/* ========================================
   SISTEMA DE INVENTARIOS - MAQUINARIA PESADA
   Tema: Negro, Blanco, Amarillo Industrial
   ======================================== */

:root {
    --primary-yellow: #FFD700;
    --accent-yellow: #FFC107;
    --dark-yellow: #F5B700;
    --primary-dark: #000000;
    --secondary-dark: #1a1a1a;
    --tertiary-dark: #2d2d2d;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --border-color: #dee2e6;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.25);
    --shadow-yellow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

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

body {
    font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #ffffff;
    color: #212529;
    line-height: 1.6;
    padding-top: 70px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Para usuarios autenticados (con sidebar) */
body.authenticated {
    padding-top: 0;
    background-color: var(--light-gray);
}

/* Navbar */
.navbar-dark {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%) !important;
    border-bottom: 3px solid var(--primary-yellow);
    transition: all 0.4s ease;
}

.navbar-brand {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-yellow) !important;
    transition: all 0.3s ease;
}

.navbar .nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.navbar .nav-link:hover {
    color: var(--primary-yellow) !important;
    transform: translateY(-2px);
}

/* Navbar sticky transparente al hacer scroll */
.navbar.sticky-top {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1030;
    transition: all 0.4s ease;
}

.navbar.navbar-scrolled {
    background: rgba(26, 26, 26, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(255, 193, 7, 0.15);
    border-bottom: 2px solid var(--primary-yellow);
}

.navbar.navbar-scrolled .navbar-brand {
    font-size: 1rem;
}

/* Navbar pública con estilo profesional */
.public-navbar {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%) !important;
    border-bottom: 3px solid var(--primary-yellow);
    padding: 1rem 0;
}

.public-navbar .navbar-brand i {
    color: var(--primary-yellow);
    font-size: 1.5rem;
}

/* ========================================
   NAVBAR INDUSTRIAL - DISEÑO PROFESIONAL
   ======================================== */

.public-navbar-industrial {
    background: var(--secondary-dark) !important;
    border-bottom: 3px solid var(--primary-yellow);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    padding: 0.5rem 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.public-navbar-industrial.navbar-scrolled {
    background: var(--secondary-dark) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-bottom-width: 3px;
    padding: 0.4rem 0;
}

/* Brand Industrial */
.brand-industrial {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.25rem 0;
    transition: transform 0.3s ease;
}

.brand-industrial:hover {
    transform: translateX(3px);
}

.brand-icon-wrapper {
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--dark-yellow) 100%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(255, 215, 0, 0.4);
    position: relative;
    transition: all 0.3s ease;
}

.brand-icon-wrapper::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--primary-yellow), var(--dark-yellow));
    border-radius: 8px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.brand-industrial:hover .brand-icon-wrapper::before {
    opacity: 0.3;
}

.brand-icon-wrapper i {
    font-size: 1.6rem;
    color: var(--primary-dark);
    font-weight: 700;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    gap: 0.1rem;
}

.brand-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1.2px;
}

.brand-subtitle {
    font-size: 0.65rem;
    color: var(--primary-yellow);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding-left: 1px;
}

/* Nav Links Industrial */
.nav-link-industrial {
    color: #ffffff !important;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-size: 0.9rem;
    padding: 0.75rem 1.25rem !important;
    margin: 0 0.25rem;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.nav-link-industrial::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--primary-yellow);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-link-industrial:hover {
    color: var(--primary-yellow) !important;
    transform: translateY(-2px);
    background: rgba(255, 215, 0, 0.1);
}

.nav-link-industrial:hover::after {
    width: 85%;
}

.nav-link-industrial i {
    font-size: 1.1rem;
    vertical-align: middle;
    margin-right: 0.5rem;
}

/* Iconos del navbar también amarillos en hover */
.nav-link-industrial:hover i {
    color: var(--primary-yellow) !important;
}

/* Botón Admin Access */
.btn-admin-access {
    background: transparent;
    border: 2px solid var(--primary-yellow);
    color: var(--primary-yellow);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 0.65rem 1.75rem;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    font-size: 0.9rem;
}

.btn-admin-access::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--dark-yellow) 100%);
    transition: left 0.3s ease;
    z-index: -1;
}

