:root {
  --paper: #f3eee2;
  --paper-2: #ebe3d1;
  --paper-3: #e2d8c2;
  --ink: #1d262b;
  --ink-2: #4a5553;
  --ink-3: #85897f;
  --rule: #c9bb9c;
  --vermilion: #e2492b;
  --vermilion-2: #b8361c;
  --teal: #1f5f6b;
  --sea: #3d8b8a;
  --grad: #1d3a5c;

  --f-display: 'Young Serif', 'Iowan Old Style', Georgia, serif;
  --f-ui: 'Barlow Semi Condensed', 'Avenir Next Condensed', 'Arial Narrow', sans-serif;
  --f-mono: 'Martian Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --side: 340px;
  --gap: 28px;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background:
    radial-gradient(1200px 700px at 12% -10%, #fbf8f1 0%, transparent 60%),
    radial-gradient(900px 600px at 110% 110%, #e8dfcb 0%, transparent 60%),
    var(--paper);
  color: var(--ink);
  font-family: var(--f-ui);
  font-size: 15px;
  line-height: 1.35;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Paper grain + faint survey graticule */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: 0.4;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .38 0 0 0 0 .28 0 0 0 .22 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(120, 100, 70, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 100, 70, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, transparent 30%, black 90%);
}

/* ---------- masthead ---------- */
.masthead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 20px var(--gap) 14px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
.masthead::after {
  content: '';
  position: absolute;
  left: var(--gap);
  right: var(--gap);
  bottom: -4px;
  border-bottom: 1px solid var(--rule);
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  font-family: var(--f-display);
  font-size: 30px;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  color: var(--paper);
  background: var(--vermilion);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 4px var(--vermilion);
  padding-top: 4px;
}
h1 {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(26px, 3vw, 38px);
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1;
}
h1 em { font-style: normal; color: var(--vermilion); }
.tagline {
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.plate-meta { display: flex; gap: 28px; margin: 0; }
.plate-meta div { display: flex; flex-direction: column; align-items: flex-end; }
.plate-meta dt, .block h2, .eyebrow, .slice-stats dt, .finish-stats dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.plate-meta dd { margin: 2px 0 0; font-family: var(--f-mono); font-size: 13px; }

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--side);
  gap: var(--gap);
  padding: 20px var(--gap) 12px;
  align-items: start;
  min-height: 0;
}

.plate { display: flex; flex-direction: column; align-items: center; min-width: 0; animation: rise 0.8s 0.08s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
.plate-frame {
  position: relative;
  width: min(100%, calc(100vh - 205px));
  min-width: 320px;
  aspect-ratio: 1;
  padding: 10px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow:
    inset 0 0 0 4px var(--paper),
    inset 0 0 0 5px var(--ink),
    0 1px 0 rgba(255, 255, 255, 0.6),
    0 24px 50px -28px rgba(60, 40, 20, 0.45);
}
.plate-frame canvas {
  position: absolute;
  inset: 10px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  display: block;
}
#overlay { pointer-events: none; }

.plate-caption {
  width: min(100%, calc(100vh - 205px));
  min-width: 320px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin: 10px 0 0;
  font-size: 13px;
  font-style: italic;
  color: var(--ink-2);
}
.legend { font-style: normal; display: flex; align-items: center; gap: 6px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-left: 8px; }
.sw-you { background: var(--vermilion); box-shadow: 0 0 0 2px #fff, 0 0 0 3px var(--vermilion); width: 8px; height: 8px; }
.sw-ghost { border: 1.5px dashed var(--ink); }
.sw-grad { width: 16px; height: 2px; border-radius: 0; background: var(--grad); }
.sw-finish { width: 16px; height: 3px; border-radius: 0; background: var(--vermilion); }

/* ---------- overlays on the plate ---------- */
.screen {
  position: absolute;
  inset: 10px;
  display: grid;
  place-items: center;
  background: rgba(243, 238, 226, 0.55);
  backdrop-filter: blur(2px) saturate(0.8);
  z-index: 5;
}
.screen[hidden] { display: none; }
#screen-count { background: transparent; backdrop-filter: none; pointer-events: none; }

