges */
    --badge-laptops: rgba(96, 165, 250, 0.15);
    --badge-laptops-text: #60a5fa;
    --badge-desktops: rgba(167, 139, 250, 0.15);
    --badge-desktops-text: #a78bfa;
    --badge-servers: rgba(52, 211, 153, 0.15);
    --badge-servers-text: #34d399;
}


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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
}

/* Subtle background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse 80% 60% at 50% 0%, var(--bg-glow) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}


/* ═══════════════════════ Header ═══════════════════════ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    border-bottom: 1px solid var(--bg-glass-border);
    height: var(--header-height);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.brand-logo-img {
    width: 38px;
    height: 38px;
    object-fit: contain;
    border-radius: 50%;
    /* Subtle glow matching the brand style */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.brand-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.brand-tagline {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    font-weight: 400;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle-btn {
    background: var(--bg-surface);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--ease-out);
}

.theme-toggle-btn:hover {
    color: var(--text-primary);
    background: var(--bg-surface-hover);
    border-color: var(--accent-blue);
}

/* Hide sun in light theme, show moon */
.theme-toggle-btn .sun-icon {
    display: none;
}
.theme-toggle-btn .moon-icon {
    display: block;
}

/* Hide moon in dark theme, show sun */
.dark-theme .theme-toggle-btn .sun-icon {
    display: block;
}
.dark-theme .theme-toggle-btn .moon-icon {
    display: none;
}

.header-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(52, 211, 153, 0.08);
    border: 1px solid rgba(52, 211, 153, 0.15);
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--stock-green);
    white-space: nowrap;
}

.header-badge svg {
    flex-shrink: 0;
}


/* ═══════════════════════ Main Content ═══════════════════════ */

.main-content {
    position: relative;
    z-index: 1;
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px 24px 64px;
    width: 100%;
}


/* ═══════════════════════ Controls Bar ═══════════════════════ */

.controls-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

/* Category Tabs */
.category-tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-surface);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 4px;
}

.tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    white-space: nowrap;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--bg-surface-hover);
}

.tab.active {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 16px rgba(96, 165, 250, 0.2);
}

.tab svg {
    flex-shrink: 0;
    opacity: 0.8;
}

.tab.active svg {
    opacity: 1;
}

/* Search */
.search-container {
    position: relative;
    width: 300px;
    flex-shrink: 0;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 10px 40px 10px 42px;
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    outline: none;
    transition: all 0.3s var(--ease-out);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-input:focus {
    border-color: var(--accent-blue);
    background: var(--bg-surface-hover);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-clear {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.search-clear:hover {
    color: var(--text-primary);
}

/* Controls Right */
.controls-right {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-grow: 1;
    justify-content: flex-end;
}

/* Sort Select Container */
.sort-container {
    position: relative;
    width: 200px;
    flex-shrink: 0;
}

.sort-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
    z-index: 1;
}

.sort-select {
    width: 100%;
    padding: 10px 36px 10px 42px;
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    outline: none;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.sort-select:focus {
    border-color: var(--accent-blue);
    background: var(--bg-surface-hover);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Custom Arrow for select */
.sort-container::after {
    content: '';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--text-tertiary);
    pointer-events: none;
    transition: border-top-color 0.2s;
}

.sort-container:hover::after {
    border-top-color: var(--text-secondary);
}

/* ═══════════════════════ Store Hero & Info ═══════════════════════ */

.store-hero {
    margin-bottom: 24px;
}

.hero-card {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.12),
        0 0 0 1px rgba(255, 255, 255, 0.05);
    overflow: hidden;
    position: relative;
}

/* Background glow behind the hero card */
.hero-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.12) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    z-index: 1;
}

.hero-branding {
    display: flex;
    align-items: center;
    gap: 16px;
}

.hero-logo-img {
    width: 86px;
    height: 86px;
    object-fit: contain;
    border-radius: 50%;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.hero-title-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-slogan {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.hero-detail-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.hero-detail-icon {
    color: var(--accent-blue);
    flex-shrink: 0;
}

