.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-h);
  background: rgba(6, 5, 8, 0.82);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(18px);
}

.site-header__inner,
.site-footer__inner {
  width: min(var(--max-page), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand-mark {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.site-nav a {
  padding: 0.55rem 0.25rem;
  text-decoration: none;
  color: var(--color-muted);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: transparent;
  color: var(--color-text);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.page {
  width: min(var(--max-page), calc(100% - 2rem));
  margin: 0 auto;
  padding: 4rem 0;
}

.page--narrow {
  max-width: 840px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 2rem;
  align-items: center;
  min-height: calc(100vh - var(--header-h) - 4rem);
  padding: 2rem 0;
}

.hero--portfolio {
  grid-template-columns: 1fr;
  min-height: auto;
}

.hero__content,
.panel,
.text-block,
.feature-card,
.product-card,
.media-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.hero__content {
  padding: clamp(1.5rem, 4vw, 3rem);
}

.hero__media img,
.hero__image-button {
  display: block;
  width: 100%;
  border: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #050509;
}

.section,
.page-head,
.text-block,
.panel {
  margin: 2rem 0;
}

.section__head,
.page-head {
  max-width: 780px;
}

.site-footer {
  padding: 3rem 0;
}

.site-footer__rule {
  height: 1px;
  background: var(--color-line);
  margin-bottom: 1rem;
}

.site-footer__text {
  color: var(--color-muted);
  font-size: 0.85rem;
}