/* ═══════════════════════════════════════════════════════════════
   VERIDOM v3.1 — THE CASE THEATRE
   Observable behaviour. One case, five stages, watched end to end.
   Understand → Authorize → Execute → Prove → Learn
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* accessible small-label tone: >=4.8:1 on --deep and --card */
  --label: #8F887C;
  --seal: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 72 80'%3E%3Cpath d='M36 2L68 19.5V57.5L36 75L4 57.5V19.5L36 2Z' fill='none' stroke='%23000' stroke-width='5'/%3E%3Cpath d='M20 26L36 52L52 26' fill='none' stroke='%23000' stroke-width='7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

/* ── signal strip ─────────────────────────────────────────────── */
.signal { background: var(--deep); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.signal-in { display: grid; grid-template-columns: repeat(5, 1fr); }
.signal-cell { padding: 20px clamp(14px,2vw,26px); border-right: 1px solid var(--border); }
.signal-cell:last-child { border-right: 0; }
.signal-cell span { display: block; font-family: var(--mono); font-size: 9.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--label); margin-bottom: 7px; }
.signal-cell strong { font-family: var(--sans); font-size: 14.5px; font-weight: 400; color: var(--parchment); line-height: 1.35; }

/* ── closer line ──────────────────────────────────────────────── */
.closer {
  margin-top: clamp(44px,5vw,68px); padding-top: clamp(28px,3vw,40px); border-top: 1px solid var(--border);
  font-family: var(--serif); font-weight: 400; font-size: clamp(1.5rem,3.2vw,2.6rem); line-height: 1.2;
  letter-spacing: -.02em; color: var(--silver); max-width: 28ch;
}
.closer b { color: var(--parchment); font-weight: 400; }

/* ── asymmetric failure grid ──────────────────────────────────── */
.failgrid { display: grid; grid-template-columns: repeat(12,1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.failcard { background: var(--surface); padding: clamp(26px,3vw,40px); min-height: 232px; display: flex; flex-direction: column; justify-content: space-between; transition: background .4s var(--ease); }
.failcard:hover { background: var(--card); }
.failcard:nth-child(1), .failcard:nth-child(4) { grid-column: span 7; }
.failcard:nth-child(2), .failcard:nth-child(3) { grid-column: span 5; }
.failcard .num { font-family: var(--mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); }
.failcard h3 { margin: 22px 0 12px; font-family: var(--serif); font-weight: 400; font-size: clamp(1.25rem,2.1vw,1.75rem); line-height: 1.22; color: var(--parchment); max-width: 18ch; }
.failcard p { font-size: 14.5px; line-height: 1.62; color: var(--silver); max-width: 46ch; }

/* ── the theatre ──────────────────────────────────────────────── */
.theatre { display: grid; grid-template-columns: 268px minmax(0,1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }

.stages { background: var(--deep); display: flex; flex-direction: column; }
.stage-btn {
  text-align: left; padding: 20px 22px; border-bottom: 1px solid var(--border);
  display: grid; grid-template-columns: 26px 1fr; gap: 14px; align-items: start;
  transition: background .3s var(--ease); position: relative; width: 100%;
}
.stage-btn:last-child { border-bottom: 0; }
.stage-btn::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--gold);
  transform: scaleY(0); transform-origin: top; transition: transform .45s var(--ease);
}
.stage-btn[aria-selected="true"]::before { transform: scaleY(1); }
.stage-btn:hover { background: rgba(184,137,42,.05); }
.stage-btn[aria-selected="true"] { background: rgba(184,137,42,.08); }
.stage-n { font-family: var(--mono); font-size: 10px; letter-spacing: .12em; color: var(--label); padding-top: 4px; }
.stage-btn[aria-selected="true"] .stage-n { color: var(--gold); }
.stage-t { font-family: var(--sans); font-size: 15.5px; color: var(--silver); display: block; line-height: 1.25; }
.stage-btn[aria-selected="true"] .stage-t { color: var(--parchment); }
.stage-d { font-size: 12.5px; color: var(--label); display: block; margin-top: 5px; line-height: 1.45; }

.case { background: var(--card); display: flex; flex-direction: column; min-height: 580px; }
.case-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 14px 22px; border-bottom: 1px solid var(--border); background: rgba(8,9,11,.4);
  font-family: var(--mono); font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--label);
}
.case-bar b { color: var(--gold); font-weight: 400; letter-spacing: .12em; }
.case-live { display: inline-flex; align-items: center; gap: 8px; color: var(--established); }
.case-live::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--established); box-shadow: 0 0 0 4px rgba(61,158,106,.18); animation: pulse 2.8s var(--ease) infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 4px rgba(61,158,106,.18); } 50% { box-shadow: 0 0 0 8px rgba(61,158,106,.04); } }
@media (prefers-reduced-motion: reduce) { .case-live::before { animation: none; } }

.case-head { padding: 24px 22px 20px; border-bottom: 1px solid var(--border); }
.case-head h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.2rem,2vw,1.62rem); line-height: 1.25; color: var(--parchment); max-width: 34ch; }
.case-head p { font-size: 14px; color: var(--silver); line-height: 1.62; margin-top: 11px; max-width: 58ch; }

.case-meta { display: grid; grid-template-columns: repeat(3,1fr); border-bottom: 1px solid var(--border); }
.case-meta > div { padding: 14px 20px; border-right: 1px solid var(--border); }
.case-meta > div:last-child { border-right: 0; }
.case-meta span { display: block; font-family: var(--mono); font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--label); margin-bottom: 6px; }
.case-meta strong { font-size: 13.5px; font-weight: 400; color: var(--parchment); }
.case-meta strong.ok { color: var(--established); }
.case-meta strong.wait { color: var(--waiting); }
.case-meta strong.block { color: var(--blocked); }

