/* Door Ledger reader. A quiet ledger sheet: off-white paper, ink hierarchy, thin rules,
   one green for live infrastructure, one brown for an open halt. */
:root {
  --paper: #fbfaf7;
  --sheet: #fefdfa;
  --ink: #151515;
  --graphite: #424242;
  --steel: #6a6969;
  --rule: #dcdcdc;
  --edge: #b9b8b5;
  --control: #8a8988;
  --ice: #f0f8f9;
  --green: #29735c;
  --brown: #7b5953;
  --focus: #1f5fbf;
  --skeleton: #eeedea;
  --ink-hover: #2b2b2b;
  --on-brown: #ffffff;
  --scrim: rgba(21, 21, 21, 0.35);
  --display: "Manrope", "IBM Plex Sans", system-ui, sans-serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --gutter: 16px;
}
@media (min-width: 720px) { :root { --gutter: 32px; } }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.5 var(--sans);
  font-variant-numeric: tabular-nums;
}
a { color: var(--ink); text-decoration-color: var(--edge); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--ink); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--sheet); padding: 8px 12px; }
.skip:focus { left: 8px; z-index: 10; }
.label, .hint, .fine { color: var(--steel); }
.label { font: 500 13px/1.2 var(--mono); letter-spacing: 0.02em; text-transform: uppercase; margin: 0 0 8px; }
.hint { font-size: 14px; margin: 4px 0 0; max-width: 66ch; }

/* masthead */
.masthead { border-bottom: 1px solid var(--rule); background: var(--sheet); }
.masthead-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; min-height: 56px; }
.wordmark { margin: 0; font: 500 18px/1 var(--display); display: flex; align-items: center; gap: 10px; }
.mark { width: 14px; height: 18px; border: 1.5px solid var(--ink); position: relative; }
.mark::after { content: ""; position: absolute; left: 3px; right: 3px; top: 5px; height: 6px; border-top: 1.5px solid var(--green); border-bottom: 1.5px solid var(--green); }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav a { font: 500 14px/1.5 var(--sans); text-decoration: none; padding: 4px 8px; border-radius: 4px; }
nav a:hover { background: var(--ice); }
.chainline { margin: 0 0 0 auto; font: 400 13px/1.3 var(--mono); color: var(--graphite); display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--control); flex: none; }
.dot.live { background: var(--green); }
.dot.past { background: var(--brown); }

/* intro */
.intro { padding-top: 48px; padding-bottom: 24px; }
h1 { font: 400 clamp(30px, 5vw, 47px)/1.15 var(--display); margin: 0 0 16px; max-width: 22ch; letter-spacing: -0.01em; }
.lede { font-size: 18px; color: var(--graphite); max-width: 68ch; margin: 0 0 32px; }
.summary { display: flex; flex-wrap: wrap; gap: 0; margin: 0 0 24px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule); }
.summary div { padding: 12px 24px 12px 0; margin-right: 24px; }
.summary dt { font: 500 12px/1.2 var(--mono); text-transform: uppercase; letter-spacing: 0.02em; color: var(--steel); }
.summary dd { margin: 4px 0 0; font: 500 16px/1.4 var(--sans); }
.controls { display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: center; }

.switch { display: inline-flex; align-items: center; gap: 10px; font-weight: 500; cursor: pointer; min-height: 44px; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch .track { width: 36px; height: 20px; border: 1px solid var(--ink); border-radius: 10px; position: relative; background: var(--sheet); flex: none; }
.switch .track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 12px; height: 12px; border-radius: 50%; background: var(--ink); transition: left 0.15s ease; }
.switch input:checked + .track { background: var(--ink); }
.switch input:checked + .track::after { left: 19px; background: var(--sheet); }
.switch input:focus-visible + .track { outline: 2px solid var(--focus); outline-offset: 2px; }

.asof { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.asof label { font-size: 14px; color: var(--graphite); }
input, select { font: 400 15px/1.4 var(--sans); color: var(--ink); background: var(--sheet); border: 1px solid var(--control); border-radius: 0; padding: 8px 10px; min-height: 40px; }
#asof-input { width: 9.5em; font-family: var(--mono); }
.btn { font: 600 14px/1.5 var(--sans); background: var(--ink); color: var(--sheet); border: 1px solid var(--ink); border-radius: 2px; padding: 8px 16px; min-height: 40px; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn:hover { background: var(--ink-hover); }
.btn.ghost:hover { background: var(--ice); }
.trust-banner { margin: 16px auto 0; padding: 12px var(--gutter); border: 2px solid var(--brown); background: var(--sheet); color: var(--ink); font-weight: 500; }
.banner { margin: 16px 0 0; padding: 10px 12px; border: 1px solid var(--brown); color: var(--ink); background: var(--sheet); font-size: 14px; }

