/* ===== Reset mínimo y variables ===== */
:root {
  --bg: #0f1115;
  --card: #171a21;
  --text: #e6e6e6;
  --muted: #a0a6b0;
  --primary: #5fd17f;
  --danger: #e05d5d;
  --border: #2a2f3a;
  --shadow: 0 8px 24px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg); color: var(--text); line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
button { font: inherit; cursor: pointer; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.skip-link { position: absolute; left: -9999px; top: auto; }
.skip-link:focus { left: 1rem; top: 1rem; background: #000; color: #fff; padding: .5rem .75rem; border-radius: .5rem; }

/* ===== Layout ===== */
.container { width: min(1100px, 92%); margin-inline: auto; }
.header-grid { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: center; padding: 1rem 0; }
.footer-grid { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 0; border-top: 1px solid var(--border); }

.site-header { position: sticky; top: 0; z-index: 10; background: rgba(15,17,21,.85); backdrop-filter: saturate(140%) blur(6px); border-bottom: 1px solid var(--border); }
.logo { font-weight: 700; letter-spacing: .3px; }

.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); padding: .5rem .75rem; border-radius: .5rem; color: var(--text); }
.site-nav ul { list-style: none; display: flex; gap: 1rem; padding: 0; margin: 0; }
.site-nav .cart-toggle { background: var(--primary); color: #0a0d10; border: 0; padding: .5rem .8rem; border-radius: .5rem; }

.breadcrumbs { font-size: .9rem; color: var(--muted); padding: .75rem 0; }
.breadcrumbs ol { display: flex; gap: .5rem; list-style: none; padding: 0; margin: 0; }
.breadcrumbs li+li::before { content: '\203A'; margin: 0 .5rem; color: var(--muted); }

.page-title { margin: 1rem 0 1.25rem; font-size: clamp(1.4rem, 2vw + .8rem, 2rem); }

.cart-layout { display: grid; grid-template-columns: 1fr 320px; gap: 1.25rem; align-items: start; }

.cart-table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: .8rem; overflow: hidden; box-shadow: var(--shadow); }
.cart-table th, .cart-table td { padding: .9rem; border-bottom: 1px solid var(--border); text-align: left; }
.cart-table thead th { background: #12151b; font-weight: 600; }
.cart-table tbody tr:last-child td { border-bottom: 0; }
.prod { display: grid; grid-template-columns: 64px 1fr; gap: .75rem; align-items: center; }
.prod-thumb { width: 64px; height: 64px; object-fit: cover; border-radius: .5rem; border: 1px solid var(--border); }
.prod-name { font-weight: 600; }
.price, .subtotal { white-space: nowrap; }

.qty { display: inline-flex; align-items: center; gap: .4rem; background: #0e1116; border: 1px solid var(--border); padding: .25rem; border-radius: .5rem; }
.qty-btn { background: #191e27; color: var(--text); border: 1px solid var(--border); width: 28px; height: 28px; border-radius: .4rem; }
.qty-input { width: 54px; text-align: center; background: transparent; color: var(--text); border: 0; outline: none; }

.cart-actions { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1rem; }

.cart-summary { position: sticky; top: calc(64px + 1rem); background: var(--card); border: 1px solid var(--border); border-radius: .8rem; padding: 1rem; box-shadow: var(--shadow); }
.cart-summary h2 { margin: 0 0 .75rem; font-size: 1.05rem; }
.totals { margin: 0; }
.totals .row { display: flex; justify-content: space-between; padding: .4rem 0; border-bottom: 1px dashed var(--border); }
.totals .row:last-child { border-bottom: 0; }
.totals .total { font-weight: 700; font-size: 1.1rem; }

.site-footer { color: var(--muted); }
.muted { color: var(--muted); }
.xs { font-size: .85rem; }
.w-100 { width: 100%; }

/* Botones y enlaces */
.btn { background: var(--primary); color: #0a0d10; border: 0; padding: .7rem 1rem; border-radius: .6rem; box-shadow: var(--shadow); }
.btn:hover { filter: brightness(1.06); }
.btn.outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.link { background: transparent; border: 0; color: #7fb5ff; }
.link.danger { color: var(--danger); }
.icon-btn { background: transparent; border: 0; color: var(--text); font-size: 1.1rem; }

/* Drawer de carrito (mobile) */
.cart-drawer { position: fixed; inset: 0; display: grid; grid-template-columns: 1fr; }
.cart-drawer[hidden] { display: none; }
.cart-drawer__backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.5); border: 0; }
.cart-drawer__panel { position: relative; margin-left: auto; height: 100%; width: min(440px, 92%); background: var(--card); border-left: 1px solid var(--border); box-shadow: var(--shadow); display: flex; flex-direction: column; }
.cart-drawer__header, .cart-drawer__footer { padding: .9rem; border-bottom: 1px solid var(--border); }
.cart-drawer__footer { border-bottom: 0; border-top: 1px solid var(--border); }
.cart-drawer__body { padding: .9rem; overflow: auto; flex: 1; }

/* Responsivo */
@media (max-width: 860px) {
  .cart-layout { grid-template-columns: 1fr; }
  .cart-summary { position: static; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .site-nav[hidden] { display: none; }
  .site-nav { background: var(--card); position: absolute; left: 0; right: 0; top: 100%; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
  .site-nav .nav-list { flex-direction: column; padding: .8rem; }
}