:root {
  --bg: #eee9dc;
  --ink: #292c24;
  --muted: #535747;
  --faint: #626252;
  --rule: color-mix(in srgb, var(--ink) 28%, transparent);
  --accent: #923d24;
  --serif: "Newsreader", "Iowan Old Style", Palatino, Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --page: 1320px;
  --gutter: 3rem;
}

html:not([data-theme="dark"]) {
  --bg: #eee9dc;
  --ink: #292c24;
  --muted: #535747;
  --faint: #626252;
  --accent: #923d24;
  --olive: #525c37;
  --panel: #e4e0d0;
}
html[data-theme="dark"] {
  --bg: #22251e;
  --ink: #eee9dc;
  --muted: #c0c2ad;
  --faint: #afb29d;
  --accent: #eea183;
  --olive: #c4cd9d;
  --panel: #2c3026;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: -0.012em;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga", "onum";
}

::selection {
  background: color-mix(in srgb, var(--accent) 28%, var(--bg));
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-underline-offset: 0.22em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent);
}

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  background: var(--accent);
  color: var(--bg);
  padding: 8px 12px;
  z-index: 20;
  font-family: var(--mono);
  font-size: 0.75rem;
}

.skip:focus {
  top: 12px;
}

.top {
  width: min(var(--page), calc(100% - 40px));
  margin: 0 auto;
  border-bottom: 1px solid var(--rule);
}

.mast {
  padding: 22px 0 14px;
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 10px 28px;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.owned {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 0 0 16px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}

.owned a {
  color: var(--muted);
  text-decoration: none;
}

.owned a:hover {
  color: var(--accent);
}

.sig {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.sig svg {
  color: var(--accent);
  flex-shrink: 0;
}

.where {
  margin: 0;
  color: var(--faint);
  text-transform: uppercase;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
}

nav a {
  text-decoration: none;
  color: var(--muted);
  text-transform: uppercase;
}

nav a[aria-current="true"],
nav a:hover {
  color: var(--ink);
}

.controls {
  display: flex;
  gap: 4px;
}

.controls button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--faint);
  font: 500 0.72rem/1 var(--mono);
  letter-spacing: 0.06em;
  cursor: pointer;
  padding: 4px 6px;
}

.controls button[aria-pressed="true"] {
  color: var(--ink);
}

main,
footer {
  width: min(var(--page), calc(100% - 40px));
  margin: 0 auto;
}

section,
.hero,
.ledger {
  display: grid;
  grid-template-columns: var(--gutter) minmax(0, 1fr);
  gap: 0 28px;
  padding: 52px 0 8px;
  scroll-margin-top: 18px;
}

.hero {
  padding-top: 56px;
}

.idx,
.no {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.kicker {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0;
  max-width: 14em;
  font-size: clamp(2.6rem, 6.2vw, 4.6rem);
  font-weight: 300;
  letter-spacing: -0.045em;
  line-height: 0.96;
}

.hero h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.lede {
  max-width: 42em;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.45;
}

.status {
  margin: 28px 0 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.go {
  margin: 16px 0 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.go a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
}

.go a:hover {
  border-color: var(--accent);
}

.ledger {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  padding: 0;
  margin: 36px auto 8px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.ledger div {
  padding: 18px 16px 16px 0;
}

.ledger div + div {
  padding-left: 18px;
  border-left: 1px solid var(--rule);
}

.ledger dt {
  font-variant-numeric: tabular-nums;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.ledger dd {
  margin: 4px 0 0;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 400;
  letter-spacing: -0.04em;
}

.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr);
  gap: 24px;
  align-items: end;
  padding-bottom: 18px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.sec-head p {
  margin: 0;
  color: var(--faint);
  font-size: 0.95rem;
}

.method {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.method li {
  display: grid;
  grid-template-columns: 2.4rem 8.5rem minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.method span {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--faint);
  letter-spacing: 0.08em;
}

.method b {
  font-weight: 500;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.method i {
  font-style: italic;
  color: var(--muted);
}

.method li.is-on b {
  color: var(--accent);
}

.method li.is-on span {
  color: var(--accent);
}

.term {
  margin: 32px 0 8px;
  border: 1px solid var(--rule);
  background: color-mix(in srgb, #000 22%, var(--bg));
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0;
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.term-dots {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 14px 0 0 var(--rule), 28px 0 0 var(--rule);
}

.term-body {
  margin: 0;
  padding: 18px 16px 22px;
  min-height: 17.2rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.7;
  letter-spacing: 0;
  white-space: pre-wrap;
  overflow: hidden;
}

