/* ZETA — the race, light edition. OPUS gold vs SOL teal, flanking the
   critical line; referee in red; warm paper everywhere. */
:root {
  --page: #e7e3d8;
  --bg: #f7f4ec;
  --panel: #fbf9f4;
  --card: #ffffff;
  --ink: #211f1a;
  --body: #3c3a33;
  --dim: #6e6a5f;
  --faint: #a09b8d;
  --border: #ddd7c8;
  --border-soft: #e8e3d6;
  --line: #a67c00;
  --line-soft: rgba(166, 124, 0, 0.45);
  --line-wash: rgba(166, 124, 0, 0.08);
  --opus: #8a6500;
  --opus-wash: rgba(138, 101, 0, 0.08);
  --sol: #1f6079;
  --sol-wash: rgba(31, 96, 121, 0.07);
  --ref: #a03428;
  --ref-wash: rgba(160, 52, 40, 0.07);
  --red: #b3362c;
  --code-bg: #f0ede3;
  --mono: "Consolas", "Cascadia Mono", monospace;
  --serif: Georgia, "Times New Roman", serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), rgba(166, 124, 0, 0.12) calc(50% - 1px), rgba(166, 124, 0, 0.12) 50%, transparent 50%),
    var(--page);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#app {
  width: min(1440px, 98vw);
  height: min(960px, 97vh);
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--line);
  box-shadow: 0 24px 70px rgba(60, 50, 20, 0.25);
  position: relative;
  overflow: hidden;
}

/* ---------- header ---------- */
header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 22px 11px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex: 0 0 auto;
}
.brand { display: flex; align-items: center; gap: 12px; }
#logo { height: 44px; width: 44px; object-fit: cover; border: 1px solid var(--border); display: block; }
.brand-text h1 { font-family: var(--serif); font-size: 17px; letter-spacing: 2.5px; font-weight: 700; white-space: nowrap; }
.brand-text .sub { color: var(--dim); font-size: 11px; letter-spacing: 2px; }
.statement { flex: 1; min-width: 0; }
.hyp { font-family: var(--serif); font-size: 15.5px; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hyp-note { color: var(--dim); font-size: 12px; }
.vc { color: var(--opus); }
.vs { color: var(--sol); }
.hud { display: flex; align-items: center; gap: 18px; }
.stat { display: flex; flex-direction: column; align-items: flex-end; }
.stat .v { font-size: 18px; font-weight: 600; }
.stat .k { font-size: 10px; color: var(--dim); letter-spacing: 1px; }
.badge {
  padding: 7px 13px;
  font-size: 12px;
  letter-spacing: 2px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--dim);
}
.badge.running, .badge.stopping, .badge.demo { color: var(--opus); border-color: var(--line-soft); background: var(--line-wash); animation: pulse 2.4s infinite; }
.badge.done { color: var(--opus); border-color: var(--line-soft); }
.badge.nokey, .badge.autherror, .badge.nocredits { color: #fff; border-color: var(--red); background: var(--red); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }

/* ---------- race band ---------- */
#raceband {
  padding: 10px 22px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex: 0 0 auto;
}
.race-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 7px; }
.pb-title { font-size: 10.5px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--dim); }
.race-clock { font-size: 12px; color: var(--dim); }
.lane { display: flex; align-items: center; gap: 12px; margin-bottom: 7px; }
.lane-name { flex: 0 0 108px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-align: right; }
.lane .pbar { flex: 1; position: relative; height: 17px; border: 1px solid var(--border); background: var(--card); overflow: hidden; }
.pfill { position: absolute; top: 0; bottom: 0; left: 0; width: 0%; transition: width 0.6s ease; }
.pfill.opus { background: linear-gradient(180deg, #c39310, #a67c00); }
.pfill.sol { background: linear-gradient(180deg, #2e7d9c, #1f6079); }
.pmark { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--ink); opacity: 0.5; }
.pmark.m416 { left: 41.6%; }
.pmark.m672 { left: 67.2%; }
.lane-stats { flex: 0 0 190px; display: flex; justify-content: space-between; align-items: baseline; font-size: 12.5px; }
#label-opus { color: var(--opus); font-weight: 700; }
#label-sol { color: var(--sol); font-weight: 700; }
.ideas { font-size: 11px; color: var(--dim); border: 1px solid var(--border); background: var(--card); padding: 1px 7px; }
.pb-labels { position: relative; height: 15px; margin: 2px 0 0 120px; font-size: 11px; color: var(--dim); margin-right: 202px; }
.pl { position: absolute; top: 0; white-space: nowrap; }
.pl.l0 { left: 0; color: var(--faint); }
.pl.l416 { left: 41.6%; transform: translateX(-100%); padding-right: 6px; }
.pl.l672 { left: 67.2%; padding-left: 6px; }
.pl.l100 { right: 0; color: var(--faint); }
.pl.lit { color: var(--opus); font-weight: 700; }
.pb-foot { margin-top: 4px; font-size: 11px; color: var(--faint); font-style: italic; }

