/* ============================================================
   Human Language Activism: field-guide theme
   ============================================================ */
:root {
  --paper: #efe5cf;
  --paper-2: #e6d9bc;
  --card: #f6eedc;
  --ink: #1d2c46;
  --ink-soft: #3d4a60;
  --muted: #6b6a5e;
  --moss: #4d6a37;
  --sea: #2b4a73;
  --rust: #b2462a;
  --rust-soft: #d9826a;
  --line: rgba(29, 44, 70, .22);
  --shadow: 0 1px 0 rgba(29,44,70,.08), 0 10px 30px -12px rgba(29,44,70,.35);
  --grain-opacity: .35;
  --maxw: 1080px;
  --text: 680px;
  --f-display: "Fraunces", Georgia, serif;
  --f-body: "Source Serif 4", Georgia, serif;
  --f-hand: "Caveat", "Segoe Print", cursive;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121a27; --paper-2: #182335; --card: #1c2940;
    --ink: #ece2c9; --ink-soft: #c9c0a8; --muted: #9a9785;
    --moss: #93b277; --sea: #7fa3d1; --rust: #e0805f; --rust-soft: #b5604a;
    --line: rgba(236, 226, 201, .18);
    --shadow: 0 10px 30px -12px rgba(0,0,0,.7);
    --grain-opacity: .12; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #121a27; --paper-2: #182335; --card: #1c2940;
  --ink: #ece2c9; --ink-soft: #c9c0a8; --muted: #9a9785;
  --moss: #93b277; --sea: #7fa3d1; --rust: #e0805f; --rust-soft: #b5604a;
  --line: rgba(236, 226, 201, .18);
  --shadow: 0 10px 30px -12px rgba(0,0,0,.7);
  --grain-opacity: .12; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 1.125rem/1.65 var(--f-body);
  overflow-x: hidden;
}
/* paper grain */
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100;
  opacity: var(--grain-opacity); mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35 0 0 0 0 .3 0 0 0 0 .2 0 0 0 .35 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--sea); text-underline-offset: 3px; }
a:hover { color: var(--rust); }
strong { font-weight: 600; }
em { font-style: italic; }
.mono { font-family: var(--f-mono); font-size: .9em; letter-spacing: -.01em; }
.note { font-family: var(--f-hand); font-size: 1.45rem; line-height: 1.2; color: var(--rust); margin: 0 0 .3rem; }
.fine { font-size: .88rem; color: var(--muted); }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper); padding: .5rem 1rem; z-index: 200; }
.skip:focus { left: 1rem; }
:focus-visible { outline: 3px solid var(--rust); outline-offset: 3px; border-radius: 4px; }

.wrap { width: min(var(--maxw), 100% - 32px); margin-inline: auto; }

/* ---------- top bar ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 1rem;
  padding: .55rem max(16px, calc((100vw - var(--maxw)) / 2));
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  transform: translateY(-100%); transition: transform .35s ease;
}
.topbar.show { transform: none; }
.brand { font: 800 1rem var(--f-display); color: var(--ink); text-decoration: none; letter-spacing: .04em; white-space: nowrap; }
.brand span { font-weight: 400; font-style: italic; color: var(--muted); letter-spacing: 0; }
.chapters { display: flex; gap: .2rem; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.chapters::-webkit-scrollbar { display: none; }
.chapters a {
  font: 500 .82rem var(--f-mono); color: var(--ink-soft); text-decoration: none;
  padding: .3rem .55rem; border-radius: 999px; white-space: nowrap;
}
.chapters a.active { background: var(--ink); color: var(--paper); }
.theme-toggle {
  flex: none; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line);
  background: transparent; color: var(--ink); cursor: pointer; display: grid; place-items: center;
}
.theme-toggle svg { width: 18px; height: 18px; fill: currentColor; }
.progress { position: absolute; left: 0; bottom: -1px; height: 2px; background: var(--rust); width: 0; }
@media (max-width: 640px) {
  .brand span { display: none; }
  .chapters a { padding: .3rem .4rem; font-size: .74rem; }
}

