:root {
  color-scheme: dark;
  --bg: #080a10;
  --bg-soft: #0d1018;
  --panel: rgba(17, 21, 31, .82);
  --panel-solid: #11151f;
  --line: rgba(232, 238, 255, .12);
  --line-strong: rgba(232, 238, 255, .22);
  --text: #f4f6fb;
  --muted: #969eaf;
  --dim: #626a79;
  --mint: #8af5c7;
  --mint-rgb: 138 245 199;
  --violet: #ae9cff;
  --blue: #7fc8ff;
  --danger: #ff8b8b;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --max: 1500px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 76% 4%, rgb(var(--mint-rgb) / .10), transparent 28rem),
    radial-gradient(circle at 13% 22%, rgb(174 156 255 / .09), transparent 32rem),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgb(255 255 255 / .022) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .022) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

button, a { -webkit-tap-highlight-color: transparent; }

button { font: inherit; }

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  transform: translateY(-150%);
  border-radius: 8px;
  background: var(--mint);
  color: #07100d;
  font-weight: 700;
}

.skip-link:focus { transform: translateY(0); }

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 clamp(20px, 4vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgb(8 10 16 / .78);
  backdrop-filter: blur(18px) saturate(130%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 760;
  letter-spacing: -.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgb(var(--mint-rgb) / .38);
  border-radius: 10px;
  background: rgb(var(--mint-rgb) / .08);
  color: var(--mint);
  font: 700 10px/1 var(--mono);
  letter-spacing: .08em;
}

.header-context {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font: 500 11px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.signal {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 18px rgb(var(--mint-rgb) / .85);
}

main, footer {
  width: min(var(--max), calc(100% - clamp(32px, 8vw, 144px)));
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(340px, .75fr);
  align-items: end;
  gap: clamp(50px, 8vw, 140px);
  min-height: 520px;
  padding: clamp(72px, 10vw, 150px) 0 clamp(70px, 8vw, 118px);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--mint);
  font: 600 11px/1.2 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1, h2, h3, p { text-wrap: pretty; }

h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(3.3rem, 7.2vw, 7.6rem);
  font-weight: 760;
  letter-spacing: -.07em;
  line-height: .88;
}

h1 em {
  color: var(--mint);
  font-style: normal;
  font-weight: 480;
}

.hero-lede {
  max-width: 740px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.45vw, 1.35rem);
  line-height: 1.55;
}

.hero-stats {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.hero-stats div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.hero-stats dt {
  color: var(--muted);
  font: 500 11px/1.2 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.hero-stats dd {
  margin: 0;
  color: var(--text);
  font: 500 clamp(1.8rem, 3vw, 3rem)/1 var(--mono);
  letter-spacing: -.08em;
}

.archive { padding: clamp(70px, 9vw, 130px) 0; }

.archive-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 680;
  letter-spacing: -.055em;
  line-height: 1;
}

.filters {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgb(255 255 255 / .025);
}

.filter {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}

.filter span { color: var(--dim); font-family: var(--mono); font-size: 10px; }

.filter:hover { color: var(--text); }

.filter.is-active {
  background: var(--text);
  color: #0a0c12;
}

.filter.is-active span { color: #4d5360; }

.archive-grid {
  display: grid;
  grid-template-columns: minmax(280px, 370px) minmax(0, 1fr);
  align-items: start;
  gap: 16px;
}

.run-list {
  display: grid;
  gap: 8px;
  position: sticky;
  top: 84px;
}

.run-card {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  min-height: 86px;
  width: 100%;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgb(14 17 25 / .62);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, transform .18s ease, opacity .18s ease;
}

.run-card:hover {
  transform: translateX(3px);
  border-color: var(--line-strong);
  background: rgb(20 24 35 / .84);
}

.run-card.is-active {
  border-color: rgb(var(--mint-rgb) / .46);
  background: linear-gradient(110deg, rgb(var(--mint-rgb) / .11), rgb(18 22 31 / .9) 55%);
  box-shadow: inset 3px 0 var(--mint), 0 18px 42px rgb(0 0 0 / .16);
}

.run-card[hidden] { display: none; }

.run-index {
  color: var(--dim);
  font: 500 11px/1 var(--mono);
}

.run-card.is-active .run-index { color: var(--mint); }

.run-card-copy { min-width: 0; }

.run-card-copy strong,
.run-card-copy small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.run-card-copy strong { font-size: 15px; font-weight: 670; letter-spacing: -.01em; }

.run-card-copy small { margin-top: 5px; color: var(--muted); font-size: 12px; }

.run-kind {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font: 500 10px/1 var(--mono);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.run-kind i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
}

.run-kind.is-proof {
  padding: 5px 7px;
  border: 1px solid rgb(174 156 255 / .22);
  border-radius: 5px;
  color: var(--violet);
}

.viewer {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 26px 100px rgb(0 0 0 / .24);
  backdrop-filter: blur(16px);
}

.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 88px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.viewer-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 5px;
  color: var(--mint);
  font: 600 10px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.viewer-status span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

.viewer-header h3 { margin: 0; font-size: clamp(1.25rem, 2vw, 1.75rem); letter-spacing: -.025em; }

.restart-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
}

.restart-button:hover { border-color: var(--line-strong); color: var(--text); }

.restart-button svg { width: 15px; fill: currentColor; }

.restart-button[hidden] { display: none; }

.stage {
  position: relative;
  display: grid;
  min-height: 500px;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at center, rgb(43 48 62 / .24), transparent 65%),
    #030406;
}

