:root {
  --ink: #0a1326;
  --ink-2: #0e1b33;
  --paper: #ece3cb;
  --paper-dim: #9aa6bf;
  --brass: #c7a45a;
  --brass-bright: #e3c77e;
  --brass-line: #5d4e2d;
  --glory: #c2354a;
  --glory-soft: #c2354a26;
  --rust: #d08c5a;
  --font-display: "IM Fell English SC", Georgia, serif;
  --font-script: "IM Fell English", Georgia, serif;
  --font-body: "Spectral", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { min-height: 100%; }

body {
  margin: 0;
  min-height: 100%;
  color: var(--paper);
  background-color: var(--ink);
  /* Faint intaglio engraving: a vignette over fine diagonal guilloche lines. */
  background-image:
    radial-gradient(120% 80% at 50% -10%, #16294a 0%, var(--ink) 60%),
    repeating-linear-gradient(45deg, #ffffff05 0 1px, transparent 1px 7px),
    repeating-linear-gradient(-45deg, #ffffff04 0 1px, transparent 1px 7px);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

.sheet {
  max-width: 1640px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 0.5rem;
  padding: clamp(0.6rem, 1.2vw, 1rem) clamp(0.9rem, 2.2vw, 2rem) 1.4rem;
}

a { color: var(--brass-bright); text-underline-offset: 3px; }
a:focus-visible, .cert-link:focus-visible { outline: 2px solid var(--brass-bright); outline-offset: 3px; }

/* ---- Top bar: brand + aggregate ledger (REQ-012) ----------------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; flex-wrap: wrap;
  border-bottom: 1px solid var(--brass); padding-bottom: 0.75rem;
}
.brand { display: flex; align-items: baseline; gap: 0.9rem; flex-wrap: wrap; }
.wordmark {
  font-family: var(--font-display); font-weight: 400; line-height: 0.9;
  font-size: clamp(2rem, 4vw, 2.9rem); margin: 0; color: var(--paper);
  animation: rise 0.5s ease both;
}
.eyebrow {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.34em;
  text-transform: uppercase; color: var(--brass); margin: 0;
}
.dek {
  font-family: var(--font-script); font-style: italic; color: var(--paper-dim);
  font-size: 0.95rem; margin: 0; max-width: 30ch;
}

.ledger { display: flex; gap: 0; border: 1px solid var(--brass-line); font-family: var(--font-mono); }
.ledger-cell {
  padding: 0.4rem 0.95rem; border-left: 1px solid var(--brass-line);
  font-size: 0.74rem; color: var(--paper); white-space: nowrap;
  display: flex; align-items: center;
}
.ledger-cell:first-child { border-left: 0; }
.ledger-quiet { color: var(--paper-dim); }

/* ---- Stale-roster banner (REQ-151) ------------------------------- */
.roster-stale {
  display: flex; align-items: baseline; gap: 0.85rem; flex-wrap: wrap;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--glory); border-left: 3px solid var(--glory);
  background: var(--glory-soft);
  animation: rise 0.5s ease both;
}
.roster-stale-mark {
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.2em;
  text-transform: uppercase; font-weight: 600; color: var(--glory); white-space: nowrap;
}
.roster-stale-text { font-family: var(--font-mono); font-size: 0.74rem; color: var(--paper); }

/* ---- Certificate strip (PATRIOT block, UIB-001) ------------------ */
.certificate {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #0f1f3b, var(--ink-2));
  border: 1px solid var(--brass);
  box-shadow: inset 0 0 0 4px var(--ink-2), inset 0 0 0 5px var(--brass-line);
  padding: 0.55rem 1rem;
  animation: rise 0.5s ease 0.04s both;
}
.certificate::before {
  /* Declaration watermark - encodes the OP_RETURN content (THM-001). */
  content: "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights.";
  position: absolute; inset: 0 -2% auto auto; pointer-events: none; user-select: none;
  width: 60%; text-align: right;
  font-family: var(--font-script); font-style: italic; font-size: 1.5rem; line-height: 1.2;
  color: var(--paper); opacity: 0.05;
}
.cert-bar { position: relative; display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.cert-id { display: flex; align-items: center; gap: 0.85rem; }
.cert-seal {
  flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 600; color: var(--brass-bright);
  border: 1px solid var(--brass);
  box-shadow: inset 0 0 0 2px var(--ink-2), inset 0 0 0 3px var(--brass-line);
  background: radial-gradient(circle, #16294a, var(--ink-2));
}
.panel-eyebrow {
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.26em;
  text-transform: uppercase; color: var(--brass); margin: 0 0 0.15rem;
}
.panel-title { font-family: var(--font-display); font-weight: 400; font-size: 1.35rem; margin: 0; color: var(--paper); }

