.covering-explorer {
  --covering-fill: #214e76;
  --covering-tint: #e6edf2;
  margin-top: 2rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}
.covering-explorer[hidden] { display: none; }
.companion-main .covering-explorer h3 { margin: 0 0 .5rem; font-size: 1.35rem; }
.companion-main .covering-explorer p { margin: .5rem 0; }
.covering-intro, .covering-help, .covering-exact, .covering-legend, .covering-detail { font-size: .875rem; }
.covering-help, .covering-exact, .covering-legend { color: var(--muted); }
.covering-form { display: flex; align-items: end; flex-wrap: wrap; gap: .65rem; margin: 1.25rem 0 .5rem; }
.covering-field { display: grid; gap: .3rem; flex: 1 1 220px; }
.covering-field label { font-size: .875rem; font-weight: 600; }
.covering-field input { min-width: 0; width: 100%; font: inherit; font-size: 1rem; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: var(--ink); padding: .6rem .75rem; }
.covering-action { font: inherit; font-size: .875rem; min-height: 44px; padding: .6rem .85rem; border: 1px solid var(--blue); border-radius: 4px; color: var(--paper); background: var(--blue); cursor: pointer; }
.covering-action-secondary { color: var(--blue); background: transparent; }
.covering-rules { display: flex; flex-wrap: wrap; gap: .45rem; margin: .75rem 0 1.25rem; }
.covering-rule { font: inherit; font-size: .875rem; padding: .4rem .65rem; border: 1px solid var(--line); border-radius: 4px; color: var(--blue); background: transparent; cursor: pointer; font-variant-numeric: tabular-nums; transition: opacity .2s ease, background-color .2s ease; }
.covering-rule:hover { background: var(--covering-tint); }
.covering-rule.is-pending { opacity: .35; }
.covering-summary { font-family: Georgia, 'Times New Roman', serif; font-size: 1.55rem; letter-spacing: -.015em; }
.covering-meter { height: 5px; margin: .7rem 0; overflow: hidden; border-radius: 3px; background: var(--line); }
.covering-meter span { display: block; height: 100%; background: var(--covering-fill); transition: width .4s ease; }
.covering-exact { overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.covering-grid-header { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: .5rem; margin: 1.25rem 0 .65rem; font-size: .875rem; }
.covering-legend { display: flex; gap: .85rem; flex-wrap: wrap; }
.covering-legend span { display: inline-flex; align-items: center; gap: .3rem; }
.covering-swatch { display: inline-block; width: 10px; height: 10px; background: var(--covering-fill); border-radius: 2px; }
.covering-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 5px; }
.covering-number { position: relative; min-width: 0; height: 42px; font: inherit; font-size: .875rem; font-variant-numeric: tabular-nums; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: var(--muted); cursor: pointer; transition: background-color .22s ease, color .22s ease; }
.covering-number.is-covered { border-color: transparent; color: var(--paper); background: var(--covering-fill); }
.covering-number[aria-pressed="true"] { outline: 2px solid var(--blue); outline-offset: 2px; }
.covering-mark { position: absolute; bottom: -2px; left: 0; width: 100%; text-align: center; font-size: 12px; line-height: 1; }
.covering-detail { min-height: 2.9em; overflow-wrap: anywhere; }
.covering-animation-row { display: flex; align-items: center; flex-wrap: wrap; gap: .7rem; margin-top: .9rem; }
.covering-animation-status { font-size: .875rem; color: var(--muted); }
.covering-error:empty { display: none; }
.covering-error { font-size: .875rem; color: #962e24; }
.covering-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.covering-explorer button:focus-visible, .covering-explorer input:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
@media (max-width: 600px) {
  .covering-grid { grid-template-columns: repeat(10, minmax(0, 1fr)); }
}
@media (max-width: 460px) {
  .covering-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .covering-summary { font-size: 1.3rem; }
}
@media (pointer: coarse) {
  .covering-number, .covering-rule { min-height: 44px; }
  .covering-grid { grid-template-columns: repeat(auto-fit, minmax(40px, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  .covering-number, .covering-rule, .covering-meter span { transition: none; }
}