.btn-admin-access:hover {
    color: var(--primary-dark);
    border-color: var(--primary-yellow);
    transform: translateY(-3px);
    box-shadow: var(--shadow-yellow);
}

.btn-admin-access:hover::before {
    left: 0;
}

/* Responsive navbar */
@media (max-width: 991px) {
    .brand-title {
        font-size: 1.1rem;
    }

    .brand-subtitle {
        font-size: 0.6rem;
    }

    .brand-icon-wrapper {
        width: 40px;
        height: 40px;
    }

    .brand-icon-wrapper i {
        font-size: 1.4rem;
    }

    .nav-link-industrial {
        padding: 0.8rem 1rem !important;
        margin: 0.3rem 0;
    }

    .btn-admin-access {
        margin-top: 1rem;
        width: 100%;
    }
}

/* Sidebar Admin */
.sidebar {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--secondary-dark) 0%, var(--tertiary-dark) 100%);
    box-shadow: 2px 0 10px rgba(0,0,0,0.15);
    border-right: 3px solid var(--primary-yellow);
}

.sidebar .nav-link {
    color: rgba(255,255,255,0.8);
    border-radius: 8px;
    margin: 4px 8px;
    padding: 12px 16px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background-color: rgba(255, 193, 7, 0.1);
    color: var(--primary-yellow);
    border-left-color: var(--primary-yellow);
    transform: translateX(5px);
}

.sidebar .nav-link i {
    width: 24px;
    text-align: center;
    margin-right: 12px;
    font-size: 1.1rem;
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
    background: #ffffff;
}

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

.card-header {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--tertiary-dark) 100%);
    color: white;
    border-bottom: 3px solid var(--primary-yellow);
    font-weight: 700;
    padding: 1rem 1.25rem;
}

/* Tables */
.table {
    border-radius: 8px;
    overflow: hidden;
    background: white;
}

.table thead th {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--tertiary-dark) 100%);
    color: white;
    border: none;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    padding: 1rem;
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: rgba(255, 193, 7, 0.05);
}

.table-light {
    background-color: var(--light-gray);
}

/* ========================================
   BUTTONS - SISTEMA COHESIVO
   ======================================== */

.btn {
    border-radius: 8px;
    font-weight: 600;
    padding: 0.65rem 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--dark-yellow) 100%);
    color: var(--primary-dark) !important;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark-yellow) 0%, var(--accent-yellow) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.btn-primary:hover {
    color: var(--primary-dark) !important;
    transform: translateY(-3px);
    box-shadow: var(--shadow-yellow);
}

.btn-primary:hover::before {
    opacity: 1;
}

/* Asegurar que el contenido del botón esté por encima del ::before */
.btn-primary span,
.btn-primary i {
    position: relative;
    z-index: 1;
    color: var(--primary-dark) !important;
}

/* Asegurar que el texto siempre sea negro en botones amarillos */
.btn-primary,
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
.btn-primary:visited,
button.btn-primary,
button.btn-primary:hover,
button.btn-primary:focus,
button.btn-primary:active,
a.btn-primary,
a.btn-primary:hover,
a.btn-primary:focus,
a.btn-primary:active {
    color: var(--primary-dark) !important;
}

/* Iconos en botones primarios también negros */
.btn-primary i,
.btn-primary:hover i,
button.btn-primary i,
button.btn-primary:hover i {
    color: var(--primary-dark) !important;
}

.btn-dark {
    background: var(--primary-dark);
    color: #ffffff;
    border: 2px solid var(--primary-yellow);
}

.btn-dark:hover {
    background: var(--primary-yellow);
    color: var(--primary-dark);
    border-color: var(--primary-yellow);
    transform: translateY(-2px);
    box-shadow: var(--shadow-yellow);
}

.btn-outline-secondary {
    border: 2px solid var(--medium-gray);
    color: var(--medium-gray) !important;
    background: transparent;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus,
.btn-outline-secondary:active {
    background: var(--secondary-dark) !important;
    border-color: var(--secondary-dark) !important;
    color: #ffffff !important;
    transform: translateY(-2px);
}

.btn-warning,
button.btn-warning,
a.btn-warning {
    background: var(--primary-yellow) !important;
    color: var(--primary-dark) !important;
    font-weight: 700;
    position: relative;
}

