/* =========================================
   HEADER / NAVIGATION STYLES
   ========================================= */

.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--site-header-height);
    z-index: 1000;
    background: rgba(2,33,46,0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: background 0.3s;
}

.site-header.scrolled { background: rgba(2,33,46,0.97); }

.header-inner {
    height: var(--site-header-height);
    padding: 0 20px;
}

@media (min-width: 992px) { .header-inner { padding: 0 40px; } }

.header-logo-wrap { display: flex; align-items: center; }
.header-logo { display: flex; align-items: center; height: 100%; }
.logo-light { display: block; }
.logo-dark { display: none; }

/* Nav */
.main-nav { flex: 1; justify-content: center; }
.nav-list {
    display: flex;
    list-style: none;
    margin: 0; padding: 0;
    gap: 0.25rem;
}

.nav-link {
    color: rgba(255,255,255,0.85);
    padding: 1.6rem 1rem;
    font-size: 1rem;
    font-weight: 400;
    border-bottom: 3px solid transparent;
    display: block;
    text-decoration: none;
    transition: all 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: #fff;
    border-bottom-color: var(--accent);
}

.career-link .nav-link {
    background: var(--secondary);
    color: #fff;
    padding: 0.6rem 1.4rem;
    border-radius: 50px;
    border-bottom: none;
}
.career-link .nav-link:hover { background: #7a08c7; }

/* Search */
.header-search { position: relative; }
.search-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.2rem;
    width: 46px; height: 46px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.search-btn:hover { background: rgba(255,255,255,0.1); }

.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(2,33,46,0.97);
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

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

.search-overlay-inner { width: 90%; max-width: 700px; }

.search-form-overlay {
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 1rem;
}

.search-input-overlay {
    flex: 1;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.8rem;
    outline: none;
    font-family: var(--font);
}
.search-input-overlay::placeholder { color: rgba(255,255,255,0.4); }

.search-submit-btn, .search-close-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.5rem;
}
.search-close-btn:hover { color: var(--accent-green); }

/* Hamburger */
.menu-toggle-wrap { display: block; }
@media (min-width: 1200px) { .menu-toggle-wrap { display: none; } }

.hamburger {
    padding: 10px;
    background: transparent;
    border: 0;
    cursor: pointer;
}
.hamburger-box { width: 26px; height: 18px; display: block; position: relative; }
.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
    width: 26px; height: 2px;
    background: #fff;
    position: absolute;
    left: 0;
    transition: all 0.15s ease;
}
.hamburger-inner { top: 50%; margin-top: -1px; }
.hamburger-inner::before { content: ''; top: -8px; }
.hamburger-inner::after { content: ''; top: 8px; }

.hamburger.is-active .hamburger-inner { transform: rotate(45deg); }
.hamburger.is-active .hamburger-inner::before { top: 0; opacity: 0; }
.hamburger.is-active .hamburger-inner::after { top: 0; transform: rotate(-90deg); }

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 0; right: -320px;
    width: 300px; height: 100%;
    background: var(--primary);
    z-index: 1200;
    transition: right 0.35s ease;
    overflow-y: auto;
    padding: 100px 30px 40px;
}
.mobile-menu.active { right: 0; }

.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1150;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.mobile-menu-overlay.active { opacity: 1; visibility: visible; }

.mobile-nav-list { list-style: none; padding: 0; margin: 0; }
.mobile-nav-list li { margin-bottom: 1.2rem; }
.mobile-nav-list a {
    color: #fff;
    font-size: 1.2rem;
    font-weight: 500;
    text-decoration: none;
}
.mobile-nav-list a:hover { color: var(--accent-green); }

.mobile-cat-link {
    display: block;
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
    padding: 6px 0;
    text-decoration: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-cat-link:hover { color: var(--accent-green); }

body.mobile-menu-open { overflow: hidden; }