/* ===============================
   GONZURQ ERP - ESTILOS BASE
   Variables y estilos comunes
   =============================== */

/* DISEÑO ELEGANTE Y PROFESIONAL */
.modern-theme {
    background: #f8f9fa !important;
    min-height: 100vh;
}

.header {
    background: linear-gradient(135deg, #2E7D32 0%, #388E3C 100%) !important;
    box-shadow: 0 2px 10px rgba(46, 125, 50, 0.15) !important;
    backdrop-filter: blur(10px) !important;
}

/* Variables CSS con colores modernos para GONZURQ */
:root {
    /* Paleta de colores principal */
    --primary-green: #2E7D32;
    --secondary-green: #4CAF50;
    --accent-green: #66BB6A;
    --dark-green: #1B5E20;
    --light-green: #C8E6C9;
    
    /* Colores complementarios */
    --gradient-primary: linear-gradient(135deg, #2E7D32 0%, #4CAF50 50%, #66BB6A 100%);
    --gradient-secondary: linear-gradient(135deg, #E8F5E8 0%, #C8E6C9 100%);
    --gradient-dark: linear-gradient(135deg, #1B5E20 0%, #2E7D32 100%);
    
    /* Colores neutros modernos */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Sombras profesionales */
    --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);
}

/* Estilos base profesionales */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-top: 20px;
    margin-bottom: 20px;
}

.main-content {
    padding: 2rem 1rem;
}

/* Estilos para las tarjetas del dashboard */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

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

/* Botones de acciones rápidas */
.quick-actions {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--gradient-primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.action-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: var(--white);
}
:root {
    /* Paleta de colores principal */
    --primary-green: #2E7D32;
    --secondary-green: #4CAF50;
    --accent-green: #66BB6A;
    --dark-green: #1B5E20;
    --light-green: #C8E6C9;
    
    /* Colores complementarios */
    --gradient-primary: linear-gradient(135deg, #2E7D32 0%, #4CAF50 50%, #66BB6A 100%);
    --gradient-secondary: linear-gradient(135deg, #E8F5E8 0%, #C8E6C9 100%);
    --gradient-dark: linear-gradient(135deg, #1B5E20 0%, #2E7D32 100%);
    
    /* Colores neutros modernos */
    --white: #FFFFFF;
    --light-gray: #FAFAFA;
    --gray-50: #F9F9F9;
    --gray-100: #F5F5F5;
    --gray-200: #EEEEEE;
    --gray-300: #E0E0E0;
    --gray-400: #BDBDBD;
    --gray-500: #9E9E9E;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;
    --text-dark: #1A1A1A;
    --text-light: #6B7280;
    
    /* Colores de estado */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Sombras modernas */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 25px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
    --shadow-hover: 0 12px 35px rgba(46, 125, 50, 0.15);
    --shadow-colored: 0 8px 25px rgba(46, 125, 50, 0.2);
    
    /* Bordes y radios */
    --border-radius-sm: 8px;
    --border-radius: 12px;
    --border-radius-md: 16px;
    --border-radius-lg: 20px;
    --border-radius-xl: 24px;
    
    /* Transiciones suaves */
    --transition-fast: all 0.15s ease;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Espaciado consistente */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
    
    /* Tipografía */
    --font-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Tamaños de texto */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    
    /* Z-index scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-tooltip: 1070;
}

/* Reset y estilos base modernos */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    color: var(--text-dark);
    background: linear-gradient(135deg, #FAFAFA 0%, #F5F7FA 100%);
    font-size: var(--text-base);
    font-weight: var(--font-weight-normal);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: var(--transition);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-dark);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Selection colors */
::selection {
    background: var(--light-green);
    color: var(--dark-green);
}

::-moz-selection {
    background: var(--light-green);
    color: var(--dark-green);
}

/* ===============================
   HEADER STYLES (COMÚN PARA TODOS)
   =============================== */
.header {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(46, 125, 50, 0.95) 0%, rgba(76, 175, 80, 0.95) 100%);
    z-index: -1;
}

.header-top {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    position: relative;
    z-index: 2;
}

.logo h1 {
    font-size: var(--text-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.logo-g {
    font-size: var(--text-4xl);
    background: linear-gradient(45deg, #FFFFFF 0%, var(--light-green) 50%, #FFFFFF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    display: inline-block;
    animation: logoGlow 3s ease-in-out infinite alternate;
}

@keyframes logoGlow {
    0% { filter: brightness(1); }
    100% { filter: brightness(1.2) drop-shadow(0 0 8px rgba(255, 255, 255, 0.3)); }
}

.logo p {
    font-size: var(--text-sm);
    opacity: 0.95;
    font-weight: var(--font-weight-light);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    margin-top: 2px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--text-sm);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.user-info i {
    font-size: var(--text-lg);
    opacity: 0.9;
}

.logout-btn {
    color: var(--white);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.15);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Navbar moderno */
.navbar {
    background: rgba(0, 0, 0, 0.1);
    padding: 0;
    position: relative;
    backdrop-filter: blur(10px);
}

.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    font-weight: var(--font-weight-medium);
    font-size: var(--text-sm);
    position: relative;
    border-radius: 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--gradient-secondary);
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px 2px 0 0;
}

.nav-link:hover::before,
.nav-item.active .nav-link::before {
    width: 80%;
}

.nav-link:hover,
.nav-item.active .nav-link {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

.nav-link i {
    font-size: var(--text-base);
    opacity: 0.9;
    transition: var(--transition);
}

.nav-link:hover i {
    transform: scale(1.1);
    opacity: 1;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-15px);
    transition: var(--transition);
    z-index: var(--z-dropdown);
    min-width: 280px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