/* ---------- the strip: two panels flanking the line + rail ---------- */
main#strip { flex: 1; display: flex; min-height: 0; }
.panel { flex: 1.25 1 0; min-width: 0; display: flex; flex-direction: column; background: var(--bg); }
#notes-pane { flex: 0.85 1 0; min-width: 0; display: flex; flex-direction: column; background: var(--panel); border-left: 1px solid var(--border); overflow-y: auto; padding-bottom: 24px; }

#critline { flex: 0 0 auto; width: 2px; background: var(--line); position: relative; }
#critline.zerohit { animation: linehit 1.2s ease-out; }
@keyframes linehit {
  0% { box-shadow: 0 0 16px 3px var(--line-soft); }
  100% { box-shadow: 0 0 0 rgba(166,124,0,0); }
}
.critlabel {
  position: absolute; top: 12px; left: 50%;
  transform: translateX(-50%) rotate(90deg); transform-origin: center;
  white-space: nowrap; color: var(--line); font-size: 10px; letter-spacing: 3px; padding-left: 28px;
}

.pane-head {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 18px 8px;
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto; position: sticky; top: 0; background: inherit; z-index: 3;
}
.agent-chip {
  font-size: 11px; font-weight: 700; letter-spacing: 1.5px;
  color: #fff; padding: 3px 10px;
}
.vc-bg { background: var(--opus); }
.vs-bg { background: var(--sol); }
.pane-title { font-size: 12px; letter-spacing: 3px; font-weight: 600; }
.pane-sub { font-size: 10.5px; color: var(--dim); }
.pstatus { margin-left: auto; font-size: 10.5px; letter-spacing: 1px; color: var(--dim); text-transform: uppercase; }
.pstatus.running { color: var(--opus); }
#panel-sol .pstatus.running { color: var(--sol); }
.pstatus.err { color: var(--red); }
.head-links { margin-left: auto; font-size: 11.5px; }
.head-links a { color: var(--opus); text-decoration: none; }
.head-links a:hover { text-decoration: underline; }
.head-links .sep { color: var(--faint); margin: 0 5px; }

.focusline {
  padding: 6px 18px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--panel);
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  flex: 0 0 auto;
}
.focus-label { font-family: var(--mono); font-style: normal; color: var(--faint); font-size: 9.5px; letter-spacing: 2px; text-transform: uppercase; margin-right: 6px; }

