/* ==========================================================================
   Páginas internas — productos, casos, contacto y errores.
   ========================================================================== */

/* Cabecera compartida por todas las páginas internas. */
.page-hero {
    position: relative;
    padding-top: calc(var(--header-height) + clamp(3rem, 6vw, 5rem));
    padding-bottom: clamp(2.5rem, 5vw, 4rem);
    background:
        radial-gradient(900px 420px at 88% 0%, rgba(4, 204, 216, 0.10), transparent 62%),
        radial-gradient(760px 420px at 4% 6%, rgba(10, 108, 255, 0.10), transparent 60%),
        var(--gradient-soft);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.page-hero__inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    max-width: 760px;
}

.page-hero__title {
    font-size: var(--text-4xl);
}

.page-hero__text {
    color: var(--color-text-muted);
    font-size: var(--text-lg);
    max-width: 62ch;
}

/* Migas de pan. */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: var(--text-xs);
}

.breadcrumb a {
    color: var(--color-text-muted);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

.breadcrumb__sep {
    color: var(--color-border-strong);
}

/* --------------------------------------------------------------------------
   Detalle de producto / caso
   -------------------------------------------------------------------------- */
.detail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: clamp(2.5rem, 5vw, 4.5rem);
    align-items: start;
}

.detail__body {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    max-width: 68ch;
}

.detail__lead {
    color: var(--color-navy-800);
    font-size: var(--text-xl);
    font-weight: 500;
    letter-spacing: var(--tracking-tight);
    line-height: 1.45;
}

.detail__block-title {
    margin-bottom: var(--space-2);
    font-size: var(--text-lg);
}

.detail__text {
    color: var(--color-text-muted);
    line-height: var(--leading-relaxed);
}

/* Separado del resto del cuerpo: es una salida, no un párrafo más. */
.detail__back {
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border);
}

.detail__aside {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-5);
    background-color: var(--color-surface-tint);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.detail__aside-title {
    font-size: var(--text-sm);
    font-weight: 600;
}

.detail__meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.detail__meta-row {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.detail__meta-label {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
}

.detail__meta-value {
    color: var(--color-navy-900);
    font-size: var(--text-sm);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   Rejillas de listado
   -------------------------------------------------------------------------- */
/*
 * 280 px de mínimo dan cuatro columnas en un contenedor de 1280: con cuatro
 * productos la rejilla queda completa en lugar de dejar tres arriba y uno solo
 * en la fila de abajo.
 */
.listing {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
    gap: var(--space-5);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    padding: clamp(3rem, 6vw, 5rem) var(--space-5);
    background-color: var(--color-surface-tint);
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-xl);
    text-align: center;
}

.empty-state__title {
    font-size: var(--text-xl);
}

.empty-state__text {
    max-width: 46ch;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Páginas de error
   -------------------------------------------------------------------------- */
.error-page {
    display: grid;
    place-items: center;
    min-height: 78vh;
    padding-top: var(--header-height);
    text-align: center;
}

.error-page__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-5);
    max-width: 520px;
    margin-inline: auto;
}

.error-page__code {
    font-size: clamp(4rem, 12vw, 7rem);
    font-weight: 700;
    letter-spacing: var(--tracking-tighter);
    line-height: 1;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

.error-page__text {
    color: var(--color-text-muted);
}

.error-page__debug {
    width: 100%;
    padding: var(--space-4);
    background-color: var(--color-surface-tint);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-align: left;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

@media (max-width: 992px) {
    .detail {
        grid-template-columns: minmax(0, 1fr);
    }

    .detail__aside {
        position: static;
    }
}