:root {
  --ground: #e5e7e2;
  --sheet: #f7f7f3;
  --ink: #16181b;
  --muted: #5b6168;
  --rule: #c6cbc6;
  --accent: #2b3dcc;
  --accent-soft: #dde1fa;
  --on-accent: #ffffff;
  --shadow: 0 1px 0 rgba(22, 24, 27, 0.06), 0 14px 34px -18px rgba(22, 24, 27, 0.45);
  --display: "Bricolage Grotesque", "Avenir Next Condensed", "Arial Narrow", system-ui, sans-serif;
  --body: "Instrument Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --gutter: clamp(16px, 3.4vw, 44px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --ground: #111316;
    --sheet: #1a1d21;
    --ink: #e7e9eb;
    --muted: #9aa1a9;
    --rule: #30363c;
    --accent: #8d9aff;
    --accent-soft: #232a52;
    --on-accent: #0d1030;
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.4), 0 14px 34px -18px rgba(0, 0, 0, 0.85);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 15px/1.5 var(--body);
  padding-inline: var(--gutter);
}
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
code { font-family: var(--mono); }
.keys {
  font: 600 10.5px/1 var(--mono);
  letter-spacing: 0.06em;
  opacity: 0.6;
  margin-left: 4px;
}

/* ---- header */
.top {
  max-width: 1480px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 20px;
  padding-block: 20px 16px;
}
.brand {
  font: 800 34px/1 var(--display);
  font-variation-settings: "wdth" 80;
  letter-spacing: -0.04em;
  text-decoration: none;
}
.brand span { color: var(--accent); }
.tag { margin: 0; color: var(--muted); font-size: 14px; flex: 1; min-width: 12ch; }
.nav { display: flex; gap: 18px; font: 600 13px/1 var(--body); }
.nav a { text-decoration: none; border-bottom: 1.5px solid var(--rule); padding-bottom: 3px; }
.nav a:hover { border-color: var(--ink); }

/* ---- studio */
.studio {
  max-width: 1480px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  align-items: start;
}
.stage { display: grid; justify-items: center; gap: 12px; min-width: 0; }
.frame {
  --m: 12px;
  padding: var(--m);
  background:
    linear-gradient(var(--muted), var(--muted)) left 0 top var(--m) / 8px 1px no-repeat,
    linear-gradient(var(--muted), var(--muted)) left var(--m) top 0 / 1px 8px no-repeat,
    linear-gradient(var(--muted), var(--muted)) right 0 top var(--m) / 8px 1px no-repeat,
    linear-gradient(var(--muted), var(--muted)) right var(--m) top 0 / 1px 8px no-repeat,
    linear-gradient(var(--muted), var(--muted)) left 0 bottom var(--m) / 8px 1px no-repeat,
    linear-gradient(var(--muted), var(--muted)) left var(--m) bottom 0 / 1px 8px no-repeat,
    linear-gradient(var(--muted), var(--muted)) right 0 bottom var(--m) / 8px 1px no-repeat,
    linear-gradient(var(--muted), var(--muted)) right var(--m) bottom 0 / 1px 8px no-repeat;
}
.sheet {
  width: min(100%, calc(100svh - 150px));
  min-width: min(100%, 320px);
  aspect-ratio: 1;
  max-width: 100%;
  position: relative;
}
.sheet canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--sheet);
  box-shadow: var(--shadow);
}
.status {
  position: absolute;
  left: 24px;
  bottom: 24px;
  font: 600 10.5px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 8px;
  border-radius: 3px;
  background: rgba(10, 11, 13, 0.74);
  color: #f2f2ee;
  pointer-events: none;
}
.plate {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 4px 14px;
  font: 500 13px/1.4 var(--mono);
  color: var(--muted);
  text-align: center;
}
.plate b { font: 700 16px/1 var(--display); color: var(--ink); letter-spacing: -0.01em; }
.plate code { color: var(--ink); font-weight: 600; overflow-wrap: anywhere; }

/* ---- control panel */
.panel {
  position: sticky;
  top: 16px;
  background: var(--sheet);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 6px 18px;
  max-height: calc(100svh - 32px);
  overflow: auto;
}
.block { padding-block: 16px; display: grid; gap: 10px; }
.block + .block { border-top: 1px solid var(--rule); }
.label {
  margin: 0;
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.label label { cursor: pointer; }
.label-row { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.link {
  border: 0;
  background: none;
  padding: 0;
  font: 600 12px/1.2 var(--body);
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.link:disabled { color: var(--muted); text-decoration: none; cursor: default; opacity: 0.6; }

.styles { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
.style-btn {
  border: 0;
  padding: 0;
  background: none;
  display: grid;
  gap: 5px;
  justify-items: center;
  font: 600 11.5px/1.1 var(--body);
  color: var(--muted);
}
.style-btn canvas {
  width: 100%;
  aspect-ratio: 1;
  display: block;
  border-radius: 4px;
  background: var(--ground);
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: outline-color 0.15s;
}
.style-btn[aria-checked="true"] { color: var(--ink); }
.style-btn[aria-checked="true"] canvas { outline-color: var(--accent); }
.style-btn:hover canvas { outline-color: var(--rule); }
.style-btn[aria-checked="true"]:hover canvas { outline-color: var(--accent); }

