/* ==========================================================================
   Keypad Store — storefront design system
   Hand-written CSS layered on top of Bootstrap 5.3 (no build step). Uses
   Bootstrap's CSS-variable theming hooks so components (buttons, cards,
   forms, navbar) restyle without touching Bootstrap's own source.
   ========================================================================== */

:root {
    --ks-primary: #4338ca;
    --ks-primary-dark: #312896;
    --ks-primary-rgb: 67, 56, 202;
    --ks-accent: #f59e0b;
    --ks-accent-dark: #d97b06;
    --ks-ink: #16192b;
    --ks-ink-soft: #4b5065;
    --ks-surface: #ffffff;
    --ks-surface-muted: #f6f6fb;
    --ks-border: #e7e7f1;
    --ks-radius: 0.9rem;
    --ks-radius-sm: 0.6rem;
    --ks-shadow-sm: 0 1px 3px rgba(22, 25, 43, 0.06), 0 1px 2px rgba(22, 25, 43, 0.08);
    --ks-shadow: 0 8px 24px rgba(22, 25, 43, 0.08);
    --ks-shadow-lg: 0 20px 45px rgba(22, 25, 43, 0.14);

    /* Bootstrap theme hooks */
    --bs-primary: var(--ks-primary);
    --bs-primary-rgb: var(--ks-primary-rgb);
    --bs-link-color: var(--ks-primary);
    --bs-link-color-rgb: var(--ks-primary-rgb);
    --bs-link-hover-color: var(--ks-primary-dark);
    --bs-body-color: var(--ks-ink);
    --bs-body-font-family: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --bs-border-radius: var(--ks-radius-sm);
    --bs-border-radius-lg: var(--ks-radius);
    --bs-border-radius-sm: 0.45rem;
    --bs-border-color: var(--ks-border);
}

body {
    background: var(--ks-surface-muted);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ks-ink);
}

a {
    text-decoration: none;
}

.text-body-secondary {
    color: var(--ks-ink-soft) !important;
}

/* ---------- Buttons ---------- */
.btn {
    font-weight: 600;
    border-radius: var(--ks-radius-sm);
    padding-block: 0.55rem;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease, border-color 0.12s ease;
}

.btn-primary {
    --bs-btn-bg: var(--ks-primary);
    --bs-btn-border-color: var(--ks-primary);
    --bs-btn-hover-bg: var(--ks-primary-dark);
    --bs-btn-hover-border-color: var(--ks-primary-dark);
    --bs-btn-active-bg: var(--ks-primary-dark);
    --bs-btn-active-border-color: var(--ks-primary-dark);
    box-shadow: 0 6px 16px rgba(var(--ks-primary-rgb), 0.28);
}

.btn-primary:hover { transform: translateY(-1px); }

.btn-accent {
    background: var(--ks-accent);
    border-color: var(--ks-accent);
    color: #1a1200;
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.3);
}
.btn-accent:hover { background: var(--ks-accent-dark); border-color: var(--ks-accent-dark); color: #1a1200; transform: translateY(-1px); }

.btn-outline-primary {
    --bs-btn-color: var(--ks-primary);
    --bs-btn-border-color: var(--ks-primary);
    --bs-btn-hover-bg: var(--ks-primary);
    --bs-btn-hover-border-color: var(--ks-primary);
}

.btn-lg { border-radius: var(--ks-radius); }
.btn-sm { border-radius: 0.5rem; }

/* ---------- Cards ---------- */
.card {
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    box-shadow: var(--ks-shadow-sm);
}

.card-header {
    background: var(--ks-surface);
    border-bottom: 1px solid var(--ks-border);
    font-weight: 700;
    border-top-left-radius: var(--ks-radius) !important;
    border-top-right-radius: var(--ks-radius) !important;
}

/* ---------- Forms ---------- */
.form-control, .form-select {
    border-radius: var(--ks-radius-sm);
    border-color: var(--ks-border);
    padding-block: 0.55rem;
}
.form-control:focus, .form-select:focus {
    border-color: var(--ks-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--ks-primary-rgb), 0.15);
}
.form-check-input:checked {
    background-color: var(--ks-primary);
    border-color: var(--ks-primary);
}
.form-check-input:focus {
    box-shadow: 0 0 0 0.2rem rgba(var(--ks-primary-rgb), 0.15);
}

/* ---------- Badges ---------- */
.badge { font-weight: 600; letter-spacing: 0.01em; border-radius: 0.4rem; }
.text-bg-success { background-color: #0f9d58 !important; }
.text-bg-primary { background-color: var(--ks-primary) !important; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: 0.875rem; }
.breadcrumb-item + .breadcrumb-item::before { color: var(--ks-ink-soft); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    background: rgba(22, 25, 43, 0.97);
    backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: box-shadow 0.2s ease;
}
.site-header.is-scrolled { box-shadow: var(--ks-shadow-lg); }

