/* site/css/styles.css
 * Estilos del buscador de piezas. Mobile-first, sin frameworks.
 * Reglas clave: nunca scroll horizontal, focus siempre visible, tamaños
 * táctiles >= 44px.
 */

:root {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-surface-alt: #273449;
  --color-text: #e2e8f0;
  --color-text-dim: #94a3b8;
  --color-primary: #38bdf8;
  --color-primary-dark: #0ea5e9;
  --color-accent: #4ade80;
  --color-border: #334155;
  --radius: 10px;
  --focus-ring: 3px solid #facc15;
  --max-width: 960px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
}

/* Visible siempre al navegar con teclado (y también con mouse, a propósito:
 * es más fácil de verificar manualmente que solo aparezca con :focus-visible
 * y en este proyecto preferimos pecar de visible). */
:focus {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #0f172a;
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

header.app-header {
  padding: 1.25rem 1rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

header.app-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.4rem;
}

header.app-header p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.95rem;
}

header.app-header .app-tagline {
  color: var(--color-text);
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 0.35rem;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem;
  width: 100%;
}

.fixture-banner {
  background: #422006;
  border: 1px solid #a16207;
  color: #fde68a;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

/* --- Buscador principal --- */
.search-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.search-form label {
  flex: 1 1 100%;
  font-weight: 600;
  font-size: 0.95rem;
}

.search-form input[type="search"] {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.75rem 0.9rem;
  font-size: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: var(--color-primary);
  color: #0f172a;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  min-height: 44px;
  line-height: 1.2;
}

.btn:hover {
  background: var(--color-primary-dark);
}

.btn.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.search-hint {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin: 0.25rem 0 1rem;
}

.detected-badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--color-surface-alt);
  color: var(--color-accent);
  margin-left: 0.5rem;
}

/* --- Árbol vehículo -> categorías --- */
.vehicle-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.vehicle-card h2 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
}

.vehicle-card .vehicle-meta {
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.category-grid li {
  margin: 0;
}

.category-btn {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.6rem;
  color: var(--color-text);
  cursor: pointer;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  min-height: 44px;
}

.category-btn:hover {
  border-color: var(--color-primary);
}

.category-btn img {
  width: 48px;
  height: 48px;
}

.category-btn .category-name {
  font-size: 0.8rem;
}

.category-btn[aria-pressed="true"] {
  border-color: var(--color-primary);
  background: var(--color-surface-alt);
}

/* --- T-E7: acordeón de grupos (group_slug) -> slugs hoja --- */
.category-groups {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.category-group {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  overflow: hidden;
}

.category-group-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-surface);
  border: none;
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
  padding: 0.7rem 0.85rem;
  min-height: 44px;
  font-size: 0.95rem;
  font-weight: 600;
}

.category-group-toggle:hover {
  background: var(--color-surface-alt);
}

.category-group-name {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: break-word;
}

.category-group-count {
  flex: 0 0 auto;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-dim);
  background: var(--color-surface-alt);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
}

.category-group-chevron {
  flex: 0 0 auto;
  transition: transform 0.15s ease;
}

.category-group-toggle[aria-expanded="true"] .category-group-chevron {
  transform: rotate(180deg);
}

.category-group-panel {
  padding: 0.75rem;
  border-top: 1px solid var(--color-border);
}

.category-group-panel[hidden] {
  display: none;
}

/* --- Ficha de parte --- */
.part-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.part-card .part-image {
  flex: 0 0 96px;
  width: 96px;
  height: 96px;
  background: var(--color-surface-alt);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
}

.part-card .part-body {
  flex: 1 1 200px;
  min-width: 0;
}

.part-card h3 {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
}

.part-card .part-brand {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  margin: 0 0 0.5rem;
}

.epc-link-box {
  margin-top: 0.5rem;
}

.offers-list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.offer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  justify-content: space-between;
  background: var(--color-surface-alt);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
}

