:root {
  --bg: #14110e;
  --bg-2: #1c1814;
  --ink: #f3eee4;
  --muted: #b7aa98;
  --dim: #8a7d6c;
  --line: #3a322a;
  --amber: #e2a54a;
  --amber-dim: #8a6230;
  --ticket: #f7f1e4;
  --ticket-ink: #1c1712;
  --ticket-mute: #6a5e4e;
  --stamp: #c45c3e;
  --ok: #8faf78;
  --bad: #d07258;
  --sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", ui-sans-serif, system-ui, sans-serif;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
  --page: min(42rem, calc(100vw - 2.5rem));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font: 16px/1.7 var(--sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea { font: inherit; color: inherit; }
a { color: var(--amber); text-underline-offset: 0.2em; }
a:hover { color: var(--ink); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 20;
  padding: 8px 12px;
  background: var(--amber);
  color: var(--bg);
  transform: translateY(-160%);
}
.skip:focus { transform: none; }

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 10px 4vw;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.home {
  justify-self: start;
  color: var(--muted);
  font: 700 12px/1 var(--mono);
  letter-spacing: 0.08em;
  text-decoration: none;
}
.home:hover { color: var(--ink); }
.clock-wrap {
  margin: 0;
  display: grid;
  justify-items: center;
  gap: 2px;
}
.clock-label {
  color: var(--dim);
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.14em;
}
#clock {
  font: 700 28px/1 var(--mono);
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}
.clock-actions {
  justify-self: end;
  display: flex;
  gap: 8px;
}
.clock-actions button,
.moves button,
.impls button,
#notes-form button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
.clock-actions button:hover,
.moves button:hover,
.impls button:hover,
#notes-form button:hover {
  border-color: var(--amber);
  color: var(--amber);
}
.top.is-running #clock { color: var(--ink); }
.top.is-over #clock { color: var(--bad); }

main { width: var(--page); margin: 0 auto; padding: 3.5rem 0 5rem; }

.kicker {
  margin: 0 0 12px;
  color: var(--amber);
  font: 700 11px/1.4 var(--mono);
  letter-spacing: 0.12em;
}
.hero h1,
.approval h2,
.sit h2,
.lab h2,
.after h2,
.diff h2 {
  margin: 0 0 18px;
  font: 700 clamp(28px, 6vw, 44px)/1.2 var(--serif);
  letter-spacing: -0.03em;
  text-wrap: balance;
}
.lede,
.approval > p,
.sit > p,
.lab > p,
.after-note,
.diff > p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
  text-wrap: pretty;
}
.hero-links,
.lab-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  margin: 28px 0 0;
}
.hero { padding-bottom: 3.2rem; border-bottom: 1px solid var(--line); }

.desk { padding: 3.2rem 0; }
.ticket {
  position: relative;
  padding: 32px 28px 28px;
  color: var(--ticket-ink);
  background: var(--ticket);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.38);
}
.ticket::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 16px;
  background: radial-gradient(circle at 8px 8px, var(--bg) 8px, transparent 8.5px) 0 0 / 16px 16px;
}
.stamp {
  position: absolute;
  top: 28px;
  right: 20px;
  width: 84px;
  height: 84px;
  border: 3px solid var(--stamp);
  border-radius: 50%;
  color: var(--stamp);
  display: grid;
  place-items: center;
  font: 700 15px/1 var(--mono);
  letter-spacing: 0.12em;
  transform: rotate(14deg);
  opacity: 0.88;
}
.ticket-meta {
  margin: 0 0 8px;
  color: var(--ticket-mute);
  font: 700 11px/1.3 var(--mono);
  letter-spacing: 0.14em;
}
.ticket h2 {
  margin: 0 0 18px;
  font: 700 34px/1 var(--mono);
  letter-spacing: 0.04em;
}
.ticket-fields {
  margin: 0 0 16px;
  display: grid;
  gap: 10px;
}
.ticket-fields div { display: grid; grid-template-columns: 7.5rem 1fr; gap: 8px; }
.ticket-fields dt {
  color: var(--ticket-mute);
  font: 700 11px/1.6 var(--mono);
}
.ticket-fields dd { margin: 0; }
.ticket-body { margin: 0 0 20px; line-height: 1.7; }
.ticket code, .approval code, .sit code, .lab code {
  font-family: var(--mono);
  font-size: 0.92em;
}
.fault {
  margin: 0 0 18px;
  padding: 12px 0 0;
  border: 0;
  border-top: 1px dashed #d2c6b0;
}
.fault legend {
  padding: 0 8px 0 0;
  color: var(--ticket-mute);
  font: 700 11px/1.4 var(--mono);
  letter-spacing: 0.08em;
}
.fault label {
  display: block;
  margin-top: 8px;
  cursor: pointer;
}
.fault input { margin-right: 8px; accent-color: var(--stamp); }
.world {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  padding-top: 16px;
  border-top: 1px solid #d2c6b0;
  font: 13px/1.4 var(--mono);
}
.world span { display: block; color: var(--ticket-mute); font-size: 10px; letter-spacing: 0.08em; }
.world b { font-weight: 700; }
.world.is-bad b { color: var(--stamp); }
.world.is-ok b { color: #3f6d38; }

