/* ============================================================================
   COMYVO - Header Styles
   Archivo: css/header.css
   Descripción: Estilos del header dinámico multinivel responsive
   ============================================================================ */

/* ============================================================================
   VARIABLES CSS (solo las exclusivas del Header, no sobreescribir default.css)
   ============================================================================ */
:root {
    /* Alturas del Header */
    --header-height: 80px;
    --header-height-mobile: 70px;
    
    /* Colores del Dropdown (propios del header) */
    --dropdown-bg: #ffffff;
    --dropdown-border: #e5e7eb;
    --dropdown-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    --dropdown-item-hover: #f3f4f6;
    --dropdown-title-color: #111827;
    --dropdown-desc-color: #6b7280;
    
    /* Colores del Menú */
    --nav-link-color: #ffffff;
    --nav-link-hover: #d4f0f0;
    --nav-link-active: #d4f0f0;
    
    /* Colores Idiomas */
    --lang-bg: transparent;
    --lang-bg-hover: #f3f4f6;
    --lang-active-bg: #e0f2f1;
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.35s ease;
    
    /* Z-index */
    --z-header: 1000;
    --z-dropdown: 1001;
    --z-mobile-menu: 1002;
    --z-overlay: 999;
}

/* ============================================================================
   HEADER BASE
   ============================================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background-color: var(--header-bg);
    transition: all var(--transition-normal);
}

.header.header-sticky {
    position: fixed;
}

.header.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ============================================================================
   NAVEGACIÓN
   ============================================================================ */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

/* ============================================================================
   LOGO
   ============================================================================ */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    transition: opacity var(--transition-fast);
}

.logo:hover .logo-img {
    opacity: 0.85;
}

/* ============================================================================
   MENÚ PRINCIPAL
   ============================================================================ */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

/* ============================================================================
   ENLACES DEL MENÚ
   ============================================================================ */
.nav-link,
.dropdown-trigger,
.lang-trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--nav-link-color);
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    background: transparent;
    font-family: inherit;
    white-space: nowrap;
}

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

.nav-link i:not(.dropdown-arrow),
.dropdown-trigger i:not(.dropdown-arrow) {
    font-size: 1rem;
}

/* Flecha del dropdown */
.dropdown-arrow {
    font-size: 0.625rem;
    margin-left: 0.25rem;
    transition: transform var(--transition-fast);
}

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

/* ============================================================================
   DROPDOWNS
   ============================================================================ */
.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 220px;
    background: var(--dropdown-bg);
    border: 1px solid var(--dropdown-border);
    border-radius: 12px;
    box-shadow: var(--dropdown-shadow);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
    padding: 0.5rem;
}

/* Dropdown alineado a la izquierda (para evitar overflow) */
.dropdown.dropdown-left {
    left: 0;
    transform: translateX(0) translateY(10px);
}

/* Dropdown alineado a la derecha */
.dropdown.dropdown-right {
    left: auto;
    right: 0;
    transform: translateX(0) translateY(10px);
}

/* Mostrar dropdown */
.nav-item.has-dropdown:hover > .dropdown,
.nav-item.has-dropdown.open > .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-item.has-dropdown:hover > .dropdown.dropdown-left,
.nav-item.has-dropdown.open > .dropdown.dropdown-left {
    transform: translateX(0) translateY(0);
}

.nav-item.has-dropdown:hover > .dropdown.dropdown-right,
.nav-item.has-dropdown.open > .dropdown.dropdown-right {
    transform: translateX(0) translateY(0);
}

/* Flecha superior del dropdown */
.dropdown::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: var(--dropdown-bg);
    border-left: 1px solid var(--dropdown-border);
    border-top: 1px solid var(--dropdown-border);
}

.dropdown.dropdown-left::before {
    left: 24px;
    transform: rotate(45deg);
}

.dropdown.dropdown-right::before {
    left: auto;
    right: 24px;
    transform: rotate(45deg);
}

