/**
 * Diccionario SEO by BarmetMedia — Fase 3: índice/búsqueda público.
 * Variables CSS centralizadas (ítem 11 del encargo) para que un tema o
 * una futura plantilla pueda sobrescribir el aspecto sin duplicar reglas
 * ni depender de !important. Namespaced con el prefijo "ds-" ya usado en
 * el resto del plugin.
 */

.ds-index {
    --ds-primary: #2271b1;
    --ds-primary-hover: #135e96;
    --ds-text: #1d2327;
    --ds-text-muted: #646970;
    --ds-border: #dcdcde;
    --ds-radius: 6px;
    --ds-spacing: 16px;
    --ds-bg: #ffffff;
    --ds-bg-muted: #f6f7f7;
    --ds-font-family: inherit;
    --ds-index-columns: 3;

    max-width: 980px;
    margin: 0 auto;
    padding: var(--ds-spacing);
    color: var(--ds-text);
    font-family: var(--ds-font-family);
    box-sizing: border-box;
}

.ds-index *,
.ds-index *::before,
.ds-index *::after {
    box-sizing: inherit;
}

/* ------------------------------------------------------------------ *
 * Modo "heredar estilos del tema" (ítem 12): minimiza estilos propios,
 * deja tipografía/color al tema — solo conserva estructura/espaciado.
 * ------------------------------------------------------------------ */
.ds-index--inherit-theme {
    --ds-primary: currentColor;
    --ds-primary-hover: currentColor;
    --ds-text: inherit;
    --ds-border: currentColor;
    --ds-bg: transparent;
    --ds-bg-muted: transparent;
    --ds-font-family: inherit;
}

.ds-index--inherit-theme .ds-index-item-link {
    text-decoration: underline;
}

/* ------------------------------------------------------------------ *
 * Buscador
 * ------------------------------------------------------------------ */
.ds-index-search-form {
    position: relative;
    display: flex;
    gap: 8px;
    margin-bottom: calc(var(--ds-spacing) * 0.75);
}

.ds-index-search-input {
    flex: 1 1 auto;
    min-width: 0;
    padding: 10px 14px;
    font-size: 15px;
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    background: var(--ds-bg);
    color: var(--ds-text);
}

.ds-index-search-input:focus {
    outline: 2px solid var(--ds-primary);
    outline-offset: 1px;
}

.ds-index-clear {
    padding: 8px 14px;
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    background: var(--ds-bg-muted);
    color: var(--ds-text);
    cursor: pointer;
}

.ds-index-clear[hidden] {
    display: none;
}

.ds-index-suggestions {
    position: absolute;
    z-index: 20;
    top: 100%;
    left: 0;
    right: 0;
    margin: 4px 0 0;
    padding: 4px;
    list-style: none;
    background: var(--ds-bg);
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    max-height: 320px;
    overflow-y: auto;
}

.ds-index-suggestions[hidden] {
    display: none;
}

.ds-index-suggestions li {
    padding: 8px 10px;
    border-radius: calc(var(--ds-radius) - 2px);
    cursor: pointer;
}

.ds-index-suggestions li[aria-selected="true"],
.ds-index-suggestions li:hover {
    background: var(--ds-bg-muted);
}

/* ------------------------------------------------------------------ *
 * Índice A-Z
 * ------------------------------------------------------------------ */
.ds-index-az {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: var(--ds-spacing);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
}

.ds-index-az-letter {
    min-width: 32px;
    padding: 6px 8px;
    font-size: 13px;
    line-height: 1;
    text-align: center;
    background: var(--ds-bg-muted);
    border: 1px solid var(--ds-border);
    border-radius: calc(var(--ds-radius) - 2px);
    color: var(--ds-text);
    cursor: pointer;
    flex: 0 0 auto;
}

.ds-index-az-letter.is-active,
.ds-index-az-letter[aria-current="true"] {
    background: var(--ds-primary);
    border-color: var(--ds-primary);
    color: #fff;
}

