/* ===== Variables CSS ===== */
:root {
    /* Colores principales del sistema */
    --primary: #4CAF50;        /* Color principal (botones, enlaces, acciones) */
    --primary-dark: #388E3C;   /* Versión más oscura del primario (hover, estados activos) */
    --primary-light: #C8E6C9;  /* Versión clara del primario (fondos suaves) */

    --secondary: #03DAC6;      /* Color secundario para elementos alternativos */
    --accent: #FF5722;         /* Color de énfasis (llamados de atención o acciones importantes) */

    /* Estados del sistema */
    --danger: #DC3545;         /* Errores, eliminar, acciones críticas */
    --warning: #FFC107;        /* Advertencias */
    --success: #28A745;        /* Confirmaciones exitosas */
    --info: #17A2B8;           /* Información general */

    /* Escala de grises para diseño UI */
    --gray-50: #F9FAFB;        /* Fondo muy claro */
    --gray-100: #F3F4F6;       /* Fondo claro */
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;       /* Texto secundario */
    --gray-500: #6B7280;       /* Texto normal */
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;       /* Texto oscuro */
    --gray-900: #111827;       /* Texto muy oscuro */

    /* Rosa principal vívido */
    --pink-50:  #ffe6f2;
    --pink-100: #ffb3d9;
    --pink-200: #ff80c2;
    --pink-300: #ff4da6;
    --pink-400: #ff1a8c;
    --pink-500: #ff007f;  /* rosa principal fuerte */
    --pink-600: #e60073;
    --pink-700: #cc0066;
    --pink-800: #99004d;
    --pink-900: #660033;

    /* Extra neón para efectos */
    --pink-neon: #ff00aa;
    --pink-hot: #ff0066;
    /* Colores base */
    --white: #FFFFFF;
    --black: #000000;

    /* Tipografía principal del sistema */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Bordes redondeados */
    --border-radius: 8px;      /* Radio estándar */
    --border-radius-lg: 12px;  /* Radio grande para cards o modales */

    /* Sombras para profundidad */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    /* Transiciones para animaciones suaves */
    --transition: all 0.2s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

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

.btn-secondary {
    background-color: var(--gray-600);
    color: var(--white);
    border-color: var(--gray-600);
}

.btn-secondary:hover {
    background-color: var(--gray-700);
    border-color: var(--gray-700);
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    color: var(--black);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.btn-danger {
    background-color: var(--danger);
    color: var(--white);
    border-color: var(--danger);
}

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
    color: var(--white);
}

.btn-success {
    background-color: var(--success);
    color: var(--white);
    border-color: var(--success);
}

.btn-success:hover {
    background-color: #218838;
    border-color: #1e7e34;
    color: var(--white);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--gray-900);
    background-color: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control::placeholder {
    color: var(--gray-400);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25em 1.25em;
    padding-right: 2.5rem;
}

/* ===== Cards ===== */
.card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

/* ===== Alerts ===== */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    transition: opacity 0.3s ease;
}

.alert-success {
    background-color: #D4EDDA;
    color: #155724;
    border: 1px solid #C3E6CB;
}

.alert-error {
    background-color: #F8D7DA;
    color: #721C24;
    border: 1px solid #F5C6CB;
}

.alert-warning {
    background-color: #FFF3CD;
    color: #856404;
    border: 1px solid #FFEEBA;
}

.alert-info {
    background-color: #D1ECF1;
    color: #0C5460;
    border: 1px solid #BEE5EB;
}

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    border-radius: 9999px;
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

.badge-success {
    background-color: #D4EDDA;
    color: #155724;
}

.badge-warning {
    background-color: #FFF3CD;
    color: #856404;
}

.badge-danger {
    background-color: #F8D7DA;
    color: #721C24;
}

.badge-info {
    background-color: #D1ECF1;
    color: #0C5460;
}

/* ===== Navbar ===== */
.navbar {
    background-color: var(--warning);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
}

.logo:hover {
    color: var(--primary-dark);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--black);
    border-radius: var(--border-radius);
}

.nav-link:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.nav-link.active {
    background-color: var(--primary-light);
    color: var(--black);
}

.nav-link svg {
    width: 18px;
    height: 18px;
}

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

.cart-link {
    position: relative;
}

.cart-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background-color: var(--danger);
    color: var(--white);
    font-size: 0.625rem;
    font-weight: 600;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* User Dropdown */
.user-dropdown {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    background: none;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.user-btn:hover {
    background-color: var(--gray-100);
}

.user-btn svg {
    width: 18px;
    height: 18px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    margin-top: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.user-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    color: var(--gray-700);
    border-radius: var(--border-radius);
}

.dropdown-item:hover {
    background-color: var(--gray-100);
}

.dropdown-item svg {
    width: 16px;
    height: 16px;
}

.dropdown-divider {
    height: 1px;
    background-color: var(--gray-200);
    margin: 0.5rem 0;
}