.term-body .ln {
  display: block;
}

.term-body .cmd {
  color: var(--ink);
}

.term-body .cmd::before {
  content: "$ ";
  color: var(--accent);
}

.term-body .dim {
  color: var(--faint);
}

.term-body .step {
  color: var(--muted);
}

.term-body .step em {
  font-style: normal;
  color: var(--accent);
}

.term-body .ok {
  color: var(--ink);
}

.caret {
  display: inline-block;
  width: 0.52em;
  height: 0.95em;
  margin-left: 1px;
  background: var(--accent);
  vertical-align: -0.1em;
  animation: caret 1.2s step-end infinite;
}

@keyframes caret {
  0%,
  49% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

.entry {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 8px 18px;
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
}

.entry h3 {
  margin: 6px 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  font-weight: 400;
  letter-spacing: -0.04em;
}

.entry.flag h3 {
  font-style: normal;
}

.entry p {
  margin: 0;
  color: var(--muted);
  max-width: 62ch;
}

.meta {
  font-family: var(--mono) !important;
  font-size: 0.68rem !important;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint) !important;
}

.refs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 16px !important;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--faint) !important;
}

.refs code {
  color: var(--ink);
  font: inherit;
}
.refs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.refs a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.index {
  list-style: none;
  margin: 0;
  padding: 0;
}

.index a {
  display: grid;
  grid-template-columns: 11.5rem minmax(0, 1fr) 8.5rem;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  align-items: baseline;
}

.index a:hover {
  color: inherit;
}

.index .name {
  font-weight: 500;
  letter-spacing: -0.03em;
}

.index a:hover .name {
  color: var(--accent);
}

.index .what {
  color: var(--muted);
  font-size: 0.95rem;
}

.index .where-col {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--faint);
  text-align: right;
}

.ecos {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  padding-top: 22px;
}

.ecos h3 {
  margin: 0 0 8px;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.ecos p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.stack,
.also {
  margin: 18px 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.also {
  font-style: italic;
}

.contact {
  padding-bottom: 8px;
}

.contact h2 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 300;
  max-width: 12em;
}

.mail {
  margin: 28px 0 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-style: italic;
  letter-spacing: -0.03em;
}

.mail a {
  text-decoration: none;
  color: var(--accent);
}

.sites {
  margin-top: 28px !important;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 28px 0 48px;
  margin-top: 40px;
  border-top: 1px solid var(--rule);
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

.who {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.who img {
  width: 28px;
  height: 28px;
  object-fit: cover;
  object-position: 50% 18%;
  border-radius: 50%;
}

.legal-links {
  display: inline-flex;
  gap: 14px;
}

.legal-links a {
  color: var(--faint);
  text-decoration: none;
}

.legal-links a:hover,
.legal-links a[aria-current="page"] {
  color: var(--ink);
}

.legal {
  padding-bottom: 32px;
}

.legal h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: -0.04em;
}

.legal .lede {
  margin: 12px 0 0;
  max-width: 42em;
}

.facts {
  margin: 36px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.facts div {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.facts dt {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.facts dd {
  margin: 0;
  color: var(--ink);
}

.note {
  margin: 28px 0 0;
  color: var(--muted);
  max-width: 58ch;
}

.note p {
  margin: 0 0 12px;
}

.note p:last-child {
  margin-bottom: 0;
}

@media (max-width: 860px) {
  :root {
    --gutter: 0rem;
  }

  .top {
    width: min(var(--page), calc(100% - 28px));
  }

  .mast {
    grid-template-columns: 1fr auto;
  }

  .where {
    display: none;
  }

  nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }

  main,
  footer {
    width: min(var(--page), calc(100% - 28px));
  }

  .hero,
  section {
    grid-template-columns: 1fr;
    padding-top: 36px;
  }

  .idx {
    margin-bottom: 10px;
  }

  .ledger {
    grid-template-columns: 1fr 1fr;
  }

  .ledger div + div {
    border-left: 0;
    padding-left: 0;
  }

  .ledger div:nth-child(odd) {
    padding-right: 16px;
  }

  .facts div,
  .sec-head,
  .method li,
  .index a,
  .ecos {
    grid-template-columns: 1fr;
  }

  .index .where-col {
    text-align: left;
  }

  .method li {
    grid-template-columns: 2rem 1fr;
  }

  .method i {
    grid-column: 2;
  }

  .entry {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .caret {
    animation: none;
  }
}