.hero-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 250px;
    border: 1px solid var(--bg-glass-border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    z-index: 1;
}

/* Compact version for product details page */
.detail-store-info {
    margin-top: 24px;
    border-top: 1px solid var(--bg-glass-border);
    padding-top: 24px;
}

.detail-store-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    background: var(--bg-surface);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.detail-store-header {
    display: flex;
    align-items: center;
    gap: 32px;
    flex: 1;
    transition: all 0.3s var(--ease-out);
}

.detail-store-logo {
    width: 86px;
    height: 86px;
    object-fit: contain;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
    transition: transform 0.3s var(--ease-out);
}

.detail-store-logo:hover {
    transform: scale(1.05);
}

.detail-store-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.detail-store-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.4;
}

.detail-store-icon {
    color: var(--accent-blue);
    flex-shrink: 0;
    width: 22px !important;
    height: 22px !important;
}

.detail-store-map {
    width: 300px;
    height: 300px;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--bg-glass-border);
    flex-shrink: 0;
}

/* Responsive updates for store hero and maps */
@media (max-width: 768px) {
    .hero-card {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .detail-store-card {
        flex-direction: column;
        align-items: stretch;
        gap: 24px;
        padding: 24px;
    }
    .detail-store-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
    }
    .detail-store-item {
        justify-content: center;
    }
    .detail-store-map {
        width: 100%;
        height: 250px;
        aspect-ratio: auto;
    }
}




/* ═══════════════════════ Results Info ═══════════════════════ */

.results-info {
    font-size: 0.82rem;
    color: var(--text-tertiary);
    margin-bottom: 20px;
    min-height: 20px;
    transition: opacity 0.2s;
}

.results-info span {
    color: var(--text-secondary);
    font-weight: 500;
}


/* ═══════════════════════ Product Grid ═══════════════════════ */

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

/* Product Card */
.product-card {
    position: relative;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s var(--ease-out);
    animation: cardFadeIn 0.5s var(--ease-out) both;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.05);
}

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger card animations */
.product-card:nth-child(1)  { animation-delay: 0.02s; }
.product-card:nth-child(2)  { animation-delay: 0.06s; }
.product-card:nth-child(3)  { animation-delay: 0.10s; }
.product-card:nth-child(4)  { animation-delay: 0.14s; }
.product-card:nth-child(5)  { animation-delay: 0.18s; }
.product-card:nth-child(6)  { animation-delay: 0.22s; }
.product-card:nth-child(7)  { animation-delay: 0.26s; }
.product-card:nth-child(8)  { animation-delay: 0.30s; }
.product-card:nth-child(9)  { animation-delay: 0.34s; }
.product-card:nth-child(10) { animation-delay: 0.38s; }
.product-card:nth-child(11) { animation-delay: 0.42s; }
.product-card:nth-child(12) { animation-delay: 0.46s; }

/* Card Image */
.card-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: var(--bg-secondary);
    overflow: hidden;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: contain; /* Prevents zooming and cropping */
    padding: 8px;        /* Adds safe margins to prevent border cutoff */
    transition: transform 0.5s var(--ease-out);
}

.product-card:hover .card-image {
    transform: scale(1.02);
}

/* Placeholder for missing images */
.card-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    color: var(--text-tertiary);
}

/* Category badge on card */
.card-category {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 5px 12px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.card-category.laptops {
    background: var(--badge-laptops);
    color: var(--badge-laptops-text);
    border: 1px solid rgba(96, 165, 250, 0.2);
}

.card-category.desktops {
    background: var(--badge-desktops);
    color: var(--badge-desktops-text);
    border: 1px solid rgba(167, 139, 250, 0.2);
}

.card-category.servers {
    background: var(--badge-servers);
    color: var(--badge-servers-text);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

/* Card Addon Badges */
.card-addons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: -6px;
    margin-bottom: 14px;
}

