.product-mark {
  display: inline-flex;
  min-height: var(--control-min);
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-primary);
  font-size: var(--type-label);
  font-weight: 700;
  text-decoration: none;
}

.product-mark--rail {
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.product-mark--rail .product-mark__text {
  max-width: var(--rail-width);
  line-height: 1.2;
}

.frame-rail {
  position: fixed;
  z-index: var(--z-rail);
  inset: 0 auto 0 0;
  display: none;
  width: var(--rail-width);
  padding: var(--space-4) var(--space-2);
  background: var(--color-rail);
  border-right: var(--border-subtle);
}

.frame-rail__item {
  position: relative;
  display: flex;
  min-height: var(--control-comfortable);
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2);
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--type-caption);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: color var(--motion-micro) cubic-bezier(0.2, 0, 0, 1), background-color var(--motion-micro) cubic-bezier(0.2, 0, 0, 1), transform var(--motion-immediate) ease-out;
}

.frame-rail__item[aria-current="page"] {
  background: var(--color-surface-strong);
  color: var(--color-text-primary);
  box-shadow: inset var(--space-1) 0 0 var(--color-accent);
}

.frame-rail__logout {
  margin-top: auto;
}

.frame-rail__button,
.app-header__button {
  font-family: inherit;
  cursor: pointer;
}

.app-header {
  position: sticky;
  z-index: var(--z-sticky);
  top: 0;
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-inline: var(--space-4);
  background: var(--color-rail);
  border-bottom: var(--border-subtle);
}

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

.app-header__actions form {
  margin: 0;
}

.app-header__link {
  display: inline-flex;
  min-height: var(--control-comfortable);
  align-items: center;
  padding-inline: var(--space-3);
  border: 0;
  background: transparent;
  color: var(--color-text-primary);
  font-size: var(--type-label);
  font-weight: 700;
  text-decoration: none;
}

.button {
  display: inline-flex;
  min-height: var(--control-comfortable);
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding-inline: var(--space-5);
  border: 0;
  border-radius: var(--radius-pill);
  font-size: var(--type-label);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--motion-micro) cubic-bezier(0.2, 0, 0, 1), background-color var(--motion-micro) cubic-bezier(0.2, 0, 0, 1), transform var(--motion-immediate) ease-out;
}

.button--primary {
  min-height: var(--control-comfortable);
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.button--secondary {
  border: var(--border-strong);
  background: var(--color-surface-strong);
  color: var(--color-text-primary);
}

.button--quiet {
  background: transparent;
  color: var(--color-accent);
}

.button:disabled,
.button[data-state="disabled"] {
  opacity: 0.46;
}

.view-switch {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  box-shadow: var(--shadow-inset);
}

.view-switch__label {
  padding-inline: var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--type-label);
  font-weight: 700;
}

.view-switch a {
  display: inline-flex;
  min-height: var(--control-comfortable);
  align-items: center;
  padding-inline: var(--space-4);
  border-radius: var(--radius-pill);
  color: var(--color-text-secondary);
  font-weight: 700;
  text-decoration: none;
}

.view-switch a[aria-current="page"] {
  background: var(--color-surface-strong);
  color: var(--color-accent);
  box-shadow: var(--shadow-inset);
}

.sort-control {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}