/* ========================================
   RUNEM Staff App - CSS Unificado y Responsive
   ======================================== */

/* Reset y configuración base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores principales */
    --color-primary: #E5B639;
    --color-primary-dark: #d4a730;
    --color-secondary: #8B4513;
    --color-accent: #D2691E;
    
    /* Grises y neutros */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    
    /* Estados */
    --color-success: #28a745;
    --color-success-light: #51cf66;
    --color-warning: #ffc107;
    --color-error: #dc3545;
    --color-error-light: #ff6b6b;
    --color-info: #17a2b8;
    
    /* Backgrounds */
    --bg-primary: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    --bg-card: rgba(255, 255, 255, 0.1);
    --bg-card-hover: rgba(255, 255, 255, 0.15);
    --bg-sidebar: rgba(0, 0, 0, 0.8);
    --bg-overlay: rgba(0, 0, 0, 0.5);
    
    /* Bordes */
    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.2);
    --border-dark: rgba(255, 255, 255, 0.3);
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Radios */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transiciones */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    
    /* Z-indexes */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-white);
    background: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ========================================
   UTILIDADES GLOBALES
   ======================================== */

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* ========================================
   LOGIN PAGE
   ======================================== */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-logo {
    width: 80px;
    height: auto;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--color-transparent);
    padding: var(--spacing-sm);
}

.login-header h1 {
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.login-header p {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

.login-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* ========================================
   DASHBOARD LAYOUT
   ======================================== */

.dashboard {
    min-height: 100vh;
    display: flex;
    position: relative;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: var(--z-fixed);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    color: var(--color-white);
    cursor: pointer;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.mobile-menu-toggle:hover {
    background: var(--bg-card-hover);
}

.mobile-menu-toggle i {
    font-size: var(--font-size-lg);
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar {
    width: 280px;
    background: var(--bg-sidebar);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border-light);
    padding: var(--spacing-lg) 0;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: var(--z-fixed);
    overflow-y: auto;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.sidebar-header img {
    width: 64px;
    height: auto;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--color-transparent);
    padding: var(--spacing-sm);
}

.sidebar-header h2 {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.sidebar-nav {
    list-style: none;
    padding: 0 var(--spacing-md);
}

.sidebar-nav li {
    margin-bottom: var(--spacing-xs);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-white);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: var(--color-primary);
    color: var(--color-black);
    transform: translateX(4px);
}

.sidebar-nav i {
    margin-right: var(--spacing-md);
    width: 18px;
    text-align: center;
    font-size: var(--font-size-base);
}

/* Sidebar overlay para móvil */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
    z-index: calc(var(--z-fixed) - 1);
}

/* ========================================
   MAIN CONTENT
   ======================================== */

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: var(--spacing-xl);
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.main-header h1 {
    color: var(--color-primary);
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-3xl));
    font-weight: 600;
    margin: 0;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.user-info {
    text-align: right;
}

.user-info .user-name {
    color: var(--color-white);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.user-info .user-role {
    color: var(--color-gray-400);
    font-size: var(--font-size-xs);
    text-transform: capitalize;
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(var(--color-error), 0.2);
    color: var(--color-error-light);
    border: 1px solid rgba(var(--color-error), 0.3);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-normal);
}

.logout-btn:hover {
    background: rgba(var(--color-error), 0.3);
    transform: translateY(-1px);
}

/* ========================================
   WELCOME BRANDING
   ======================================== */

.welcome-branding {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
}

.welcome-branding img {
    height: 80px;
    width: auto;
    border-radius: var(--radius-lg);
    background: var(--color-transparent);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.welcome-branding h2 {
    margin: 0;
    color: var(--color-secondary);
    font-weight: 700;
    font-size: clamp(var(--font-size-xl), 3vw, var(--font-size-2xl));
}

.welcome-branding div:last-child {
    color: var(--color-gray-300);
    font-size: var(--font-size-lg);
    margin-top: var(--spacing-sm);
}

/* ========================================
   CARDS Y CONTENEDORES
   ======================================== */

.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.card-title {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-body {
    padding: 0;
}

.content-description {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
}

.content-description h2 {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.content-description p {
    color: var(--color-gray-300);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ========================================
   STATISTICS GRID
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: var(--bg-card-hover);
}

.stat-number {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.stat-label {
    color: var(--color-gray-300);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   TABLAS
   ======================================== */

.table-container {
    overflow-x: auto;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    margin-top: var(--spacing-lg);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.table th,
.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.table th {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: sticky;
    top: 0;
    z-index: 10;
}