/* ============================================================================
   MEGA MENÚ (Funcionalidades)
   ============================================================================ */
.dropdown-mega {
    min-width: 680px;
    padding: 0.75rem;
}

.dropdown-mega .dropdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.375rem;
}

.dropdown-grid .dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    border-radius: 10px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.dropdown-grid .dropdown-item:hover {
    background-color: var(--dropdown-item-hover);
    transform: translateY(-1px);
}

.dropdown-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, rgba(74, 124, 126, 0.12), rgba(74, 124, 126, 0.04));
    border-radius: 9px;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.dropdown-grid .dropdown-item:hover .dropdown-icon {
    background: linear-gradient(135deg, rgba(74, 124, 126, 0.22), rgba(74, 124, 126, 0.10));
}

.dropdown-icon i {
    font-size: 1rem;
    color: var(--nav-link-hover);
}

.dropdown-content {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    min-width: 0;
    overflow: hidden;
}

.dropdown-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--dropdown-title-color);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dropdown-desc {
    font-size: 0.7rem;
    color: var(--dropdown-desc-color);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================================================
   SUB-MENÚ LATERAL (Hover en Funcionalidades)
   ============================================================================ */

/* Item que tiene sub-menú */
.dropdown-item.has-submenu {
    position: relative;
    cursor: pointer;
    padding-right: 0.25rem;
}

    /* Puente invisible en el item para conectar con el submenu */
    .dropdown-item.has-submenu::after {
        content: '';
        position: absolute;
        top: 0;
        right: -20px;
        width: 24px;
        height: 100%;
        background: transparent;
    }

.dropdown-item-main {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    border-radius: 10px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.dropdown-item.has-submenu:hover > .dropdown-item-main {
    background-color: var(--dropdown-item-hover);
    transform: translateY(-1px);
}

/* Flecha derecha del submenu */
.submenu-arrow {
    font-size: 0.6rem;
    color: var(--dropdown-desc-color);
    margin-left: auto;
    transition: all var(--transition-fast);
}

.dropdown-item.has-submenu:hover .submenu-arrow {
    color: var(--primary, #4F95A3);
    transform: translateX(2px);
}

/* Panel del sub-menú */
.dropdown-submenu {
    position: absolute;
    top: -0.75rem;
    left: calc(100% - 4px);
    min-width: 280px;
    background: var(--dropdown-bg);
    border: 1px solid var(--dropdown-border);
    border-radius: 12px;
    box-shadow: var(--dropdown-shadow);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    transition-delay: 0.2s;
    z-index: 1002;
    pointer-events: none;
}

/* Mostrar sub-menú en hover - sin delay al aparecer */
.dropdown-item.has-submenu:hover > .dropdown-submenu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0.05s;
}

/* Puente invisible grande para evitar que el menú se cierre */
.dropdown-submenu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -28px;
    width: 36px;
    height: calc(100% + 20px);
    background: transparent;
}

/* Cabecera del sub-menú */
.submenu-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem 0.625rem;
    margin-bottom: 0.25rem;
    border-bottom: 1px solid var(--dropdown-border);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-dark, #3F7F8C);
}

    .submenu-header i {
        font-size: 0.875rem;
    }

/* Items del sub-menú */
.submenu-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all var(--transition-fast);
    color: inherit;
}

    .submenu-item:hover {
        background-color: var(--dropdown-item-hover);
        transform: translateX(3px);
    }

    .submenu-item i {
        font-size: 0.875rem;
        color: var(--primary, #4F95A3);
        width: 28px;
        height: 28px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, rgba(74, 124, 126, 0.12), rgba(74, 124, 126, 0.04));
        border-radius: 7px;
        flex-shrink: 0;
        transition: all var(--transition-fast);
    }

    .submenu-item:hover i {
        background: linear-gradient(135deg, rgba(74, 124, 126, 0.22), rgba(74, 124, 126, 0.10));
    }

