/**
 * registry.css — the licensing registry.
 *
 * sovfound.org's public-registry vocabulary (tr-, sk-, mk-, ent-, lg-),
 * set on the dark ground. Red marks what carries weight: the granted
 * patent, the licensing entity's place in the chain, a live filter.
 */

/* ── The stack ──────────────────────────────────────────────────── */

.sk-stack { width: 100%; max-width: 880px; display: flex; flex-direction: column; gap: 10px; }

.sk-tier {
  border: 1px solid var(--rule-soft);
  border-left: var(--edge) solid var(--accent);
  border-radius: var(--r-md);
  padding: 1.1em 1.4em 1.2em;
  background: var(--paper-raise);
}

.sk-tierhead { display: flex; align-items: baseline; gap: 12px; margin-bottom: 4px; }
.sk-tiernum  { font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }
.sk-tiername { font-family: var(--serif); font-size: 1.08rem; font-weight: 600; color: var(--ink-strong); }
.sk-principle { font-family: var(--serif); font-size: 0.88rem; font-style: italic; color: var(--ink-muted); margin-bottom: 0.9em; line-height: 1.5; }

.sk-comps { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 6px; }
.sk-comp { border: 1px solid var(--rule-soft); border-radius: var(--r-sm); padding: 0.55em 0.75em; background: var(--paper); }
.sk-comp.sk-marked { border-color: var(--rule-warm); }
.sk-name { display: block; font-family: var(--mono); font-size: 9.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-strong); }
.sk-desc { display: block; font-family: var(--sans); font-size: 11px; color: var(--ink-muted); margin-top: 3px; line-height: 1.4; }

/* ── Chips ──────────────────────────────────────────────────────── */

.tr-chips { display: flex; flex-wrap: wrap; gap: 4px; }
.tr-chips.centred { justify-content: center; }

.tr-chip {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 6px;
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-sm);
  color: var(--ink-dim);
}
.tr-chip-std { color: var(--accent); border-color: var(--accent-line); }

/* ── Technology cards ───────────────────────────────────────────── */

.tr-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; width: 100%; }

.tr-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule-soft);
  border-left: var(--edge) solid var(--accent-deep);
  border-radius: var(--r-lg);
  padding: 1.15em 1.25em;
  background: var(--paper-raise);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
}
.tr-name { font-family: var(--mono); font-size: 11.5px; font-weight: 600; letter-spacing: 0.13em; text-transform: uppercase; color: var(--ink-strong); margin-bottom: 0.45em; }
.tr-sum { font-family: var(--serif); font-size: 0.95rem; line-height: 1.55; color: var(--ink); margin-bottom: 0.9em; }
.tr-card .tr-chips { margin-top: auto; }

.tr-find {
  align-self: flex-start;
  margin-top: 0.9em;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-muted);
  background: none; border: none; border-bottom: 1px solid var(--rule-strong); padding: 0 0 2px; cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.tr-find:hover { color: var(--accent-hi); border-bottom-color: var(--accent); }

.tr-card:hover { background: var(--paper-soft); border-left-color: var(--accent); transform: translateY(-2px); box-shadow: var(--lift-2); }

/* ── The estate ledger ──────────────────────────────────────────── */

.est { width: 100%; }

.est-tools {
  position: sticky; top: 68px; z-index: 5;
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px;
  padding: 14px 0 12px;
  background: rgba(13, 12, 11, 0.94);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}

.est-q {
  flex: 1 1 260px;
  min-width: 0;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em;
  color: var(--ink-strong);
  background: var(--paper-raise);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-md);
  padding: 9px 12px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.est-q::placeholder { color: var(--ink-dim); }
.est-q:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-wash); }

.est-groups { display: flex; flex-wrap: wrap; gap: 4px; }

.est-g {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-muted);
  background: none;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  padding: 5px 10px;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.est-g:hover { color: var(--ink-strong); border-color: var(--ink-faint); }
.est-g[aria-pressed="true"] { color: var(--ink-strong); border-color: var(--accent); background: var(--accent-wash); }
.est-g .n { color: var(--ink-dim); margin-left: 4px; }

.est-count { flex-basis: 100%; font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-dim); }
.est-count b { color: var(--accent); font-weight: 600; }

@media (max-width: 760px) { .est-tools { position: static; background: none; -webkit-backdrop-filter: none; backdrop-filter: none; } }

.est-head { font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); margin: 2.4em 0 0.35em; }
.est-head .n { color: var(--accent); }
.est-blurb { font-family: var(--serif); font-size: 0.85rem; font-style: italic; color: var(--ink-dim); margin: 0 0 0.8em; line-height: 1.55; }

.lg-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.lg-table { min-width: 680px; width: 100%; border-collapse: collapse; }
.lg-table thead th {
  font-family: var(--mono); font-size: 9px; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-dim); text-align: left;
  padding: 0 14px 10px 0; border-bottom: 1px solid var(--rule-strong);
}
.lg-table tbody td { padding: 12px 14px 12px 0; border-bottom: 1px solid var(--rule-soft); vertical-align: baseline; }
.lg-table tbody tr { transition: background 0.15s ease; }
.lg-table tbody tr:hover { background: var(--paper-soft); }
.lg-table tbody tr.is-hit { background: var(--accent-wash); }

