/**
 * AI Blog Publisher - Frontend Styles
 * Clean, Simple Language Switcher - Theme Adaptive
 */

/* ============================================
   Base Styles - Theme Color Integration
   ============================================ */
:root{
    --switcher-bg: var(--wp--preset--color--base, #ffffff);
    --switcher-text: var(--wp--preset--color--contrast, #111827);
    --switcher-border: var(--wp--preset--color--contrast, #e5e7eb);
    --switcher-accent: var(--wp--preset--color--primary, #3b82f6);
    --switcher-hover-bg: var(--wp--preset--color--secondary, #374151);
}
.ai-blog-language-switcher {
    
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    margin: 32px 0;
}

/* ============================================
   STYLE 1: Horizontal List (Default)
   ============================================ */

.ai-blog-language-switcher[data-style="list"],
.ai-blog-language-switcher:not([data-style]) {
    background: var(--switcher-bg);
    border: 1px solid var(--switcher-border);
    border-radius: 8px;
    padding: 20px;
}

.ai-blog-language-switcher[data-style="list"] .ai-blog-lang-header,
.ai-blog-language-switcher:not([data-style]) .ai-blog-lang-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--switcher-border);
}

.ai-blog-lang-icon {
    font-size: 18px;
    line-height: 1;
    color: var(--switcher-text);
    opacity: 0.7;
}

.ai-blog-lang-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--switcher-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ai-blog-language-switcher[data-style="list"] .ai-blog-lang-options,
.ai-blog-popup-modal .ai-blog-lang-options,
.ai-blog-language-switcher:not([data-style]) .ai-blog-lang-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ai-blog-language-switcher[data-style="list"] .ai-blog-lang-option,
.ai-blog-popup-modal .ai-blog-lang-option,
.ai-blog-language-switcher:not([data-style]) .ai-blog-lang-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--switcher-bg);
    border: 1px solid var(--switcher-border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--switcher-text);
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.ai-blog-language-switcher[data-style="list"] .ai-blog-lang-option:hover,
.ai-blog-popup-modal .ai-blog-lang-option:hover,
.ai-blog-language-switcher:not([data-style]) .ai-blog-lang-option:hover {
    background: var(--switcher-hover-bg);
    border-color: var(--switcher-accent);
    color: var(--switcher-accent);
}

.ai-blog-language-switcher[data-style="list"] .ai-blog-lang-option.current,
.ai-blog-popup-modal .ai-blog-lang-option.current,
.ai-blog-language-switcher:not([data-style]) .ai-blog-lang-option.current {
    background: var(--switcher-accent);
    border-color: var(--switcher-accent);
    color: #ffffff;
    cursor: default;
}

.ai-blog-lang-flag {
    font-size: 18px;
    line-height: 1;
}

.ai-blog-lang-name {
    font-size: 14px;
    white-space: nowrap;
}

/* ============================================
   STYLE 2: Dropdown Select
   ============================================ */

.ai-blog-language-switcher[data-style="dropdown"] {
    background: transparent;
    border: none;
    padding: 0;
    max-width: 280px;
}

.ai-blog-language-switcher[data-style="dropdown"] .ai-blog-lang-header {
    display: none;
}

.ai-blog-language-switcher[data-style="dropdown"] .ai-blog-lang-options {
    position: relative;
}

.ai-blog-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    padding: 10px 16px;
    background: var(--switcher-bg);
    border: 1px solid var(--switcher-border);
    border-radius: 6px;
    color: var(--switcher-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ai-blog-dropdown-toggle:hover {
    border-color: var(--switcher-accent);
}

.ai-blog-dropdown-toggle:focus {
    outline: 2px solid var(--switcher-accent);
    outline-offset: 2px;
}

.ai-blog-dropdown-current {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-blog-dropdown-arrow {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--switcher-text);
    transition: transform 0.2s ease;
}

.ai-blog-dropdown-toggle[aria-expanded="true"] .ai-blog-dropdown-arrow {
    transform: rotate(180deg);
}

.ai-blog-dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--switcher-bg);
    border: 1px solid var(--switcher-border);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
}

.ai-blog-dropdown-menu.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.ai-blog-language-switcher[data-style="dropdown"] .ai-blog-lang-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 16px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--switcher-border);
    border-radius: 0;
    text-decoration: none;
    color: var(--switcher-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s ease;
}

.ai-blog-language-switcher[data-style="dropdown"] .ai-blog-lang-option:last-child {
    border-bottom: none;
}

.ai-blog-language-switcher[data-style="dropdown"] .ai-blog-lang-option:hover {
    background: var(--switcher-hover-bg);
    color: var(--switcher-text);
}

.ai-blog-language-switcher[data-style="dropdown"] .ai-blog-lang-option.current {
    background: var(--switcher-accent);
    color: #ffffff;
}

.ai-blog-language-switcher[data-style="dropdown"] .ai-blog-lang-option.current:hover {
    background: var(--switcher-accent);
    color: #ffffff;
}

/* ============================================
   STYLE 3: Popup Modal
   ============================================ */

.ai-blog-language-switcher[data-style="popup"] {
    background: transparent;
    border: none;
    padding: 0;
}

.ai-blog-language-switcher[data-style="popup"] .ai-blog-lang-header {
    display: none;
}

