/**
 * Navigation Component CSS
 * Cho template-parts/components/navigation.php
 * 
 * @package Strongbody_Theme
 */

/* Main Navigation Container */
.main-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    margin: 0 var(--spacing-sm);
    min-width: 0; /* Cho phép flex item shrink */
    overflow: visible; /* Cho phép overflow visible */
}

.main-navigation .nav-container {
    width: 100%;
    max-width: 700px; /* Tăng max-width để tránh cắt text */
    overflow: visible; /* Cho phép overflow visible */
}

.main-navigation .nav-menu-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    overflow: visible; /* Cho phép overflow visible */
}

/* Navigation Menu */
.main-navigation .nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md); /* Giảm gap */
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap; /* Ngăn wrap xuống dòng */
    width: 100%;
    min-width: 0; /* Cho phép shrink */
}

.main-navigation .nav-menu li {
    position: relative;
    margin: 0;
    white-space: nowrap; /* Ngăn text wrap */
}

.main-navigation .nav-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all 0.3s ease;
    border-radius: var(--radius-md);
    white-space: nowrap; /* Ngăn text wrap */
    line-height: 1.2;
}

.main-navigation .nav-menu a:hover,
.main-navigation .nav-menu a:focus {
    color: var(--accent-color);
    background: var(--accent-color-light);
    transform: translateY(-1px);
}

.main-navigation .nav-menu a:active {
    transform: translateY(0);
}

/* Current Page Indicator */
.main-navigation .nav-menu .current-menu-item > a,
.main-navigation .nav-menu .current_page_item > a {
    color: var(--accent-color);
    background: var(--accent-color-light);
    font-weight: 600;
}

/* Submenu Support */
.main-navigation .nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.main-navigation .nav-menu li:hover > .sub-menu,
.main-navigation .nav-menu li:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.main-navigation .nav-menu .sub-menu li {
    margin: 0;
    border-bottom: 1px solid var(--border-color);
}

.main-navigation .nav-menu .sub-menu li:last-child {
    border-bottom: none;
}

.main-navigation .nav-menu .sub-menu a {
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-primary);
    font-size: var(--text-sm);
    border-radius: 0;
}

.main-navigation .nav-menu .sub-menu a:hover,
.main-navigation .nav-menu .sub-menu a:focus {
    background: var(--bg-secondary);
    color: var(--accent-color);
    padding-left: calc(var(--spacing-lg) + 8px);
}

/* Header Layout Adjustments */
.header-content .header-row {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
}

.header-logo {
    grid-column: 1;
    flex-shrink: 0;
}

.header-navigation {
    grid-column: 2;
    justify-self: center;
}

.header-menu-toggle {
    grid-column: 3;
    justify-self: end;
}

.header-actions {
    grid-column: 4;
    justify-self: end;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .main-navigation .nav-menu {
        gap: var(--spacing-sm);
    }
    
    .main-navigation .nav-menu a {
        font-size: var(--text-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .main-navigation .nav-container {
        max-width: 500px;
    }
}

@media (max-width: 900px) {
    .main-navigation .nav-menu {
        gap: var(--spacing-xs);
    }
    
    .main-navigation .nav-menu a {
        font-size: var(--text-xs);
        padding: var(--spacing-xs);
    }
    
    .main-navigation .nav-container {
        max-width: 450px;
    }
}

@media (max-width: 768px) {
    .main-navigation {
        display: none; /* Ẩn navigation trên mobile */
    }
    
    .header-content .header-row {
        grid-template-columns: auto auto auto;
        gap: var(--spacing-sm);
    }
    
    .header-navigation {
        display: none;
    }
    
    .header-menu-toggle {
        grid-column: 2;
    }
    
    .header-actions {
        grid-column: 3;
    }
}

@media (max-width: 480px) {
    .header-content .header-row {
        grid-template-columns: auto auto;
        gap: var(--spacing-xs);
    }
    
    .header-logo {
        grid-column: 1;
    }
    
    .header-menu-toggle {
        grid-column: 2;
        justify-self: end;
    }
    
    .header-actions {
        display: none; /* Ẩn actions trên mobile nhỏ */
    }
}

/* Fallback Menu Styles */
.main-navigation .nav-menu.fallback-menu {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.main-navigation .nav-menu.fallback-menu li {
    margin: 0;
}

.main-navigation .nav-menu.fallback-menu a {
    font-size: var(--text-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    white-space: nowrap;
}

/* Accessibility */
.main-navigation .nav-menu a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .main-navigation .nav-menu a {
        border: 1px solid currentColor;
    }
    
    .main-navigation .nav-menu .sub-menu {
        border: 2px solid currentColor;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .main-navigation .nav-menu a,
    .main-navigation .nav-menu .sub-menu {
        transition: none;
    }
}