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: grid; align-content: end; overflow: hidden; }
.hero-art { position: absolute; inset: 0; }
.hero-art img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 40%; transform-origin: 50% 60%; }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, transparent 22%, color-mix(in srgb, var(--paper) 78%, transparent) 52%, var(--paper) 92%);
}
.hero-words { position: absolute; inset: 2% 0 62% 0; pointer-events: none; }
.hero-words span {
  position: absolute; font-family: var(--f-display); font-style: italic; color: #1d2c46;
  opacity: 0; white-space: nowrap; text-shadow: 0 0 6px #efe5cf, 0 0 2px #efe5cf;
  animation: drift var(--d, 14s) linear var(--delay, 0s) infinite;
}
@keyframes drift {
  0% { opacity: 0; transform: translate(0, 10px); }
  15%, 75% { opacity: .85; }
  100% { opacity: 0; transform: translate(var(--dx, 40px), -40px); }
}
.hero-bear {
  position: absolute; width: clamp(40px, 6vw, 80px); left: 6%; top: 74%;
  fill: #1d2c46; opacity: 0; z-index: 1;
}
.hero-text { position: relative; z-index: 2; padding: 0 16px 9vh; width: min(var(--maxw), 100%); margin-inline: auto; }
.kicker { font: 500 .8rem var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink); margin: 0 0 1rem; font-weight: 600; text-shadow: 0 0 4px var(--paper), 0 0 10px var(--paper); }
h1 {
  font: 800 clamp(2.8rem, 9vw, 6.5rem)/.92 var(--f-display); letter-spacing: -.03em;
  margin: 0 0 1rem; font-variation-settings: "opsz" 144;
}
h1 em { color: var(--rust); font-weight: 400; }
.lede { font-size: clamp(1.15rem, 2.2vw, 1.5rem); max-width: 34ch; margin: 0 0 1.2rem; }
.search-pill {
  display: block; max-width: 34rem; line-height: 1.5;
  border: 1px dashed var(--ink-soft); border-radius: 8px; padding: .4rem .8rem; margin: 0 0 1.5rem;
  font-size: .9rem; background: color-mix(in srgb, var(--paper) 70%, transparent);
}
.search-pill strong { color: var(--rust); font-size: 1.1rem; }
.scroll-cue { display: inline-block; font-family: var(--f-hand); font-size: 1.5rem; color: var(--ink); text-decoration: none; }
.scroll-cue span { display: inline-block; animation: bob 1.6s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(5px); } }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-words span, .scroll-cue span { animation: none; opacity: .7; }
}

/* ---------- definition ---------- */
.definition { padding: 12vh 0 6vh; }
.dict {
  max-width: var(--text); margin: 0 auto 10vh; padding: 1.6rem 1.8rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 4px; box-shadow: var(--shadow);
  position: relative;
}
.dict::before { content: ""; position: absolute; left: 1.8rem; right: 1.8rem; top: .7rem; border-top: 3px double var(--line); }
.dict-word { font: 600 1.6rem var(--f-display); margin: .5rem 0 .6rem; }
.dict-pron { font: 400 1rem var(--f-body); color: var(--muted); }
.dict-pos { font: italic 400 1rem var(--f-body); color: var(--rust); }
.dict-def { margin: 0 0 .8rem; }
.dict-def .num { font-weight: 600; margin-right: .3rem; }
.dict-ety { margin: 0; font-size: .95rem; color: var(--muted); }
.imagine { max-width: var(--text); margin: 0 auto; }
.imagine p { font: 400 clamp(1.3rem, 3vw, 1.9rem)/1.35 var(--f-display); margin: 0 0 6vh; }
.imagine p.strong { color: var(--rust); font-style: italic; }