.ds-index-az-letter.is-empty,
.ds-index-az-letter:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.ds-index-az-letter:focus-visible {
    outline: 2px solid var(--ds-primary);
    outline-offset: 1px;
}

/* ------------------------------------------------------------------ *
 * Contador / estados
 * ------------------------------------------------------------------ */
.ds-index-count {
    margin: 0 0 8px;
    font-size: 13px;
    color: var(--ds-text-muted);
}

.ds-index-empty,
.ds-index-error {
    padding: 24px 16px;
    text-align: center;
    color: var(--ds-text-muted);
    background: var(--ds-bg-muted);
    border-radius: var(--ds-radius);
}

.ds-index-error {
    color: #b32d2e;
    background: #fcf0f1;
}

.ds-index.is-loading .ds-index-results {
    opacity: 0.5;
    pointer-events: none;
}

/* ------------------------------------------------------------------ *
 * Layout: lista
 * ------------------------------------------------------------------ */
.ds-index-list--lista,
.ds-index-list--compacto {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ds-index-item--lista,
.ds-index-item--compacto {
    padding: 10px 0;
    border-bottom: 1px solid var(--ds-border);
}

.ds-index-item--lista:last-child,
.ds-index-item--compacto:last-child {
    border-bottom: none;
}

/* ------------------------------------------------------------------ *
 * Layout: compacto — pensado para diccionarios grandes, más denso,
 * varias columnas de solo enlaces sin extracto/metadatos.
 * ------------------------------------------------------------------ */
.ds-index-list--compacto {
    display: grid;
    grid-template-columns: 1fr;
    column-gap: var(--ds-spacing);
}

.ds-index-item--compacto {
    padding: 4px 0;
    border-bottom: none;
    font-size: 14px;
}

/* ------------------------------------------------------------------ *
 * Layout: columnas
 * ------------------------------------------------------------------ */
.ds-index-list--columnas {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px var(--ds-spacing);
}

.ds-index-item--columnas {
    padding: 8px 0;
    border-bottom: 1px solid var(--ds-border);
}

/* ------------------------------------------------------------------ *
 * Layout: tarjetas
 * ------------------------------------------------------------------ */
.ds-index-list--tarjetas {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--ds-spacing);
}

.ds-index-item--tarjetas {
    padding: var(--ds-spacing);
    background: var(--ds-bg);
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.ds-index-item--tarjetas .ds-index-item-link {
    font-weight: 600;
    font-size: 16px;
}

.ds-index-item-excerpt {
    margin: 6px 0 0;
    font-size: 13px;
    color: var(--ds-text-muted);
    overflow-wrap: break-word;
}

.ds-index-item-meta {
    margin: 8px 0 0;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 12px;
}

.ds-index-item-meta span {
    padding: 2px 8px;
    background: var(--ds-bg-muted);
    border-radius: 999px;
    color: var(--ds-text-muted);
}

.ds-index-item-link {
    color: var(--ds-primary);
    text-decoration: none;
    overflow-wrap: break-word;
    word-break: break-word;
}

.ds-index-item-link:hover,
.ds-index-item-link:focus-visible {
    color: var(--ds-primary-hover);
    text-decoration: underline;
}

/* ------------------------------------------------------------------ *
 * Cargar más / paginación
 * ------------------------------------------------------------------ */
.ds-index-load-more-wrap {
    margin-top: var(--ds-spacing);
    text-align: center;
}

.ds-index-load-more {
    padding: 10px 24px;
    background: var(--ds-primary);
    color: #fff;
    border: none;
    border-radius: var(--ds-radius);
    cursor: pointer;
    font-size: 14px;
}

.ds-index-load-more:hover {
    background: var(--ds-primary-hover);
}

.ds-index-pagination {
    margin-top: var(--ds-spacing);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.ds-index-pagination button {
    padding: 8px 16px;
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    background: var(--ds-bg);
    cursor: pointer;
}

.ds-index-pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.ds-index-page-status {
    font-size: 13px;
    color: var(--ds-text-muted);
}

