/* =========================================
   B2+ - Estilos modernos
   ========================================= */
:root {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-input: #0f172a;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --primary: #38bdf8;
    --primary-hover: #0ea5e9;
    --accent: #22d3ee;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --border: #334155;
    --shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
    --radius: 12px;
    --transition: 0.25s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Navbar ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.nav-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    flex-wrap: wrap;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text);
}
.brand-icon { font-size: 1.5rem; filter: drop-shadow(0 0 8px var(--primary)); }
.brand-accent { color: var(--primary); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--muted);
    font-size: 0.95rem;
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius);
    transition: var(--transition);
    border: 1px solid transparent;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

.nav-btn {
    background: var(--primary);
    color: #000 !important;
    font-weight: 700;
    padding: 0.5rem 1.1rem;
    border-radius: 999px;
}
.nav-btn:hover { background: var(--primary-hover); color: #000 !important; }
.nav-btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text) !important;
}
.nav-btn-outline:hover { border-color: var(--primary); color: var(--primary) !important; }

/* ---------- Alerts ---------- */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    border: 1px solid transparent;
    animation: slideDown 0.3s ease;
}
.alert-success { background: rgba(34,197,94,0.1); border-color: var(--success); color: var(--success); }
.alert-error, .alert-danger { background: rgba(239,68,68,0.1); border-color: var(--danger); color: var(--danger); }
.alert-info { background: rgba(56,189,248,0.1); border-color: var(--primary); color: var(--primary); }
.alert-warning { background: rgba(245,158,11,0.1); border-color: var(--warning); color: var(--warning); }

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- Botones ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.4rem;
    border-radius: var(--radius);
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: #000; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #16a34a; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }

.btn-full { width: 100%; }

/* ---------- Hero ---------- */
.hero {
    padding: 4rem 0 2rem;
    text-align: center;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.hero h1 .grad { background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p {
    color: var(--muted);
    font-size: 1.1rem;
    max-width: 650px;
    margin: 0 auto 2rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}
.stat strong { display: block; font-size: 1.75rem; color: var(--primary); }
.stat span { color: var(--muted); font-size: 0.9rem; }

/* ---------- Sección productos ---------- */
.section { padding: 3rem 0; }
.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.card-img {
    height: 180px;
    width: 100%;
    object-fit: cover;
    background: var(--bg-input);
    border-bottom: 1px solid var(--border);
}
.card-body { padding: 1.25rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.card-category {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
}
.card-title { font-size: 1.05rem; font-weight: 700; color: var(--text); }
.card-desc {
    font-size: 0.85rem;
    color: var(--muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.4);
}
.card-price { font-weight: 800; font-size: 1.1rem; color: var(--success); }
.card-actions { margin-top: auto; }

/* ---------- Detalle producto ---------- */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 2rem;
    margin-top: 1.5rem;
}
.product-gallery .main-img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-input);
}
.product-info h2 { font-size: 1.75rem; margin-bottom: 0.5rem; }
.product-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
.product-price-big {
    font-size: 2rem;
    font-weight: 800;
    color: var(--success);
    margin: 1rem 0;
}
.product-total {
    background: var(--bg-input);
    border: 1px solid var(--border);
    padding: 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}
.product-total .label { color: var(--muted); font-size: 0.9rem; }
.product-total .value { font-size: 1.5rem; font-weight: 800; color: var(--text); }

.product-description {
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.7;
    white-space: pre-wrap;
}

/* ---------- Formularios ---------- */
.form-section {
    max-width: 460px;
    margin: 2rem auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.form-section h2 { margin-bottom: 1.5rem; font-size: 1.5rem; text-align: center; }

.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 600;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(56,189,248,0.15);
}
.form-group small { color: var(--muted); font-size: 0.8rem; }

.form-actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; }
.form-actions .btn { flex: 1; }

/* ---------- Panel vendedor ---------- */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.panel-title { font-size: 1.5rem; font-weight: 700; }
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: var(--radius);
}
.stat-card .value { font-size: 1.75rem; font-weight: 800; color: var(--primary); }
.stat-card .label { color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
th { background: rgba(15,23,42,0.3); color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; }
tr:hover { background: rgba(255,255,255,0.02); }

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--muted);
}

/* ---------- Pagos ---------- */
.pay-card {
    max-width: 520px;
    margin: 2rem auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}
.pay-card h2 { margin-bottom: 0.5rem; }
.pay-total { font-size: 2rem; font-weight: 800; color: var(--primary); margin: 1rem 0; }
.pay-breakdown { display: flex; flex-direction: column; gap: 0.5rem; text-align: left; margin-bottom: 1.5rem; font-size: 0.9rem; color: var(--muted); }
.pay-breakdown b { color: var(--text); }

