/* ===================================================================
   RIVO — инженерный минимализм.
   Принципы: воздух, белый/светло-серый фон, графитовый текст,
   бирюзовый (#00A3B4 — цвет из официального логотипа) только как акцент.
   =================================================================== */

:root {
  --rivo-teal: #00a3b4;
  --rivo-teal-dark: #00838f;
  --rivo-teal-tint: #e3f4f6;
  --ink: #1f2429;
  --ink-soft: #4b5563;
  --page: #ffffff;
  --rivo-paper: #fbfaf7;
  --mist: #f4f6f7;
  --line: #e4e8ea;
  --rivo-brass: #a5784a;
  --rivo-shadow-soft: 0 18px 44px rgba(31, 36, 41, 0.07);
  --success: #1e8a5f;
  --warn: #b5541c;
  --radius: 10px;
  --container-w: 1180px;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, "Segoe UI", Arial, sans-serif;
  margin: 0;
  color: var(--ink);
  background: var(--rivo-paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

a { color: var(--rivo-teal-dark); }
picture { display: contents; }

/* ---------- Header ---------- */
.site-header { background: var(--rivo-paper); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 16px; }
.logo { display: flex; align-items: center; text-decoration: none; }
.logo img { width: auto; height: 28px; display: block; }
.main-nav { display: flex; align-items: center; gap: 18px; }
.main-nav a { text-decoration: none; color: var(--ink-soft); font-size: 15px; padding: 10px 2px; display: inline-flex; align-items: center; }
.main-nav a:hover { color: var(--ink); }
.main-nav .cart-link { color: var(--ink); font-weight: 600; }
.cart-link-mobile { display: none; }
.nav-toggle-input { display: none; }
.nav-toggle-btn { display: none; }

/* ---------- Layout helpers ---------- */
main.container { padding-top: 0; padding-bottom: 40px; }
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { position: relative; max-width: 640px; margin-bottom: 32px; }
.section-head::after {
  content: "";
  display: block;
  width: 56px;
  height: 2px;
  margin-top: 18px;
  background: var(--rivo-teal);
}
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--rivo-teal-dark); margin-bottom: 10px; }
.section h2 { font-size: 30px; margin: 0 0 8px; letter-spacing: -0.01em; }
.section .lead { color: var(--ink-soft); font-size: 16px; margin: 0; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  margin-top: 24px;
  border-radius: 20px;
  background: var(--mist);
  box-shadow: var(--rivo-shadow-soft);
  padding: 64px 0 56px;
}
.hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 30%;
  width: 1px;
  height: 100%;
  background: rgba(0, 131, 143, 0.12);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero-grid { position: relative; z-index: 1; }
.hero-eyebrow { color: var(--rivo-teal-dark); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; font-size: 13px; margin-bottom: 14px; }
.hero h1 { font-size: 44px; line-height: 1.12; margin: 0 0 18px; letter-spacing: -0.01em; }
.hero p.hero-sub { font-size: 17px; color: var(--ink-soft); margin: 0 0 28px; max-width: 480px; }
.hero-points { list-style: none; margin: 0 0 32px; padding: 0; display: grid; gap: 10px; }
.hero-points li { font-size: 15px; color: var(--ink); padding-left: 26px; position: relative; }
.hero-points li::before { content: "✓"; position: absolute; left: 0; color: var(--rivo-teal-dark); font-weight: 700; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-media {
  position: relative;
  min-height: 360px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 16px 32px rgba(31, 36, 41, 0.08);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-media img { max-width: 100%; max-height: 480px; object-fit: contain; }
.hero-media-index {
  position: absolute;
  top: 18px;
  left: 20px;
  color: var(--rivo-teal-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}

/* ---------- Buttons ---------- */
.btn-primary, .btn-secondary {
  display: inline-block; text-decoration: none; font-size: 15px; font-weight: 600;
  padding: 13px 24px; border-radius: 8px; border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--rivo-teal); color: #fff; }
.btn-primary:hover { background: var(--rivo-teal-dark); }
.btn-secondary { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--ink-soft); }
button.btn-primary { font-family: inherit; }

