.mhr-page {
  --mhr-header-offset: 79px;
  --mhr-sticky-rows: calc(var(--mhr-header-offset) + 4.75rem);
  --mhr-accent: #f59e0b;
  --mhr-accent-rgb: 245, 158, 11;
  --mhr-row: 2.35rem;
}

.mhr-header .breadcrumb {
  margin-bottom: 0.85rem;
}

.mhr-header .page-description a {
  color: var(--color-accent-blue);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  text-decoration-thickness: 1px;
}

.mhr-header .page-description a:hover {
  color: var(--color-text-primary);
}

.mhr-header .page-intro-meta > i {
  color: var(--mhr-accent);
}

.mhr-container {
  padding-bottom: 4rem;
}

.mhr-search-row {
  position: sticky;
  top: var(--mhr-header-offset);
  z-index: 20;
  display: flex;
  gap: 0.6rem;
  align-items: center;
  padding: 1rem 0 0.85rem;
  margin-bottom: 0.35rem;
  background: linear-gradient(180deg,
      var(--color-bg-primary) 0%,
      var(--color-bg-primary) 78%,
      rgba(10, 10, 15, 0) 100%);
}

.mhr-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: 1 1 auto;
  min-width: 0;
  height: 46px;
  padding: 0 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.mhr-search:focus-within {
  border-color: var(--color-border-light);
  box-shadow: var(--focus-ring);
}

.mhr-search > i {
  flex: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.mhr-search input {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  border: 0;
  background: none;
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.mhr-search input:focus {
  outline: none;
}

.mhr-search input::placeholder {
  color: var(--color-text-placeholder);
}

.mhr-search input::-webkit-search-cancel-button {
  display: none;
}

.mhr-search-clear {
  flex: none;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--surface-interactive);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mhr-search-clear:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.mhr-search kbd {
  flex: none;
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.4;
}

@media (max-width: 560px) {
  .mhr-search kbd {
    display: none;
  }
}

.mhr-scope,
.mhr-format {
  display: flex;
  flex: none;
  padding: 3px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
}

.mhr-scope-btn,
.mhr-format-btn {
  padding: 0 0.75rem;
  height: 32px;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text-secondary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mhr-scope-btn {
  height: 38px;
}

.mhr-scope-btn:hover,
.mhr-format-btn:hover {
  color: var(--color-text-primary);
}

.mhr-scope-btn.is-active,
.mhr-format-btn.is-active {
  background: var(--surface-interactive);
  color: var(--color-text-primary);
}

.mhr-format-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.mhr-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.mhr-nav-toggle {
  display: none;
}

.mhr-nav {
  position: sticky;
  top: calc(var(--mhr-sticky-rows) + 0.5rem);
  max-height: calc(100vh - var(--mhr-sticky-rows) - 1.75rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 0.5rem;
  scrollbar-width: thin;
}

.mhr-nav-group + .mhr-nav-group {
  margin-top: 1.15rem;
}

.mhr-nav-group-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.4rem;
  padding: 0 0.55rem;
  color: var(--color-text-muted);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.mhr-nav-group-title > i {
  font-size: 0.72rem;
  opacity: 0.8;
}

.mhr-nav-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mhr-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.32rem 0.55rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  line-height: 1.35;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mhr-nav-item:hover {
  background: var(--surface-raised);
  color: var(--color-text-primary);
}

.mhr-nav-item.is-active {
  background: var(--surface-interactive);
  color: var(--color-text-primary);
  font-weight: 500;
  box-shadow: inset 2px 0 0 var(--mhr-accent);
}

.mhr-nav-item-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mhr-nav-item-count {
  flex: none;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
}

.mhr-main {
  min-width: 0;
}

.mhr-list-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.85rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-subtle);
}

.mhr-list-head-copy {
  min-width: 0;
}

.mhr-list-title {
  margin: 0 0 0.15rem;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.mhr-list-meta {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.mhr-list-meta code {
  padding: 0.05rem 0.3rem;
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.mhr-list-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: none;
}

.mhr-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  height: 38px;
  padding: 0 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.mhr-btn:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-light);
  color: var(--color-text-primary);
}

.mhr-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.mhr-btn > i {
  font-size: 0.8rem;
}

.mhr-note {
  display: flex;
  gap: 0.6rem;
  margin: 0.85rem 0 0;
  padding: 0.7rem 0.85rem;
  border: 1px solid rgba(var(--ds-warning-rgb), 0.28);
  border-radius: var(--radius-md);
  background: rgba(var(--ds-warning-rgb), 0.07);
  color: var(--color-text-secondary);
  font-size: 0.84rem;
  line-height: 1.55;
}

.mhr-note > i {
  flex: none;
  margin-top: 0.18rem;
  color: var(--color-warning);
}

.mhr-summary {
  margin: 0.85rem 0 0.35rem;
  min-height: 1.1rem;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.mhr-summary mark {
  padding: 0;
  background: none;
  color: var(--color-text-secondary);
  font-weight: 600;
}

