/* AKGadgets design system — Liquid Glass + Spatial UI, applied with restraint.
   Built on Bootstrap 5 tokens. Brand palette is white / black / purple, matching the AKGadgets logo. */

:root {
    --akg-navy: #0a0a0f;
    --akg-navy-soft: #17151c;
    --akg-blue: #6d28d9;
    --akg-blue-dark: #4c1d95;
    --akg-amber: #8b5cf6;
    --akg-amber-dark: #5b21b6;
    --akg-success: #1aa971;
    --akg-danger: #e14b4b;
    --akg-ink: #0a0a0f;
    --akg-muted: #66707d;
    --akg-border: #e4e2ec;
    --akg-bg: #f8f7fb;

    /* Liquid glass tokens */
    --glass-blur: 18px;
    --glass-bg: rgba(255, 255, 255, 0.62);
    --glass-bg-strong: rgba(255, 255, 255, 0.82);
    --glass-border: rgba(255, 255, 255, 0.55);
    --glass-bg-dark: rgba(11, 18, 32, 0.55);
    --glass-border-dark: rgba(255, 255, 255, 0.12);
    --glass-shadow: 0 12px 40px rgba(16, 24, 40, 0.10);
    --glass-shadow-lg: 0 24px 64px rgba(9, 14, 26, 0.28);
    --radius-glass: 1.25rem;

    --bs-body-font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --bs-body-bg: var(--akg-bg);
    --bs-body-color: var(--akg-ink);
    --bs-link-color: var(--akg-blue);
    --bs-primary: var(--akg-blue);
    --bs-border-radius: 0.75rem;
    --bs-border-radius-lg: 1rem;
    --bs-border-radius-sm: 0.5rem;
}

body {
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.skip-link {
    position: absolute; top: -50px; left: 0; background: var(--akg-navy); color: #fff;
    padding: 0.5rem 1rem; z-index: 2000; transition: top 0.2s;
}
.skip-link:focus { top: 0; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Liquid glass surface utilities ---------- */
.glass {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
    backdrop-filter: blur(var(--glass-blur)) saturate(140%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}
.glass-strong { background: var(--glass-bg-strong); }
.glass-dark {
    background: var(--glass-bg-dark);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    border: 1px solid var(--glass-border-dark);
    color: #fff;
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .glass { background: rgba(255, 255, 255, 0.94); }
    .glass-dark { background: rgba(11, 18, 32, 0.92); }
}

.surface-panel {
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
    backdrop-filter: blur(var(--glass-blur)) saturate(140%);
    border: 1px solid rgba(228, 231, 236, 0.8);
    border-radius: var(--radius-glass);
    box-shadow: var(--glass-shadow);
}

/* ---------- Ambient background ---------- */
.ambient-bg {
    position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden;
}
.ambient-bg::before, .ambient-bg::after {
    content: ''; position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.35;
}
.ambient-bg::before { top: -10%; right: -5%; width: 42vw; height: 42vw; background: radial-gradient(circle, var(--akg-blue), transparent 70%); }
.ambient-bg::after { bottom: -15%; left: -8%; width: 38vw; height: 38vw; background: radial-gradient(circle, var(--akg-amber), transparent 70%); opacity: 0.22; }

/* ---------- Header ---------- */
.topbar { background: var(--akg-navy); color: #d9d3ea; }
.topbar-link { color: #d9d3ea; text-decoration: none; }
.topbar-link:hover { color: #fff; }

.site-header {
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
    backdrop-filter: blur(var(--glass-blur)) saturate(150%);
    border-bottom: 1px solid rgba(228, 231, 236, 0.7);
    transition: box-shadow 0.25s ease;
}
.site-header.is-scrolled { box-shadow: 0 8px 30px rgba(16, 24, 40, 0.08); }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .site-header { background: #fff; }
}

.brand-logo { font-weight: 800; font-size: 1.4rem; color: var(--akg-navy); letter-spacing: -0.02em; text-decoration: none; }

.nav-link { color: var(--akg-ink); font-weight: 500; position: relative; }
.nav-link:hover { color: var(--akg-blue); }