/* ---------- Directions (3 lines) ---------- */
.directions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.direction-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.direction-card-media {
  height: 168px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 26px;
  background: var(--mist);
  border-bottom: 1px solid var(--line);
}
.direction-card-media img { width: 100%; height: 100%; object-fit: contain; }
.direction-card-body { padding: 24px; }
.direction-card .direction-name { font-size: 12px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--rivo-teal-dark); margin-bottom: 10px; }
.direction-card h3 { font-size: 20px; margin: 0 0 10px; }
.direction-card p { color: var(--ink-soft); font-size: 14.5px; margin: 0 0 18px; }
.direction-card a.link-arrow { text-decoration: none; font-weight: 600; font-size: 14px; color: var(--ink); }
.direction-card a.link-arrow::after { content: " →"; color: var(--rivo-teal-dark); }

/* ---------- Why RIVO ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-item { padding: 4px 0; }
.why-item .why-num { font-size: 13px; color: var(--rivo-teal-dark); font-weight: 700; margin-bottom: 8px; }
.why-item h4 { font-size: 16.5px; margin: 0 0 8px; }
.why-item p { font-size: 14px; color: var(--ink-soft); margin: 0; }

/* ---------- Featured product (Set A on home) ---------- */
.featured-product { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 40px; align-items: center; background: var(--mist); border-radius: var(--radius); padding: 40px; }
.featured-product img { width: 100%; max-height: 420px; object-fit: contain; }
.featured-info .price { font-size: 30px; font-weight: 700; color: var(--ink); }
.featured-info h3 { font-size: 26px; margin: 0 0 6px; }
.featured-info .subtitle { color: var(--ink-soft); font-size: 15px; margin: 0 0 20px; }
.spec-chips { display: flex; gap: 10px; flex-wrap: wrap; margin: 0 0 24px; }
.spec-chip { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px; font-size: 13.5px; color: var(--ink); }

/* ---------- Kits (Set + Touch) ---------- */
.kits-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
.kit-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; text-align: center; background: #fff; text-decoration: none; color: inherit; display: block; }
.kit-card img { max-width: 100%; height: 150px; object-fit: contain; margin-bottom: 14px; }
.kit-card h4 { font-size: 15px; margin: 0 0 6px; color: var(--ink); }
.kit-card .price { font-weight: 700; color: var(--ink); font-size: 15px; }

/* ---------- Trust block ---------- */
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.trust-item { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 20px; background: #fff; }
.trust-icon {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 40px; height: 28px; padding: 0 10px; margin-bottom: 14px;
    border-radius: 6px; background: var(--rivo-teal-tint); color: var(--rivo-teal);
    font-size: 13px; font-weight: 700; letter-spacing: 0.02em;
}
.trust-item h4 { font-size: 15.5px; margin: 0 0 8px; }
.trust-item p { font-size: 13.5px; color: var(--ink-soft); margin: 0; }

/* ---------- Product grid (category pages) ---------- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; margin: 20px 0; }
.category-head { max-width: none; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.category-head h1 { margin: 0; font-size: clamp(32px, 4vw, 46px); line-height: 1.08; letter-spacing: -0.03em; }
.category-head::after { width: 74px; margin-top: 20px; }
.product-card {
  position: relative;
  display: flex;
  min-height: 420px;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  text-align: left;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.product-card:hover { transform: translateY(-3px); border-color: rgba(0, 163, 180, .55); box-shadow: var(--rivo-shadow-soft); }
.product-card-media {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: var(--mist);
  border-bottom: 1px solid var(--line);
}
.product-card-media img { width: 100%; height: 100%; max-width: 100%; object-fit: contain; }
.product-card h3 { min-height: 43px; padding: 18px 18px 0; font-size: 15px; line-height: 1.35; margin: 0 0 6px; }
.product-card h3 a { text-decoration: none; color: var(--ink); }
.product-card-meta { padding: 0 18px; }
.product-card .price { padding: 0 18px; margin: 12px 0 0; font-weight: 700; color: var(--ink); }
.product-card > .stock-badge { align-self: flex-start; margin: 10px 18px 0; }
.product-card-cta { margin-top: auto; padding: 16px 18px 18px; }
.product-card-cta .btn-primary, .product-card-cta .btn-secondary { width: 100%; text-align: center; }
.product-card--touch .product-card-media { background: var(--rivo-paper); }

/* ---------- Touch series grouping ---------- */
.series-block { margin-bottom: 60px; }
.series-block + .series-block { padding-top: 48px; border-top: 1px solid var(--line); }
.series-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.series-index { color: var(--rivo-teal-dark); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.series-head h2 { font-size: 28px; margin: 0; letter-spacing: -0.025em; }
.series-head .series-tagline { color: var(--ink-soft); font-size: 14px; }
.swatch-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 18px 0 22px; }
.swatch { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px 6px 6px; text-decoration: none; color: var(--ink); font-size: 13.5px; background: #fff; }
.swatch img { width: 34px; height: 26px; object-fit: cover; border-radius: 4px; border: 1px solid var(--line); }
.swatch.active { border-color: var(--rivo-teal); }

