:root {
  color-scheme: dark;
  --bg: #101610;
  --panel: #17201b;
  --ink: #f4f0e6;
  --muted: #b7b2a6;
  --faint: #a8a294;
  --line: rgba(244, 240, 230, 0.14);
  --gold: #e7b85a;
  --teal: #7ddec4;
  --track: #0c120e;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --sans: "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.02rem;
  line-height: 1.5;
  background:
    radial-gradient(880px 380px at 0% -8%, rgba(231, 184, 90, 0.16), transparent 55%),
    radial-gradient(720px 420px at 100% 0%, rgba(125, 222, 196, 0.11), transparent 50%),
    var(--bg);
}

body::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--gold) 0 50%, var(--teal) 50% 100%);
}

:focus { outline: none; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.5rem;
  transform: translateY(-160%);
  background: var(--ink);
  color: #16140f;
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  z-index: 2;
}

.skip:focus { transform: none; }

.site, main, footer, .noscript {
  width: min(1080px, calc(100% - 2rem));
  margin-inline: auto;
}

.site { padding: 1.15rem 0 0.2rem; }

.kicker {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 { margin: 0.15rem 0 0; font-size: clamp(2rem, 5vw, 3.25rem); }

.site-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.lede, .work-head p, .section-head p, footer p, .explain, .disk p, .advice p {
  color: var(--muted);
}

.lede { max-width: 40rem; margin: 0.55rem 0 0; font-size: 1.02rem; }

.legend {
  display: flex;
  gap: 1rem;
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.legend span, .bar, .op-nums p {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.swatch {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 2px;
  display: inline-block;
  flex: none;
}

.swatch.single { background: var(--gold); }
.swatch.per { background: var(--teal); }

main { display: grid; gap: 1rem; padding-bottom: 1rem; }

.top {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 0.9rem;
  margin-top: 0.95rem;
}

.panel {
  background: rgba(23, 32, 27, 0.94);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem 1.05rem 1.05rem;
}

.verdict { box-shadow: inset 3px 0 0 var(--line); }
.verdict[data-winner="single"] { box-shadow: inset 3px 0 0 var(--gold); }
.verdict[data-winner="per_file"] { box-shadow: inset 3px 0 0 var(--teal); }

.verdict h2 { margin: 0.25rem 0 0; font-size: clamp(1.8rem, 4vw, 2.6rem); }

.ratio {
  margin: 0.35rem 0 0;
  font-family: var(--mono);
  font-size: 0.98rem;
  color: var(--ink);
}

.explain { margin: 0.65rem 0 0; }

.track.tall { height: 12px; margin-bottom: 0.55rem; }

.totals {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 0.95rem 0 0;
}

.totals div {
  border-top: 1px solid var(--line);
  padding-top: 0.55rem;
}

.totals dt {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.totals dd {
  margin: 0.15rem 0 0;
  font-family: var(--mono);
  font-size: 1.25rem;
}

.work h2, .section-head h2, .disk h2, #advice-title {
  margin: 0;
  font-size: 1.45rem;
}

.work-head p, .blurb { margin: 0.35rem 0 0; font-size: 0.92rem; color: var(--muted); }

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0 0.7rem;
}

button {
  font: inherit;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  min-height: 44px;
  cursor: pointer;
}

button:hover { border-color: rgba(244, 240, 230, 0.4); }

button[aria-pressed="true"] {
  background: var(--ink);
  color: #17140f;
  border-color: var(--ink);
}

.fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem 0.8rem;
}

label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

input[type="number"] {
  width: 100%;
  min-height: 44px;
  padding: 0.35rem 0.6rem;
  font-variant-numeric: tabular-nums;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--track);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 1.15rem;
  letter-spacing: 0;
  text-transform: none;
}

.cap {
  margin: 0.7rem 0 0;
  color: var(--gold);
  font-size: 0.92rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-top: 0.9rem;
}

#copy-status { color: var(--muted); font-size: 0.92rem; min-height: 1.2em; }

.section-head { margin-bottom: 0.8rem; }
.section-head p { margin: 0.3rem 0 0; }

.empty { margin: 0; color: var(--muted); }

.line { padding: 0.55rem 0; }
.line + .line { border-top: 1px solid var(--line); }
.line.total { margin-top: 0.2rem; }

.line-label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.35rem;
}

.line-label .name { font-size: 0.95rem; }
.times, .num, .badge, .op-nums strong {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.times { color: var(--faint); font-size: 0.85rem; }

.pair { display: grid; gap: 0.35rem; }

.bar { display: grid; grid-template-columns: 0.7rem 1fr auto; gap: 0.5rem; align-items: center; }

.track {
  height: 9px;
  background: var(--track);
  border-radius: 999px;
  overflow: hidden;
}

.fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
}

.fill.single { background: var(--gold); }
.fill.per { background: var(--teal); }

.num { min-width: 5.6rem; text-align: right; font-size: 0.86rem; color: var(--ink); }

.catalog {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.op {
  display: grid;
  grid-template-columns: 1.4fr 1fr auto;
  gap: 0.8rem 1rem;
  align-items: center;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(23, 32, 27, 0.65);
}

.op h3 { margin: 0; font-size: 1.15rem; }
.op-copy p, .op-nums { margin: 0.2rem 0 0; }
.op-nums p { margin: 0.15rem 0; }
.op-nums .who { color: var(--faint); font-size: 0.82rem; min-width: 5.4rem; }

.badge {
  margin: 0;
  justify-self: end;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.op.win-single { box-shadow: inset 3px 0 0 var(--gold); }
.op.win-per_file { box-shadow: inset 3px 0 0 var(--teal); }

.advice {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.advice article {
  border-top: 2px solid var(--line);
  padding-top: 0.7rem;
}

.advice h3 { margin: 0 0 0.35rem; font-size: 1.2rem; }
.advice p { margin: 0; }

#advice-title { margin-bottom: 0.8rem; }

footer { padding: 0.4rem 0 2rem; }
footer p { margin: 0; font-size: 0.9rem; }

.noscript {
  margin-bottom: 2rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.fill { transition: width 180ms ease; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fill { transition: none; }
}

@media (max-width: 800px) {
  .top, .advice, .op { grid-template-columns: 1fr; }
  .badge { justify-self: start; }
}

@media (max-width: 420px) {
  .fields, .totals { grid-template-columns: 1fr; }
  .site, main, footer, .noscript { width: min(1080px, calc(100% - 1.4rem)); }
  .num { min-width: 4.6rem; }
}