/* ajuste.css - Sistema de diseño responsivo para toda la web */

/* Variables CSS para consistencia */
:root {
    /* Colores principales */
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    
    /* Colores de texto */
    --text-color: #333333;
    --text-light: #666666;
    --text-lighter: #999999;
    --text-on-primary: #ffffff;
    
    /* Colores de fondo */
    --background-color: #ffffff;
    --background-light: #f8f9fa;
    --background-dark: #2c3e50;
    --background-grey: #ecf0f1;
    
    /* Bordes */
    --border-color: #dddddd;
    --border-light: #eeeeee;
    --border-dark: #34495e;
    
    /* Espaciados */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Bordes redondeados */
    --border-radius: 4px;
    --border-radius-sm: 2px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
    
    /* Sombras */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Fuentes */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    
    /* Breakpoints */
    --breakpoint-mobile: 768px;
    --breakpoint-tablet: 1024px;
    --breakpoint-desktop: 1200px;
}

/* Reset global mejorado */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
}

/* Contenedores responsivos */
.container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* Sistema de grid responsivo */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: 1fr;
}

.grid-3 {
    grid-template-columns: 1fr;
}

.grid-4 {
    grid-template-columns: 1fr;
}

/* Flexbox utilitario */
.flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.flex-row {
    flex-direction: row;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-nowrap {
    flex-wrap: nowrap;
}

.justify-start {
    justify-content: flex-start;
}

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

.justify-end {
    justify-content: flex-end;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.align-start {
    align-items: flex-start;
}

.align-center {
    align-items: center;
}

.align-end {
    align-items: flex-end;
}

.align-stretch {
    align-items: stretch;
}

/* Espaciados utilitarios */
.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-xs); }
.m-2 { margin: var(--spacing-sm); }
.m-3 { margin: var(--spacing-md); }
.m-4 { margin: var(--spacing-lg); }
.m-5 { margin: var(--spacing-xl); }

/* Texto responsivo */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-xxl { font-size: var(--font-size-xxl); }

/* NAVBAR RESPONSIVO */
.navbar {
    background: var(--primary-color);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.nav-container {
    width: 100%;
    max-width: var(--breakpoint-desktop);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Menú móvil - por defecto */
.nav-menu {
    display: flex;
    flex-direction: column;
    list-style: none;
    gap: var(--spacing-sm);
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--primary-color);
    padding: 80px var(--spacing-md) var(--spacing-md) var(--spacing-md);
    box-shadow: var(--shadow-lg);
    transition: left 0.3s ease;
    overflow-y: auto;
    z-index: 1000;
}

.nav-menu.show,
.nav-menu.active {
    left: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-on-primary);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    display: block;
    transition: var(--transition-fast);
    border-radius: var(--border-radius);
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Botón menú móvil */
.mobile-menu-toggle {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    color: var(--text-on-primary);
    cursor: pointer;
    padding: 6px 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.mobile-menu-icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 22px;
    height: 16px;
}

.hamburger-line {
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background: var(--text-on-primary);
}

.mobile-menu-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Dropdowns móviles */
.dropdown-menu, .submenu {
    background: var(--background-dark);
    border-radius: var(--border-radius);
    margin: var(--spacing-xs) 0;
    display: none;
}

.dropdown-menu.show,
.dropdown-menu.active,
.submenu.show,
.submenu.active {
    display: block;
}

.dropdown-link, .submenu-link {
    color: var(--text-on-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    display: block;
    text-decoration: none;
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
    cursor: pointer;
    pointer-events: auto;
    position: relative;
}

.dropdown-link:hover, .submenu-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: var(--secondary-color);
}

/* Auth items móviles */
.auth-item {
    margin-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
}

.auth-button {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--secondary-color);
    color: var(--text-on-primary);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
}

.auth-button:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

/* User menu móvil */
.user-menu {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
}

.user-welcome {
    color: var(--text-on-primary);
    font-weight: 600;
    display: block;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.user-dropdown {
    display: none;
}

.user-dropdown.show {
    display: block;
}

.user-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-on-primary);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
    margin-bottom: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.05);
}

.user-link:hover {
    background: var(--secondary-color);
    color: var(--text-on-primary);
}

/* CONTENIDO PRINCIPAL RESPONSIVO */
.main-content {
    min-height: calc(100vh - 200px);
    padding: var(--spacing-lg) 0;
}

/* Cards responsivas */
.card {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

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

.card-header {
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

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

/* Formularios responsivos */
.form-group {
    margin-bottom: var(--spacing-md);
}

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

.form-control {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    transition: var(--transition-fast);
    background: var(--background-color);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Botones responsivos */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    line-height: 1.5;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--text-on-primary);
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--background-light);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-light);
}

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

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

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--background-color);
}

th, td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

th {
    background: var(--background-light);
    font-weight: 600;
    color: var(--primary-color);
}

/* Modales responsivos */
.auth-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    z-index: 2000;
    padding: var(--spacing-md);
    backdrop-filter: blur(5px);
}

