/* ══════════════════════════════════════════════════════════════════════
   Alice — alicememory.com
   Design: archival specimen sheet. Warm paper, ink serif, plate-mono,
   oxide accent, hairline rules, inverted terminal plates.
   Type: Newsreader (display + prose) · IBM Plex Mono (labels + data)
   ══════════════════════════════════════════════════════════════════════ */

/* ── tokens ────────────────────────────────────────────────────────── */
:root {
  --paper:        #F4F1EA;
  --paper-2:      #EDE8DE;
  --paper-raise:  #FBF9F4;
  --ink:          #17150F;
  --ink-2:        #454036;
  --ink-3:        #5F5747;
  --ink-4:        #6F6656;
  --rule:         #DCD5C6;
  --rule-2:       #C7BEAB;
  --accent:       #B0380F;
  --accent-2:     #8E2C0B;
  --accent-wash:  rgba(176, 56, 15, .07);
  --plate:        #14140F;
  --plate-2:      #1D1C16;
  --plate-fg:     #E9E4D8;
  --plate-dim:    #8B8578;
  --plate-rule:   #2E2C24;
  --sel:          rgba(176, 56, 15, .18);
  --grain-op:     .038;
  --shadow-plate: none;

  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 78rem;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --rail: min(var(--wrap), calc(100% - 1.5rem));
  --aside: 15rem;
  --col-gap: clamp(2rem, 5vw, 5rem);
  --prose: 40rem;

  --ease: cubic-bezier(.2, .7, .3, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --paper:        #100F0C;
  --paper-2:      #16150F;
  --paper-raise:  #1A1913;
  --ink:          #EDE8DC;
  --ink-2:        #BDB6A7;
  --ink-3:        #9A9384;
  --ink-4:        #89826F;
  --rule:         #2B2921;
  --rule-2:       #3B382E;
  --accent:       #E2703F;
  --accent-2:     #F08B5C;
  --accent-wash:  rgba(226, 112, 63, .10);
  --plate:        #080806;
  --plate-2:      #100F0C;
  --plate-fg:     #E9E4D8;
  --plate-dim:    #857F72;
  --plate-rule:   #26241E;
  --sel:          rgba(226, 112, 63, .22);
  --grain-op:     .05;
  --shadow-plate: none;
  color-scheme: dark;
}

/* ── reset & base ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.0625rem, .42vw + .96rem, 1.1875rem);
  line-height: 1.62;
  font-weight: 380;
  font-variant-numeric: oldstyle-nums proportional-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color .4s var(--ease), color .4s var(--ease);
}

::selection { background: var(--sel); color: var(--ink); }

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
code, pre, kbd { font-family: var(--mono); }
em { font-style: italic; }
s { text-decoration-thickness: 1px; text-decoration-color: var(--accent); }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* the rail — two hairlines running the length of the page, so the whole
   document reads as one ruled sheet */
.hero::before, .sec::before, .foot::before {
  content: "";
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: var(--rail); transform: translateX(-50%);
  border-inline: 1px solid var(--rule);
  pointer-events: none;
}
.sec--dark::before { border-color: var(--plate-rule); }
/* below this the rail would crowd the text, so it comes off */
@media (max-width: 700px) {
  .hero::before, .sec::before, .foot::before { display: none; }
}

.skip {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--paper);
  padding: .75rem 1.25rem; font-family: var(--mono); font-size: .8rem;
}
.skip:focus { left: 1rem; top: 1rem; }

:where(a, button, .tab):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 1px;
}

/* grain overlay */
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  opacity: var(--grain-op);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}
:root[data-theme="dark"] .grain { mix-blend-mode: screen; }

/* ── shared type atoms ─────────────────────────────────────────────── */
.eyebrow, .sec__num, .sec__kicker, .caption, .term__label, .copy,
.path__tag, .lim__k, .foot__lab, .marginnote, .callout__lab,
.smallprint__lab, .ledger__t, .ledger__s, .stat__cap-d, .tab, .btn {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums lining-nums;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .6875rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow__dot {
  width: 6px; height: 6px; background: var(--accent); border-radius: 50%;
  box-shadow: 0 0 0 3px var(--accent-wash);
  animation: pulse 3.4s var(--ease) infinite;
}
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .35 } }

.caption {
  font-size: .75rem; line-height: 1.6; color: var(--ink-3);
  letter-spacing: .005em;
}
.caption--inv { color: var(--plate-dim); }

