/* ============================================================
   ALPACA RANTIYKUY — products.css
   Paleta: azul primario + naranja acento (igual que admin)
   ============================================================ */

:root {
    /* Blues */
    --primary-100: #dce8f5;
    --primary-200: #7FA3C7;
    --primary-300: #5F93C6;
    --primary-400: #3F83C5;
    --primary-500: #1F63A4;
    --primary-600: #174e83;
    --primary-700: #0f3560;

    /* Acento naranja */
    --accent:       #FF7A00;
    --accent-hover: #FF9A3C;
    --accent-soft:  rgba(255,122,0,.10);

    /* Fondos */
    --bg-page:    #EFF3F8;
    --bg-light:   #EFF3F8;
    --bg-surface: #ffffff;
    --bg-subtle:  #F0F4F8;
    --bg-muted:   #e4eaf2;

    /* Texto */
    --dark:           #102A43;
    --dark-2:         #152e4a;
    --earth:          #102A43;
    --text-primary:   #102A43;
    --text-secondary: #2d4a63;
    --text-muted:     #627D98;
    --text-faint:     #9ab0c7;
    --white:          #ffffff;

    /* Terracota (marca) */
    --terracotta:      #b56b45;
    --terracotta-deep: #8a4d2f;
    --muted:           #627D98;

    /* Bordes */
    --line:         rgba(31,99,164,.12);
    --border:       rgba(31,99,164,.12);
    --border-hover: rgba(31,99,164,.35);

    /* Sombras */
    --shadow-soft: 0 4px 16px rgba(16,42,67,.10);
    --shadow-card: 0 12px 28px rgba(16,42,67,.14);
    --shadow-xs:   0 1px 4px rgba(16,42,67,.07);
    --shadow-sm:   0 4px 12px rgba(16,42,67,.09);
    --shadow-md:   0 8px 24px rgba(16,42,67,.12);
    --shadow-lg:   0 16px 40px rgba(16,42,67,.15);
    --shadow-xl:   0 24px 56px rgba(16,42,67,.18);

    /* Forma */
    --radius-sm:   8px;
    --radius-md:   14px;
    --radius-lg:   22px;
    --radius-xl:   32px;
    --radius-full: 9999px;

    /* Animaciones */
    --ease-out:    cubic-bezier(.16,1,.3,1);
    --ease-spring: cubic-bezier(.34,1.56,.64,1);
    --transition:  all .25s var(--ease-out);
    --transition-fast: 150ms var(--ease-out);
    --transition-base: 250ms var(--ease-out);
    --transition-slow: 400ms var(--ease-out);
}

/* ============================================================
   RESET Y BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body.catalog-body {
    font-family: "Montserrat", sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }
a   { text-decoration: none; color: inherit; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2.5px solid var(--primary-400);
    outline-offset: 3px;
    border-radius: 4px;
}

.container {
    width: min(1280px, 92%);
    margin: 0 auto;
}

.catalog-main { padding-bottom: 64px; }

/* ============================================================
   HEADER — glassmorphism estilo admin
   ============================================================ */
.catalog-header-shell {
    position: sticky;
    top: 0;
    z-index: 90;
    backdrop-filter: blur(16px) saturate(1.5);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
}

/* Topbar */
.catalog-topbar {
    background: var(--primary-600);
    border-bottom: 1px solid rgba(255,255,255,.07);
}

.catalog-topbar-inner {
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.catalog-topbar-inner p {
    margin: 0;
    color: rgba(240,246,255,.68);
    font-size: .76rem;
    letter-spacing: .07em;
    text-transform: uppercase;
    font-weight: 600;
}

.catalog-topbar-links {
    display: flex;
    align-items: center;
    gap: 18px;
}

.catalog-topbar-links a {
    color: rgba(240,246,255,.78);
    font-size: .86rem;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.catalog-topbar-links a:hover { color: var(--accent-hover); }

/* Header main */
.catalog-header-main {
    background: linear-gradient(160deg, var(--primary-700) 0%, var(--primary-500) 55%, var(--primary-400) 100%);
    border-bottom: 1px solid rgba(255,255,255,.06);
    box-shadow: 0 4px 28px rgba(7,25,41,.32), 0 1px 0 rgba(255,255,255,.07) inset;
}

.catalog-header-main-inner {
    min-height: 80px;
    display: grid;
    grid-template-columns: 220px minmax(0,1fr) auto;
    gap: 18px;
    align-items: center;
}

.brand-logo {
    font-family: "Cormorant Garamond", serif;
    font-size: clamp(1.8rem, 2.8vw, 2.4rem);
    font-weight: 700;
    color: #f0f6ff;
    letter-spacing: .02em;
    line-height: 1;
    transition: color var(--transition-fast);
}
.brand-logo span { color: var(--accent); }
.brand-logo:hover { color: var(--accent-hover); }

/* Buscador */
.catalog-search-wrap {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: center;
}

.catalog-search-wrap input {
    width: 100%;
    min-height: 50px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255,255,255,.10);
    padding: 0 20px;
    background: rgba(255,255,255,.07);
    color: var(--white);
    outline: none;
    font-size: .97rem;
    font-family: "Montserrat", sans-serif;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.catalog-search-wrap input::placeholder { color: rgba(255,255,255,.54); }

.catalog-search-wrap input:focus {
    border-color: rgba(255,122,0,.45);
    background: rgba(255,255,255,.11);
}

.catalog-search-btn {
    min-height: 50px;
    padding: 0 24px;
    border: none;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: var(--white);
    font-weight: 800;
    font-family: "Montserrat", sans-serif;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(255,122,0,.25);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.catalog-search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(255,122,0,.32);
}

/* CTA links */
.catalog-header-cta {
    display: flex;
    align-items: center;
    gap: 10px;
}

.catalog-header-link {
    min-height: 46px;
    padding: 0 20px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,.06);
    color: rgba(255,255,255,.88);
    font-weight: 700;
    font-size: .88rem;
    border: 1px solid rgba(255,255,255,.06);
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.catalog-header-link:hover,
.catalog-header-link.is-active {
    background: rgba(255,255,255,.12);
    color: var(--white);
    border-color: rgba(255,255,255,.10);
}

/* ============================================================
   NAV DE CATEGORIAS
   ============================================================ */
.catalog-nav {
    background: var(--primary-700);
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.catalog-nav-list {
    list-style: none;
    display: flex;
    align-items: stretch;
    gap: 0;
}

.menu-item { position: relative; }

.catalog-nav-list > li > a {
    min-height: 52px;
    padding: 0 18px;
    display: inline-flex;
    align-items: center;
    color: rgba(255,255,255,.88);
    font-weight: 700;
    font-size: .88rem;
    transition: color var(--transition-fast), background var(--transition-fast);
    border-bottom: 2px solid transparent;
}

.catalog-nav-list > li > a:hover {
    color: var(--white);
    background: rgba(255,255,255,.05);
    border-bottom-color: var(--accent);
}

/* Mega menu */
.mega-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 210px;
    padding: 10px;
    border-radius: var(--radius-lg);
    background: rgba(16,42,67,.98);
    border: 1px solid rgba(255,255,255,.07);
    box-shadow: 0 20px 40px rgba(0,0,0,.22);
    display: grid;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.menu-item:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mega-menu a {
    min-height: 40px;
    display: flex;
    align-items: center;
    padding: 0 14px;
    border-radius: var(--radius-md);
    color: rgba(255,255,255,.82);
    font-size: .87rem;
    font-weight: 600;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.mega-menu a:hover {
    background: rgba(255,255,255,.08);
    color: var(--white);
}

/* ============================================================
   HERO
   ============================================================ */
.catalog-hero {
    padding: 24px 0 0;
}

.catalog-hero-card {
    background: linear-gradient(135deg, var(--primary-800, #0a2444) 0%, var(--primary-600) 55%, var(--primary-500) 100%);
    color: var(--white);
    border-radius: var(--radius-xl);
    padding: 44px 42px;
    box-shadow: 0 20px 56px rgba(7,25,41,.28);
    overflow: hidden;
    position: relative;
}

.catalog-hero-card::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -80px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,122,0,.14) 0%, transparent 65%);
    pointer-events: none;
}

.catalog-hero-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at top right, rgba(63,131,197,.28), transparent 45%),
        radial-gradient(ellipse at bottom left, rgba(255,122,0,.06), transparent 40%);
    pointer-events: none;
}

.catalog-kicker {
    position: relative;
    z-index: 1;
    margin: 0 0 10px;
    color: var(--accent);
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.catalog-kicker::before {
    content: '';
    width: 18px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