/* ---------- section titles ---------- */
.section-title { font: 600 clamp(1.9rem, 4.5vw, 3rem)/1.05 var(--f-display); letter-spacing: -.02em; margin: 0 0 1rem; }
.eyebrow { display: block; font: 500 .8rem var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--rust); margin-bottom: .5rem; }
.section-intro { max-width: var(--text); color: var(--ink-soft); }
h3 { font: 600 1.5rem/1.2 var(--f-display); margin: 0 0 .6rem; }
h4 { font: 600 1.25rem var(--f-display); margin: 0 0 .4rem; }

/* ---------- landscapes ---------- */
.landscapes { padding: 8vh 0; }
.land-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; margin: 2rem 0 4rem; }
.land-col { border-top: 2px solid var(--ink); padding-top: 1rem; }
.land-col:last-child { border-color: var(--rust); }
@media (max-width: 720px) { .land-grid { grid-template-columns: 1fr; gap: 1.5rem; } }
ul.ticks { list-style: none; padding: 0; margin: .5rem 0 0; }
ul.ticks li { padding-left: 1.6rem; position: relative; margin: .35rem 0; }
ul.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--moss); font-weight: 700; font-family: var(--f-hand); font-size: 1.3rem; line-height: 1.2; }

.doug { display: grid; grid-template-columns: minmax(0, 340px) 1fr; gap: 2.5rem; align-items: center; margin: 0; }
@media (max-width: 720px) { .doug { grid-template-columns: 1fr; } .doug .print { max-width: 300px; margin: 0 auto; } }
.print { background: #f6eedc; padding: 10px; box-shadow: var(--shadow); transform: rotate(-1.2deg); border: 1px solid rgba(29,44,70,.15); }
.doug figcaption p { margin: 0 0 1rem; }
blockquote { margin: 0; padding-left: 1rem; border-left: 3px solid var(--rust); font: italic 400 1.2rem/1.45 var(--f-display); }

/* ---------- bear scene ---------- */
.bear-scene { position: relative; margin-top: 6vh; }
.bear-sticky { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.bear-sticky img { width: 100%; height: 100%; object-fit: cover; object-position: 30% 50%; transform: scale(1.15); }
.bear-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(18,26,39,.0) 35%, rgba(18,26,39,.55) 100%); opacity: 0; }
.bear-steps { position: relative; margin-top: -100vh; margin-top: -100svh; padding: 50vh 16px 40vh; pointer-events: none; }
.bear-step {
  pointer-events: auto;
  width: min(440px, 100%); margin: 0 0 60vh auto; margin-right: max(16px, calc((100vw - var(--maxw)) / 2));
  background: color-mix(in srgb, #f6eedc 94%, transparent); color: #1d2c46;
  padding: 1.2rem 1.4rem; border-radius: 4px; box-shadow: 0 10px 40px -10px rgba(0,0,0,.5);
  font-size: 1.15rem;
}
.bear-step.big { font: 400 1.45rem/1.35 var(--f-display); width: min(560px, 100%); }
.bear-step.big strong { color: #b2462a; font-weight: 600; }
@media (max-width: 720px) { .bear-step { margin-right: auto; margin-left: auto; } }

.call { padding: 14vh 0 8vh; display: grid; gap: 3rem; justify-items: center; }
.call-line { font: 400 clamp(1.6rem, 4vw, 2.6rem)/1.25 var(--f-display); text-align: center; max-width: 22ch; margin: 0; }
.call-line strong { color: var(--rust); }
.scope-note { max-width: 560px; border: 1px dashed var(--line); padding: 1rem 1.3rem; border-radius: 6px; font-size: 1rem; color: var(--ink-soft); }
.scope-note p:last-child { margin: 0; }