.marginnote {
  margin-top: 1.25rem;
  font-size: .6875rem; line-height: 1.65; color: var(--ink-4);
  letter-spacing: .01em;
  border-top: 1px solid var(--rule);
  padding-top: .75rem;
  max-width: 13rem;
}
.marginnote code { font-size: .95em; color: var(--ink-3); }

/* ── buttons ───────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: .75rem; letter-spacing: .1em; text-transform: uppercase;
  text-decoration: none; padding: .875rem 1.375rem;
  border: 1px solid transparent; border-radius: 0;
  transition: background-color .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
  white-space: nowrap;
}
.btn__arw { transition: transform .3s var(--ease-out); display: inline-block; }
.btn:hover .btn__arw { transform: translateX(4px); }

.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--accent); }

.btn--line { border-color: var(--rule-2); color: var(--ink); }
.btn--line:hover { border-color: var(--ink); background: var(--paper-raise); }

.btn--inv { background: var(--accent); color: #FFF6EE; }
.btn--inv:hover { background: var(--plate-fg); color: var(--plate); }

.btn--ghost {
  padding: .5rem .75rem; letter-spacing: .08em; color: var(--ink-2);
  border-color: transparent;
}
.btn--ghost svg { width: 14px; height: 14px; }
.btn--ghost:hover { color: var(--ink); border-color: var(--rule-2); }

/* ── nav ───────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 60;
  backdrop-filter: saturate(1.3) blur(14px);
  -webkit-backdrop-filter: saturate(1.3) blur(14px);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  transition: background-color .3s var(--ease);
}
.nav__in {
  max-width: var(--wrap); margin-inline: auto;
  padding: .875rem var(--gutter);
  display: flex; align-items: center; gap: 1.5rem;
}
.nav__rule { height: 1px; background: var(--rule); opacity: 0; transition: opacity .3s var(--ease); }
.nav.is-stuck .nav__rule { opacity: 1; }

.brand {
  display: inline-flex; align-items: baseline; gap: .5rem;
  text-decoration: none; margin-right: auto;
}
.brand__mark { align-self: center; color: var(--accent); }
.brand__mark svg { width: 19px; height: 19px; }
.brand__word {
  font-size: 1.375rem; letter-spacing: -.015em; font-weight: 500;
  line-height: 1;
}
.brand__ver {
  font-family: var(--mono); font-size: .625rem; color: var(--ink-4);
  letter-spacing: .06em; padding-left: .1rem;
}

.nav__links { display: flex; gap: 1.75rem; }
.nav__links a {
  font-family: var(--mono); font-size: .75rem; letter-spacing: .04em;
  color: var(--ink-3); text-decoration: none; position: relative; padding-block: .25rem;
  transition: color .2s var(--ease);
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px;
  background: var(--accent); transition: right .35s var(--ease-out);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { right: 0; }

.nav__act { display: flex; align-items: center; gap: .5rem; }

.theme {
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid transparent; border-radius: 0; color: var(--ink-3);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.theme:hover { color: var(--ink); border-color: var(--rule-2); }
.theme svg { width: 15px; height: 15px; }
.theme__moon { display: none; }
:root[data-theme="dark"] .theme__sun { display: none; }
:root[data-theme="dark"] .theme__moon { display: block; }

@media (max-width: 860px) {
  .nav__links { display: none; }
}
@media (max-width: 520px) {
  .nav__gh .btn__t, .nav__gh { font-size: 0; padding: .5rem; }
  .nav__gh svg { width: 16px; height: 16px; }
}

/* ── hero ──────────────────────────────────────────────────────────── */
.hero { position: relative; padding-top: clamp(3.5rem, 9vw, 7rem); }
.hero__paper {
  position: absolute; inset: -6rem 0 auto 0; height: 46rem; z-index: -1;
  background: linear-gradient(to bottom, var(--accent-wash), transparent 48%);
  opacity: .5;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
}

.hero__in { padding-bottom: clamp(3rem, 6vw, 5rem); }

.hero__h {
  margin-top: 1.5rem;
  font-size: clamp(2.375rem, 5.2vw, 4.5rem);
  line-height: 1;
  letter-spacing: -.028em;
  font-weight: 400;
  text-wrap: balance;
}
.hero__h em {
  font-style: italic; font-weight: 300;
  color: var(--accent);
  letter-spacing: -.02em;
}