.site-header .navbar-brand {
    font-family: 'Sora', var(--bs-body-font-family);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.site-header .navbar-brand .brand-mark {
    width: 2rem;
    height: 2rem;
    border-radius: 0.6rem;
    background: linear-gradient(135deg, var(--ks-accent), var(--ks-primary));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    font-size: 1rem;
}

.site-header .nav-link {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.82) !important;
    padding: 0.5rem 0.9rem !important;
    border-radius: 0.5rem;
    transition: background-color 0.15s ease, color 0.15s ease;
}
.site-header .nav-link:hover,
.site-header .nav-link.active {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.08);
}

.site-header .icon-link {
    position: relative;
    color: rgba(255, 255, 255, 0.9) !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    transition: background-color 0.15s ease;
}
.site-header .icon-link:hover { background: rgba(255, 255, 255, 0.1); }
.site-header .icon-link svg { width: 1.25rem; height: 1.25rem; }
.site-header .icon-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--ks-accent);
    color: #1a1200;
    font-size: 0.65rem;
    font-weight: 800;
    line-height: 1;
    min-width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.2rem;
}

.site-header .header-search {
    max-width: 380px;
}
.site-header .header-search .form-control {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.14);
    color: #fff;
}
.site-header .header-search .form-control::placeholder { color: rgba(255, 255, 255, 0.55); }
.site-header .header-search .form-control:focus {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: none;
    color: #fff;
}
.site-header .header-search .btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-left: none;
    color: #fff;
}

.offcanvas-dark {
    background: var(--ks-ink);
    color: #fff;
}
.offcanvas-dark .nav-link { color: rgba(255, 255, 255, 0.85); font-weight: 600; padding: 0.6rem 0; }
.offcanvas-dark .nav-link:hover { color: #fff; }
.offcanvas-dark hr { border-color: rgba(255, 255, 255, 0.12); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background: var(--ks-ink);
    color: rgba(255, 255, 255, 0.7);
}
.site-footer .footer-brand {
    font-family: 'Sora', var(--bs-body-font-family);
    font-weight: 800;
    font-size: 1.25rem;
    color: #fff;
}
.site-footer a { color: rgba(255, 255, 255, 0.7); }
.site-footer a:hover { color: #fff; }
.site-footer .footer-heading {
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.9rem;
}
.site-footer hr { border-color: rgba(255, 255, 255, 0.1); }

/* ==========================================================================
   Hero / carousel
   ========================================================================== */
.hero-carousel {
    border-radius: var(--ks-radius);
    overflow: hidden;
    box-shadow: var(--ks-shadow);
}
.hero-carousel .carousel-item img {
    filter: brightness(0.92);
}
.hero-carousel .carousel-caption {
    left: 5%;
    right: auto;
    bottom: auto;
    top: 50%;
    transform: translateY(-50%);
    text-align: left;
    max-width: 90%;
    background: none !important;
    padding: 0;
}
.hero-carousel .carousel-caption h2 {
    font-size: clamp(1.5rem, 4vw, 2.75rem);
    color: #fff;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}
.hero-carousel .carousel-indicators [data-bs-target] {
    width: 8px; height: 8px; border-radius: 50%;
}

/* ==========================================================================
   Section headings
   ========================================================================== */
.section-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}
.section-heading h2 {
    font-size: 1.5rem;
    margin-bottom: 0;
    position: relative;
    padding-left: 0.9rem;
}
.section-heading h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.15em;
    bottom: 0.15em;
    width: 4px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--ks-accent), var(--ks-primary));
}

/* ==========================================================================
   Product card
   ========================================================================== */
.product-card {
    position: relative;
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    overflow: hidden;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--ks-shadow-lg);
    border-color: transparent;
}
.product-card .product-card-media {
    position: relative;
    aspect-ratio: 1;
    background: var(--ks-surface-muted);
    overflow: hidden;
}
.product-card .product-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
}
.product-card:hover .product-card-media img { transform: scale(1.06); }
.product-card .product-card-media .no-image {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    color: var(--ks-ink-soft);
    font-size: 0.85rem;
}
.product-card .wishlist-btn {
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--ks-shadow-sm);
    color: #d63384;
    transition: transform 0.15s ease;
    z-index: 2;
}
.product-card .wishlist-btn:hover { transform: scale(1.08); }
.product-card .wishlist-btn svg { width: 1.05rem; height: 1.05rem; }
.product-card .badge-discount {
    position: absolute;
    top: 0.6rem;
    left: 0.6rem;
    background: var(--ks-accent);
    color: #1a1200;
    z-index: 2;
}
.product-card .card-body {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.product-card .product-brand {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ks-ink-soft);
}
.product-card .product-title {
    font-size: 0.92rem;
    font-weight: 600;
    margin: 0.15rem 0 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.4em;
}
.product-card .product-price {
    margin-top: auto;
}
.product-card .price-current { font-weight: 800; font-size: 1.05rem; color: var(--ks-ink); }
.product-card .price-old { font-size: 0.8rem; text-decoration: line-through; color: var(--ks-ink-soft); }