/* Paper terminal: the instrument, ledger and ruled index share one grid. */
body { background-image: radial-gradient(color-mix(in srgb, var(--ink) 1.5%, transparent) .45px, transparent .45px); background-size: 6px 6px; }
.top, main, footer { width: min(var(--page), calc(100% - 80px)); }
.top { border-top: 5px solid var(--ink); margin-top: 24px; }
.mast { padding: 18px 0 8px; }
.sig { font-size: 1.4rem; }
.controls button { min-height: 36px; min-width: 36px; border: 1px solid transparent; }
.controls button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.controls button:hover { border-color: var(--ink); }
nav a { padding-block: 9px; }
.owned { justify-content: flex-end; padding-bottom: 12px; font-size: .65rem; }
section { padding: 80px 0 24px; }
.idx { border-top: 1px solid var(--accent); padding-top: 9px; }
.hero { position: relative; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 38px; padding: 52px 0 30px; align-items: center; }
.hero > .idx { position: absolute; top: 12px; left: 0; width: 32px; }
.kicker { letter-spacing: .22em; margin-bottom: 24px; }
.hero h1 { font-size: clamp(2.8rem, 4.65vw, 4.5rem); line-height: 1.02; letter-spacing: -.05em; max-width: 15em; }
.hero .lede { max-width: 34em; font-size: 1.1rem; }
.hero .status { margin-top: 22px; }
.go a { display: inline-block; padding: 10px 0; }
.loop-instrument { position: relative; color: var(--olive); aspect-ratio: 1; width: 100%; max-width: 550px; margin: auto; }
.loop-drawing { width: 100%; height: 100%; overflow: visible; }
.crosshair { stroke: currentColor; stroke-width: .5; opacity: .5; }
.outer-ring { stroke: currentColor; stroke-width: .6; }
.rotor { transform-origin: 250px 250px; animation: calibrate 4.8s cubic-bezier(.2,.6,.2,1) both; }
@keyframes calibrate { from { transform: rotate(-144deg); } to { transform: rotate(0deg); } }
.instrument-top, .instrument-bottom { position: absolute; left: 0; right: 0; display: flex; justify-content: space-between; font: .62rem/1.5 var(--mono); letter-spacing: .1em; }
.instrument-top { top: 0; }.instrument-bottom { bottom: 0; }
.plot-label { position: absolute; display: flex; gap: 6px; background: var(--bg); padding: 3px 5px; font: .7rem/1.4 var(--mono); text-transform: uppercase; }
.plot-label small { font: inherit; color: var(--accent); }
.p1 { top: 6%; left: 50%; transform: translateX(-50%); }
.p2 { top: 36%; right: -1%; }.p3 { bottom: 12%; right: 9%; }.p4 { bottom: 12%; left: 9%; }.p5 { top: 36%; left: -1%; }
.ledger { margin: 20px 0 0; border: 1px solid var(--rule); background: var(--panel); }
.ledger div, .ledger div + div { padding: 22px 24px; }
.ledger dt { font: 400 clamp(2rem, 3.8vw, 3.4rem)/1.1 var(--mono); letter-spacing: -.08em; color: var(--olive); }
.ledger dd { margin-top: 10px; }
h2 { font-size: clamp(2.4rem, 4.5vw, 4rem); line-height: 1.05; }
.sec-head { grid-template-columns: 1fr 1fr; padding-bottom: 24px; }
#loop > div { display: grid; grid-template-columns: .85fr 1.15fr; gap: 20px 40px; }
#loop h2 { grid-column: 1 / -1; }
.method { margin: 0; }
.method li { grid-template-columns: 1.6rem 1fr; gap: 3px 12px; padding: 12px 0; }
.method i { grid-column: 2; font-size: 1rem; }
.method li { border-left: 3px solid transparent; padding-left: 12px; }
.method li.is-on { border-left-color: var(--olive); }
.term { margin: 0; background: var(--ink); color: var(--bg); border: 0; }
.term-bar { color: var(--bg); border-color: color-mix(in srgb, var(--bg) 30%, transparent); padding: 14px 20px; }
.term-dots { border-radius: 0; box-shadow: none; background: var(--bg); }
