/* ============================================================
   TIENDA — SISTEMA DE DISEÑO MODERNO
   Minimalista / elegante — tipografía Inter, acento índigo
   ============================================================ */

:root {
    --ink: #14161a;
    --ink-soft: #4b5060;
    --muted: #8b8f9c;
    --line: #ececef;
    --bg: #fafafaf9;
    --surface: #ffffff;

    --accent: #4f46e5;
    --accent-dark: #3c34c5;
    --accent-soft: #eeedfd;

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;

    --shadow-sm: 0 1px 3px rgba(20, 22, 26, 0.06), 0 1px 2px rgba(20, 22, 26, 0.04);
    --shadow-md: 0 8px 24px rgba(20, 22, 26, 0.08);
    --shadow-lg: 0 20px 45px rgba(20, 22, 26, 0.12);

    /* Sobrescritura de variables de Bootstrap 5.3 */
    --bs-primary: var(--accent);
    --bs-primary-rgb: 79, 70, 229;
    --bs-link-color: var(--accent);
    --bs-link-color-rgb: 79, 70, 229;
    --bs-link-hover-color: var(--accent-dark);
    --bs-body-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --bs-body-color: var(--ink);
    --bs-body-bg: var(--bg);
    --bs-border-radius: var(--radius-sm);
    --bs-border-radius-lg: var(--radius);
}

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }

body {
    position: relative;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    letter-spacing: -0.01em;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--ink);
}

a { transition: color .15s ease; }

::selection { background: var(--accent-soft); color: var(--accent-dark); }

/* ---------- Fondo personalizable ---------- */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -2;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

body::after {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ---------- Navbar ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--line);
    padding-top: .85rem;
    padding-bottom: .85rem;
    box-shadow: none;
    transition: box-shadow .2s ease;
}

.navbar.navbar-dark { background: rgba(255,255,255,0.85) !important; }

.navbar-brand {
    color: var(--ink) !important;
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 1.15rem;
}

.navbar-dark .navbar-nav .nav-link {
    color: var(--ink-soft) !important;
    font-weight: 500;
    font-size: .93rem;
    padding: .5rem .9rem !important;
    border-radius: var(--radius-sm);
    transition: color .15s ease, background .15s ease;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--accent) !important;
    background: var(--accent-soft);
}

.navbar-dark .navbar-toggler {
    border: 1px solid var(--line);
    background: #f4f4f6;
    padding: .5rem .65rem;
}

.navbar-dark .navbar-toggler-icon {
    width: 1.4em;
    height: 1.4em;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2314161a' stroke-width='3.5' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar form.d-flex .form-control {
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #f4f4f6;
    padding-left: 1rem;
}

.navbar form.d-flex .form-control:focus {
    box-shadow: 0 0 0 3px var(--accent-soft);
    border-color: var(--accent);
    background: #fff;
}

.navbar form.d-flex .btn {
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--ink-soft);
    background: #f4f4f6;
}

.navbar .btn-outline-light { border: none; color: var(--ink-soft) !important; background: transparent; }
.navbar .btn-outline-light:hover { background: var(--accent-soft); color: var(--accent) !important; }

.dropdown-menu {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: .5rem;
}

.dropdown-item {
    border-radius: var(--radius-sm);
    padding: .55rem .8rem;
    font-size: .92rem;
}

.dropdown-item:hover { background: var(--accent-soft); color: var(--accent-dark); }
.dropdown-header { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }

/* ---------- Botones ---------- */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: .92rem;
    padding: .6rem 1.15rem;
    letter-spacing: -0.01em;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease, filter .15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary, .btn-dark {
    background: var(--ink) !important;
    border-color: var(--ink) !important;
    color: #fff !important;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover, .btn-dark:hover {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.28);
}

.btn-outline-primary, .btn-outline-dark {
    border-color: var(--line);
    color: var(--ink);
}

.btn-outline-primary:hover, .btn-outline-dark:hover {
    background: var(--ink);
    border-color: var(--ink);
}

.btn-outline-danger { border-color: var(--line); color: #e0517c; }
.btn-outline-danger:hover { background: #e0517c; border-color: #e0517c; }

.btn-lg { border-radius: var(--radius); padding: .8rem 1.6rem; }
.btn-sm { border-radius: 7px; }

/* ---------- Tarjetas / productos ---------- */
.card {
    background: var(--surface) !important;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
}

.product-card {
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.product-card .card-img-top {
    transition: transform .35s ease;
    background: #fbfbfc;
}

.product-card:hover .card-img-top { transform: scale(1.04); }

.card-title a { color: var(--ink); font-weight: 600; }
.card-title a:hover { color: var(--accent); }

.card .text-muted.fs-5 { color: var(--accent) !important; font-weight: 700; letter-spacing: -0.02em; }

/* ---------- Encabezados de sección ---------- */
h1.text-center.mb-4 {
    font-size: 2rem;
    position: relative;
    padding-bottom: .6rem;
}

h1.text-center.mb-4::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 48px; height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

/* ---------- Filtros ---------- */
.card.bg-light.border-0 {
    background: var(--surface) !important;
    border: 1px solid var(--line) !important;
    border-radius: var(--radius-lg);
}