.lg-app  { font-family: var(--mono); font-size: 11px; color: var(--ink-strong); white-space: nowrap; padding-left: 10px !important; }
.lg-name { font-family: var(--serif); font-size: 0.95rem; font-weight: 600; color: var(--ink-strong); min-width: 9em; }
.lg-date { font-family: var(--mono); font-size: 10.5px; color: var(--ink-muted); white-space: nowrap; }
.lg-sum  { font-family: var(--serif); font-size: 0.9rem; line-height: 1.5; color: var(--ink); max-width: 480px; }

.st { display: inline-block; white-space: nowrap; font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.1em; text-transform: uppercase; line-height: 1.5; padding: 2px 7px; border: 1px solid var(--rule-strong); border-radius: var(--r-sm); color: var(--ink-muted); }
.st-granted { color: #fff; background: var(--accent-deep); border-color: var(--accent-deep); }
.st-allowed { color: var(--accent); border-color: var(--accent-line); }

tr.is-granted .lg-app { box-shadow: inset 2px 0 0 var(--accent); }

/* Narrow screens: each filing becomes a stacked card rather than a row
   that scrolls sideways. The header row stays for screen readers. */
@media (max-width: 620px) {
  .lg-wrap { overflow: visible; }
  .lg-table, .lg-table tbody { display: block; min-width: 0; }
  .lg-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .lg-table tbody tr { display: grid; grid-template-columns: 1fr auto; gap: 5px 12px; padding: 14px 4px 15px 12px; border-bottom: 1px solid var(--rule-soft); }
  .lg-table tbody tr:first-child { border-top: 1px solid var(--rule-strong); }
  .lg-table tbody td { padding: 0; border: 0; }
  .lg-app { padding-left: 0 !important; }
  .lg-date { grid-column: 2; grid-row: 1; text-align: right; }
  .lg-name, .lg-table td:nth-child(4), .lg-sum { grid-column: 1 / -1; max-width: none; }
  .lg-name { font-size: 1.02rem; }
  tr.is-granted .lg-app { box-shadow: none; }
  tr.is-granted { box-shadow: inset 2px 0 0 var(--accent); }
}

mark { background: rgba(224, 74, 58, 0.28); color: var(--ink-strong); border-radius: 2px; padding: 0 1px; }

.est-empty { display: none; font-family: var(--serif); font-style: italic; color: var(--ink-dim); text-align: center; padding: 2.4em 0 0.6em; }
.est.is-empty .est-empty { display: block; }

.lapsed {
  max-width: var(--w-read);
  margin: 3em 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.04em;
  line-height: 1.95;
  color: var(--ink-dim);
}
.lapsed .k { color: var(--accent); }

/* ── Marks ──────────────────────────────────────────────────────── */

.mk-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 34px; width: 100%; }
.mk-table { width: 100%; border-collapse: collapse; font-size: 12px; margin-top: 12px; }
.mk-table thead th {
  font-family: var(--mono); font-size: 9px; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-dim); text-align: left;
  padding: 0 12px 9px 0; border-bottom: 1px solid var(--rule-strong);
}
.mk-table tbody td { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--rule-soft); }
.mk-word   { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.09em; color: var(--ink-strong); }
.mk-serial { font-family: var(--mono); font-size: 10px; color: var(--ink-muted); }
.mk-status { font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-dim); }
.mk-status.is-published { color: var(--accent); }

.mk-note {
  width: 100%;
  max-width: var(--w-read);
  border-left: 2px solid var(--accent);
  padding: 0.2em 0 0.2em 1.3em;
  font-family: var(--serif);
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--ink-soft);
}
.mk-note strong { color: var(--ink-strong); font-weight: 600; }

/* ── Entities ───────────────────────────────────────────────────── */

.ent-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; width: 100%; }
.ent-card { position: relative; border: 1px solid var(--rule-soft); border-radius: var(--r-md); padding: 1.1em 1.2em; background: var(--paper-raise); }
.ent-name { font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: 0.13em; text-transform: uppercase; color: var(--ink-strong); margin-bottom: 6px; }
.ent-role { font-family: var(--serif); font-size: 0.95rem; color: var(--ink); line-height: 1.55; }
.ent-note { font-family: var(--sans); font-size: 11.5px; color: var(--ink-muted); margin-top: 6px; line-height: 1.5; }

.ent-card.is-self { border-color: var(--accent-line); border-top: var(--edge) solid var(--accent); background: linear-gradient(180deg, var(--accent-wash), transparent 70%), var(--paper-raise); }
.ent-card.is-self .ent-name { color: var(--accent); }
.ent-self-tag { display: block; margin-bottom: 8px; font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }