/* ===================================================================
   Global Header Master UI Design System
   Scoped to: .gh-site-header
   Animation: Light Sweep / Floating Rectangles
   =================================================================== */

/* ===================================================================
   Variables & Theme
   =================================================================== */
:root {
    /* Map to existing Skin-1.css colors */
    --gh-primary: #29afe3;
    --gh-secondary: #004685;

    /* Header Specifics */
    --gh-bg-light: #ffffff;
    --gh-bg-dark: #0b1117;

    --gh-text-light: #0f2034;
    --gh-text-dark: #f0f6fc;

    --gh-border-light: rgba(0, 0, 0, 0.08);
    --gh-border-dark: rgba(255, 255, 255, 0.1);

    --gh-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --gh-height-desktop: 80px;
    --gh-height-mobile: 60px;

    /* Animation */
    --gh-anim-spline: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --gh-bg-light: var(--gh-bg-dark);
    --gh-text-light: var(--gh-text-dark);
    --gh-border-light: var(--gh-border-dark);
    --gh-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* ===================================================================
   Base Structure
   =================================================================== */
.gh-site-header {
    position: sticky;
    top: 0;
    z-index: 9999;
    background: var(--gh-bg-light);
    box-shadow: var(--gh-shadow);
    transition: background 0.3s ease, padding 0.3s ease;
    width: 100%;
}

.gh-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: var(--gh-height-desktop);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

/* Background Animation Container */
.gh-bg-anim {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

/* Unique Animation: Light Sweep */
.gh-bg-anim::before {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(41, 175, 227, 0.03) 40%,
            rgba(41, 175, 227, 0.08) 50%,
            rgba(41, 175, 227, 0.03) 60%,
            transparent 100%);
    transform: skewX(-20deg);
    animation: gh-sweep 15s infinite linear;
}

@keyframes gh-sweep {
    0% {
        transform: translateX(-50%) skewX(-20deg);
    }

    100% {
        transform: translateX(25%) skewX(-20deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .gh-bg-anim::before {
        animation: none;
        opacity: 0.05;
        background: var(--gh-primary);
    }
}

/* ===================================================================
   Logo
   =================================================================== */
.gh-logo {
    display: flex;
    align-items: center;
    height: 100%;
    z-index: 10;
}

.gh-logo img {
    height: 42px;
    width: auto;
    transition: all 0.3s;
}

/* ===================================================================
   Desktop Navigation
   =================================================================== */
.gh-nav-desktop {
    display: none;
    /* Mobile first hidden */
    height: 100%;
}

.gh-nav-list {
    display: flex;
    align-items: center;
    gap: 5px;
    height: 100%;
    list-style: none;
    margin: 0;
    padding: 0;
}

.gh-nav-item {
    height: 100%;
    display: flex;
    align-items: center;
    position: relative;
}

.gh-nav-link {
    display: flex;
    align-items: center;
    padding: 0 15px;
    height: 60%;
    /* Clickable area */
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gh-text-light);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.gh-nav-link:hover,
.gh-nav-link:focus,
.gh-nav-item.active .gh-nav-link {
    color: var(--gh-primary);
    background: rgba(41, 175, 227, 0.05);
}

/* Desktop Dropdown */
.gh-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--gh-bg-light);
    min-width: 260px;
    box-shadow: var(--gh-shadow);
    border-top: 2px solid var(--gh-primary);
    border-radius: 0 0 8px 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s var(--gh-anim-spline);
    padding: 10px 0;
    z-index: 100;
}

.gh-nav-item:hover .gh-dropdown,
.gh-nav-item:focus-within .gh-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.gh-dropdown-link {
    display: block;
    padding: 10px 20px;
    font-size: 0.9rem;
    color: var(--gh-text-light);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 2px solid transparent;
}

.gh-dropdown-link:hover {
    background: rgba(41, 175, 227, 0.03);
    color: var(--gh-primary);
    border-left-color: var(--gh-primary);
    padding-left: 25px;
}

@media (min-width: 992px) {
    .gh-nav-desktop {
        display: block;
    }
}

/* ===================================================================
   Mobile Navigation
   =================================================================== */
.gh-mobile-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
    /* Above menu */
    padding: 0;
}

.gh-bar {
    width: 100%;
    height: 2px;
    background: var(--gh-text-light);
    transition: all 0.3s ease;
}

/* Mobile Toggler Active State */
.gh-mobile-toggle.active .gh-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.gh-mobile-toggle.active .gh-bar:nth-child(2) {
    opacity: 0;
}

.gh-mobile-toggle.active .gh-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.gh-mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    background: var(--gh-bg-light);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    transform: translateX(100%);
    transition: transform 0.3s var(--gh-anim-spline);
    z-index: 100;
    padding: 80px 20px 20px;
    /* Top padding cleared for toggle */
    overflow-y: auto;
}

.gh-mobile-menu.active {
    transform: translateX(0);
}

.gh-mobile-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.gh-mobile-item {
    border-bottom: 1px solid var(--gh-border-light);
}

.gh-mobile-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gh-text-light);
    text-decoration: none;
    width: 100%;
    background: none;
    border: none;
    text-align: left;
}

.gh-mobile-link:hover {
    color: var(--gh-primary);
}

.gh-submenu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gh-border-light);
    border-radius: 50%;
    background: transparent;
    transition: all 0.2s;
}

.gh-submenu-toggle.active {
    background: var(--gh-primary);
    color: #fff;
    transform: rotate(180deg);
}

.gh-mobile-submenu {
    display: none;
    padding-left: 15px;
    background: rgba(0, 0, 0, 0.02);
    margin-bottom: 10px;
    border-radius: 8px;
}

.gh-mobile-submenu-link {
    display: block;
    padding: 12px 0;
    font-size: 0.9rem;
    color: var(--gh-text-light);
    text-decoration: none;
}

/* Overlay */
.gh-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    backdrop-filter: blur(2px);
}

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

@media (min-width: 992px) {

    .gh-mobile-toggle,
    .gh-mobile-menu,
    .gh-overlay {
        display: none;
    }
}

/* ===================================================================
   Actions (Right Side)
   =================================================================== */
.gh-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.gh-action-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--gh-border-light);
    background: transparent;
    color: var(--gh-text-light);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.gh-action-btn:hover {
    border-color: var(--gh-primary);
    color: var(--gh-primary);
    box-shadow: 0 4px 10px rgba(41, 175, 227, 0.2);
}

/* Dark Mode Toggle Checkbox Hidden Logic (Reuse existing if needed, or implement fresh) */
/* Assuming usage of simple JS to click existing toggle or just new button */