/* ============================================
   Base — Fase 0 (se pule el diseño más adelante)
   ============================================ */
:root {
  --ink: #111213;
  --ink-60: rgba(17, 18, 19, 0.6);
  --ink-10: rgba(17, 18, 19, 0.1);
  --ink-05: rgba(17, 18, 19, 0.05);
  --accent: #1e4d3b;
  --accent-hover: #173c2e;
  --bg: #ffffff;
  --page-max: 72rem;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1; }

a { color: inherit; }

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

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

.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) {
  .container { padding: 0 1.5rem; }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ink-10);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}
.logo {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.site-nav a {
  font-size: 0.875rem;
  color: var(--ink-60);
  text-decoration: none;
  transition: color 0.15s;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a.nav-cart {
  color: var(--ink);
  font-weight: 500;
}
.site-nav a.nav-cart:hover { color: var(--accent); }
.site-nav a[aria-current="page"] { color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--ink-10);
  margin-top: 4rem;
}
.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--ink-60);
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}
.site-footer a {
  text-decoration: none;
}
.site-footer a:hover { color: var(--ink); }
@media (min-width: 640px) {
  .site-footer .container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ---------- Hero ---------- */
.hero {
  border-bottom: 1px solid var(--ink-10);
  padding: 5rem 0;
}
.hero h1 {
  margin: 0;
  max-width: 40rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.hero p {
  margin: 1rem 0 0;
  max-width: 34rem;
  font-size: 1.125rem;
  color: var(--ink-60);
}
.btn {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}
.btn:hover { background: var(--accent-hover); }

/* ---------- Grid de productos ---------- */
.section { padding: 4rem 0; }
.section h2 {
  margin: 0 0 2rem;
  font-size: 1.25rem;
  font-weight: 600;
}
.product-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem 1.5rem;
}
@media (min-width: 640px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
.product-card a {
  text-decoration: none;
  display: block;
}
.product-card .thumb {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--ink-05);
}
.product-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.product-card a:hover .thumb img { transform: scale(1.03); }
.product-card h3 {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  font-weight: 500;
}
.product-card .price {
  margin: 0.25rem 0 0;
  font-size: 0.875rem;
  color: var(--ink-60);
}
.product-card .price del {
  margin-left: 0.4rem;
  color: var(--ink-60);
  opacity: 0.7;
}

/* ---------- Estados ---------- */
.notice {
  color: var(--ink-60);
}
.notice code {
  background: var(--ink-05);
  padding: 0.1em 0.35em;
  font-size: 0.9em;
}

/* ============================================
   Fase 1 — Catálogo
   ============================================ */
.page-title {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ---------- Listado ---------- */
.listado-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}
.filtros {
  display: flex;
  gap: 1rem;
}
.filtros label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--ink-60);
}
.filtros select {
  font: inherit;
  font-size: 0.875rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--ink-10);
  background: #fff;
  color: var(--ink);
}

/* ---------- Ficha de producto ---------- */
.product-layout {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 768px) {
  .product-layout {
    grid-template-columns: 1.1fr 1fr;
    align-items: start;
  }
}
.gallery-main {
  aspect-ratio: 1;
  background: var(--ink-05);
  overflow: hidden;
}
.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-thumbs {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.gallery-thumbs button {
  width: 4.5rem;
  aspect-ratio: 1;
  padding: 0;
  border: 1px solid var(--ink-10);
  background: var(--ink-05);
  cursor: pointer;
  overflow: hidden;
}
.gallery-thumbs button.active {
  border-color: var(--ink);
}
.gallery-thumbs img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-price {
  font-size: 1.25rem;
  font-weight: 500;
  margin: 1rem 0 0.25rem;
}
.product-price del {
  margin-left: 0.5rem;
  font-size: 1rem;
  color: var(--ink-60);
  font-weight: 400;
}
.stock {
  font-size: 0.875rem;
  margin: 0 0 1.5rem;
}
.stock.disponible { color: var(--accent); }
.stock.agotado { color: #a03030; }

.option-group {
  border: none;
  padding: 0;
  margin: 0 0 1.25rem;
}
.option-group legend {
  font-size: 0.75rem;
  color: var(--ink-60);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0;
  margin-bottom: 0.5rem;
}
.option-values {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.option-btn {
  font: inherit;
  font-size: 0.875rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--ink-10);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s;
}
.option-btn:hover { border-color: var(--ink); }
.option-btn.selected {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}
.option-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  text-decoration: line-through;
}
.btn-block {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  text-align: center;
}
.btn:disabled {
  background: var(--ink-10);
  color: var(--ink-60);
  cursor: not-allowed;
}
.product-description {
  margin-top: 2rem;
  color: var(--ink-60);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* ============================================
   Fase 2 — Carrito y mini-cart
   ============================================ */
.link-btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-size: 0.8rem;
  color: var(--ink-60);
  text-decoration: underline;
  cursor: pointer;
}
.link-btn:hover { color: var(--ink); }