.mega-menu {
    border: 1px solid rgba(228, 231, 236, 0.8);
    border-radius: var(--radius-glass);
    box-shadow: var(--glass-shadow-lg);
    padding: 1.25rem;
}
.mega-menu-row { min-width: 0; }
@media (min-width: 992px) { .mega-menu-row { min-width: 480px; } }
.mega-menu .mega-col-title { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--akg-muted); font-weight: 700; margin-bottom: 0.5rem; }
.mega-menu a.dropdown-item { border-radius: 0.5rem; padding: 0.4rem 0.6rem; }
.mega-menu a.dropdown-item:hover { background: rgba(109, 40, 217, 0.08); color: var(--akg-blue-dark); }

.cart-badge, .cart-count-badge {
    position: absolute; top: -2px; right: -8px; background: var(--akg-amber); color: #fff;
    font-size: 0.65rem; font-weight: 700; border-radius: 999px; padding: 0.05rem 0.4rem; line-height: 1.3;
}

/* ---------- Search ---------- */
.search-form { position: relative; }
.search-form .form-control {
    border-radius: 999px; padding-left: 1.1rem; border: 1px solid var(--akg-border); background: rgba(247, 248, 251, 0.9);
}
.search-form .btn { border-radius: 999px; }

/* ---------- Buttons ---------- */
.btn-brand {
    background: linear-gradient(135deg, var(--akg-amber), var(--akg-amber-dark)); border-color: var(--akg-amber); color: #fff; font-weight: 600;
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.28); transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-brand:hover, .btn-brand:focus { background: var(--akg-amber-dark); border-color: var(--akg-amber-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 10px 26px rgba(109, 40, 217, 0.36); }

.btn-navy { background: var(--akg-navy); border-color: var(--akg-navy); color: #fff; font-weight: 600; }
.btn-navy:hover { background: #050a14; border-color: #050a14; color: #fff; }

.btn-glass {
    background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.35); color: #fff; font-weight: 600;
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.btn-glass:hover { background: rgba(255, 255, 255, 0.24); color: #fff; }

.btn-whatsapp {
    background: #25D366; border-color: #25D366; color: #fff; font-weight: 600;
}
.btn-whatsapp:hover { background: #1ebc59; border-color: #1ebc59; color: #fff; }

/* ---------- Hero (spatial) ---------- */
.hero {
    position: relative;
    background:
        radial-gradient(circle at 15% 20%, rgba(139, 92, 246, 0.22), transparent 45%),
        radial-gradient(circle at 85% 15%, rgba(109, 40, 217, 0.35), transparent 50%),
        linear-gradient(160deg, var(--akg-navy) 0%, var(--akg-navy-soft) 100%);
    color: #fff; border-radius: 0 0 2.5rem 2.5rem; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; inset: 0; opacity: 0.5; pointer-events: none;
    background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
    background-size: 22px 22px; mask-image: radial-gradient(circle at 70% 30%, black, transparent 70%);
}
.hero h1 { font-weight: 800; letter-spacing: -0.02em; }
.hero .lead { color: #d9d3ea; }

.trust-badge {
    background: rgba(255, 255, 255, 0.10); border: 1px solid rgba(255, 255, 255, 0.18); border-radius: 999px;
    padding: 0.4rem 1rem; font-size: 0.85rem; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}

.hero-art-wrap { position: relative; perspective: 1200px; }
.hero-art {
    animation: hero-float 5s ease-in-out infinite;
    filter: drop-shadow(0 30px 45px rgba(0, 0, 0, 0.45));
    transform-style: preserve-3d;
}
.hero-art-shadow {
    position: absolute; left: 50%; bottom: -0.5rem; width: 62%; height: 2rem; transform: translateX(-50%);
    background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.45), transparent 72%);
    animation: hero-shadow 5s ease-in-out infinite;
}
@keyframes hero-float {
    0%, 100% { transform: translateY(0) rotate(-1.5deg); }
    50% { transform: translateY(-16px) rotate(1.5deg); }
}
@keyframes hero-shadow {
    0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.55; }
    50% { transform: translateX(-50%) scale(0.85); opacity: 0.35; }
}
@media (prefers-reduced-motion: reduce) {
    .hero-art, .hero-art-shadow { animation: none; }
}