.btn-warning:hover,
.btn-warning:focus,
.btn-warning:active,
button.btn-warning:hover,
button.btn-warning:focus,
button.btn-warning:active,
a.btn-warning:hover,
a.btn-warning:focus,
a.btn-warning:active {
    background: var(--dark-yellow) !important;
    color: var(--primary-dark) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-yellow);
}

/* Iconos y spans en botones warning también negros */
.btn-warning i,
.btn-warning:hover i,
button.btn-warning i,
button.btn-warning:hover i,
.btn-warning span,
.btn-warning:hover span,
button.btn-warning span,
button.btn-warning:hover span {
    color: var(--primary-dark) !important;
    position: relative;
    z-index: 1;
}

/* FIX: Garantizar que el texto sea siempre negro en botones amarillos */
.btn-warning,
.btn-warning:hover,
.btn-warning:focus,
.btn-warning:active,
.btn-warning:visited,
button.btn-warning,
button.btn-warning:hover,
button.btn-warning:focus,
button.btn-warning:active,
a.btn-warning,
a.btn-warning:hover,
a.btn-warning:focus,
a.btn-warning:active {
    color: var(--primary-dark) !important;
}

/* FIX: Garantizar que iconos sean siempre negros en botones amarillos */
.btn-warning i,
.btn-warning:hover i,
.btn-warning:focus i,
.btn-warning:active i,
button.btn-warning i,
button.btn-warning:hover i,
button.btn-warning:focus i,
button.btn-warning:active i,
a.btn-warning i,
a.btn-warning:hover i,
a.btn-warning:focus i,
a.btn-warning:active i {
    color: var(--primary-dark) !important;
}

/* FIX: Garantizar que spans sean siempre negros en botones amarillos */
.btn-warning span,
.btn-warning:hover span,
.btn-warning:focus span,
.btn-warning:active span,
button.btn-warning span,
button.btn-warning:hover span,
button.btn-warning:focus span,
button.btn-warning:active span,
a.btn-warning span,
a.btn-warning:hover span,
a.btn-warning:focus span,
a.btn-warning:active span {
    color: var(--primary-dark) !important;
}

/* Badges */
.badge {
    padding: 0.5em 0.85em;
    font-weight: 600;
    border-radius: 4px;
}

.bg-warning,
.badge.bg-warning {
    background-color: var(--primary-yellow) !important;
    color: var(--primary-dark) !important;
    font-weight: 700 !important;
}

/* Asegurar que todos los badges tengan buen contraste */
.badge.bg-success {
    background-color: #198754 !important;
    color: #ffffff !important;
}

.badge.bg-danger {
    background-color: #dc3545 !important;
    color: #ffffff !important;
}

/* Alerts */
.alert {
    border-radius: 6px;
    border: none;
    border-left: 4px solid;
    box-shadow: var(--shadow);
}

.alert-warning {
    background-color: #fff9e6;
    border-left-color: var(--primary-yellow);
    color: #856404;
}

.alert-primary {
    background-color: #e6f2ff;
    border-left-color: var(--primary-dark);
}

/* Forms */
.form-control {
    border-radius: 6px;
    border: 2px solid var(--border-color);
    padding: 0.6rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-yellow);
    box-shadow: 0 0 0 0.2rem rgba(255, 193, 7, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

/* ========================================
   CATÁLOGO PÚBLICO - DISEÑO PROFESIONAL
   ======================================== */

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--tertiary-dark) 100%);
    color: white;
    padding: 3rem 0;
    border-bottom: 4px solid var(--primary-yellow);
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 15px,
            rgba(255, 215, 0, 0.03) 15px,
            rgba(255, 215, 0, 0.03) 30px
        );
    pointer-events: none;
}

.hero-section h1 {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

.hero-section .lead {
    color: rgba(255,255,255,0.9);
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.3px;
    position: relative;
    z-index: 1;
}

/* Product Cards */
.product-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 1.5rem;
    height: 100%;
    border: 1px solid var(--border-color);
    overflow: hidden;
    background: #ffffff;
    border-radius: 10px;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    border-color: var(--primary-yellow);
}

