/* ── Navigation ── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--content-pad);
  height: var(--nav-height);
  background: rgba(5, 5, 5, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* Brand */
.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--s3);
  text-decoration: none;
}

.nav-logo {
  width: 53px;
  height: 53px;
  object-fit: contain;
}

.nav-wordmark {
  display: flex;
  flex-direction: column;
}

.nav-name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: var(--text-md);
  color: var(--white);
  letter-spacing: 6px;
  line-height: 1;
}

.nav-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--grey);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-top: 2px;
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--s7);
}

.nav-link {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--grey);
  transition: color var(--duration);
  cursor: pointer;
}

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

/* Products dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: -16px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  min-width: 180px;
  padding: var(--s2) 0;
  padding-top: calc(var(--s2) + 12px);
  z-index: 101;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-item {
  display: block;
  padding: var(--s3) var(--s5);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--grey);
  transition: color var(--duration), background var(--duration);
}

.nav-dropdown-item:hover {
  color: var(--white);
  background: var(--surface);
}

/* CTA */
.nav-cta {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--blue);
  background: #1a1a1a;
  border: none;
  padding: 8px 20px;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.5), 0 0 1px rgba(255,255,255,0.05);
  transition: background var(--duration), box-shadow var(--duration);
}

.nav-cta:hover {
  background: #222;
  box-shadow: 0 4px 14px rgba(0,0,0,0.6), 0 0 1px rgba(255,255,255,0.08);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 24px;
  cursor: pointer;
  padding: var(--s1);
  line-height: 1;
}

/* Mobile overlay */
.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--black);
  flex-direction: column;
  padding: var(--s9) var(--content-pad) var(--s7);
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile-close {
  position: absolute;
  top: var(--s4);
  right: var(--content-pad);
  background: none;
  border: none;
  color: var(--white);
  font-size: 28px;
  cursor: pointer;
}

.nav-mobile-link {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: var(--grey);
  padding: var(--s4) 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--duration);
}

.nav-mobile-link:hover {
  color: var(--white);
}

.nav-mobile-cta {
  margin-top: auto;
  display: block;
  text-align: center;
  background: #1a1a1a;
  color: var(--blue);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--s4);
  border: none;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.5), 0 0 1px rgba(255,255,255,0.05);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  background: #111;
  border-radius: 4px;
  padding: 2px;
}
.lang-toggle button {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.5px;
  color: #555;
  background: none;
  border: none;
  padding: 4px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.lang-toggle button.active {
  color: #ddd;
  background: #222;
}
.lang-toggle button:hover:not(.active) {
  color: #999;
}