#catalog-title {
    position: relative;
    z-index: 1;
    margin: 0;
    font-family: "Cormorant Garamond", serif;
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    line-height: .96;
    color: #ffffff;
}

#catalog-description,
#catalog-subtitle {
    position: relative;
    z-index: 1;
    margin: 14px 0 0;
    max-width: 680px;
    color: rgba(255,255,255,.76);
    line-height: 1.8;
    font-size: .96rem;
}

.catalog-hero-meta {
    position: relative;
    z-index: 1;
    margin-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.catalog-stat {
    min-width: 160px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.08);
    backdrop-filter: blur(8px);
    transition: background var(--transition-fast);
}

.catalog-stat:hover { background: rgba(255,255,255,.11); }

.catalog-stat-label {
    display: block;
    color: rgba(255,255,255,.62);
    font-size: .73rem;
    text-transform: uppercase;
    letter-spacing: .09em;
    font-weight: 700;
    margin-bottom: 8px;
}

.catalog-stat strong {
    color: var(--white);
    font-size: 1.18rem;
    font-weight: 800;
}

/* ============================================================
   MOBILE ACTIONS
   ============================================================ */
.catalog-mobile-actions { display: none; }

/* ============================================================
   LAYOUT
   ============================================================ */
.catalog-page { padding-top: 24px; }

.catalog-layout {
    display: grid;
    grid-template-columns: 270px minmax(0,1fr);
    gap: 20px;
    align-items: start;
}

/* ============================================================
   SIDEBAR DE FILTROS
   ============================================================ */
.filters-sidebar {
    position: sticky;
    top: 148px;
    max-height: calc(100vh - 168px);
    overflow-y: auto;
    overscroll-behavior: contain;
    display: flex;
    flex-direction: column;
    gap: 14px;
    scrollbar-width: thin;
    scrollbar-color: var(--border, #ddd) transparent;
}

.filters-sidebar-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.filters-sidebar-kicker {
    margin: 0 0 5px;
    color: var(--accent);
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .11em;
    font-weight: 700;
}

.filters-sidebar-head h2 {
    margin: 0;
    font-family: "Cormorant Garamond", serif;
    font-size: 1.75rem;
    color: var(--earth);
    line-height: 1;
}

.filters-close-btn {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-md);
    background: rgba(31,99,164,.08);
    color: var(--earth);
    font-size: 1.4rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}
.filters-close-btn:hover { background: rgba(31,99,164,.14); }

.filter-card {
    background: rgba(255,255,255,.95);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow-soft);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.filter-card:hover {
    border-color: rgba(31,99,164,.22);
    box-shadow: var(--shadow-md);
}

.filter-card-highlight {
    background: linear-gradient(135deg, var(--primary-100), rgba(220,232,245,.4));
    border-color: rgba(31,99,164,.18);
}

.filter-card-kicker {
    color: var(--primary-500);
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .09em;
    font-weight: 700;
    margin-bottom: 5px;
    display: block;
}

.filter-card h3 {
    margin-bottom: 10px;
    font-family: "Cormorant Garamond", serif;
    font-size: 1.4rem;
    color: var(--primary-500);
    line-height: 1;
}

.filter-card p {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.72;
    font-size: .9rem;
}

.filter-card-head { margin-bottom: 12px; }

.filter-card-head h3 {
    margin: 0;
    font-family: "Montserrat", sans-serif;
    font-size: .88rem;
    color: var(--dark);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .07em;
}

.filter-group        { display: grid; gap: 8px; }
.filter-radio-group  { gap: 8px; }

.filter-radio {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 10px 13px;
    border-radius: var(--radius-md);
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    color: var(--dark);
    font-size: .9rem;
    transition: background var(--transition-fast), border-color var(--transition-fast);
    cursor: pointer;
}

.filter-radio:hover {
    border-color: rgba(31,99,164,.25);
    background: var(--primary-100);
}

.filter-radio.is-selected {
    border-color: var(--primary-500);
    background: var(--primary-100);
    color: var(--primary-600);
}

.filter-radio input { accent-color: var(--primary-500); }

.filter-select {
    width: 100%;
    min-height: 46px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0 14px;
    background: var(--white);
    color: var(--dark);
    font-family: "Montserrat", sans-serif;
    font-size: .9rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.filter-select:focus {
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(31,99,164,.10);
}

