/* ==========================================================================
   FREEZE FOOD — Frozen Food & More
   ========================================================================== */

:root {
    --color-primary: #0e6ba8;
    --color-primary-dark: #094a75;
    --color-accent: #ff6b35;
    --color-success: #1f9d55;
    --color-bg: #f7fafc;
    --color-surface: #ffffff;
    --color-text: #1a2530;
    --color-text-muted: #5b6b78;
    --color-border: #e1e8ed;
    --color-danger: #d92d20;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;

    --shadow-sm: 0 1px 3px rgba(16, 42, 67, 0.08);
    --shadow-md: 0 6px 20px rgba(16, 42, 67, 0.10);
    --shadow-lg: 0 12px 32px rgba(16, 42, 67, 0.16);

    --header-height: 72px;
    --max-width: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body { overflow-x: hidden; width: 100%; }

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}

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

a { color: inherit; text-decoration: none; }

button { font-family: inherit; cursor: pointer; touch-action: manipulation; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

@media (max-width: 480px) {
    .container { padding: 0 14px; }
}

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-md);
    border: none;
    font-size: 15px;
    font-weight: 600;
    transition: transform 0.1s ease, background 0.15s ease, box-shadow 0.15s ease;
    min-height: 44px;
}

.btn:active { transform: scale(0.98); }

.btn--primary {
    background: var(--color-primary);
    color: #fff;
}
.btn--primary:hover { background: var(--color-primary-dark); }

.btn--accent {
    background: var(--color-accent);
    color: #fff;
}
.btn--accent:hover { background: #e05a26; }

.btn--whatsapp {
    background: #25d366;
    color: #fff;
}
.btn--whatsapp:hover { background: #1fb958; }

.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}
.btn--outline:hover { background: rgba(14, 107, 168, 0.08); }

.btn--full { width: 100%; }
.btn--large { padding: 16px 28px; font-size: 17px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.link-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    padding: 4px;
}
.link-btn:hover { text-decoration: underline; }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    color: var(--color-primary-dark);
    min-width: 0;
}

.brand__logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    flex-shrink: 0;
}

.brand__subtitle {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-muted);
}

@media (max-width: 480px) {
    .brand { font-size: 17px; gap: 8px; }
    .brand__logo-img { width: 36px; height: 36px; }
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.main-nav__link {
    font-weight: 600;
    font-size: 15px;
    color: var(--color-text);
    padding: 8px 0;
    position: relative;
}
.main-nav__link:hover,
.main-nav__link:focus-visible { color: var(--color-primary); }

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

.cart-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    position: relative;
    min-height: 44px;
}
.cart-link:hover { background: #eef3f7; }

@media (max-width: 480px) {
    .cart-link { padding: 8px 10px; gap: 6px; font-size: 14px; }
}

.cart-badge {
    background: var(--color-accent);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    min-width: 20px;
    height: 20px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
}
.cart-badge--hidden { display: none; }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 26px;
    padding: 6px 8px;
    color: var(--color-text);
    min-width: 44px;
    min-height: 44px;
}

@media (max-width: 860px) {
    .header-inner { height: 64px; }
    .main-nav {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 8px 20px 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        display: none;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }
    .main-nav--open { display: flex; }
    .main-nav__link {
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid var(--color-border);
        font-size: 16px;
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    .nav-toggle { display: block; }
    .brand__subtitle { display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    background: linear-gradient(135deg, #0e6ba8 0%, #094a75 100%);
    color: #fff;
    padding: 64px 0;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.hero__title {
    font-size: 42px;
    line-height: 1.15;
    margin: 0 0 16px;
    font-weight: 800;
}

.hero__text {
    font-size: 17px;
    color: rgba(255,255,255,0.9);
    margin: 0 0 28px;
    max-width: 480px;
}

.hero__actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero__image {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #fff;
    width: 100%;
}

@media (max-width: 860px) {
    .hero { padding: 32px 0; }
    .hero-inner { grid-template-columns: 1fr; gap: 24px; }
    .hero__title { font-size: 26px; }
    .hero__image { order: -1; }
}

@media (max-width: 480px) {
    .hero__title { font-size: 23px; }
    .hero__text { font-size: 15px; margin-bottom: 20px; }
    .hero__actions { flex-direction: column; gap: 10px; }
    .hero__actions .btn { width: 100%; }
}

/* ==========================================================================
   Section headings
   ========================================================================== */

.section { padding: 56px 0; }
.section--tight { padding: 40px 0; }

.section-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 8px;
}

.section-heading__title {
    font-size: 26px;
    font-weight: 800;
    margin: 0;
}

.section-heading__subtitle {
    color: var(--color-text-muted);
    font-size: 15px;
}