.hero__sub {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  max-width: 36rem;
  font-size: clamp(1.125rem, .6vw + 1rem, 1.375rem);
  line-height: 1.55;
  color: var(--ink-2);
  text-wrap: pretty;
}

.hero__split {
  margin-top: clamp(2rem, 4vw, 3rem);
  display: grid; grid-template-columns: minmax(0, 40rem) 17rem;
  justify-content: space-between;
  gap: var(--col-gap); align-items: end;
}
.hero__term .caption { margin-top: .875rem; }

.hero__cta {
  margin-top: 2.25rem;
  display: flex; flex-wrap: wrap; gap: .75rem;
}

.hero__side { max-width: 17rem; padding-bottom: .25rem; }
.hero__fine {
  font-size: .9375rem; line-height: 1.6; color: var(--ink-3);
  padding-left: 1rem; border-left: 1px solid var(--rule-2);
}
.fine-em { color: var(--ink); font-style: italic; }

.spec {
  margin-top: 1.75rem; padding-top: 1rem; border-top: 1px solid var(--rule);
  font-family: var(--mono); font-size: .6875rem;
  font-variant-numeric: tabular-nums lining-nums;
}
.spec > div {
  display: flex; justify-content: space-between; gap: 1rem;
  padding-block: .4rem; border-bottom: 1px dotted var(--rule);
}
.spec > div:last-child { border-bottom: 0; }
.spec dt { color: var(--ink-4); letter-spacing: .1em; text-transform: uppercase; }
.spec dd { color: var(--ink-2); text-align: right; }

@media (max-width: 1080px) {
  .hero__split { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
  .hero__side { max-width: 30rem; }
  .spec { max-width: 22rem; }
}

/* ticker strip */
.hero__ticker { border-block: 1px solid var(--rule); background: var(--paper-2); }
.ticker {
  display: flex; align-items: center; flex-wrap: wrap; gap: 0;
  font-family: var(--mono); font-size: .6875rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-3);
  padding-block: .875rem;
}
.ticker span { padding-right: 1.5rem; }
.ticker b {
  color: var(--ink); font-weight: 600;
  font-variant-numeric: tabular-nums lining-nums;
}
.ticker i { width: 1px; height: .875rem; background: var(--rule-2); margin-right: 1.5rem; }
@media (max-width: 720px) {
  .ticker { row-gap: .5rem; }
  .ticker i { display: none; }
}

/* ── terminal plate ────────────────────────────────────────────────── */
.term {
  background: var(--plate);
  border: 1px solid var(--plate-rule);
  border-radius: 0;
  box-shadow: var(--shadow-plate);
  overflow: hidden;
  position: relative;
}
.term::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(160deg, rgba(255,255,255,.045), transparent 38%);
}
.term__bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .5rem .5rem .5rem .875rem;
  border-bottom: 1px solid var(--plate-rule);
  background: var(--plate-2);
}
.term__label {
  font-size: .625rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--plate-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.term__body {
  padding: 1.125rem .875rem 1.25rem;
  overflow-x: auto;
  font-size: .8125rem; line-height: 1.75;
  color: var(--plate-fg);
  -webkit-overflow-scrolling: touch;
}
.term__body code { white-space: pre; }

/* on a phone a command that scrolls sideways is a command you cannot read */
@media (max-width: 620px) {
  .term__body { font-size: .75rem; padding-inline: .75rem; }
  .term__body code { white-space: pre-wrap; }
}

.copy {
  display: inline-flex; align-items: center; gap: .4rem; flex: none;
  font-size: .625rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--plate-dim); padding: .375rem .5rem; border-radius: 0;
  border: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.copy svg { width: 12px; height: 12px; }
.copy:hover { color: var(--plate-fg); border-color: var(--plate-rule); background: rgba(255,255,255,.04); }
.copy.is-done { color: #8FBF7A; }

/* syntax tokens */
.tk-p { color: #857F6E; user-select: none; }
.tk-c { color: #E8B15C; }
.tk-s { color: var(--plate-fg); }
.tk-f { color: #7FA6C4; }
.tk-v { color: #9BBE86; }
.tk-k { color: #D98A72; }
.tk-o { color: #857F6E; }