.term-body { height: 340px; min-height: 0; overflow: auto; font-size: .72rem; padding: 20px; }
.term-body .cmd, .term-body .ok, .term-body .step, .term-body .dim { color: var(--bg); }
.term-body .step em, .term-body .cmd::before { color: var(--bg); }
.caret { background: var(--bg); animation: none; }
.entry { padding: 34px 0; grid-template-columns: 3rem 1fr; }
.entry h3 { font-size: clamp(2.1rem, 4vw, 3.5rem); }
.entry p { max-width: 74ch; }
.entry.flag { background: var(--panel); padding: 30px; border-top: 4px solid var(--olive); }
.entry.flag h3 { color: var(--olive); }
.no { color: var(--accent) !important; }
.index a { padding: 24px 0; }
.index a:hover { background: var(--panel); }
.index .name { font-family: var(--mono); font-size: .9rem; }
.ecos { gap: 28px; }.ecos > div { border-top: 3px solid var(--olive); padding-top: 20px; }
.stack { font: 400 clamp(1.2rem, 2.3vw, 1.9rem)/1.7 var(--mono); max-width: none; }
.contact { border-top: 1px solid var(--rule); margin-top: 70px; padding-bottom: 40px; }
.contact h2 { font-size: clamp(4rem, 10vw, 9rem); }
.mail { font-size: clamp(1.3rem, 3.8vw, 3.4rem); overflow-wrap: anywhere; }
footer { border-top: 4px solid var(--ink); }
.legal { min-height: 60vh; padding-top: 80px; }
.legal h1 { font-size: clamp(3.5rem, 8vw, 7rem); }
.legal .note { font-size: 1.25rem; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
.skip { top: -100px; }
@media (min-width: 1500px) { .hero { padding-block: 70px; } }
@media (max-width: 1000px) {
 .mast { grid-template-columns: 1fr auto; gap: 4px 20px; }.mast .where { display: none; }
 .mast nav { grid-column: 1; grid-row: 2; justify-content: flex-start; gap: 18px; }.controls { grid-column: 2; grid-row: 1 / 3; }
 .hero { gap: 24px; }.hero h1 { font-size: clamp(2.5rem, 4.8vw, 4rem); }
 #loop > div { grid-template-columns: 1fr; }
 .ecos { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
 .top, main, footer { width: calc(100% - 36px); }.top { margin-top: 16px; }
 .sig { font-size: 1.2rem; }.mast { gap: 8px; }.mast nav { grid-column: 1 / -1; grid-row: 2; gap: 16px; font-size: .63rem; }
 .controls { grid-row: 1; }.controls button { padding: 4px; font-size: .64rem; min-width: 30px; }
 .owned { justify-content: flex-start; gap: 12px; font-size: .6rem; }
 section { padding-top: 52px; }.hero { grid-template-columns: 1fr; padding-top: 42px; gap: 24px; }
 .hero h1 { font-size: 2.9rem; line-height: 1.02; overflow-wrap: break-word; }
 .kicker { font-size: .6rem; margin-bottom: 20px; }.hero .lede { font-size: 1.06rem; margin-top: 18px; }
 .hero .status { font-size: .61rem; margin-top: 18px; }.go { margin-top: 6px; }
 .loop-instrument { max-width: 340px; }.instrument-top, .instrument-bottom { font-size: .5rem; }.plot-label { font-size: .58rem; }
 .ledger { margin-top: 10px; }.ledger div, .ledger div + div { padding: 18px 12px; }
 .ledger div:nth-child(even) { border-left: 1px solid var(--rule); }.ledger div:nth-child(n+3) { border-top: 1px solid var(--rule); }
 .ledger dd { font-size: .6rem; }.ledger dt { font-size: 2.3rem; }
 .sec-head { grid-template-columns: 1fr; gap: 12px; }.entry, .entry.flag { grid-template-columns: 1fr; padding: 24px 0; }.entry.flag { padding: 22px 16px; }
 .term-body { height: 390px; font-size: .65rem; padding: 16px; overflow-wrap: anywhere; }
 .index a { gap: 8px; }.ecos { grid-template-columns: 1fr; }.facts dd { overflow-wrap: anywhere; }
 .contact { margin-top: 40px; } footer { gap: 22px; }.legal { padding-top: 48px; }
}
@media (prefers-reduced-motion: reduce) {
 .rotor, .caret { animation: none; }
}