.qty-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--ink-10);
  margin: 0.5rem 0;
}
.qty-stepper button {
  font: inherit;
  width: 2rem;
  height: 2rem;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--ink);
}
.qty-stepper button:disabled { opacity: 0.35; cursor: not-allowed; }
.qty-stepper span {
  min-width: 2rem;
  text-align: center;
  font-size: 0.9rem;
}

/* ---------- Página de carrito ---------- */
.cart-layout {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}
@media (min-width: 768px) {
  .cart-layout {
    grid-template-columns: 1.6fr 1fr;
    align-items: start;
  }
}
.cart-line {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--ink-10);
}
.cart-line:first-child { padding-top: 0; }
.cart-line.unavailable { opacity: 0.7; }
.cart-thumb {
  display: block;
  aspect-ratio: 1;
  background: var(--ink-05);
  overflow: hidden;
}
.cart-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cart-title { margin: 0; font-weight: 500; font-size: 0.95rem; }
.cart-title a { text-decoration: none; }
.cart-title a:hover { text-decoration: underline; }
.cart-variant, .cart-unit {
  margin: 0.15rem 0 0;
  font-size: 0.8rem;
  color: var(--ink-60);
}
.cart-line-total {
  margin: 0;
  font-weight: 500;
  font-size: 0.95rem;
  text-align: right;
}
.cart-summary {
  border: 1px solid var(--ink-10);
  padding: 1.5rem;
  position: sticky;
  top: 5rem;
}
.cart-subtotal {
  display: flex;
  justify-content: space-between;
  margin: 0;
  font-size: 1rem;
}
.cart-note {
  margin: 0.5rem 0 1.25rem;
  font-size: 0.8rem;
  color: var(--ink-60);
}

/* ---------- Mini-cart ---------- */
.minicart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 18, 19, 0.4);
  z-index: 50;
}
.minicart {
  position: fixed;
  top: 0;
  right: 0;
  height: 100dvh;
  width: min(26rem, 100vw);
  background: #fff;
  z-index: 51;
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 24px rgba(17, 18, 19, 0.12);
}
body.minicart-open { overflow: hidden; }
.minicart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--ink-10);
}
.minicart-head h2 { margin: 0; font-size: 1rem; }
.minicart-head button {
  font-size: 1.5rem;
  line-height: 1;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--ink-60);
}
.minicart-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
}
.minicart-line {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--ink-10);
}
.minicart-line.unavailable { grid-template-columns: 1fr; opacity: 0.7; }
.minicart-thumb {
  aspect-ratio: 1;
  background: var(--ink-05);
  overflow: hidden;
}
.minicart-thumb img { width: 100%; height: 100%; object-fit: cover; }
.minicart-title { margin: 0; font-size: 0.875rem; font-weight: 500; }
.minicart-variant { margin: 0.1rem 0 0; font-size: 0.75rem; color: var(--ink-60); }
.minicart-price { margin: 0; font-size: 0.875rem; font-weight: 500; text-align: right; }
.minicart-line-end {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
}
.minicart-foot {
  border-top: 1px solid var(--ink-10);
  padding: 1rem 1.25rem 1.25rem;
}
.minicart-subtotal {
  display: flex;
  justify-content: space-between;
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
}

/* ============================================
   Fase 3 — Checkout
   ============================================ */
.checkout-layout {
  display: grid;
  gap: 2.5rem;
  margin-top: 2rem;
}
@media (min-width: 860px) {
  .checkout-layout {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }
}
.form-section-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-60);
  margin: 2rem 0 0.75rem;
}
#checkout-form .form-section-title:first-child { margin-top: 0; }
.field {
  display: block;
  margin-bottom: 0.9rem;
}
.field span {
  display: block;
  font-size: 0.8rem;
  color: var(--ink-60);
  margin-bottom: 0.3rem;
}
.field input, .field select {
  width: 100%;
  font: inherit;
  font-size: 0.95rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--ink-10);
  background: #fff;
  color: var(--ink);
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}
#payment-element { margin: 0.5rem 0 1rem; }
.checkout-error {
  color: #a03030;
  font-size: 0.875rem;
  margin: 0.75rem 0;
}
.checkout-summary {
  border: 1px solid var(--ink-10);
  padding: 1.5rem;
  position: sticky;
  top: 5rem;
}
.checkout-summary .form-section-title { margin-top: 0; }
.summary-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
  padding: 0.4rem 0;
}
.summary-line.muted { color: var(--ink-60); }
.summary-line.total {
  border-top: 1px solid var(--ink-10);
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  font-weight: 600;
  font-size: 1rem;
}
.gracias-resumen { margin: 2rem 0; max-width: 28rem; position: static; }

