/* ===========================================
   Header Component
   =========================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    transition: box-shadow 0.2s ease;
}

.site-header.scrolled {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Transparent Header (for hero sections) */
.site-header--transparent {
    position: absolute;
    width: 100%;
}

.site-header--transparent .navbar {
    background-color: rgba(var(--header-bg-rgb, 255, 255, 255), var(--navbar-opacity, 0)) !important;
    backdrop-filter: blur(var(--navbar-blur, 0));
    -webkit-backdrop-filter: blur(var(--navbar-blur, 0));
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header--transparent .header-topbar {
    background-color: rgba(var(--topbar-bg-rgb, 33, 37, 41), var(--topbar-opacity, 0)) !important;
    backdrop-filter: blur(var(--topbar-blur, 0));
    -webkit-backdrop-filter: blur(var(--topbar-blur, 0));
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header--transparent.scrolled {
    position: fixed;
}

/* Text color transitions for smooth scrolling effect */
.site-header .nav-link,
.site-header .navbar-brand {
    transition: color 0.3s ease;
}

.site-header .navbar-toggler {
    border: none !important;
}

.site-header .navbar-toggler-icon {
    transition: filter 0.3s ease;
    filter: var(--toggler-filter, none);
}

/* Logo */
.header-logo {
    max-height: 40px;
    width: auto;
}

/* Nav Links */
.site-header .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    position: relative;
    transition: color 0.2s ease, font-weight 0.2s ease;
}

/* Pseudo-element for underline effect */
.site-header .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--nav-hover-underline-color, var(--bs-primary));
    transform: translateX(-50%);
    transition: width 0.25s ease;
}

/* Default hover (no effect class = primary color) */
.site-header .nav-link:hover {
    color: var(--bs-primary);
}

.site-header .nav-link.active {
    color: var(--bs-primary);
}

/* ===========================================
   Navigation Hover Effects
   =========================================== */

/* Hover Effect: Underline */
.site-header.nav-hover-underline .nav-link:hover {
    color: var(--nav-hover-color, inherit);
}
.site-header.nav-hover-underline .nav-link:hover::after {
    width: 80%;
}

/* Hover Effect: Color only */
.site-header.nav-hover-color .nav-link::after {
    display: none;
}
.site-header.nav-hover-color .nav-link:hover {
    color: var(--nav-hover-color, var(--bs-primary)) !important;
}

/* Hover Effect: Bold */
.site-header.nav-hover-bold .nav-link::after {
    display: none;
}
.site-header.nav-hover-bold .nav-link:hover {
    font-weight: 700;
}

/* Hover Effect: Color + Underline */
.site-header.nav-hover-color-underline .nav-link:hover {
    color: var(--nav-hover-color, var(--bs-primary)) !important;
}
.site-header.nav-hover-color-underline .nav-link:hover::after {
    width: 80%;
}

/* Hover Effect: Color + Bold */
.site-header.nav-hover-color-bold .nav-link::after {
    display: none;
}
.site-header.nav-hover-color-bold .nav-link:hover {
    color: var(--nav-hover-color, var(--bs-primary)) !important;
    font-weight: 700;
}

/* Hover Effect: None */
.site-header.nav-hover-none .nav-link::after {
    display: none;
}
.site-header.nav-hover-none .nav-link:hover {
    color: inherit !important;
}

/* Mobile Menu */
@media (max-width: 991.98px) {
    .site-header .navbar-collapse {
        background-color: var(--burger-menu-bg, #fff);
        padding: 1rem;
        margin-top: 0.5rem;
        border-radius: 0.5rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .site-header--transparent:not(.scrolled) .navbar-collapse {
        background-color: var(--burger-menu-bg, #fff);
    }

    .site-header--transparent:not(.scrolled) .navbar-collapse .nav-link {
        color: var(--header-text-color, #212529) !important;
    }
}