/* Round 2: the method owns progress; the instrument stays within the opening. */
@property --loop-fill {
  syntax: "<number>";
  inherits: true;
  initial-value: 100;
}
.opening { position: relative; --loop-fill: 100; }
.method { position: relative; }
.method .progress-band { position: absolute; left: 0; width: 1px; height: 20%; pointer-events: none; }
.idx { font-size: 13px; }
.hero-watermark { display: none; }
.loop-progress { stroke-dasharray: 100; stroke-dashoffset: calc(100 - var(--loop-fill)); }
.plot-label { border-left: 2px solid transparent; }
.plot-label.is-on { color: var(--accent); border-left-color: var(--olive); }
.plot-label small { color: inherit; }
.ledger { background: transparent; border-inline: 0; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.ledger div, .ledger div + div { padding: 18px 12px; border: 0; }
.ledger dt { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 10px; font-family: var(--serif); letter-spacing: -.04em; }
.ledger dt small { font: 10px/1.5 var(--mono); letter-spacing: 0; color: var(--faint); }
.ledger dd { overflow-wrap: anywhere; }
.entry h3, .entry.flag h3 { font-family: var(--serif); font-style: normal; color: var(--ink); }
.entry .flag-line { margin-top: 12px; font: 11px/1.5 var(--mono); color: var(--olive); }
#loop > div { display: block; }
.method-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.method-ring { display: none; width: 56px; height: 56px; flex: none; color: var(--olive); }
.term { border: 1px solid var(--rule); padding: 4px; background: var(--bg); color: var(--bg); }
.term-bar, .term-body { background: var(--ink); }
.term-bar { padding: 7px 10px; font-size: 10px; }
.term-body { height: 240px; padding: 10px; font-size: 11px; overflow-wrap: anywhere; }
.terminal-slot .term { margin-top: 24px; }
@media (min-width: 1024px) {
  .hero { width: 52%; display: block; padding-right: 24px; min-height: 480px; }
  .hero h1 { font-size: clamp(2.8rem, 4.65vw, 4.5rem); }
  .instrument-track { position: absolute; top: 32px; right: 0; bottom: 0; width: 46%; }
  .loop-instrument { position: sticky; top: 24px; }
  .loop-instrument .term { position: absolute; top: 30%; left: 22%; width: 56%; height: 40%; display: flex; flex-direction: column; }
  .loop-instrument .term-body { flex: 1; min-height: 0; height: 0; font-size: 10px; line-height: 1.5; }
  .center-glyph { display: none; }
  .ledger { width: 52%; }
  .ledger dt { font-size: clamp(2rem, 3.2vw, 3rem); }
  #loop { width: 52%; grid-template-columns: 32px minmax(0, 1fr); gap: 20px; padding-right: 24px; }
}
@media (max-width: 1023px) {
  .hero { grid-template-columns: 1fr; }
  .instrument-track { max-width: 500px; margin: 0 auto 28px; }
  .loop-instrument > .term { display: none; }
  .terminal-slot { height: 304px; display: flow-root; }
  .terminal-slot .term { height: 280px; display: flex; flex-direction: column; }
  .terminal-slot .term-body { flex: 1; min-height: 0; }
  .method-heading { position: sticky; top: 0; z-index: 2; background: var(--bg); padding-block: 8px; }
  .method-ring { display: block; }
}
@media (max-width: 719px) {
  .hero-copy { position: relative; isolation: isolate; }
  .hero-watermark { display: block; position: absolute; top: 16px; right: 0; width: 40%; height: auto; color: var(--olive); opacity: .06; z-index: -1; pointer-events: none; }
  .hero h1 { position: relative; }
  .ledger div, .ledger div + div, .ledger div:nth-child(n) { padding: 14px 6px; border: 0; }
  .ledger dt { font-size: clamp(1.65rem, 6vw, 2.5rem); }
  .ledger dt small { font-size: 10px; overflow-wrap: anywhere; }
  .ledger dd { font-size: 10px; }
  .term-body { height: 240px; }
}
@keyframes method-fill {
  0% { --loop-fill: 20; }
  20% { --loop-fill: 40; }
  40% { --loop-fill: 60; }
  60% { --loop-fill: 80; }
  80%, 100% { --loop-fill: 100; }
}
@supports (animation-timeline: --method) and (timeline-scope: --method) {
  .opening { timeline-scope: --method; }
  .method { view-timeline: --method block; view-timeline-inset: 50% 50%; }
  .opening.is-scroll-linked { animation: method-fill 1s step-end both; animation-timeline: --method; animation-range: contain 0% contain 100%; }
  .is-scroll-linked .plot-label, .is-scroll-linked .method li {
    animation: var(--stage-animation) 1s step-end both;
    animation-timeline: --method;
    animation-range: contain 0% contain 100%;
  }
  .is-scroll-linked .method li b, .is-scroll-linked .method li > span { color: inherit; }
  .p1, .method li:nth-child(1) { --stage-animation: method-stage-1; }
  .p2, .method li:nth-child(2) { --stage-animation: method-stage-2; }
  .p3, .method li:nth-child(3) { --stage-animation: method-stage-3; }
  .p4, .method li:nth-child(4) { --stage-animation: method-stage-4; }
  .p5, .method li:nth-child(5) { --stage-animation: method-stage-5; }
}
@keyframes method-stage-1 {
  0% { color: var(--accent); border-left-color: var(--olive); }
  20%, 100% { color: var(--ink); border-left-color: transparent; }
}
@keyframes method-stage-2 {
  0% { color: var(--ink); border-left-color: transparent; }
  20% { color: var(--accent); border-left-color: var(--olive); }
  40%, 100% { color: var(--ink); border-left-color: transparent; }
}
@keyframes method-stage-3 {
  0% { color: var(--ink); border-left-color: transparent; }
  40% { color: var(--accent); border-left-color: var(--olive); }
  60%, 100% { color: var(--ink); border-left-color: transparent; }
}
@keyframes method-stage-4 {
  0% { color: var(--ink); border-left-color: transparent; }
  60% { color: var(--accent); border-left-color: var(--olive); }
  80%, 100% { color: var(--ink); border-left-color: transparent; }
}
@keyframes method-stage-5 {
  0% { color: var(--ink); border-left-color: transparent; }
  80%, 100% { color: var(--accent); border-left-color: var(--olive); }
}
@media (prefers-reduced-motion: reduce) {
  .opening, .opening.is-scroll-linked, .opening .plot-label, .opening .method li { animation: none; }
  .opening .loop-progress { stroke-dashoffset: 0; }
  .rotor { animation: none; }
}