/* ---------- part heads ---------- */
.part-head { padding: 16vh 0 6vh; text-align: center; }
.part-num { font: 500 .85rem var(--f-mono); letter-spacing: .2em; text-transform: uppercase; color: var(--rust); margin: 0 0 .4rem; }
.part-title { font: 800 clamp(2.6rem, 8vw, 5.5rem)/.95 var(--f-display); letter-spacing: -.03em; margin: 0 0 1rem; }
.part-sub { font-size: 1.25rem; color: var(--ink-soft); max-width: 36ch; margin: 0 auto; }

/* ---------- flood ---------- */
.flood { display: grid; gap: 4rem; padding-bottom: 6vh; }
.flood-panel { background: var(--card); border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow); padding: clamp(1rem, 3vw, 2rem); display: grid; gap: 1.2rem; }
.flood-control label { font: 600 1.3rem var(--f-display); display: block; margin-bottom: .6rem; }
.flood-control output { color: var(--rust); font-size: 1.4rem; }
input[type="range"] { width: 100%; accent-color: var(--rust); height: 28px; }
.flood-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 640px) { .flood-stats { grid-template-columns: 1fr; } }
.stat { border-top: 2px solid var(--ink); padding-top: .5rem; }
.stat.machine { border-color: var(--sea); }
.stat.human { border-color: var(--rust); }
.stat-label { display: block; font-size: .9rem; color: var(--muted); }
.stat-num { display: block; font-size: clamp(1.5rem, 3.5vw, 2.3rem); font-weight: 600; line-height: 1.2; }
.flood-canvas-wrap { position: relative; }
#floodCanvas { width: 100%; height: clamp(220px, 38vw, 380px); display: block; border-radius: 4px; background: var(--paper-2); }
.flood-caption { position: absolute; left: .8rem; top: .6rem; margin: 0; background: var(--card); padding: .05rem .6rem; border-radius: 4px; box-shadow: var(--shadow); }

.typist { display: grid; justify-items: center; }
.typist-page {
  width: min(560px, 100%); background: #fbf6ea; color: #1d2c46; padding: 1.5rem 1.8rem 1.2rem;
  box-shadow: var(--shadow); transform: rotate(.6deg); border: 1px solid rgba(29,44,70,.12);
}
.typist-page .note { color: #b2462a; }
.typist-page .fine { color: #5f5e54; }
.typist-text { min-height: 4.8em; margin: .4rem 0 1rem; white-space: pre-wrap; font-size: .95rem; }
.typist-text::after { content: "▍"; animation: blink 1s steps(1) infinite; color: #b2462a; }
@keyframes blink { 50% { opacity: 0; } }

.pace { max-width: 760px; margin: 0 auto; width: 100%; }
.pace-bars { display: grid; gap: .7rem; margin: 1.2rem 0 .3rem; }
.pace-row { display: grid; grid-template-columns: 14rem 1fr 6.5rem; gap: .8rem; align-items: center; font-size: .98rem; }
.pace-row .bar { height: 14px; background: var(--paper-2); border-radius: 3px; overflow: hidden; }
.pace-row .bar i { display: block; height: 100%; width: 0; background: var(--moss); transition: width 1.6s cubic-bezier(.2,.7,.2,1); }
.pace-row.hot .bar i { background: var(--rust); }
.pace.in .pace-row .bar i { width: var(--w); }
.pace-row .mono { text-align: right; }
@media (max-width: 640px) { .pace-row { grid-template-columns: 1fr 5.5rem; } .pace-row .bar { grid-column: 1 / -1; grid-row: 2; } }