.card {
  background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow: 6px 6px 0 var(--ink);
  padding: 28px 32px;
  position: relative;
  animation: card-in 0.45s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.card::before {
  content: '';
  position: absolute;
  inset: 5px;
  border: 1px solid var(--rule);
  pointer-events: none;
}
.menu-card { width: min(92%, 580px); }
.small-card { text-align: center; }
.eyebrow { margin: 0 0 14px; }
.big-serif { font-family: var(--f-display); font-size: 30px; margin: 0 0 16px; }

.level-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.level {
  display: grid;
  grid-template-columns: 76px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 16px 14px 12px;
  border: 1px solid var(--rule);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.35), transparent);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}
.level .num-big {
  font-family: var(--f-display);
  font-size: 50px;
  line-height: 1;
  color: var(--ink-3);
  transition: color 0.2s;
  text-align: center;
}
.level h3 { font-family: var(--f-display); font-weight: 400; font-size: 21px; margin: 0 0 4px; }
.level p { margin: 0; font-size: 14px; color: var(--ink-2); }
.level .arch { font-family: var(--f-mono); font-size: 11px; color: var(--teal); margin-top: 6px; letter-spacing: 0.02em; }
.level .times { text-align: right; font-family: var(--f-mono); font-size: 11px; color: var(--ink-2); line-height: 1.8; white-space: nowrap; }
.level .times b { font-weight: 500; color: var(--ink); }
.level.selected {
  border-color: var(--ink);
  background: linear-gradient(90deg, rgba(226, 73, 43, 0.08), rgba(255, 255, 255, 0.3));
  transform: translateX(4px);
}
.level.selected .num-big { color: var(--vermilion); }

.menu-foot { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--rule); }
.how { margin: 0 0 12px; font-size: 14px; color: var(--ink-2); }
.math { font-family: var(--f-mono); font-size: 12px; color: var(--ink); white-space: nowrap; }
.finish-swatch { border-bottom: 3px solid var(--vermilion); color: var(--ink); }
.keys-hint { margin: 0; font-size: 13px; color: var(--ink-2); }

kbd {
  display: inline-block;
  min-width: 22px;
  padding: 2px 6px 1px;
  margin: 0 1px;
  font-family: var(--f-mono);
  font-size: 11px;
  text-align: center;
  color: var(--ink);
  background: #fbf8f1;
  border: 1px solid var(--ink-2);
  border-bottom-width: 2.5px;
  border-radius: 4px;
}

.count {
  font-family: var(--f-display);
  font-size: clamp(90px, 16vw, 200px);
  color: var(--vermilion);
  text-shadow: 3px 3px 0 var(--paper), 5px 5px 0 var(--ink);
  animation: pop 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.finish-card { width: min(92%, 420px); text-align: center; }
.finish-time {
  font-family: var(--f-mono);
  font-weight: 300;
  font-size: 48px;
  margin: 0 0 18px;
  letter-spacing: -0.03em;
}
.finish-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
  text-align: left;
  margin: 0 0 20px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.finish-stats dd { margin: 2px 0 0; font-family: var(--f-mono); font-size: 14px; }
.stamp {
  position: absolute;
  top: -34px;
  right: -30px;
  width: 104px;
  height: 104px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--vermilion);
  border: 3px solid currentColor;
  box-shadow: inset 0 0 0 4px var(--paper), inset 0 0 0 5.5px currentColor;
  background: rgba(243, 238, 226, 0.9);
  font-family: var(--f-display);
  font-size: 22px;
  transform: rotate(-14deg);
  animation: stamp 0.5s 0.25s cubic-bezier(0.3, 1.6, 0.4, 1) both;
}
.stamp.silver { color: #5c6b72; }
.stamp.bronze { color: #9a6a3a; }
.stamp.none { color: var(--ink-3); font-size: 16px; }

