/* Language Switcher and Header Controls */

/* Header Base Styles */
.header {
    background: var(--primary-color);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-xl);
    max-width: 1320px;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-left .mobile-menu-toggle {
    margin-left: auto;
    padding: 10px;
}

.header-title {
    color: var(--text-light);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    flex: 1;
}

@media (max-width: 639px) {
    .header-title {
        font-size: 1.25rem;
    }
}

/* Navigation Styles */
.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

/* Renamed from .header-buttons to .header-buttons-group */
.header-buttons-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* New Language Dropdown Styles */
.language-dropdown {
    position: relative;
    display: inline-block;
}

.language-dropdown-toggle {
    background: rgba(255, 255, 255, 0.05); /* Subtle background */
    color: var(--text-light); /* Assuming header has dark background */
    border: 1px solid transparent;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.6em; /* Increased gap slightly */
    font-family: inherit;
    font-size: 0.9rem; /* Slightly smaller font */
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.language-dropdown-toggle:hover,
.language-dropdown-toggle:focus,
.language-dropdown.open .language-dropdown-toggle { /* Style when open */
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
}

.language-dropdown-toggle .lang-flag-icon {
    width: 20px; /* Consistent with previous */
    height: auto;
    border-radius: 2px; /* Slightly rounded flags */
}

.language-dropdown-toggle .current-lang-name {
    font-weight: 500;
}

.language-dropdown-toggle .dropdown-arrow {
    margin-left: auto;
    transition: transform 0.2s ease;
    fill: currentColor; /* Ensure arrow takes text color */
}

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

.language-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + var(--spacing-xs)); /* Position below the button with a small gap */
    right: 0;
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg); /* Enhanced shadow */
    list-style: none;
    margin: 0;
    padding: var(--spacing-xs) 0;
    z-index: 1050; /* Ensure it's above other header elements and modals */
    width: 100%; /* Match parent width */
    min-width: max-content; /* Ensure it's at least as wide as the content */
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.15s ease-out, transform 0.15s ease-out;
    overflow: hidden; /* For rounded corners on items */
}

.language-dropdown.open .language-dropdown-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.language-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.7em; /* Increased gap */
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    color: var(--text-dark);
    white-space: nowrap;
    font-size: 0.9rem;
    transition: background-color 0.2s ease, color 0.2s ease;
    min-width: 0; /* Allow text to truncate if needed */
    overflow: hidden;
}

.language-dropdown-item:hover,
.language-dropdown-item:focus {
    background-color: var(--primary-color-light); /* Use a light variant of primary */
    color: var(--primary-color-dark); /* Darker text on hover for contrast */
    outline: none;
}

.language-dropdown-item .lang-flag-icon {
    width: 20px;
    height: auto;
    border-radius: 2px;
}

.lang-flag-unicode { /* Kept if unicode flags are ever a fallback */
    margin-right: 0.3em;
}

/* Mobile Styles */
@media (max-width: 639px) {
    .header-nav {
        padding: var(--spacing-xl) var(--spacing-md);
        gap: var(--spacing-lg);
        background: linear-gradient(
            to bottom,
            var(--primary-color) 0%,
            var(--primary-color-dark) 100%
        );
        color: var(--text-light);
    }

    .header-nav.active {
        display: flex;
        animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    @keyframes slideIn {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .header-buttons-group {
        order: 1;
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-md);
    }

    .header-buttons-group .btn {
        width: 100%;
        justify-content: center;
        background-color: rgba(255, 255, 255, 0.15);
        color: var(--text-light);
        border: 1px solid rgba(255, 255, 255, 0.2);
        padding: var(--spacing-md);
        text-align: center;
        font-size: 1rem;
        font-weight: 500;
        border-radius: var(--radius-lg);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .header-buttons-group .btn:hover,
    .header-buttons-group .btn:focus {
        background-color: rgba(255, 255, 255, 0.25);
        border-color: rgba(255, 255, 255, 0.3);
        transform: translateY(-1px);
    }

    .header-buttons-group .btn:active {
        transform: translateY(0);
    }

    .language-dropdown {
        width: 100%;
        order: 2;
        margin-top: var(--spacing-sm);
    }

    .language-dropdown-toggle {
        justify-content: space-between;
        width: 100%;
        padding: var(--spacing-md);
        background: rgba(255, 255, 255, 0.15);
        color: var(--text-light);
        border-radius: var(--radius-lg);
        border: 1px solid rgba(255, 255, 255, 0.2);
        font-weight: 500;
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .language-dropdown-toggle .current-lang-name {
        font-size: 1rem;
    }
    .language-dropdown-toggle:hover,
    .language-dropdown-toggle:focus,
    .language-dropdown.open .language-dropdown-toggle {
        background: rgba(255, 255, 255, 0.35); /* Adjusted hover/open opacity */
        border-color: rgba(255, 255, 255, 0.35);
    }

    .language-dropdown-menu {
        position: static;
        width: 100%;
        margin-top: var(--spacing-sm);
        background-color: transparent;
        border: none;
        padding: 0;
        max-height: none;
        transform: none;
        animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
        }
        to {
            opacity: 1;
        }
    }
    
    .language-dropdown-item {
        padding: var(--spacing-md);
        color: var(--text-light);
        background-color: rgba(0, 0, 0, 0.2);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-lg);
        margin-bottom: var(--spacing-sm);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .language-dropdown-item:last-child {
        margin-bottom: 0;
    }

    .language-dropdown-item:hover,
    .language-dropdown-item:focus {
        background-color: rgba(0, 0, 0, 0.3);
        border-color: rgba(255, 255, 255, 0.2);
        transform: translateY(-1px);
    }

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

/* Error message style for language switcher */
.language-dropdown-error {
    color: var(--error-color, red);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
}