.submenu-item-content {
    display: flex;
    flex-direction: column;
    gap: 0.0625rem;
    min-width: 0;
}

.submenu-item-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--dropdown-title-color);
    line-height: 1.3;
}

.submenu-item-desc {
    font-size: 0.6875rem;
    color: var(--dropdown-desc-color);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================================================
   SUB-MENÚ: Si se sale por la derecha, abrir a la izquierda
   ============================================================================ */
.dropdown-submenu.submenu-left {
    left: auto;
    right: 100%;
    transform: translateX(-10px);
}

.dropdown-item.has-submenu:hover > .dropdown-submenu.submenu-left {
    transform: translateX(-4px);
}

.dropdown-submenu.submenu-left::before {
    left: auto;
    right: -12px;
}

/* ============================================================================
   SUB-MENÚ RESPONSIVE - TABLET (max-width: 1024px)
   ============================================================================ */
@media (max-width: 1024px) {
    .dropdown-submenu {
        min-width: 240px;
    }
}

/* ============================================================================
   SUB-MENÚ RESPONSIVE - MOBILE (max-width: 768px)
   ============================================================================ */
@media (max-width: 768px) {
    /* En móvil, el sub-menú se muestra como acordeón dentro del dropdown */
    .dropdown-item.has-submenu {
        position: static;
    }

    .dropdown-item-main {
        padding: 0.75rem;
    }

    .dropdown-submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        border: none;
        border-radius: 0;
        box-shadow: none;
        padding: 0;
        min-width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-normal);
        pointer-events: auto;
        margin-left: 0.5rem;
        border-left: 2px solid var(--primary, #4F95A3);
    }

        .dropdown-submenu::before {
            display: none;
        }

    /* En móvil, se abre con clase .open (manejada por JS) */
    .dropdown-item.has-submenu.open > .dropdown-submenu {
        max-height: 800px;
        padding: 0.25rem 0;
    }

    /* Ocultar el hover en móvil */
    .dropdown-item.has-submenu:hover > .dropdown-submenu {
        max-height: 0;
        padding: 0;
    }

    .dropdown-item.has-submenu.open > .dropdown-submenu {
        max-height: 800px;
        padding: 0.25rem 0;
    }

    .submenu-arrow {
        transition: transform var(--transition-fast);
    }

    .dropdown-item.has-submenu.open .submenu-arrow {
        transform: rotate(90deg);
    }

    .submenu-item {
        padding: 0.625rem 0.75rem;
    }

    .submenu-item-desc {
        white-space: normal;
    }

    .submenu-header {
        padding: 0.375rem 0.75rem 0.5rem;
        font-size: 0.75rem;
    }
}

/* ============================================================================
   SUB-MENÚ RESPONSIVE - MÓVIL PEQUEÑO (max-width: 480px)
   ============================================================================ */
@media (max-width: 480px) {
    .submenu-item i {
        width: 24px;
        height: 24px;
        font-size: 0.75rem;
    }

    .submenu-item-title {
        font-size: 0.75rem;
    }

    .submenu-item-desc {
        font-size: 0.625rem;
    }
}

/* ============================================================================
   SUB-MENÚ: Accesibilidad
   ============================================================================ */
.submenu-item:focus-visible {
    outline: 2px solid var(--primary, #4F95A3);
    outline-offset: 2px;
}

.dropdown-item-main:focus-visible {
    outline: 2px solid var(--primary, #4F95A3);
    outline-offset: 2px;
    border-radius: 10px;
}

/* ============================================================================
   DROPDOWN LISTA (Simple, sin descripciones)
   ============================================================================ */
.dropdown-list {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.dropdown-item-simple {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    color: var(--nav-link-color);
    text-decoration: none;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.dropdown-item-simple:hover {
    background-color: var(--dropdown-item-hover);
    color: var(--nav-link-hover);
}

.dropdown-item-simple i {
    width: 1.25rem;
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.7;
}

