:root {
  --paper: #f4ead8;
  --paper-soft: #fff7e8;
  --ink: #17130d;
  --muted: #665c4b;
  --line: #2d2418;
  --line-soft: rgba(45, 36, 24, 0.18);
  --acid: #c8ff3d;
  --acid-dark: #7cab00;
  --blue: #2167ff;
  --red: #d84a28;
  --green: #138a49;
  --amber: #bd7600;
  --shadow: 0 18px 60px rgba(23, 19, 13, 0.14);
  --radius: 22px;
  --mono: "SFMono-Regular", "Cascadia Code", "Liberation Mono", Menlo, monospace;
  --display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --body: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 0%, rgba(200, 255, 61, 0.18), transparent 26rem),
    linear-gradient(90deg, rgba(23,19,13,0.035) 1px, transparent 1px),
    linear-gradient(rgba(23,19,13,0.035) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 32px 32px, 32px 32px, auto;
  font-family: var(--body);
  line-height: 1.45;
}

code, pre { font-family: var(--mono); }
a { color: inherit; }
button, input, select { font: inherit; }

.hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 380px);
  gap: 3rem;
  align-items: end;
  padding: clamp(2rem, 5vw, 5rem);
  overflow: hidden;
  border-bottom: 3px solid var(--line);
}
.hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 55%, rgba(23,19,13,0.08) 55% 55.5%, transparent 55.5%),
    radial-gradient(circle at 85% 22%, rgba(33,103,255,0.12), transparent 18rem);
}
.hero__content, .hero__card { position: relative; z-index: 1; }
.eyebrow {
  margin: 0 0 0.7rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
h1, h2, h3 { font-family: var(--display); line-height: 0.96; margin: 0; }
h1 {
  max-width: 900px;
  font-size: clamp(4rem, 11vw, 10rem);
  letter-spacing: -0.08em;
}
h2 { font-size: clamp(2.3rem, 5vw, 5.6rem); letter-spacing: -0.06em; }
h3 { font-size: clamp(1.4rem, 2.5vw, 2.2rem); letter-spacing: -0.04em; }
.lede {
  max-width: 760px;
  margin: 1.4rem 0 0;
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  color: #31281a;
}
.hero__actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 2rem; }
.button, .segmented__button {
  border: 2px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--line);
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease;
}
.button:hover, .segmented__button:hover { transform: translate(-1px, -1px); box-shadow: 6px 6px 0 var(--line); }
.button--primary, .segmented__button.is-active { background: var(--acid); }
.hero__card {
  align-self: center;
  background: var(--ink);
  color: var(--paper-soft);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}
.hero__card strong { display: block; font-family: var(--display); font-size: 3.2rem; line-height: 0.9; letter-spacing: -0.06em; }
.hero__card p { color: rgba(255,247,232,0.76); }
.hero--report {
  grid-template-columns: minmax(0, 1fr);
  min-height: 58vh;
}
.hero--subpage {
  min-height: 46vh;
  grid-template-columns: minmax(0, 1fr);
}
.hero--subpage h1 { font-size: clamp(3.8rem, 9vw, 7.5rem); }
.stamp {
  display: inline-block;
  border: 1px solid rgba(255,247,232,0.4);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--acid);
  margin-bottom: 1rem;
}

.section { padding: clamp(2rem, 5vw, 5rem); }
.section--tight { padding-bottom: 2rem; }
.section__heading { margin-bottom: 1.5rem; }
.row-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: end; }
.intro-panel {
  background: var(--ink);
  color: var(--paper-soft);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.2rem, 3vw, 2rem);
  box-shadow: var(--shadow);
}
.intro-panel > p {
  max-width: 1040px;
  margin: 0 0 1rem;
  font-size: clamp(1rem, 1.25vw, 1.16rem);
  color: rgba(255,247,232,0.78);
}
.intro-panel > .intro-panel__lead {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  color: rgba(255,247,232,0.9);
}
.intro-panel > p:last-child { margin-bottom: 0; }
.intro-panel a { color: var(--acid); text-decoration-thickness: 2px; text-underline-offset: 0.18em; }
.takeaways { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.takeaway, .panel, .method-card, .score-card, .attempt-card {
  background: rgba(255, 247, 232, 0.78);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.takeaway { padding: 1.2rem; min-height: 150px; }
.takeaway strong { display: block; font-family: var(--display); font-size: 2rem; letter-spacing: -0.05em; line-height: 1; }
.takeaway p { color: var(--muted); margin-bottom: 0; }
.method-card { padding: 1rem 1.2rem; margin-top: 1rem; }
.method-card--scoreboard { margin: 0 0 clamp(3.5rem, 6vw, 5rem); }
.method-card--scoreboard + .panel { margin-top: 1.5rem; }
.method-card summary { cursor: pointer; font-weight: 800; }

