/* ==========================================================================
   Main Navigation - Glassmorphism Header (overlays hero)
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.main-nav {
    background: rgba(var(--header-glass-rgb, 255, 255, 255), var(--header-glass-opacity, 0.2));
    -webkit-backdrop-filter: blur(var(--header-glass-blur, 10px));
    backdrop-filter: blur(var(--header-glass-blur, 10px));
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0;
    transition: all var(--transition-normal);
}

/* When scrolled past the hero, make header more opaque */
.site-header.scrolled .main-nav {
    background: rgba(var(--header-scrolled-bg-rgb, 255, 255, 255), 0.92);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-md);
    border-bottom-color: rgba(0, 0, 0, 0.08);
}

/* On hero: text color from Customizer. When scrolled: dark from Customizer */
.site-header .nav-menu > li > a,
.site-header .site-title {
    color: var(--header-link-color, #ffffff);
    transition: color var(--transition-normal);
}

.site-header.scrolled .nav-menu > li > a,
.site-header.scrolled .site-title {
    color: var(--header-scrolled-link-color, #1a1a2e);
}

.site-header .nav-menu > li > a:hover,
.site-header .nav-menu > li.current-menu-item > a {
    color: var(--header-link-hover-color, rgba(255, 255, 255, 0.7));
}

.site-header.scrolled .nav-menu > li > a:hover,
.site-header.scrolled .nav-menu > li.current-menu-item > a {
    color: var(--header-scrolled-link-hover-color, #0078D4);
}

/* Dropdown arrow color */
.site-header .dropdown-arrow {
    color: var(--header-link-hover-color, rgba(255, 255, 255, 0.7));
}

.site-header.scrolled .dropdown-arrow {
    color: var(--header-scrolled-link-color, #1a1a2e);
}

/* Hamburger lines on hero = link color, scrolled = scrolled link color */
.site-header .hamburger-line {
    background-color: var(--header-link-color, #ffffff);
    transition: all var(--transition-normal);
}

.site-header.scrolled .hamburger-line {
    background-color: var(--header-scrolled-link-color, #1a1a2e);
}

/* No body padding since header overlays hero */
body {
    padding-top: 0;
}

body.admin-bar .site-header {
    top: 32px;
}

/* Pages without hero need padding */
body.page:not(.home):not(.page-template-template-contact):not(.page-template-template-about) {
    padding-top: 80px;
}

body.single:not(.single-galeria) {
    padding-top: 80px;
}

body.archive:not(.post-type-archive-evento):not(.post-type-archive-galeria) {
    padding-top: 80px;
}

body.error404 {
    padding-top: 80px;
}

body.search {
    padding-top: 80px;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Logo - Positionable via CSS vars */
.nav-logo {
    flex-shrink: 0;
    margin-top: var(--logo-margin-top, 0px);
    margin-left: var(--logo-margin-left, 0px);
}

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

.nav-logo img {
    max-height: var(--logo-max-height, 60px);
    width: auto;
    max-width: 230px;
    transition: all var(--transition-normal);
}

/* Logo filter: on hero = bright (white), scrolled = normal */
.site-header .nav-logo img {
    filter: brightness(0) invert(1);
}

.site-header.scrolled .nav-logo img {
    filter: none;
}

.site-title-link {
    text-decoration: none;
}

.site-title {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 700;
}

/* Menu */
.nav-menu-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    transition: color var(--transition-fast);
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 14px;
    right: 14px;
    height: 2px;
    background-color: var(--header-link-color, #ffffff);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.site-header.scrolled .nav-menu > li > a::after {
    background-color: var(--header-scrolled-link-hover-color, #0078D4);
}

.nav-menu > li > a:hover::after,
.nav-menu > li.current-menu-item > a::after {
    transform: scaleX(1);
}

.dropdown-arrow {
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.nav-menu > li:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* Dropdown / Sub-menu */
.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-white);
    min-width: 200px;
    box-shadow: var(--shadow-md);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    list-style: none;
    padding: 8px 0;
    z-index: 100;
}

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

.sub-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: var(--color-text-dark);
    transition: all var(--transition-fast);
}

.sub-menu li a:hover {
    background-color: var(--color-bg-light);
    color: var(--color-primary-blue);
    padding-left: 24px;
}

/* CTA Button in Nav - Customizable via CSS vars */
/* .btn.nav-cta for higher specificity over .btn base styles */
.btn.nav-cta {
    padding: var(--cta-btn-padding, 10px 24px);
    font-size: var(--cta-btn-font-size, 13px);
    border-radius: var(--cta-btn-radius, 4px);
    white-space: nowrap;
    background-color: var(--header-cta-bg-color, #E63946);
    color: var(--header-cta-text-color, #ffffff);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.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: translateY(-7px) rotate(-45deg);
}

/* Page Header Bar (for non-hero pages) */
.page-header-bar {
    background-color: var(--color-blue-dark);
    padding: 100px 0 40px;
    margin-top: 0;
}

.page-header-bar .page-title {
    color: var(--color-white);
    font-size: 36px;
    margin: 0;
}

.page-header-bar .post-meta {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
    font-size: 14px;
}