:root {
  --acetate: #f1eee6;
  --leaf: #fbfaf5;
  --ink: #1a1a18;
  --ink-2: #4a4842;
  --hairline: rgba(26, 26, 24, 0.16);
  --yellow: #f2c230;
  --orange: #e0602a;
  --grass: #46a352;
  --teal: #33a1a8;
  --violet: #6e4bc2;
  --ultramarine: #2e46b0;
  --vermilion: #d23a1e;
  --head: "Archivo Narrow", "Arial Narrow", sans-serif;
  --prose: "EB Garamond", Garamond, Georgia, serif;
  --mono: "Red Hat Mono", ui-monospace, monospace;
  --hinge: 90ms steps(2, end);
  color-scheme: light;
}

.hue-yellow { --hue: var(--yellow); --on-hue: var(--ink); }
.hue-orange { --hue: var(--orange); --on-hue: var(--ink); }
.hue-grass { --hue: var(--grass); --on-hue: var(--ink); }
.hue-teal { --hue: var(--teal); --on-hue: var(--ink); }
.hue-violet { --hue: var(--violet); --on-hue: #fff; }

* { box-sizing: border-box; }
html { scrollbar-color: var(--ink-2) var(--acetate); }
body {
  margin: 0;
  background: var(--acetate);
  color: var(--ink);
  font: 18px/1.45 var(--prose);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--yellow); color: var(--ink); }
:focus-visible { outline: 2px solid var(--ultramarine); outline-offset: 2px; }
a { color: var(--ultramarine); text-underline-offset: 3px; text-decoration-thickness: 1px; }
h1, h2, h3 { font-family: var(--head); font-weight: 700; margin: 0; letter-spacing: 0.01em; text-wrap: balance; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.icon { width: 0.8em; height: 0.8em; vertical-align: -0.05em; }

/* Controls */
.btn {
  font: 600 15px/1 var(--head);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  height: 40px;
  padding: 0 16px;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background var(--hinge), color var(--hinge);
}
.btn:hover { background: var(--ink); color: var(--leaf); }
.btn.primary { background: var(--yellow); }
.btn.primary:hover { background: var(--ink); color: var(--yellow); }
.btn:disabled { opacity: 0.55; cursor: progress; background: transparent; color: var(--ink); }
input[type="search"], input[type="email"], input[type="password"] {
  font: 17px var(--prose);
  height: 40px;
  width: 100%;
  padding: 0 12px;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  background: var(--leaf);
  color: var(--ink);
  caret-color: var(--ultramarine);
}
input::placeholder { color: var(--ink-2); }
input:focus-visible { outline: none; border-color: var(--ultramarine); box-shadow: 0 0 0 2px var(--ultramarine); }

/* Top bar */
.top {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 24px;
  background: var(--acetate);
  border-bottom: 1.5px solid var(--ink);
}
.wordmark {
  font: 700 26px/1 var(--head);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  margin-right: 8px;
}
.status { display: flex; gap: 0; margin: 0; }
.status div { padding: 0 18px; border-left: 1px solid var(--hairline); }
.status dt { font: 600 12px/1.3 var(--head); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.status dd { margin: 0; font: 14px/1.4 var(--mono); }
.running { color: var(--vermilion); }
.search { flex: 1; max-width: 420px; margin-left: auto; }

/* Shell: filters | board | fore-edge rail */
.shell {
  display: grid;
  grid-template-columns: 260px 1fr 52px;
  min-height: calc(100vh - 66px);
}
.filters { padding: 24px; border-right: 1.5px solid var(--ink); }
.filters summary { display: none; }
.filters h3 { font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; margin: 22px 0 10px; }
.filters h3:first-of-type { margin-top: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font: 500 15px/1 var(--head);
  letter-spacing: 0.02em;
  padding: 7px 10px;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  color: var(--ink);
  text-decoration: none;
  transition: background var(--hinge), color var(--hinge);
}
.chip:hover { background: var(--leaf); }
.chip[aria-current] { background: var(--ink); color: var(--leaf); }
.log { list-style: none; padding: 0; margin: 0; font: 12px/1.6 var(--mono); color: var(--ink-2); overflow-wrap: anywhere; }

.board { background: var(--hue); padding: 28px 32px 64px; min-width: 0; }
.board-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 20px; color: var(--on-hue); }
.board-head h1 { font-size: 34px; text-transform: uppercase; letter-spacing: 0.04em; }
.board-head p { margin: 0; font: 14px var(--mono); }