.table td {
    color: var(--color-white);
    transition: var(--transition-fast);
}

.table tbody tr {
    transition: var(--transition-fast);
}

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

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

/* Estados en tablas */
.status {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-pending {
    background: rgba(255, 193, 7, 0.2);
    color: var(--color-warning);
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.status-confirmed {
    background: rgba(40, 167, 69, 0.2);
    color: var(--color-success-light);
    border: 1px solid rgba(40, 167, 69, 0.3);
}

.status-cancelled {
    background: rgba(220, 53, 69, 0.2);
    color: var(--color-error-light);
    border: 1px solid rgba(220, 53, 69, 0.3);
}

/* Estados de mesas */
.status-success {
    background: rgba(40, 167, 69, 0.2);
    color: var(--color-success-light);
    border: 1px solid rgba(40, 167, 69, 0.3);
}

.status-danger {
    background: rgba(220, 53, 69, 0.2);
    color: var(--color-error-light);
    border: 1px solid rgba(220, 53, 69, 0.3);
}

.status-warning {
    background: rgba(255, 193, 7, 0.2);
    color: var(--color-warning);
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.status-secondary {
    background: rgba(108, 117, 125, 0.2);
    color: var(--color-gray-400);
    border: 1px solid rgba(108, 117, 125, 0.3);
}

/* ========================================
   FORMULARIOS
   ======================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: var(--transition-normal);
    backdrop-filter: blur(5px);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(229, 182, 57, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

/* Checkbox y radio */
.form-group input[type="checkbox"],
.form-group input[type="radio"] {
    width: auto;
    margin-right: var(--spacing-sm);
}

/* ===== CONTENEDOR DE CONTRASEÑA CON OJO ===== */
.password-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-container input {
    padding-right: calc(var(--spacing-lg) + 40px); /* Espacio para el botón */
}

.password-toggle {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    z-index: 2;
}

.password-toggle:hover {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
}

.password-toggle:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    color: var(--color-primary);
}

.password-toggle i {
    font-size: var(--font-size-base);
    pointer-events: none;
}

/* ========================================
   BOTONES
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    text-align: center;
    font-family: inherit;
    white-space: nowrap;
    user-select: none;
    -webkit-user-select: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--color-white);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-card-hover);
    border-color: var(--border-dark);
    transform: translateY(-1px);
}

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

.btn-success:hover:not(:disabled) {
    background: #218838;
    transform: translateY(-2px);
}

.btn-warning {
    background: var(--color-warning);
    color: var(--color-black);
}

.btn-warning:hover:not(:disabled) {
    background: #e0a800;
    transform: translateY(-2px);
}

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

.btn-danger:hover:not(:disabled) {
    background: #c82333;
    transform: translateY(-2px);
}

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

.btn-info:hover:not(:disabled) {
    background: #138496;
    transform: translateY(-2px);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    padding: var(--spacing-sm);
    min-width: auto;
}

/* ========================================
   ALERTS
   ======================================== */

.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.alert-success {
    background: rgba(40, 167, 69, 0.2);
    border: 1px solid rgba(40, 167, 69, 0.3);
    color: var(--color-success-light);
}

.alert-error {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: var(--color-error-light);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.2);
    border: 1px solid rgba(255, 193, 7, 0.3);
    color: var(--color-warning);
}

.alert-info {
    background: rgba(23, 162, 184, 0.2);
    border: 1px solid rgba(23, 162, 184, 0.3);
    color: var(--color-info);
}

/* ========================================
   MODALES
   ======================================== */

.modal {
    position: fixed;
    z-index: var(--z-modal);
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-light);
    position: relative;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.modal-title {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
}

.close {
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    font-size: var(--font-size-2xl);
    line-height: 1;
    transition: var(--transition-fast);
}

.close:hover {
    color: var(--color-white);
}

/* ========================================
   FILTROS Y BUSQUEDA
   ======================================== */

.filters {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-light);
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.search-box {
    position: relative;
}

.search-box input {
    padding-left: calc(var(--spacing-lg) + 20px);
}

.search-box i {
    position: absolute;
    left: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
}

/* ========================================
   TABS (para páginas con pestañas)
   ======================================== */

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.tab-btn {
    background: none;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-gray-400);
    cursor: pointer;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: var(--transition-fast);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--color-primary);
    background: var(--bg-card);
}

.tab-content {
    padding: var(--spacing-lg) 0;
}

.category-tab {
    display: none;
}

.category-tab.active {
    display: block;
}

/* ========================================
   PRODUCT CARDS (para la página de menú)
   ======================================== */