/* ============================================
   Fase 4 — Admin
   ============================================ */
.admin-body { background: #fafafa; }
.admin-header {
  background: var(--ink);
  color: #fff;
}
.admin-header-inner {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  min-height: 3.5rem;
}
.admin-logo {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-decoration: none;
  color: inherit;
}
.admin-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.admin-nav a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 0.85rem;
}
.admin-nav a:hover, .admin-nav a[aria-current="page"] { color: #fff; }
.admin-nav .link-btn { color: rgba(255, 255, 255, 0.75); }
.admin-nav .link-btn:hover { color: #fff; }

.admin-main {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}
.admin-page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.admin-section-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-60);
  margin: 2.5rem 0 0.75rem;
}
.admin-section-title.danger { color: #a03030; }
.editor-estado { font-size: 0.85rem; color: var(--accent); }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--ink-10);
  font-size: 0.875rem;
}
.admin-table th, .admin-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--ink-05);
}
.admin-table th {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-60);
  background: var(--ink-05);
}
.admin-table tfoot td { border-top: 1px solid var(--ink-10); }
.admin-table .total-row td { font-weight: 600; }
.admin-table .row-link { cursor: pointer; }
.admin-table .row-link:hover { background: var(--ink-05); }
.admin-table input {
  width: 100%;
  max-width: 8rem;
  font: inherit;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--ink-10);
}
.cell-thumb img { width: 2.5rem; height: 2.5rem; object-fit: cover; display: block; }

.admin-form { max-width: 40rem; background: #fff; border: 1px solid var(--ink-10); padding: 1.5rem; }
.admin-form textarea { width: 100%; font: inherit; padding: 0.6rem 0.7rem; border: 1px solid var(--ink-10); }

.badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  letter-spacing: 0.03em;
}
.badge-ok { background: #e2efe7; color: #1e4d3b; }
.badge-warn { background: #fdeeda; color: #8a5a13; }
.badge-muted { background: var(--ink-05); color: var(--ink-60); }

.stats { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.stat {
  background: #fff;
  border: 1px solid var(--ink-10);
  padding: 1rem 1.5rem;
  font-size: 0.8rem;
  color: var(--ink-60);
}
.stat span { display: block; font-size: 1.5rem; font-weight: 600; color: var(--ink); }

.img-grid { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.img-card { margin: 0; width: 8rem; }
.img-card img { width: 8rem; height: 8rem; object-fit: cover; border: 1px solid var(--ink-10); }
.img-card figcaption { font-size: 0.7rem; color: var(--accent); margin-top: 0.25rem; }
.upload-btn { cursor: pointer; display: inline-block; }
.btn-secondary { background: #fff; color: var(--ink); border: 1px solid var(--ink-10); }
.btn-secondary:hover { background: var(--ink-05); }
.btn-danger { background: #a03030; }
.btn-danger:hover { background: #7e2424; }

.admin-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.check-list {
  background: #fff;
  border: 1px solid var(--ink-10);
  padding: 1rem;
  max-width: 40rem;
  max-height: 20rem;
  overflow-y: auto;
  margin-bottom: 1rem;
}
.check-item { display: flex; gap: 0.5rem; align-items: center; padding: 0.3rem 0; font-size: 0.9rem; }
.check-item em { color: var(--ink-60); font-style: normal; font-size: 0.8rem; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.login-card {
  background: #fff;
  border: 1px solid var(--ink-10);
  padding: 2rem;
  width: 100%;
  max-width: 22rem;
}
.login-card .admin-logo { display: block; text-align: center; margin: 0 0 1.5rem; color: var(--ink); font-size: 1rem; }

/* ============================================
   Fase 5 — Estados, clientes, envío, IVA
   ============================================ */
.iva-nota { font-size: 0.75rem; color: var(--ink-60); font-weight: 400; }
.free-shipping-note { color: var(--accent); }
.cart-summary .total-line {
  border-top: 1px solid var(--ink-10);
  padding-top: 0.75rem;
  margin-top: 0.5rem;
  font-weight: 600;
}
.badge-info { background: #e3ebf5; color: #24466e; }
.badge-danger { background: #f7e2e2; color: #a03030; }
.guest-tag { font-style: normal; font-size: 0.7rem; color: var(--ink-60); border: 1px solid var(--ink-10); padding: 0.05rem 0.4rem; border-radius: 999px; }
.container-narrow { max-width: 42rem; }
.auth-tabs { display: flex; gap: 0; margin: 1.5rem 0; border: 1px solid var(--ink-10); width: fit-content; }
.auth-tab {
  font: inherit; font-size: 0.875rem; padding: 0.6rem 1.25rem;
  border: none; background: #fff; cursor: pointer; color: var(--ink-60);
}
.auth-tab.active { background: var(--ink); color: #fff; }
.auth-form { max-width: 26rem; }
.account-order {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: 1rem 0; border-bottom: 1px solid var(--ink-10);
}
.state-form { max-width: 46rem; }

.invite-box { margin: 1.5rem 0; }
.notify-check { margin: 0.75rem 0; }