/* ── section shell ─────────────────────────────────────────────────── */
.sec {
  padding-block: clamp(4rem, 9vw, 8rem);
  border-top: 1px solid var(--rule);
  position: relative;
}
.sec--alt { background: var(--paper-2); }
.sec--dark {
  background: var(--plate);
  color: var(--plate-fg);
  border-top-color: var(--plate);
  --rule: var(--plate-rule);
  --rule-2: #3A382E;
  --ink: var(--plate-fg);
  --ink-2: #BDB6A7;
  --ink-3: var(--plate-dim);
  --ink-4: #857F72;
}

.sec__grid {
  display: grid;
  grid-template-columns: var(--aside) minmax(0, 1fr);
  gap: var(--col-gap);
  align-items: start;
}
.sec__aside { position: sticky; top: 6rem; }
.sec__num {
  font-size: .75rem; letter-spacing: .12em; color: var(--accent);
  font-weight: 500;
}
.sec__kicker {
  margin-top: .5rem;
  font-size: .75rem; letter-spacing: .06em; line-height: 1.5;
  color: var(--ink-3); text-transform: uppercase;
  max-width: 12rem;
}
.sec__body { min-width: 0; }

@media (max-width: 900px) {
  .sec__grid { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .sec__aside {
    position: static;
    display: flex; flex-wrap: wrap; align-items: baseline; gap: .875rem;
    border-bottom: 1px solid var(--rule); padding-bottom: .875rem;
  }
  .sec__kicker { max-width: none; margin-top: 0; }
  .marginnote { display: none; }
}

.lede {
  max-width: var(--prose);
  font-size: clamp(1.1875rem, .7vw + 1rem, 1.5rem);
  line-height: 1.5; color: var(--ink-2); letter-spacing: -.008em;
  text-wrap: pretty;
}

/* ── 01 statements ─────────────────────────────────────────────────── */
.statements { display: grid; }
.stmt {
  max-width: 46rem;
  font-size: clamp(1.375rem, 1.5vw + 1rem, 2.125rem);
  line-height: 1.34; letter-spacing: -.018em; font-weight: 380;
  padding-block: clamp(1.5rem, 3vw, 2.25rem);
  border-bottom: 1px solid var(--rule);
  text-wrap: pretty;
}
.stmt:first-child { padding-top: 0; }
.stmt:last-child { border-bottom: 0; padding-bottom: 0; }
.stmt em { color: var(--accent); font-style: italic; }

/* ── 02 mechanisms ─────────────────────────────────────────────────── */
.mech { list-style: none; padding: 0; display: grid; }
.mech__it {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  gap: 0 1rem;
  padding-block: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--rule);
}
.mech__it:first-child { padding-top: 0; }
.mech__it:last-child { border-bottom: 0; padding-bottom: 0; }

.mech__ord {
  font-family: var(--mono); font-size: .75rem; letter-spacing: .1em;
  color: var(--accent); padding-top: .55rem; text-transform: lowercase;
}
.mech__h {
  font-size: clamp(1.25rem, 1vw + 1rem, 1.625rem);
  line-height: 1.28; letter-spacing: -.018em; font-weight: 500;
  text-wrap: balance;
}
.mech__p {
  grid-column: 2; margin-top: .75rem; max-width: var(--prose);
  color: var(--ink-2); text-wrap: pretty;
}

@media (max-width: 620px) {
  .mech__it { grid-template-columns: minmax(0, 1fr); }
  .mech__ord { padding-top: 0; margin-bottom: .5rem; }
  .mech__p { grid-column: 1; }
}

/* diagram */
.diagram {
  grid-column: 2; margin-top: 2rem;
  border: 1px solid var(--rule); border-radius: 0;
  background: var(--paper-raise);
  padding: 1.5rem 1.25rem 1rem;
  max-width: 44rem;
}
@media (max-width: 620px) { .diagram { grid-column: 1; } }
.diagram svg { width: 100%; height: auto; overflow: visible; }
.diagram .caption { margin-top: 1rem; border-top: 1px solid var(--rule); padding-top: .75rem; }

.dg-box { fill: none; stroke: var(--rule-2); stroke-width: 1; }
.dg-box--soft { stroke-dasharray: 3 3; }
.dg-box--key { fill: var(--accent-wash); stroke: var(--accent); }
.dg-l { stroke: var(--rule-2); stroke-width: 1; fill: none; color: var(--rule-2); }
.dg-l--soft { stroke-dasharray: 3 3; }
.dg-l--dash { stroke-dasharray: 2 3; stroke: var(--ink-4); color: var(--ink-4); }
.dg-t {
  font-family: var(--mono); font-size: 11px; fill: var(--ink-2);
  letter-spacing: .02em;
}
.dg-t--key { fill: var(--accent); }
.dg-t--dim { fill: var(--ink-3); font-size: 10px; }
.dg-t--note { fill: var(--ink-4); font-size: 9.5px; }

/* correction ledger */
.ledger {
  grid-column: 2; margin-top: 1.75rem; max-width: 40rem;
  border: 1px solid var(--rule); border-radius: 0;
  background: var(--paper-raise); overflow: hidden;
}
@media (max-width: 620px) { .ledger { grid-column: 1; } }
.ledger__row {
  display: grid; grid-template-columns: 6.5rem minmax(0,1fr) auto;
  gap: 1rem; align-items: baseline;
  padding: .875rem 1rem; border-bottom: 1px solid var(--rule);
  font-size: .875rem;
}
.ledger__t { font-size: .6875rem; color: var(--ink-4); letter-spacing: .04em; }
.ledger__b { color: var(--ink); }
.ledger__row--old .ledger__b { color: var(--ink-4); }
.ledger__s {
  font-size: .5625rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-4); border: 1px solid var(--rule-2); padding: .15rem .4rem; border-radius: 0;
}
.ledger__s--live { color: var(--accent); border-color: var(--accent); background: var(--accent-wash); }
.ledger__why {
  padding: .75rem 1rem; font-family: var(--mono); font-size: .6875rem;
  color: var(--ink-3); letter-spacing: .01em;
}
.ledger__whylab { color: var(--accent); margin-right: .5rem; }
@media (max-width: 560px) {
  .ledger__row { grid-template-columns: minmax(0, 1fr) auto; gap: .5rem 1rem; }
  .ledger__t { grid-column: 1 / -1; }
}

/* ── 03 evidence ───────────────────────────────────────────────────── */
.stat {
  display: grid; grid-template-columns: minmax(0, 17rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center;
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--plate-rule);
}
@media (max-width: 820px) { .stat { grid-template-columns: 1fr; } }

.stat__big {
  display: flex; align-items: baseline;
  font-size: clamp(4rem, 9vw, 7rem); line-height: .84;
  letter-spacing: -.045em; font-weight: 400;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--plate-fg);
}
.stat__pct { font-size: .42em; color: var(--accent); letter-spacing: -.01em; margin-left: .1em; }
.stat__cap {
  margin-top: 1.125rem; font-size: .9375rem; line-height: 1.5; color: var(--ink-2);
}
.stat__cap-d {
  display: inline-block; margin-top: .375rem;
  font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-4);
}

.plot svg { width: 100%; height: auto; overflow: visible; }
.plot .caption { margin-top: 1.25rem; max-width: 34rem; }

.pl-ax { stroke: var(--plate-rule); stroke-width: 1; }
.pl-tk line { stroke: var(--plate-rule); stroke-width: 1; }
.pl-tk text {
  font-family: var(--mono); font-size: 9.5px; fill: var(--ink-4);
  letter-spacing: .04em;
}
.pl-mean { stroke: var(--accent); stroke-width: 1; stroke-dasharray: 3 3; opacity: .85; }
.pl-meanlab {
  font-family: var(--mono); font-size: 9.5px; fill: var(--accent);
  letter-spacing: .1em; text-transform: uppercase;
}
.pl-stem { stroke: var(--plate-rule); stroke-width: 1; }
.pl-dot { fill: var(--plate-fg); }
.pl-lab {
  font-family: var(--mono); font-size: 10px; fill: var(--ink-2);
  letter-spacing: .04em;
}

.pull {
  margin-block: clamp(2rem, 4vw, 3rem);
  max-width: 34rem;
  font-size: clamp(1.5rem, 2.2vw + 1rem, 2.375rem);
  line-height: 1.24; letter-spacing: -.024em; font-style: italic; font-weight: 300;
  color: var(--plate-fg);
  text-wrap: balance;
}