@media (max-width: 480px) {
    .section { padding: 36px 0; }
    .section--tight { padding: 28px 0; }
    .section-heading__title { font-size: 21px; }
    .section-heading__subtitle { font-size: 13px; }
}

/* ==========================================================================
   Categories
   ========================================================================== */

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.category-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.category-card__image-wrap {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: #eef3f7;
}

.category-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-card__name {
    font-weight: 700;
    font-size: 14px;
    padding: 10px 8px;
}

@media (max-width: 860px) {
    .category-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
}

@media (max-width: 480px) {
    .category-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .category-card__name { font-size: 12px; padding: 8px 4px; }
}

/* ==========================================================================
   Product grid + cards
   ========================================================================== */

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 20px;
}

@media (max-width: 640px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 360px) {
    .product-grid { grid-template-columns: 1fr; }
}

.product-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.product-card__image-wrap {
    position: relative;
    aspect-ratio: 4 / 3;
    background: #eef3f7;
}

.product-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.badge {
    position: absolute;
    top: 10px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
}
.badge--discount { left: 10px; background: var(--color-accent); }
.badge--unavailable { right: 10px; background: var(--color-danger); }

.product-card__body {
    padding: 14px 16px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.product-card__brand { font-size: 12px; color: var(--color-text-muted); margin: 0; text-transform: uppercase; letter-spacing: 0.03em; }
.product-card__name { font-size: 16px; font-weight: 700; margin: 0; }
.product-card__weight { font-size: 13px; color: var(--color-text-muted); margin: 0 0 8px; }

.product-card__price-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
    margin-top: auto;
}
.product-card__old-price { text-decoration: line-through; color: var(--color-text-muted); font-size: 13px; }
.product-card__price { font-size: 19px; font-weight: 800; color: var(--color-primary-dark); }

.product-card__unavailable-text {
    color: var(--color-danger);
    font-weight: 700;
    font-size: 14px;
    text-align: center;
    margin: 8px 0 0;
}

@media (max-width: 640px) {
    .product-card__body { padding: 10px 12px 12px; gap: 2px; }
    .product-card__name { font-size: 14px; line-height: 1.3; }
    .product-card__brand { font-size: 11px; }
    .product-card__weight { font-size: 12px; margin-bottom: 6px; }
    .product-card__price { font-size: 16px; }
    .product-card__old-price { font-size: 12px; }
    .product-card__price-row { margin-bottom: 8px; }
    .add-to-cart-btn { padding: 10px 12px; font-size: 13px; min-height: 40px; }
    .badge { font-size: 11px; padding: 3px 8px; }
}

/* ==========================================================================
   Empty state
   ========================================================================== */

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
}
.empty-state__title { font-size: 18px; font-weight: 700; color: var(--color-text); margin: 0 0 6px; }
.empty-state__text { margin: 0; }

/* ==========================================================================
   Catalogue toolbar
   ========================================================================== */

.catalogue-toolbar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.search-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.search-input,
.sort-select,
.form-input,
.form-textarea {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 15px;
    background: var(--color-surface);
    color: var(--color-text);
    width: 100%;
}
.search-input:focus, .sort-select:focus, .form-input:focus, .form-textarea:focus {
    border-color: var(--color-primary);
}

.search-row .search-input { flex: 1; min-width: 200px; }
.search-row .sort-select { width: auto; min-width: 180px; }

@media (max-width: 480px) {
    .search-row { flex-direction: column; }
    .search-row .search-input,
    .search-row .sort-select { width: 100%; min-width: 0; min-height: 44px; }
    .chip-row { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
    .chip-row::-webkit-scrollbar { display: none; }
    .chip { flex-shrink: 0; }
}

.chip-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.chip {
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}
.chip:hover { border-color: var(--color-primary); }
.chip--active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.result-count { font-size: 14px; color: var(--color-text-muted); margin: 0 0 16px; }

/* ==========================================================================
   Toasts
   ========================================================================== */

.toast-container {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    width: 100%;
    padding: 0 16px;
}

.toast {
    background: var(--color-text);
    color: #fff;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    box-shadow: var(--shadow-lg);
    max-width: 90vw;
}
.toast--visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Cart page
   ========================================================================== */

.cart-layout {
    max-width: 720px;
    margin: 0 auto;
}

.cart-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 24px;
}

.cart-row {
    display: grid;
    grid-template-columns: 72px 1fr auto;
    gap: 14px;
    align-items: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 12px;
}

.cart-row__image {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: #eef3f7;
}

.cart-row__name { font-weight: 700; margin: 0; font-size: 15px; }
.cart-row__weight { color: var(--color-text-muted); font-size: 13px; margin: 2px 0 8px; }
.cart-row__right { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.cart-row__price { font-weight: 800; margin: 0; }
.cart-row__remove { color: var(--color-danger); padding: 8px 4px; min-height: 36px; }