.seedbox {
  display: flex;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  background: var(--ground);
  overflow: hidden;
}
.seedbox:focus-within { box-shadow: 0 0 0 3px var(--accent-soft); }
.seedbox input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 10px 16px;
  font: 500 15px/1.2 var(--mono);
}
.seedbox input:focus { outline: none; }
.seedbox button {
  border: 0;
  background: var(--ink);
  color: var(--ground);
  padding: 0 18px;
  font: 600 13px/1 var(--body);
}
.row { display: flex; gap: 8px; align-items: center; }
.row.wrap { flex-wrap: wrap; justify-content: space-between; }
.grow { flex: 1; }
.btn {
  border: 1.5px solid var(--ink);
  background: transparent;
  border-radius: 999px;
  padding: 9px 16px;
  font: 600 13px/1 var(--body);
  white-space: nowrap;
}
.btn:hover { background: var(--ground); }
.btn.icon { padding-inline: 13px; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn:disabled { opacity: 0.4; cursor: default; }
#replay { justify-self: start; }

.options { display: grid; gap: 12px; }
.opt { display: grid; gap: 6px; }
.opt-name { font: 600 12.5px/1 var(--body); }
.seg { display: flex; flex-wrap: wrap; gap: 4px; }
.seg button {
  border: 1px solid var(--rule);
  background: transparent;
  border-radius: 999px;
  padding: 6px 11px;
  font: 600 12px/1 var(--body);
  color: var(--ink);
}
.seg button:hover { border-color: var(--ink); }
.seg button[aria-checked="true"] { background: var(--ink); border-color: var(--ink); color: var(--ground); }
.seg button.auto[aria-checked="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--ink); }
.swatches { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 5px; }
.swatch {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 3px;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}
.swatch i { display: block; border-radius: 1px; }
.swatch.auto { display: grid; place-items: center; font: 700 10px/1 var(--mono); letter-spacing: 0.04em; }
.swatch[aria-checked="true"] { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.switch { display: inline-flex; align-items: center; gap: 8px; font: 600 13px/1 var(--body); cursor: pointer; }
.switch input { width: 16px; height: 16px; accent-color: var(--accent); margin: 0; }
.note { margin: 0; min-height: 1.3em; font: 12px/1.35 var(--mono); color: var(--muted); }

/* ---- other seeds */
.more { max-width: 1480px; margin: 48px auto 0; }
.more-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.more h2, .how h2 { font: 800 clamp(26px, 3.2vw, 38px)/1 var(--display); letter-spacing: -0.03em; margin: 0; font-variation-settings: "wdth" 85; text-wrap: balance; }
.seeds { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 150px), 1fr)); gap: 14px; }
.seed-card {
  border: 0;
  padding: 0;
  background: none;
  display: grid;
  gap: 6px;
  text-align: left;
  font: 500 11.5px/1.3 var(--mono);
  color: var(--muted);
}
.seed-card canvas { width: 100%; aspect-ratio: 1; display: block; background: var(--sheet); box-shadow: var(--shadow); border-radius: 2px; }
.seed-card:hover canvas { outline: 2px solid var(--ink); outline-offset: 2px; }
.seed-card span { overflow-wrap: anywhere; }

/* ---- how it works */
.how {
  max-width: 1480px;
  margin: 64px auto 0;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 28px 56px;
}
.how-text { display: grid; gap: 14px; align-content: start; }
.how-text p { margin: 0; max-width: 62ch; color: var(--muted); font-size: 15.5px; }
.how-text p em { color: var(--ink); font-style: normal; font-weight: 600; }
.how-text .small { font-size: 13.5px; }
.picks { display: grid; gap: 12px; align-content: start; }
.pick-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.pick-card { border: 0; padding: 0; background: none; text-align: left; display: grid; gap: 7px; }
.pick-card canvas { width: 100%; aspect-ratio: 1; display: block; background: var(--sheet); box-shadow: var(--shadow); border-radius: 2px; }
.pick-card:hover canvas { outline: 2px solid var(--accent); outline-offset: 2px; }
.pick-card b { font: 700 15px/1 var(--display); }
.pick-card small { font: 500 11px/1.3 var(--mono); color: var(--muted); overflow-wrap: anywhere; }
.pick-card p { margin: 0; font-size: 12.5px; line-height: 1.4; color: var(--muted); }

.foot {
  max-width: 1480px;
  margin: 56px auto 0;
  padding-block: 18px 28px;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}
.keys-line b { font: 700 11px/1 var(--mono); color: var(--ink); }

@media (max-width: 1100px) {
  .how { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .studio { grid-template-columns: 1fr; }
  .sheet { width: 100%; }
  .panel { position: static; max-height: none; }
  .pick-grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, 140px), 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}