/* Polish 2026-09-23: terminal below the ring, project spec column, stack as a grid. */
.stack-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(10.5rem, 1fr)); gap: 0; }
.stack-list li { padding: 14px 16px; box-shadow: 1px 0 0 0 var(--rule), 0 1px 0 0 var(--rule), 1px 1px 0 0 var(--rule), 1px 0 0 0 var(--rule) inset, 0 1px 0 0 var(--rule) inset; font: 400 13px/1.4 var(--mono); letter-spacing: .02em; color: var(--ink); }
@media (min-width: 1024px) {
  .loop-instrument .term { top: calc(100% + 20px); left: 6%; width: 88%; height: 214px; }
  .loop-instrument .term-body { font-size: 11px; line-height: 1.55; overflow: hidden; }
  .center-glyph { display: inline; }
  .instrument-track { padding-bottom: 260px; }
  .loop-instrument { max-width: 470px; }
  .entry > div { display: grid; grid-template-columns: minmax(0, 1fr) minmax(12rem, 16rem); column-gap: 56px; align-items: start; }
  .entry > div > * { grid-column: 1; }
  .entry > div > .meta { grid-column: 2; grid-row: 1 / span 6; margin: 0; padding: 4px 0 4px 20px; border-left: 1px solid var(--rule); line-height: 2; word-spacing: .15em; }
  .entry.flag > div > .meta { border-left-color: var(--olive); }
  .entry p:not(.meta) { max-width: 68ch; }
}
@media (max-width: 600px) { .stack-list { grid-template-columns: 1fr 1fr; } .stack-list li { padding: 11px 12px; font-size: 12px; } }

