/* Tokens compartidos de la shell. Mantener los colores de texto con contraste AA. */
:root {
  color-scheme: light;
  --color-sky: #e8f7ff;
  --color-aqua: #d8f6f1;
  --color-leaf: #e5f5dc;
  --color-text: #17354b;
  --color-text-muted: #405d70;
  --color-brand: #075985;
  --color-brand-hover: #064766;
  --color-border: #66899a;
  --color-border-strong: #355d70;
  --surface-page: #edf8fb;
  --surface: #ffffff;
  --surface-raised: #f8fdff;
  --elevation-focus: 0 0 0 3px #ffffff, 0 0 0 6px #075985;
  --focus-color: #075985;
  --control-min-height: 2.75rem;
  --motion-fast: 160ms;
  --motion-easing: cubic-bezier(0.2, 0.7, 0.2, 1);
}

html {
  background-color: #0757ac;
  background-image: linear-gradient(180deg, var(--surface-page) 0%, var(--surface-page) 55%, #0757ac 100%);
  scroll-behavior: smooth;
}

body.app-shell {
  display: flex;
  flex-direction: column;
  color: var(--color-text);
  background-color: var(--surface-page);
  background-image:
    radial-gradient(ellipse at 8% 0%, rgb(151 224 255 / 45%), transparent 42rem),
    radial-gradient(ellipse at 94% 18%, rgb(154 235 212 / 30%), transparent 38rem),
    linear-gradient(145deg, var(--color-sky), var(--surface-page) 52%, var(--color-leaf));
}

.app-main {
  flex: 1 0 auto;
}

/* Las reglas de htmx (.htmx-indicator{opacity:0}) se inyectan DESPUÉS de este <link>,
   por eso el estado activo usa !important y sin transición de entrada. */
.htmx-indicator { opacity: 0; }
.htmx-request.htmx-indicator, .htmx-request .htmx-indicator { opacity: 1 !important; transition: none !important; }

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--focus-color);
  outline-offset: 3px;
  box-shadow: var(--elevation-focus);
}

:where(button, input, select, textarea) {
  accent-color: var(--color-brand);
}

/* Controles utilizables con teclado y táctil; los campos mantienen borde AA. */
.app-shell button,
.app-shell input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]),
.app-shell select,
.app-shell textarea,
.app-shell summary {
  min-height: var(--control-min-height);
}

.app-shell input:not([type="hidden"]),
.app-shell select,
.app-shell textarea {
  border-color: var(--color-border);
  color: var(--color-text);
}

.app-shell button[class*="border"],
.app-shell a[class*="border"],
.app-shell input[class*="border"],
.app-shell select[class*="border"],
.app-shell textarea[class*="border"] {
  border-color: var(--color-border);
}

/* El enlace al producto también conserva un área táctil cómoda al truncarse. */
#search-results article a[style*="-webkit-line-clamp"] {
  min-height: var(--control-min-height);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --color-text: #102a3b;
    --color-text-muted: #29485b;
    --color-brand: #00466d;
    --color-brand-hover: #003750;
    --color-border: #4b7184;
    --color-border-strong: #355d70;
    --focus-color: #003e63;
    --elevation-focus: 0 0 0 3px #ffffff, 0 0 0 7px #003e63;
  }

  .app-shell :where(button, input, select, textarea, summary, .search-filter) {
    border-color: var(--color-border);
  }
}

@media (forced-colors: active) {
  :where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
    outline: 2px solid Highlight;
    box-shadow: none;
  }
}

.search-filters {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background-color: var(--surface-raised);
}

.search-filters__groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: 0.75rem;
}

.search-filter {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  background-color: var(--surface);
}

.search-filter__summary {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  color: var(--color-brand);
  font-weight: 700;
  cursor: pointer;
  list-style-position: inside;
}

.search-filter__selection {
  min-width: 0;
  overflow: hidden;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-filter__options {
  display: grid;
  gap: 0.25rem;
  max-height: 16rem;
  overflow-y: auto;
  margin: 0;
  padding: 0.5rem;
  border-top: 1px solid var(--color-border);
  list-style: none;
}

.search-filter__option {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  color: var(--color-text);
  text-decoration: none;
}

.search-filter__option:hover,
.search-filter__option[aria-current="true"] {
  background-color: var(--color-aqua);
  color: var(--color-brand-hover);
}

.search-filter__count,
.search-filter__selected {
  flex: none;
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.search-filter__selected {
  margin-inline-start: auto;
  font-weight: 700;
}

.search-filters__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

.search-filter__offer,
.search-filter__clear {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  color: var(--color-brand);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.search-filter__offer {
  border: 1px solid var(--color-border);
  text-decoration: none;
}

.search-filter__offer.is-selected {
  border-color: var(--color-brand);
  background-color: var(--color-brand);
  color: var(--surface);
}

.search-results__empty {
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background-color: var(--surface);
  color: var(--color-text-muted);
}

.htmx-action-pending {
  cursor: progress;
  opacity: 0.75;
}

#shopping-list-content[aria-busy="true"],
#search-results[aria-busy="true"],
tr[id^="supermarket-"][aria-busy="true"] {
  cursor: progress;
}

.htmx-action-error {
  margin-top: 0.5rem;
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.htmx-action-error:focus {
  outline: 3px solid var(--focus-color);
  outline-offset: 3px;
}

@media (max-width: 24.375rem) {
  .search-filters {
    padding: 0.75rem;
  }

  .search-filter__summary {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 0.125rem;
  }

  .search-filter__selection {
    max-width: 100%;
    text-align: left;
  }
}

/* Checklist toggle de la lista de compras: botón redondo con estado. */
.aa-check {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  border: 2px solid var(--aa-ink-muted, #64748b);
  color: var(--aa-ink-muted, #64748b);
  font-size: 1.1rem;
  line-height: 1;
  background: transparent;
  cursor: pointer;
}
.aa-check--on {
  border-color: var(--aa-success, #15803d);
  background: var(--aa-success, #15803d);
  color: #fff;
}
.aa-check:focus-visible {
  outline: 3px solid var(--aa-focus, #0a6cd6);
  outline-offset: 2px;
}