:root {
  --ink: #1d1914;
  --muted: #5c5348;
  --paper: #f4efe6;
  --card: #fffdf8;
  --line: #e2d8c8;
  --green: #1c4534;
  --green-2: #2f6b4f;
  --gold: #8d5e2a;
  --clay: #8f3d32;
  --soft: #efe4d2;
  --shadow: 0 12px 30px rgba(40, 28, 14, 0.06);
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #fff 0%, transparent 50%),
    var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
}

button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--green-2); }

.app { max-width: 1120px; margin: 0 auto; padding: 28px 20px 64px; }

.mast {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.kicker {
  margin: 0 0 6px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--gold);
  font-weight: 700;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.02em; }
h1 { margin: 0; font-size: 40px; line-height: 1.05; }
.lede { margin: 8px 0 0; max-width: 62ch; color: var(--muted); }
.scorebox { text-align: right; }
.scorebox strong { display: block; font-family: var(--serif); font-size: 32px; line-height: 1; }
.scorebox span { color: var(--muted); font-size: 13px; }

nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
nav button, .btn, .ghost {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 8px 14px;
}
nav button.active { background: var(--green); color: #f6f1e7; border-color: var(--green); }
.btn { background: var(--green); color: #f6f1e7; border-color: var(--green); }
.ghost { background: var(--card); }
.btn.small, .ghost.small { padding: 5px 10px; font-size: 14px; }

.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.stat, .card, .pattern { background: var(--card); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); }
.stat { padding: 14px 16px; }
.stat b { display: block; font-family: var(--serif); font-size: 26px; }
.stat span { color: var(--muted); font-size: 13px; }

.note, .warn { padding: 12px 14px; border-radius: 12px; background: var(--soft); margin: 0 0 16px; }
.warn { background: #f8e7df; }

h2 { font-size: 28px; margin: 8px 0 12px; }
h3 { font-size: 20px; margin: 0 0 8px; }
.sub { color: var(--muted); font-weight: 400; }
p.sub { margin-top: -6px; }

table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.tick {
  display: inline-block;
  width: 15px;
  height: 15px;
  border: 1.5px solid var(--muted);
  border-radius: 4px;
}

.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.card { padding: 16px; border-top: 6px solid var(--green); }
.card.d1 { border-top-color: #6f9a78; }
.card.d2 { border-top-color: #2f6b4f; }
.card.d3 { border-top-color: #c4a15a; }
.card.d4 { border-top-color: #c4763a; }
.card.d5 { border-top-color: #8f3d32; }
.card .meta { color: var(--muted); font-size: 14px; margin: 4px 0 8px; }
.card ul { margin: 6px 0 0; padding-left: 20px; }

.badges { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: var(--soft); }
.badge.vote { background: #efe2b8; }

.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
details { margin-top: 10px; }
summary { cursor: pointer; color: var(--green); }

.filters { display: grid; gap: 8px; margin-bottom: 14px; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.pill-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  min-width: 48px;
}
.pill {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 14px;
}
.pill.on { background: var(--green); color: #f6f1e7; border-color: var(--green); }

.deck { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.flip {
  border: 0;
  padding: 0;
  background: none;
  text-align: left;
  perspective: 1200px;
  font: inherit;
}
.flip-inner {
  display: grid;
  transform-style: preserve-3d;
  transition: transform 0.45s ease;
  min-height: 190px;
}
.flip.on .flip-inner { transform: rotateY(180deg); }
.face {
  grid-area: 1 / 1;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  box-shadow: var(--shadow);
}
.face.back {
  transform: rotateY(180deg);
  background: var(--green);
  border-color: var(--green);
  color: #f6f1e7;
}
.face.back .badge { background: rgba(255, 255, 255, 0.18); }
.prompt-sm { font-family: var(--serif); font-size: 20px; line-height: 1.3; flex: 1; }
.hint { font-size: 12.5px; opacity: 0.75; }

.sources li { margin: 8px 0; }
.pattern { padding: 14px; margin-bottom: 10px; }
.pattern .model { font-family: var(--serif); font-size: 18px; }

.foot { margin-top: 28px; color: var(--muted); font-size: 13px; }

@media (max-width: 800px) {
  h1 { font-size: 32px; }
  .mast, .grid, .cards { display: block; }
  .stat, .card { margin-bottom: 10px; }
  .scorebox { text-align: left; margin-top: 12px; }
  .pill-label { min-width: 100%; }
}

@media print {
  body { background: #fff; }
  .app { max-width: none; padding: 0; }
  .noprint, nav, details { display: none !important; }
  .mast { border-bottom: 1px solid #999; }
  .lede, .foot { color: #333; }
  .deck { grid-template-columns: 1fr 1fr; }
  .flip { break-inside: avoid; }
  .flip-inner { display: block; transform: none !important; min-height: 0; }
  .face {
    display: block;
    backface-visibility: visible;
    -webkit-backface-visibility: visible;
    transform: none !important;
    box-shadow: none;
    border: 1px solid #999;
    margin-bottom: 4px;
  }
  .face.back { background: #fff; color: #000; border-style: dashed; }
  .face.back .badge { background: #eee; }
  .card, .stat, .pattern { box-shadow: none; break-inside: avoid; }
}