.stage video,
.stage img {
  display: block;
  width: 100%;
  height: min(62vw, 680px);
  min-height: 500px;
  object-fit: contain;
  background: #000;
}

.stage [hidden] { display: none; }

.stage-corner {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 7px 9px;
  border: 1px solid rgb(255 255 255 / .13);
  border-radius: 7px;
  background: rgb(3 4 6 / .72);
  color: #d8dce5;
  font: 500 9px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
  pointer-events: none;
}

.playback-meta {
  display: grid;
  grid-template-columns: auto minmax(100px, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 42px;
  padding: 0 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 500 9px/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.progress-track {
  height: 2px;
  overflow: hidden;
  background: rgb(255 255 255 / .10);
}

.progress-track i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--mint);
  box-shadow: 0 0 12px rgb(var(--mint-rgb) / .7);
}

.run-summary {
  display: grid;
  grid-template-columns: 1.5fr 1fr .65fr;
  border-bottom: 1px solid var(--line);
}

.run-summary > div { min-width: 0; padding: 20px 22px; }

.run-summary > div + div { border-left: 1px solid var(--line); }

.run-summary span,
.trace-panel small {
  display: block;
  margin-bottom: 8px;
  color: var(--dim);
  font: 600 9px/1 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.run-summary p { margin: 0; color: #d9dde6; font-size: 13px; }

.trace-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
  padding: 16px 22px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 670;
}

.trace-panel summary::-webkit-details-marker { display: none; }

.trace-panel small { margin-bottom: 6px; }

.summary-action { color: var(--dim); font: 500 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.trace-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 0 22px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.trace-toolbar p { margin: 0; color: var(--muted); font-size: 12px; }

.trace-toolbar a { color: var(--mint); font: 600 10px/1 var(--mono); letter-spacing: .06em; text-decoration: none; text-transform: uppercase; }

.trace-toolbar a:hover { text-decoration: underline; }

.trace-list {
  display: grid;
  max-height: 390px;
  margin: 0;
  padding: 0;
  overflow: auto;
  list-style: none;
  counter-reset: trace;
}

.trace-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 54px;
  padding: 9px 22px;
  border-bottom: 1px solid var(--line);
  counter-increment: trace;
}

.trace-list li:last-child { border-bottom: 0; }

.trace-list li::before {
  content: counter(trace, decimal-leading-zero);
  color: var(--dim);
  font: 500 10px/1 var(--mono);
}

.trace-action { min-width: 0; color: #e4e7ee; font-size: 13px; font-weight: 570; }

.trace-detail {
  overflow: hidden;
  max-width: 360px;
  color: var(--muted);
  font: 500 10px/1.4 var(--mono);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.trace-loading { color: var(--muted); font-size: 12px; }

.method {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: clamp(50px, 8vw, 140px);
  padding: clamp(70px, 9vw, 130px) 0;
  border-top: 1px solid var(--line);
}

.method-grid { display: grid; gap: 10px; }

.method-grid article {
  display: grid;
  grid-template-columns: 42px minmax(180px, .6fr) 1fr;
  align-items: baseline;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.method-grid article:last-child { border-bottom: 1px solid var(--line); }

.method-grid span { color: var(--mint); font: 500 10px/1 var(--mono); }

.method-grid h3 { margin: 0; font-size: 16px; }

.method-grid p { margin: 0; color: var(--muted); font-size: 14px; }

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 104px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 500 10px/1.4 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}

footer p { margin: 0; text-align: center; }

footer a { color: var(--text); text-decoration: none; }

footer a:hover { color: var(--mint); }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); }
  .hero-stats div { display: block; }
  .hero-stats dd { margin-top: 12px; }
  .archive-grid { grid-template-columns: 1fr; }
  .run-list { position: static; grid-template-columns: repeat(5, minmax(220px, 1fr)); overflow-x: auto; padding-bottom: 5px; scroll-snap-type: x mandatory; }
  .run-card { scroll-snap-align: start; }
  .method { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .site-header { min-height: 60px; }
  .header-context { font-size: 9px; letter-spacing: .08em; }
  main, footer { width: min(100% - 32px, var(--max)); }
  .hero { padding-top: 72px; }
  h1 { font-size: clamp(3.1rem, 17vw, 5.2rem); }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-stats div { display: flex; }
  .archive-heading { align-items: start; flex-direction: column; }
  .filters { max-width: 100%; overflow-x: auto; }
  .filter { white-space: nowrap; }
  .viewer-header { min-height: 76px; padding: 15px; }
  .restart-button { width: 38px; padding: 0; justify-content: center; font-size: 0; }
  .stage, .stage video, .stage img { min-height: 320px; height: 58vh; max-height: 560px; }
  .playback-meta { grid-template-columns: auto 1fr; padding: 0 14px; }
  #frame-count { display: none; }
  .run-summary { grid-template-columns: 1fr; }
  .run-summary > div { padding: 16px; }
  .run-summary > div + div { border-top: 1px solid var(--line); border-left: 0; }
  .trace-panel summary { padding-inline: 16px; }
  .summary-action { display: none; }
  .trace-toolbar { align-items: start; flex-direction: column; margin-inline: 16px; }
  .trace-list li { grid-template-columns: 30px minmax(0, 1fr); padding-inline: 16px; }
  .trace-detail { grid-column: 2; max-width: 100%; }
  .method-grid article { grid-template-columns: 34px 1fr; }
  .method-grid p { grid-column: 2; }
  footer { align-items: start; flex-direction: column; justify-content: center; padding: 28px 0; }
  footer p { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}