/* Language Switcher Base Variables */
:root {
    --sd-lang-bg: #ffffff;
    --sd-lang-text: #1f2937;
    --sd-lang-border: #e5e7eb;
    --sd-lang-hover-bg: #f3f4f6;
    --sd-lang-active-tx: #2563eb;
    --sd-lang-active-bg: #eff6ff;
    --sd-lang-search-bg: #f9fafb;
    --sd-lang-scrollbar: #d1d5db;
    --sd-lang-scrollbar-hover: #9ca3af;
}

[data-theme="dark"] {
    --sd-lang-bg: #1f2937;
    --sd-lang-text: #f9fafb;
    --sd-lang-border: #374151;
    --sd-lang-hover-bg: #374151;
    --sd-lang-active-tx: #60a5fa;
    --sd-lang-active-bg: #213350;
    --sd-lang-search-bg: #111827;
    --sd-lang-scrollbar: #4b5563;
    --sd-lang-scrollbar-hover: #6b7280;
}

/* Desktop */
.sd-lang-switcher {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin-right: 4px; /* space between lang and theme toggle in header */
}

@media (max-width: 768px) {
    .sd-lang-switcher {
        display: none; /* hidden on mobile header, shown in drawer */
    }
}

.sd-lang-btn {
    background: transparent;
    border: none;
    color: var(--nav-link-color, inherit);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
}

[data-theme="dark"] .sd-lang-btn {
    color: #e5e7eb;
}

.sd-lang-btn:hover,
.sd-lang-btn[aria-expanded="true"] {
    background: var(--header-hover-bg, rgba(0,0,0,0.05));
}

[data-theme="dark"] .sd-lang-btn:hover,
[data-theme="dark"] .sd-lang-btn[aria-expanded="true"] {
    background: rgba(255,255,255,0.05);
}

.sd-lang-code {
    font-weight: 600;
}

/* Language Flag Icons */
.sd-lang-flag {
    font-size: 1.2em;
    line-height: 1;
    margin-right: 6px;
    vertical-align: middle;
}

.sd-lang-btn .sd-lang-flag {
    margin-right: 4px;
}

.sd-lang-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 8px 12px;
    color: var(--sd-lang-text);
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    text-decoration: none;
    box-sizing: border-box;
}

.sd-lang-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    width: 220px;
    max-height: 420px;
    background: var(--sd-lang-bg);
    border: 1px solid var(--sd-lang-border);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    list-style: none;
    padding: 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow: visible;
}

/* Search Box in Dropdown */
.sd-lang-search {
    padding: 12px;
    border-bottom: 1px solid var(--sd-lang-border);
    flex-shrink: 0;
    pointer-events: auto;
}

.sd-lang-search input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--sd-lang-border);
    border-radius: 8px;
    background: var(--sd-lang-search-bg);
    color: var(--sd-lang-text);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.sd-lang-search input:focus {
    border-color: var(--sd-lang-active-tx);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.sd-lang-search input::placeholder {
    color: #9ca3af;
}

[data-theme="dark"] .sd-lang-search input::placeholder {
    color: #6b7280;
}

/* Scrollable Language List */
.sd-lang-list {
    list-style: none;
    padding: 8px;
    margin: 0;
    overflow-y: auto;
    max-height: 320px;
    scrollbar-width: thin;
    scrollbar-color: var(--sd-lang-scrollbar) transparent;
}

.sd-lang-list::-webkit-scrollbar {
    width: 6px;
}

.sd-lang-list::-webkit-scrollbar-track {
    background: transparent;
}

.sd-lang-list::-webkit-scrollbar-thumb {
    background: var(--sd-lang-scrollbar);
    border-radius: 3px;
}

.sd-lang-list::-webkit-scrollbar-thumb:hover {
    background: var(--sd-lang-scrollbar-hover);
}

/* No Results Message */
.sd-lang-no-results {
    padding: 16px;
    text-align: center;
    color: #9ca3af;
    font-size: 14px;
    display: none;
}

.sd-lang-no-results.is-visible {
    display: block;
}

/* Language Count Badge */
.sd-lang-count {
    padding: 8px 12px;
    border-top: 1px solid var(--sd-lang-border);
    font-size: 12px;
    color: #6b7280;
    text-align: center;
    flex-shrink: 0;
}

[data-theme="dark"] .sd-lang-count {
    color: #9ca3af;
}

[data-theme="dark"] .sd-lang-dropdown {
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.sd-lang-switcher:hover .sd-lang-dropdown,
.sd-lang-btn[aria-expanded="true"] + .sd-lang-dropdown,
.sd-lang-dropdown.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sd-lang-option:hover {
    background: var(--sd-lang-hover-bg);
}

