/**
 * Sistema de Gestión de Activos Fijos
 * Estilos principales - Diseño verde responsive v2.0
 * Compatible con dispositivos móviles y desktop
 */

/* ============================================
   VARIABLES CSS
   ============================================ */
:root {
    /* Colores principales - Tonos verdes */
    --color-primary: #2d7a3e;
    --color-primary-dark: #1f5c2e;
    --color-primary-light: #4a9d5c;
    --color-secondary: #52b788;
    --color-accent: #95d5b2;
    
    /* Colores de estado */
    --color-success: #52b788;
    --color-warning: #f4a261;
    --color-danger: #e63946;
    --color-info: #219ebc;
    
    /* Colores neutros */
    --color-dark: #212529;
    --color-gray-dark: #495057;
    --color-gray: #6c757d;
    --color-gray-light: #adb5bd;
    --color-light: #f8f9fa;
    --color-white: #ffffff;
    
    /* Tipografía */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Bordes */
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
    
    /* Transiciones */
    --transition-speed: 0.3s;
    
    /* Header */
    --header-height: 70px;
}

/* ============================================
   RESET Y BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-light);
    padding-top: var(--header-height);
}

/* ============================================
   LAYOUT PRINCIPAL
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -0.5);
}

.col {
    flex: 1;
    padding: 0 calc(var(--spacing-md) * 0.5);
}

.col-6 { flex: 0 0 50%; max-width: 50%; padding: 0 calc(var(--spacing-md) * 0.5); }
.col-4 { flex: 0 0 33.333%; max-width: 33.333%; padding: 0 calc(var(--spacing-md) * 0.5); }
.col-3 { flex: 0 0 25%; max-width: 25%; padding: 0 calc(var(--spacing-md) * 0.5); }
.col-8 { flex: 0 0 66.666%; max-width: 66.666%; padding: 0 calc(var(--spacing-md) * 0.5); }
.col-12 { flex: 0 0 100%; max-width: 100%; padding: 0 calc(var(--spacing-md) * 0.5); }

/* ============================================
   HEADER Y NAVEGACIÓN
   ============================================ */
.header {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

/* ============================================
   LOGO
   ============================================ */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-white);
    text-decoration: none;
    transition: opacity var(--transition-speed);
    white-space: nowrap;
}

.logo:hover {
    opacity: 0.9;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background-color: var(--color-accent);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.logo-img {
    width: 80%;
    height: 80%;
    object-fit: contain;
}

.logo-fallback {
    font-size: 20px;
    font-weight: bold;
    color: var(--color-primary-dark);
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

/* ============================================
   NAVEGACIÓN PRINCIPAL
   ============================================ */
.nav {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    list-style: none;
}

.nav-link {
    color: var(--color-white);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-speed);
    font-weight: 500;
    font-size: var(--font-size-sm);
    display: inline-block;
    white-space: nowrap;
}

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

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.25);
}

/* ============================================
   DROPDOWNS EN NAVEGACIÓN
   ============================================ */
.nav-item-dropdown {
    position: relative;
}

.dropdown-toggle {
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-family: inherit;
    font-size: var(--font-size-sm);
}

.dropdown-toggle .arrow {
    font-size: 0.7em;
    transition: transform var(--transition-speed);
}

.nav-item-dropdown.open .dropdown-toggle .arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--spacing-sm) 0;
    margin-top: var(--spacing-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-speed);
    z-index: 1001;
}

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

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-dark);
    text-decoration: none;
    transition: background-color var(--transition-speed);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

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

/* ============================================
   NAV USER Y LOGOUT
   ============================================ */
.nav-user {
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-user small {
    font-size: 0.85em;
    opacity: 0.8;
}

.nav-logout {
    background-color: rgba(231, 76, 60, 0.2) !important;
}

.nav-logout:hover {
    background-color: rgba(231, 76, 60, 0.4) !important;
}

/* ============================================
   MENÚ MÓVIL - HAMBURGUESA ANIMADA
   ============================================ */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1002;
    position: relative;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-speed) ease;
    transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: var(--header-height);
        right: -100%;
        width: 280px;
        max-width: 85vw;
        height: calc(100vh - var(--header-height));
        background-color: var(--color-white);
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-speed) ease;
        overflow-y: auto;
        gap: 0;
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-link {
        color: var(--color-dark);
        padding: var(--spacing-md);
        border-radius: var(--border-radius-sm);
        border-bottom: 1px solid var(--color-light);
    }
    
    .nav-link:hover {
        background-color: var(--color-light);
    }
    
    .dropdown-toggle {
        color: var(--color-dark);
        padding: var(--spacing-md);
        width: 100%;
        justify-content: space-between;
    }
    
    .dropdown-menu {
        position: static;
        box-shadow: none;
        padding-left: var(--spacing-md);
        margin-top: 0;
        border-left: 3px solid var(--color-primary);
    }
    
    .nav-user {
        background-color: var(--color-light);
        color: var(--color-dark);
        margin-bottom: var(--spacing-sm);
    }
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    min-height: calc(100vh - var(--header-height) - 100px);
    padding: var(--spacing-lg) 0;
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--color-primary);
}

.page-title {
    font-size: var(--font-size-xl);
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    color: var(--color-gray);
    font-size: var(--font-size-base);
}

/* ============================================
   CARDS/TARJETAS
   ============================================ */
.card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    transition: box-shadow var(--transition-speed);
}

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

.card-header {
    background-color: var(--color-primary-light);
    color: var(--color-white);
    padding: var(--spacing-md);
    font-weight: 600;
    border-bottom: 2px solid var(--color-primary);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    background-color: var(--color-light);
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-gray-light);
}

/* ============================================
   FORMULARIOS
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-dark);
}