/* ---------- feeds ---------- */
.feed {
  flex: 1; overflow-y: auto;
  padding: 13px 18px 18px;
  scrollbar-width: thin; scrollbar-color: var(--faint) transparent;
  font-size: 13.5px;
}
.ln { margin: 0 0 9px; white-space: pre-wrap; word-break: break-word; line-height: 1.6; color: var(--body); }
.ln .ts { color: var(--faint); font-size: 10px; margin-right: 8px; }
.ln.sys     { color: var(--dim); font-size: 12.5px; }
.ln.think   { color: var(--dim); font-style: italic; font-size: 12.5px; padding-left: 12px; border-left: 2px solid var(--border); }
.ln.think .tmark { font-style: normal; margin-right: 6px; }
.ln.say { color: var(--ink); background: var(--card); border: 1px solid var(--border-soft); padding: 9px 12px; }
#feed-opus .ln.say { border-left: 3px solid var(--opus); }
#feed-sol .ln.say { border-left: 3px solid var(--sol); }
.ln.referee {
  color: var(--ref);
  background: var(--ref-wash);
  border: 1px solid rgba(160, 52, 40, 0.3);
  padding: 8px 12px;
  font-size: 13px;
}
.ln.referee .rchip {
  font-size: 9.5px; font-weight: 700; letter-spacing: 1.5px;
  background: var(--ref); color: #fff; padding: 1px 7px; margin-right: 8px;
}
.ln.idea {
  color: var(--ink);
  border: 1px dashed var(--border);
  border-left: 3px solid var(--faint);
  background: var(--panel);
  padding: 8px 12px;
  font-size: 12.5px;
}
.ln.idea.promising { border-left-color: #3d7a4e; }
.ln.idea.dead-end { border-left-color: var(--faint); color: var(--dim); }
.ln.focus   { color: var(--opus); font-family: var(--serif); font-style: italic; font-size: 14px; }
#feed-sol .ln.focus { color: var(--sol); }
.ln.cmd     { color: var(--opus); }
#feed-sol .ln.cmd { color: var(--sol); }
.ln.cmd .prompt { font-weight: 700; }
.ln pre.code {
  margin-top: 6px;
  padding: 9px 12px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: #333127;
  font-size: 12px;
  line-height: 1.5;
  overflow: auto;
  max-height: 240px;
}
.ln.out     { color: var(--body); font-size: 12.5px; background: var(--code-bg); border: 1px dashed var(--border); padding: 7px 11px; }
.ln.out.err { color: var(--red); border-color: var(--red); }
.ln.zeros   { color: var(--opus); font-weight: 600; font-size: 13px; }
#feed-sol .ln.zeros { color: var(--sol); }
.ln.finding { color: var(--ink); }
.ln.finding .fp { color: var(--opus); }
.ln.error   { color: var(--red); }
.ln.checkpoint, .ln.final {
  color: var(--ink);
  border: 1px solid var(--border);
  border-left: 3px solid var(--line);
  padding: 11px 13px;
  background: var(--card);
  font-size: 12.5px;
}
.ln.final { border-left-width: 5px; }
.ln.milestone {
  color: var(--opus);
  border: 1px solid var(--line-soft);
  padding: 11px 13px;
  background: var(--line-wash);
  font-size: 13.5px;
  letter-spacing: 0.5px;
  font-weight: 600;
}
#feed-sol .ln.milestone { color: var(--sol); border-color: rgba(31, 96, 121, 0.4); background: var(--sol-wash); }
.ln.run-start { color: var(--opus); letter-spacing: 1.5px; border-top: 1px solid var(--border); padding-top: 11px; margin-top: 14px; font-size: 12.5px; font-weight: 600; }
#feed-sol .ln.run-start { color: var(--sol); }
.ln.run-end { color: var(--dim); letter-spacing: 1px; }

.busyline {
  display: none;
  flex: 0 0 auto;
  padding: 8px 18px;
  border-top: 1px solid var(--border);
  color: var(--dim);
  font-size: 12.5px;
  background: var(--panel);
}
.busyline.on { display: flex; align-items: center; gap: 8px; }
.busyline .busy-z { font-family: var(--serif); color: var(--line); font-size: 15px; }
#busy-opus.on .busy-text { color: var(--opus); }
#busy-sol.on .busy-text { color: var(--sol); }
.busyline .dots span {
  display: inline-block; width: 4px; height: 4px; border-radius: 50%;
  background: currentColor; margin-right: 3px; opacity: 0.25;
  animation: dot 1.2s infinite;
}
.busyline .dots span:nth-child(2) { animation-delay: 0.2s; }
.busyline .dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dot { 0%,100% { opacity: 0.25; } 40% { opacity: 1; } }

/* ---------- marginalia ---------- */
.card { margin: 12px 16px 0; border: 1px solid var(--border); background: var(--card); padding: 12px 14px; }
.card-title { font-size: 11px; letter-spacing: 2px; color: var(--dim); text-transform: uppercase; margin-bottom: 8px; font-weight: 600; }
.about p { font-size: 13px; line-height: 1.6; color: var(--body); margin-bottom: 8px; font-family: var(--serif); }
.about .honest { color: var(--dim); font-style: italic; margin-bottom: 0; font-size: 12px; }
.about .vc, .about .vs { font-weight: 700; }

.ledger-card canvas { width: 100%; height: 150px; display: block; background: var(--bg); border: 1px solid var(--border); }
.ledger-count { color: var(--ink); margin-left: 8px; text-transform: none; letter-spacing: 0; font-size: 12px; }
.ledger-range { display: flex; justify-content: space-between; color: var(--dim); font-size: 10.5px; margin-top: 5px; }
.ledger-range .vc, .ledger-range .vs { font-weight: 700; }