/* Visual round 2026-09-23: project line art, skill cards, section numerals, count-up. */
.entry-art { margin: 18px 0 6px; color: var(--olive); max-width: 280px; }
.entry-art svg { display: block; width: 100%; height: auto; }
.js-art .entry-art .d, .js-art .glyph .d { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.6s cubic-bezier(.3,.6,.2,1); }
.js-art .drawn .d { stroke-dashoffset: 0; }
.js-art .drawn .d:nth-child(n+4) { transition-delay: .25s; }
.js-art .drawn .d:nth-child(n+8) { transition-delay: .5s; }
.js-art .entry-art [stroke-dasharray] { opacity: 0; transition: opacity .8s .9s; }
.js-art .entry-art.drawn [stroke-dasharray] { opacity: 1; }
.entry.flag .entry-art { color: var(--olive); }

.index.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 0; border-top: 0; }
.index.cards li { border: 0; box-shadow: 1px 0 0 0 var(--rule), 0 1px 0 0 var(--rule), 1px 1px 0 0 var(--rule), 1px 0 0 0 var(--rule) inset, 0 1px 0 0 var(--rule) inset; }
.index.cards a { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; height: 100%; padding: 26px 24px 24px; }
.index.cards .glyph { width: 34px; height: 34px; color: var(--olive); margin-bottom: 6px; }
.index.cards .name { font-size: .95rem; color: var(--ink); }
.index.cards .what { max-width: none; }
.index.cards .where-col { margin-top: auto; padding-top: 10px; text-align: left; }
.index.cards a:hover .glyph { color: var(--accent); }

section[data-n] { position: relative; isolation: isolate; }
section[data-n]::before { content: attr(data-n); position: absolute; right: -.04em; top: 18px; z-index: -1; font: 400 clamp(7rem, 17vw, 15rem)/1 var(--serif); letter-spacing: -.06em; color: transparent; -webkit-text-stroke: 1px color-mix(in srgb, var(--ink) 16%, transparent); pointer-events: none; }

@media (min-width: 1024px) {
  .entry > div > .meta { grid-row: 1; }
  .entry > div > .entry-art { grid-column: 2; grid-row: 2 / span 5; margin: 22px 0 0; max-width: none; padding-left: 20px; }
  #loop[data-n]::before { display: none; }
}
@media (max-width: 1023px) {
  #loop[data-n]::before { right: 0; }
}
@media (max-width: 600px) {
  .entry-art { max-width: 220px; margin: 14px 0 4px; }
  .index.cards { grid-template-columns: 1fr; }
  .index.cards a { padding: 20px 16px; }
  section[data-n]::before { font-size: 6.5rem; top: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .js-art .entry-art .d, .js-art .glyph .d { transition: none; stroke-dashoffset: 0; }
}
@media (min-width: 1024px) {
  .index.cards { grid-template-columns: repeat(6, 1fr); }
  .index.cards li { grid-column: span 2; }
  .index.cards li:nth-child(-n+2) { grid-column: span 3; }
  .index.cards li:nth-child(-n+2) .glyph { width: 44px; height: 44px; }
  .index.cards li:nth-child(-n+2) .name { font-size: 1.05rem; }
  .entry-art { max-width: 300px; }
}
section[data-n]::before { -webkit-text-stroke-color: color-mix(in srgb, var(--ink) 11%, transparent); }
@media (max-width: 600px) { .entry-art { max-width: 180px; } }

/* Instrument round 2026-09-23: dark is the default and reads as a lit instrument, paper stays as the light option. */
html[data-theme="dark"] {
  --bg: #090d0c;
  --ink: #e4ede7;
  --muted: #a3b2aa;
  --faint: #7f8f87;
  --accent: #ffb86b;
  --olive: #b9f26a;
  --panel: #101715;
  --rule: color-mix(in srgb, var(--ink) 16%, transparent);
  --glow: color-mix(in srgb, var(--olive) 55%, transparent);
  color-scheme: dark;
}
html[data-theme="dark"] body {
  background-color: var(--bg);
  background-image:
    radial-gradient(60rem 40rem at 88% -10%, color-mix(in srgb, var(--olive) 9%, transparent), transparent 70%),
    radial-gradient(40rem 30rem at -10% 55%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 70%),
    radial-gradient(color-mix(in srgb, var(--ink) 9%, transparent) 1px, transparent 1.2px);
  background-size: auto, auto, 22px 22px;
  background-attachment: fixed, fixed, scroll;
}
html[data-theme="dark"] .loop-drawing,
html[data-theme="dark"] .entry-art svg,
html[data-theme="dark"] .index.cards .glyph,
html[data-theme="dark"] .method-ring { filter: drop-shadow(0 0 5px var(--glow)); }
html[data-theme="dark"] .hero h1 em {
  background: linear-gradient(95deg, var(--olive), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
html[data-theme="dark"] .ledger dt { color: var(--olive); text-shadow: 0 0 18px var(--glow); }