.ev-notes {
  display: grid; gap: 1.125rem; max-width: var(--prose);
  color: var(--ink-2); font-size: 1rem; line-height: 1.62;
  margin-bottom: 2.25rem;
}
.ev-notes code, .lim__h code, .toolist code, .callout code, .smallprint code, .tabs__lead code {
  font-size: .875em; padding: .1em .35em; border-radius: 0;
  background: var(--accent-wash); color: var(--accent);
  letter-spacing: -.01em;
}
.sec--dark .ev-notes code { background: rgba(226,112,63,.14); }

/* correction applied to the page's own copy — same component language as
   the memory ledger above, deliberately */
.amend {
  max-width: 44rem; margin-bottom: 2.25rem;
  border: 1px solid var(--rule-2);
}
.amend__title {
  font-family: var(--mono); font-size: .625rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-4);
  padding: .75rem 1.125rem; border-bottom: 1px solid var(--rule);
}
.amend__row {
  display: grid; grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 1rem; align-items: baseline;
  padding: 1rem 1.125rem; border-bottom: 1px solid var(--rule);
  font-size: .9375rem; line-height: 1.55; color: var(--ink);
}
.amend__row--old { color: var(--ink-4); }
.amend__row--old s { text-decoration-color: var(--accent); }
.amend__tag {
  font-family: var(--mono); font-size: .5625rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-4);
  border: 1px solid var(--rule-2); padding: .15rem .4rem; justify-self: start;
}
.amend__tag--live { color: var(--accent); border-color: var(--accent); background: var(--accent-wash); }
.amend__why {
  padding: .875rem 1.125rem; font-size: .8125rem; line-height: 1.6;
  color: var(--ink-3); font-style: italic;
}
.amend__whylab {
  font-family: var(--mono); font-size: .5625rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); font-style: normal;
  margin-right: .625rem;
}
@media (max-width: 560px) {
  .amend__row { grid-template-columns: minmax(0, 1fr); gap: .5rem; }
}

/* ── 04 paths ──────────────────────────────────────────────────────── */
.paths {
  margin-top: clamp(2rem, 4vw, 3rem);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1px; background: var(--rule);
  border: 1px solid var(--rule); border-radius: 0; overflow: hidden;
}
.path {
  background: var(--paper); padding: clamp(1.5rem, 3vw, 2.25rem);
  transition: background-color .3s var(--ease);
}
.sec--alt .path { background: var(--paper-raise); }
.path:hover { background: var(--paper-raise); }
.path--now { position: relative; }
.path--now::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 2px; background: var(--accent);
}
.path__tag {
  font-size: .625rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-4);
}
.path--now .path__tag { color: var(--accent); }
.path__h {
  margin-top: .875rem; font-size: 1.5rem; line-height: 1.2;
  letter-spacing: -.02em; font-weight: 500;
}
.path__p { margin-top: .875rem; color: var(--ink-2); font-size: 1rem; line-height: 1.6; }
.path__note {
  margin-top: 1.125rem; padding-top: 1.125rem; border-top: 1px solid var(--rule);
  font-size: .9375rem; font-style: italic; color: var(--ink-3);
}
.toolist { list-style: none; padding: 0; margin-top: 1.25rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.toolist code { font-size: .75rem; padding: .3rem .5rem; }

/* ── 05 limits ─────────────────────────────────────────────────────── */
.limits { margin-top: clamp(2rem, 4vw, 3rem); display: grid; }
.lim {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr) auto;
  gap: 0 1rem; align-items: start;
  padding-block: 1.75rem;
  border-top: 1px solid var(--rule);
  position: relative;
}
.lim:last-child { border-bottom: 1px solid var(--rule); }
.lim__k { font-size: .6875rem; color: var(--ink-4); letter-spacing: .1em; padding-top: .45rem; }
.lim__c { min-width: 0; }
.lim__h {
  font-size: clamp(1.0625rem, .55vw + .95rem, 1.25rem);
  line-height: 1.35; letter-spacing: -.012em; font-weight: 500;
  text-wrap: pretty;
}
.lim__h::before {
  content: "—"; color: var(--accent); margin-right: .5rem;
  font-family: var(--mono); font-size: .75em; vertical-align: .12em;
}
.lim__p { margin-top: .625rem; color: var(--ink-3); font-size: .9375rem; line-height: 1.6; max-width: 38rem; }

