/* ============================================
   INSTALECT — Catálogo Industrial
   Hereda variables de /styles.css
   ============================================ */

.catalog-main {
    padding-top: 80px;
    min-height: calc(100vh - 200px);
}

/* ---- HERO ---- */
.catalog-hero {
    padding: 3rem 0 2rem;
    background: linear-gradient(180deg,
        var(--clr-bg-secondary) 0%,
        var(--clr-bg-primary) 100%);
    border-bottom: 1px solid var(--clr-border);
}

.catalog-hero__title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    color: var(--clr-text-heading);
    margin-bottom: 0.5rem;
    text-align: center;
}

.catalog-hero__subtitle {
    color: var(--clr-text-muted);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.catalog-hero__subtitle strong {
    color: var(--clr-accent-light);
    font-weight: 600;
}

/* ---- BUSCADOR ---- */
.catalog-search {
    position: relative;
    max-width: 720px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    background: var(--clr-bg-card);
    border: 1.5px solid var(--clr-border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.catalog-search:focus-within {
    border-color: var(--clr-accent);
    box-shadow: 0 0 0 4px rgba(0, 180, 216, 0.15), var(--shadow-glow);
}

.catalog-search__icon {
    position: absolute;
    left: 1.25rem;
    color: var(--clr-text-muted);
    pointer-events: none;
}

.catalog-search:focus-within .catalog-search__icon {
    color: var(--clr-accent);
}

.catalog-search__input {
    flex: 1;
    padding: 1.1rem 3rem 1.1rem 3.5rem;
    background: transparent;
    border: none;
    outline: none;
    color: var(--clr-text-heading);
    font-family: var(--font-body);
    font-size: 1rem;
    width: 100%;
}

.catalog-search__input::placeholder {
    color: var(--clr-text-muted);
}

.catalog-search__clear {
    position: absolute;
    right: 1rem;
    background: var(--clr-bg-primary);
    border: 1px solid var(--clr-border);
    color: var(--clr-text);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.catalog-search__clear:hover {
    background: var(--clr-accent);
    color: #fff;
    border-color: var(--clr-accent);
}

/* ---- FILTROS POR SECCIÓN (chips) ---- */
.catalog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
    max-width: 900px;
    margin: 0 auto;
}

.catalog-chip {
    padding: 0.6rem 1.2rem;
    border: 1.5px solid var(--clr-border);
    background: var(--clr-bg-card);
    color: var(--clr-text);
    border-radius: 999px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.catalog-chip:hover {
    border-color: var(--clr-accent);
    color: var(--clr-accent-light);
    transform: translateY(-1px);
}

.catalog-chip--active {
    background: var(--clr-accent);
    color: #fff;
    border-color: var(--clr-accent);
    box-shadow: 0 4px 12px rgba(0, 180, 216, 0.35);
}

.catalog-chip--active:hover {
    color: #fff;
    background: var(--clr-accent-dark);
}

/* ---- CONTENT ---- */
.catalog-content {
    padding: 2rem 0 4rem;
}

.catalog-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 4rem 0;
    color: var(--clr-text-muted);
}

/* Asegurar que [hidden] sobreescriba display:flex/grid */
[hidden] {
    display: none !important;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--clr-border);
    border-top-color: var(--clr-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---- RESULTS BAR ---- */
.catalog-results-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.catalog-results-count {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

.catalog-results-count strong {
    color: var(--clr-accent-light);
}

.catalog-sort {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--clr-text-muted);
    font-size: 0.9rem;
}

.catalog-select {
    padding: 0.5rem 0.8rem;
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    color: var(--clr-text);
    font-family: var(--font-body);
    cursor: pointer;
}

.catalog-select:focus {
    border-color: var(--clr-accent);
    outline: none;
}

/* ---- GRID DE RESULTADOS ---- */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 1.25rem;
}

.catalog-card {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    position: relative;
    overflow: hidden;
}

.catalog-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 180, 216, 0.04) 100%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.catalog-card:hover {
    border-color: var(--clr-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    background: var(--clr-bg-card-hover);
}

