/* ═══════════════════════════════════════════════════════════
   BASE STYLES — Shared layout and components across all skins.
   Theme-specific colors/fonts are in themes/*.css
   ═══════════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties (defaults, overridden by themes) ─── */
:root {
    --color-bg: #000;
    --color-text: #eee;
    --color-text-muted: #999;
    --color-primary: #00ff73;
    --color-primary-dim: rgba(0, 255, 115, 0.3);
    --color-secondary: #5e00ff;
    --color-accent: #ff007b;
    --color-accent-dim: rgba(255, 0, 123, 0.5);
    --color-primary-subtle: rgba(0, 255, 115, 0.05);
    /* Badge / stock / sold-out */
    --color-badge-bg: #5e00ff;
    --color-badge-text: #ff007b;
    --color-stock-text: #999;
    --color-soldout-text: #ff007b;
    --color-soldout-glow: rgba(255, 0, 123, 0.5);
    --color-soldout-overlay: rgba(0, 0, 0, 0.45);

    --color-surface: #111;
    --color-border: #222;

    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: var(--font-body);
    --font-display: var(--font-body);

    --max-width: 1200px;
    --gap: 1.5rem;
    --radius: 6px;

    --header-height: 64px;
    --border-inset: 0px;
    --color-input-fill: var(--color-surface);
}

/* ─── Decorative Border Frame (9-slice, theme-driven) ──── */
.border-frame {
    position: fixed;
    inset: 0;
    z-index: 999;
    pointer-events: none;
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    padding: var(--border-inset);
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

/* ─── Header ─────────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: var(--border-inset);
    z-index: 100;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

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

.site-logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: 0.02em;
}

.site-logo:hover {
    text-decoration: none;
}

.site-logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.site-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--color-text);
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.cart-link {
    position: relative;
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -12px;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ─── Main ───────────────────────────────────────────────── */
.site-main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--gap);
    min-height: calc(100vh - var(--header-height) - 80px - 2 * var(--border-inset));
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: var(--gap);
}

/* ─── Product Grid ───────────────────────────────────────── */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--gap);
}

.product-card {
    background: transparent;
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.2s;
}

.product-card:hover {
    transform: translateY(-4px);
}

.product-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.product-card-link:hover {
    text-decoration: none;
}

.product-card-img img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.product-card-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

/* ─── Product Card: Image Wrapper + Overlays ────────────── */
.product-card-img-wrap {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
}

.product-card--sold-out .product-card-img-wrap img {
    filter: grayscale(60%) brightness(0.5);
}

.sold-out-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-soldout-overlay);
}

.sold-out-text {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-soldout-text);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-shadow: 0 0 20px var(--color-soldout-glow);
    transform: rotate(-12deg);
}

.badge-limited {
    display: inline-block;
    background: var(--color-badge-bg);
    color: var(--color-badge-text);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
}

.product-card-img-wrap .badge-limited {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 1;
}

.product-card-info {
    padding: 0.75rem 0;
}

.product-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.product-card-price {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 600;
}

/* ─── Product Detail ─────────────────────────────────────── */
.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--gap) * 2);
    align-items: start;
}

.product-gallery-main {
    cursor: zoom-in;
}

.product-gallery-main img {
    max-width: 100%;
    border-radius: var(--radius);
}

.product-gallery-thumbs {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.gallery-thumb {
    background: none;
    border: 2px solid transparent;
    border-radius: var(--radius);
    padding: 0;
    cursor: pointer;
    width: 64px;
    height: 64px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--color-primary);
}

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

.product-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.product-price {
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 1rem;
}

.product-description {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.product-stock-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.stock-remaining {
    font-size: 0.9rem;
    color: var(--color-stock-text);
}

.product-shipping-note {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ─── Sold-Out Notice + Notify Form ─────────────────────── */
.sold-out-notice {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--color-surface);
}

.sold-out-notice-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--color-soldout-text);
    letter-spacing: 0.08em;
    margin-bottom: 0.25rem;
}

.sold-out-notice-desc {
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
}

.notify-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.notify-input-group {
    display: flex;
    gap: 0.5rem;
}

.notify-email {
    flex: 1;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 0.95rem;
}

.notify-email:focus {
    outline: none;
    border-color: var(--color-primary);
}

.btn-notify {
    white-space: nowrap;
}

.notify-feedback {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--color-primary);
}

.notify-feedback.error {
    color: var(--color-accent);
}

/* ─── Quantity Control ───────────────────────────────────── */
.quantity-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.qty-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 1.2rem;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s, background 0.2s;
}