.lim__meter {
  align-self: center; display: grid; gap: .375rem; width: 7rem; justify-items: end;
}
.lim__meter span {
  display: block; width: 100%; height: 3px; background: var(--rule);
  position: relative; overflow: hidden;
}
.lim__meter span::after {
  content: ""; position: absolute; inset: 0 auto 0 0; width: var(--w);
  background: var(--accent);
  transform-origin: left;
  transition: transform 1.1s var(--ease-out) .2s;
}
.js .lim__meter span::after { transform: scaleX(0); }
.js .reveal.is-in .lim__meter span::after { transform: scaleX(1); }
.lim__meter b {
  font-family: var(--mono); font-size: .6875rem; font-weight: 500; color: var(--accent);
  letter-spacing: .06em;
}
@media (max-width: 720px) {
  .lim { grid-template-columns: 2.5rem minmax(0,1fr); }
  .lim__meter { grid-column: 2; justify-items: start; margin-top: 1rem; }
}

/* a limitation that turned out to be false: struck, kept, and explained */
.lim--out .lim__k { color: var(--accent); }
.lim--out .lim__h { color: var(--ink-4); }
.lim--out .lim__h::before { color: var(--ink-4); }
.lim--out .lim__p { color: var(--ink-4); }
.lim--out s { text-decoration-color: var(--accent); }
.lim__tag {
  display: inline-block; vertical-align: .18em; margin-left: .625rem;
  font-family: var(--mono); font-size: .5625rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); font-weight: 500;
  border: 1px solid var(--accent); background: var(--accent-wash);
  padding: .15rem .4rem;
}
.lim__why {
  margin-top: .875rem; padding: .75rem 0 0;
  border-top: 1px dotted var(--rule-2);
  font-size: .875rem; line-height: 1.6; color: var(--ink-3); font-style: italic;
  max-width: 38rem;
}
.lim__whylab {
  font-family: var(--mono); font-size: .5625rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); font-style: normal;
  margin-right: .625rem;
}
.lim__why code { font-style: normal; }

.limits__foot { margin-top: 1.75rem; font-size: .9375rem; color: var(--ink-3); }
.limits__foot a { color: var(--accent); text-underline-offset: .2em; text-decoration-thickness: 1px; }

/* ── 06 get started ────────────────────────────────────────────────── */
.step {
  padding-block: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--rule);
}
.step:first-child { padding-top: 0; }
.step__h {
  display: flex; align-items: baseline; gap: .875rem;
  font-size: clamp(1.25rem, 1vw + 1rem, 1.625rem);
  line-height: 1.25; letter-spacing: -.018em; font-weight: 500;
  margin-bottom: 1.375rem;
}
.step__n {
  font-family: var(--mono); font-size: .75rem; color: var(--accent);
  border: 1px solid var(--accent); border-radius: 50%;
  width: 1.6rem; height: 1.6rem; display: inline-grid; place-items: center; flex: none;
  align-self: center;
}
.step .term { max-width: 46rem; }
.step__or {
  margin-block: 1.125rem .875rem; font-size: .9375rem; color: var(--ink-3); font-style: italic;
}
.step__p { margin-top: 1.25rem; max-width: var(--prose); color: var(--ink-2); font-size: 1rem; line-height: 1.62; }

/* tabs */
/* the optional fourth step reads as an aside, not another requirement */
.step--opt .step__h { color: var(--ink-2); }
.step__n--opt { border-style: dashed; }
.step__opt {
  font-family: var(--mono); font-size: .5625rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-4);
  border: 1px solid var(--rule-2); padding: .15rem .4rem;
  align-self: center; margin-left: .25rem;
}
.step__p--lead { margin-top: 0; margin-bottom: 1.375rem; }
.step__p--lead em { color: var(--ink); }

.tabs { max-width: 46rem; }
.tabs__bar { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--rule); margin-bottom: 1.25rem; }
.tab {
  font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-4); padding: .625rem .875rem; position: relative;
  transition: color .2s var(--ease);
}
.tab:first-child { padding-left: 0; }
.tab::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease-out);
}
.tab:first-child::after { left: 0; }
.tab:hover { color: var(--ink-2); }
.tab.is-on { color: var(--accent); }
.tab.is-on::after { transform: scaleX(1); }
.tabs__lead { font-size: .9375rem; color: var(--ink-3); margin-bottom: .875rem; }
.tabs__after {
  margin-block: 1.375rem .875rem;
  font-size: .9375rem; line-height: 1.65; color: var(--ink-3);
}
/* long flag strings only get broken mid-token when there is no room to spare */
@media (max-width: 620px) {
  .tabs__after code, .tabs__lead code, .callout code { overflow-wrap: anywhere; }
}
.tabs__panel[hidden] { display: none; }
.js .tabs__panel { animation: fadeUp .4s var(--ease-out); }
/* without script there are no tabs, so both configs are simply printed */
html:not(.js) .tabs__bar { display: none; }
html:not(.js) .tabs__panel[hidden] { display: block; margin-top: 2rem; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(6px); } }

