/* AgentGate — rule catalogue (/rules). Builds on site.css. */

.filters {
  position: sticky;
  top: var(--nav-h);
  z-index: 20;
  display: grid;
  gap: 12px;
  padding: 16px 0 14px;
  margin-bottom: 8px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.filter-label {
  min-width: 76px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.filter-gap { margin-left: 18px; min-width: 0; }

.filter-fw {
  max-height: 34px;
  overflow: hidden;
  transition: max-height 0.25s var(--ease);
}

.filter-fw:hover,
.filter-fw:focus-within,
.filter-fw.is-open {
  max-height: 260px;
}

.filter-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-3);
}

.filter-status span:first-child { margin-right: auto; }

.catalog {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 36px);
}

.gate-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-2);
  scroll-margin-top: calc(var(--nav-h) + 240px);
}

.gate-head p {
  margin-top: 2px;
  font-size: 0.9375rem;
  color: var(--ink-2);
}

.gate-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 2.4rem;
  line-height: 0.9;
  color: var(--ink-3);
}

.rule {
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--nav-h) + 240px);
}

.rule > summary {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr) minmax(0, 0.7fr) 84px;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  padding: 10px 6px;
  cursor: pointer;
  list-style: none;
  border-radius: 10px;
  transition: background 0.15s;
}

.rule > summary::-webkit-details-marker { display: none; }
.rule > summary:hover { background: var(--panel); }
.rule[open] > summary { background: var(--panel); }

.rule .rule-id {
  padding: 0;
  border: 0;
  background: none;
  font-size: 0.75rem;
  color: var(--ink-3);
}

.rule .rule-title {
  font-weight: 550;
  letter-spacing: -0.01em;
}

.rule .rule-cite {
  font-size: 0.8125rem;
  color: var(--ink-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rule > summary .tag { justify-self: end; }

.rule-body {
  display: grid;
  gap: 16px;
  padding: 8px 6px 28px 230px;
  max-width: 1040px;
}

.rule-summary {
  font-size: 1.0625rem;
  color: var(--ink);
}

.rule-facts {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 8px 16px;
  font-size: 0.9375rem;
  color: var(--ink-2);
}

.rule-facts dt {
  font-family: var(--font-mono);
  font-size: 0.71875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 3px;
}

.rule-body h3 {
  font-family: var(--font-mono);
  font-size: 0.71875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 8px;
}

.rule-cites {
  display: grid;
  gap: 6px;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  color: var(--ink-2);
}

.rule-cites b {
  font-weight: 550;
  color: var(--ink);
}

.rule-examples {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.rule-example {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  margin-bottom: 8px;
  border-radius: 12px;
  border: 1px solid var(--line-2);
  background: var(--panel);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.rule-example.miss { color: var(--ink-2); }

.rule-example mark {
  background: var(--m-bg, var(--review-bg));
  color: inherit;
  border-radius: 4px;
  padding: 2px 0;
  box-shadow: 0 2px 0 var(--m-line, var(--review));
}

.rule[data-action="block"] .rule-example mark { --m-bg: var(--block-bg); --m-line: var(--block); }
.rule[data-action="redact"] .rule-example mark { --m-bg: var(--redact-bg); --m-line: var(--redact); }
.rule[data-action="flag"] .rule-example mark { --m-bg: color-mix(in srgb, var(--ink) 8%, transparent); --m-line: var(--ink-3); }

.rule-ctx {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-3);
}

.empty-rules {
  display: grid;
  gap: 6px;
  justify-items: center;
  padding: 56px 24px;
  margin-top: 28px;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-l);
  text-align: center;
  color: var(--ink-3);
}

.empty-rules strong {
  font-size: 1.125rem;
  color: var(--ink);
}

.closing-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(24px, 4vw, 48px);
  border-radius: var(--r-xl);
  border: 1px solid var(--line-2);
  background: var(--panel);
}

@media (max-width: 1020px) {
  .filters { position: static; }
  .rule > summary { grid-template-columns: minmax(0, 1fr) auto; row-gap: 2px; }
  .rule .rule-id { grid-column: 1; grid-row: 1; }
  .rule .rule-title { grid-column: 1; grid-row: 2; }
  .rule .rule-cite { grid-column: 1; grid-row: 3; }
  .rule > summary .tag { grid-column: 2; grid-row: 1 / span 3; }
  .rule-body { padding-left: 6px; }
  .gate-head, .rule { scroll-margin-top: calc(var(--nav-h) + 16px); }
}

@media (max-width: 760px) {
  .rule-examples { grid-template-columns: minmax(0, 1fr); }
  .rule-facts { grid-template-columns: minmax(0, 1fr); gap: 2px 0; }
  .rule-facts dd { margin: 0 0 10px; }
  .filter-label { min-width: 100%; }
  .filter-gap { margin-left: 0; }
  .gate-head { grid-template-columns: auto minmax(0, 1fr); }
  .gate-head .tag { display: none; }
}