/* Ezirka Shop — mobile-first, no build step, no UI framework.
   Principle: minimum visual noise, maximum products on screen. */

:root {
    --bg: #ffffff;
    --bg-alt: #f6f7f8;
    --border: #e4e6e9;
    --text: #1c1e21;
    --text-muted: #6b7280;
    --brand: #1a56db;
    --brand-dark: #12409e;
    --danger: #dc2626;
    --success: #16a34a;
    --star: #f5a623;
    --radius: 8px;
    --gap: 12px;
    --header-h: 56px;
    font-size: 15px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: var(--bg-alt);
    line-height: 1.45;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { margin: 0 0 .5em; line-height: 1.25; }
.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; }

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 12px;
}

/* -- header ------------------------------------------------------------ */
.site-header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
}
.site-header__bar {
    display: flex;
    align-items: center;
    gap: var(--gap);
    height: var(--header-h);
}
.logo { font-weight: 700; font-size: 20px; color: var(--brand); flex-shrink: 0; }
.search-form { flex: 1; display: flex; }
.search-form input {
    flex: 1;
    border: 1px solid var(--border);
    border-radius: var(--radius) 0 0 var(--radius);
    padding: 8px 12px;
    min-width: 0;
}
.search-form button {
    border: 1px solid var(--brand);
    background: var(--brand);
    color: #fff;
    padding: 0 16px;
    border-radius: 0 var(--radius) var(--radius) 0;
    cursor: pointer;
}
.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.header-actions a { display: flex; align-items: center; gap: 4px; font-size: 14px; }
.cart-badge {
    background: var(--brand);
    color: #fff;
    border-radius: 999px;
    font-size: 11px;
    padding: 1px 6px;
    margin-left: 2px;
}
.menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border);
    background: none;
    border-radius: var(--radius);
    padding: 6px 10px;
    cursor: pointer;
}

/* -- category nav -------------------------------------------------------- */
.category-nav {
    display: none;
    position: fixed;
    z-index: 19;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 24px rgba(28, 30, 33, .12);
}
.category-nav.is-open { display: block; }
.category-nav .container { max-height: min(72vh, 640px); overflow-y: auto; padding-top: 14px; padding-bottom: 18px; }
.category-nav__topbar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.category-nav__heading { font-size: 15px; font-weight: 700; }
.category-nav__all { margin-left: auto; color: var(--brand); font-size: 13px; font-weight: 600; white-space: nowrap; }
.category-nav__back { display: none; border: 0; padding: 0; color: var(--brand); background: transparent; cursor: pointer; font-size: 14px; }
.category-nav__body { display: grid; grid-template-columns: 224px minmax(0, 1fr); min-height: 300px; border-top: 1px solid var(--border); }
.category-nav__departments { padding: 8px; background: var(--bg-alt); border-right: 1px solid var(--border); }
.category-nav__department { display: flex; align-items: center; justify-content: space-between; width: 100%; border: 0; border-radius: 6px; padding: 9px 10px; color: var(--text); background: transparent; cursor: pointer; text-align: left; font-size: 14px; }
.category-nav__department span { color: var(--text-muted); }
.category-nav__department:hover { background: #edf3ff; color: var(--brand); }
.category-nav__department[aria-selected="true"] { color: var(--brand); background: #e7efff; font-weight: 700; }
.category-nav__panels { min-width: 0; background: var(--bg); }
.category-nav__panel { padding: 16px 18px; }
.category-nav__panel-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 12px; }
.category-nav__panel-heading h2 { margin: 0; font-size: 16px; }
.category-nav__panel-heading a { color: var(--brand); font-size: 13px; font-weight: 600; white-space: nowrap; }
.category-nav__children { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2px 18px; }
.category-nav__children a { display: block; padding: 7px 4px; color: var(--text-muted); border-radius: 4px; font-size: 13.5px; }
.category-nav__children a:hover { color: var(--brand); background: #f1f5ff; text-decoration: none; }
.category-nav__empty { color: var(--text-muted); font-size: 13.5px; }
.category-nav__nojs { max-width: 1400px; margin: 0 auto; padding: 8px 12px; font-size: 13px; text-align: right; }
.category-nav__nojs a { color: var(--brand); }

@media (max-width: 699px) {
    .category-nav { min-height: calc(100vh - var(--header-h)); }
    .category-nav .container { max-height: calc(100vh - var(--header-h)); padding-bottom: 24px; }
    .category-nav__body { display: block; min-height: 0; border-bottom: 1px solid var(--border); }
    .category-nav__departments { border-right: 0; }
    .category-nav__department { min-height: 44px; }
    .category-nav__panels { display: none; }
    .category-nav.is-showing-panel .category-nav__departments { display: none; }
    .category-nav.is-showing-panel .category-nav__panels { display: block; }
    .category-nav__back:not([hidden]) { display: inline-block; }
    .category-nav.is-showing-panel .category-nav__heading { display: none; }
    .category-nav__children { grid-template-columns: 1fr; gap: 0; }
    .category-nav__children a { min-height: 42px; padding: 10px 4px; border-bottom: 1px solid var(--border); }
}

@media (min-width: 700px) {
    .category-nav__department span { display: none; }
}

@media (min-width: 1100px) {
    .category-nav__children { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* -- all categories directory ------------------------------------------- */
.catalog-directory { padding: 18px 0 28px; }
.catalog-directory__header { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
.catalog-directory__header h1 { margin: 0 0 4px; font-size: 24px; }
.catalog-directory__header p { margin: 0; color: var(--text-muted); }
.catalog-directory__search { width: min(100%, 360px); }
.catalog-directory__search input { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); }
.catalog-directory__content { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.catalog-directory__tree { display: grid; grid-template-columns: repeat(1, minmax(0, 1fr)); gap: 12px 20px; }
.catalog-directory__tree--depth-0 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.catalog-directory__node { min-width: 0; }
.catalog-directory__tree--depth-0 > .catalog-directory__node > a { display: inline-block; color: var(--brand); font-weight: 700; margin-bottom: 6px; }
.catalog-directory__tree--depth-1 { display: block; }
.catalog-directory__tree--depth-1 > .catalog-directory__node { margin: 5px 0; }
.catalog-directory__tree--depth-1 a { color: var(--text-muted); font-size: 13.5px; }
.catalog-directory__tree--depth-2 { padding-left: 12px; margin-top: 4px; }
.catalog-directory__tree--depth-2 > .catalog-directory__node { margin: 4px 0; }
.catalog-directory__tree--depth-2 a { font-size: 13px; color: var(--text-muted); }
.catalog-directory__count { margin-left: 5px; color: var(--text-muted); font-size: 11px; }
.catalog-directory__empty { margin: 16px 0 0; color: var(--text-muted); }

@media (max-width: 640px) {
    .catalog-directory__content { padding: 12px; }
    .catalog-directory__tree--depth-0 { grid-template-columns: 1fr; }
}

/* -- breadcrumbs -------------------------------------------------------- */
.breadcrumbs { font-size: 12.5px; color: var(--text-muted); margin: 12px 0; }
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs span { margin: 0 4px; }

/* -- layout: sidebar + content ------------------------------------------ */
.catalog-layout { display: flex; gap: 20px; align-items: flex-start; }
.filters { width: 240px; flex-shrink: 0; display: none; }
.filters.is-open { display: block; }
.filters-toggle {
    display: inline-block;
    margin-bottom: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    border-radius: var(--radius);
    padding: 8px 14px;
    cursor: pointer;
}
.filter-group {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    margin-bottom: 10px;
}
.filter-group h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .03em; color: var(--text-muted); }
.filter-group summary {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .03em;
    color: var(--text-muted);
    cursor: pointer;
    list-style: none;
}
.filter-group summary::-webkit-details-marker { display: none; }
.filter-group summary::after { content: '+'; float: right; }
.filter-group[open] summary::after { content: '\2212'; }
.filter-group[open] summary { margin-bottom: 8px; }
.filter-group .filter-option, .filter-group .filter-range { margin-top: 6px; }
.filter-option { display: flex; align-items: center; justify-content: space-between; gap: 6px; font-size: 13.5px; padding: 3px 0; cursor: pointer; }
.filter-option .count { color: var(--text-muted); font-size: 12px; }
.filter-range { display: flex; gap: 6px; align-items: center; }
.filter-range input { width: 100%; border: 1px solid var(--border); border-radius: 6px; padding: 5px 6px; }
.filters-apply, .filters-clear { width: 100%; margin-top: 6px; }

.catalog-main { flex: 1; min-width: 0; }
.catalog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.result-count { font-size: 13px; color: var(--text-muted); }
.sort-select { border: 1px solid var(--border); border-radius: var(--radius); padding: 6px 10px; background: var(--bg); }

/* -- product grid: mobile-first, spec: 2-3 / 4-6 / 5-8 columns ---------- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
@media (min-width: 420px)  { .product-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 640px)  { .product-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 800px)  { .product-grid { grid-template-columns: repeat(5, 1fr); } }
@media (min-width: 1000px) { .product-grid { grid-template-columns: repeat(6, 1fr); } }
@media (min-width: 1200px) { .product-grid { grid-template-columns: repeat(7, 1fr); } }
@media (min-width: 1400px) { .product-grid { grid-template-columns: repeat(8, 1fr); } }

.card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.card__image { aspect-ratio: 1 / 1; background: var(--bg-alt); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.card__image img { width: 100%; height: 100%; object-fit: contain; }
.card__body { padding: 8px 10px 10px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.card__name { font-size: 12.5px; line-height: 1.3; min-height: 2.6em; overflow: hidden; }
.card__price { font-weight: 700; font-size: 14.5px; }
.card__old-price { color: var(--text-muted); text-decoration: line-through; font-size: 12px; font-weight: 400; margin-left: 5px; }
.card__discount { display: inline-block; background: var(--danger); color: #fff; font-size: 10.5px; padding: 1px 5px; border-radius: 4px; }
.card__rating { font-size: 11.5px; color: var(--text-muted); }
.card__stock { font-size: 11px; }
.card__stock.in { color: var(--success); }
.card__stock.out { color: var(--danger); }
.card__add {
    margin-top: auto;
    border: 1px solid var(--brand);
    background: var(--brand);
    color: #fff;
    border-radius: 6px;
    padding: 6px;
    font-size: 12.5px;
    cursor: pointer;
    text-align: center;
}
.card__add:disabled { background: var(--border); border-color: var(--border); color: var(--text-muted); cursor: not-allowed; }

/* -- pagination ----------------------------------------------------------*/
.pagination { display: flex; gap: 6px; justify-content: center; margin: 24px 0; flex-wrap: wrap; }
.pagination a, .pagination span {
    display: inline-block;
    min-width: 34px;
    text-align: center;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    font-size: 13px;
}
.pagination .is-current { background: var(--brand); color: #fff; border-color: var(--brand); }

/* -- product page --------------------------------------------------------*/
.product-page { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 800px) { .product-page { grid-template-columns: minmax(280px, 420px) 1fr; } }
.gallery__main { aspect-ratio: 1/1; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.gallery__main img { width: 100%; height: 100%; object-fit: contain; }
.gallery__thumbs { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.gallery__thumbs img { width: 56px; height: 56px; object-fit: contain; border: 1px solid var(--border); border-radius: 6px; cursor: pointer; background: #fff; }
.gallery__thumbs img.is-active { border-color: var(--brand); }

.product-info h1 { font-size: 20px; }
.product-meta { font-size: 13px; color: var(--text-muted); margin-bottom: 10px; }
.product-price-box { display: flex; align-items: baseline; gap: 10px; margin: 14px 0; }
.product-price-box .price { font-size: 28px; font-weight: 700; }
.product-price-box .old-price { color: var(--text-muted); text-decoration: line-through; font-size: 16px; }
.buy-box { display: flex; gap: 10px; align-items: center; margin: 16px 0; flex-wrap: wrap; }
.qty-stepper { display: flex; align-items: center; border: 1px solid var(--border); border-radius: 6px; }
.qty-stepper button { border: 0; background: none; width: 32px; height: 36px; cursor: pointer; font-size: 16px; }
.qty-stepper input { width: 44px; border: 0; text-align: center; height: 36px; }
.btn { display: inline-block; border-radius: var(--radius); padding: 10px 20px; cursor: pointer; border: 1px solid var(--brand); background: var(--brand); color: #fff; font-size: 14px; text-align: center; }
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn--outline { background: var(--bg); color: var(--brand); }
.btn--block { display: block; width: 100%; }
.btn--sm { padding: 6px 12px; font-size: 13px; }

.attributes-table { width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 14px 0; }
.attributes-table td { padding: 6px 4px; border-bottom: 1px dashed var(--border); }
.attributes-table td:first-child { color: var(--text-muted); width: 45%; }

.section { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin: 16px 0; }

.stars { color: var(--star); letter-spacing: 1px; }
.review { border-bottom: 1px solid var(--border); padding: 12px 0; }
.review__meta { font-size: 12.5px; color: var(--text-muted); margin-bottom: 4px; }

.form-row { margin-bottom: 12px; }
.form-row label { display: block; font-size: 13px; margin-bottom: 4px; color: var(--text-muted); }
.form-row input, .form-row select, .form-row textarea {
    width: 100%; border: 1px solid var(--border); border-radius: 6px; padding: 9px 10px;
}
.form-error { color: var(--danger); font-size: 12.5px; margin-top: 4px; }
.alert { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 14px; font-size: 13.5px; }
.alert--error { background: #fdecec; color: var(--danger); }
.alert--success { background: #eafaf0; color: var(--success); }

/* -- cart ------------------------------------------------------------- */
.cart-item { display: flex; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border); }
.cart-item__image { width: 64px; height: 64px; flex-shrink: 0; background: var(--bg-alt); border-radius: 6px; overflow: hidden; }
.cart-item__image img { width: 100%; height: 100%; object-fit: contain; }
.cart-item__name { font-size: 13.5px; flex: 1; }
.cart-summary { display: flex; justify-content: space-between; font-size: 15px; padding: 14px 0; font-weight: 700; }

footer.site-footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 24px 0; color: var(--text-muted); font-size: 13px; }

@media (min-width: 900px) {
    .filters { display: block; }
    .filters-toggle { display: none; }
}