.product-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.product-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-2px);
    background: var(--bg-card-hover);
}

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

/* Tablet landscape */
@media (max-width: 1024px) {
    .sidebar {
        width: 260px;
    }
    
    .main-content {
        margin-left: 260px;
        padding: var(--spacing-lg);
    }
    
    .welcome-branding {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .welcome-branding img {
        height: 60px;
    }
}

/* Tablet portrait */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-overlay.show {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
        padding: calc(var(--spacing-xl) + 50px) var(--spacing-lg) var(--spacing-lg);
    }
    
    .main-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }
    
    .user-menu {
        width: 100%;
        justify-content: space-between;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .filters-grid {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: var(--spacing-lg);
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.125rem;
        --spacing-sm: 0.25rem;
        --spacing-md: 0.75rem;
        --spacing-lg: 1rem;
        --spacing-xl: 1.25rem;
        --spacing-2xl: 1.5rem;
    }
    
    .main-content {
        padding: calc(var(--spacing-xl) + 40px) var(--spacing-md) var(--spacing-md);
    }
    
    .login-card {
        padding: var(--spacing-xl);
    }
    
    .welcome-branding {
        padding: var(--spacing-lg);
    }
    
    .welcome-branding img {
        height: 50px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-sm);
    }
    
    .stat-card {
        padding: var(--spacing-lg);
    }
    
    .card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    
    .modal {
        padding: var(--spacing-md);
    }
    
    .modal-content {
        padding: var(--spacing-lg);
        max-height: 95vh;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
    
    .btn-lg {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
    
    .table-container {
        font-size: var(--font-size-xs);
    }
    
    .product-cards {
        grid-template-columns: 1fr;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        min-height: 44px;
    }
    
    .sidebar-nav a {
        min-height: 44px;
    }
    
    .tab-btn {
        min-height: 44px;
    }
}

/* Print styles */
@media print {
    .sidebar,
    .mobile-menu-toggle,
    .user-menu,
    .btn,
    .alert {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
        padding: 0;
    }
    
    .card {
        break-inside: avoid;
        border: 1px solid #000;
    }
}

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

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

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in-left {
    animation: slideInFromLeft 0.3s ease-out;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.sidebar-nav a:focus,
.tab-btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-light: rgba(255, 255, 255, 0.3);
        --border-medium: rgba(255, 255, 255, 0.5);
        --border-dark: rgba(255, 255, 255, 0.7);
    }
}

/* ===== ESTILOS PARA WIDGET DE NOTIFICACIONES ===== */

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notifications-widget {
    position: relative;
}

.notifications-widget button {
    position: relative;
    background: transparent;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-700);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.notifications-widget button:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--color-error);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    display: none;
}

.notifications-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 350px;
    max-height: 400px;
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

.notifications-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.notifications-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--color-gray-200);
    background: var(--color-gray-50);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.notifications-header h6 {
    margin: 0;
    color: var(--color-gray-700);
    font-weight: 600;
}

.notifications-list {
    max-height: 300px;
    overflow-y: auto;
}

.notification-item {
    display: flex;
    align-items: flex-start;
    padding: 1rem;
    border-bottom: 1px solid var(--color-gray-100);
    transition: background-color var(--transition-fast);
}

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

.notification-item:hover {
    background: var(--color-gray-50);
}

.notification-item.unread {
    background: rgba(59, 130, 246, 0.05);
    border-left: 3px solid var(--color-primary);
}

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

.notification-title {
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.notification-message {
    color: var(--color-gray-600);
    font-size: 0.8rem;
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.notification-time {
    color: var(--color-gray-500);
    font-size: 0.75rem;
}

.notification-actions {
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.notification-actions .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

/* Responsive para el widget de notificaciones */
@media (max-width: 768px) {
    .header-actions {
        gap: 0.5rem;
    }
    
    .notifications-dropdown {
        width: 300px;
        right: -50px;
    }
    
    .notifications-dropdown::before {
        content: '';
        position: absolute;
        top: -8px;
        right: 60px;
        width: 0;
        height: 0;
        border-left: 8px solid transparent;
        border-right: 8px solid transparent;
        border-bottom: 8px solid white;
    }
}

@media (max-width: 480px) {
    .notifications-dropdown {
        width: 280px;
        right: -80px;
    }
    
    .notifications-dropdown::before {
        right: 90px;
    }
    
    .notification-item {
        padding: 0.75rem;
    }
    
    .notification-title {
        font-size: 0.8rem;
    }
    
    .notification-message {
        font-size: 0.75rem;
    }
}