.qty-control {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 4px;
    width: fit-content;
}

.qty-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--color-bg);
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.qty-btn:hover { background: var(--color-border); }
.qty-value { min-width: 20px; text-align: center; font-weight: 700; }

@media (max-width: 480px) {
    .cart-row { grid-template-columns: 60px 1fr auto; gap: 10px; padding: 10px; }
    .cart-row__image { width: 60px; height: 60px; }
    .cart-row__name { font-size: 14px; }
    .cart-row__price { font-size: 14px; }
}

.cart-summary {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
}

.cart-summary__row {
    display: flex;
    justify-content: space-between;
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cart-summary__actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.cart-summary__actions .btn { flex: 1; min-width: 160px; }

@media (max-width: 640px) {
    .cart-summary {
        position: sticky;
        bottom: 0;
        margin: 0 -20px;
        border-radius: 0;
        border-left: none;
        border-right: none;
        box-shadow: 0 -6px 20px rgba(16, 42, 67, 0.12);
        padding: 14px 20px;
        padding-bottom: max(14px, env(safe-area-inset-bottom));
    }
    .cart-summary__row { font-size: 16px; margin-bottom: 10px; }
    .cart-summary__actions { flex-wrap: nowrap; }
    .cart-summary__actions .btn { min-width: 0; }
    .cart-list { padding-bottom: 4px; }
}

@media (max-width: 480px) {
    .cart-summary { margin: 0 -14px; padding: 14px; padding-bottom: max(14px, env(safe-area-inset-bottom)); }
}

.cart-footer-links {
    text-align: center;
    margin-top: 14px;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group { margin-bottom: 18px; }
.form-label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 6px; }
.form-hint { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; }
.form-error { font-size: 13px; color: var(--color-danger); min-height: 18px; margin-top: 4px; }
.input--error { border-color: var(--color-danger); }
.form-textarea { resize: vertical; min-height: 80px; }

.form-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
}

@media (max-width: 480px) {
    .form-card { padding: 16px; }
    .form-input, .form-textarea { font-size: 16px; }
}

/* ==========================================================================
   Order review
   ========================================================================== */

.review-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
}

@media (max-width: 480px) {
    .review-card { padding: 16px; }
}

.review-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed var(--color-border);
    font-size: 14px;
}

.review-subtotal-row {
    display: flex;
    justify-content: space-between;
    font-weight: 800;
    font-size: 18px;
    padding: 16px 0;
}

.review-detail-row { font-size: 14px; margin: 4px 0; }
.review-detail-label { color: var(--color-text-muted); }

.review-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.review-secondary-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.review-secondary-actions .btn { flex: 1; }

.order-status {
    background: #e9f7ef;
    border: 1px solid var(--color-success);
    color: #14532d;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    margin-top: 16px;
    font-weight: 600;
    font-size: 14px;
}

.desktop-fallback {
    margin-top: 24px;
    border-top: 1px solid var(--color-border);
    padding-top: 20px;
}
.desktop-fallback__title { font-weight: 700; margin-bottom: 4px; }
.desktop-fallback__text { color: var(--color-text-muted); font-size: 13px; margin-bottom: 14px; }
.desktop-fallback__grid {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 20px;
    align-items: center;
}
#qr-code { background: #fff; padding: 8px; border-radius: var(--radius-sm); border: 1px solid var(--color-border); width: fit-content; }
.desktop-fallback__actions { display: flex; flex-direction: column; gap: 10px; }

@media (max-width: 600px) {
    .desktop-fallback__grid { grid-template-columns: 1fr; text-align: center; }
    #qr-code { margin: 0 auto; }
}

/* ==========================================================================
   Empty cart
   ========================================================================== */

.empty-cart {
    text-align: center;
    padding: 60px 20px;
}
.empty-cart__title { font-size: 20px; font-weight: 800; margin-bottom: 8px; }
.empty-cart__text { color: var(--color-text-muted); margin-bottom: 24px; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background: #0c2436;
    color: #cfe0ec;
    margin-top: 60px;
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 32px;
}

.footer-col__title { color: #fff; font-size: 15px; font-weight: 700; margin: 0 0 14px; }
.footer-col p, .footer-col a { font-size: 14px; color: #a9c1d1; margin: 0 0 8px; display: block; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: #7f97a8;
}

@media (max-width: 860px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .site-footer { padding: 36px 0 20px; margin-top: 40px; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
}

/* ==========================================================================
   Utility
   ========================================================================== */

[hidden] { display: none !important; }
.text-center { text-align: center; }