.wompi-banner {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    margin: 2rem 0;
    background: rgba(56,189,248,0.05);
}
.wompi-banner b { color: var(--primary); }

/* ---------- Utilidades ---------- */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.small { font-size: 0.85rem; color: var(--muted); }
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}
.badge-active { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-pending { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-paid { background: rgba(56,189,248,0.15); color: var(--primary); }

/* ---------- Botón de notificaciones ---------- */
.nav-notif {
    position: relative;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1.1rem;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.nav-notif:hover { border-color: var(--primary); background: rgba(56,189,248,0.1); }
.notif-dot {
    display: none;
    position: absolute;
    top: 4px;
    right: 4px;
    width: 9px;
    height: 9px;
    background: var(--danger);
    border-radius: 50%;
    box-shadow: 0 0 0 2px var(--bg-card);
    animation: pulse 1.8s infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.35); opacity: 0.7; }
}

/* ---------- Banner sin conexión ---------- */
.offline-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 300;
    background: var(--warning);
    color: #000;
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ---------- Toasts / notificaciones en pantalla ---------- */
.b2-toasts {
    position: fixed;
    bottom: 90px;
    right: 16px;
    z-index: 400;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    max-width: 340px;
    pointer-events: none;
}
.b2-toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    color: var(--text);
    padding: 0.9rem 1.1rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    font-size: 0.9rem;
    animation: toastIn 0.3s ease;
    pointer-events: auto;
}
.b2-toast-success { border-left-color: var(--success); }
.b2-toast-error { border-left-color: var(--danger); }
.b2-toast-warning { border-left-color: var(--warning); }
.b2-toast-info { border-left-color: var(--primary); }
.b2-toast-out { opacity: 0; transform: translateX(30px); transition: all 0.35s ease; }
@keyframes toastIn {
    from { opacity: 0; transform: translateY(20px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---------- Feedback táctil ---------- */
.card.touched, .btn.touched, .bn-item.touched {
    transform: scale(0.97);
    filter: brightness(0.92);
}

/* ---------- Navegación inferior app móvil ---------- */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
    padding: 0.4rem 0.5rem calc(0.4rem + env(safe-area-inset-bottom, 0px));
    justify-content: space-around;
    align-items: center;
}
.bn-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.35rem 0.6rem;
    border-radius: 10px;
    transition: var(--transition);
    min-width: 64px;
}
.bn-item:hover, .bn-item:active { color: var(--primary); background: rgba(56,189,248,0.08); }
.bn-icon { font-size: 1.25rem; line-height: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .product-detail { grid-template-columns: 1fr; }
    .product-gallery .main-img { height: 300px; }
    .hero { padding: 2.5rem 0 1.5rem; }
    .hero h1 { font-size: 1.9rem; }
    .hero p { font-size: 1rem; }
    .hero-stats { gap: 1.25rem; }
}

@media (max-width: 768px) {
    body { padding-bottom: 76px; }
    .bottom-nav { display: flex; }
    .nav-links { display: none; }
    .nav-notif { display: inline-flex; }
    .nav-flex { height: 62px; }
    .brand { font-size: 1.1rem; }
    .products-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.85rem; }
    .card-img { height: 140px; }
    .card-body { padding: 0.9rem; gap: 0.35rem; }
    .card-title { font-size: 0.95rem; }
    .card-desc { font-size: 0.78rem; -webkit-line-clamp: 2; }
    .card-footer { padding: 0.75rem 0.9rem; flex-wrap: wrap; }
    .card-price { font-size: 0.95rem; }
    .form-section { margin: 1rem; padding: 1.5rem 1rem; }
    .pay-card { margin: 1rem; padding: 1.5rem 1rem; }
    .panel-header { flex-direction: column; align-items: stretch; }
    .panel-header .btn { width: 100%; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .stat-card { padding: 1rem; }
    .stat-card .value { font-size: 1.3rem; }
    .table-wrap { border-radius: 10px; }
    th, td { padding: 0.7rem; font-size: 0.8rem; }
    .b2-toasts { left: 12px; right: 12px; bottom: 84px; max-width: none; }
    .product-price-big { font-size: 1.7rem; }
    .form-actions { flex-direction: column; }
    .form-actions .btn { width: 100%; }
    .wompi-banner { padding: 1.25rem; }
}