.offer-price {
  font-weight: 700;
  color: var(--color-accent);
}

.equivalents-list {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
}

.pegar-numero-box {
  background: var(--color-surface);
  border: 1px dashed var(--color-primary);
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: 1rem;
}

.pegar-numero-box h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.pegar-numero-box form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.pegar-numero-box input[type="search"] {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
}

.breadcrumb {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-bottom: 0.75rem;
}

.breadcrumb button {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  padding: 0;
  font-size: 0.85rem;
  text-decoration: underline;
}

.empty-state {
  color: var(--color-text-dim);
  padding: 1rem;
  text-align: center;
}

footer.app-footer {
  text-align: center;
  color: var(--color-text-dim);
  font-size: 0.8rem;
  padding: 1.5rem 1rem;
}

@media (min-width: 640px) {
  .search-form input[type="search"] {
    flex: 1 1 auto;
  }
}

/* --- T-E3: layout de dos columnas, VIN y selector de vehículo visibles
 * a la vez (reemplaza el toggle anterior "¿No tienes tu VIN a mano?").
 * Mobile-first: apiladas por defecto, lado a lado desde 760px. --- */
.dual-path {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.path-col {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  min-width: 0;
}

.path-col h2 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.path-col .search-form,
.path-col .vehicle-picker {
  margin-bottom: 0;
  border: none;
  padding: 0;
  background: none;
}

@media (min-width: 760px) {
  .dual-path {
    flex-direction: row;
    align-items: stretch;
  }

  .path-col {
    flex: 1 1 0;
  }
}

/* --- T-E4: barra "Mi vehículo" persistente --- */
.vehicle-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-primary-dark);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

/* Misma especificidad que ".vehicle-bar { display: flex }" de arriba: sin
 * esta regla, el atributo HTML `hidden` (que el navegador implementa como
 * `[hidden] { display: none }` de baja especificidad) pierde contra
 * nuestra clase y la barra se muestra vacía aunque JS la deje hidden=true
 * al cargar la página (bug real encontrado al probar T-E4 a mano). */
.vehicle-bar[hidden] {
  display: none;
}

.vehicle-bar-text {
  margin: 0;
  font-size: 0.95rem;
}

.vehicle-bar-text strong {
  color: var(--color-accent);
}

/* --- T-E5: categorías destacadas en el home --- */
.home-categories {
  margin-bottom: 1.5rem;
}

.home-categories h2 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
}

/* --- T-E6: tabla de fitment en la ficha de parte --- */
.fitment-box {
  margin-top: 0.75rem;
  overflow-x: auto;
}

.fitment-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}

.fitment-table th,
.fitment-table td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
}

.fitment-table th {
  color: var(--color-text-dim);
  font-weight: 600;
}

/* --- Selector de vehículo sin VIN (marca → año → modelo) ---
 * Antes de T-E3 esto vivía oculto detrás de un botón de toggle
 * (.vehicle-picker-toggle, ya removido de index.html junto con la clase).
 * Ahora .vehicle-picker se monta siempre dentro de .path-col (ver bloque
 * T-E3 arriba), por eso aquí ya no define su propio margen/fondo que
 * compitiera con .path-col. */
.vehicle-picker {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.vehicle-picker-status {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  min-height: 1.2em;
  margin: 0.25rem 0 0.75rem;
}

.vehicle-picker-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
}

.vehicle-picker-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1 1 160px;
  min-width: 0;
}

.vehicle-picker-field label {
  font-weight: 600;
  font-size: 0.9rem;
}

.vehicle-picker-field select {
  padding: 0.65rem 0.75rem;
  font-size: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
  min-height: 44px;
}

.vehicle-picker-field select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.vehicle-picker-form .btn {
  flex: 1 1 100%;
}

@media (min-width: 640px) {
  .vehicle-picker-form .btn {
    flex: 0 0 auto;
  }
}