.card-addon {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
}

.card-addon svg {
    flex-shrink: 0;
}

.addon-warranty:hover {
    background: rgba(37, 99, 235, 0.14) !important;
    border-color: rgba(37, 99, 235, 0.35) !important;
    transform: translateY(-1px);
}

.dark-theme .addon-warranty:hover {
    background: rgba(96, 165, 250, 0.2) !important;
    border-color: rgba(96, 165, 250, 0.45) !important;
}

/* Addon specific themes */
.card-addon.addon-warranty {
    background: rgba(37, 99, 235, 0.06);
    color: var(--accent-blue);
    border: 1px solid rgba(37, 99, 235, 0.12);
}

.card-addon.addon-asis {
    background: rgba(220, 38, 38, 0.06);
    color: var(--stock-out);
    border: 1px solid rgba(220, 38, 38, 0.12);
}

.dark-theme .card-addon.addon-warranty {
    background: rgba(96, 165, 250, 0.1);
    border-color: rgba(96, 165, 250, 0.2);
}

.dark-theme .card-addon.addon-asis {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.2);
}

/* Card Body */
.card-body {
    padding: 18px 20px 20px;
}

.card-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-price {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.card-price .currency {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    vertical-align: top;
    position: relative;
    top: 2px;
}

.card-stock {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 500;
}

.stock-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.stock-in .stock-dot {
    background: var(--stock-green);
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.4);
}

.stock-in {
    color: var(--stock-green);
}

.stock-low .stock-dot {
    background: var(--stock-low);
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.4);
}

.stock-low {
    color: var(--stock-low);
}


/* ═══════════════════════ Skeleton Loading ═══════════════════════ */

.skeleton-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.skeleton-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    background: linear-gradient(90deg, 
        var(--bg-secondary) 25%, 
        rgba(255, 255, 255, 0.04) 50%, 
        var(--bg-secondary) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.8s ease-in-out infinite;
}

.skeleton-text {
    height: 14px;
    margin: 18px 20px 0;
    border-radius: 6px;
    background: linear-gradient(90deg, 
        var(--bg-surface) 25%, 
        rgba(255, 255, 255, 0.04) 50%, 
        var(--bg-surface) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.8s ease-in-out infinite;
}

.skeleton-text.short {
    width: 40%;
    margin-bottom: 20px;
    margin-top: 12px;
}

@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}


/* ═══════════════════════ Empty & Error States ═══════════════════════ */

.empty-state,
.error-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-tertiary);
}

.empty-title,
.error-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: 16px;
}

.empty-subtitle,
.error-subtitle {
    font-size: 0.88rem;
    margin-top: 6px;
}

.retry-btn {
    margin-top: 24px;
    padding: 10px 28px;
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.retry-btn:hover {
    background: var(--bg-surface-hover);
    border-color: var(--accent-blue);
}


/* ═══════════════════════ Footer ═══════════════════════ */

.site-footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--bg-glass-border);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.footer-detail {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    line-height: 1.6;
}

.footer-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-tertiary);
}


/* ═══════════════════════ Utilities ═══════════════════════ */

.hidden {
    display: none !important;
}


/* ═══════════════════════ Responsive ═══════════════════════ */

@media (max-width: 900px) {
    .controls-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .category-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .category-tabs::-webkit-scrollbar {
        display: none;
    }

    .controls-right {
        width: 100%;
        justify-content: stretch;
    }

    .search-container, .sort-container {
        flex: 1;
        width: auto;
    }
}

@media (max-width: 500px) {
    .controls-right {
        flex-direction: column;
        align-items: stretch;
    }

    .search-container, .sort-container {
        width: 100%;
        flex: none;
    }
}

@media (max-width: 700px) {
    :root {
        --header-height: 64px;
    }

    .header-badge {
        display: none;
    }

    .brand-text h1 {
        font-size: 1.1rem;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
        gap: 14px;
    }

    .main-content {
        padding: 20px 14px 48px;
    }

    .tab {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    .tab svg {
        display: none;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 400px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
}