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

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--gray-600);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background-color: var(--white);
    border-top: 1px solid var(--gray-200);
    padding: 1rem;
}

.mobile-menu.active {
    display: flex;
}

.mobile-link {
    padding: 0.75rem;
    color: var(--gray-700);
    border-radius: var(--border-radius);
}

.mobile-link:hover {
    background-color: var(--gray-100);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

.flash-container {
    padding-top: 1rem;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer-section h4 svg {
    width: 20px;
    height: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer-section li svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

.footer-section a {
    color: var(--gray-400);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-700);
}

.footer-bottom p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===== Page Header ===== */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--gray-600);
    margin: 0;
}

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

/* ===== Card ===== */
.product-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.product-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* ===== Image ===== */
.product-image {
    display: block; /* CLAVE */
    position: relative;
    aspect-ratio: 4 / 3;
    background-color: var(--gray-100);
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/* ===== Badge ===== */
.product-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
}

/* ===== Content ===== */
.product-content {
    padding: 1rem;
}

/* ===== Store ===== */
.product-tienda {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.product-tienda svg {
    width: 14px;
    height: 14px;
}

/* ===== Name ===== */
.product-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-decoration: none;
}

.product-name:hover {
    color: var(--primary);
}

/* ===== Price ===== */
.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pink-700);
}

/* ===== Actions ===== */
.product-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.product-actions form {
    flex: 1;
}

/* ===== Store Grid ===== */
.stores-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.store-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.store-card:hover {
    box-shadow: var(--shadow-md);
}

.store-header {
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.store-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    object-fit: cover;
    background-color: var(--gray-100);
}

.store-info {
    flex: 1;
}

.store-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.store-category {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.store-content {
    padding: 0 1.5rem 1.5rem;
}

.store-eslogan {
    font-style: italic;
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.store-contact {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.store-contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.store-contact svg {
    width: 14px;
    height: 14px;
}

/* ===== Tables ===== */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table th,
.table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    background-color: var(--gray-50);
    color: var(--gray-700);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr:hover {
    background-color: var(--gray-50);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.stat-card .icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.stat-card .icon svg {
    width: 24px;
    height: 24px;
}

.stat-card .icon.primary {
    background-color: var(--primary-light);
    color: var(--primary);
}

.stat-card .icon.info {
    background-color: #D1ECF1;
    color: var(--info);
}

.stat-card .icon.warning {
    background-color: #FFF3CD;
    color: var(--warning);
}

.stat-card .icon.success {
    background-color: #D4EDDA;
    color: var(--success);
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.stat-card .label {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

/* ===== Auth Pages ===== */
.auth-container {
    max-width: 400px;
    margin: 2rem auto;
}

.auth-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--gray-600);
    margin: 0;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--gray-600);
}

/* ===== Cart ===== */
.cart-item {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-200);
}

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

.cart-item-image {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius);
    object-fit: cover;
    background-color: var(--gray-100);
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.cart-item-price {
    color: var(--primary);
    font-weight: 600;
}

.cart-item-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cart-summary {
    background-color: var(--gray-50);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* ===== Admin Sidebar Layout ===== */
.admin-layout {
    display: flex;
    gap: 2rem;
}

.admin-sidebar {
    width: 250px;
    flex-shrink: 0;
}

.admin-sidebar .card {
    position: sticky;
    top: 80px;
}

.admin-nav {
    list-style: none;
}

.admin-nav-item {
    margin-bottom: 0.25rem;
}

.admin-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    border-radius: var(--border-radius);
    font-size: 0.9375rem;
}

.admin-nav-link:hover {
    background-color: var(--gray-100);
}

.admin-nav-link.active {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 500;
}

.admin-nav-link svg {
    width: 18px;
    height: 18px;
}

.admin-content {
    flex: 1;
    min-width: 0;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state svg {
    width: 64px;
    height: 64px;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

/* ===== Quantity Input ===== */
.quantity-input {
    display: flex;
    align-items: center;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.quantity-input button {
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
}

.quantity-input button:hover {
    background-color: var(--gray-100);
}

.quantity-input input {
    width: 50px;
    height: 36px;
    text-align: center;
    border: none;
    border-left: 1px solid var(--gray-300);
    border-right: 1px solid var(--gray-300);
    font-size: 0.875rem;
}

.quantity-input input:focus {
    outline: none;
}

/* ===== Search & Filters ===== */
.search-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.search-bar .form-control {
    flex: 1;
}

.filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    background-color: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: 9999px;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--gray-400);
}

.filter-btn.active {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* ===== Color Input ===== */
.color-input-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.color-input-wrapper input[type="color"] {
    width: 50px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    cursor: pointer;
}

.color-input-wrapper input[type="text"] {
    flex: 1;
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-small { font-size: 0.875rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

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

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .admin-layout {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
    }
    
    .admin-sidebar .card {
        position: static;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .nav-links {
        display: none;
    }
    
    .nav-actions .btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stores-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 400px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .search-bar {
        flex-direction: column;
    }
}