.button {
  display: inline-flex;
  min-width: 2.75rem;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-2);
  font-size: var(--text-compact);
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.button--compact {
  padding-inline: var(--space-4);
}

.button--primary {
  background: var(--color-brand);
  color: var(--color-inverse-text);
}

.button--primary:hover {
  background: var(--color-brand-hover);
  color: var(--color-inverse-text);
}

.button--primary:active {
  background: var(--color-brand-active);
  color: var(--color-inverse-text);
}

.button--secondary {
  border-color: var(--color-brand);
  background: transparent;
  color: var(--color-brand);
}

.button--secondary:hover {
  border-color: var(--color-brand-hover);
  background: var(--color-brand-soft);
  color: var(--color-brand-hover);
}

.button--secondary:active {
  border-color: var(--color-brand-active);
  background: var(--color-brand-soft);
  color: var(--color-brand-active);
}

.button[aria-disabled="true"],
.button:disabled {
  border-color: var(--color-border);
  background: var(--color-surface-secondary);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.button[aria-busy="true"] {
  cursor: progress;
}

.text-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: var(--space-1);
  font-weight: 600;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: var(--border-subtle);
  background: var(--color-canvas);
}

.site-header__inner {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.site-nav__toggle {
  display: none;
}

.wordmark {
  display: inline-flex;
  min-height: 2.75rem;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
}

.wordmark:hover {
  color: var(--color-brand);
}

.wordmark__mark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: var(--radius-2);
  background: var(--color-brand);
  color: var(--color-inverse-text);
  font-size: var(--text-label);
  letter-spacing: -0.02em;
}

.site-nav__list,
.site-footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
}

.site-nav__mobile-only {
  display: none;
}

.site-nav a:not(.button) {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: var(--space-2);
  padding-inline: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--text-compact);
  font-weight: 500;
  text-decoration: none;
}

.site-nav a:not(.button):hover {
  color: var(--color-brand);
}

.site-nav a:not(.button):active {
  color: var(--color-brand-active);
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
}

.badge {
  display: inline-flex;
  min-height: 2rem;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border: var(--border-standard);
  border-radius: var(--radius-pill);
  background: var(--color-brand-soft);
  color: var(--color-brand-active);
  font-size: var(--text-label);
  font-weight: 600;
  line-height: 1.3;
}

.badge--neutral {
  border-color: var(--color-border);
  background: var(--color-surface-secondary);
  color: var(--color-text-secondary);
}

.status-message {
  padding: var(--space-3) var(--space-4);
  border-left: 2px solid currentColor;
  border-radius: var(--radius-1);
  font-size: var(--text-compact);
  font-weight: 500;
}

.status-message--info {
  background: var(--color-info-soft);
  color: var(--color-info);
}

.status-message--valid {
  background: var(--color-valid-soft);
  color: var(--color-valid);
}

.status-message--attention {
  background: var(--color-attention-soft);
  color: var(--color-attention);
}

.status-message--error {
  background: var(--color-error-soft);
  color: var(--color-error);
}

.status-message--exploration {
  background: var(--color-exploration-soft);
  color: var(--color-exploration);
}

.site-footer {
  background: var(--color-inverse);
  color: var(--color-inverse-text);
}

.site-footer__inner {
  display: grid;
  min-height: 8rem;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(max-content, 1fr));
  align-items: start;
  gap: var(--space-12);
  padding-block: var(--space-12);
  font-size: var(--text-compact);
  line-height: var(--leading-body);
}

.site-footer__identity {
  display: grid;
  gap: var(--space-2);
}

.site-footer__identity > a {
  font-size: var(--text-body-large);
}

.site-footer__meta {
  max-width: 42ch;
  color: var(--color-border-strong);
  font-size: var(--text-metadata);
}

.site-footer .site-footer__links {
  align-items: flex-start;
  flex-direction: column;
}

.site-footer a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: var(--space-1);
  color: var(--color-inverse-text);
  font-weight: 600;
}

.site-footer a:focus-visible {
  outline-color: var(--color-inverse-text);
}

.site-footer a:hover {
  color: var(--color-brand-soft);
}

.site-footer a:active {
  color: var(--color-border-strong);
}

@media (max-width: 47.999rem) {
  .site-header__inner {
    position: relative;
    display: grid;
    min-height: 4.5rem;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-2) var(--space-4);
    padding-block: var(--space-2);
  }

  .wordmark {
    min-width: 0;
  }

  .wordmark__mark {
    width: 2.25rem;
    height: 2.25rem;
  }

  .site-nav {
    grid-column: 1 / -1;
    width: 100%;
    padding-bottom: var(--space-2);
  }

  .site-nav__list {
    display: grid;
    width: 100%;
    min-width: 100%;
    align-items: stretch;
    gap: var(--space-1);
  }

  .site-nav__mobile-only {
    display: list-item;
  }

  .site-nav a:not(.button),
  .site-nav .button {
    width: 100%;
    justify-content: flex-start;
    padding: var(--space-3) var(--space-4);
    white-space: normal;
  }

  .site-header[data-nav-enhanced] .site-nav__toggle {
    display: inline-flex;
    min-width: 2.75rem;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: var(--border-standard);
    border-radius: var(--radius-2);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    font-size: var(--text-label);
    font-weight: 600;
  }

  .site-header[data-nav-enhanced] .site-nav__toggle:hover {
    border-color: var(--color-brand);
    background: var(--color-brand-soft);
    color: var(--color-brand-hover);
  }

  .site-header[data-nav-enhanced] .site-nav__toggle:active {
    border-color: var(--color-brand-active);
    color: var(--color-brand-active);
  }

  .site-nav__toggle-icon {
    position: relative;
    width: 1rem;
    height: 0.75rem;
  }

  .site-nav__toggle-icon::before,
  .site-nav__toggle-icon::after {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: var(--radius-pill);
    background: currentColor;
    content: "";
    transition:
      top var(--transition-fast),
      transform var(--transition-fast);
  }

  .site-nav__toggle-icon::before {
    top: 0.125rem;
  }

  .site-nav__toggle-icon::after {
    top: 0.625rem;
  }

  .site-header[data-nav-open="true"] .site-nav__toggle-icon::before,
  .site-header[data-nav-open="true"] .site-nav__toggle-icon::after {
    top: 0.375rem;
  }

  .site-header[data-nav-open="true"] .site-nav__toggle-icon::before {
    transform: rotate(45deg);
  }

  .site-header[data-nav-open="true"] .site-nav__toggle-icon::after {
    transform: rotate(-45deg);
  }

  .site-header[data-nav-enhanced] .site-nav[hidden] {
    display: none;
  }

  .site-header[data-nav-enhanced] .site-nav:not([hidden]) {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    padding: var(--space-3);
    border: var(--border-standard);
    border-radius: var(--radius-3);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
  }
}

@media (min-width: 35.001rem) and (max-width: 63.999rem) {
  .site-footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__identity {
    grid-column: 1 / -1;
  }
}

@media (max-width: 35rem) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding-block: var(--space-8);
  }
}