/* Shared components: nav, footer */

/* Nav */
#mainNav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--nav-pad, 1.5rem 4rem);
  background: var(--nav-bg, rgba(250,248,251,0.88));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
  transition: padding 0.4s;
}

#mainNav.scrolled {
  padding: var(--nav-pad-scrolled, 1rem 4rem);
}

.nav-logo {
  font-family: var(--serif);
  font-size: var(--nav-logo-size, 1.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo span,
.nav-dot,
.nav-logo-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-link {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--accent);
}

.nav-back {
  font-family: var(--mono);
  font-size: var(--nav-back-size, 0.75rem);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s;
}

.nav-back:hover {
  color: var(--accent);
}

.nav-back svg {
  transition: transform 0.2s;
}

/* Footer */
footer {
  background: var(--footer-bg, var(--ink));
  padding: var(--footer-pad, 2.5rem 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-logo {
  font-family: var(--serif);
  font-size: var(--footer-logo-size, 1rem);
  font-weight: 700;
  color: white;
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: var(--footer-link-size, 0.78rem);
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-copy {
  font-family: var(--mono);
  font-size: var(--footer-copy-size, 0.7rem);
  color: rgba(255,255,255,0.22);
}