/* ── Nav ── */
.sticky-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  transition: transform 300ms ease;
}

.sticky-nav.nav-hidden {
  transform: translateY(-100%);
}

.nav-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--container-px);
}

.nav-wordmark {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-icon, .footer-icon {
  display: inline-block;
  vertical-align: middle;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-muted);
  transition: color 200ms;
}
.nav-link:hover { color: var(--text); }

/* ── Primary Button ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--text);
  color: var(--bg);
  border-radius: 6px;
  padding: 10px 24px;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: opacity 200ms;
}
.btn-primary:hover { opacity: 0.85; }
.btn-primary:active { opacity: 0.7; }

.btn-nav {
  padding: 7px 16px;
  font-size: 0.75rem;
}

/* ── Ghost Button ── */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 24px;
  font-size: 0.8125rem;
  font-weight: 400;
  transition: border-color 200ms, color 200ms;
}
.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--container-px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-wordmark {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-faint);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--text-faint);
  transition: color 200ms;
}
.footer-links a:hover { color: var(--text-muted); }

.footer-legal {
  font-size: 0.75rem;
  color: var(--text-faint);
}

@media (max-width: 639px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}