.auth-modal-content {
    background: var(--background-color);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
    top: 50%;
    transform: translateY(-50%);
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.auth-modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--background-light);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.auth-modal-header h2 {
    margin: 0;
    color: var(--primary-color);
    font-size: var(--font-size-xl);
}

.close-modal {
    font-size: var(--font-size-xxl);
    cursor: pointer;
    color: var(--text-light);
    line-height: 1;
}

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

.auth-form {
    padding: var(--spacing-lg);
}

.auth-submit-button {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--secondary-color);
    color: var(--text-on-primary);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-md);
    font-weight: 500;
    transition: var(--transition-fast);
    margin-top: var(--spacing-md);
}

.auth-submit-button:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

.auth-modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: center;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* Footer responsivo */
.footer {
    background: var(--primary-color);
    color: var(--text-on-primary);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xxl);
}

.footer-content {
    max-width: var(--breakpoint-desktop);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Utilidades de visibilidad */
.mobile-only {
    display: block;
}

.tablet-up {
    display: none;
}

.desktop-only {
    display: none;
}

/* TABLET (768px en adelante) */
@media (min-width: 768px) {
    .container {
        max-width: var(--breakpoint-tablet);
        padding: 0 var(--spacing-lg);
    }
    
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Navbar tablet */
    .mobile-menu-toggle {
        display: none;
    }
    
    .nav-menu {
        display: flex;
        flex-direction: row;
        position: static;
        background: none;
        padding: 0;
        box-shadow: none;
        gap: var(--spacing-md);
        left: auto;
        width: auto;
        max-width: none;
        height: auto;
        overflow-y: visible;
        transition: none;
    }
    
    .nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    /* Dropdowns tablet */
    .dropdown-menu, .submenu {
        position: absolute;
        min-width: 200px;
        background: var(--background-color);
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--border-color);
        z-index: 100;
    }
    
    .dropdown-link, .submenu-link {
        color: var(--text-color);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .dropdown-link:hover, .submenu-link:hover {
        background: var(--secondary-color);
        color: var(--text-on-primary);
    }
    
    /* Auth items tablet */
    .auth-item {
        margin-top: 0;
        border-top: none;
        padding-top: 0;
        margin-left: auto;
    }
    
    .auth-button {
        width: auto;
    }
    
    /* User menu tablet */
    .user-menu {
        position: relative;
        background: none;
        padding: 0;
    }
    
    .user-welcome {
        text-align: left;
        margin-bottom: 0;
        cursor: pointer;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .user-dropdown {
        position: absolute;
        top: 100%;
        right: 0;
        min-width: 200px;
        background: var(--background-color);
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        z-index: 100;
    }
    
    .user-link {
        background: var(--background-color);
        color: var(--text-color);
        margin-bottom: 0;
    }
    
    .user-link:hover {
        background: var(--secondary-color);
        color: var(--text-on-primary);
    }
    
    /* Utilidades tablet */
    .mobile-only {
        display: none;
    }
    
    .tablet-up {
        display: block;
    }
}

/* DESKTOP (1024px en adelante) */
@media (min-width: 1024px) {
    .container {
        max-width: var(--breakpoint-desktop);
        padding: 0 var(--spacing-xl);
    }
    
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
    
    body {
        font-size: var(--font-size-md);
    }
    
    .nav-menu {
        gap: var(--spacing-lg);
    }
    
    /* Utilidades desktop */
    .desktop-only {
        display: block;
    }
}

/* ESCRITORIO GRANDE (1200px en adelante) */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Modo alto contraste */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
    }
    
    .card {
        border: 2px solid var(--border-color);
    }
}

/* Orientación landscape en móviles */
@media (max-height: 500px) and (orientation: landscape) {
    .auth-modal-content {
        max-height: 80vh;
        top: 10%;
        transform: none;
    }
    
    .main-content {
        min-height: auto;
        padding: var(--spacing-md) 0;
    }
}

/* Impresión */
@media print {
    .navbar,
    .footer,
    .auth-modal,
    .mobile-menu-toggle {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
        font-size: 12pt !important;
    }
    
    .container {
        max-width: none !important;
        padding: 0 !important;
    }
}

/* ===================================
   ESTILOS RESPONSIVE UNIVERSALES
   =================================== */

/* Imágenes responsive */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.img-thumbnail {
    max-width: 100%;
    padding: 4px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--background-color);
}

/* Videos e iframes responsive */
.video-container,
.embed-responsive {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* Ratio 16:9 */
    height: 0;
    overflow: hidden;
}

.video-container iframe,
.video-container video,
.video-container embed,
.video-container object,
.embed-responsive iframe,
.embed-responsive video,
.embed-responsive embed,
.embed-responsive object {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Ratio 4:3 */
.embed-responsive-4by3 {
    padding-bottom: 75%;
}

