/*
 * Header Component
 * Site header, navigation, and branding styles
 */

/* =============================================================================
   Site Header
   ============================================================================= */

.site-header {
    background-color: var(--blue-invest-dark);
    color: var(--text-light);
    padding: 1.25rem 0;
    transition: all var(--transition-base);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

/* Scrolled header state */
.site-header.scrolled {
    background-color: var(--blue-invest-dark);
    padding: 0.625rem 0;
    box-shadow: var(--shadow-medium);
}

/* =============================================================================
   Site Branding
   ============================================================================= */

.site-branding {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.brand-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-container.position-above,
.brand-container.position-below {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}

.brand-container.position-left {
    flex-direction: row;
    align-items: center;
}

.brand-container.position-right {
    flex-direction: row-reverse;
    align-items: center;
}

.site-logo {
    display: flex;
    align-items: center;
}

.site-logo-img {
    max-height: 60px;
    width: auto;
    transition: all var(--transition-base);
}

.site-header.scrolled .site-logo-img {
    max-height: 50px;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-link:focus-visible {
    outline: 2px solid var(--blue-invest-accent);
    outline-offset: 2px;
    border-radius: var(--radius-small);
}

/* Site Text Branding */
.site-text-branding {
    display: flex;
    flex-direction: column;
}

.site-title {
    margin: 0;
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

.site-title a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-base);
}

.site-title a:hover,
.site-title a:focus {
    color: var(--blue-invest-accent);
}

.site-description {
    font-size: var(--font-size-small);
    color: var(--blue-invest-accent);
    margin-top: 0.25rem;
    margin-bottom: 0;
    line-height: var(--line-height-base);
}

/* =============================================================================
   Main Navigation
   ============================================================================= */

.main-navigation {
    position: relative;
    display: flex;
    align-items: center;
}

/* Desktop Menu */
.desktop-menu {
    display: flex;
}

.desktop-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.desktop-menu li {
    position: relative;
    margin: 0;
}

.desktop-menu a {
    color: var(--text-light);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 0;
    position: relative;
    transition: color var(--transition-base);
    text-decoration: none;
    display: flex;
    align-items: center;
    font-size: var(--font-size-body);
}

.desktop-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--blue-invest-accent);
    transition: width var(--transition-base);
}

.desktop-menu a:hover,
.desktop-menu a:focus {
    color: var(--blue-invest-accent);
}

.desktop-menu a:hover::after,
.desktop-menu a:focus::after,
.desktop-menu a.current::after,
.desktop-menu li.current-menu-item > a::after,
.desktop-menu li.current_page_item > a::after {
    width: 100%;
}

.desktop-menu a:focus-visible {
    outline: 2px solid var(--blue-invest-accent);
    outline-offset: 4px;
    border-radius: var(--radius-small);
}

/* Active/Current Menu Items */
.main-navigation a.active,
.main-navigation li.active > a,
.main-navigation li.current-menu-item > a,
.main-navigation li.current_page_item > a {
    color: var(--blue-invest-accent);
}

/* =============================================================================
   Mobile Navigation
   ============================================================================= */

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 2.5rem;
    height: 2.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: var(--z-modal);
    position: relative;
}

.hamburger-line {
    width: 1.5rem;
    height: 2px;
    background-color: var(--text-light);
    transition: all var(--transition-base);
    border-radius: 1px;
}

.hamburger-line:not(:last-child) {
    margin-bottom: 4px;
}

/* Hamburger animation when open */
.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(13, 44, 79, 0.95);
    backdrop-filter: blur(10px);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    text-align: center;
    max-width: 90%;
}

.mobile-menu-overlay ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-menu-overlay li {
    margin: 0;
}

.mobile-menu-overlay a {
    color: var(--text-light);
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    padding: 1rem;
    display: block;
    transition: all var(--transition-base);
    border-radius: var(--radius-medium);
}

.mobile-menu-overlay a:hover,
.mobile-menu-overlay a:focus {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--blue-invest-accent);
    transform: translateY(-2px);
}

.mobile-menu-overlay a:focus-visible {
    outline: 2px solid var(--blue-invest-accent);
    outline-offset: 2px;
}

/* =============================================================================
   Homepage Header Variants
   ============================================================================= */

/* Transparent header for homepage */
body.page-template-template-home .site-header {
    background-color: transparent;
    padding: 2rem 0;
}

body.page-template-template-home .site-header.scrolled {
    background-color: var(--blue-invest-dark);
    padding: 1rem 0;
}

body.page-template-template-home {
    padding-top: 0;
}

body.page-template-template-home .site-header .site-title a,
body.page-template-template-home .desktop-menu a {
    color: var(--text-light);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

body.page-template-template-home .desktop-menu a::after {
    background-color: var(--blue-invest-accent);
}

body.page-template-template-home .site-header.scrolled .site-title a,
body.page-template-template-home .site-header.scrolled .desktop-menu a {
    color: var(--text-light);
    text-shadow: none;
}

/* =============================================================================
   Responsive Design
   ============================================================================= */

@media (max-width: 1024px) {
    .site-header .container {
        gap: 1.5rem;
    }

    .desktop-menu ul {
        gap: 1.5rem;
    }

    .site-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    /* Hide desktop menu on mobile */
    .desktop-menu {
        display: none;
    }

    /* Show mobile menu toggle */
    .mobile-menu-toggle {
        display: flex;
    }

    .site-header .container {
        flex-direction: row;
        gap: 1rem;
        align-items: center;
    }

    .site-title {
        font-size: 1.25rem;
    }

    .site-logo-img {
        max-height: 50px;
    }

    .site-header.scrolled .site-logo-img {
        max-height: 40px;
    }

    .brand-container.position-above,
    .brand-container.position-below {
        flex-direction: row;
        align-items: center;
        gap: 0.75rem;
    }

    /* Remove underline effects on mobile for active items */
    .main-navigation a.active::after,
    .main-navigation li.active > a::after,
    .main-navigation li.current-menu-item > a::after,
    .main-navigation li.current_page_item > a::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .site-header .container {
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }

    .site-title {
        font-size: 1.125rem;
    }

    .site-description {
        font-size: 0.75rem;
    }

    .mobile-menu-overlay a {
        font-size: 1.25rem;
        padding: 0.875rem;
    }

    .site-logo-img {
        max-height: 40px;
    }

    .site-header.scrolled .site-logo-img {
        max-height: 35px;
    }
}

/* =============================================================================
   High Contrast and Accessibility
   ============================================================================= */

@media (prefers-contrast: high) {
    .site-header {
        border-bottom: 2px solid var(--blue-invest-accent);
    }

    .desktop-menu a::after {
        height: 3px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-header,
    .site-logo-img,
    .desktop-menu a,
    .hamburger-line,
    .mobile-menu-overlay {
        transition: none;
    }

    .mobile-menu-toggle[aria-expanded="true"] .hamburger-line {
        transition: none;
    }
}

/* Focus management for mobile menu */
.mobile-menu-overlay.active {
    /* Trap focus within mobile menu when open */
}

/* Ensure mobile menu is accessible */
@media (max-width: 768px) {
    .mobile-menu-toggle:focus-visible {
        outline: 2px solid var(--blue-invest-accent);
        outline-offset: 2px;
        border-radius: var(--radius-small);
    }
}