/* ==========================================================================
   IBTIKAR · 2026 Cyber-Minimalist / Spatial Tech Design System
   Storefront — shared by store, product, cart, checkout, wishlist, track, 404/500
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens
   -------------------------------------------------------------------------- */
:root {
    --indigo: #4f46e5;
    --cyan: #06b6d4;
    --violet: #8b5cf6;
    --emerald: #10b981;

    --font-main: 'Cairo', 'IBM Plex Sans Arabic', system-ui, -apple-system, 'Segoe UI', sans-serif;

    /* Light · ceramic glass */
    --bg-primary: #f6f8fc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #eef2f8;
    --bg-card: rgba(255, 255, 255, 0.74);
    --bg-glass: rgba(255, 255, 255, 0.62);

    --text-primary: #0b1120;
    --text-secondary: #3f4c63;
    --text-muted: #64748b;

    --brand-primary: #4f46e5;
    --brand-primary-hover: #4338ca;
    --brand-secondary: #06b6d4;

    --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
    --gradient-text: linear-gradient(120deg, #4f46e5, #06b6d4 55%, #8b5cf6);

    --border-color: rgba(15, 23, 42, 0.09);
    --border-light: rgba(15, 23, 42, 0.06);

    --specular: inset 0 1px 0 0 rgba(255, 255, 255, 0.9);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 10px 30px -12px rgba(15, 23, 42, 0.18);
    --shadow-lg: 0 24px 60px -20px rgba(15, 23, 42, 0.3);

    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

    --aurora-1: 0.16;
    --aurora-2: 0.14;
    --aurora-3: 0.13;
    --aurora-4: 0.1;
}

/* Dark · deep void obsidian */
[data-theme="dark"] {
    --bg-primary: #030712;
    --bg-secondary: #060913;
    --bg-tertiary: #0c1222;
    --bg-card: rgba(12, 18, 34, 0.74);
    --bg-glass: rgba(6, 9, 19, 0.62);

    --text-primary: #f8fafc;
    --text-secondary: #c3cde3;
    --text-muted: #8595ad;

    --brand-primary: #6366f1;
    --brand-primary-hover: #818cf8;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.05);

    --specular: inset 0 1px 0 0 rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 12px 32px -12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 24px 64px -16px rgba(0, 0, 0, 0.65);

    --gradient-text: linear-gradient(120deg, #a5b4fc, #22d3ee 55%, #c4b5fd);

    --aurora-1: 0.38;
    --aurora-2: 0.3;
    --aurora-3: 0.26;
    --aurora-4: 0.18;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 104px; }

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.65;
    padding-top: 78px; /* fixed-header offset, refined by store.js */
    transition: background var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Aurora mesh · ambient radial blooms */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background:
        radial-gradient(36rem 24rem at 10% 4%, color-mix(in srgb, var(--indigo) calc(var(--aurora-1) * 100%), transparent), transparent 62%),
        radial-gradient(32rem 22rem at 92% 10%, color-mix(in srgb, var(--cyan) calc(var(--aurora-2) * 100%), transparent), transparent 62%),
        radial-gradient(30rem 28rem at 74% 94%, color-mix(in srgb, var(--violet) calc(var(--aurora-3) * 100%), transparent), transparent 62%),
        radial-gradient(26rem 20rem at 2% 90%, color-mix(in srgb, var(--emerald) calc(var(--aurora-4) * 100%), transparent), transparent 62%);
}

/* engineering grid */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    opacity: 0.4;
    background-image:
        linear-gradient(color-mix(in srgb, var(--border-color) 70%, transparent) 1px, transparent 1px),
        linear-gradient(90deg, color-mix(in srgb, var(--border-color) 70%, transparent) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 15%, transparent 76%);
    mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 15%, transparent 76%);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: 1rem; }

::selection { background: color-mix(in srgb, var(--brand-primary) 28%, transparent); color: var(--text-primary); }

.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 1.25rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand-primary) 55%, transparent); outline-offset: 2px; border-radius: 4px; }

/* --------------------------------------------------------------------------
   2. Announcement bar
   -------------------------------------------------------------------------- */
.announce-bar {
    background: linear-gradient(90deg, #030712, #0c1222, #030712);
    color: #f8fafc;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.announce-bar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.5), transparent);
    background-size: 200% 100%;
    animation: shimmer 3.5s linear infinite;
}

/* --------------------------------------------------------------------------
   3. Unified Header · glass canopy
   -------------------------------------------------------------------------- */
.hamburger-btn {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    justify-content: center;
    box-shadow: var(--specular);
    transition: var(--transition);
}
.hamburger-btn:hover { border-color: var(--brand-primary); }
.hamburger-btn span { display: block; width: 20px; height: 2.5px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
.hamburger-btn.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); background: var(--brand-primary); }
.hamburger-btn.active span:nth-child(2) { opacity: 0; }
.hamburger-btn.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); background: var(--brand-primary); }