.form-label.required::after {
    content: " *";
    color: var(--color-danger);
}

.form-control,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: border-color var(--transition-speed);
    background-color: var(--color-white);
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(45, 122, 62, 0.1);
}

.form-control:disabled,
.form-select:disabled {
    background-color: var(--color-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-gray);
}

.input-with-button {
    display: flex;
    gap: var(--spacing-sm);
}

.input-with-button .form-control {
    flex: 1;
}

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed);
    line-height: 1.5;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

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

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
}

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

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

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

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

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: var(--font-size-lg);
}

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

/* ============================================
   TABLAS
   ============================================ */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

.table thead {
    background-color: var(--color-primary);
    color: var(--color-white);
}

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

.table th {
    font-weight: 600;
    white-space: nowrap;
}

.table tbody tr {
    transition: background-color var(--transition-speed);
}

.table tbody tr:hover {
    background-color: rgba(45, 122, 62, 0.05);
}

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

/* Ordenamiento de tablas */
.table th[data-sort] {
    cursor: pointer;
    user-select: none;
}

.table th[data-sort]:hover {
    background-color: var(--color-primary-light);
}

.table th.sort-asc::after {
    content: " ▲";
    font-size: 0.8em;
}

.table th.sort-desc::after {
    content: " ▼";
    font-size: 0.8em;
}

/* ============================================
   BADGES Y ETIQUETAS
   ============================================ */
.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--border-radius-sm);
}

.badge-success { background-color: var(--color-success); color: var(--color-white); }
.badge-warning { background-color: var(--color-warning); color: var(--color-white); }
.badge-danger { background-color: var(--color-danger); color: var(--color-white); }
.badge-info { background-color: var(--color-info); color: var(--color-white); }
.badge-secondary { background-color: var(--color-gray); color: var(--color-white); }
.badge-primary { background-color: var(--color-primary); color: var(--color-white); }

/* ============================================
   ALERTAS
   ============================================ */
.alert {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid;
    transition: opacity var(--transition-speed);
}

.alert-success {
    background-color: #d1f2e4;
    border-color: var(--color-success);
    color: #0f5132;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: var(--color-warning);
    color: #664d03;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: var(--color-danger);
    color: #842029;
}

.alert-info {
    background-color: #cfe2ff;
    border-color: var(--color-info);
    color: #084298;
}

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

.footer p {
    margin: 0;
    font-size: var(--font-size-sm);
}

/* ============================================
   UTILIDADES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

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

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

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

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

.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }

/* ============================================
   ESTILOS PARA FOTOGRAFÍAS (v2.0)
   ============================================ */
.upload-area {
    border: 3px dashed var(--color-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
    background-color: rgba(45, 122, 62, 0.02);
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--color-primary-dark);
    background-color: rgba(45, 122, 62, 0.05);
}

.upload-placeholder {
    padding: var(--spacing-lg);
    color: var(--color-gray);
}

.upload-icon {
    font-size: 3em;
    margin-bottom: var(--spacing-sm);
}

.preview-container {
    margin-top: var(--spacing-lg);
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.preview-item {
    position: relative;
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.preview-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.preview-item-remove {
    position: absolute;
    top: 5px;
    right: 5px;
    background: var(--color-danger);
    color: white;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
}

.fotos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.foto-card {
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: transform var(--transition-speed);
}

.foto-card.principal {
    border-color: var(--color-warning);
    box-shadow: 0 0 10px rgba(244, 162, 97, 0.3);
}

.foto-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.foto-imagen {
    position: relative;
    height: 200px;
    overflow: hidden;
    cursor: pointer;
}

.foto-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.badge-principal {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(244, 162, 97, 0.95);
    color: white;
    padding: 5px 10px;
    border-radius: var(--border-radius-sm);
    font-weight: bold;
    font-size: 12px;
}

.foto-info {
    padding: var(--spacing-md);
}

.foto-descripcion {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
}

.foto-meta {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--color-gray);
    font-size: var(--font-size-sm);
}

.foto-acciones {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: flex-end;
}

.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.9);
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 80vh;
    object-fit: contain;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}

.foto-thumbnail {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--color-gray-light);
}

.foto-count-badge {
    background: var(--color-primary);
    color: white;
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 11px;
    margin-left: 5px;
}

/* ============================================
   RESPONSIVE - TABLETS
   ============================================ */
@media (max-width: 992px) {
    .col-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .fotos-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

/* ============================================
   RESPONSIVE - MÓVILES
   ============================================ */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }
    
    .col-6, .col-4, .col-3, .col-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .table-responsive {
        font-size: var(--font-size-sm);
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .btn:not(.btn-sm) {
        padding: var(--spacing-md);
    }
    
    .page-title {
        font-size: var(--font-size-lg);
    }
    
    .card-body {
        padding: var(--spacing-md);
    }
    
    .fotos-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .foto-imagen {
        height: 150px;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .preview-item img {
        height: 100px;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
        --spacing-md: 0.75rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
    }
    
    .page-header {
        padding-bottom: var(--spacing-sm);
    }
}

/* ============================================
   MEJORAS DE ACCESIBILIDAD
   ============================================ */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-accent);
}

/* ============================================
   ANIMACIONES
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-speed) ease-out;
}

/* ============================================
   SCROLLBAR PERSONALIZADA (WEBKIT)
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-light);
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-light);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray);
}

/* ============================================
   IMPRESIÓN
   ============================================ */
@media print {
    .header,
    .footer,
    .btn,
    .mobile-menu-toggle {
        display: none;
    }
    
    body {
        padding-top: 0;
    }
    
    .main-content {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--color-gray-light);
        page-break-inside: avoid;
    }
}