/* ------------------------------------------------------------------ *
 * Responsive — validado explícitamente en 320/375/768/1024/1440px
 * (docs/phase3-validation.md). Sin scroll horizontal accidental: la
 * navegación A-Z usa scroll horizontal CONTENIDO deliberadamente (ver
 * overflow-x arriba), nunca el body/wrapper completo.
 * ------------------------------------------------------------------ */
@media (min-width: 640px) {
    .ds-index-list--compacto {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .ds-index-list--columnas {
        grid-template-columns: repeat(var(--ds-index-columns), 1fr);
    }

    .ds-index-list--tarjetas {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }

    .ds-index-list--compacto {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .ds-index-list--compacto {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 480px) {
    .ds-index-search-form {
        flex-direction: column;
    }

    .ds-index-clear {
        align-self: flex-start;
    }
}

/* ------------------------------------------------------------------ *
 * Fase 3 — ítem 15: términos relacionados, con estilo configurable.
 * "lista" (por defecto) es exactamente el estilo de antes de Fase 3;
 * "chips" y "tarjetas" son nuevos. Reutiliza las mismas variables --ds-*
 * que el resto del índice para tokens de diseño consistentes.
 * ------------------------------------------------------------------ */
.ds-related-terms {
    --ds-primary: #2271b1;
    --ds-primary-hover: #135e96;
    --ds-text: #1d2327;
    --ds-text-muted: #646970;
    --ds-border: #dcdcde;
    --ds-radius: 6px;
    --ds-bg-muted: #f6f7f7;
    margin: 24px 0;
}

.ds-related-terms-title {
    font-size: 18px;
    margin: 0 0 12px;
}

.ds-related-terms-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.ds-related-term a {
    color: var(--ds-primary);
    text-decoration: none;
}

.ds-related-term a:hover {
    color: var(--ds-primary-hover);
    text-decoration: underline;
}

.ds-related-term-type {
    margin-left: 6px;
    font-size: 12px;
    color: var(--ds-text-muted);
}

/* "lista": comportamiento/estructura previos a Fase 3, sin cambios. */
.ds-related-terms--lista .ds-related-term {
    padding: 6px 0;
    border-bottom: 1px solid var(--ds-border);
}

.ds-related-terms--lista .ds-related-term:last-child {
    border-bottom: none;
}

/* "chips": etiquetas en línea, envolventes. */
.ds-related-terms--chips .ds-related-terms-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.ds-related-terms--chips .ds-related-term {
    padding: 6px 12px;
    background: var(--ds-bg-muted);
    border-radius: 999px;
}

.ds-related-terms--chips .ds-related-term-type {
    display: block;
    margin-left: 0;
    font-size: 11px;
}

/* "tarjetas": una tarjeta compacta por término relacionado. */
.ds-related-terms--tarjetas .ds-related-terms-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}

.ds-related-terms--tarjetas .ds-related-term {
    padding: 12px;
    background: #fff;
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
}

/* ------------------------------------------------------------------ *
 * Fase 3 — ítem 14: ficha de término (DS_Term_View). No se muestran
 * bloques vacíos -- el propio PHP omite cada <dl> si no hay datos, así
 * que el CSS no necesita ocultarlos.
 * ------------------------------------------------------------------ */
.ds-term-view {
    --ds-text-muted: #646970;
    --ds-border: #dcdcde;
    max-width: 780px;
}

.ds-term-view-title {
    margin: 0 0 16px;
}

.ds-term-view-definition {
    margin-bottom: 20px;
    line-height: 1.6;
}

.ds-term-view-taxonomies,
.ds-term-view-variants {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 32px;
    margin: 0 0 20px;
    padding: 12px 0;
    border-top: 1px solid var(--ds-border);
    border-bottom: 1px solid var(--ds-border);
}

.ds-term-view-tax-group dt,
.ds-term-view-variant-group dt {
    margin: 0 0 2px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--ds-text-muted);
}

.ds-term-view-tax-group dd,
.ds-term-view-variant-group dd {
    margin: 0;
    font-size: 14px;
}