/**
 * LAYOUT 3 COLUMNAS para Formulaciones
 * Igual que /aplicaciones (ps64-app-shell)
 */

/* Forzar header azul siempre en este layout */
.fs-app-shell ~ #header-premium,
body:has(.fs-app-shell) #header-premium,
body:has(.fs-app-shell) .hp {
    background: linear-gradient(135deg, #002244 0%, #001a33 100%) !important;
    box-shadow: 0 2px 20px rgba(0, 34, 68, 0.15) !important;
}

body:has(.fs-app-shell) .hp__logo-white {
    opacity: 1 !important;
}

body:has(.fs-app-shell) .hp__logo-dark {
    opacity: 0 !important;
}

body:has(.fs-app-shell) .hp__nav-item,
body:has(.fs-app-shell) .hp__search-btn,
body:has(.fs-app-shell) .hp__contact-btn,
body:has(.fs-app-shell) .hp__lang-btn {
    color: rgba(255, 255, 255, 0.9) !important;
}

body:has(.fs-app-shell) .hp__contact-btn {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
}

.fs-app-shell {
    display: grid;
    grid-template-columns: 280px 360px 1fr;
    height: calc(100vh - 71px);
    margin-top: 71px;
    overflow: hidden;
    background: #f8fafc;
}

/* Scrollbars elegantes para las 3 columnas */
.fs-sidebar__nav::-webkit-scrollbar,
.fs-listado__content::-webkit-scrollbar,
.fs-visor::-webkit-scrollbar {
    width: 6px;
}

.fs-sidebar__nav::-webkit-scrollbar-track,
.fs-listado__content::-webkit-scrollbar-track,
.fs-visor::-webkit-scrollbar-track {
    background: transparent;
}

.fs-sidebar__nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.fs-sidebar__nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.35);
}

.fs-listado__content::-webkit-scrollbar-thumb,
.fs-visor::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 3px;
}

.fs-listado__content::-webkit-scrollbar-thumb:hover,
.fs-visor::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25);
}

/* Firefox */
.fs-sidebar__nav,
.fs-listado__content,
.fs-visor {
    scrollbar-width: thin;
}

.fs-sidebar__nav {
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.fs-listado__content,
.fs-visor {
    scrollbar-color: rgba(0, 0, 0, 0.15) transparent;
}

/* ═══════════════════════════════════════════════════════════════════
   COL 1: SIDEBAR (navy)
   ═══════════════════════════════════════════════════════════════════ */
.fs-sidebar {
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, #002244 0%, #001a33 100%);
    color: #fff;
    overflow: hidden;
}

.fs-sidebar__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.fs-sidebar__header h2 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.7);
    margin: 0;
}

.fs-sidebar__close {
    display: none;
    padding: 0.5rem;
    color: rgba(255,255,255,0.6);
    border-radius: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.fs-sidebar__close:hover { color: #fff; background: rgba(255,255,255,0.1); }

.fs-sidebar__nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.fs-sidebar__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1rem;
    margin-bottom: 2px;
    border-radius: 8px;
    color: rgba(255,255,255,0.85);
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-decoration: none;
}

.fs-sidebar__item:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

.fs-sidebar__item.active {
    background: rgba(59, 170, 254, 0.15);
    color: #3BAAFE;
}

.fs-sidebar__count {
    font-size: 0.75rem;
    padding: 0.125rem 0.5rem;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    color: rgba(255,255,255,0.6);
}

/* ═══════════════════════════════════════════════════════════════════
   COL 2: LISTADO (blanco)
   ═══════════════════════════════════════════════════════════════════ */
.fs-listado {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-right: 1px solid #e2e8f0;
    overflow: hidden;
}

.fs-listado__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    background: #fff;
}

.fs-listado__header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1a2a3a;
    margin: 0;
}

.fs-listado__menu {
    display: none;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #475569;
}

.fs-listado__content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.fs-placeholder {
    text-align: center;
    color: #94a3b8;
    padding: 3rem 1rem;
}

.fs-loading {
    text-align: center;
    padding: 2rem;
    color: #64748b;
}

.fs-subcat {
    margin-bottom: 1.5rem;
}

.fs-subcat h3 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748b;
    margin: 0 0 0.75rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.fs-series-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.fs-serie-card {
    display: flex;
    flex-direction: column;
    padding: 0.75rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.fs-serie-card:hover {
    background: #fff;
    border-color: #3BAAFE;
    box-shadow: 0 2px 8px rgba(59, 170, 254, 0.15);
}

.fs-serie-card.active {
    background: #3BAAFE;
    border-color: #3BAAFE;
    color: #fff;
}

.fs-serie-card span {
    font-size: 0.875rem;
    font-weight: 600;
    color: #1a2a3a;
}

.fs-serie-card.active span { color: #fff; }

.fs-serie-card small {
    font-size: 0.75rem;
    color: #64748b;
    margin-top: 0.25rem;
}

.fs-serie-card.active small { color: rgba(255,255,255,0.8); }

/* ═══════════════════════════════════════════════════════════════════
   COL 3: VISOR (ficha)
   Contenedor scrollable para la ficha técnica compacta
   ═══════════════════════════════════════════════════════════════════ */
.fs-visor {
    overflow-y: auto;
    background: #fafbfc;
    padding: 1rem;
}

/* Contenedor interno para la ficha */
.fs-visor-folio {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
    overflow: hidden;
    outline: 1px solid #002244;
}