/* Botón agregar al carrito en tarjetas */
.product-card .btn-primary.add-to-cart,
.product-card .btn-primary.add-to-cart:hover,
.product-card .btn-primary.add-to-cart:focus,
.product-card .btn-primary.add-to-cart:active {
    color: var(--primary-dark) !important;
}

.product-card .btn-primary.add-to-cart i {
    color: var(--primary-dark) !important;
}

.product-card .card-img-top {
    height: 220px;
    object-fit: cover;
    background: white;
    border-bottom: 3px solid var(--light-gray);
}

.product-card .card-body {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.25rem;
}

.product-card .card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-dark);
    text-transform: uppercase;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.product-card .card-text {
    margin-bottom: 0.5rem;
    color: var(--medium-gray);
}

.product-card code {
    background: #1a1a1a;
    color: var(--primary-yellow);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
}

.product-info {
    background: var(--light-gray);
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

/* Cart Sidebar */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -420px;
    width: 420px;
    height: 100vh;
    background: #ffffff;
    box-shadow: -3px 0 15px rgba(0,0,0,0.2);
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1050;
    overflow-y: auto;
    border-left: 3px solid var(--primary-yellow);
}

.cart-sidebar.show {
    right: 0;
}

.cart-sidebar .cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--tertiary-dark) 100%);
    color: white;
    border-bottom: 3px solid var(--primary-yellow);
}

.cart-sidebar .cart-header h5 {
    margin: 0;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 1.1rem;
}

.cart-sidebar .cart-close {
    margin-left: auto;
    border: none;
    background: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: white;
    transition: color 0.3s ease;
}

.cart-sidebar .cart-close:hover {
    color: var(--primary-yellow);
}

.cart-item {
    padding: 1rem;
    border-bottom: 2px solid var(--light-gray);
    transition: background-color 0.2s ease;
}

.cart-item:hover {
    background-color: rgba(255, 193, 7, 0.05);
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item h6 {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.cart-item small {
    color: var(--medium-gray);
    font-size: 0.85rem;
}

.cart-item code {
    background: #1a1a1a;
    color: var(--primary-yellow);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-weight: 600;
    font-size: 0.8rem;
}

/* Cart overlay */
.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 1040;
    display: none;
}

.cart-overlay.show {
    display: block;
}

/* Cart badge */
#cartCount {
    background: var(--primary-yellow);
    color: #1a1a1a;
    font-size: 0.75rem;
    min-width: 1.4rem;
    height: 1.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
}

/* Product grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Category sections */
.category-section {
    margin-bottom: 3rem;
    padding: 0 1rem;
}

.category-title {
    color: var(--primary-dark);
    border-bottom: 4px solid var(--primary-yellow);
    padding-bottom: 0.75rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: inline-block;
    font-size: 1.5rem;
}

/* Quantity controls */
.quantity-controls {
    display: flex;
    align-items: stretch;
    gap: 0;
}

.quantity-controls .btn {
    padding: 0.5rem 0.75rem;
    background: white;
    color: var(--secondary-dark);
    border: 2px solid var(--secondary-dark);
    font-size: 0.95rem;
    font-weight: 600;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
}

.quantity-controls .btn:hover:not(:disabled) {
    background: var(--primary-yellow);
    color: var(--primary-dark);
    border-color: var(--primary-yellow);
}

.quantity-controls .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.quantity-controls input {
    max-width: 50px;
    min-width: 50px;
    border-left: 0;
    border-right: 0;
    pointer-events: none;
    background-color: white;
    font-weight: 700;
    color: var(--primary-dark);
    border: 2px solid var(--secondary-dark);
    border-left: none !important;
    border-right: none !important;
    text-align: center;
    padding: 0.5rem 0.25rem;
    font-size: 0.95rem;
}

/* Breadcrumb */
.breadcrumb {
    background: white;
    border-radius: 6px;
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow);
}

.breadcrumb-item.active {
    color: var(--primary-dark);
    font-weight: 600;
}

.breadcrumb-item a {
    color: var(--medium-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
    color: var(--primary-yellow);
}

/* Product Detail Page */
.product-image-container {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    border: 3px solid var(--light-gray);
    background: white;
}