.navbar-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: color-mix(in srgb, var(--bg-glass) 72%, transparent);
    backdrop-filter: blur(24px) saturate(190%);
    -webkit-backdrop-filter: blur(24px) saturate(190%);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0 0 22px 22px;
    box-shadow: var(--specular);
    transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.navbar-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #4f46e5, #06b6d4, #8b5cf6, #10b981, #4f46e5);
    background-size: 300% 100%;
    animation: gradientShift 6s linear infinite;
    opacity: 0;
    transition: opacity var(--transition);
}
.navbar-header.scrolled {
    background: color-mix(in srgb, var(--bg-glass) 90%, transparent);
    box-shadow: var(--specular), 0 16px 40px -14px rgba(15, 23, 42, 0.24);
}
.navbar-header.scrolled::before { opacity: 1; }

.navbar-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 78px;
    transition: height var(--transition);
}

.logo { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }
.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 24px rgba(79, 70, 229, 0.4);
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow var(--transition);
    animation: glowPulse 3.5s ease-in-out infinite;
}
.logo:hover .logo-icon { transform: rotate(90deg) scale(1.07); box-shadow: 0 0 36px rgba(79, 70, 229, 0.6); }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-size: 1.3rem; font-weight: 900; color: var(--text-primary); letter-spacing: -0.01em; }
.brand-sub { font-size: 0.66rem; font-weight: 800; color: var(--brand-primary); letter-spacing: 0.14em; text-transform: uppercase; }

.nav-menu { display: flex; }
.nav-list { display: flex; gap: 1.3rem; }
.nav-link {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}
.nav-link:hover, .nav-link.active { color: var(--brand-primary); }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transition: transform var(--transition);
}
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); box-shadow: 0 0 10px color-mix(in srgb, var(--brand-primary) 65%, transparent); }

/* search field · futuristic glass cockpit */
.search-bar { flex: 1; max-width: 320px; position: relative; }
.search-bar input {
    width: 100%;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-secondary) 72%, transparent);
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.search-bar input::placeholder { color: var(--text-muted); }
.search-bar input:focus {
    border-color: var(--brand-primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-primary) 13%, transparent), 0 0 24px color-mix(in srgb, var(--brand-primary) 24%, transparent);
}

.nav-actions { margin-inline-start: auto; display: flex; align-items: center; gap: 0.5rem; }
.icon-btn {
    position: relative;
    min-width: 42px;
    height: 42px;
    padding: 0 0.6rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: var(--specular);
    transition: var(--transition);
}
.icon-btn:hover {
    border-color: color-mix(in srgb, var(--brand-primary) 45%, transparent);
    color: var(--brand-primary);
    transform: translateY(-2px);
    box-shadow: var(--specular), 0 8px 20px -6px color-mix(in srgb, var(--brand-primary) 35%, transparent);
}
.lang-flag { font-size: 0.95rem; }
.cart-count {
    position: absolute;
    top: -6px;
    inset-inline-end: -6px;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
    display: grid;
    place-items: center;
    box-shadow: 0 0 12px rgba(79, 70, 229, 0.7);
}

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.95rem;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, #4f46e5, #06b6d4, #8b5cf6, #4f46e5);
    background-size: 300% 300%;
    color: #fff;
    box-shadow: var(--specular), 0 8px 22px -8px rgba(79, 70, 229, 0.55);
    position: relative;
    overflow: hidden;
    animation: gradientShift 9s ease infinite;
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -130%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.45), transparent);
    transition: left 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn-primary:hover::after { left: 130%; }
.btn-primary:hover { box-shadow: var(--specular), 0 14px 32px -8px rgba(79, 70, 229, 0.7); transform: translateY(-3px) scale(1.015); }
.btn-outline {
    border-color: var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: var(--specular);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.btn-outline:hover { border-color: var(--brand-primary); color: var(--brand-primary); transform: translateY(-2px); }
.btn-danger { background: var(--danger); color: #fff; box-shadow: 0 8px 22px -8px rgba(239, 68, 68, 0.55); }
.btn-danger:hover { transform: translateY(-2px); }
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.85rem; }
.btn-lg { padding: 0.95rem 1.8rem; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

/* --------------------------------------------------------------------------
   5. Shop hero · aurora mesh command deck
   -------------------------------------------------------------------------- */
.shop-hero {
    background:
        radial-gradient(30rem 20rem at 88% -5%, rgba(6, 182, 212, 0.38), transparent 62%),
        radial-gradient(28rem 20rem at 4% 115%, rgba(139, 92, 246, 0.36), transparent 62%),
        radial-gradient(24rem 16rem at 50% -25%, rgba(79, 70, 229, 0.4), transparent 60%),
        linear-gradient(160deg, #0c1222, #060913 68%, #030712);
    color: #fff;
    padding: 3.5rem 0;
    border-radius: 0 0 32px 32px;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 24px 60px -28px rgba(2, 6, 23, 0.7);
}
.shop-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.16) 1.2px, transparent 1.2px);
    background-size: 24px 24px;
    pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 2.5rem; align-items: center; position: relative; z-index: 1; }
.hero-eyebrow {
    display: inline-block;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.8rem;
    opacity: 0.95;
    margin-bottom: 0.65rem;
    padding: 0.3rem 0.85rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.25);
}
.shop-hero h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); font-weight: 900; letter-spacing: -0.035em; line-height: 1.18; }
.shop-hero p { opacity: 0.95; max-width: 620px; margin-top: 0.65rem; font-size: clamp(0.98rem, 1.5vw, 1.1rem); }
.hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.6rem; }
.btn-white { background: #fff; color: #4f46e5; box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.9), 0 12px 30px -12px rgba(0, 0, 0, 0.5); }
.btn-white:hover { box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.9), 0 18px 40px -12px rgba(0, 0, 0, 0.55); transform: translateY(-3px) scale(1.015); }
.btn-ghost { background: rgba(255, 255, 255, 0.12); color: #fff; border-color: rgba(255, 255, 255, 0.35); box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.2); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.22); transform: translateY(-3px) scale(1.015); }

