/**
 * ZMCOR Language Switcher 2026
 * Progressive disclosure + visual feedback
 * Enhanced UX for multilingual navigation
 *
 * @version 1.0.0
 * @author ZMCOR
 */

/* ====================================
   2026 Language Switcher Styles
   ==================================== */

#language-switcher {
    position: relative;
    z-index: 100;
}

/* ====================================
   Enhanced Current Language Button
   ==================================== */

.current-language {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.04);
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s var(--nav-ease-smooth);
}

.current-language:hover {
    background: rgba(0, 0, 0, 0.06);
    border-color: rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.current-language:active {
    transform: translateY(0);
}

.current-language:focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
}

/* Loading state with visual feedback */
.current-language.loading {
    pointer-events: none;
    opacity: 0.7;
}

.current-language.loading .lang-code {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ====================================
   Flag Icons Enhancement
   ==================================== */

.flag-icon {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s var(--nav-ease-elastic);
}

.current-language:hover .flag-icon {
    transform: scale(1.1);
}

/* ====================================
   Language Menu with Glassmorphism
   ==================================== */

.language-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 280px;
    max-height: 400px;
    overflow-y: auto;
    overflow-x: hidden;
    background: var(--nav-glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--nav-glass-border);
    border-radius: 12px;
    box-shadow: var(--nav-glass-shadow-strong);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.95);
    transition: all 0.2s var(--nav-ease-smooth);
    z-index: 100;
    scrollbar-width: thin;
    scrollbar-color: var(--color-neutral-300) transparent;
}

/* Custom scrollbar for webkit browsers */
.language-menu::-webkit-scrollbar {
    width: 6px;
}

.language-menu::-webkit-scrollbar-track {
    background: transparent;
}

.language-menu::-webkit-scrollbar-thumb {
    background: var(--color-neutral-300);
    border-radius: 3px;
}

.language-menu::-webkit-scrollbar-thumb:hover {
    background: var(--color-neutral-400);
}

/* Language menu visible state */
.language-menu:not([hidden]) {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* ====================================
   Language Option Items
   ==================================== */

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.875rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--color-neutral-700);
    transition: all 0.15s var(--nav-ease-smooth);
    position: relative;
    overflow: hidden;
}

/* Ripple effect */
.lang-option::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(29, 78, 216, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity 0.2s var(--nav-ease-smooth);
}

.lang-option:hover::before {
    opacity: 1;
}

.lang-option:hover {
    background: rgba(29, 78, 216, 0.08);
    transform: translateX(4px);
}

.lang-option:focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: -2px;
    background: rgba(29, 78, 216, 0.1);
}

/* Active/Current language indicator */
.lang-option.current {
    background: rgba(29, 78, 216, 0.1);
    font-weight: var(--font-weight-medium);
}

.lang-option.current::after {
    content: '✓';
    margin-left: auto;
    color: var(--color-brand-primary);
    font-weight: var(--font-weight-bold);
}

/* Unavailable translation state */
.lang-option.unavailable {
    opacity: 0.6;
    cursor: not-allowed;
}

.lang-option.unavailable:hover {
    transform: none;
    background: rgba(255, 193, 7, 0.1);
}

/* ====================================
   Translation Status Indicators
   ==================================== */

.lang-option[data-translation-status="partial"]::before {
    content: 'Partial';
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    background: rgba(255, 193, 7, 0.2);
    color: #b45309;
    border-radius: 4px;
    margin-left: auto;
    font-weight: var(--font-weight-medium);
}

.lang-option[data-translation-status="unavailable"]::before {
    content: 'Coming Soon';
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    background: rgba(107, 114, 128, 0.2);
    color: #6b7280;
    border-radius: 4px;
    margin-left: auto;
    font-weight: var(--font-weight-medium);
}

/* ====================================
   Language Name and Native Name
   ==================================== */

.lang-name {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.lang-name-primary {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

.lang-name-native {
    font-size: 0.75rem;
    color: var(--color-neutral-500);
}

/* ====================================
   Section Dividers in Language Menu
   ==================================== */

.language-section-header {
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-neutral-500);
    padding: 0.5rem 0.875rem;
    margin-top: 0.5rem;
}

/* ====================================
   Toast Notifications
   ==================================== */

.language-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    min-width: 300px;
    max-width: 400px;
    padding: 1rem;
    background: var(--nav-glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--nav-glass-border);
    border-radius: 12px;
    box-shadow: var(--nav-glass-shadow-strong);
    animation: toastIn 0.3s var(--nav-ease-bounce);
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.language-toast.hiding {
    animation: toastOut 0.3s var(--nav-ease-smooth) forwards;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes toastOut {
    to {
        opacity: 0;
        transform: translateY(-20px) scale(0.9);
    }
}

/* Toast icon */
.toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-brand-primary);
}

/* Toast content */
.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.toast-message {
    font-size: 0.875rem;
    color: var(--color-neutral-600);
    line-height: 1.4;
}

/* Close button for toast */
.toast-close {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--color-neutral-500);
    transition: all 0.15s var(--nav-ease-smooth);
}

.toast-close:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--color-neutral-700);
}

/* ====================================
   Mobile Optimizations
   ==================================== */

@media (max-width: 768px) {
    .language-menu {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: 100%;
        max-height: 70vh;
        border-radius: 20px 20px 0 0;
        transform: translateY(100%);
        transition: transform 0.3s var(--nav-ease-bounce);
    }

        .language-menu:not([hidden]) {
            transform: translateY(0);
        }

        /* Drag handle */
        .language-menu::before {
            content: '';
            position: sticky;
            top: 8px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 4px;
            background: rgba(0, 0, 0, 0.2);
            border-radius: 2px;
            display: block;
            margin-bottom: 8px;
        }

        /* Grid layout for languages */
        .language-menu {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.5rem;
            padding: 1rem;
        }

        .lang-option {
            flex-direction: column;
            text-align: center;
            padding: 1rem;
            gap: 0.5rem;
        }

        .lang-option .flag-icon {
            width: 32px;
            height: 24px;
        }

        /* Toast positioning on mobile */
        .language-toast {
            bottom: 1rem;
            right: 1rem;
            left: 1rem;
            min-width: auto;
        }
}

/* ====================================
   Accessibility & Performance
   ==================================== */

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .current-language.loading .lang-code,
    .lang-option,
    .language-menu,
    .language-toast {
        animation: none !important;
        transition: none !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .current-language {
        background: rgba(0, 0, 0, 0.1);
        border: 2px solid var(--color-neutral-900);
    }

    .lang-option:hover {
        background: rgba(29, 78, 216, 0.2);
        border: 1px solid var(--color-brand-primary);
    }
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus management */
.lang-option:focus,
.current-language:focus {
    outline: none;
}

.lang-option:focus-visible,
.current-language:focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
    border-radius: 4px;
    z-index: 1;
}