/* Ratio 1:1 */
.embed-responsive-1by1 {
    padding-bottom: 100%;
}

/* Código y pre responsive */
pre {
    max-width: 100%;
    overflow-x: auto;
    padding: var(--spacing-md);
    background: var(--background-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

code {
    padding: 0.2em 0.4em;
    border-radius: var(--border-radius-sm);
    font-size: 0.9em;
    font-family: 'Courier New', monospace;
}

pre code {
    padding: 0;
    background: none;
}

/* Blockquotes responsive */
blockquote {
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid var(--secondary-color);
    background: var(--background-light);
    border-radius: var(--border-radius);
    font-style: italic;
    color: var(--text-light);
}

blockquote p {
    margin: 0;
}

/* Listas responsive */
ul, ol {
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

ul ul, ol ol, ul ol, ol ul {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    ul, ol {
        padding-left: var(--spacing-lg);
    }
}

/* Separadores responsive */
hr {
    border: 0;
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xl) 0;
}

/* Alertas/Notificaciones responsive */
.alert {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--border-radius);
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffeeba;
    color: #856404;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

/* Badges responsive */
.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 0.85em;
    font-weight: 600;
    line-height: 1;
    color: var(--text-on-primary);
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--border-radius);
    background-color: var(--secondary-color);
}

/* Navegación de breadcrumb responsive */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    list-style: none;
    background-color: var(--background-light);
    border-radius: var(--border-radius);
}

.breadcrumb-item {
    display: flex;
    font-size: var(--font-size-sm);
}

.breadcrumb-item + .breadcrumb-item::before {
    display: inline-block;
    padding: 0 var(--spacing-sm);
    color: var(--text-lighter);
    content: "/";
}

.breadcrumb-item a {
    color: var(--secondary-color);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--text-light);
}

@media (max-width: 480px) {
    .breadcrumb {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .breadcrumb-item + .breadcrumb-item::before {
        padding: 0 var(--spacing-xs);
    }
}

/* Tooltips responsive (básico) */
[data-tooltip] {
    position: relative;
    cursor: help;
}

/* Spinner/Loader responsive */
.spinner {
    border: 3px solid var(--border-light);
    border-top: 3px solid var(--secondary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: var(--spacing-lg) auto;
}

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

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* Progress bars responsive */
.progress {
    display: flex;
    height: 1rem;
    overflow: hidden;
    background-color: var(--background-light);
    border-radius: var(--border-radius);
}

.progress-bar {
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--text-on-primary);
    text-align: center;
    white-space: nowrap;
    background-color: var(--secondary-color);
    transition: width 0.6s ease;
}

/* Utilidades de texto responsive */
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-wrap {
    white-space: normal;
}

.text-nowrap {
    white-space: nowrap;
}

.text-break {
    word-wrap: break-word;
    word-break: break-word;
}

/* Sombras responsive */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

/* Bordes responsive */
.border { border: 1px solid var(--border-color) !important; }
.border-top { border-top: 1px solid var(--border-color) !important; }
.border-bottom { border-bottom: 1px solid var(--border-color) !important; }
.border-left { border-left: 1px solid var(--border-color) !important; }
.border-right { border-right: 1px solid var(--border-color) !important; }
.border-0 { border: 0 !important; }

.rounded { border-radius: var(--border-radius) !important; }
.rounded-sm { border-radius: var(--border-radius-sm) !important; }
.rounded-lg { border-radius: var(--border-radius-lg) !important; }
.rounded-circle { border-radius: 50% !important; }
.rounded-0 { border-radius: 0 !important; }

/* Display utilities responsive */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* Width & Height utilities */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.mw-100 { max-width: 100% !important; }
.mh-100 { max-height: 100% !important; }

/* Overflow utilities */
.overflow-auto { overflow: auto !important; }
.overflow-hidden { overflow: hidden !important; }
.overflow-visible { overflow: visible !important; }
.overflow-scroll { overflow: scroll !important; }

/* Position utilities */
.position-static { position: static !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* Media queries adicionales para ajustes finos */
@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }
    h5 { font-size: 1rem; }
    h6 { font-size: 0.9rem; }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .form-control {
        font-size: var(--font-size-sm);
    }
    
    .alert {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .progress {
        height: 0.75rem;
    }
}

/* Smooth scroll para navegación interna */
html {
    scroll-padding-top: 80px; /* Ajustar según altura del navbar */
}

/* Mejora de rendimiento en móviles */
@media (max-width: 768px) {
    * {
        -webkit-tap-highlight-color: transparent;
    }
    
    a, button {
        touch-action: manipulation;
    }
}

/* Accesibilidad - Focus visible */
:focus-visible {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible),
input:focus:not(:focus-visible) {
    outline: none;
}

/* Skip to content link para accesibilidad */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--secondary-color);
    color: var(--text-on-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    border-radius: 0 0 var(--border-radius) 0;
    z-index: 9999;
}

.skip-to-content:focus {
    top: 0;
}

/* Forzar color azul marino sólido en el menú móvil */
@media (max-width: 768px) {
    .navbar {
        background: #2c3e50 !important;
    }

    .nav-menu,
    .nav-menu.show,
    .nav-menu.active {
        background: #2c3e50 !important;
    }

    .mobile-guest-access {
        background: #2c3e50 !important;
    }
}