@media (max-width: 480px) {
    .products-grid { grid-template-columns: 1fr; }
    .card-img { height: 190px; }
    .stats-row { grid-template-columns: 1fr; }
    .hero h1 { font-size: 1.65rem; }
}

/* ---------- Accesibilidad / reducción de movimiento ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}



/* =========================================================
   B2+ - UX Avanzada: Búsqueda, Checkout Seguro y Confianza
   ========================================================= */

/* ---------- Navbar Buscador & Usuario ---------- */
.nav-search-wrap {
    flex: 1;
    max-width: 320px;
    margin: 0 0.5rem;
}
.nav-search-form {
    position: relative;
    display: flex;
    align-items: center;
}
.nav-search-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--muted);
    font-size: 0.9rem;
    pointer-events: none;
}
.nav-search-input {
    width: 100%;
    padding: 0.45rem 0.8rem 0.45rem 2.2rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.7);
    color: var(--text);
    font-size: 0.85rem;
    transition: var(--transition);
}
.nav-search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}
.nav-user-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.8rem !important;
    background: rgba(56, 189, 248, 0.1) !important;
    border: 1px solid rgba(56, 189, 248, 0.3) !important;
    border-radius: 999px !important;
    color: var(--text) !important;
}
.user-avatar-mini { font-size: 0.95rem; }
.user-name-short {
    font-size: 0.85rem;
    font-weight: 600;
    max-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.nav-link-logout {
    color: var(--muted) !important;
    font-size: 0.85rem !important;
    padding: 0.35rem 0.6rem !important;
}
.nav-link-logout:hover { color: var(--danger) !important; }
.nav-badge-link {
    color: var(--accent) !important;
    font-weight: 600 !important;
}

/* ---------- Hero Badge & Buscador Central ---------- */
.hero-badge-top {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 1rem;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    font-size: 0.82rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1.25rem;
}
.hero-search-box {
    max-width: 680px;
    margin: 2rem auto 0;
}
.search-form { width: 100%; }
.search-input-group {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 999px;
    padding: 0.35rem 0.4rem 0.35rem 1.25rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    transition: var(--transition);
}
.search-input-group:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.2);
}
.search-input-group .search-icon {
    font-size: 1.2rem;
    color: var(--primary);
    margin-right: 0.75rem;
}
.search-input-group input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 1rem;
    outline: none;
    font-family: inherit;
}
.btn-clear-search {
    color: var(--muted);
    padding: 0.3rem 0.6rem;
    font-size: 0.9rem;
    border-radius: 50%;
    margin-right: 0.3rem;
}
.btn-clear-search:hover { color: var(--text); background: rgba(255,255,255,0.1); }
.btn-search-submit {
    border-radius: 999px;
    padding: 0.7rem 1.6rem;
    font-weight: 700;
}

/* ---------- Barra de Confianza (Trust Bar) ---------- */
.trust-bar-section {
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: rgba(30, 41, 59, 0.4);
}
.trust-bar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.trust-bar-card {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.t-icon {
    font-size: 1.8rem;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(56, 189, 248, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(56, 189, 248, 0.2);
}
.t-title {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text);
    margin-bottom: 0.15rem;
}
.t-desc {
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.35;
}

/* ---------- Encabezado de Catálogo & Filtros ---------- */
.catalog-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.sort-form {
    display: flex;
    align-items: center;
}
.sort-select {
    padding: 0.45rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    font-size: 0.85rem;
    cursor: pointer;
}

/* Chips de categorías */
.category-chips {
    display: flex;
    gap: 0.6rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}
.chip {
    padding: 0.5rem 1.1rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 600;
    transition: var(--transition);
}
.chip:hover {
    color: var(--text);
    border-color: var(--primary);
    transform: translateY(-1px);
}
.chip.active {
    background: var(--primary);
    color: #000;
    font-weight: 700;
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.35);
}

/* Tarjeta producto enriquecida */
.product-card-item {
    position: relative;
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
.product-card-item:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 189, 248, 0.6);
    box-shadow: 0 14px 35px rgba(0,0,0,0.5);
}
.card-image-link {
    position: relative;
    display: block;
    overflow: hidden;
}
.card-image-link img {
    transition: transform 0.4s ease;
}
.product-card-item:hover .card-image-link img {
    transform: scale(1.05);
}
.badge-card-top {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(6px);
    border: 1px solid var(--border);
    font-size: 0.72rem;
    color: var(--accent);
}
.card-vendor-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--muted);
}
.stock-indicator {
    color: var(--success);
    font-weight: 600;
}
.card-price-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.price-box {
    display: flex;
    flex-direction: column;
}
.price-label {
    font-size: 0.72rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.badge-shipping {
    font-size: 0.72rem;
    background: rgba(34, 197, 94, 0.12);
    color: var(--success);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-weight: 600;
}

