.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 246, 243, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-5);
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-ink);
}

.brand__logo {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.brand__name {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.16em;
}

.nav {
  justify-self: end;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__link {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: background-color var(--transition), color var(--transition);
}

.nav__link:hover {
  background: var(--color-surface-alt);
  color: var(--color-ink);
}

.nav__link--active {
  background: var(--color-ink);
  color: var(--color-inverse);
}

.nav__link--active:hover {
  background: var(--color-accent-strong);
  color: var(--color-inverse);
}

.nav__head,
.nav__contact {
  display: none;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
}

.nav-toggle .icon,
.nav__close .icon {
  width: 24px;
  height: 24px;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(29, 29, 27, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.nav-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 880px) {
  .site-header__inner {
    grid-template-columns: 1fr auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    display: flex;
    flex-direction: column;
    width: min(86vw, 360px);
    padding: var(--space-5);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--transition), visibility var(--transition);
    overflow-y: auto;
  }

  .nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    font-weight: 600;
    letter-spacing: 0.16em;
    color: var(--color-ink);
  }

  .nav__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-ink);
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .nav__link {
    display: block;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    font-size: 1.0625rem;
  }

  .nav__contact {
    display: block;
    margin-top: auto;
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-line);
    font-size: 0.9375rem;
    color: var(--color-muted);
  }

  .nav__contact a {
    display: block;
    color: var(--color-ink);
    text-decoration: none;
    padding: var(--space-1) 0;
  }
}

.section {
  padding-block: var(--space-9);
}

.section--tight {
  padding-block: var(--space-8);
}

.section--alt {
  background: var(--color-surface-alt);
}

.section--dark {
  background: var(--color-ink);
  color: #d8d6d0;
}

.section--dark h2,
.section--dark h3 {
  color: var(--color-inverse);
}

.section__header {
  max-width: 760px;
  margin-bottom: var(--space-7);
}

.section__header--center {
  margin-inline: auto;
  text-align: center;
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.split--reverse > :first-child {
  order: 2;
}

.split--top {
  align-items: start;
}

.content-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 880px) {
  .split,
  .content-layout {
    grid-template-columns: 1fr;
  }

  .split--reverse > :first-child {
    order: 0;
  }
}

@media (max-width: 640px) {
  .section {
    padding-block: var(--space-8);
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

.site-footer {
  background: var(--color-accent-strong);
  color: #c9c6be;
  padding-block: var(--space-8) var(--space-5);
  font-size: 0.9375rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__col h2 {
  margin-bottom: var(--space-4);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-inverse);
}

.site-footer .brand {
  color: var(--color-inverse);
  margin-bottom: var(--space-4);
}

.site-footer a {
  color: #e6e3dc;
  text-decoration: none;
}

.site-footer a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.site-footer__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer__list li + li {
  margin-top: var(--space-2);
}

.site-footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.site-footer__contact .icon {
  width: 20px;
  height: 20px;
  margin-top: 0.2rem;
  flex-shrink: 0;
  color: #b8b4aa;
}

.site-footer__link-button {
  padding: 0;
  border: 0;
  background: none;
  color: #e6e3dc;
  text-align: left;
}

.site-footer__link-button:hover {
  color: #ffffff;
  text-decoration: underline;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-5);
  font-size: 0.875rem;
  color: #a19d94;
}

@media (max-width: 880px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__col--brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}