/* ============================================================================
   SUBMENÚ (Multinivel)
   ============================================================================ */
.dropdown-submenu {
    position: absolute;
    top: -0.75rem;
    left: calc(100% - 8px);
    min-width: 280px;
    background: var(--dropdown-bg);
    border: 1px solid var(--dropdown-border);
    border-radius: 12px;
    box-shadow: var(--dropdown-shadow);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateX(0);
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 1002;
    pointer-events: none;
}

.dropdown-submenu::before {
    display: none;
}

.nav-item.has-dropdown .dropdown-submenu {
    opacity: 0;
    visibility: hidden;
}

.dropdown-list .nav-item.has-dropdown:hover > .dropdown-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* ============================================================================
   SELECTOR DE IDIOMAS
   ============================================================================ */
.lang-item {
    margin-left: 0.5rem;
}

.lang-trigger {
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    gap: 0.375rem;
}

.lang-flag {
    width: 22px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
}

.dropdown-lang {
    min-width: 160px;
    max-width: 180px;
    right: 0;
    left: auto;
    transform: translateX(0) translateY(10px);
    padding: 0.375rem;
}

.dropdown-lang::before {
    left: auto;
    right: 20px;
}

.nav-item.lang-item:hover > .dropdown-lang {
    transform: translateX(0) translateY(0);
}

.dropdown-item-lang {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--dropdown-title-color);
    text-decoration: none;
    border-radius: 6px;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.dropdown-item-lang.active {
    background-color: var(--lang-active-bg);
    color: #4a7c7e;
    font-weight: 600;
}

.dropdown-lang .dropdown-item-lang img,
.dropdown-item-lang img {
    width: 20px !important;
    height: 14px !important;
    max-width: 20px !important;
    max-height: 14px !important;
    object-fit: cover;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
    display: inline-block;
}

.dropdown-item-lang span {
    line-height: 1;
}

.lang-flag-small {
    width: 20px !important;
    height: 14px !important;
    max-width: 20px !important;
    max-height: 14px !important;
    object-fit: cover;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
}

/* ============================================================================
   SEPARADOR
   ============================================================================ */
.nav-separator {
    width: 1px;
    height: 24px;
    background-color: var(--header-border);
    margin: 0 0.5rem;
}

/* ============================================================================
   CLASES DE VISIBILIDAD
   ============================================================================ */
.desktop-only {
    display: flex;
}

.mobile-only {
    display: none;
}

/* ============================================================================
   BOTÓN HAMBURGUESA (MOBILE)
   ============================================================================ */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: var(--z-mobile-menu);
    border-radius: 8px;
    transition: background-color var(--transition-fast);
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* Estado activo hamburguesa (X) */
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================================
   OVERLAY MÓVIL
   ============================================================================ */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-overlay);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================================================
   RESPONSIVE - TABLET (max-width: 1024px)
   ============================================================================ */
@media (max-width: 1024px) {
    .dropdown-mega {
        min-width: 460px;
    }

    .dropdown-mega .dropdown-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================================================
   RESPONSIVE - MOBILE (max-width: 768px)
   ============================================================================ */
@media (max-width: 768px) {
    :root {
        --header-height: var(--header-height-mobile);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .desktop-only {
        display: none !important;
    }
    
    .mobile-only {
        display: flex !important;
    }
    
    /* Menú móvil */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        height: 100dvh;
        background: var(--header-bg);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: calc(var(--header-height) + 1rem) 1rem 2rem;
        overflow-y: auto;
        z-index: var(--z-mobile-menu);
        transition: right var(--transition-slow);
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-item {
        width: 100%;
        border-bottom: 1px solid var(--header-border);
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    .nav-link,
    .dropdown-trigger,
    .lang-trigger {
        width: 100%;
        padding: 1rem;
        justify-content: space-between;
        border-radius: 0;
    }
    
    /* Dropdowns móvil (acordeón) */
    .dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        max-height: 0;
        overflow: hidden;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0;
        background: #f9fafb;
        transition: max-height var(--transition-normal);
    }
    