.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    padding: .6rem .85rem;
    font-size: .92rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.input-group-text { background: #f4f4f6; border: 1px solid var(--line); }

/* ---------- Badges ---------- */
.badge.bg-danger { background: #e0517c !important; font-weight: 600; }
.badge.bg-warning, .text-warning { color: #d99e2b !important; }

/* ---------- Carrusel de ofertas ---------- */
#carouselOfertas { border-radius: var(--radius-lg); }
#carouselOfertas .bg-dark { background: var(--ink) !important; }

/* ---------- Breadcrumb / tabs / paginación ---------- */
.breadcrumb-item a { color: var(--muted); text-decoration: none; }
.breadcrumb-item a:hover { color: var(--accent); }
.breadcrumb-item.active { color: var(--ink); }

.nav-tabs { border-bottom: 1px solid var(--line); }
.nav-tabs .nav-link {
    border: none;
    color: var(--muted);
    font-weight: 600;
    border-radius: 0;
}
.nav-tabs .nav-link.active {
    color: var(--ink);
    border-bottom: 2px solid var(--accent);
    background: transparent;
}

.tab-content.bg-light {
    background: var(--surface) !important;
    border: 1px solid var(--line) !important;
    border-radius: 0 0 var(--radius) var(--radius);
}

.pagination .page-link {
    border: 1px solid var(--line);
    color: var(--ink-soft);
    margin: 0 3px;
    border-radius: var(--radius-sm) !important;
}
.pagination .page-item.active .page-link {
    background: var(--ink);
    border-color: var(--ink);
}

/* ---------- Barra de confianza ---------- */
.trust-bar {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 1.1rem 0;
    margin-bottom: 2rem;
}

.trust-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .7rem;
}

@media (min-width: 768px) {
    .trust-item { justify-content: flex-start; }
}

.trust-item i {
    font-size: 1.4rem;
    color: var(--accent);
    flex-shrink: 0;
}

.trust-item div { display: flex; flex-direction: column; line-height: 1.25; text-align: left; }
.trust-item strong { font-size: .85rem; color: var(--ink); font-weight: 600; }
.trust-item span { font-size: .76rem; color: var(--muted); }

/* ---------- Encabezados de sección secundarios ---------- */
.section-heading {
    font-size: 1.5rem;
    font-weight: 700;
}

/* ---------- Categorías destacadas ---------- */
.category-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    padding: 1.6rem 1rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--ink);
    font-weight: 600;
    font-size: .92rem;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    height: 100%;
}

.category-tile i {
    font-size: 1.6rem;
    color: var(--accent);
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    border-radius: 50%;
}

.category-tile:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
    color: var(--ink);
}

/* ---------- Reseñas de clientes ---------- */
.review-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 1.6rem;
    box-shadow: var(--shadow-sm);
}

.review-text {
    color: var(--ink-soft);
    font-size: .93rem;
    font-style: italic;
    line-height: 1.55;
    min-height: 3.2em;
}

/* ---------- Página de producto: galería ---------- */
.thumb-active {
    border: 2px solid var(--accent) !important;
    box-shadow: 0 0 0 2px var(--accent-soft);
}

#mainImage {
    border-radius: var(--radius-lg) !important;
    border: 1px solid var(--line) !important;
    background: #fafafa;
}

.img-thumbnail {
    border-radius: 10px !important;
    border: 1px solid var(--line) !important;
    transition: border-color .15s ease, transform .15s ease;
}

.img-thumbnail:hover { transform: translateY(-2px); border-color: var(--accent) !important; }

#productPrice { color: var(--accent) !important; font-weight: 800; }

/* ---------- Productos relacionados / historial ---------- */
.related-card, .history-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: transform .2s ease, box-shadow .2s ease;
    overflow: hidden;
}

.related-card:hover, .history-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ---------- Footer ---------- */
footer {
    background: var(--ink);
    color: #c7c9d3;
    font-size: .88rem;
}

footer .footer-main { background: var(--ink); }

footer .footer-heading {
    color: #fff;
    font-weight: 700;
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: 1rem;
}

footer .footer-muted { color: #9498a6; }

footer .footer-links, footer .footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: .55rem;
}

footer .footer-links a {
    color: #c7c9d3;
    text-decoration: none;
    font-size: .88rem;
    transition: color .15s ease;
}

footer .footer-links a:hover { color: #fff; }

footer .footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: .55rem;
    color: #c7c9d3;
    font-size: .86rem;
}

footer .footer-contact i { color: var(--accent); margin-top: .15rem; }

footer .social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    transition: background .15s ease, transform .15s ease;
}

footer .social-icon:hover { background: var(--accent); transform: translateY(-2px); }

footer .footer-bottom {
    background: #0c0d10;
    border-top: 1px solid rgba(255,255,255,0.08);
    color: #7b7f8c;
}

/* ---------- Utilidades ---------- */
.main-content { padding-top: .5rem; padding-bottom: 3rem; }

img { image-rendering: -webkit-optimize-contrast; }

@media (max-width: 767px) {
    h1.text-center.mb-4 { font-size: 1.5rem; }
}