.clear-filters-btn,
.catalog-btn-secondary {
    width: 100%;
    min-height: 46px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-muted);
    font-weight: 700;
    font-family: "Montserrat", sans-serif;
    font-size: .86rem;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}
.clear-filters-btn:hover,
.catalog-btn-secondary:hover {
    border-color: var(--primary-500);
    background: var(--primary-100);
    color: var(--primary-600);
}

/* ============================================================
   TOOLBAR / RESULTADOS
   ============================================================ */
.catalog-results { min-width: 0; }

.catalog-toolbar {
    display: grid;
    grid-template-columns: minmax(0,1fr) auto;
    gap: 18px;
    align-items: center;
    margin-bottom: 18px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 22px;
    box-shadow: var(--shadow-soft);
}

.catalog-toolbar-title {
    color: var(--primary-500);
    font-weight: 800;
    font-size: 1rem;
    margin-bottom: 10px;
}

.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    border-radius: var(--radius-full);
    background: var(--primary-100);
    border: 1px solid rgba(31,99,164,.16);
    padding: 5px 13px;
    font-size: .75rem;
    font-family: "Montserrat", sans-serif;
    font-weight: 700;
    color: var(--primary-600);
    transition: background var(--transition-fast);
}
.filter-chip.is-muted { opacity: .6; }

.catalog-toolbar-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.sort-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.sort-wrap span {
    color: var(--text-muted);
    font-size: .82rem;
    font-weight: 700;
}
.sort-wrap select {
    min-width: 220px;
    min-height: 46px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0 14px;
    background: var(--white);
    color: var(--dark);
    font-family: "Montserrat", sans-serif;
    outline: none;
    transition: border-color var(--transition-fast);
}
.sort-wrap select:focus { border-color: var(--primary-400); }

/* ============================================================
   GRID DE PRODUCTOS — agrupado por modelo
   ============================================================ */
.catalog-grid {
    display: flex;
    flex-direction: column;
    gap: 28px;
    animation: fadeUp .35s var(--ease-out) both;
}

/* Sección por modelo */
.catalog-model-section {
    animation: fadeUp .35s var(--ease-out) both;
}

.catalog-model-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-100);
}

.catalog-model-title {
    font-family: "Cormorant Garamond", serif;
    font-size: 1.45rem;
    color: var(--primary-600);
    margin: 0;
    line-height: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.catalog-model-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--accent);
    border-radius: 2px;
    flex-shrink: 0;
}

.catalog-model-count {
    color: var(--text-muted);
    font-size: .78rem;
    font-weight: 700;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 3px 10px;
}

.catalog-model-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0,1fr));
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-200) transparent;
}

.catalog-model-grid::-webkit-scrollbar { height: 4px; }
.catalog-model-grid::-webkit-scrollbar-track { background: transparent; }
.catalog-model-grid::-webkit-scrollbar-thumb { background: var(--primary-200); border-radius: 4px; }

/* ============================================================
   CARD DE PRODUCTO — compact Amazon style
   ============================================================ */
.catalog-card {
    background: #fff;
    border: 1px solid rgba(0,0,0,.09);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,.07);
    transition: border-color 160ms ease, box-shadow 160ms ease;
    position: relative;
}
.catalog-card:hover {
    border-color: rgba(31,99,164,.28);
    box-shadow: 0 4px 18px rgba(7,25,41,.12);
}

.catalog-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
}

/* Imagen */
.catalog-card-media {
    position: relative;
    overflow: hidden;
    background: #f2f4f7;
    aspect-ratio: 3/4;
}
.catalog-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .5s ease;
}
.catalog-card:hover .catalog-card-image { transform: scale(1.04); }

/* Badges sobre imagen */
.catalog-card-badges {
    position: absolute;
    top: 7px;
    left: 7px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.catalog-card-badge {
    display: inline-flex;
    align-items: center;
    min-height: 20px;
    padding: 0 8px;
    border-radius: 4px;
    background: rgba(255,255,255,.93);
    color: var(--earth);
    font-size: .62rem;
    font-weight: 800;
    letter-spacing: .03em;
    box-shadow: 0 1px 3px rgba(0,0,0,.12);
    backdrop-filter: blur(4px);
}
.catalog-card-badge.is-dark {
    background: rgba(16,42,67,.90);
    color: #fff;
}
.catalog-card-badge.is-warn {
    background: var(--accent);
    color: #fff;
}

/* Cuerpo */
.catalog-card-body {
    padding: 9px 10px 11px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}
.catalog-card-category {
    color: var(--text-muted);
    font-size: .63rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    font-weight: 700;
    line-height: 1.2;
}
.catalog-card-title {
    margin: 3px 0 0;
    font-family: "Montserrat", sans-serif;
    font-size: .84rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark);
    /* máx 2 líneas — Amazon pattern */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.catalog-card-meta {
    margin: 2px 0 0;
    color: var(--text-muted);
    font-size: .70rem;
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.catalog-card-price {
    margin: 5px 0 0;
    font-size: .97rem;
    font-weight: 800;
    color: var(--primary-600);
    letter-spacing: -.01em;
    line-height: 1;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px 24px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    animation: fadeUp .3s var(--ease-out) both;
}
.empty-state strong {
    display: block;
    color: var(--earth);
    font-size: 1.05rem;
    margin-bottom: 8px;
}
.empty-state p,
.empty-state { color: var(--text-muted); line-height: 1.72; }

/* ============================================================
   OVERLAY MOVIL
   ============================================================ */
.filters-overlay {
    position: fixed;
    inset: 0;
    background: rgba(16,42,67,.35);
    backdrop-filter: blur(4px);
    z-index: 110;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}
.filters-overlay.is-visible {
    opacity: 1;
    pointer-events: auto;
}
body.filters-open { overflow: hidden; }

/* ============================================================
   ANIMACIONES
   ============================================================ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

/* Desktop grande: 5 col grid */
@media (max-width: 1400px) {
    .catalog-model-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
}

@media (max-width: 1280px) {
    .catalog-header-main-inner { grid-template-columns: 200px minmax(0,1fr) auto; }
    .catalog-layout             { grid-template-columns: 240px minmax(0,1fr); }
    .catalog-model-grid         { grid-template-columns: repeat(4, minmax(0,1fr)); }
}

@media (max-width: 1080px) {
    .catalog-layout        { grid-template-columns: 220px minmax(0,1fr); }
    .catalog-toolbar       { grid-template-columns: 1fr; }
    .catalog-toolbar-right { justify-content: flex-start; }
    .catalog-model-grid    { grid-template-columns: repeat(3, minmax(0,1fr)); }

    .catalog-header-main-inner {
        grid-template-columns: 1fr;
        gap: 12px;
        padding-top: 16px;
        padding-bottom: 16px;
    }
    .catalog-header-cta { justify-content: flex-start; }
}

/* Tablet: sidebar como drawer + 3 col grid */
@media (max-width: 820px) {
    .catalog-topbar-inner { padding-top: 10px; padding-bottom: 10px; flex-direction: column; align-items: flex-start; }
    .catalog-hero-card    { padding: 24px; border-radius: 26px; }
    .catalog-layout       { grid-template-columns: 1fr; }
    .catalog-model-grid   { grid-template-columns: repeat(3, minmax(0,1fr)); gap: 8px; }

    .filters-sidebar {
        position: fixed;
        top: 0; right: 0; bottom: 0;
        width: min(82vw, 300px);
        background: #f4f7fb;
        z-index: 120;
        padding: 18px 16px;
        overflow-y: auto;
        transform: translateX(100%);
        transition: transform .3s var(--ease-out);
        box-shadow: -16px 0 40px rgba(0,0,0,.14);
        border-radius: 0;
    }
    .filters-sidebar.is-open { transform: translateX(0); }
    .filters-close-btn { display: inline-flex; align-items: center; justify-content: center; }

    .catalog-mobile-actions {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        margin-bottom: 14px;
    }
    .catalog-mobile-filter-btn {
        min-height: 44px;
        padding: 0 20px;
        border: none;
        border-radius: var(--radius-full);
        background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
        color: var(--white);
        font-weight: 800;
        font-family: "Montserrat", sans-serif;
        cursor: pointer;
        box-shadow: 0 6px 18px rgba(31,99,164,.26);
        transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    }
    .catalog-mobile-filter-btn:hover {
        transform: translateY(-1px);
        box-shadow: 0 10px 24px rgba(31,99,164,.32);
    }
    .catalog-mobile-hint { margin: 0; color: var(--text-muted); font-size: .84rem; text-align: right; }
}

/* Mobile: header colapsado, 2 columnas fijas */
@media (max-width: 720px) {
    .catalog-topbar       { display: none; }
    .catalog-header-shell { position: sticky; top: 0; backdrop-filter: none; -webkit-backdrop-filter: none; }
    .catalog-header-main  { position: relative; }

    .catalog-header-main-inner {
        min-height: auto;
        grid-template-columns: 1fr;
        gap: 10px;
        padding-top: 12px;
        padding-bottom: 12px;
    }
    .brand-logo { font-size: 1.6rem; }

    .catalog-search-wrap {
        position: sticky;
        top: 0;
        z-index: 100;
        grid-template-columns: 1fr auto;
        gap: 8px;
        padding: 8px 0;
        background: rgba(16,42,67,.97);
        backdrop-filter: none;
    }
    .catalog-search-wrap input,
    .catalog-search-btn { min-height: 44px; }
    .catalog-search-btn { padding: 0 16px; font-size: .9rem; white-space: nowrap; }

    .catalog-header-cta { width: 100%; gap: 8px; }
    .catalog-header-link { flex: 1 1 0; min-height: 40px; padding: 0 12px; font-size: .88rem; }

    .catalog-nav {
        padding: 8px 0;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .catalog-nav::-webkit-scrollbar { display: none; }

    .catalog-nav-list {
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 8px;
        width: max-content;
        min-width: 100%;
        padding: 0 12px;
        align-items: center;
    }
    .menu-item { flex: 0 0 auto; }
    .mega-menu { display: none !important; }
    .catalog-nav-list > li > a {
        min-height: 36px;
        padding: 0 14px;
        border: 1px solid rgba(255,255,255,.08);
        border-bottom: none;
        border-radius: var(--radius-full);
        background: rgba(255,255,255,.05);
        white-space: nowrap;
        font-size: .86rem;
    }

    .catalog-hero  { display: none; }
    .catalog-page  { padding-top: 10px; }
    .catalog-toolbar { padding: 12px 14px; border-radius: var(--radius-lg); gap: 10px; }
    .catalog-toolbar-title { font-size: .88rem; }
    .sort-wrap, .sort-wrap select { width: 100%; min-width: 0; }

    /* 2 columnas fijas — patrón Amazon mobile */
    .catalog-model-grid {
        grid-template-columns: repeat(2, minmax(0,1fr));
        gap: 8px;
    }

    .catalog-card-body  { padding: 7px 8px 9px; }
    .catalog-card-title { font-size: .80rem; }
    .catalog-card-meta  { font-size: .66rem; }
    .catalog-card-price { font-size: .88rem; margin-top: 4px; }

    .catalog-mobile-actions { flex-direction: column; align-items: flex-start; gap: 8px; }
    .catalog-mobile-filter-btn { width: 100%; min-height: 44px; }
    .catalog-mobile-hint { text-align: left; }

    .catalog-grid { gap: 20px; }
    .catalog-model-title { font-size: 1.15rem; }
    .catalog-model-count { font-size: .72rem; }
}

@media (max-width: 520px) {
    .brand-logo { font-size: 1.4rem; }
    .catalog-search-wrap input, .catalog-search-btn { min-height: 44px; }
    .catalog-search-btn  { padding: 0 12px; font-size: .85rem; }
    .catalog-header-link { min-height: 36px; font-size: .82rem; }
    .catalog-nav-list    { padding: 0 10px; gap: 6px; }
    .catalog-nav-list > li > a { min-height: 34px; padding: 0 10px; font-size: .80rem; }

    .catalog-model-grid { gap: 6px; }
    .catalog-card-body  { padding: 6px 7px 8px; }
    .catalog-card-title { font-size: .77rem; }
    .catalog-card-price { font-size: .85rem; }
}

@media (prefers-reduced-motion: reduce) {
    .catalog-card, .catalog-card-image { transition: none; animation: none; }
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 2rem 0 1rem;
}

.page-btn {
    min-width: 38px;
    min-height: 38px;
    padding: 0 10px;
    border: 1.5px solid var(--primary-200, #7FA3C7);
    border-radius: 6px;
    background: #fff;
    color: var(--primary-700, #0f3560);
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.page-btn:hover:not(:disabled) {
    background: var(--primary-100, #dce8f5);
    border-color: var(--primary-400, #3F83C5);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-btn[aria-current="page"],
.page-btn.is-current {
    background: var(--primary-700, #0f3560);
    color: #fff;
    border-color: var(--primary-700, #0f3560);
    font-weight: 700;
}

.page-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    color: var(--primary-500, #1F63A4);
    font-size: .875rem;
}