.product-image-container img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    padding: 1rem;
}

.no-image-placeholder {
    background: var(--light-gray);
    border: 3px dashed var(--border-color);
    border-radius: 8px;
    padding: 100px;
    text-align: center;
    color: var(--medium-gray);
}

.no-image-placeholder i {
    font-size: 5rem;
    display: block;
    margin-bottom: 1rem;
}

.product-details {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border: 2px solid var(--light-gray);
}

.detail-item {
    padding: 1rem 0;
    border-bottom: 2px solid var(--light-gray);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-item i {
    color: var(--primary-yellow);
    font-size: 1.2rem;
    margin-right: 0.5rem;
}

.detail-item strong {
    color: var(--primary-dark);
    font-weight: 700;
}

/* Quotation Form */
.border-primary {
    border-color: var(--primary-yellow) !important;
}

.text-primary {
    color: var(--primary-dark) !important;
}

/* Loading spinner */
.loading-spinner {
    display: none;
    text-align: center;
    padding: 2rem;
}

.loading-spinner.show {
    display: block;
}

.spinner-border {
    color: var(--primary-yellow);
    border-color: var(--primary-yellow);
    border-right-color: transparent;
}

/* Success/Error states */
.success-message {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    color: white;
    padding: 1rem;
    border-radius: 6px;
    margin: 1rem 0;
    border-left: 4px solid #2e7d32;
}

.error-message {
    background: linear-gradient(135deg, #f44336 0%, #d32f2f 100%);
    color: white;
    padding: 1rem;
    border-radius: 6px;
    margin: 1rem 0;
    border-left: 4px solid #c62828;
}

/* Empty states */
.empty-cart {
    text-align: center;
    padding: 3rem;
    color: var(--medium-gray);
}

.empty-cart i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    color: var(--primary-yellow);
}

/* Quotation button special styling */
#quotateBtn {
    font-weight: 700;
    font-size: 1.1rem;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-yellow) 0%, #ffb300 100%);
    border: none;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-dark) !important;
    position: relative;
}

#quotateBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.4);
    color: var(--primary-dark) !important;
}

#quotateBtn i,
#quotateBtn span,
#quotateBtn:hover i,
#quotateBtn:hover span {
    font-size: 1.3rem;
    margin-right: 0.5rem;
    color: var(--primary-dark) !important;
    position: relative;
    z-index: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -280px;
        width: 280px;
        transition: left 0.3s ease;
        z-index: 1050;
    }

    .sidebar.show {
        left: 0;
    }

    .main-content {
        padding: 1rem;
    }

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .hero-section {
        padding: 2rem 0;
    }

    .hero-section h1 {
        font-size: 1.75rem;
    }
}

@media (max-width: 576px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .cart-sidebar {
        width: 100%;
    }

    .navbar-brand {
        font-size: 1rem;
    }

    .product-card .card-title {
        font-size: 0.9rem;
    }
}

/* Animation classes */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.4s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

.slide-in {
    animation: slideIn 0.4s ease-out;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Utility classes */
.bg-dark-custom {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%) !important;
}

.text-yellow {
    color: var(--primary-yellow) !important;
}

.border-yellow {
    border-color: var(--primary-yellow) !important;
}

.shadow-yellow {
    box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3) !important;
}

/* Additional styles for +1 animation in catalog */
.cart-plus-animation {
    position: absolute;
    bottom: -30px;
    right: 50%;
    transform: translateX(50%);
    background: var(--primary-yellow);
    color: #1a1a1a;
    font-weight: bold;
    font-size: 18px;
    padding: 6px 12px;
    border-radius: 20px;
    animation: plusOneFloat 1s ease-out forwards;
    z-index: 1000;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(255, 193, 7, 0.4);
}

@keyframes plusOneFloat {
    0% {
        opacity: 1;
        transform: translateX(50%) translateY(0) scale(1);
    }
    50% {
        opacity: 1;
        transform: translateX(50%) translateY(-20px) scale(1.2);
    }
    100% {
        opacity: 0;
        transform: translateX(50%) translateY(-40px) scale(0.8);
    }
}

/* Custom toast position */
.custom-toast-position {
    margin-top: 80px !important;
}