.hero-glass-card {
    background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.18); border-radius: var(--radius-glass);
    -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); box-shadow: var(--glass-shadow-lg);
}

/* ---------- Product Card (spatial + glass) ---------- */
.product-card {
    background: var(--glass-bg-strong); border: 1px solid rgba(228, 231, 236, 0.8); border-radius: var(--radius-glass);
    overflow: hidden; transition: transform 0.25s ease, box-shadow 0.25s ease; height: 100%;
    transform: perspective(800px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
    will-change: transform;
}
.product-card:hover { box-shadow: 0 20px 40px rgba(16, 24, 40, 0.14); }
@media (prefers-reduced-motion: reduce) { .product-card { transform: none !important; } }

.product-card .card-img-wrap {
    position: relative; background: radial-gradient(circle at 50% 30%, #eef1f7, #e3e7ef 75%);
    aspect-ratio: 1/1; display: flex; align-items: center; justify-content: center; padding: 1.25rem; overflow: hidden;
}
.product-card .card-img-wrap::after {
    content: ''; position: absolute; z-index: 0; left: 50%; bottom: 10%; width: 55%; height: 12%; transform: translateX(-50%);
    background: radial-gradient(ellipse at center, rgba(16, 24, 40, 0.18), transparent 75%);
}
.product-card .card-img-wrap img { max-height: 100%; max-width: 100%; object-fit: contain; position: relative; z-index: 1; transition: transform 0.25s ease; }
.product-card:hover .card-img-wrap img { transform: translateY(-4px) scale(1.04); }
.product-card .card-img-wrap .badge { z-index: 2; }

.product-card .price { font-weight: 800; color: var(--akg-navy); font-size: 1.1rem; }
.product-card .brand-tag { color: var(--akg-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }

.badge-condition { background: var(--akg-blue); }
.badge-out-of-stock { background: var(--akg-danger); }
.badge-in-stock { background: var(--akg-success); }
.badge-new-arrival { background: linear-gradient(135deg, var(--akg-amber), var(--akg-amber-dark)); }

/* ---------- Sections ---------- */
.section-title { font-weight: 800; letter-spacing: -0.01em; }
.section-eyebrow { color: var(--akg-blue); font-weight: 700; text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.08em; }

.filter-panel { background: var(--glass-bg-strong); border: 1px solid rgba(228, 231, 236, 0.8); border-radius: var(--radius-glass);
    -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur)); box-shadow: var(--glass-shadow); }

/* ---------- Status badges ---------- */
.status-pill { border-radius: 999px; padding: 0.3rem 0.8rem; font-weight: 600; font-size: 0.8rem; display: inline-block; }
.status-pending { background: #fff4e5; color: #b5560a; }
.status-confirmed, .status-processing { background: #e7f0ff; color: var(--akg-blue-dark); }
.status-readyfordelivery, .status-outfordelivery { background: #eef2ff; color: #4338ca; }
.status-delivered { background: #e6f7ef; color: var(--akg-success); }
.status-cancelled, .status-refunded, .status-returned { background: #fdeaea; color: var(--akg-danger); }

/* ---------- Timeline ---------- */
.order-timeline { list-style: none; padding: 0; margin: 0; }
.order-timeline li { position: relative; padding-left: 2rem; padding-bottom: 1.5rem; border-left: 2px solid var(--akg-border); margin-left: 0.6rem; }
.order-timeline li:last-child { border-color: transparent; padding-bottom: 0; }
.order-timeline li::before {
    content: ''; position: absolute; left: -0.6rem; top: 0; width: 1.1rem; height: 1.1rem; border-radius: 50%;
    background: #fff; border: 2px solid var(--akg-border);
}
.order-timeline li.is-complete::before { background: var(--akg-success); border-color: var(--akg-success); }
.order-timeline li.is-current::before { background: var(--akg-blue); border-color: var(--akg-blue); box-shadow: 0 0 0 4px rgba(47,111,237,0.2); }