.mhr-table-wrap {
  position: relative;
}

.mhr-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.mhr-table thead th {
  position: sticky;
  top: var(--mhr-sticky-rows);
  z-index: 10;
  padding: 0.4rem 0.6rem;
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: left;
  white-space: nowrap;
}

.mhr-col-id { width: 8.5rem; }
.mhr-col-slot { width: 4.5rem; }
.mhr-col-list { width: 10rem; }
.mhr-col-copy { width: 2.5rem; }

.mhr-table tbody tr {
  border-bottom: 1px solid var(--border-subtle);
}

.mhr-table tbody tr:hover {
  background: var(--surface-raised);
}

.mhr-table tbody tr.is-flash {
  background: rgba(var(--mhr-accent-rgb), 0.12);
}

.mhr-table td {
  padding: 0 0.6rem;
  height: var(--mhr-row);
  vertical-align: middle;
}

.mhr-id {
  padding: 0.1rem 0.35rem;
  margin-left: -0.35rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text-primary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mhr-id:hover {
  background: rgba(var(--mhr-accent-rgb), 0.14);
  color: var(--mhr-accent);
}

.mhr-slot {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
}

.mhr-name {
  color: var(--color-text-primary);
}

.mhr-name .mhr-dup {
  margin-left: 0.35rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.mhr-name mark {
  padding: 0;
  border-radius: 2px;
  background: rgba(var(--mhr-accent-rgb), 0.22);
  color: inherit;
}

.mhr-hide-list-col .mhr-col-list,
.mhr-hide-list-col .mhr-list-cell {
  display: none;
}

.mhr-list-cell {
  color: var(--color-text-muted);
  font-size: 0.76rem;
  white-space: nowrap;
}

.mhr-list-cell a {
  color: inherit;
}

.mhr-list-cell a:hover {
  color: var(--color-text-secondary);
  text-decoration: underline;
}

.mhr-copy {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.mhr-table tbody tr:hover .mhr-copy,
.mhr-copy:focus-visible {
  opacity: 1;
}

.mhr-copy:hover {
  background: var(--surface-interactive);
  color: var(--color-text-primary);
}

@media (hover: none) {
  .mhr-copy {
    opacity: 1;
  }
}

.mhr-sentinel {
  height: 1px;
}

.mhr-state {
  margin: 1.25rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-align: center;
}

.mhr-state[hidden] {
  display: none;
}

.mhr-footnote {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.mhr-footnote p {
  margin: 0;
  max-width: 78ch;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  line-height: 1.65;
}

.mhr-footnote code {
  padding: 0.05rem 0.3rem;
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.mhr-empty {
  padding: 4rem 1rem;
  text-align: center;
  color: var(--color-text-secondary);
}

.mhr-empty > i {
  font-size: 2rem;
  color: var(--color-text-muted);
}

.mhr-empty h2 {
  margin: 1rem 0 0.35rem;
  font-size: 1.1rem;
}

.mhr-toast {
  position: fixed;
  left: 50%;
  bottom: 1.75rem;
  z-index: 1200;
  transform: translate(-50%, 0.5rem);
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-tertiary);
  box-shadow: var(--ds-shadow-pop);
  color: var(--color-text-primary);
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.mhr-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.mhr-toast code {
  font-family: var(--font-mono);
  color: var(--mhr-accent);
}

@media (max-width: 900px) {
  .mhr-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
  }

  .mhr-nav-toggle {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    height: 44px;
    padding: 0 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
  }

  .mhr-nav-toggle-caret {
    margin-left: auto;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
  }

  .mhr-nav-toggle[aria-expanded="true"] .mhr-nav-toggle-caret {
    transform: rotate(180deg);
  }

  .mhr-nav {
    position: static;
    max-height: 60vh;
    padding: 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-secondary);
  }

  .mhr-nav[hidden] {
    display: none;
  }
}

@media (max-width: 700px) {
  .mhr-search-row {
    flex-wrap: wrap;
  }

  .mhr-scope {
    width: 100%;
  }

  .mhr-scope-btn {
    flex: 1;
  }

  .mhr-list-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .mhr-list-actions {
    width: 100%;
  }

  .mhr-btn {
    flex: 1;
    justify-content: center;
  }

  .mhr-col-slot,
  .mhr-table td.mhr-slot-cell,
  .mhr-col-copy,
  .mhr-table td:last-child {
    display: none;
  }

  .mhr-col-id { width: 6.6rem; }
  .mhr-col-list { width: 5.5rem; }

  .mhr-table { font-size: 0.83rem; }
  .mhr-id { font-size: 0.78rem; }
  .mhr-list-cell { font-size: 0.72rem; }
}

@media (prefers-reduced-motion: reduce) {
  .mhr-toast,
  .mhr-nav-toggle-caret {
    transition: none;
  }
}