/* ═══════════════════════════════════════════════
   IMPERIUM TECHS — HEADER, NAV & FOOTER
══════════════════════════════════════════════════ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(8, 8, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition-smooth);
}

.site-header.scrolled {
    background: rgba(8, 8, 10, 0.95);
    border-bottom-color: var(--border-active);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 0 8px var(--ultraviolet-glow));
}

.brand-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.brand-accent {
    color: var(--ultraviolet);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.hud-line {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
    position: relative;
}

.nav-toggle.active .hud-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hud-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .hud-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--space-md);
    align-items: center;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-decoration: none;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition-fast);
    text-transform: uppercase;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--ultraviolet);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--ultraviolet);
    color: var(--ultraviolet);
    transition: var(--transition-fast);
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--ultraviolet);
    color: #fff;
    box-shadow: 0 0 20px var(--ultraviolet-glow);
}

/* ─── FOOTER ─── */
.site-footer {
    background: var(--obsidian);
    border-top: 1px solid var(--border-subtle);
    padding: var(--space-lg) 0 var(--space-md);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-brand .brand-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.footer-heading {
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-col a:hover {
    color: var(--ultraviolet);
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-md) 0;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-secure {
    color: var(--cyan);
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    margin-left: var(--space-sm);
}