/* ---------- Product detail (Set A card) ---------- */
.product-top { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; margin: 32px 0 8px; }
.product-gallery-main {
  position: relative;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--rivo-shadow-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 38px;
  min-height: 520px;
}
.product-gallery-main::after {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(0, 131, 143, 0.12);
  border-radius: 14px;
  pointer-events: none;
}
.gallery-label {
  position: absolute;
  z-index: 1;
  top: 22px;
  left: 24px;
  color: var(--rivo-teal-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}
.product-gallery-main img { width: 100%; height: 440px; max-width: 100%; max-height: 460px; object-fit: contain; position: relative; z-index: 1; }
.product-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 14px; }
.product-gallery img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; background: var(--rivo-paper); border: 1px solid var(--line); border-radius: 12px; padding: 10px; cursor: pointer; box-sizing: border-box; transition: border-color .18s ease, transform .18s ease; }
.product-gallery img:hover { transform: translateY(-2px); }
.product-gallery img:hover { border-color: var(--rivo-teal); }
.product-videos { margin-top: 12px; }
.product-videos video { border-radius: 8px; border: 1px solid var(--line); background: var(--mist); }
.product-info { position: relative; align-self: start; padding: 34px; background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--rivo-shadow-soft); }
.product-info::before { content: ""; display: block; width: 72px; height: 3px; margin-bottom: 24px; border-radius: 999px; background: var(--rivo-teal); }
.product-info .kicker { color: var(--rivo-teal-dark); font-weight: 700; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
.product-info h1 { font-size: 38px; line-height: 1.04; margin: 0 0 16px; letter-spacing: -0.035em; }
.product-meta-row { display: flex; flex-wrap: wrap; gap: 10px 18px; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; }
.product-meta-row span + span { position: relative; padding-left: 18px; }
.product-meta-row span + span::before { content: ""; position: absolute; left: 0; top: 50%; width: 4px; height: 4px; border-radius: 50%; background: var(--rivo-teal); transform: translateY(-50%); }
.product-info .fit-for { color: var(--ink-soft); font-size: 15px; margin: 0 0 18px; }
.price-row { display: flex; align-items: baseline; flex-wrap: wrap; gap: 14px; margin: 24px 0 18px; }
.price-row .price { font-size: 38px; font-weight: 750; color: var(--ink); letter-spacing: -0.04em; }
.stock-badge { display: inline-block; padding: 5px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.stock-badge.ok { background: #e7f5ef; color: var(--success); }
.stock-badge.low { background: #fdf1e6; color: var(--warn); }
.stock-badge.out { background: #f3f4f5; color: var(--ink-soft); }
.key-facts { list-style: none; margin: 0 0 26px; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 18px 0; }
.key-facts li { font-size: 14px; color: var(--ink); display: flex; gap: 8px; }
.key-facts li .fk-label { color: var(--ink-soft); min-width: 92px; }
.buy-form { display: flex; gap: 12px; align-items: center; margin-top: 8px; }
.buy-form input[type=number] { width: 70px; padding: 12px; border: 1px solid var(--line); border-radius: 8px; }

.description { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--ink); font-size: 15px; }
.product-sections { margin-top: 58px; display: grid; gap: 0; }
.pd-block { padding: 34px 0; border-top: 1px solid var(--line); }
.pd-block h2 { font-size: 28px; line-height: 1.1; margin: 0 0 20px; letter-spacing: -0.025em; }
.pd-list { margin: 0; padding-left: 20px; color: var(--ink); font-size: 14.5px; display: grid; gap: 8px; }
.pd-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.spec-table td { padding: 10px 0; border-bottom: 1px solid var(--line); }
.spec-table td:first-child { color: var(--ink-soft); width: 45%; }
.doc-links { display: flex; gap: 14px; flex-wrap: wrap; }
.doc-link { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 8px; padding: 14px 18px; text-decoration: none; color: var(--ink); font-size: 14.5px; font-weight: 600; background: #fff; }
.doc-link:hover { border-color: var(--rivo-teal); }
.compat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.compat-card { min-height: 170px; border: 1px solid var(--line); border-radius: 14px; padding: 16px; text-align: center; text-decoration: none; color: var(--ink); background: #fff; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.compat-card:hover { transform: translateY(-2px); border-color: rgba(0, 163, 180, .55); box-shadow: var(--rivo-shadow-soft); }
.compat-card img { width: 100%; height: 100px; object-fit: contain; margin-bottom: 10px; background: var(--rivo-paper); border-radius: 8px; }
.compat-card .name { font-size: 13px; }
.note-unconfirmed { font-size: 13px; color: var(--ink-soft); background: var(--mist); border-radius: 8px; padding: 10px 14px; margin-top: 10px; }

