/* ============================================================
   MISTPRO — detail produktu (produkt.css)
   Zdroj pravdy: reference/design-kit.md + reference/mistpro-produkt.html.
   Proměnné a sdílené komponenty (tlačítka, karta, grid) jsou zde
   duplikovány 1:1 z design kitu — hodnoty jsou identické, případný
   souběh se stylem z base je proto neškodný.
   ============================================================ */

:root {
  /* ===== BARVY ===== */
  --bg: #ffffff;
  --surface: #f5f5f7;
  --surface-dark: #06070d;
  --text: #06070d;
  --text-muted: #6e6e73;
  --text-inverse: #f5f5f7;
  --accent: #0071e3;
  --accent-hover: #2997ff;
  --sale: #d70015;            /* VÝHRADNĚ peníze: slevy, %, AKCE */
  --success: #248a3d;         /* VÝHRADNĚ dostupnost (Skladem) */
  --hairline: rgba(6, 7, 13, 0.08);
  --hairline-dark: rgba(255, 255, 255, 0.14);
  --glass-dark: rgba(255, 255, 255, 0.06);

  /* ===== RADIUSY ===== */
  --radius-card: 18px;
  --radius-tile: 12px;
  --radius-pill: 980px;

  /* ===== STÍNY ===== */
  --shadow-rest: 0 1px 2px rgba(6, 7, 13, 0.04);
  --shadow-hover: 0 8px 24px rgba(6, 7, 13, 0.08);

  /* ===== SPACING (4pt) ===== */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;

  /* ===== TYPOGRAFIE ===== */
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter",
          "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --fs-h2: 22px;
  --fs-h3: 17px;
  --fs-body: 15px;
  --fs-card-title: 15px;
  --fs-price: 17px;
  --fs-price-old: 13px;
  --fs-meta: 12px;
  --lh-body: 1.47;

  /* ===== LAYOUT ===== */
  --container: 1100px;
}

/* Ceny a čísla VŽDY tabulkově */
.price, .price-old, .qty { font-variant-numeric: tabular-nums; }

/* Pomocná třída pro screenreader labely */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ===== DROBEČKOVÁ NAVIGACE ===== */
.breadcrumbs { padding: var(--sp-3) 0; font-size: var(--fs-meta); }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: var(--sp-1); margin: 0; padding: 0; }
.breadcrumbs li { display: flex; align-items: center; gap: var(--sp-1); color: var(--text-muted); }
.breadcrumbs li + li::before { content: "›"; color: var(--text-muted); }
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs [aria-current="page"] { color: var(--text); font-weight: 600; }

/* ===== LAYOUT DETAILU: mobil sloupec, desktop 2 sloupce ===== */
.product { padding-bottom: var(--sp-6); }
.product-layout { display: grid; grid-template-columns: 1fr; gap: var(--sp-5); }
@media (min-width: 768px) {
  .product-layout { grid-template-columns: 1fr 1fr; gap: var(--sp-6); align-items: start; }
}

/* ===== GALERIE ===== */
.gallery-main {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  aspect-ratio: 1 / 1;
  padding: var(--sp-4);
  overflow: hidden;
}
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.gallery-thumbs {
  display: flex; gap: var(--sp-2); margin-top: var(--sp-2);
  overflow-x: auto; scrollbar-width: none;
}
.gallery-thumbs::-webkit-scrollbar { display: none; }
.thumb {
  flex-shrink: 0; width: 72px; height: 72px;
  background: #ffffff;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-tile);
  padding: var(--sp-1);
  cursor: pointer;
}
.thumb img { width: 100%; height: 100%; object-fit: contain; }
.thumb[aria-pressed="true"] { border-color: var(--accent); border-width: 2px; }

/* ===== INFO PANEL ===== */
.product-info h1 {
  font-size: var(--fs-h2); font-weight: 700; letter-spacing: -0.01em;
  line-height: 1.25;
}
@media (min-width: 1100px) { .product-info h1 { font-size: 28px; } }
.product-brand { font-size: var(--fs-meta); color: var(--text-muted); margin-top: var(--sp-1); }

/* Cena — na detailu 28px; přeškrtnutá původní cena šedě dle kitu
   (--text-muted; červená --sale jen badge, % a slovo AKCE). */
.price-box { display: flex; align-items: baseline; gap: var(--sp-3); margin-top: var(--sp-4); flex-wrap: wrap; }
.price-box .price { font-size: 28px; font-weight: 700; color: var(--text); }
.price-box .price-old { font-size: var(--fs-price-old); font-weight: 400; color: var(--text-muted); }
.price-box .badge-sale { position: static; }
.price-note { font-size: var(--fs-meta); color: var(--text-muted); margin-top: var(--sp-1); }

/* Perex (short_desc) */
.product-perex { margin-top: var(--sp-3); color: var(--text-muted); }

/* ===== KOMPATIBILITA — štítky zařízení ===== */
.device-compat { margin-top: var(--sp-4); }
.compat-title { font-size: 13px; font-weight: 600; margin-bottom: var(--sp-2); }
.device-tags {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: var(--sp-2);
}
.device-tag {
  padding: 5px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  font-size: 13px; font-weight: 600;
  color: var(--text); background: var(--surface);
}