#findings { display: flex; flex-direction: column-reverse; }
.f-card {
  margin: 11px 16px 0;
  border: 1px solid var(--border);
  border-left: 3px solid var(--faint);
  background: var(--card);
  padding: 11px 13px;
  cursor: pointer;
  user-select: none;
}
.f-card:hover { border-color: var(--dim); }
.f-card.notable { border-left-color: var(--dim); }
.f-card.key { border-left-color: var(--line); }
.f-head { display: flex; align-items: baseline; gap: 8px; }
.f-chev { color: var(--faint); font-size: 10px; transition: transform 0.15s; }
.f-card.open .f-chev { transform: rotate(90deg); }
.f-title { font-family: var(--serif); font-size: 14.5px; flex: 1; color: var(--ink); }
.f-by { font-size: 9.5px; letter-spacing: 1px; font-weight: 700; }
.f-by.opus { color: var(--opus); }
.f-by.sol { color: var(--sol); }
.f-sig { font-size: 9.5px; letter-spacing: 1px; color: var(--dim); }
.f-card.key .f-sig { color: var(--opus); }
.f-detail { display: none; font-size: 13px; line-height: 1.62; color: var(--body); margin-top: 9px; }
.f-card.open .f-detail { display: block; }
.f-meta { display: none; margin-top: 7px; font-size: 10.5px; color: var(--faint); }
.f-card.open .f-meta { display: block; }

/* ---------- footer ---------- */
footer {
  display: flex;
  align-items: center;
  padding: 12px 22px;
  border-top: 1px solid var(--border);
  background: var(--panel);
  flex: 0 0 auto;
}
.foot-honest { color: var(--dim); font-size: 12.5px; }
.xlink {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.5px;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 8px 14px;
  margin-right: 10px;
}
.xlink:hover { border-color: var(--dim); }
.xlink svg { width: 13px; height: 13px; fill: currentColor; display: block; }
.powered {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 1px;
  padding: 8px 14px;
  cursor: pointer;
  max-width: 100%;
}
.powered:hover { border-color: var(--line); background: var(--line-wash); }
.powered #ticker { color: var(--opus); font-weight: 700; }
.powered .pow-label { white-space: nowrap; }
.powered .ca {
  font-size: 11.5px;
  letter-spacing: 0;
  color: var(--dim);
  border-left: 1px solid var(--border);
  padding-left: 12px;
  word-break: break-all;
  text-align: left;
}
.powered .copyhint {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--faint);
  border: 1px solid var(--border);
  padding: 2px 7px;
}
.powered:hover .copyhint { color: var(--opus); border-color: var(--line-soft); }

#toast {
  position: absolute;
  bottom: 70px; left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--bg);
  font-size: 13px;
  padding: 9px 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  z-index: 10;
}
#toast.show { opacity: 1; }

@media (max-width: 1000px) {
  html, body { height: auto; overflow: auto; }
  body { display: block; }
  #app { width: 100vw; height: auto; min-height: 100vh; border: 0; box-shadow: none; }
  header { flex-wrap: wrap; gap: 10px 16px; padding: 12px 14px 10px; }
  .brand { order: 1; }
  .hud { order: 2; margin-left: auto; gap: 12px; }
  .statement { order: 3; flex-basis: 100%; }
  .hyp { white-space: normal; font-size: 15px; }
  #raceband { padding: 10px 14px; }
  .lane-name { flex-basis: 84px; font-size: 10.5px; }
  .lane-stats { flex-basis: 128px; flex-direction: column; align-items: flex-end; gap: 2px; }
  .pb-labels { margin-left: 96px; margin-right: 140px; }
  .pl.l416, .pl.l672 { font-size: 10px; }
  .pl.l100 { display: none; }
  main#strip { flex-direction: column; }
  #critline { width: auto; height: 2px; flex: 0 0 2px; }
  .critlabel { display: none; }
  .panel { flex: none; }
  .feed { max-height: 52vh; padding: 12px 14px 16px; font-size: 13px; }
  #notes-pane { flex: none; border-left: 0; border-top: 1px solid var(--border); overflow: visible; }
  .card, .f-card { margin: 11px 14px 0; }
  footer { flex-wrap: wrap; gap: 10px; padding: 12px 14px; }
  .xlink { margin-left: 0; margin-right: 0; width: 100%; justify-content: center; }
  .powered { margin-left: 0; width: 100%; flex-wrap: wrap; justify-content: center; gap: 6px 10px; }
  .powered .ca { border-left: 0; padding-left: 0; flex-basis: 100%; text-align: center; }
}