.qty-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-dim);
}

.qty-input {
    width: 50px;
    height: 36px;
    text-align: center;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    border-radius: var(--radius);
    font-size: 1rem;
    -moz-appearance: textfield;
}

.qty-input::-webkit-inner-spin-button,
.qty-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--color-primary);
    color: #000;
}

.btn-primary:hover {
    box-shadow: 0 0 20px var(--color-primary-dim);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text-muted);
}

.btn-remove {
    background: transparent;
    color: var(--color-accent);
    border: none;
    font-size: 1.5rem;
    padding: 0.25rem 0.5rem;
    cursor: pointer;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* ─── Cart Page ──────────────────────────────────────────── */
.cart-empty {
    text-align: center;
    padding: 3rem 0;
}

.cart-empty p {
    margin-bottom: 1rem;
    color: var(--color-text-muted);
}

.cart-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: calc(var(--gap) * 2);
    align-items: start;
}

.cart-item {
    display: grid;
    grid-template-columns: 80px 1fr auto auto auto;
    gap: 1rem;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
}

.cart-item-img img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius);
}

.cart-item-name a {
    color: var(--color-text);
}

.cart-item-name a:hover {
    color: var(--color-primary);
}

.cart-item-price {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.cart-item-subtotal {
    font-weight: 600;
    font-size: 1.1rem;
}

.cart-summary {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    position: sticky;
    top: calc(var(--header-height) + var(--gap) + var(--border-inset));
}

.cart-summary-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.cart-summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
}

.cart-summary-total {
    font-size: 1.2rem;
    font-weight: 700;
    border-bottom: none;
    margin-bottom: 1rem;
}

.btn-checkout {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
}

.cart-summary .btn-secondary {
    display: block;
    width: 100%;
    text-align: center;
}

/* ─── Checkout Page ─────────────────────────────────────── */
.checkout-section {
    padding: 2rem 0;
}

.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 2rem;
    align-items: start;
}

.checkout-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.25rem;
}

.checkout-panel-title {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.form-group {
    margin-bottom: 0.75rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    color: var(--color-text);
}

.form-group .optional {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

.form-control {
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary-dim);
}

/* Kill browser autofill yellow background — use theme fill color */
.form-control:-webkit-autofill,
.form-control:-webkit-autofill:hover,
.form-control:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--color-text);
    -webkit-box-shadow: 0 0 0 1000px var(--color-input-fill) inset;
    transition: background-color 5000s ease-in-out 0s;
}

::selection {
    background: var(--color-secondary);
    color: #fff;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2rem;
}

.form-row {
    display: flex;
    gap: 0.75rem;
}

.form-group-half {
    flex: 1;
}

.form-group-third {
    flex: 1;
}

/* Payment Element container */
.payment-mount {
    min-height: 80px;
}

.payment-errors {
    color: var(--color-accent);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 68, 102, 0.1);
    border-radius: var(--radius);
}

.btn-place-order {
    display: block;
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.btn-place-order:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.checkout-spinner {
    text-align: center;
    padding: 1rem;
    color: var(--color-text-muted);
}

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Checkout summary (right column) */
.checkout-summary-inner {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    position: sticky;
    top: calc(var(--header-height) + var(--gap) + var(--border-inset));
}

.checkout-summary-title {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.checkout-summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    font-size: 0.85rem;
}

.checkout-summary-item-info {
    display: flex;
    gap: 0.4rem;
    color: var(--color-text);
}

.checkout-summary-item-qty {
    color: var(--color-text-muted);
}

.checkout-summary-item-price {
    color: var(--color-text-muted);
}

.checkout-summary-rows {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
}

.checkout-summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.3rem 0;
    font-size: 0.9rem;
}

.checkout-summary-row-tax span:last-child {
    color: var(--color-secondary);
    font-style: italic;
    font-size: 0.85rem;
}

.checkout-summary-row-total {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
    font-weight: 700;
    font-size: 1.1rem;
}

.checkout-tax-refresh-row {
    justify-content: flex-end;
    border-bottom: none;
    padding: 0.25rem 0 0.5rem;
}

.btn-refresh-tax {
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-body);
    transition: border-color 0.2s, color 0.2s;
}

.btn-refresh-tax:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.btn-refresh-tax:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Responsive checkout */
@media (max-width: 768px) {
    .checkout-layout {
        grid-template-columns: 1fr;
    }