.sd-lang-option.is-active {
    color: var(--sd-lang-active-tx);
    font-weight: 600;
    background: var(--sd-lang-active-bg);
}

.sd-lang-option:visited,
.sd-lang-option:active,
.sd-lang-option:focus-visible {
    color: var(--sd-lang-text);
    text-decoration: none;
}

.sd-lang-option.is-active:visited,
.sd-lang-option.is-active:active,
.sd-lang-option.is-active:focus-visible {
    color: var(--sd-lang-active-tx);
}

/* Mobile Drawer specific tweaks overriding some behaviors if needed */
.sd-mobile-drawer__sub-item.sd-lang-option {
    padding: 12px 16px;
    margin-bottom: 2px;
    font-size: 15px;
}

/* Mobile Full Screen Language Modal */
@media (max-width: 768px) {
    .sd-lang-modal-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 9998;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s, visibility 0.3s;
    }
    
    .sd-lang-modal-overlay.is-open {
        opacity: 1;
        visibility: visible;
    }
    
    .sd-lang-modal {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) scale(0.95);
        width: 90%;
        max-width: 400px;
        max-height: 80vh;
        background: var(--sd-lang-bg);
        border-radius: 16px;
        box-shadow: 0 25px 50px rgba(0,0,0,0.25);
        z-index: 9999;
        display: flex;
        flex-direction: column;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .sd-lang-modal.is-open {
        opacity: 1;
        visibility: visible;
        transform: translate(-50%, -50%) scale(1);
    }
    
    .sd-lang-modal-header {
        padding: 20px;
        border-bottom: 1px solid var(--sd-lang-border);
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-shrink: 0;
    }
    
    .sd-lang-modal-title {
        font-size: 18px;
        font-weight: 600;
        color: var(--sd-lang-text);
        margin: 0;
    }
    
    .sd-lang-modal-close {
        background: transparent;
        border: none;
        padding: 8px;
        cursor: pointer;
        color: var(--sd-lang-text);
        border-radius: 8px;
        transition: background 0.2s;
    }
    
    .sd-lang-modal-close:hover {
        background: var(--sd-lang-hover-bg);
    }
    
    .sd-lang-modal-search {
        padding: 16px 20px;
        border-bottom: 1px solid var(--sd-lang-border);
        flex-shrink: 0;
    }
    
    .sd-lang-modal-search input {
        width: 100%;
        padding: 12px 16px;
        border: 1px solid var(--sd-lang-border);
        border-radius: 10px;
        background: var(--sd-lang-search-bg);
        color: var(--sd-lang-text);
        font-size: 16px;
        outline: none;
    }
    
    .sd-lang-modal-list {
        list-style: none;
        padding: 8px;
        margin: 0;
        overflow-y: auto;
        flex: 1;
        scrollbar-width: thin;
        scrollbar-color: var(--sd-lang-scrollbar) transparent;
    }
    
    .sd-lang-modal-list::-webkit-scrollbar {
        width: 6px;
    }
    
    .sd-lang-modal-list::-webkit-scrollbar-thumb {
        background: var(--sd-lang-scrollbar);
        border-radius: 3px;
    }
    
    .sd-lang-modal-option {
        display: flex;
        align-items: center;
        gap: 10px;
        width: 100%;
        text-align: left;
        background: transparent;
        border: none;
        padding: 14px 16px;
        color: var(--sd-lang-text);
        font-size: 16px;
        font-weight: 500;
        border-radius: 10px;
        cursor: pointer;
        transition: background 0.2s;
        text-decoration: none;
        box-sizing: border-box;
    }
    
    .sd-lang-modal-option:hover {
        background: var(--sd-lang-hover-bg);
    }
    
    .sd-lang-modal-option.is-active {
        color: var(--sd-lang-active-tx);
        font-weight: 600;
        background: var(--sd-lang-active-bg);
    }

    .sd-lang-modal-option:visited,
    .sd-lang-modal-option:active,
    .sd-lang-modal-option:focus-visible {
        color: var(--sd-lang-text);
        text-decoration: none;
    }

    .sd-lang-modal-option.is-active:visited,
    .sd-lang-modal-option.is-active:active,
    .sd-lang-modal-option.is-active:focus-visible {
        color: var(--sd-lang-active-tx);
    }
    
    .sd-lang-modal-option .sd-lang-flag {
        font-size: 1.4em;
        margin-right: 12px;
    }
}

/* Tablet adjustments */
@media (min-width: 769px) and (max-width: 1024px) {
    .sd-lang-dropdown {
        width: 240px;
        max-height: 380px;
    }
    
    .sd-lang-list {
        max-height: 280px;
    }
}