.callout {
  margin-top: 1.25rem; padding: 1rem 1.125rem;
  border: 1px solid var(--rule); border-left: 2px solid var(--accent); border-radius: 0;
  background: var(--paper-raise);
  font-size: .9375rem; line-height: 1.6; color: var(--ink-2);
}
.callout__lab, .smallprint__lab {
  display: inline-block; margin-right: .625rem;
  font-size: .5625rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent);
  vertical-align: .12em;
}
.smallprint {
  margin-top: 2rem; font-size: .875rem; color: var(--ink-3); max-width: var(--prose);
  line-height: 1.6;
}

/* ── footer ────────────────────────────────────────────────────────── */
.foot {
  position: relative;
  background: var(--plate); color: var(--plate-fg);
  padding-block: clamp(3.5rem, 7vw, 6rem) 2rem;
  --rule: var(--plate-rule); --ink-3: var(--plate-dim); --ink-4: #857F72;
}
.foot__line {
  font-size: clamp(1.625rem, 3.4vw + 1rem, 3.25rem);
  line-height: 1.16; letter-spacing: -.03em; font-weight: 300; font-style: italic;
  max-width: 24ch; text-wrap: balance;
}
.foot__grid {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding-top: 2rem; border-top: 1px solid var(--plate-rule);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 2rem;
}
.foot__lab {
  font-size: .625rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--plate-dim); margin-bottom: .875rem;
}
.foot__col a, .foot__t {
  display: block; font-size: .9375rem; line-height: 1.9;
  color: var(--plate-dim); text-decoration: none;
  transition: color .2s var(--ease);
}
.foot__col a:hover { color: var(--plate-fg); }
.foot__ver { font-family: var(--mono); font-size: .8125rem; color: var(--accent); }
.foot__base {
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--plate-rule);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  font-family: var(--mono); font-size: .625rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--plate-dim);
}

/* ── toast ─────────────────────────────────────────────────────────── */
.toast {
  position: fixed; z-index: 120; left: 50%; bottom: 2rem;
  transform: translate(-50%, 1.5rem);
  background: var(--ink); color: var(--paper);
  font-family: var(--mono); font-size: .6875rem; letter-spacing: .12em; text-transform: uppercase;
  padding: .625rem 1.125rem; border-radius: 0;
  opacity: 0; pointer-events: none;
  transition: opacity .25s var(--ease), transform .35s var(--ease-out);
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ── motion ────────────────────────────────────────────────────────── */
/* Everything below is opt-in: without JS the .js class is absent and the page
   renders complete and static. Nothing here gates content on script. */
.js .rise { opacity: 0; transform: translateY(14px); animation: rise .9s var(--ease-out) forwards; animation-delay: var(--d, 0ms); }
@keyframes rise { to { opacity: 1; transform: none; } }

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); }
.js .reveal.is-in { opacity: 1; transform: none; }

.js .pl-run { opacity: 0; transform: translateY(8px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); transition-delay: calc(var(--i) * 140ms + 200ms); }
.js .reveal.is-in .pl-run { opacity: 1; transform: none; }
.js .pl-mean, .js .pl-meanlab { opacity: 0; transition: opacity .7s var(--ease) .7s; }
.js .reveal.is-in .pl-mean { opacity: .85; }
.js .reveal.is-in .pl-meanlab { opacity: 1; }
.pl-mean { opacity: .85; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .js .rise, .js .reveal { opacity: 1; transform: none; }
  .js .pl-run { opacity: 1; transform: none; }
  .js .pl-mean { opacity: .85; } .js .pl-meanlab { opacity: 1; }
  .lim__meter span::after { transform: scaleX(1); }
}

/* print */
@media print {
  .nav, .grain, .toast, .hero__paper, .hero__ticker { display: none; }
  body { background: #fff; color: #000; }
  .sec--dark, .foot { background: #fff; color: #000; }
}