/* ==========================================================================
   Category chips
   ========================================================================== */
.category-card {
    display: block;
    text-align: center;
    text-decoration: none;
}
.category-card .category-thumb {
    aspect-ratio: 1;
    border-radius: 50%;
    overflow: hidden;
    background: var(--ks-surface-muted);
    border: 1px solid var(--ks-border);
    box-shadow: var(--ks-shadow-sm);
    transition: box-shadow 0.18s ease, transform 0.18s ease;
}
.category-card:hover .category-thumb { transform: translateY(-3px); box-shadow: var(--ks-shadow); }
.category-card .category-thumb img { width: 100%; height: 100%; object-fit: cover; }
.category-card .category-name {
    display: block;
    margin-top: 0.7rem;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--ks-ink);
}

/* ==========================================================================
   Promotional banner / newsletter
   ========================================================================== */
.promo-banner {
    border-radius: var(--ks-radius);
    overflow: hidden;
    margin: 0 auto;
    max-width: 1320px;
}
.promo-banner.promo-plain {
    background: linear-gradient(120deg, var(--ks-primary), var(--ks-primary-dark));
}

.newsletter-section {
    background: var(--ks-ink);
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--ks-radius);
    margin: 0 auto;
    max-width: 1320px;
}
.newsletter-section h2 { color: #fff; }
.newsletter-section .form-control {
    background: rgba(255, 255, 255, 0.95);
    border: none;
}

/* ==========================================================================
   Shop / filter sidebar
   ========================================================================== */
.filter-panel {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    padding: 1.25rem;
}
.filter-panel h2 {
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ks-ink-soft);
}
.filter-panel .category-list a {
    display: block;
    padding: 0.35rem 0;
    color: var(--ks-ink);
    font-size: 0.9rem;
}
.filter-panel .category-list a.fw-bold { color: var(--ks-primary); }

.toolbar {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius-sm);
    padding: 0.75rem 1rem;
}

/* ==========================================================================
   Gallery (product detail)
   ========================================================================== */
.gallery-main {
    border-radius: var(--ks-radius);
    overflow: hidden;
    border: 1px solid var(--ks-border);
    background: var(--ks-surface-muted);
}
.gallery-thumb {
    border-radius: 0.5rem;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color 0.15s ease;
}
.gallery-thumb.active,
.gallery-thumb:hover { border-color: var(--ks-primary); }

.buy-box {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    padding: 1.5rem;
}

.spec-table th { width: 45%; }

.mobile-buy-bar {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 1030;
    background: var(--ks-surface);
    border-top: 1px solid var(--ks-border);
    box-shadow: 0 -8px 24px rgba(22, 25, 43, 0.1);
    padding: 0.65rem 1rem;
    padding-bottom: calc(0.65rem + env(safe-area-inset-bottom));
}

/* ==========================================================================
   Cart / checkout
   ========================================================================== */
.cart-line {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius-sm);
}
.summary-card {
    position: sticky;
    top: 5.5rem;
}
.address-option {
    border: 1px solid var(--ks-border) !important;
    border-radius: var(--ks-radius-sm) !important;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}
.address-option:has(input:checked) {
    border-color: var(--ks-primary) !important;
    background: rgba(var(--ks-primary-rgb), 0.04);
}
.checkout-step-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1rem;
}
.checkout-step-title .step-num {
    width: 1.75rem; height: 1.75rem;
    border-radius: 50%;
    background: var(--ks-primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* ==========================================================================
   Account
   ========================================================================== */
.account-nav .nav-link {
    border-radius: var(--ks-radius-sm);
    font-weight: 600;
    color: var(--ks-ink-soft);
}
.account-nav .nav-link.active {
    background: var(--ks-primary) !important;
    color: #fff !important;
}

/* ==========================================================================
   Misc utility
   ========================================================================== */
.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    background: var(--ks-surface);
    border: 1px dashed var(--ks-border);
    border-radius: var(--ks-radius);
}
.empty-state svg { width: 3rem; height: 3rem; color: var(--ks-ink-soft); margin-bottom: 1rem; }

/* ==========================================================================
   Legal / policy pages
   ========================================================================== */
.policy-content {
    max-width: 800px;
    line-height: 1.7;
}
.policy-content h2 {
    font-size: 1.15rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}
.policy-content p,
.policy-content ul,
.policy-content ol {
    color: var(--ks-ink-soft);
    margin-bottom: 1rem;
}
.policy-content li { margin-bottom: 0.35rem; }
.policy-content .policy-updated {
    color: var(--ks-ink-soft);
    font-size: 0.85rem;
}
.policy-placeholder-notice {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.35);
    border-radius: var(--ks-radius-sm);
    padding: 0.9rem 1.1rem;
    font-size: 0.88rem;
    color: #7a4a02;
}

@media (max-width: 767.98px) {
    .hero-carousel .carousel-caption h2 { font-size: 1.5rem; }
    .summary-card { position: static; }
}