/* ═══════════════════════ Product Details Modal & Carousel ═══════════════════════ */

/* Prevent scroll on body when modal is open */
body.modal-open {
    overflow: hidden;
}

.catalog-view.hidden,
.product-detail-view.hidden {
    display: none !important;
}

.catalog-view,
.product-detail-view {
    animation: fadeTransition 0.4s var(--ease-out) both;
}

@keyframes fadeTransition {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Breadcrumbs / Back button */
.detail-breadcrumbs {
    margin-bottom: 24px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    transition: all 0.2s var(--ease-out);
    padding: 8px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
}

.back-link:hover {
    color: var(--text-primary);
    background: var(--bg-surface-hover);
    border-color: var(--accent-blue);
    transform: translateX(-2px);
}

.back-link svg {
    transition: transform 0.2s;
}

.back-link:hover svg {
    transform: translateX(-2px);
}

/* Detail Content Stack (vertical layout) */
.detail-content-stack {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Left Column: Gallery & Carousel */
.detail-gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    width: 100%;
}

.carousel-viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--bg-surface);
    border: 1px solid var(--bg-glass-border);
    display: flex;
    align-items: center;
}

.carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.45s cubic-bezier(0.25, 1, 0.5, 1);
}

.carousel-slide {
    min-width: 100%;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 16px;
}

.carousel-slide img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(15, 15, 25, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--ease-out);
    z-index: 2;
}

.carousel-arrow.prev {
    left: 20px;
}

.carousel-arrow.next {
    right: 20px;
}

.carousel-viewport:hover .carousel-arrow.visible {
    opacity: 1;
    pointer-events: auto;
}

.carousel-arrow:hover {
    background: var(--accent-gradient);
    transform: translateY(-50%) scale(1.08);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.carousel-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--text-tertiary);
    opacity: 0.35;
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
}

.carousel-dot.active {
    opacity: 1;
    background: var(--accent-blue);
    transform: scale(1.25);
}

/* Detail Header Info */
.detail-header-info {
    margin-bottom: 0;
}

.detail-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 10px;
}

.detail-category {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-accent);
}

.detail-addons {
    display: flex;
    gap: 6px;
}

.detail-title {
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.35;
    color: var(--text-primary);
    letter-spacing: -0.015em;
}

.detail-pricing-stock {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    border-top: 1px solid var(--bg-glass-border);
    border-bottom: 1px solid var(--bg-glass-border);
    padding: 20px 0;
    margin-bottom: 0;
}

.detail-price {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.detail-stock {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    font-weight: 600;
}

.detail-specs-section {
    margin-top: 8px;
    margin-bottom: 28px;
}

.detail-specs-section h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.detail-specs-content {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

.detail-action-notice {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: rgba(37, 99, 235, 0.06);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-md);
    color: var(--accent-blue);
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.4;
}

.dark-theme .detail-action-notice {
    background: rgba(96, 165, 250, 0.08);
    border-color: rgba(96, 165, 250, 0.18);
    color: var(--accent-blue);
}

.detail-action-notice svg {
    flex-shrink: 0;
}

/* Responsive details behavior */
@media (max-width: 768px) {
    .detail-title {
        font-size: 1.35rem;
    }

    .detail-price {
        font-size: 1.85rem;
    }
}

/* Description Markdown styling */
.desc-list {
    padding-left: 20px;
    margin-bottom: 16px;
    list-style-type: disc;
}

.desc-list li {
    margin-bottom: 6px;
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.desc-para {
    margin-bottom: 16px;
    line-height: 1.65;
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.desc-para code, .desc-list code {
    background: var(--bg-secondary);
    border: 1px solid var(--bg-glass-border);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: Consolas, Monaco, monospace;
    font-size: 0.85em;
    color: var(--text-accent);
}

.desc-para strong, .desc-list strong {
    font-weight: 700;
    color: var(--text-primary);
}

.desc-para em, .desc-list em {
    font-style: italic;
    color: var(--text-primary);
}