.description { color: var(--ink); font-size: 15px; }

/* ---------- Cart / forms / messages (unchanged base) ---------- */
.cart-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.cart-table th, .cart-table td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; }
.messages { list-style: none; padding: 0; }
.message { padding: 10px 16px; border-radius: 6px; margin: 10px 0; }
.message-warning { background: #fff3cd; }
.message-error { background: #f8d7da; }
.message-info { background: #d1ecf1; }
form label { display: block; margin: 10px 0; }
form input, form textarea { width: 100%; max-width: 400px; padding: 8px; box-sizing: border-box; }

.site-footer { padding: 44px 0 20px; color: var(--ink-soft); margin-top: 40px; border-top: 1px solid var(--line); background: var(--mist); }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.footer-col { font-size: 14px; }
.footer-col p { margin: 0 0 8px; }
.footer-col a { color: var(--ink); text-decoration: none; }
.footer-col a:hover { color: var(--rivo-teal-dark); }
.footer-title { font-weight: 700; color: var(--ink); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 12px; }
.footer-note { font-size: 12.5px; color: var(--ink-soft); line-height: 1.5; }
.footer-copy { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12.5px; text-align: center; }
.categories { display: flex; gap: 12px; flex-wrap: wrap; margin: 20px 0; }
.category-card { padding: 10px 16px; background: #fff; border: 1px solid var(--line); border-radius: 6px; text-decoration: none; color: var(--ink); }

/* ---------- Buy block / disabled cart button / stock request ---------- */
.buy-block { margin-top: 8px; display: flex; flex-direction: column; gap: 10px; }
.btn-disabled, .btn-disabled:hover { background: var(--mist); color: var(--ink-soft); border-color: var(--line); cursor: not-allowed; }
.stock-request-hint { font-size: 13.5px; color: var(--ink-soft); margin: 0; }
.stock-request-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0; }
.stock-request-form input { width: auto; flex: 1 1 160px; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }
.doc-link-inline { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--rivo-teal-dark); font-size: 14px; font-weight: 600; }
.btn-small { padding: 9px 16px; font-size: 13.5px; }
.product-card-cta { margin-top: 12px; }
.product-card-cta form { margin: 0; }
.product-card-media { display: block; }
.product-card-meta { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--ink-soft); margin: 4px 0; }
.stock-badge-small { font-size: 11.5px; padding: 3px 9px; margin-top: 8px; display: inline-block; }

/* ---------- Catalog page: filters ---------- */
.catalog-filters { background: var(--mist); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin: 20px 0 8px; display: grid; gap: 14px; }
.filter-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.filter-search { flex: 1 1 260px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 8px; font-size: 14.5px; }
.filter-field { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--ink-soft); }
.filter-field select, .filter-field input { padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; min-width: 120px; background: #fff; }
.filter-price { width: 90px; }
.link-reset { align-self: center; font-size: 13.5px; color: var(--ink-soft); text-decoration: underline; }
.catalog-count { color: var(--ink-soft); font-size: 13.5px; margin: 6px 0 0; }

/* ---------- Info page (доставка/оплата/возврат/гарантия) ---------- */
.info-page { display: grid; gap: 36px; margin-top: 28px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .directions-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-product { grid-template-columns: 1fr; padding: 24px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .product-top { grid-template-columns: 1fr; gap: 24px; }
  .product-gallery-main { min-height: 440px; }
  .product-info { padding: 28px; }
  .product-info h1 { font-size: 32px; }
  .pd-two-col { grid-template-columns: 1fr; }
  .key-facts { grid-template-columns: 1fr; }
  .section { padding: 40px 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* Компактная мобильная шапка: логотип + гамбургер в один ряд,
   меню — выпадающая панель, а не второй ряд навигации (п.5 ТЗ). */
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .header-inner { padding: 10px 16px; flex-wrap: nowrap; }

