:root {
  --bg: #151716; --bg-2: #1d201f; --line: #2c302e; --ink: #f2efe6; --muted: #9a9d98;
  --cap: #f2efe6; --cap-ink: #151716; --held: #ff8a3d; --ok: #7bd389; --bad: #ff5c5c; --warn: #ffd166;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Avenir Next", "Segoe UI Variable", "Segoe UI", "Helvetica Neue", Helvetica, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 var(--sans); }
body { min-height: 100vh; display: flex; flex-direction: column; }
.grid-bg { position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px; opacity: .22; }

.top { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; padding: 28px 32px 0; flex-wrap: wrap; }
.brand { display: flex; align-items: baseline; gap: 14px; }
.brand-mark { display: inline-flex; gap: 3px; align-self: center; }
.brand-mark i { width: 10px; height: 10px; border-radius: 2px; background: var(--cap); display: block; }
.brand-mark i.wide { width: 22px; background: var(--held); }
.brand-name { font: 700 22px/1 var(--mono); letter-spacing: .18em; }
.brand-sub { color: var(--muted); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
#nav { display: flex; gap: 4px; border-bottom: 1px solid var(--line); }
#nav button { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); font: 500 14px var(--sans); padding: 10px 14px; cursor: pointer; letter-spacing: .02em; }
#nav button:hover { color: var(--ink); }
#nav button.active { color: var(--ink); border-bottom-color: var(--held); }

main { width: 100%; max-width: 1040px; margin: 0 auto; padding: 24px 32px 64px; display: grid; gap: 20px; align-content: start; flex: 1; }
.card { background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 22px 24px; position: relative; overflow: hidden; }
.card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--held); opacity: .8; }
.card h2 { margin: 0 0 10px; font: 600 15px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink); }
.card p { margin: 8px 0; }
.muted { color: var(--muted); } .small { font-size: 13px; }
.good { color: var(--ok); } .bad { color: var(--bad); } .warn { color: var(--warn); }
ul.tight { margin: 6px 0 0 18px; padding: 0; } ul.tight li { margin: 4px 0; }

.field { display: grid; grid-template-columns: 200px 1fr; align-items: center; gap: 12px; margin: 8px 0; }
.field span { color: var(--muted); font-size: 14px; }
input, select { background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; padding: 9px 11px; font: 15px var(--sans); width: 100%; }
input:focus, select:focus { outline: 2px solid var(--held); outline-offset: 1px; }
label.check { display: flex; align-items: center; gap: 8px; margin: 10px 0; color: var(--muted); font-size: 14px; }
label.check input { width: auto; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 14px; }
button { background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; padding: 10px 16px; font: 600 14px var(--sans); cursor: pointer; transition: transform .06s ease, background .15s ease; }
button:hover { background: #262a28; } button:active { transform: translateY(1px); }
button.primary { background: var(--held); color: var(--cap-ink); border-color: transparent; }
button.primary:hover { background: #ff9c5a; }
button.ghost { background: transparent; border-color: transparent; color: var(--muted); }
button.ghost:hover { color: var(--ink); background: #262a28; }
button:disabled { opacity: .45; cursor: not-allowed; }

.caps { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin: 14px 0; min-height: 44px; }
.caps.big { gap: 16px; min-height: 84px; }
.keycap { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; height: 44px; padding: 0 12px;
  background: var(--cap); color: var(--cap-ink); border-radius: 7px; font: 600 16px var(--mono);
  box-shadow: 0 3px 0 #b8b4a8, 0 5px 10px rgba(0,0,0,.35); transition: transform .08s ease, box-shadow .08s ease, background .12s ease; }
.caps.big .keycap { min-width: 68px; height: 68px; font-size: 22px; padding: 0 18px; }
.keycap.held { background: var(--held); transform: translateY(3px); box-shadow: 0 0 0 #000, 0 0 18px rgba(255,138,61,.55); }
.keycap.ok { background: var(--ok); box-shadow: 0 3px 0 #4f9a5c, 0 5px 10px rgba(0,0,0,.35); }
.keycap.target { background: var(--cap); }
.capwrap { display: inline-flex; flex-direction: column; align-items: center; gap: 6px; }
.capwrap small { color: var(--muted); font: 700 12px var(--mono); }
.chord { display: inline-flex; gap: 4px; align-items: center; padding: 6px; border: 1px dashed var(--line); border-radius: 8px; }
.chord .keycap { min-width: 34px; height: 34px; font-size: 13px; padding: 0 8px; box-shadow: 0 2px 0 #b8b4a8; }

.trialhead { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.tag { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--held); border: 1px solid var(--held); border-radius: 999px; padding: 3px 10px; }
.instruction { font-size: 19px; font-weight: 600; margin: 10px 0 !important; }
.seenbox { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; min-height: 66px; }
.seenbox .keycap { min-width: 40px; height: 40px; font-size: 15px; }
.verdict p { font-weight: 600; }

table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 8px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font: 600 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
tr.passed td:last-child { color: var(--ok); font-weight: 600; }
tr.failed td:last-child { color: var(--bad); font-weight: 600; }
tr.inconclusive td:last-child { color: var(--warn); font-weight: 600; }
tr.clickable { cursor: pointer; } tr.clickable:hover td { background: #262a28; }
a { color: var(--held); }

#flash { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-weight: 600; opacity: 0; pointer-events: none; transition: all .2s ease; }
#flash.show { opacity: 1; transform: translate(-50%, 0); }
.foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 16px 32px 32px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--line); }

@media (max-width: 700px) {
  .top, main, .foot { padding-left: 16px; padding-right: 16px; }
  .field { grid-template-columns: 1fr; gap: 4px; }
  .caps.big .keycap { min-width: 56px; height: 56px; font-size: 18px; }
}