main {
  flex: 1 0 auto;
  padding-block: var(--space-7) var(--space-8);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(244, 241, 234, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.01em;
}

.brand:hover {
  text-decoration: none;
}

.brand__mark {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--ink);
}

.brand__mark span {
  display: block;
}

.brand__mark span:nth-child(1) {
  background: #efe6d4;
}

.brand__mark span:nth-child(2) {
  background: var(--sage);
}

.brand__mark span:nth-child(3) {
  background: var(--sage);
}

.brand__mark span:nth-child(4) {
  background: #efe6d4;
}

.brand__name {
  font-weight: 600;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
}

.site-nav__list a[aria-current="page"] {
  color: var(--sage-strong);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--line);
  padding-block: var(--space-5);
  padding-bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.nav-toggle {
  display: none;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .site-header__inner {
    flex-wrap: nowrap;
    min-height: 60px;
    padding-block: var(--space-2);
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 30;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-2) var(--space-4) var(--space-4);
    border: 1px solid var(--line);
    border-top: 0;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    background: var(--surface);
    box-shadow: var(--shadow-md);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0;
  }

  .site-nav__list li {
    border-bottom: 1px solid var(--line);
  }

  .site-nav__list a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0 var(--space-2);
    font-size: 1rem;
  }

  .site-nav__actions {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
    padding-top: var(--space-3);
  }

  main {
    padding-block: var(--space-6) var(--space-7);
  }
}

.account-link {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
  color: var(--ink);
}

.account-link:hover {
  text-decoration: none;
}

.account-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.account-elo {
  color: var(--ink-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
}

.account-message {
  max-width: 220px;
  font-size: 0.78rem;
}

.button--small {
  min-height: 36px;
  padding-inline: var(--space-3);
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .site-nav__actions {
    margin-left: auto;
  }

  .account-link {
    align-items: flex-start;
  }
}

@media (max-width: 900px) {
  .segmented button,
  .button--small {
    min-height: 44px;
  }
}