    .dropdown::before {
        display: none;
    }
    
    .nav-item.has-dropdown.open > .dropdown {
        max-height: 1000px;
        padding: 0.5rem 0;
    }
    
    .dropdown-grid {
        grid-template-columns: 1fr;
        min-width: 100%;
        padding: 0 0.5rem;
    }

    .dropdown-mega {
        min-width: 100%;
        padding: 0;
    }
    
    .dropdown-grid .dropdown-item {
        padding: 0.75rem;
    }

    .dropdown-title {
        white-space: normal;
    }

    .dropdown-desc {
        white-space: normal;
    }
    
    .dropdown-list {
        padding: 0 0.5rem;
    }
    
    .dropdown-item-simple {
        padding: 0.75rem;
    }
    
    /* Idiomas móvil */
    .lang-item {
        margin-left: 0;
        margin-top: auto;
        padding-top: 1rem;
        border-top: 1px solid var(--header-border);
        border-bottom: none !important;
    }
    
    .dropdown-lang {
        position: static;
        min-width: 100%;
        box-shadow: none;
        border: none;
        padding: 0;
    }
    
    /* Submenús móvil */
    .dropdown-submenu {
        position: static;
        margin-left: 0;
        padding-left: 1rem;
        border-left: 2px solid var(--nav-link-hover);
        margin-top: 0.5rem;
    }
    
    /* Animación flecha */
    .nav-item.has-dropdown .dropdown-arrow {
        transition: transform var(--transition-fast);
    }
    
    .nav-item.has-dropdown.open > .nav-link .dropdown-arrow,
    .nav-item.has-dropdown.open > .dropdown-trigger .dropdown-arrow,
    .nav-item.has-dropdown.open > .lang-trigger .dropdown-arrow {
        transform: rotate(180deg);
    }
    
    /* Ocultar hover en móvil, usar click */
    .nav-item.has-dropdown:hover > .dropdown {
        max-height: 0;
    }
    
    .nav-item.has-dropdown.open > .dropdown {
        max-height: 1000px;
    }
}

/* ============================================================================
   RESPONSIVE - MÓVIL PEQUEÑO (max-width: 480px)
   ============================================================================ */
@media (max-width: 480px) {
    .header .container {
        padding: 0 1rem;
    }
    
    .logo-img {
        height: 35px;
        max-width: 140px;
    }
    
    .nav-menu {
        width: 100%;
        max-width: 100%;
        right: -100%;
    }
    
    .dropdown-icon {
        width: 32px;
        height: 32px;
    }
    
    .dropdown-icon i {
        font-size: 0.875rem;
    }
    
    .dropdown-title {
        font-size: 0.8125rem;
    }
    
    .dropdown-desc {
        font-size: 0.6875rem;
    }
}

/* ============================================================================
   UTILIDADES DE ACCESIBILIDAD
   ============================================================================ */
.nav-link:focus-visible,
.dropdown-trigger:focus-visible,
.lang-trigger:focus-visible,
.dropdown-item:focus-visible,
.dropdown-item-simple:focus-visible,
.dropdown-item-lang:focus-visible,
.nav-toggle:focus-visible {
    outline: 2px solid var(--nav-link-hover);
    outline-offset: 2px;
}

/* Skip to content (opcional) */
.skip-to-content {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--nav-link-hover);
    color: white;
    padding: 0.75rem 1.5rem;
    z-index: 9999;
    transition: top var(--transition-fast);
}

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

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

.header {
    animation: fadeInDown 0.5s ease;
}

/* Reducir movimiento para usuarios que lo prefieran */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================================================
   PRINT
   ============================================================================ */
@media print {
    .header {
        position: relative;
        box-shadow: none;
        border-bottom: 1px solid #ccc;
    }
    
    .nav-toggle,
    .dropdown,
    .dropdown-arrow,
    .lang-item {
        display: none !important;
    }
}