    .checkout-summary {
        order: -1;
    }

    .checkout-summary-inner {
        position: static;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }
}

/* ─── Checkout Transition (kept for fallback) ───────────── */
.checkout-transition { padding: 3rem 0; display: flex; justify-content: center; }
.checkout-transition-box { text-align: center; max-width: 520px; width: 100%; padding: 2rem; }

/* ─── Confirmation ──────────────────────────────────────── */
.confirmation-section {
    padding: 3rem 0;
    display: flex;
    justify-content: center;
}

.confirmation-box {
    text-align: center;
    max-width: 560px;
    width: 100%;
    padding: 2rem;
}

.confirmation-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #000;
    font-size: 2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.confirmation-subtitle {
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.confirmation-email-info {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.confirmation-email-info p {
    margin-bottom: 0.3rem;
}

.confirmation-email-from {
    font-size: 0.85rem;
}

.confirmation-email-hint {
    font-size: 0.78rem;
    font-style: italic;
    opacity: 0.7;
    margin-bottom: 0;
}

.confirmation-details {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    text-align: left;
}

.confirmation-details h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.confirmation-item {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.confirmation-subtotals {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.confirmation-total {
    display: flex;
    justify-content: space-between;
    padding-top: 0.75rem;
    margin-top: 0.75rem;
    border-top: 1px solid var(--color-border);
    font-weight: bold;
    font-size: 1.1rem;
}

/* ─── Cart Tax Note ─────────────────────────────────────── */
.cart-summary-tax .tax-note {
    color: var(--color-secondary);
    font-size: 0.85rem;
    font-style: italic;
}

.cart-summary-tax-disclaimer {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    text-align: center;
}

/* ─── Checkout Transition Page ──────────────────────────── */
.checkout-transition {
    padding: 3rem 0;
    display: flex;
    justify-content: center;
}

.checkout-transition-box {
    text-align: center;
    max-width: 520px;
    width: 100%;
    padding: 2rem;
}

.checkout-transition-lock {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.checkout-transition-summary {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
    text-align: left;
}

.checkout-transition-summary h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.checkout-transition-item {
    display: flex;
    justify-content: space-between;
    padding: 0.35rem 0;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.checkout-transition-row {
    display: flex;
    justify-content: space-between;
    padding: 0.35rem 0;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.checkout-transition-tax span:last-child {
    color: var(--color-secondary);
    font-style: italic;
    font-size: 0.85rem;
}

.checkout-transition-note {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.btn-checkout-go {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    padding: 0.9rem;
}

.checkout-transition .btn-secondary {
    display: block;
    width: 100%;
    text-align: center;
}

.checkout-transition-badges {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.checkout-badge {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ─── Value Propositions (homepage) ─────────────────────── */
.value-props {
    padding: 3rem 0 2rem;
    border-top: 1px solid var(--color-border);
    margin-top: 2rem;
}

.value-props-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--gap);
}

.value-prop {
    text-align: left;
    padding: 1.5rem 1rem;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.value-prop-icon {
    font-size: 1.25rem;
    color: var(--color-secondary);
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.value-prop-title {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
}

.value-prop-text {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

@media (max-width: 600px) {
    .value-props-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* ─── Notification Toast ─────────────────────────────────── */
.cart-notification {
    position: fixed;
    bottom: calc(20px + var(--border-inset));
    right: calc(20px + var(--border-inset));
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius);
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    z-index: 1000;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s, transform 0.3s;
}

.cart-notification.show {
    opacity: 1;
    transform: translateY(0);
}

.cart-notification-error {
    border-color: var(--color-accent);
}

.cart-notification-link {
    color: var(--color-primary);
    font-weight: 600;
    margin-left: 0.75rem;
    text-decoration: none;
}

.cart-notification-link:hover {
    text-decoration: underline;
}

/* ─── Empty State ────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--color-text-muted);
}

/* ─── Footer ─────────────────────────────────────────────── */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--gap);
}

/* ─── Responsive: Mobile ─────────────────────────────────── */
@media (max-width: 768px) {
    .product-detail-layout {
        grid-template-columns: 1fr;
        gap: var(--gap);
    }

    .cart-layout {
        grid-template-columns: 1fr;
    }

    .cart-item {
        grid-template-columns: 60px 1fr auto;
        gap: 0.75rem;
    }

    .cart-item-qty {
        grid-column: 2 / -1;
    }

    .cart-item-subtotal {
        grid-column: 2;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .product-title {
        font-size: 1.5rem;
    }
}