.ai-blog-popup-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--switcher-bg);
    border: 1px solid var(--switcher-border);
    border-radius: 6px;
    color: var(--switcher-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ai-blog-popup-trigger:hover {
    border-color: var(--switcher-accent);
    color: var(--switcher-accent);
}

.ai-blog-popup-trigger:focus {
    outline: 2px solid var(--switcher-accent);
    outline-offset: 2px;
}

.ai-blog-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    margin-bottom: 0 !important;
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.ai-blog-popup-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.ai-blog-popup-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--switcher-bg);
    border: 1px solid var(--switcher-border);
    border-radius: 12px;
    padding: 24px;
    max-width: 400px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.ai-blog-popup-modal.is-open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.ai-blog-popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--switcher-border);
}

.ai-blog-popup-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--switcher-text);
}

.ai-blog-popup-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: var(--switcher-text);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.15s ease;
}

.ai-blog-popup-close:hover {
    background: var(--switcher-hover-bg);
}

.ai-blog-popup-close:focus {
    outline: 2px solid var(--switcher-accent);
    outline-offset: 2px;
}

.ai-blog-language-switcher[data-style="popup"] .ai-blog-lang-options {
    display: grid;
    gap: 8px;
}

.ai-blog-language-switcher[data-style="popup"] .ai-blog-lang-option {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    border: 1px solid var(--switcher-border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--switcher-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.ai-blog-language-switcher[data-style="popup"] .ai-blog-lang-option:hover {
    background: var(--switcher-hover-bg);
    border-color: var(--switcher-accent);
}

.ai-blog-language-switcher[data-style="popup"] .ai-blog-lang-option.current {
    background: var(--switcher-accent);
    border-color: var(--switcher-accent);
    color: #ffffff;
}

.ai-blog-language-switcher[data-style="popup"] .ai-blog-lang-option.current:hover {
    background: var(--switcher-accent);
}

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

@media (prefers-color-scheme: dark) {
    .ai-blog-language-switcher {
        --switcher-bg: #1f2937;
        --switcher-text: #f3f4f6;
        --switcher-border: #374151;
        --switcher-hover-bg: #374151;
    }
    
    .ai-blog-popup-overlay {
        background: rgba(0, 0, 0, 0.7);
    }
}

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

@media (max-width: 768px) {
    .ai-blog-language-switcher {
        margin: 24px 0;
    }
    
    .ai-blog-language-switcher[data-style="list"],
    .ai-blog-language-switcher:not([data-style]) {
        padding: 16px;
    }
    
    .ai-blog-lang-title {
        font-size: 12px;
    }
    
    .ai-blog-language-switcher[data-style="list"] .ai-blog-lang-option,
    .ai-blog-language-switcher:not([data-style]) .ai-blog-lang-option {
        padding: 7px 12px;
        font-size: 13px;
    }
    
    .ai-blog-language-switcher[data-style="dropdown"] {
        max-width: 100%;
    }
    
    .ai-blog-popup-modal {
        width: 95%;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .ai-blog-language-switcher[data-style="list"] .ai-blog-lang-options,
    .ai-blog-popup-modal .ai-blog-lang-options,
    .ai-blog-language-switcher:not([data-style]) .ai-blog-lang-options {
        flex-direction: column;
    }
    
    .ai-blog-language-switcher[data-style="list"] .ai-blog-lang-option,
    .ai-blog-popup-modal .ai-blog-lang-option,
    .ai-blog-language-switcher:not([data-style]) .ai-blog-lang-option {
        width: 100%;
    }
}

/* ============================================
   Accessibility
   ============================================ */

.ai-blog-lang-option:focus,
.ai-blog-dropdown-toggle:focus,
.ai-blog-popup-trigger:focus,
.ai-blog-popup-close:focus {
    outline: 2px solid var(--switcher-accent);
    outline-offset: 2px;
}

.ai-blog-lang-option:focus:not(:focus-visible),
.ai-blog-dropdown-toggle:focus:not(:focus-visible),
.ai-blog-popup-trigger:focus:not(:focus-visible),
.ai-blog-popup-close:focus:not(:focus-visible) {
    outline: none;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .ai-blog-language-switcher[data-style="list"],
    .ai-blog-popup-modal,
    .ai-blog-language-switcher:not([data-style]),
    .ai-blog-lang-option,
    .ai-blog-dropdown-toggle,
    .ai-blog-popup-trigger,
    .ai-blog-popup-modal {
        border-width: 2px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ai-blog-language-switcher *,
    .ai-blog-popup-overlay,
    .ai-blog-popup-modal,
    .ai-blog-dropdown-menu {
        transition: none !important;
        animation: none !important;
    }
}

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

@media print {
    .ai-blog-language-switcher,
    .ai-blog-popup-overlay,
    .ai-blog-popup-modal {
        display: none !important;
    }
}

/* ============================================
   RTL Support
   ============================================ */

[dir="rtl"] .ai-blog-lang-header,
[dir="rtl"] .ai-blog-lang-option,
[dir="rtl"] .ai-blog-dropdown-toggle,
[dir="rtl"] .ai-blog-popup-header {
    direction: rtl;
}

/* ============================================
   Utility Classes
   ============================================ */

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