@scope (.birthdays-page) {
  :scope {
    --_surface: var(--color-surface);
    --_muted: var(--color-surface-muted);
    --_border: var(--color-border-muted);
    --_ink: var(--color-text-heading);
    --_accent: var(--color-primary);
    display: flex;
    gap: var(--space-xl);
    container-type: inline-size;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .list-page__content {
    flex: none;
    min-height: auto;
    overflow: visible;
  }

  .birthdays-page__masthead {
    padding-block: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--_border);
  }

  .birthdays-page__eyebrow {
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
  }

  .birthdays-page__title {
    margin-top: var(--space-xs);
    color: var(--_ink);
    font-size: clamp(var(--text-heading-2), 3vw, var(--text-heading-1));
    font-weight: var(--font-semibold);
  }

  .birthdays-page__thesis {
    max-inline-size: 42rem;
    margin-top: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: var(--text-body);
  }

  .birthdays-page__summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border: 1px solid var(--_border);
    border-radius: var(--radius-xl);
    background: var(--_surface);
    box-shadow: var(--shadow-xs);
  }

  .birthdays-page__metric {
    display: grid;
    align-content: start;
    gap: var(--space-xs);
    min-inline-size: 0;
    padding: var(--space-lg);
    border-inline-end: 1px solid var(--_border);
  }

  .birthdays-page__metric:last-child {
    border-inline-end: 0;
  }

  .birthdays-page__metric--today {
    background: var(--color-primary-muted);
  }

  .birthdays-page__metric-label {
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
  }

  .birthdays-page__metric-value {
    color: var(--_ink);
    font-family: var(--font-mono);
    font-size: var(--text-heading-2);
    font-variant-numeric: tabular-nums;
    letter-spacing: var(--tracking-tighter);
    line-height: var(--leading-tight);
  }

  .birthdays-page__metric-detail {
    color: var(--color-text-muted);
    font-size: var(--text-caption);
  }

  .birthdays-page__toolbar {
    padding-bottom: 0;
  }

  .month-nav {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
  }

  .month-label {
    min-width: 14ch;
    color: var(--_ink);
    font-size: var(--text-body);
    font-weight: var(--font-semibold);
    text-align: center;
  }

  .nav-icon {
    display: block;
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
    fill: currentColor;
  }

  .birthdays-page__roster {
    overflow: hidden;
    border: 1px solid var(--_border);
    border-radius: var(--radius-xl);
    background: var(--_surface);
    box-shadow: var(--shadow-xs);
  }

  .birthdays-page__roster-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--_border);
  }

  .birthdays-page__roster-header h2 {
    margin-top: var(--space-2xs);
    color: var(--_ink);
    font-size: var(--text-heading-5);
  }

  .birthdays-page__roster-count {
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: var(--text-caption);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
  }

  .birthdays-page__list {
    display: grid;
  }

  .birthdays-page__empty {
    display: grid;
    justify-items: center;
    gap: var(--space-md);
    min-block-size: 18rem;
    padding: var(--space-4xl) var(--space-lg);
    color: var(--color-text-muted);
    text-align: center;
    place-content: center;
  }

  .birthdays-page__empty-icon {
    width: 2rem;
    height: 2rem;
    color: var(--color-text-secondary);
  }

  .birthday-card {
    display: grid;
    grid-template-columns: auto minmax(12rem, 1fr) minmax(14rem, 1.25fr);
    align-items: center;
    gap: var(--space-xl);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--_border);
    background: var(--_surface);
    transition: background-color 0.18s ease;
  }

  .birthday-card:last-child {
    border-bottom: 0;
  }

  .birthday-card:hover,
  .birthday-card:focus-within {
    background: var(--color-surface-muted);
  }

  .birthday-card--today {
    background: var(--color-primary-muted);
  }

  .birthday-card--today:hover,
  .birthday-card--today:focus-within {
    background: var(--color-primary-muted);
  }

  .birthday-card__date {
    display: grid;
    flex: 0 0 auto;
    width: 3.5rem;
    justify-items: center;
    gap: var(--space-2xs);
    padding: var(--space-sm) var(--space-xs);
    border: 1px solid var(--_border);
    border-radius: var(--radius-md);
    background: var(--_muted);
    color: var(--_ink);
  }