.moves { margin-top: 22px; display: grid; gap: 8px; }
.moves-label {
  margin: 0 0 4px;
  color: var(--dim);
  font: 700 11px/1.4 var(--mono);
  letter-spacing: 0.12em;
}
.moves button { text-align: left; min-height: 48px; padding: 12px 16px; }
.moves button[disabled] { opacity: 0.45; cursor: not-allowed; }
.moves button.is-picked { border-color: var(--amber); color: var(--amber); }
.moves button.is-bad { border-color: var(--bad); color: var(--bad); }
.moves button.is-ok { border-color: var(--ok); color: var(--ok); }

.trace {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font: 13px/1.55 var(--mono);
  color: var(--muted);
}
.trace li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 12px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
}
.trace li:first-child { border-top: 0; }
.trace .seq { color: var(--dim); }
.verdict {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--amber);
  color: var(--ink);
  background: var(--bg-2);
}
.verdict.is-bad { border-color: var(--bad); }
.verdict.is-ok { border-color: var(--ok); }

.approval,
.sit,
.lab,
.after,
.diff { padding: 3rem 0 0; border-top: 1px solid var(--line); margin-top: 2.5rem; }

.impls { display: grid; gap: 8px; margin: 18px 0; }
.impls button { text-align: left; min-height: 48px; padding: 12px 16px; }
.impls button.is-picked { border-color: var(--amber); }
.impl-out {
  margin: 0;
  padding: 14px 16px;
  background: var(--bg-2);
  border-left: 3px solid var(--amber);
}
.impl-out.is-bad { border-color: var(--bad); }
.impl-out.is-ok { border-color: var(--ok); }

.slices {
  margin: 8px 0 24px;
  padding: 0;
  list-style: none;
}
.slices li {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.slices time {
  color: var(--amber);
  font: 700 12px/1.6 var(--mono);
}
.slices h3 { margin: 0 0 6px; font-size: 18px; }
.slices p { margin: 0; color: var(--muted); }
.sit-stack { color: var(--dim); font-size: 14px; }

.run {
  margin: 0 0 18px;
  padding: 16px 18px;
  overflow: auto;
  color: var(--ink);
  background: #0e0c0a;
  border: 1px solid var(--line);
  font: 13px/1.55 var(--mono);
}
.lab-facts {
  margin: 0 0 18px;
  padding-left: 1.1rem;
  color: var(--muted);
}
.lab-facts li { margin: 8px 0; }

#notes-form { display: grid; gap: 16px; }
#notes-form label { display: grid; gap: 8px; color: var(--ink); font-weight: 650; }
#notes-form textarea {
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--ink);
  resize: vertical;
}
#notes-form button { justify-self: start; min-width: 8rem; background: var(--amber); color: var(--bg); border-color: var(--amber); font-weight: 700; }
#notes-form button:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.notes-status { margin: 0; color: var(--ok); font-size: 14px; }
.after-note { margin-top: 22px; }

.diff ul {
  margin: 0 0 18px;
  padding-left: 1.1rem;
  color: var(--muted);
}
.diff li { margin: 8px 0; }

.foot {
  width: var(--page);
  margin: 0 auto;
  padding: 28px 0 48px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 13px;
}
.foot strong { color: var(--ink); margin-right: 12px; }
.foot a { font: 700 11px/1 var(--mono); letter-spacing: 0.08em; text-decoration: none; }

@media (max-width: 720px) {
  :root { --page: calc(100vw - 1.6rem); }
  .top { grid-template-columns: 1fr auto; }
  .home { display: none; }
  .clock-actions { grid-column: 2; }
  .ticket { padding: 36px 18px 20px; }
  .stamp { width: 68px; height: 68px; font-size: 12px; top: 20px; right: 12px; }
  .ticket-fields div { grid-template-columns: 1fr; gap: 2px; }
  .world { grid-template-columns: 1fr; }
  .slices li { grid-template-columns: 1fr; gap: 6px; }
  .foot { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .stamp { transform: none; }
}

@media print {
  .top, .clock-actions, .skip, .moves, .impls, #notes-form button { display: none !important; }
  body { background: #fff; color: #111; }
  .ticket { box-shadow: none; border: 1px solid #ccc; }
  a { color: inherit; }
}