/* ===== DOSTUPNOST ===== */
.stock-line {
  display: flex; align-items: center; gap: 6px;
  margin-top: var(--sp-4);
  font-size: 13px; font-weight: 600; color: var(--success);
}
.stock-line .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); flex-shrink: 0; }
.stock-out { color: var(--text-muted); }

/* ===== MNOŽSTVÍ + CTA ===== */
.buy-row { display: flex; gap: var(--sp-3); margin-top: var(--sp-4); align-items: stretch; }
.qty-picker {
  display: flex; align-items: center;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  background: var(--bg);
  height: 48px; flex-shrink: 0;
}
.qty-btn {
  width: 44px; height: 100%;
  border: 0; background: transparent; color: var(--text);
  font: inherit; font-size: 18px; font-weight: 600; cursor: pointer;
  border-radius: var(--radius-pill);
}
.qty-btn:hover { color: var(--accent); }
.qty {
  width: 40px; height: 100%;
  border: 0; background: transparent;
  text-align: center; font: inherit; font-size: 15px; font-weight: 600;
  -moz-appearance: textfield; appearance: textfield;
}
.qty::-webkit-outer-spin-button, .qty::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.btn-buy { flex: 1; min-width: 0; }

/* Vyprodáno: znepřístupněné ovládání */
.btn[disabled], .qty-btn[disabled], .qty[disabled] {
  opacity: 0.5; cursor: not-allowed; pointer-events: none;
}

/* ===== TRUST SEZNAM POD CTA ===== */
.trust-list { list-style: none; margin: var(--sp-4) 0 0; padding: 0; display: grid; gap: var(--sp-2); }
.trust-list li { display: flex; align-items: center; gap: var(--sp-2); font-size: 13px; color: var(--text-muted); }
.trust-list svg { flex-shrink: 0; color: var(--accent); }
.trust-list a { font-weight: 600; }

/* ===== POPIS ===== */
.product-desc { margin-top: var(--sp-6); max-width: 720px; }
.product-desc h2 { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--sp-3); }
.product-desc p + p { margin-top: var(--sp-3); }

/* ===== BADGE (1:1 design kit) ===== */
.badge {
  position: absolute; top: var(--sp-2); left: var(--sp-2); z-index: 2;
  font-size: 12px; font-weight: 600; line-height: 1;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  color: #fff;
}
.badge-sale { background: var(--sale); }
.badge-info { background: var(--accent); }

/* ===== TLAČÍTKA (1:1 design kit) ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px; padding: 0 var(--sp-5);
  border-radius: var(--radius-pill);
  font: inherit; font-size: 14px; font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer; text-decoration: none;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-lg { height: 48px; padding: 0 var(--sp-6); font-size: 15px; }
.btn-card { width: 100%; margin-top: var(--sp-2); }

/* ===== SOUVISEJÍCÍ PRODUKTY — karta + grid (1:1 design kit) ===== */
.cross-sell { margin-top: var(--sp-7); }
.cross-sell h2 { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--sp-4); }
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
@media (min-width: 480px)  { .grid { gap: var(--sp-3); } }
@media (min-width: 768px)  { .grid { grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); } }
@media (min-width: 1100px) { .grid { grid-template-columns: repeat(4, 1fr); } }

.card {
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-rest);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .15s ease, box-shadow .15s ease;
}
@media (hover: hover) {
  .card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
}
.card-media {
  position: relative; display: block;
  background: #ffffff;
  aspect-ratio: 1 / 1;
  padding: var(--sp-3);
}
.card-media img { width: 100%; height: 100%; object-fit: contain; }
.card-body {
  padding: var(--sp-3) var(--sp-3) var(--sp-4);
  display: flex; flex-direction: column; gap: var(--sp-1);
  flex: 1;
}
.card-cat { font-size: var(--fs-meta); color: var(--text-muted); min-height: 1em; }
.card-title {
  font-size: var(--fs-card-title); font-weight: 600; line-height: 1.35;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: calc(2 * 1.35em);
}
.card-title a { color: var(--text); }
.card-title a:hover { color: var(--accent); text-decoration: none; }
.card-stock {
  font-size: var(--fs-meta); font-weight: 500; color: var(--success);
  display: flex; align-items: center; gap: 6px;
}
.card-stock .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success); flex-shrink: 0;
}
.card-stock-out { color: var(--text-muted); }
.card-price-row {
  display: flex; align-items: baseline; gap: var(--sp-2);
  margin-top: auto; padding-top: var(--sp-1);
}
.card .price { font-size: var(--fs-price); font-weight: 700; color: var(--text); }
.card .price-old { font-size: var(--fs-price-old); font-weight: 400; color: var(--text-muted); }

/* Vyprodáno v mřížce: foto ztlumené (design kit — prázdné stavy) */
.card-out .card-media img { opacity: 0.55; }