/**
 * Estilos del sistema i18n
 * Incluye selector de idioma y utilidades
 */

/* ==========================================
   Language Selector
   ========================================== */

.language-selector {
    position: relative;
    display: inline-block;
    z-index: 1000;
}

/* Botón principal */
.language-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--text-color, #374151);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.language-btn:hover {
    background: var(--hover-bg, #f9fafb);
    border-color: var(--primary-color, #6366f1);
}

.language-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--focus-ring, rgba(99, 102, 241, 0.3));
    border-color: var(--primary-color, #6366f1);
}

.language-btn:focus-visible {
    outline: 2px solid var(--primary-color, #6366f1);
    outline-offset: 2px;
}

/* Flag emoji */
.language-flag {
    font-size: 1.125rem;
    line-height: 1;
}

/* Código de idioma */
.language-code {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Flecha del dropdown */
.language-arrow {
    transition: transform 0.2s ease;
    margin-left: 0.125rem;
}

.language-selector.open .language-arrow {
    transform: rotate(180deg);
}

/* ==========================================
   Dropdown Menu
   ========================================== */

.language-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 160px;
    background: var(--dropdown-bg, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 0.5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1),
                0 4px 6px rgba(0, 0, 0, 0.05);
    list-style: none;
    padding: 0.375rem 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem) scale(0.95);
    transform-origin: top right;
    transition: all 0.2s ease;
}

.language-selector.open .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Opción de idioma */
.language-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.625rem 1rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--text-color, #374151);
    text-align: left;
    transition: background 0.15s ease;
}

.language-option:hover {
    background: var(--hover-bg, #f3f4f6);
}

.language-option:focus {
    outline: none;
    background: var(--hover-bg, #f3f4f6);
}

.language-option:focus-visible {
    outline: 2px solid var(--primary-color, #6366f1);
    outline-offset: -2px;
}

/* Opción activa */
.language-option.active {
    background: var(--primary-light, #eef2ff);
    color: var(--primary-color, #6366f1);
}

.language-option.active::after {
    content: '✓';
    margin-left: auto;
    font-size: 0.75rem;
}

/* Flag en opción */
.language-option .flag {
    font-size: 1.25rem;
    line-height: 1;
}

/* Nombre del idioma */
.language-option .name {
    flex: 1;
}

/* ==========================================
   Variantes del Selector
   ========================================== */

/* Variante compacta (solo flag) */
.language-selector.compact .language-code,
.language-selector.compact .language-arrow {
    display: none;
}

.language-selector.compact .language-btn {
    padding: 0.5rem;
}

/* Variante outline */
.language-selector.outline .language-btn {
    background: transparent;
}

/* Variante filled */
.language-selector.filled .language-btn {
    background: var(--bg-secondary, #f3f4f6);
    border-color: transparent;
}

.language-selector.filled .language-btn:hover {
    background: var(--bg-tertiary, #e5e7eb);
}

/* ==========================================
   Dark Mode Support
   ========================================== */

@media (prefers-color-scheme: dark) {
    .language-btn {
        --border-color: #374151;
        --text-color: #e5e7eb;
        --hover-bg: #1f2937;
    }

    .language-dropdown {
        --dropdown-bg: #1f2937;
        --border-color: #374151;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    }

    .language-option {
        --text-color: #e5e7eb;
        --hover-bg: #374151;
    }

    .language-option.active {
        --primary-light: rgba(99, 102, 241, 0.2);
    }
}

/* Dark mode con clase */
.dark .language-btn,
[data-theme="dark"] .language-btn {
    --border-color: #374151;
    --text-color: #e5e7eb;
    --hover-bg: #1f2937;
}

.dark .language-dropdown,
[data-theme="dark"] .language-dropdown {
    --dropdown-bg: #1f2937;
    --border-color: #374151;
}

.dark .language-option,
[data-theme="dark"] .language-option {
    --text-color: #e5e7eb;
    --hover-bg: #374151;
}

/* ==========================================
   Responsive
   ========================================== */

@media (max-width: 640px) {
    .language-dropdown {
        min-width: 140px;
    }

    .language-option {
        padding: 0.5rem 0.75rem;
    }
}

/* En mobile, mostrar dropdown desde la izquierda si está muy a la derecha */
@media (max-width: 480px) {
    .language-selector {
        position: static;
    }

    .language-dropdown {
        right: 1rem;
        left: auto;
        max-width: calc(100vw - 2rem);
    }
}

/* ==========================================
   Animaciones
   ========================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-0.5rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animación de entrada del dropdown */
.language-selector.open .language-dropdown {
    animation: fadeIn 0.2s ease forwards;
}

/* ==========================================
   Utilidades i18n
   ========================================== */

/* Ocultar elementos según idioma */
[data-i18n-hide="es"]:lang(es),
[data-i18n-hide="en"]:lang(en),
[data-i18n-hide="pt"]:lang(pt) {
    display: none !important;
}

/* Mostrar elementos según idioma */
[data-i18n-show="es"] { display: none !important; }
[data-i18n-show="en"] { display: none !important; }
[data-i18n-show="pt"] { display: none !important; }

:lang(es) [data-i18n-show="es"],
:lang(en) [data-i18n-show="en"],
:lang(pt) [data-i18n-show="pt"] {
    display: block !important;
}

/* Indicador de carga de traducciones */
.i18n-loading {
    opacity: 0.5;
    pointer-events: none;
}

/* Transición suave al cambiar textos */
[data-i18n] {
    transition: opacity 0.15s ease;
}

.i18n-translating [data-i18n] {
    opacity: 0.7;
}

/* ==========================================
   Print Styles
   ========================================== */

@media print {
    .language-selector {
        display: none !important;
    }
}