.score-controls { display: grid; gap: 0.8rem; justify-items: end; align-items: end; }
.score-control { display: grid; gap: 0.35rem; justify-items: end; }
.control-label { font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.segmented { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.segmented__button { box-shadow: none; padding: 0.55rem 0.85rem; }
.score-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.score-card { padding: 1rem; position: relative; overflow: hidden; }
.score-card::after { content: ""; position: absolute; inset: auto 0 0; height: 7px; background: var(--score-color, var(--blue)); }
.score-card__top { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.score-card h3 { font-family: var(--body); font-size: 1rem; letter-spacing: 0; line-height: 1.2; }
.score-card__metric { font-family: var(--display); font-size: 3.1rem; letter-spacing: -0.07em; }
.score-card__sub { color: var(--muted); font-family: var(--mono); font-size: 0.78rem; }

.panel { padding: 1.1rem; }
.panel--ink { background: var(--ink); color: var(--paper-soft); }
.panel--ink p, .panel--ink .bar__meta { color: rgba(255,247,232,0.72); }
.panel__title { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; margin-bottom: 1rem; }
.panel__title p { margin: 0; color: var(--muted); }
.section--split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr); gap: 1rem; }

.heatmap { overflow-x: auto; }
.heatmap table { width: 100%; min-width: 860px; border-collapse: collapse; font-size: 0.9rem; }
.heatmap th { font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.heatmap th span { display: inline-block; margin-top: 0.2rem; color: var(--ink); letter-spacing: 0; text-transform: none; }
.heatmap td, .heatmap th { padding: 0.55rem; border-bottom: 1px solid var(--line-soft); text-align: left; }
.heatmap__average th, .heatmap__average td {
  background: var(--ink);
  color: var(--paper-soft);
  border-top: 3px solid var(--line);
  border-bottom: 3px solid var(--line);
}
.heatmap__average th { color: var(--acid); font-size: 0.82rem; }
.heatmap__average .heat-cell { border-color: var(--acid); box-shadow: 0 0 0 2px rgba(206, 255, 0, 0.22); }
.heat-cell {
  display: inline-flex;
  min-width: 72px;
  justify-content: center;
  border: 1px solid rgba(23,19,13,0.24);
  border-radius: 999px;
  padding: 0.25rem 0.5rem;
  background: color-mix(in srgb, var(--green) calc(var(--pct) * 1%), var(--paper-soft));
  font-family: var(--mono);
  color: var(--ink);
}


.filters {
  position: sticky;
  top: 0;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr)) minmax(220px, 1.4fr);
  gap: 0.75rem;
  background: rgba(244, 234, 216, 0.92);
  backdrop-filter: blur(10px);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.filters label { display: grid; gap: 0.25rem; font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.filters select, .filters input {
  width: 100%;
  border: 2px solid var(--line);
  border-radius: 14px;
  padding: 0.65rem 0.7rem;
  background: var(--paper-soft);
  color: var(--ink);
  font-family: var(--body);
  letter-spacing: 0;
  text-transform: none;
}
.attempt-summary { font-family: var(--mono); color: var(--muted); margin: 0.8rem 0 1rem; }
.attempt-list { display: grid; gap: 0.9rem; }
.attempt-card { overflow: hidden; }
.attempt-card__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  padding: 1rem;
  align-items: start;
}
.attempt-card h3 { font-family: var(--body); font-size: 1.05rem; letter-spacing: 0; line-height: 1.2; }
.chips { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.6rem; }
.chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 0.2rem 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  background: rgba(255,255,255,0.35);
}
.chip--good { background: rgba(19,138,73,0.14); color: var(--green); }
.chip--bad { background: rgba(216,74,40,0.14); color: var(--red); }
.chip--warn { background: rgba(189,118,0,0.14); color: var(--amber); }
.attempt-card__actions { display: flex; gap: 0.45rem; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.trace { border-top: 2px solid var(--line); background: #130f0a; color: #f7ecd9; display: none; }
.trace.is-open { display: block; }
.trace__tabs { display: flex; gap: 0.4rem; padding: 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.16); flex-wrap: wrap; }
.trace__tab { background: transparent; color: #f7ecd9; border: 1px solid rgba(255,255,255,0.3); border-radius: 999px; padding: 0.35rem 0.65rem; cursor: pointer; }
.trace__tab.is-active { background: var(--acid); color: var(--ink); border-color: var(--acid); }
.trace__body { padding: 1rem; max-height: 70vh; overflow: auto; }
.trace pre { margin: 0; white-space: pre-wrap; word-break: break-word; font-size: 0.78rem; line-height: 1.45; }
.mini-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
.mini-table td, .mini-table th { vertical-align: top; text-align: left; border-bottom: 1px solid rgba(255,255,255,0.14); padding: 0.45rem; }
.mini-table th { color: var(--acid); font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; }
.reason-list { margin: 0.55rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.footer { padding: 2rem clamp(2rem, 5vw, 5rem); border-top: 2px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 0.8rem; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .takeaways, .score-grid, .section--split { grid-template-columns: 1fr; }
  .filters { grid-template-columns: 1fr 1fr; position: static; }
}
@media (max-width: 620px) {
  .filters { grid-template-columns: 1fr; }
  .row-heading, .panel__title, .attempt-card__head { display: grid; }
  .attempt-card__actions { justify-content: start; }
  .bar { grid-template-columns: 1fr; }
  .bar__meta { grid-column: auto; margin: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}