/* ========================================
   FIX: CONTRASTE EN BOTONES AMARILLOS
   Forzar texto negro en TODOS los botones amarillos
   ======================================== */

/* Botones "Agregar al carrito" específicos */
.add-to-cart,
button.add-to-cart,
.add-to-cart:hover,
.add-to-cart:focus,
.add-to-cart:active,
button.add-to-cart:hover,
button.add-to-cart:focus,
button.add-to-cart:active {
    color: var(--primary-dark) !important;
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--dark-yellow) 100%) !important;
}

.add-to-cart i,
.add-to-cart:hover i,
button.add-to-cart i,
button.add-to-cart:hover i {
    color: var(--primary-dark) !important;
}

/* Todos los botones con fondo amarillo deben tener texto negro */
[class*="btn"][style*="background"][style*="yellow"],
[class*="btn"][class*="primary"],
[class*="btn"][class*="warning"] {
    color: var(--primary-dark) !important;
}

[class*="btn"][style*="background"][style*="yellow"] i,
[class*="btn"][class*="primary"] i,
[class*="btn"][class*="warning"] i {
    color: var(--primary-dark) !important;
}

/* ========================================
   FOOTER INDUSTRIAL - DISEÑO PROFESIONAL
   ======================================== */

.footer-industrial {
    background: linear-gradient(180deg, var(--secondary-dark) 0%, var(--tertiary-dark) 100%);
    color: rgba(255, 255, 255, 0.9);
    border-top: 3px solid var(--primary-yellow);
    margin-top: 2.5rem;
}

.footer-icon-wrapper {
    background: linear-gradient(135deg, var(--primary-yellow) 0%, var(--dark-yellow) 100%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
}

.footer-icon-wrapper i {
    font-size: 1.3rem;
    color: var(--primary-dark);
    font-weight: 700;
}

.footer-brand-title {
    font-size: 1rem;
    font-weight: 800;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-brand-subtitle {
    font-size: 0.65rem;
    color: var(--primary-yellow);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.footer-title {
    color: #ffffff;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    border-bottom: 2px solid var(--primary-yellow);
    padding-bottom: 0.4rem;
    display: inline-block;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
}

.footer-links a i {
    font-size: 0.7rem;
    margin-right: 0.5rem;
    transition: transform 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-yellow);
    padding-left: 3px;
}

.footer-links a:hover i {
    transform: translateX(2px);
}

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.65rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-contact li i {
    color: var(--primary-yellow);
    margin-right: 0.65rem;
    font-size: 1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.footer-social {
    display: flex;
    gap: 0.65rem;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255, 215, 0, 0.1);
    border: 2px solid rgba(255, 215, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-yellow);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.social-link:hover {
    background: var(--primary-yellow);
    color: var(--primary-dark);
    border-color: var(--primary-yellow);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 215, 0, 0.2);
    padding: 0.75rem 0;
    margin-top: 1rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

.footer-bottom strong {
    color: var(--primary-yellow);
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer-industrial {
        margin-top: 1.5rem;
    }

    .footer-title {
        font-size: 0.9rem;
    }

    .footer-social {
        justify-content: center;
    }
}

/* ========================================
   FIX COMPLETO: GARANTIZAR TEXTO NEGRO EN TODOS LOS BOTONES AMARILLOS
   ======================================== */

/* Regla universal para cualquier botón con fondo amarillo */
.btn-warning,
.btn-primary,
.btn-warning:hover,
.btn-warning:focus,
.btn-warning:active,
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
[class*="btn"][class*="primary"],
[class*="btn"][class*="primary"]:hover,
[class*="btn"][class*="primary"]:focus,
[class*="btn"][class*="primary"]:active,
[class*="btn"][class*="warning"],
[class*="btn"][class*="warning"]:hover,
[class*="btn"][class*="warning"]:focus,
[class*="btn"][class*="warning"]:active,
[class*="btn"][style*="background"][style*="yellow"],
[class*="btn"][style*="background"][style*="yellow"]:hover,
[class*="btn"][style*="background"][style*="yellow"]:focus,
[class*="btn"][style*="background"][style*="yellow"]:active,
[class*="btn"][style*="background-color"][style*="yellow"],
[class*="btn"][style*="background-color"][style*="yellow"]:hover,
[class*="btn"][style*="background-color"][style*="yellow"]:focus,
[class*="btn"][style*="background-color"][style*="yellow"]:active {
    color: var(--primary-dark) !important;
}