.cert-fields { display: flex; flex-wrap: wrap; gap: 0 1.6rem; margin: 0; margin-left: auto; }
.cert-fields > div { padding: 0.1rem 0; }
.cert-fields dt {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--paper-dim); margin: 0;
}
.cert-fields dd { margin: 0; font-family: var(--font-mono); font-size: 0.9rem; }
.cert-fields dd.glory { color: var(--brass-bright); }
.cert-link {
  margin-left: auto; font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.06em;
  padding: 0.4rem 0.9rem; color: var(--ink); background: var(--brass); text-decoration: none; border-radius: 1px;
  white-space: nowrap;
}
.cert-link:hover { background: var(--brass-bright); }

.cert-awaiting { margin-left: auto; display: flex; align-items: center; gap: 1.1rem; }
.awaiting-stamp {
  font-family: var(--font-display); font-size: 1.3rem; color: var(--brass);
  border: 1px solid var(--brass-line); border-radius: 2px; padding: 0.2rem 0.9rem;
  transform: rotate(-1.5deg); opacity: 0.9;
}
.awaiting-sub { font-family: var(--font-mono); font-size: 0.75rem; color: var(--paper-dim); }

/* ---- Address cards (REQ-011 / REQ-014) --------------------------- */
.cards-eyebrow {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--brass); margin: 0;
}
.cards {
  display: grid; gap: 0.55rem;
  grid-template-columns: repeat(3, 1fr);
  align-content: start;
}
.card {
  position: relative; padding: 0.4rem 0.65rem 0.4rem;
  background: var(--ink-2); border: 1px solid var(--brass-line);
  transition: border-color 0.2s ease;
}
.card:hover { border-color: var(--brass); }
.card.block-found {
  border-color: var(--glory);
  box-shadow: inset 3px 0 0 var(--glory), 0 6px 22px #c2354a22;
  background: linear-gradient(180deg, #14233f, var(--ink-2));
}
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem; }
.card-status {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--paper-dim); white-space: nowrap;
}
.card.block-found .card-status { color: var(--glory); }
.card-addr {
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500; line-height: 1.3;
  margin: 0; word-break: break-all; color: var(--paper);
}
.card-seal {
  flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 0.44rem; font-weight: 600; color: var(--glory);
  border: 1px solid var(--glory); box-shadow: inset 0 0 0 2px var(--ink-2), inset 0 0 0 3px var(--glory-soft);
}
.card-metrics { display: flex; gap: 1.2rem; margin: 0.2rem 0 0; }
.card-metrics dt {
  font-family: var(--font-mono); font-size: 0.5rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--paper-dim); margin: 0 0 0.04rem;
}
.card-metrics dd { margin: 0; }
.metric-big { font-family: var(--font-mono); font-size: 1.0rem; font-weight: 500; line-height: 1; color: var(--paper); }
.card.block-found .metric-big { color: var(--glory); }
.metric-sub { font-family: var(--font-mono); font-size: 0.85rem; }

.hashes { width: 100%; border-collapse: collapse; margin: 0.2rem 0 0; font-family: var(--font-mono); font-size: 0.63rem; }
.hashes th {
  text-align: left; font-weight: 500; color: var(--brass);
  font-size: 0.49rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0 0.4rem 0.14rem 0; border-bottom: 1px solid var(--brass-line);
}
.hashes td { padding: 0.07rem 0.35rem 0.07rem 0; border-bottom: 1px solid #ffffff0d; color: var(--paper); white-space: nowrap; }
.hashes tr:last-child td { border-bottom: 0; }
.card-updated { font-family: var(--font-mono); font-size: 0.56rem; color: var(--paper-dim); margin: 0.2rem 0 0; }

.card-error {
  margin: 0.6rem 0 0; padding: 0.6rem 0.7rem; color: var(--rust);
  font-family: var(--font-mono); font-size: 0.68rem; line-height: 1.45;
  border: 1px dashed #d08c5a66; background: #d08c5a0f; word-break: break-word;
}

@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---- Responsive: keep dense, degrade gracefully ------------------ */
@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cert-fields { margin-left: 0; }
}
@media (max-width: 720px) {
  .topbar { flex-direction: column; align-items: flex-start; }
  .ledger { flex-wrap: wrap; }
  .cards { grid-template-columns: 1fr; }
  .cert-link, .cert-awaiting, .cert-fields { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .wordmark, .certificate { animation: none; }
  .card { transition: none; }
}