/* Barra de acciones en tarjeta con botón de compra público */
.card-action-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: 0.9rem 1.25rem 1.2rem;
    background: rgba(15, 23, 42, 0.3);
    border-top: 1px solid var(--border);
}
.btn-card-buy {
    background: var(--primary);
    color: #000;
    font-weight: 800;
    padding: 0.6rem;
    border-radius: 8px;
    font-size: 0.88rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.25);
}
.btn-card-buy:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}
.btn-card-details {
    padding: 0.6rem;
    border-radius: 8px;
    font-size: 0.88rem;
    text-align: center;
}

/* Empty state para catálogo */
.empty-state-card {
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 4rem 2rem;
    text-align: center;
}

/* ---------- Pasos (Cómo funciona) ---------- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    text-align: left;
}
.step-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    overflow: hidden;
}
.step-num {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 3.5rem;
    font-weight: 900;
    color: rgba(255,255,255,0.03);
    line-height: 1;
    pointer-events: none;
}
.step-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}
.step-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

/* ---------- Checkout Seguro UI ---------- */
.checkout-header-badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.75rem;
}
.security-shield {
    font-size: 2.2rem;
    background: rgba(34, 197, 94, 0.15);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.checkout-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2rem;
    align-items: start;
}
.checkout-box, .checkout-summary-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}
.checkout-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    padding: 0.35rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
}
.checkout-tab {
    background: transparent;
    border: none;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.65rem 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}
.checkout-tab.active {
    background: var(--bg-card);
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* Password Toggle */
.password-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.password-wrap input {
    padding-right: 3rem;
}
.btn-toggle-pw {
    position: absolute;
    right: 0.75rem;
    background: transparent;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--muted);
    padding: 0.25rem;
}
.btn-toggle-pw:hover { opacity: 0.8; }

/* Aviso de Confianza Checkout */
.trust-notice-box {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 10px;
    padding: 0.9rem 1rem;
    font-size: 0.84rem;
    color: var(--muted);
    line-height: 1.45;
}
.trust-notice-box span { font-size: 1.25rem; flex-shrink: 0; }
.trust-notice-box strong { color: var(--text); }

/* Resumen de Pedido Checkout */
.checkout-product-card {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px;
}
.checkout-thumb {
    width: 70px;
    height: 70px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--bg-card);
    border: 1px solid var(--border);
    flex-shrink: 0;
}
.checkout-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 2px dashed var(--border);
    padding-top: 0.9rem;
    margin-top: 0.9rem;
    font-weight: 800;
}
.checkout-total-row span:first-child {
    font-size: 1.05rem;
    color: var(--text);
}
.total-number {
    font-size: 1.6rem;
    color: var(--primary);
}

/* Sellos de Confianza */
.trust-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}
.trust-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}
.trust-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}
.trust-item strong {
    font-size: 0.88rem;
    color: var(--text);
    display: block;
    margin-bottom: 0.1rem;
}

/* Ficha de Producto / Garantías */
.product-guarantee-box {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin: 1.5rem 0;
}
.guarantee-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}
.g-icon { font-size: 1.25rem; flex-shrink: 0; }
.guarantee-item strong { font-size: 0.9rem; color: var(--text); display: block; }
.trust-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid var(--border);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.78rem;
    color: var(--muted);
    font-weight: 600;
}

/* Sesión Activa Pill */
.user-session-pill {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.25);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
}

/* Responsividad Checkout & Búsqueda */
@media (max-width: 900px) {
    .checkout-grid { grid-template-columns: 1fr; }
    .trust-bar-grid { grid-template-columns: 1fr; gap: 1rem; }
    .nav-search-wrap { display: none; }
}

@media (max-width: 600px) {
    .search-input-group {
        border-radius: 12px;
        flex-wrap: wrap;
        padding: 0.5rem;
    }
    .search-input-group input {
        min-width: 140px;
    }
    .btn-search-submit {
        width: 100%;
        margin-top: 0.5rem;
    }
    .card-action-bar {
        grid-template-columns: 1fr;
    }
    .checkout-box, .checkout-summary-box {
        padding: 1.25rem 1rem;
    }
}