/* DARWIN Platform Navigation Component Styles */

.navbar {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 var(--spacing-lg);
}

/* Brand Section */
.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    color: var(--color-primary);
}

.navbar-logo {
    height: 40px;
    width: auto;
}

.navbar-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin: 0;
}

.navbar-version {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    font-weight: var(--font-weight-normal);
    margin-left: var(--spacing-xs);
    opacity: 0.8;
}

/* Mobile Toggle Button */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    color: var(--color-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.navbar-toggle:hover {
    background-color: var(--color-gray-100);
}

.navbar-toggle.active {
    background-color: var(--color-gray-100);
}

/* Navigation Menu */
.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    flex: 1;
    justify-content: space-between;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-left: var(--spacing-xl);
}

/* Navigation Links */
.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-50);
    text-decoration: none;
}

.nav-link.active {
    color: var(--color-white);
    background-color: var(--color-primary);
}

.nav-link.active:hover {
    background-color: var(--color-primary-dark);
}

.nav-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

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

.nav-dropdown-toggle {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    font-size: inherit;
}

.nav-dropdown-arrow {
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-base);
}

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

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 200px;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease-out;
    z-index: var(--z-dropdown);
    overflow: hidden;
}

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

.nav-dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    transition: all var(--transition-base);
}

.nav-dropdown-item:first-child {
    border-top-left-radius: calc(var(--radius-md) - 1px);
    border-top-right-radius: calc(var(--radius-md) - 1px);
}

.nav-dropdown-item:last-child {
    border-bottom-left-radius: calc(var(--radius-md) - 1px);
    border-bottom-right-radius: calc(var(--radius-md) - 1px);
}

.nav-dropdown-item:hover {
    background-color: var(--color-gray-50);
    color: var(--color-primary);
}

.nav-dropdown-item.active {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.nav-dropdown-item.active:hover {
    background-color: var(--color-primary-dark);
}

/* Active dropdown parent indicator */
.nav-dropdown.active .nav-dropdown-toggle {
    color: var(--color-primary);
}

/* Last Updated Section */
.nav-last-updated {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    opacity: 0.8;
}

.nav-last-updated-label {
    opacity: 0.6;
    font-weight: var(--font-weight-normal);
}

.nav-last-updated-time {
    font-weight: var(--font-weight-normal);
    color: var(--color-text-tertiary);
}

/* Mobile Styles */
/* Large breakpoint: 1024px (--breakpoint-lg) */
@media (max-width: 1024px) {
    .navbar-container {
        padding: 0 var(--spacing-md);
    }

    .navbar-nav {
        margin-left: var(--spacing-md);
    }

    .nav-link span {
        display: none;
    }

    .nav-dropdown-toggle span {
        display: none;
    }

    .nav-dropdown-arrow {
        display: none;
    }

    .nav-last-updated-label {
        display: none;
    }
}

/* Medium breakpoint: 768px (--breakpoint-md) */
@media (max-width: 768px) {
    .navbar-toggle {
        display: block;
    }

    .navbar-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-md);
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        gap: var(--spacing-md);
        display: none;
    }

    .navbar-menu.show {
        display: flex;
    }

    .navbar-nav {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-xs);
        margin-left: 0;
    }

    .nav-link {
        width: 100%;
        justify-content: flex-start;
    }

    .nav-link span {
        display: inline;
    }

    /* Mobile dropdown styles */
    .nav-dropdown {
        width: 100%;
    }

    .nav-dropdown-toggle {
        width: 100%;
        justify-content: space-between;
    }

    .nav-dropdown-toggle span {
        display: inline;
    }

    .nav-dropdown-arrow {
        display: inline-block;
    }

    .nav-dropdown-menu {
        position: static;
        width: 100%;
        margin-top: var(--spacing-xs);
        margin-bottom: var(--spacing-xs);
        padding-left: var(--spacing-md);
        box-shadow: none;
        border: none;
        background-color: transparent;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
    }

    .nav-dropdown.open .nav-dropdown-menu {
        display: block;
    }

    .nav-dropdown-item {
        padding-left: var(--spacing-lg);
        border-radius: var(--radius-md);
    }

    .nav-last-updated {
        padding: var(--spacing-md) 0;
        border-top: 1px solid var(--color-gray-200);
        justify-content: center;
    }

    .nav-last-updated-label {
        display: inline;
    }
}

/* Animation for mobile menu */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar-menu.show {
    animation: slideDown 0.2s ease-out;
}

/* Theme Toggle Button */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
}

.theme-toggle:hover {
    background-color: var(--color-gray-100);
    color: var(--color-primary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    transition: all var(--transition-base);
    position: absolute;
}

/* Show sun icon in light mode, moon icon in dark mode */
.theme-toggle-light {
    opacity: 1;
    transform: rotate(0deg);
}

.theme-toggle-dark {
    opacity: 0;
    transform: rotate(-180deg);
}

[data-theme="dark"] .theme-toggle-light {
    opacity: 0;
    transform: rotate(180deg);
}

[data-theme="dark"] .theme-toggle-dark {
    opacity: 1;
    transform: rotate(0deg);
}

/* Dark Mode Styles */
[data-theme="dark"] {
    .navbar {
        background-color: var(--color-bg-secondary);
        border-bottom-color: var(--color-gray-700);
    }

    .navbar-toggle:hover {
        background-color: var(--color-gray-700);
    }

    .navbar-toggle.active {
        background-color: var(--color-gray-700);
    }

    .nav-link:hover {
        background-color: var(--color-gray-700);
    }

    .nav-link.active {
        background-color: var(--color-primary);
    }

    .theme-toggle:hover {
        background-color: var(--color-gray-700);
        color: var(--color-secondary-light);
    }

    /* Dropdown dark mode styles */
    .nav-dropdown-menu {
        background-color: var(--color-bg-secondary);
        border-color: var(--color-gray-700);
    }

    .nav-dropdown-item:hover {
        background-color: var(--color-gray-700);
    }

    .nav-dropdown-item.active {
        background-color: var(--color-primary);
    }

    .nav-dropdown-item.active:hover {
        background-color: var(--color-primary-dark);
    }

    /* Mobile menu dark mode */
    @media (max-width: 768px) {
        .navbar-menu {
            background-color: var(--color-bg-secondary);
            border-bottom-color: var(--color-gray-700);
        }

        .nav-last-updated {
            border-top-color: var(--color-gray-700);
        }
    }
}