/* ===== HEADER ===== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  background: color-mix(in srgb, var(--c-black) 82%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.18em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.25rem);
}

.site-nav a {
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  transition: color 0.3s var(--ease);
}
.site-nav a:hover,
.site-nav a.nav-cta {
  color: var(--c-white);
}

/* Бургер (мобайл — доделаем на Этапе 5) */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  width: 26px;
  height: 2px;
  background: var(--c-white);
}

/* ===== FOOTER ===== */
.site-footer {
  padding-block: var(--space-4);
  border-top: 1px solid var(--c-line);
  text-align: center;
  color: var(--c-text-muted);
  font-size: var(--fs-micro);
}