/* micro-pill chips */
.hero-chips { display: flex; gap: 0.7rem; flex-wrap: wrap; margin-top: 1.6rem; }
.hero-chips div {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.45rem 0.95rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.86rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.22);
    transition: var(--transition);
}
.hero-chips div:hover { background: rgba(255, 255, 255, 0.2); transform: translateY(-2px); }

/* bento stat modules */
.hero-stats { display: grid; gap: 0.85rem; }
.hero-stat {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 1rem 1.2rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.22), 0 12px 30px -14px rgba(2, 6, 23, 0.5);
    transition: var(--transition);
}
.hero-stat:hover { transform: translateY(-2px); background: rgba(255, 255, 255, 0.16); }
.hero-stat strong { display: block; font-size: 1.55rem; font-weight: 900; letter-spacing: -0.03em; }
.hero-stat span { font-size: 0.86rem; opacity: 0.95; }

/* --------------------------------------------------------------------------
   6. Section heads
   -------------------------------------------------------------------------- */
.section-head { display: flex; justify-content: space-between; align-items: baseline; margin: 2.5rem 0 1.25rem; }
.section-head h2 { font-size: clamp(1.35rem, 2.6vw, 1.7rem); font-weight: 900; letter-spacing: -0.02em; }
.section-head a { color: var(--brand-primary); font-weight: 800; font-size: 0.92rem; }
.section-head a:hover { text-shadow: 0 0 16px color-mix(in srgb, var(--brand-primary) 45%, transparent); }
.featured-block { margin-bottom: 2rem; }

/* --------------------------------------------------------------------------
   7. Cockpit toolbar
   -------------------------------------------------------------------------- */
.shop-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    padding: 0.85rem;
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--bg-card) 62%, transparent);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px) saturate(170%);
    -webkit-backdrop-filter: blur(20px) saturate(170%);
    box-shadow: var(--specular), var(--shadow-sm);
}
.toolbar-right { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }
.search-inline input {
    padding: 0.55rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-secondary) 72%, transparent);
    color: var(--text-primary);
    outline: none;
    min-width: 190px;
    transition: var(--transition);
}
.search-inline input::placeholder { color: var(--text-muted); }
.search-inline input:focus {
    border-color: var(--brand-primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-primary) 13%, transparent), 0 0 24px color-mix(in srgb, var(--brand-primary) 24%, transparent);
}
.category-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.chip {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    cursor: pointer;
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text-secondary);
    box-shadow: var(--specular);
    transition: var(--transition);
}
.chip:hover { border-color: color-mix(in srgb, var(--brand-primary) 45%, transparent); color: var(--brand-primary); transform: translateY(-2px); }
.chip.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 0 20px color-mix(in srgb, var(--brand-primary) 5%, transparent), var(--specular);
}
.sort-select {
    padding: 0.55rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    outline: none;
    cursor: pointer;
    box-shadow: var(--specular);
    transition: var(--transition);
}
.sort-select:focus { border-color: var(--brand-primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-primary) 13%, transparent); }
.active-filters { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: color-mix(in srgb, var(--brand-primary) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--brand-primary) 26%, transparent);
    color: var(--brand-primary);
    border-radius: var(--radius-full);
    padding: 0.3rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 700;
}
.filter-pill button { background: none; border: none; cursor: pointer; color: var(--danger); font-size: 1rem; line-height: 1; }
.pagination { display: flex; gap: 0.5rem; justify-content: center; margin: 1rem 0 3rem; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   8. Product grid · luxury tech showcase tiles
   -------------------------------------------------------------------------- */
.product-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    margin-bottom: 2.5rem;
}

/* bento: first tile of a promotional block takes a wide stage */
#featuredGrid .product-card:nth-child(1) { grid-column: span 2; }
@media (max-width: 720px) { #featuredGrid .product-card:nth-child(1) { grid-column: span 1; } }

.product-card {
    position: relative;
    background: var(--bg-card);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--specular), var(--shadow-md);
    transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
    display: flex;
    flex-direction: column;
    animation: fadeUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.product-card:nth-child(1) { animation-delay: 0.04s; }
.product-card:nth-child(2) { animation-delay: 0.08s; }
.product-card:nth-child(3) { animation-delay: 0.12s; }
.product-card:nth-child(4) { animation-delay: 0.16s; }
.product-card:nth-child(5) { animation-delay: 0.2s; }
.product-card:nth-child(6) { animation-delay: 0.24s; }
.product-card:nth-child(7) { animation-delay: 0.28s; }
.product-card:nth-child(8) { animation-delay: 0.32s; }