/* blocks */
.block { padding-top: 40px; padding-bottom: 8px; }
.block-head { border-top: 1px solid var(--ink); padding-top: 16px; margin-bottom: 16px; }
h2 { font: 400 clamp(22px, 3vw, 32px)/1.25 var(--display); margin: 0; }
.table-wrap { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; overflow-x: auto; padding: 4px 8px; }
table.ledger { width: 100%; border-collapse: collapse; font-size: 14px; }
.ledger th { text-align: left; font: 500 12px/1.2 var(--mono); text-transform: uppercase; letter-spacing: 0.02em; color: var(--steel); padding: 12px 16px; border-bottom: 1px solid var(--rule); white-space: nowrap; }
.ledger td { padding: 12px 16px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.ledger tbody tr:last-child td { border-bottom: 0; }
.ledger tbody tr.row { cursor: pointer; }
.ledger tbody tr.row:hover { background: var(--ice); }
.ledger .num, .ledger .addr { font-family: var(--mono); font-size: 13px; }
.ledger .empty td { color: var(--graphite); padding: 20px 16px; }
.sub { display: block; color: var(--steel); font-size: 12px; margin-top: 2px; }
.tag { display: inline-block; font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.04em; padding: 4px 6px; border-radius: 2px; border: 1px solid currentColor; white-space: nowrap; }
.tag.open { background: var(--brown); border-color: var(--brown); color: var(--on-brown); }
.tag.ended { color: var(--green); }
.tag.locked { color: var(--ink); }
.tag.spoof { color: var(--brown); border-style: dashed; }
.tag.silent { color: var(--graphite); border-style: dashed; }
.tag.live { color: var(--green); }
tr.spoofed td { color: var(--graphite); }
.who { display: inline-flex; gap: 4px; flex-wrap: wrap; }
.who-list { display: flex; flex-direction: column; gap: 2px; }
.who-item { white-space: nowrap; }

.skeleton td { padding: 16px; }
.skeleton span { display: block; height: 12px; margin: 8px 0; background: var(--skeleton); border-radius: 2px; animation: pulse 1.4s ease-in-out infinite; }
.skeleton span:nth-child(2) { width: 82%; }
.skeleton span:nth-child(3) { width: 64%; }
@keyframes pulse { 50% { opacity: 0.45; } }
@media (prefers-reduced-motion: reduce) { .skeleton span { animation: none; } .switch .track::after { transition: none; } }

.filters { display: flex; flex-wrap: wrap; gap: 12px 16px; margin-bottom: 16px; }
.filters label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--graphite); }
.pager { display: flex; align-items: center; gap: 16px; padding: 12px 0; }

/* verify */
.repro { display: grid; gap: 16px; }
@media (min-width: 900px) { .repro { grid-template-columns: 1fr 1fr; } .repro .curl { grid-column: 1 / -1; } }
.repro-item { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; padding: 16px; display: flex; flex-direction: column; gap: 8px; }
pre { margin: 0; font: 400 12.5px/1.55 var(--mono); white-space: pre-wrap; word-break: break-all; color: var(--ink); background: var(--ice); padding: 12px; border-radius: 4px; }
.copy { align-self: flex-start; }
.curl summary { cursor: pointer; font-weight: 500; padding: 8px 0; }
.curl pre + pre { margin-top: 8px; }
.facts { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 8px; font-size: 14px; }
.facts .label { display: inline; margin-right: 8px; }
.facts code { font: 400 13px/1.4 var(--mono); background: var(--ice); padding: 1px 4px; }

/* detail */
dialog { border: 1px solid var(--ink); border-radius: 8px; padding: 24px; width: min(760px, calc(100vw - 32px)); max-height: calc(100vh - 48px); background: var(--sheet); color: var(--ink); }
dialog::backdrop { background: var(--scrim); }
.detail-close { float: right; margin: 0 0 8px 8px; }
dialog h2 { font-size: 24px; margin-bottom: 16px; }
.meta { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; font-size: 14px; margin: 0 0 16px; }
.meta dt { color: var(--steel); font: 500 12px/1.6 var(--mono); text-transform: uppercase; }
.meta dd { margin: 0; overflow-wrap: anywhere; }

/* footer */
.foot { margin-top: 56px; border-top: 1px solid var(--rule); background: var(--sheet); padding: 24px 0 40px; font-size: 14px; color: var(--graphite); }
.foot-row p { margin: 0 0 8px; max-width: 70ch; }
.foot-links { display: flex; gap: 8px; }
.foot-links a { display: inline-flex; align-items: center; min-height: 32px; padding: 0 8px; margin-left: -8px; }
.fine { font-size: 13px; }

/* narrow screens: tables become stacked records */
@media (max-width: 719px) {
  .chainline { margin-left: 0; width: 100%; }
  nav a { min-height: 44px; display: inline-flex; align-items: center; }
  .btn, input, select { min-height: 44px; }
  .table-wrap { border: 0; background: transparent; overflow: visible; padding: 0; }
  .ledger thead { position: absolute; left: -9999px; }
  .ledger, .ledger tbody, .ledger tr, .ledger td { display: block; width: 100%; }
  .ledger tbody tr { background: var(--sheet); border: 1px solid var(--rule); border-radius: 8px; margin-bottom: 12px; padding: 8px 0; }
  .ledger td { border: 0; padding: 6px 16px; display: grid; grid-template-columns: 9.5em 1fr; gap: 8px; }
  .ledger td::before { content: attr(data-label); font: 500 11px/1.6 var(--mono); text-transform: uppercase; color: var(--steel); }
  .ledger .empty td, .skeleton td { display: block; }
  .ledger .empty td::before, .skeleton td::before { content: none; }
  .summary div { padding-right: 0; margin-right: 24px; }
}