  .hero { margin-top: 16px; border-radius: 16px; padding: 34px 0 28px; }
  .hero::after { display: none; }
  .hero-media { min-height: 300px; padding: 20px; border-radius: 14px; }
  .hero-media img { max-height: 320px; }
  .hero-media-index { top: 14px; left: 16px; font-size: 10px; }
  .section { padding: 42px 0; }
  .section-head { margin-bottom: 22px; }
  .section-head::after { margin-top: 14px; }
  .direction-card-media { height: 140px; padding: 16px 24px; }
  .direction-card-body { padding: 20px; }
  .direction-card h3 { font-size: 19px; }
  .series-block { margin-bottom: 44px; }
  .series-block + .series-block { padding-top: 36px; }
  .series-head { margin-bottom: 12px; }
  .series-head h2 { font-size: 24px; }
  .category-head { margin-top: 24px !important; padding-bottom: 16px; }
  .category-head h1 { font-size: 30px; }
  .product-grid { gap: 12px; margin: 16px 0; }
  .product-card { min-height: 380px; }
  .product-card-media { height: 180px; padding: 18px; }
  .product-card h3 { min-height: 43px; padding: 15px 16px 0; }
  .product-card-meta { padding: 0 16px; }
  .product-card .price { padding: 0 16px; margin-top: 10px; }
  .product-card > .stock-badge { margin: 8px 16px 0; font-size: 12px; }
  .product-card-cta { padding: 12px 16px 16px; }

  .cart-link-desktop { display: none; }
  .cart-link-mobile {
    display: inline-flex; align-items: center; justify-content: center;
    min-height: 44px; padding: 0 12px; margin-left: auto; order: 2;
    font-size: 14px; font-weight: 600; color: var(--ink); text-decoration: none;
  }

  .nav-toggle-btn {
    display: flex; flex-direction: column; justify-content: center; gap: 4px;
    width: 44px; height: 44px; order: 3; cursor: pointer; flex-shrink: 0;
  }
  .nav-toggle-btn span { display: block; height: 2px; width: 22px; background: var(--ink); border-radius: 2px; }

  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch;
    gap: 0; padding: 6px 16px 12px; box-shadow: 0 8px 16px rgba(0,0,0,0.06);
    max-height: 0; overflow: hidden; opacity: 0; transition: max-height .2s ease, opacity .2s ease;
  }
  .main-nav a { min-height: 44px; padding: 0 4px; border-bottom: 1px solid var(--line); font-size: 15.5px; }
  .main-nav a:last-child { border-bottom: none; }

  .nav-toggle-input:checked ~ .main-nav { max-height: 400px; opacity: 1; }

  .site-header { position: sticky; }
  .header-inner { position: relative; }
}

@media (max-width: 480px) {
  .why-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .hero { padding: 30px 0 24px; }
  .hero h1 { font-size: 26px; }
  .hero-media { min-height: 280px; }
  .hero-media img { max-height: 290px; }
  .product-gallery-main { min-height: 360px; padding: 24px; border-radius: 16px; }
  .product-gallery-main::after { inset: 14px; border-radius: 10px; }
  .product-gallery-main img { height: 280px; }
  .gallery-label { top: 16px; left: 18px; font-size: 10px; }
  .product-gallery { gap: 8px; }
  .product-gallery img { padding: 6px; border-radius: 8px; }
  .product-info { padding: 24px; border-radius: 16px; }
  .product-info::before { margin-bottom: 18px; }
  .product-info h1 { font-size: 28px; }
  .product-meta-row { display: grid; gap: 7px; }
  .product-meta-row span + span { padding-left: 0; }
  .product-meta-row span + span::before { display: none; }
  .pd-block h2 { font-size: 24px; }
  .product-info { padding: 24px; border-radius: 16px; }
  .product-info::before { margin-bottom: 18px; }
  .product-info h1 { font-size: 28px; }
  .product-meta-row { display: grid; gap: 7px; }
  .product-meta-row span + span { padding-left: 0; }
  .product-meta-row span + span::before { display: none; }
  .pd-block h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .price-row { flex-wrap: wrap; }
  .buy-form { flex-wrap: wrap; }
  .buy-form input[type=number] { min-height: 44px; }
  .buy-form button, .btn-primary, .btn-secondary { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
  .filter-row-controls .filter-field { flex: 1 1 45%; }
}