/* ---------- notebook (sidebar) ---------- */
.notebook {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 1px solid var(--rule);
  padding-left: var(--gap);
  animation: rise 0.8s 0.16s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
.block { padding: 12px 0 14px; border-bottom: 1px dashed var(--rule); }
.block:first-child { padding-top: 0; }
.block:last-child { border-bottom: 0; }
.block h2 { margin: 0 0 6px; display: flex; justify-content: space-between; align-items: baseline; }
.block h2 .sub { font-weight: 400; letter-spacing: 0.04em; text-transform: none; font-style: italic; font-size: 12px; }

.clock {
  font-family: var(--f-mono);
  font-weight: 300;
  font-size: 44px;
  letter-spacing: -0.04em;
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
}
.delta { font-family: var(--f-mono); font-size: 12px; color: var(--ink-2); margin-top: 4px; }
.delta .ahead { color: var(--teal); }
.delta .behind { color: var(--vermilion-2); }

.readouts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.readouts h2 { margin-bottom: 2px; }
.num { margin: 0; font-family: var(--f-mono); font-size: 17px; font-variant-numeric: tabular-nums; }
.finish-num { color: var(--vermilion-2); }

.chart { width: 100%; display: block; }
#log { height: 130px; }
.inset { height: 170px; border: 1px solid var(--rule); background: #fbf8f1; }

.splits { list-style: none; margin: 8px 0 0; padding: 0; font-family: var(--f-mono); font-size: 11px; display: grid; gap: 2px; }
.splits li { display: grid; grid-template-columns: 34px 1fr 64px 64px; gap: 6px; color: var(--ink-3); }
.splits li.hit { color: var(--ink); animation: flash 0.8s ease-out; }
.splits .d.ahead { color: var(--teal); }
.splits .d.behind { color: var(--vermilion-2); }
.splits span:nth-child(3), .splits span:nth-child(4) { text-align: right; }

.slice-row { display: flex; gap: 16px; align-items: center; }
.dial { width: 104px; height: 70px; flex: none; }
.slice-stats { margin: 0; display: grid; gap: 4px; flex: 1; }
.slice-stats div { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.slice-stats dt { font-size: 10px; letter-spacing: 0.1em; }
.slice-stats dd { margin: 0; font-family: var(--f-mono); font-size: 12px; }
#slice-status.frozen { color: var(--vermilion-2); font-style: normal; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; font-size: 10px; }

/* ---------- key bar ---------- */
.keybar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  justify-content: center;
  padding: 10px var(--gap) 14px;
  font-size: 13px;
  color: var(--ink-2);
  border-top: 1px solid var(--rule);
}

/* ---------- motion ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes card-in { from { opacity: 0; transform: translateY(14px) rotate(-0.6deg); } to { opacity: 1; transform: none; } }
@keyframes pop { 0% { opacity: 0; transform: scale(1.6); } 25% { opacity: 1; transform: scale(1); } 80% { opacity: 1; } 100% { opacity: 0; transform: scale(0.92); } }
@keyframes stamp { from { opacity: 0; transform: rotate(-30deg) scale(2.2); } to { opacity: 1; transform: rotate(-14deg) scale(1); } }
@keyframes flash { from { background: rgba(226, 73, 43, 0.18); } to { background: transparent; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; }
}

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .notebook { border-left: 0; padding-left: 0; border-top: 1px solid var(--rule); padding-top: 14px; }
  .plate-frame, .plate-caption { width: min(100%, 720px); }
  .plate-meta { display: none; }
}

/* keep overlay cards inside small plates */
.screen { overflow: auto; padding: 12px; }
@media (max-width: 980px), (max-height: 820px) {
  .card { padding: 20px 22px; }
  .level { grid-template-columns: 54px 1fr auto; gap: 12px; padding: 10px 12px 10px 8px; }
  .level .num-big { font-size: 38px; }
  .level h3 { font-size: 18px; }
  .level p { font-size: 13px; }
  .how { font-size: 13px; }
  .eyebrow { margin-bottom: 10px; }
}
@media (max-width: 620px) {
  .level { grid-template-columns: 1fr; }
  .level .num-big { text-align: left; }
  .level .times { text-align: left; }
}