.catalog-card:hover::before {
    opacity: 1;
}

.catalog-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.catalog-card__section {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--clr-accent-light);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.catalog-card__page {
    background: var(--clr-bg-primary);
    color: var(--clr-text-muted);
    border: 1px solid var(--clr-border);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.catalog-card__title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--clr-text-heading);
    line-height: 1.3;
}

.catalog-card__subtitles {
    color: var(--clr-text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
}

.catalog-card__refs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--clr-border);
}

.catalog-ref {
    background: rgba(0, 180, 216, 0.12);
    color: var(--clr-accent-light);
    border: 1px solid rgba(0, 180, 216, 0.25);
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.catalog-ref--match {
    background: var(--clr-gold);
    color: #1a1a1a;
    border-color: var(--clr-gold);
}

.catalog-card__snippet {
    color: var(--clr-text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.catalog-card__snippet mark {
    background: rgba(255, 193, 7, 0.25);
    color: var(--clr-gold);
    padding: 0.05em 0.2em;
    border-radius: 3px;
}

/* ---- EMPTY STATE ---- */
.catalog-empty {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--clr-text-muted);
}

.catalog-empty p {
    margin-bottom: 0.5rem;
}

/* ============================================
   MODAL VISOR DE PÁGINA
   ============================================ */

.catalog-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.catalog-modal[hidden] {
    display: none;
}

.catalog-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    cursor: pointer;
}

.catalog-modal__panel {
    position: relative;
    background: var(--clr-bg-primary);
    width: 100%;
    max-width: 1400px;
    margin: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--clr-border);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modal-in 0.25s ease-out;
}

@keyframes modal-in {
    from {
        opacity: 0;
        transform: scale(0.96);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.catalog-modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--clr-border);
    background: var(--clr-bg-secondary);
}

.catalog-modal__title {
    font-family: var(--font-heading);
    color: var(--clr-text-heading);
    font-size: 1.15rem;
    margin: 0;
}

.catalog-modal__subtitle {
    color: var(--clr-text-muted);
    font-size: 0.85rem;
    margin: 0;
    margin-top: 0.2rem;
}

.catalog-modal__actions {
    display: flex;
    gap: 0.5rem;
}

.catalog-modal__nav,
.catalog-modal__close {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    color: var(--clr-text);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.catalog-modal__nav:hover,
.catalog-modal__close:hover {
    background: var(--clr-accent);
    color: #fff;
    border-color: var(--clr-accent);
}

.catalog-modal__close:hover {
    background: #c0392b;
    border-color: #c0392b;
}

.catalog-modal__body {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 320px;
    min-height: 0;
}

.catalog-modal__viewer {
    background: #2a2a2a;
    min-height: 70vh;
    height: 100%;
}

.catalog-modal__viewer object,
.catalog-modal__viewer iframe {
    width: 100%;
    height: 100%;
    min-height: 70vh;
    border: 0;
    display: block;
}

.catalog-modal__sidebar {
    padding: 1.5rem;
    border-left: 1px solid var(--clr-border);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    background: var(--clr-bg-secondary);
}

.catalog-modal__section h3 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    color: var(--clr-text-heading);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.catalog-refs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    max-height: 280px;
    overflow-y: auto;
}

.catalog-refs .catalog-ref {
    cursor: pointer;
    transition: var(--transition);
}

.catalog-refs .catalog-ref:hover {
    background: var(--clr-accent);
    color: #fff;
    border-color: var(--clr-accent);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 900px) {
    .catalog-modal__body {
        grid-template-columns: 1fr;
        grid-template-rows: 60vh auto;
    }

    .catalog-modal__sidebar {
        border-left: none;
        border-top: 1px solid var(--clr-border);
    }

    .catalog-modal__panel {
        margin: 0.5rem;
    }
}

@media (max-width: 600px) {
    .catalog-hero {
        padding: 2rem 0 1.5rem;
    }

    .catalog-search__input {
        font-size: 0.95rem;
        padding: 0.95rem 2.5rem 0.95rem 3rem;
    }

    .catalog-grid {
        grid-template-columns: 1fr;
    }

    .catalog-filters {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }

    .catalog-chip {
        flex-shrink: 0;
    }
}