/* ---------- Footer ---------- */
.site-footer { position: relative; background: var(--akg-navy); color: #d9d3ea; }
.site-footer::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(109, 40, 217, 0.6), rgba(139, 92, 246, 0.6), transparent);
}
.site-footer .footer-heading { color: #fff; font-weight: 700; margin-bottom: 1rem; }
.site-footer .footer-links a { color: #d9d3ea; text-decoration: none; line-height: 2; }
.site-footer .footer-links a:hover { color: #fff; }
.site-footer .footer-links li { line-height: 1.8; margin-bottom: 0.35rem; }
.site-footer .social-btn {
    width: 2.25rem; height: 2.25rem; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.12); color: #d9d3ea;
    transition: background 0.2s ease, color 0.2s ease;
}
.site-footer .social-btn:hover { background: rgba(255, 255, 255, 0.16); color: #fff; }

/* ---------- Dashboard ---------- */
.stat-card { background: #fff; border: 1px solid var(--akg-border); border-radius: var(--bs-border-radius-lg); padding: 1.25rem; height: 100%; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 800; color: var(--akg-navy); }
.stat-card .stat-label { color: var(--akg-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
.admin-sidebar { background: var(--akg-navy); min-height: 100%; }
.admin-sidebar a { color: #d9d3ea; text-decoration: none; display: block; padding: 0.6rem 1rem; border-radius: 0.5rem; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(255,255,255,0.08); color: #fff; }

/* ---------- Skeleton loading (slow-network resilience) ---------- */
/* Any element wrapping an <img> with class="img-skeleton" shows an animated shimmer
   placeholder until site.js detects the image has loaded (or failed), then fades it out.
   Pure CSS + a tiny JS toggle — no layout shift, since the wrapper already reserves the
   image's box via aspect-ratio/fixed sizing. */
.img-skeleton { position: relative; }
.img-skeleton::before {
    content: ''; position: absolute; inset: 0; z-index: 3;
    background: linear-gradient(100deg, #e7eaf1 28%, #f4f5f9 48%, #e7eaf1 68%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.4s ease-in-out infinite;
    opacity: 1; transition: opacity 0.35s ease; pointer-events: none;
}
.img-skeleton.is-loaded::before { opacity: 0; }
@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
@media (prefers-reduced-motion: reduce) {
    .img-skeleton::before { animation: none; background: #eef0f4; }
}

/* Text-line skeleton blocks, for the rare case markup needs a placeholder without an image. */
.skeleton-line {
    display: block; border-radius: 999px; height: 0.85em;
    background: linear-gradient(100deg, #e7eaf1 28%, #f4f5f9 48%, #e7eaf1 68%);
    background-size: 200% 100%; animation: skeleton-shimmer 1.4s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) { .skeleton-line { animation: none; background: #eef0f4; } }

/* ---------- Page-navigation progress bar ---------- */
/* Gives instant feedback on link clicks/form submits before the next full page load lands —
   the single highest-value "skeleton" affordance for a server-rendered, non-SPA site on a slow link. */
#nav-progress {
    position: fixed; top: 0; left: 0; height: 3px; width: 0%; z-index: 2000;
    background: linear-gradient(90deg, var(--akg-blue), var(--akg-amber));
    box-shadow: 0 0 8px rgba(109, 40, 217, 0.6);
    transition: width 0.3s ease, opacity 0.3s ease; opacity: 0; pointer-events: none;
}
#nav-progress.is-active { opacity: 1; }

/* ---------- Reveal-on-scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Utilities ---------- */
.rounded-xl { border-radius: var(--bs-border-radius-lg) !important; }
.text-brand { color: var(--akg-blue) !important; }
.bg-brand-soft { background: rgba(47,111,237,0.08) !important; }
.text-gradient-brand {
    background: linear-gradient(135deg, var(--akg-blue), var(--akg-amber));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}

@media (max-width: 991.98px) {
    .hero { border-radius: 0 0 1.25rem 1.25rem; }
}