.product-card:hover {
    transform: translateY(-6px) scale(1.015);
    box-shadow: var(--specular), var(--shadow-lg), 0 0 0 1px color-mix(in srgb, var(--brand-primary) 15%, transparent);
    border-color: color-mix(in srgb, var(--brand-primary) 3%, transparent);
}

.product-media { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-tertiary); display: block; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.product-card:hover .product-media img { transform: scale(1.07); }

/* interactive sheen reflection */
.product-media::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(115deg, transparent 34%, rgba(255, 255, 255, 0.26) 50%, transparent 66%);
    opacity: 0;
    transform: translateX(-115%);
    transition: opacity 0.4s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.product-card:hover .product-media::after { opacity: 1; transform: translateX(115%); }

.badge-discount {
    position: absolute;
    top: 0.75rem;
    inset-inline-start: 0.75rem;
    z-index: 2;
    background: var(--danger);
    color: #fff;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.74rem;
    font-weight: 800;
    box-shadow: 0 0 16px rgba(239, 68, 68, 0.55);
}
.badge-featured {
    position: absolute;
    top: 0.75rem;
    inset-inline-end: 0.75rem;
    z-index: 2;
    background: var(--gradient-primary);
    color: #fff;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 800;
    box-shadow: 0 0 16px color-mix(in srgb, var(--brand-primary) 55%, transparent);
}
.badge-out {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: rgba(3, 7, 18, 0.66);
    backdrop-filter: blur(3px);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
    letter-spacing: 0.06em;
    font-size: 0.9rem;
}
.wish-btn {
    position: absolute;
    top: calc(75% - 34px);
    inset-inline-end: 0.75rem;
    z-index: 3;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-card) 92%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    display: grid;
    place-items: center;
    box-shadow: var(--specular), var(--shadow-sm);
    transition: var(--transition);
}
.wish-btn:hover { color: var(--danger); border-color: var(--danger); transform: scale(1.1); }
.wish-btn.active { background: var(--danger); border-color: var(--danger); color: #fff; box-shadow: 0 0 18px rgba(239, 68, 68, 0.6); }

.product-body { padding: 1.1rem; display: flex; flex-direction: column; flex: 1; position: relative; z-index: 2; }
.product-cat { font-size: 0.7rem; color: var(--brand-primary); font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; }
.product-title { font-size: 1rem; font-weight: 800; margin: 0.3rem 0 0.5rem; letter-spacing: -0.01em; line-height: 1.4; }
.product-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.rating-row { margin: 0.25rem 0 0.4rem; font-size: 0.82rem; }
.stars { color: #cbd5e1; letter-spacing: 1px; }
.stars .on { color: #f59e0b; text-shadow: 0 0 10px rgba(245, 158, 11, 0.5); }
.rating-count { color: var(--text-muted); font-size: 0.78rem; margin-inline-start: 0.35rem; }
.rating-empty { color: var(--text-muted); font-size: 0.78rem; }

/* glowing price indicator */
.price-row { display: flex; align-items: center; gap: 0.5rem; margin: 0.75rem 0; }
.price-now {
    font-size: 1.3rem;
    font-weight: 900;
    color: transparent;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 0 0 26px color-mix(in srgb, var(--brand-primary) 3%, transparent);
    letter-spacing: -0.02em;
}
.price-old { font-size: 0.9rem; color: var(--text-muted); text-decoration: line-through; }
.stock-tag { font-size: 0.78rem; color: var(--success); font-weight: 700; }
.stock-tag.low { color: var(--warning); }
.stock-tag.none { color: var(--danger); }
.product-actions { display: flex; gap: 0.5rem; margin-top: auto; }

/* --------------------------------------------------------------------------
   9. Product detail
   -------------------------------------------------------------------------- */
.breadcrumb { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; padding: 1.5rem 0 0; font-size: 0.85rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-secondary); font-weight: 700; }
.breadcrumb a:hover { color: var(--brand-primary); }
.wish-toggle.active { background: var(--danger); border-color: var(--danger); color: #fff; box-shadow: 0 0 18px rgba(239, 68, 68, 0.55); }
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; padding: 2.5rem 0; }

.detail-media {
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--specular), var(--shadow-lg);
    background: var(--bg-card);
}
.detail-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.detail-info h1 { font-size: clamp(1.6rem, 3.4vw, 2.1rem); font-weight: 900; margin-bottom: 0.5rem; letter-spacing: -0.03em; line-height: 1.25; }
.detail-price { display: flex; align-items: baseline; gap: 0.75rem; margin: 1rem 0; flex-wrap: wrap; }
.detail-price .now {
    font-size: clamp(1.7rem, 3.6vw, 2.2rem);
    font-weight: 900;
    color: transparent;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    letter-spacing: -0.03em;
}
.detail-price .old { font-size: 1.1rem; color: var(--text-muted); text-decoration: line-through; }
.detail-desc { color: var(--text-secondary); margin-bottom: 1.5rem; line-height: 1.8; }