  .birthday-card--today .birthday-card__date {
    border-color: var(--_accent);
    background: var(--_accent);
    color: var(--color-text-on-primary);
  }

  .birthday-card__day {
    font-family: var(--font-mono);
    font-size: var(--text-heading-3);
    font-weight: var(--font-bold);
    font-variant-numeric: tabular-nums;
    letter-spacing: var(--tracking-tighter);
    line-height: var(--leading-none);
  }

  .birthday-card__weekday {
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
  }

  .birthday-card--today .birthday-card__weekday {
    color: inherit;
  }

  .birthday-card__identity {
    min-inline-size: 0;
  }

  .birthday-card__name {
    display: block;
    overflow: hidden;
    color: var(--_ink);
    font-size: var(--text-body);
    font-weight: var(--font-semibold);
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .birthday-card__name:hover {
    color: var(--_accent);
  }

  .birthday-card__name:focus-visible,
  .birthday-card__call:focus-visible {
    outline: var(--focus-ring);
    outline-offset: var(--focus-ring-offset);
  }

  .birthday-card__facts {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-2xs);
  }

  .birthday-card .badge {
    max-inline-size: 100%;
  }

  .birthday-card .badge .icon {
    width: 1em;
    height: 1em;
  }

  .birthday-card__call {
    text-decoration: none;
  }

  .birthday-card__today-badge {
    --_bg: var(--_accent);
    --_text: var(--color-text-on-primary);
  }

  .birthday-card__when {
    display: grid;
    gap: var(--space-sm);
    min-inline-size: 0;
  }

  .birthday-card__when-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-md);
    color: var(--color-text-secondary);
    font-size: var(--text-caption);
  }

  .birthday-card__when-value {
    color: var(--_ink);
    font-family: var(--font-mono);
    font-size: var(--text-heading-5);
    font-variant-numeric: tabular-nums;
  }

  .birthday-card__meter {
    width: 100%;
    height: 0.875rem;
    appearance: none;
    border: 0;
    border-radius: var(--radius-full);
    background:
      repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), var(--color-border) calc(10% - 1px) 10%),
      var(--color-surface-muted);
  }

  .birthday-card__meter::-webkit-meter-bar {
    border: 0;
    border-radius: inherit;
    background:
      repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), var(--color-border) calc(10% - 1px) 10%),
      var(--color-surface-muted);
  }

  .birthday-card__meter::-webkit-meter-optimum-value {
    border-radius: inherit;
    background: var(--_accent);
  }

  .birthday-card__meter::-moz-meter-bar {
    border-radius: inherit;
    background: var(--_accent);
  }

  .birthday-card__countdown {
    color: var(--color-text-muted);
    font-size: var(--text-caption);
  }

  .birthday-card--today .birthday-card__countdown {
    color: var(--_ink);
    font-weight: var(--font-semibold);
  }

  @container (width < 48rem) {
    .month-nav {
      justify-content: center;
    }

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

    .birthdays-page__metric:nth-child(2) {
      border-inline-end: 0;
    }

    .birthdays-page__metric:nth-child(-n + 2) {
      border-bottom: 1px solid var(--_border);
    }

    .birthday-card {
      grid-template-columns: auto minmax(0, 1fr);
      gap: var(--space-lg);
    }

    .birthday-card__when {
      grid-column: 1 / -1;
    }
  }

  @container (width < 28rem) {
    .birthdays-page__summary {
      grid-template-columns: 1fr;
    }

    .birthdays-page__metric {
      border-inline-end: 0;
      border-bottom: 1px solid var(--_border);
    }

    .birthdays-page__metric:last-child {
      border-bottom: 0;
    }

    .birthdays-page__roster-header {
      align-items: start;
      flex-direction: column;
    }

    .birthday-card {
      grid-template-columns: 1fr;
    }

    .birthday-card__when {
      grid-column: auto;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .birthday-card {
      transition: none;
    }
  }
}