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

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--gray-100);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    position: relative;
}

.dropdown-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--light-green) 100%);
    color: var(--dark-green);
    padding-left: calc(var(--spacing-xl) + var(--spacing-xs));
}

.dropdown-menu a:hover::before {
    transform: scaleY(1);
}

.dropdown-menu a i {
    color: var(--primary-green);
    font-size: var(--text-base);
    width: 20px;
    text-align: center;
}

.dropdown-menu li:last-child a {
    border-bottom: none;
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

/* ===============================
   MAIN CONTENT (COMÚN)
   =============================== */
.main-content {
    margin-top: 140px;
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 220px);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-green);
}

.page-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-green);
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
}

.page-header i {
    font-size: 1.6rem;
}

/* ===============================
   FORMS & COMPONENTS MODERNOS
   =============================== */
.form-control {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: var(--text-base);
    transition: var(--transition);
    background: var(--white);
    outline: none;
    font-family: inherit;
    font-weight: var(--font-weight-normal);
    color: var(--gray-800);
    width: 100%;
    position: relative;
}

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

.form-control:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 4px rgba(46, 125, 50, 0.1);
    background: var(--white);
    transform: translateY(-2px);
}

.form-control:invalid:not(:placeholder-shown) {
    border-color: var(--error);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.form-control:valid:not(:placeholder-shown) {
    border-color: var(--success);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    color: var(--gray-700);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-group label.required::after {
    content: '*';
    color: var(--error);
    font-weight: bold;
}

.form-group label i {
    color: var(--primary-green);
    font-size: var(--text-sm);
}

/* Select modernos */
.form-control.select {
    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 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-md) center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: var(--spacing-3xl);
    appearance: none;
}

/* Textarea */
.form-control.textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
    line-height: 1.6;
}

/* Input groups */
.input-group {
    display: flex;
    width: 100%;
}

.input-group .form-control {
    border-radius: 0;
}

.input-group .form-control:first-child {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group .form-control:last-child {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.input-group-text {
    background: var(--gray-100);
    border: 2px solid var(--gray-300);
    padding: var(--spacing-md);
    color: var(--gray-600);
    display: flex;
    align-items: center;
    white-space: nowrap;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
}

/* Checkbox y radio modernos */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-check-input {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    background: var(--white);
    cursor: pointer;
    transition: var(--transition);
}

.form-check-input:checked {
    background: var(--gradient-primary);
    border-color: var(--primary-green);
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-label {
    color: var(--gray-700);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
}

/* ===============================
   BUTTON STYLES MODERNOS
   =============================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    background: var(--gradient-primary);
    color: var(--white);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    min-height: 44px;
    border: 2px solid transparent;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    filter: brightness(1.1);
}

.btn:active {
    transform: translateY(-1px);
    transition: var(--transition-fast);
}

.btn:focus {
    outline: none;
    box-shadow: var(--shadow-hover), 0 0 0 3px rgba(46, 125, 50, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
    box-shadow: none;
}

.btn-outline::before {
    background: var(--gradient-primary);
    opacity: 0;
    left: 0;
}

.btn-outline:hover {
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow-colored);
}

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--text-xs);
    min-height: 36px;
    border-radius: var(--border-radius-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-base);
    min-height: 52px;
    border-radius: var(--border-radius-md);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--gray-600), var(--gray-700));
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--gray-700), var(--gray-800));
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #D97706);
}

.btn-danger {
    background: linear-gradient(135deg, var(--error), #DC2626);
}

.btn-info {
    background: linear-gradient(135deg, var(--info), #2563EB);
}

/* ===============================
   MODAL STYLES (COMUNES)
   =============================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-hover);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    min-width: 500px;
}

@keyframes modalSlideIn {
    from {
        transform: translate(-50%, -60%);
        opacity: 0;
        scale: 0.9;
    }
    to {
        transform: translate(-50%, -50%);
        opacity: 1;
        scale: 1;
    }
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--light-gray);
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    color: var(--white);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 0;
}

.modal-body {
    padding: var(--spacing-lg);
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--light-gray);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    background: #fafafa;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

.close {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 50%;
    transition: var(--transition);
}

.close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ===============================
   LOADER & TOAST (COMUNES)
   =============================== */
.loader {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 9999;
    display: none;
}

.loader.show {
    display: block;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--light-green);
    border-top: 4px solid var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    color: var(--white);
    font-weight: 500;
    z-index: 10000;
    opacity: 0;
    transform: translateX(100%);
    transition: var(--transition);
    max-width: 300px;
    box-shadow: var(--shadow-hover);
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast.success {
    background: #4CAF50;
}

.toast.error {
    background: #F44336;
}

.toast.warning {
    background: #FF9800;
}

.toast.info {
    background: var(--primary-green);
}

/* ===============================
   FOOTER (COMÚN)
   =============================== */
.footer {
    background: var(--dark-green);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ===============================
   UTILITY CLASSES (COMUNES)
   =============================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-success { color: #4CAF50; }
.text-warning { color: #FF9800; }
.text-danger { color: #F44336; }
.text-muted { color: var(--gray); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.hidden { display: none; }
.visible { display: block; }

/* ===============================
   RESPONSIVE DESIGN (BASE)
   =============================== */
@media (max-width: 1200px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .main-content {
        margin-top: 120px;
    }
    
    .page-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .modal-content {
        margin: var(--spacing-sm);
        max-width: calc(100vw - var(--spacing-lg));
        min-width: auto;
    }
    
    .nav-menu {
        flex-direction: column;
    }
    
    .nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(255, 255, 255, 0.95);
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--spacing-md) 0;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .logo-g {
        font-size: 2.2rem;
    }
    
    .user-info {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: flex-end;
    }
}