.qty-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
    background: var(--bg-card);
    box-shadow: var(--specular), var(--shadow-sm);
}
.qty-control button { width: 44px; height: 44px; border: none; background: transparent; cursor: pointer; font-size: 1.25rem; color: var(--text-primary); transition: var(--transition); }
.qty-control button:hover { color: var(--brand-primary); background: color-mix(in srgb, var(--brand-primary) 9%, transparent); }
.qty-control input { width: 56px; height: 44px; text-align: center; border: none; background: transparent; color: var(--text-primary); font-weight: 800; outline: none; }
.detail-buy { display: flex; gap: 0.85rem; align-items: center; flex-wrap: wrap; margin-top: 1.5rem; }
.spec-list { margin-top: 2rem; border-top: 1px solid var(--border-color); padding-top: 1rem; }
.spec-list div { display: flex; justify-content: space-between; padding: 0.5rem 0; border-bottom: 1px dashed var(--border-color); font-size: 0.92rem; }
.spec-list span:first-child { color: var(--text-muted); }

/* --------------------------------------------------------------------------
   10. Cart / Checkout
   -------------------------------------------------------------------------- */
.page-title { font-size: clamp(1.6rem, 3.4vw, 2.1rem); font-weight: 900; margin: 2rem 0 1.5rem; letter-spacing: -0.03em; }
.coupon-row { display: flex; gap: 0.5rem; margin: 1rem 0; }
.coupon-row input {
    flex: 1;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-secondary) 72%, transparent);
    color: var(--text-primary);
    outline: none;
    text-transform: uppercase;
    transition: var(--transition);
}
.coupon-row input:focus { border-color: var(--brand-primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-primary) 13%, transparent); }
.applied-coupon {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    background: color-mix(in srgb, var(--success) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--success) 35%, transparent);
    color: var(--success);
    border-radius: var(--radius-md);
    padding: 0.6rem 0.9rem;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}
.applied-coupon button { background: none; border: none; color: inherit; cursor: pointer; font-size: 1.05rem; }

/* --------------------------------------------------------------------------
   11. Order tracking timeline
   -------------------------------------------------------------------------- */
.timeline { display: flex; gap: 0; margin: 2rem 0; flex-wrap: wrap; }
.timeline-step { flex: 1; min-width: 110px; text-align: center; position: relative; }
.timeline-dot {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    margin: 0 auto 0.6rem;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    display: grid;
    place-items: center;
    font-weight: 800;
    color: var(--text-muted);
    transition: var(--transition);
}
.timeline-step.done .timeline-dot { background: var(--success); border-color: var(--success); color: #fff; box-shadow: 0 0 18px rgba(16, 185, 129, 0.5); }
.timeline-step.current .timeline-dot {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--brand-primary) 18%, transparent), 0 0 24px color-mix(in srgb, var(--brand-primary) 45%, transparent);
}
.timeline-step span { font-size: 0.82rem; font-weight: 700; color: var(--text-secondary); }
.timeline-step::before {
    content: '';
    position: absolute;
    top: 22px;
    inset-inline-start: 50%;
    width: 100%;
    height: 2px;
    background: var(--border-color);
    z-index: -1;
}
.timeline-step:last-child::before { display: none; }
.timeline-step.done::before { background: var(--success); }

/* --------------------------------------------------------------------------
   12. Reviews
   -------------------------------------------------------------------------- */
.reviews-section { margin: 3rem 0; }
.reviews-layout { display: grid; grid-template-columns: 1fr 360px; gap: 2rem; align-items: start; }
.review-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin-bottom: 0.75rem;
    box-shadow: var(--specular), var(--shadow-sm);
    transition: var(--transition);
}
.review-card:hover { box-shadow: var(--specular), var(--shadow-md); transform: translateY(-2px); }
.review-card header { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.review-card strong { font-size: 0.95rem; }
.review-card time { color: var(--text-muted); font-size: 0.78rem; }
.review-card p { margin-top: 0.5rem; color: var(--text-secondary); font-size: 0.92rem; }
.rating-input { display: flex; flex-direction: row-reverse; justify-content: flex-end; gap: 0.25rem; }
.rating-input input { display: none; }
.rating-input label { font-size: 1.6rem; color: #cbd5e1; cursor: pointer; transition: var(--transition); }
.rating-input label:hover,
.rating-input label:hover ~ label,
.rating-input input:checked ~ label { color: #f59e0b; text-shadow: 0 0 12px rgba(245, 158, 11, 0.5); }

/* --------------------------------------------------------------------------
   13. Generic form pages
   -------------------------------------------------------------------------- */
.narrow-wrap { max-width: 640px; margin: 3rem auto; }