/* Leaves: acetate sheets hinged above the section board */
.leaf {
  position: relative;
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 20px;
  max-width: 920px;
  margin-bottom: 14px;
  padding: 20px 28px 18px 44px;
  background: var(--leaf);
  border-radius: 2px;
  box-shadow: 0 1px 0 rgba(26, 26, 24, 0.28), 0 4px 10px rgba(26, 26, 24, 0.1);
}
/* Two punch holes at the bound edge show the board through. */
.leaf::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 24px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--hue);
  box-shadow: inset 0 1px 2px rgba(26, 26, 24, 0.35), 0 40px 0 var(--hue);
}
.leaf.pending { background: rgba(251, 250, 245, 0.72); box-shadow: none; outline: 1.5px dashed var(--ink); outline-offset: -1.5px; }
.leaf.failed { background: rgba(251, 250, 245, 0.72); box-shadow: none; }
.score {
  font: 700 46px/0.9 var(--head);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  padding-top: 2px;
}
.pending .score, .failed .score { color: var(--ink-2); }
.leaf h2 { font-size: 23px; line-height: 1.15; }
.leaf h2 a { color: var(--ink); text-decoration: none; }
.leaf h2 a:hover { text-decoration: underline; }
.tagline { font: 400 italic 18px var(--prose); color: var(--ink-2); letter-spacing: 0; }
.verdict { margin: 6px 0 8px; max-width: 68ch; }
.muted { color: var(--ink-2); }
.meta { margin: 0; font: 13px/1.5 var(--mono); color: var(--ink-2); }
.links { display: flex; gap: 18px; margin: 10px 0 0; font: 600 14px var(--head); letter-spacing: 0.06em; text-transform: uppercase; }
.links:empty { display: none; }

details summary { cursor: pointer; }
.leaf details { margin-top: 12px; border-top: 1px solid var(--hairline); padding-top: 10px; }
.leaf summary {
  font: 600 15px var(--head);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  list-style: none;
  width: fit-content;
}
.leaf summary::-webkit-details-marker { display: none; }
.leaf summary::before { content: "+"; display: inline-block; width: 1.1em; font-family: var(--mono); }
.leaf details[open] summary::before { content: "−"; }
.leaf dl { margin: 12px 0 0; display: grid; gap: 10px; max-width: 68ch; }
.leaf dl div { display: grid; grid-template-columns: 150px 1fr; gap: 16px; }
.leaf dt { font: 600 14px/1.7 var(--head); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); }
.leaf dd { margin: 0; }
.leaf .copy dd { background: var(--yellow); padding: 4px 10px; margin: -4px 0 0 -10px; }
.errata { margin: 12px 0 0; padding: 8px 12px; background: #fbe4dd; color: #7d1f0f; max-width: 68ch; }
.errata strong { font: 700 13px var(--head); letter-spacing: 0.1em; text-transform: uppercase; background: var(--vermilion); color: #fff; padding: 2px 6px; margin-right: 6px; }

.empty { max-width: 640px; padding: 28px 32px; background: var(--leaf); }
.empty h2 { font-size: 24px; margin-bottom: 6px; }
.empty p { margin: 0; }

/* Fore-edge tab rail: one tab per source, height follows its extent */
.rail {
  position: sticky;
  top: 66px;
  height: calc(100vh - 66px);
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 0;
  background: var(--acetate);
}
.tab {
  flex: 1 1 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 0;
  margin-left: 10px;
  writing-mode: vertical-rl;
  background: var(--hue);
  color: var(--on-hue);
  border-radius: 0 10px 10px 0;
  font: 600 14px/1 var(--head);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: inset 2px 0 0 rgba(26, 26, 24, 0.18);
  transition: margin var(--hinge);
}
.tab .n { font: 500 12px var(--mono); letter-spacing: 0; }
.tab:hover { margin-left: 4px; }
.tab[aria-current] { margin-left: 0; box-shadow: none; }

/* Sign in */
.login { min-height: 100vh; display: grid; place-items: center; background: var(--yellow); padding: 24px; }
.login .leaf { display: block; width: 100%; max-width: 440px; padding: 32px 36px 28px 52px; }
.login h1 { font-size: 30px; letter-spacing: 0.18em; text-transform: uppercase; }
.login label { display: block; margin-top: 16px; font: 600 14px var(--head); letter-spacing: 0.08em; text-transform: uppercase; }
.login label input { margin-top: 6px; }
.login .actions { display: flex; gap: 10px; margin: 22px 0 14px; }

@media (max-width: 900px) {
  .top { flex-wrap: wrap; gap: 10px 8px; padding: 12px 16px; position: static; }
  .status { display: none; }
  .search { order: 3; flex-basis: 100%; max-width: none; }
  .wordmark { margin-right: auto; font-size: 19px; letter-spacing: 0.12em; }
  .top .btn { height: 36px; padding: 0 10px; font-size: 13px; }
  .shell { grid-template-columns: 1fr; }
  .rail { position: static; height: auto; flex-direction: row; order: -1; padding: 0 0 0 0; gap: 2px; overflow-x: auto; scrollbar-width: none; }
  .tab { writing-mode: horizontal-tb; flex-direction: row; min-width: max-content; margin: 0 0 8px; padding: 10px 12px; border-radius: 0 0 8px 8px; }
  .tab:hover { margin: 0 0 4px; }
  .tab[aria-current] { margin: 0; }
  .filters { border-right: 0; border-bottom: 1.5px solid var(--ink); padding: 0 16px; }
  .filters summary { display: block; padding: 12px 0; font: 600 15px var(--head); letter-spacing: 0.1em; text-transform: uppercase; }
  .filters[open] { padding-bottom: 16px; }
  .board { padding: 20px 12px 48px; }
  .board-head { flex-wrap: wrap; gap: 4px 12px; padding: 0 4px; }
  .board-head h1 { font-size: 26px; }
  .leaf { grid-template-columns: 1fr; gap: 6px; padding: 16px 16px 14px 36px; }
  .leaf::before { left: 12px; top: 20px; }
  .score { font-size: 34px; }
  .leaf dl div { grid-template-columns: 1fr; gap: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}