.case-body { padding: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; flex: 1; align-content: start; }
.case-col h4 { font-family: var(--mono); font-size: 9.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); font-weight: 400; margin-bottom: 15px; }

.trace { list-style: none; }
.trace li { display: grid; grid-template-columns: 16px 1fr auto; gap: 11px; align-items: start; padding: 9px 0; font-size: 13.5px; color: var(--label); line-height: 1.45; }
.trace .tick { width: 13px; height: 13px; margin-top: 3px; border: 1px solid var(--rail); display: grid; place-items: center; font-family: var(--mono); font-size: 8px; color: transparent; transition: all .4s var(--ease); }
.trace li.is-done { color: var(--silver); }
.trace li.is-done .tick { background: var(--established-deep); border-color: var(--established); color: var(--parchment); }
.trace li.is-now { color: var(--parchment); }
.trace li.is-now .tick { border-color: var(--gold); color: var(--gold); }
.trace li.is-stop .tick { border-color: var(--blocked); color: var(--blocked); }
.trace li.is-stop { color: var(--cream); }
.trace .ts { font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em; color: var(--label); text-transform: uppercase; white-space: nowrap; padding-top: 2px; }

.known { list-style: none; }
.known li { padding: 9px 0; border-bottom: 1px solid rgba(38,44,58,.55); font-size: 13.5px; color: var(--silver); line-height: 1.5; }
.known li:last-child { border-bottom: 0; }
.known .src { display: block; font-family: var(--mono); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; color: var(--label); margin-top: 4px; }
.known li.is-gap { color: var(--waiting); }
.known li.is-gap .src { color: var(--waiting); }
.known li.is-new { color: var(--established); }
.known li.is-new .src { color: var(--established); }

/* ── ask alex ─────────────────────────────────────────────────── */
.ask { border-top: 1px solid var(--border); padding: 18px 22px 24px; background: rgba(8,9,11,.35); }
.ask-k { font-family: var(--mono); font-size: 9.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--label); margin-bottom: 13px; display: flex; align-items: center; gap: 9px; }
.ask-k i { width: 13px; height: 15px; flex-shrink: 0; background: var(--gold); -webkit-mask: var(--seal) center/contain no-repeat; mask: var(--seal) center/contain no-repeat; }
.ask-qs { display: flex; flex-wrap: wrap; gap: 8px; }
.ask-q {
  font-family: var(--sans); font-size: 13px; color: var(--silver);
  padding: 8px 15px; border: 1px solid var(--rail); border-radius: 100px;
  transition: border-color .28s var(--ease), color .28s var(--ease), background .28s var(--ease);
}
.ask-q:hover { border-color: var(--gold); color: var(--parchment); }
.ask-q[aria-pressed="true"] { border-color: var(--gold); background: rgba(184,137,42,.1); color: var(--gold-lt); }
.ask-a {
  margin-top: 16px; padding: 15px 18px; border-left: 2px solid var(--gold);
  background: rgba(184,137,42,.045); font-family: var(--body); font-size: 14.5px;
  line-height: 1.66; color: var(--cream); max-width: 70ch;
}
.ask-a em { color: var(--gold-lt); font-style: normal; }
.ask-a .mono-in { font-family: var(--mono); font-size: 12.5px; color: var(--silver); }

/* stage swap */
.case [data-swap] { transition: opacity .32s var(--ease); }
.case.is-swapping [data-swap] { opacity: 0; }

/* receipts */
.receipts { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.receipt { background: var(--vault); padding: 14px 16px; }
.receipt span { display: block; font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase; color: var(--label); margin-bottom: 7px; }
.receipt strong { font-family: var(--mono); font-size: 12px; font-weight: 400; }

/* film slot */
.film { border: 1px solid var(--border); background: var(--surface); aspect-ratio: 16/9; display: grid; place-items: center; position: relative; overflow: hidden; }
.film video { width: 100%; height: 100%; object-fit: cover; }
.film-empty { text-align: center; padding: 40px; }
.film-empty .fe-k { font-family: var(--mono); font-size: 10px; letter-spacing: .24em; text-transform: uppercase; color: var(--gold); }
.film-empty p { font-size: 14px; color: var(--label); margin: 14px auto 0; max-width: 42ch; }

@media (max-width: 1000px) {
  .signal-in { grid-template-columns: repeat(2,1fr); }
  .signal-cell { border-bottom: 1px solid var(--border); }
  .theatre { grid-template-columns: 1fr; }
  .stages { flex-direction: row; overflow-x: auto; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .stages::-webkit-scrollbar { display: none; }
  .stage-btn { border-bottom: 0; border-right: 1px solid var(--border); min-width: 200px; scroll-snap-align: start; }
  .stage-btn::before { top: auto; bottom: 0; left: 0; right: 0; width: auto; height: 2px; transform: scaleX(0); transform-origin: left; }
  .stage-btn[aria-selected="true"]::before { transform: scaleX(1); }
  .failcard:nth-child(n) { grid-column: span 6; }
}
@media (max-width: 760px) {
  .signal-in { grid-template-columns: 1fr; }
  .signal-cell { border-right: 0; }
  .case-body { grid-template-columns: 1fr; gap: 24px; }
  .case-meta { grid-template-columns: 1fr; }
  .case-meta > div { border-right: 0; border-bottom: 1px solid var(--border); }
  .failcard:nth-child(n) { grid-column: span 12; min-height: 0; }
  .receipts { grid-template-columns: 1fr; }
}