.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 2rem; align-items: start; margin-bottom: 3rem; }
.cart-items { display: flex; flex-direction: column; gap: 1rem; }
.cart-item {
    display: grid;
    grid-template-columns: 90px 1fr auto;
    gap: 1rem;
    align-items: center;
    background: var(--bg-card);
    backdrop-filter: blur(18px) saturate(170%);
    -webkit-backdrop-filter: blur(18px) saturate(170%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--specular), var(--shadow-sm);
    transition: var(--transition);
}
.cart-item:hover { box-shadow: var(--specular), var(--shadow-md); transform: translateY(-2px); }
.cart-item img { width: 90px; height: 90px; object-fit: cover; border-radius: var(--radius-md); }
.cart-item h4 { font-size: 1rem; margin-bottom: 0.25rem; }
.cart-item .item-price { color: var(--brand-primary); font-weight: 800; }
.cart-item .remove-btn { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 0.85rem; }
.summary-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    position: sticky;
    top: 90px;
    box-shadow: var(--specular), var(--shadow-lg);
}
.summary-card h3 { margin-bottom: 1rem; font-size: 1.15rem; }
.summary-row { display: flex; justify-content: space-between; padding: 0.55rem 0; color: var(--text-secondary); }
.summary-row.total { border-top: 2px solid var(--border-color); margin-top: 0.5rem; padding-top: 0.9rem; font-size: 1.3rem; font-weight: 900; color: var(--text-primary); letter-spacing: -0.02em; }
.summary-row.discount { color: var(--success); font-weight: 700; }

.checkout-grid { display: grid; grid-template-columns: 1fr 380px; gap: 2rem; align-items: start; margin-bottom: 3rem; }
.form-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--specular), var(--shadow-lg);
}
.form-card h3 { margin-bottom: 1rem; font-size: 1.2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.4rem; font-weight: 800; font-size: 0.88rem; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-secondary) 72%, transparent);
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--brand-primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-primary) 13%, transparent), 0 0 22px color-mix(in srgb, var(--brand-primary) 22%, transparent);
}
.payment-options { display: flex; flex-direction: column; gap: 0.75rem; }
.payment-option {
    display: flex;
    gap: 0.9rem;
    align-items: flex-start;
    padding: 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    background: color-mix(in srgb, var(--bg-secondary) 50%, transparent);
    transition: var(--transition);
}
.payment-option:hover { border-color: var(--brand-secondary); transform: translateY(-2px); }
.payment-option.selected {
    border-color: var(--brand-primary);
    background: color-mix(in srgb, var(--brand-primary) 7%, transparent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-primary) 12%, transparent), 0 0 22px color-mix(in srgb, var(--brand-primary) 18%, transparent);
}
.payment-option input { margin-top: 0.35rem; accent-color: var(--brand-primary); }
.payment-option .pay-icon { font-size: 1.6rem; }
.payment-option strong { display: block; }
.payment-option small { color: var(--text-muted); }
.bank-box { margin-top: 0.75rem; background: var(--bg-tertiary); border-radius: var(--radius-md); padding: 0.75rem 1rem; font-size: 0.88rem; }
.bank-box div { display: flex; justify-content: space-between; padding: 0.25rem 0; }
.empty-state { text-align: center; padding: 4rem 1rem; color: var(--text-muted); }
.empty-state .big { font-size: 3rem; margin-bottom: 1rem; filter: drop-shadow(0 0 20px color-mix(in srgb, var(--brand-primary) 35%, transparent)); }
.empty-state h2 { color: var(--text-primary); margin-bottom: 0.5rem; }

/* --------------------------------------------------------------------------
   14. Alerts
   -------------------------------------------------------------------------- */
.alert { padding: 0.85rem 1.1rem; border-radius: var(--radius-md); margin-bottom: 1rem; font-weight: 700; font-size: 0.92rem; }
.alert-success { background: color-mix(in srgb, var(--success) 13%, transparent); color: var(--success); border: 1px solid color-mix(in srgb, var(--success) 35%, transparent); }
.alert-error { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent); }
.alert-info { background: color-mix(in srgb, var(--brand-primary) 10%, transparent); color: var(--brand-primary); border: 1px solid color-mix(in srgb, var(--brand-primary) 30%, transparent); }

/* --------------------------------------------------------------------------
   15. Success page
   -------------------------------------------------------------------------- */
.success-wrap { max-width: 720px; margin: 3rem auto; text-align: center; }
.success-icon {
    width: 92px;
    height: 92px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 2.4rem;
    margin: 0 auto 1.5rem;
    box-shadow: 0 0 40px color-mix(in srgb, var(--brand-primary) 55%, transparent);
    animation: glowPulse 3s ease-in-out infinite;
}
.order-box {
    background: var(--bg-card);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: start;
    margin-top: 2rem;
    box-shadow: var(--specular), var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   16. Footer
   -------------------------------------------------------------------------- */
.store-footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1.5rem;
    margin-top: 3rem;
    background: color-mix(in srgb, var(--bg-secondary) 76%, transparent);
    backdrop-filter: blur(24px) saturate(160%);
    -webkit-backdrop-filter: blur(24px) saturate(160%);
}
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-grid h4 { font-size: 0.95rem; margin-bottom: 0.75rem; font-weight: 800; }
.footer-grid a, .footer-grid span { display: block; color: var(--text-muted); font-size: 0.88rem; padding: 0.18rem 0; }
.footer-grid a:hover { color: var(--brand-primary); }
.footer-brand { display: flex; align-items: center; gap: 0.55rem; font-weight: 900; margin-bottom: 0.75rem; font-size: 1.05rem; }
.footer-brand .logo-badge {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 0 18px color-mix(in srgb, var(--brand-primary) 45%, transparent);
}
.footer-grid p { color: var(--text-muted); font-size: 0.88rem; }
.pay-badges { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.pay-badges span {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.6rem;
    font-size: 0.78rem;
    font-weight: 700;
    box-shadow: var(--specular);
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.footer-bottom a { color: var(--text-muted); font-weight: 700; }
.footer-bottom a:hover { color: var(--brand-primary); }
.footer-bottom-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   17. Toast
   -------------------------------------------------------------------------- */
.toast {
    position: fixed;
    inset-inline-start: 50%;
    transform: translateX(-50%) translateY(24px);
    bottom: 30px;
    background: color-mix(in srgb, var(--text-primary) 92%, transparent);
    color: var(--bg-primary);
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    box-shadow: var(--specular), var(--shadow-lg);
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
}
.toast.show { opacity: 1; bottom: 40px; transform: translateX(-50%) translateY(0); }

/* --------------------------------------------------------------------------
   18. Skeleton
   -------------------------------------------------------------------------- */
.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, color-mix(in srgb, var(--brand-primary) 14%, var(--bg-tertiary)) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: sk 1.3s infinite;
    border-radius: var(--radius-lg);
    height: 320px;
    box-shadow: var(--specular);
}
@keyframes sk { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* --------------------------------------------------------------------------
   19. Product detail · gallery, specs, trust, ratings
   -------------------------------------------------------------------------- */
.gallery-main { position: relative; }
.gallery-main .badge-discount,
.gallery-main .badge-out { position: absolute; top: 14px; inset-inline-start: 14px; }
.gallery-thumbs { display: flex; gap: 0.6rem; margin-top: 0.75rem; overflow-x: auto; padding-bottom: 0.25rem; }
.gallery-thumb {
    width: 82px;
    height: 82px;
    flex-shrink: 0;
    padding: 0;
    cursor: pointer;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    overflow: hidden;
    transition: var(--transition);
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb:hover { border-color: var(--brand-secondary); transform: translateY(-2px); }
.gallery-thumb.active {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-primary) 16%, transparent), 0 0 20px color-mix(in srgb, var(--brand-primary) 3%, transparent);
}
.gallery-main img { cursor: zoom-in; }
.gallery-zoom-hint {
    position: absolute; top: 12px; inset-inline-end: 12px; z-index: 4;
    width: 38px; height: 38px; border-radius: 50%;
    background: rgba(255,255,255,.92); color: #1a1a2e;
    display: grid; place-items: center; pointer-events: none;
    box-shadow: 0 2px 10px rgba(0,0,0,.18);
}

/* Lightbox — عرض الصور بحجمها الكامل */
.lightbox {
    position: fixed; inset: 0; z-index: 3000;
    background: rgba(6, 7, 12, 0.94);
    display: flex; align-items: center; justify-content: center;
    padding: clamp(0.5rem, 3vw, 3rem);
}
.lightbox[hidden] { display: none; }
.lightbox-img {
    max-width: 90vw; max-height: 84vh; object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 24px 70px rgba(0,0,0,.55);
    background: #0b0b10;
}
.lightbox-close,
.lightbox-nav {
    position: absolute; border: 0; cursor: pointer;
    width: 48px; height: 48px; border-radius: 50%;
    background: rgba(255,255,255,.12); color: #fff;
    font-size: 1.7rem; line-height: 1; display: grid; place-items: center;
    transition: background .2s ease, transform .2s ease;
}
.lightbox-close:hover,
.lightbox-nav:hover { background: rgba(255,255,255,.26); }
.lightbox-close { top: 1.2rem; inset-inline-end: 1.2rem; }
.lightbox-nav { top: 50%; transform: translateY(-50%); }
.lightbox-nav:hover { transform: translateY(-50%) scale(1.08); }
.lightbox-prev { inset-inline-start: 1rem; }
.lightbox-next { inset-inline-end: 1rem; }
.lightbox-counter {
    position: absolute; bottom: 1.2rem; left: 50%; transform: translateX(-50%);
    color: rgba(255,255,255,.9); font-size: .88rem; font-weight: 700;
    background: rgba(255,255,255,.1); padding: .35rem 1.1rem; border-radius: var(--radius-full);
}

.detail-meta-row { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 0.5rem; }
.brand-chip {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
}
.view-count { color: var(--text-muted); font-size: 0.78rem; margin-inline-start: 0.6rem; }
.save-badge {
    background: color-mix(in srgb, var(--success) 14%, transparent);
    color: var(--success);
    font-size: 0.82rem;
    font-weight: 700;
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-full);
    border: 1px solid color-mix(in srgb, var(--success) 32%, transparent);
}

.trust-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}
.trust-row > div {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.15rem;
    background: color-mix(in srgb, var(--bg-secondary) 60%, transparent);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.9rem 0.5rem;
    box-shadow: var(--specular);
    transition: var(--transition);
}
.trust-row > div:hover { transform: translateY(-3px) scale(1.02); box-shadow: var(--specular), var(--shadow-md); }
.trust-row .ti { font-size: 1.4rem; }
.trust-row b { font-size: 0.85rem; }
.trust-row small { color: var(--text-muted); font-size: 0.74rem; }

.detail-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 3rem; }
.detail-block h2 { font-size: 1.25rem; margin-bottom: 1rem; letter-spacing: -0.01em; }
.spec-table {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--specular), var(--shadow-sm);
}
.spec-table > div { display: flex; justify-content: space-between; gap: 1rem; padding: 0.7rem 1.1rem; font-size: 0.92rem; }
.spec-table > div:nth-child(odd) { background: color-mix(in srgb, var(--bg-secondary) 55%, transparent); }
.spec-table > div > span:first-child { color: var(--text-muted); font-weight: 600; }
.spec-table > div > span:last-child { font-weight: 700; text-align: end; }
.detail-long { color: var(--text-secondary); line-height: 1.9; }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1rem; }
.tag-chip {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.25rem 0.7rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.tag-chip:hover { color: var(--brand-primary); border-color: color-mix(in srgb, var(--brand-primary) 40%, transparent); transform: translateY(-2px); }

.rating-summary {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 1.5rem;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--specular), var(--shadow-sm);
}
.rating-score { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 0.2rem; }
.rating-score strong { font-size: 2.6rem; line-height: 1; color: var(--brand-primary); text-shadow: 0 0 24px color-mix(in srgb, var(--brand-primary) 35%, transparent); }
.rating-score small { color: var(--text-muted); font-size: 0.8rem; }
.rating-bars { display: flex; flex-direction: column; gap: 0.4rem; justify-content: center; }
.bar-row { display: grid; grid-template-columns: 42px 1fr 30px; align-items: center; gap: 0.6rem; font-size: 0.8rem; color: var(--text-secondary); }
.bar-row .bar { height: 8px; background: var(--bg-tertiary); border-radius: var(--radius-full); overflow: hidden; box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.12); }
.bar-row .bar i { display: block; height: 100%; background: linear-gradient(90deg, #f59e0b, #fbbf24); border-radius: var(--radius-full); transition: width 0.5s ease; box-shadow: 0 0 10px rgba(245, 158, 11, 0.5); }

/* --------------------------------------------------------------------------
   20. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1000px) {
    .hero-inner { grid-template-columns: 1fr; gap: 1.75rem; }
    .hero-stats { grid-template-columns: repeat(3, 1fr); display: grid; }
    .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; }
    .reviews-layout { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1024px) {
    .hamburger-btn { display: flex; }
    .navbar-container,
    .navbar-header.scrolled .navbar-container { height: auto; min-height: 68px; padding-block: 0.5rem; flex-wrap: wrap; }
    .search-bar { order: 5; max-width: none; flex-basis: 100%; margin-bottom: 0.35rem; }
    .store-nav {
        position: absolute;
        top: 100%;
        inset-inline: 0;
        flex-direction: column;
        gap: 0;
        background: color-mix(in srgb, var(--bg-glass) 96%, transparent);
        backdrop-filter: blur(24px) saturate(190%);
        -webkit-backdrop-filter: blur(24px) saturate(190%);
        border-bottom: 1px solid var(--border-color);
        padding: 0.5rem 1.25rem 1rem;
        box-shadow: var(--specular), var(--shadow-lg);
        transform: translateY(-140%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .store-nav.open { transform: translateY(0); }
    .nav-list { flex-direction: column; gap: 0; }
    .nav-link { display: block; padding: 0.7rem 0; border-bottom: 1px solid var(--border-light); }
    .nav-link::after { display: none; }
}
@media (max-width: 900px) {
    .product-detail, .cart-layout, .checkout-grid { grid-template-columns: 1fr; }
    .summary-card { position: static; }
}
@media (max-width: 800px) {
    .detail-columns { grid-template-columns: 1fr; }
    .trust-row { grid-template-columns: 1fr; }
    .rating-summary { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
    .form-row { grid-template-columns: 1fr; }
    .search-bar { display: none; }
    .search-inline { display: none; }
    .cart-item { grid-template-columns: 70px 1fr; }
    .cart-item img { width: 70px; height: 70px; }
    .hero-stats { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .timeline-step { min-width: 80px; }
    .timeline-dot { width: 34px; height: 34px; font-size: 0.85rem; }
    .detail-buy .btn { flex: 1 1 100%; }
}

/* --------------------------------------------------------------------------
   21. Keyframes
   -------------------------------------------------------------------------- */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes shimmer {
    from { background-position: -200% 0; }
    to { background-position: 200% 0; }
}
@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 18px rgba(79, 70, 229, 0.3); }
    50% { box-shadow: 0 0 30px rgba(6, 182, 212, 0.5); }
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}