/* Regla universal para iconos en botones amarillos */
.btn-warning i,
.btn-warning:hover i,
.btn-warning:focus i,
.btn-warning:active i,
.btn-primary i,
.btn-primary:hover i,
.btn-primary:focus i,
.btn-primary:active i,
[class*="btn"][class*="primary"] i,
[class*="btn"][class*="primary"]:hover i,
[class*="btn"][class*="primary"]:focus i,
[class*="btn"][class*="primary"]:active i,
[class*="btn"][class*="warning"] i,
[class*="btn"][class*="warning"]:hover i,
[class*="btn"][class*="warning"]:focus i,
[class*="btn"][class*="warning"]:active i,
[class*="btn"][style*="background"][style*="yellow"] i,
[class*="btn"][style*="background"][style*="yellow"]:hover i,
[class*="btn"][style*="background"][style*="yellow"]:focus i,
[class*="btn"][style*="background"][style*="yellow"]:active i,
[class*="btn"][style*="background-color"][style*="yellow"] i,
[class*="btn"][style*="background-color"][style*="yellow"]:hover i,
[class*="btn"][style*="background-color"][style*="yellow"]:focus i,
[class*="btn"][style*="background-color"][style*="yellow"]:active i {
    color: var(--primary-dark) !important;
}

/* Regla universal para spans en botones amarillos */
.btn-warning span,
.btn-warning:hover span,
.btn-warning:focus span,
.btn-warning:active span,
.btn-primary span,
.btn-primary:hover span,
.btn-primary:focus span,
.btn-primary:active span,
[class*="btn"][class*="primary"] span,
[class*="btn"][class*="primary"]:hover span,
[class*="btn"][class*="primary"]:focus span,
[class*="btn"][class*="primary"]:active span,
[class*="btn"][class*="warning"] span,
[class*="btn"][class*="warning"]:hover span,
[class*="btn"][class*="warning"]:focus span,
[class*="btn"][class*="warning"]:active span,
[class*="btn"][style*="background"][style*="yellow"] span,
[class*="btn"][style*="background"][style*="yellow"]:hover span,
[class*="btn"][style*="background"][style*="yellow"]:focus span,
[class*="btn"][style*="background"][style*="yellow"]:active span,
[class*="btn"][style*="background-color"][style*="yellow"] span,
[class*="btn"][style*="background-color"][style*="yellow"]:hover span,
[class*="btn"][style*="background-color"][style*="yellow"]:focus span,
[class*="btn"][style*="background-color"][style*="yellow"]:active span {
    color: var(--primary-dark) !important;
}

/* Regla universal para cualquier elemento dentro de botones amarillos */
.btn-warning *,
.btn-primary *,
[class*="btn"][class*="primary"] *,
[class*="btn"][class*="warning"] *,
[class*="btn"][style*="background"][style*="yellow"] *,
[class*="btn"][style*="background-color"][style*="yellow"] * {
    color: var(--primary-dark) !important;
}

/* FIX ESPECÍFICO: Botones con gradientes amarillos */
[class*="btn"][style*="gradient"][style*="yellow"],
[class*="btn"][style*="gradient"][style*="yellow"]:hover,
[class*="btn"][style*="gradient"][style*="yellow"]:focus,
[class*="btn"][style*="gradient"][style*="yellow"]:active {
    color: var(--primary-dark) !important;
}

[class*="btn"][style*="gradient"][style*="yellow"] i,
[class*="btn"][style*="gradient"][style*="yellow"]:hover i,
[class*="btn"][style*="gradient"][style*="yellow"]:focus i,
[class*="btn"][style*="gradient"][style*="yellow"]:active i,
[class*="btn"][style*="gradient"][style*="yellow"] span,
[class*="btn"][style*="gradient"][style*="yellow"]:hover span,
[class*="btn"][style*="gradient"][style*="yellow"]:focus span,
[class*="btn"][style*="gradient"][style*="yellow"]:active span {
    color: var(--primary-dark) !important;
}