/* HUD corners on panels and cards */
html[data-theme="dark"] :is(.entry.flag, .ledger, .index.cards li, .ecos > div, .term) {
  --c: color-mix(in srgb, var(--olive) 70%, transparent);
  background-image:
    linear-gradient(var(--c), var(--c)), linear-gradient(var(--c), var(--c)),
    linear-gradient(var(--c), var(--c)), linear-gradient(var(--c), var(--c)),
    linear-gradient(var(--c), var(--c)), linear-gradient(var(--c), var(--c)),
    linear-gradient(var(--c), var(--c)), linear-gradient(var(--c), var(--c));
  background-size: 14px 1px, 1px 14px, 14px 1px, 1px 14px, 14px 1px, 1px 14px, 14px 1px, 1px 14px;
  background-position: 0 0, 0 0, 100% 0, 100% 0, 0 100%, 0 100%, 100% 100%, 100% 100%;
  background-repeat: no-repeat;
}
html[data-theme="dark"] :is(.entry.flag, .ledger) {
  background-color: color-mix(in srgb, var(--panel) 82%, transparent);
  backdrop-filter: blur(6px);
  border: 1px solid color-mix(in srgb, var(--olive) 18%, transparent);
}
html[data-theme="dark"] .entry.flag { border-top: 2px solid var(--olive); box-shadow: 0 -8px 30px -18px var(--glow); }
html[data-theme="dark"] .index.cards li { background-color: color-mix(in srgb, var(--panel) 55%, transparent); }
html[data-theme="dark"] .index.cards a:hover { background-color: color-mix(in srgb, var(--olive) 7%, transparent); }
html[data-theme="dark"] .ecos > div { border-top-color: var(--olive); padding: 20px 18px 18px; background-color: color-mix(in srgb, var(--panel) 45%, transparent); }

/* Terminal: dark screen, phosphor text */
html[data-theme="dark"] .term { background-color: #050807; border: 1px solid color-mix(in srgb, var(--olive) 35%, transparent); box-shadow: 0 0 40px -12px var(--glow); }
html[data-theme="dark"] .term-bar, html[data-theme="dark"] .term-body { background: #050807; color: var(--olive); }
html[data-theme="dark"] .term-body .cmd, html[data-theme="dark"] .term-body .ok,
html[data-theme="dark"] .term-body .step, html[data-theme="dark"] .term-body .dim { color: var(--olive); }
html[data-theme="dark"] .term-body .dim { opacity: .7; }
html[data-theme="dark"] .term-body .step em, html[data-theme="dark"] .term-body .cmd::before { color: var(--accent); }
html[data-theme="dark"] .term-body { text-shadow: 0 0 6px var(--glow); }
html[data-theme="dark"] .term-dots { background: var(--olive); }

html[data-theme="dark"] section[data-n]::before { -webkit-text-stroke-color: color-mix(in srgb, var(--olive) 16%, transparent); }
html[data-theme="dark"] .idx { border-top-color: var(--accent); }
html[data-theme="dark"] .top { border-top-color: var(--olive); }
html[data-theme="dark"] a:focus-visible { outline-color: var(--olive); }

/* Scroll progress */
@supports (animation-timeline: scroll()) {
  body::after { content: ""; position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 50; background: linear-gradient(90deg, var(--olive), var(--accent)); transform-origin: 0 50%; animation: scroll-progress linear both; animation-timeline: scroll(root); pointer-events: none; }
  html[data-theme="dark"] body::after { box-shadow: 0 0 10px var(--glow); }
  @keyframes scroll-progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }
}
@media (prefers-reduced-motion: reduce) { body::after { display: none; } }

/* Reel 2026-09-25: one click-to-play video after the opening. Sound starts only when asked for. */
.reel .reel-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 32px; margin-bottom: 22px; }
.reel .reel-head h2 { margin: 0; }
.reel .reel-head p { margin: 0; max-width: 44ch; font: 12px/1.6 var(--mono); letter-spacing: .02em; color: var(--faint); }
.reel-frame { position: relative; margin: 0; max-width: 100%; aspect-ratio: 16 / 9; border: 1px solid var(--rule); background: #090d0c; }
.reel-frame video { display: block; width: 100%; height: 100%; background: #090d0c; }
.reel-frame video:not([controls]) { cursor: pointer; }
.reel-play { position: absolute; left: 50%; bottom: 8%; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border: 1px solid #b9f26a; background: rgba(9, 13, 12, .82); color: #b9f26a; font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; cursor: pointer; }
.reel-play:hover { background: #b9f26a; color: #090d0c; }
.reel-play:focus-visible { outline: 2px solid #b9f26a; outline-offset: 3px; }
.reel-frame.is-playing .reel-play { display: none; }
html[data-theme="dark"] .reel-frame { border-color: color-mix(in srgb, var(--olive) 35%, transparent); box-shadow: 0 0 40px -14px var(--glow); }
@media (max-width: 600px) { .reel-play { top: 8%; bottom: auto; padding: 9px 14px; font-size: 11px; } }