/* ═══════════════════════════════════════════════════════════════════
   ESTILOS COMPACTOS PARA FICHA EN VISOR
   Adapta la ficha al espacio reducido del layout 3 columnas
   ═══════════════════════════════════════════════════════════════════ */

/* Hero más compacto */
.fs-visor-folio .serie-hero {
    padding: 1.25rem 1.5rem;
}

.fs-visor-folio .serie-hero__title {
    font-size: 1.25rem;
}

.fs-visor-folio .serie-hero__container {
    flex-direction: column;
    gap: 1rem;
}

.fs-visor-folio .serie-hero__stats {
    gap: 1rem;
}

.fs-visor-folio .serie-hero__stat {
    text-align: left;
}

.fs-visor-folio .serie-hero__stat-value {
    font-size: 1rem;
}

/* Intro compacto */
.fs-visor-folio .serie-intro {
    padding: 1.25rem 1.5rem;
}

.fs-visor-folio .serie-intro__description {
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Tech specs compacto */
.fs-visor-folio .tech-specs {
    padding: 1rem;
}

.fs-visor-folio .tech-specs__grid {
    grid-template-columns: 1fr;
    gap: 0.375rem;
}

.fs-visor-folio .tech-spec {
    padding: 0.5rem 0.75rem;
}

.fs-visor-folio .tech-spec__icon {
    width: 24px;
    height: 24px;
}

.fs-visor-folio .tech-spec__text {
    font-size: 0.75rem;
}

/* Tabla compacta */
.fs-visor-folio .serie-table-section {
    padding: 1rem;
    overflow: hidden;
}

.fs-visor-folio .serie-table th {
    padding: 0.5rem 0.4rem !important;
    font-size: 0.625rem !important;
    white-space: normal !important;
    word-break: break-word;
    line-height: 1.2;
    letter-spacing: 0.3px !important;
}

.fs-visor-folio .serie-table td {
    padding: 0.5rem 0.4rem !important;
    font-size: 0.75rem !important;
    text-align: center;
}

.fs-visor-folio .serie-table {
    min-width: 0 !important;
    width: 100% !important;
    table-layout: fixed !important;
    border-radius: 0 !important;
}

.fs-visor-folio .serie-table-wrapper {
    overflow-x: auto;
    border: none;
    max-width: 100%;
    border-radius: 0 !important;
}

/* Sin líneas decorativas en títulos */
.fs-visor-folio .serie-section-title {
    border-bottom: none !important;
    padding-bottom: 0 !important;
}

/* Secciones compactas */
.fs-visor-folio .serie-applications,
.fs-visor-folio .serie-products,
.fs-visor-folio .serie-certifications,
.fs-visor-folio .serie-standards {
    padding: 1.25rem 1.5rem;
}

.fs-visor-folio .serie-section-title {
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Aplicaciones compactas */
.fs-visor-folio .serie-application-card {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

/* Productos compactos */
.fs-visor-folio .serie-products__grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.75rem;
}

.fs-visor-folio .serie-products .card-producto h3 {
    padding: 0.625rem 0.75rem;
    font-size: 0.75rem;
}

/* Certificaciones compactas */
.fs-visor-folio .serie-cert-item {
    padding: 0.375rem 0.625rem;
    font-size: 0.6875rem;
}

/* Standards compactas */
.fs-visor-folio .serie-standards__container {
    grid-template-columns: 1fr;
    gap: 1rem;
}

.fs-visor-folio .serie-standards__block {
    padding: 1rem;
}

.fs-visor-folio .serie-standards__title {
    font-size: 0.6875rem;
}

.fs-visor-folio .serie-standards__list li {
    font-size: 0.75rem;
    padding: 0.375rem 0;
}

/* Warnings compacto */
.fs-visor-folio .serie-warnings {
    padding: 1rem 1.5rem;
}

.fs-visor-folio .serie-warnings__list li {
    font-size: 0.75rem;
}

/* CTA compacto */
.fs-visor-folio .serie-cta {
    padding: 1.25rem 1.5rem;
}

.fs-visor-folio .serie-cta__container {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
}

.fs-visor-folio .serie-cta__title {
    font-size: 1rem;
}

.fs-visor-folio .serie-cta__btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
}

/* Related compacto */
.fs-visor-folio .serie-related {
    padding: 1.25rem 1.5rem;
}

.fs-visor-folio .serie-related__title {
    font-size: 0.75rem;
}

.fs-visor-folio .serie-related__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.fs-visor-folio .serie-related__card {
    padding: 0.75rem;
}

.fs-visor-folio .serie-related__name {
    font-size: 0.8125rem;
}

.fs-visor-folio .serie-related__dureza {
    font-size: 0.6875rem;
}

/* ═══════════════════════════════════════════════════════════════════
   OVERLAY MÓVIL
   ═══════════════════════════════════════════════════════════════════ */
.fs-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}

.fs-overlay.active { display: block; }

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .fs-app-shell {
        grid-template-columns: 1fr;
    }

    .fs-sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        z-index: 999;
        transition: left 0.3s ease;
    }

    .fs-sidebar.open { left: 0; }
    .fs-sidebar__close { display: flex; }
    .fs-listado__menu { display: flex; }

    .fs-listado {
        display: none;
    }

    .fs-visor {
        padding: 1rem;
    }
}