/* ---------- species cards ---------- */
.species { padding: 10vh 0 4vh; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; margin: 2rem 0 4rem; }
@media (max-width: 960px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .cards { grid-template-columns: 1fr; } }
.card {
  all: unset; box-sizing: border-box; cursor: pointer; perspective: 1200px; display: block; min-height: 420px;
}
.card:focus-visible { outline: 3px solid var(--rust); outline-offset: 4px; }
.card-inner { position: relative; display: block; height: 100%; min-height: 420px; transition: transform .7s cubic-bezier(.3,.7,.2,1); transform-style: preserve-3d; }
.card[aria-pressed="true"] .card-inner { transform: rotateY(180deg); }
.card-front, .card-back {
  position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden;
  background: #f6eedc; color: #1d2c46; border: 1px solid rgba(29,44,70,.2); border-radius: 6px;
  box-shadow: var(--shadow); padding: 1rem; display: flex; flex-direction: column;
}
.card-front { align-items: center; text-align: center; }
.card-front img { width: 82%; aspect-ratio: 1; object-fit: contain; margin: .3rem 0 .4rem; transition: transform .4s; }
.card:hover .card-front img { transform: scale(1.04) rotate(-1deg); }
.card-tag { align-self: flex-start; font-size: .72rem; color: #6b6a5e; }
.card-name { font: 800 1.7rem var(--f-display); line-height: 1; }
.card-latin { font: italic .95rem var(--f-body); color: #6b6a5e; margin: .2rem 0 .6rem; }
.danger { display: flex; gap: 4px; align-items: center; }
.danger::before { content: "danger"; font: 500 .7rem var(--f-mono); color: #6b6a5e; margin-right: .3rem; }
.card-mark { font-size: .88rem; line-height: 1.4; color: #3d4a60; margin: 0 0 .6rem; padding: 0 .3rem; }
.card-hint { margin-top: auto; font: 500 .72rem var(--f-mono); color: #b2462a; display: flex; justify-content: space-between; width: 100%; align-items: center; }
.danger i { width: 22px; height: 6px; border-radius: 3px; background: rgba(29,44,70,.15); }
.danger i.on { background: #b2462a; }
.danger i.half { background: linear-gradient(90deg, #b2462a 50%, rgba(29,44,70,.15) 50%); }
.card-back { transform: rotateY(180deg); gap: .6rem; font-size: .95rem; line-height: 1.45; overflow: auto; }
.card-back .card-name { font-size: 1.35rem; color: #b2462a; }
.field-marks { font-size: .88rem; border-top: 1px dashed rgba(29,44,70,.25); padding-top: .5rem; }

/* loops */
.loops { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: clamp(1rem, 3vw, 2rem); box-shadow: var(--shadow); }
.terms-tabs { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; margin: .5rem 0 1rem; }
.terms-tabs button {
  border: 0; background: transparent; color: var(--ink); font: 500 .85rem var(--f-mono);
  padding: .35rem .9rem; border-radius: 999px; cursor: pointer;
}
.terms-tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); }
.loop-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 1.2rem; }
@media (max-width: 720px) { .loop-grid { grid-template-columns: 1fr; } }
.loop-fig { margin: 0; }
.loop-fig svg { width: 100%; height: auto; overflow: visible; }
.loop-fig figcaption { font-size: .95rem; color: var(--ink-soft); }
svg .node rect, svg .node circle { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; }
svg .node text, svg text.nlabel { fill: var(--ink); font: 500 13px var(--f-mono); text-anchor: middle; }
svg .edge { fill: none; stroke: var(--ink); stroke-width: 1.5; }
svg .edge.dashed { stroke-dasharray: 4 5; stroke: var(--muted); }
svg .lbl { fill: var(--muted); font: italic 13px var(--f-body); text-anchor: middle; }
svg .pulse { fill: var(--rust); }

/* ---------- observations ---------- */
.obs { padding: 8vh 0; border-top: 1px solid var(--line); }
.obs > p { max-width: var(--text); }
.obs-head { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1rem; }
.obs-num { color: var(--rust); font-size: .85rem; border: 1px solid var(--rust); border-radius: 999px; padding: .1rem .6rem; white-space: nowrap; }
.obs-head h3 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0; }
.btn {
  font: 600 .9rem var(--f-mono); color: var(--paper); background: var(--ink); border: 1px solid var(--ink);
  border-radius: 999px; padding: .55rem 1.1rem; cursor: pointer; transition: transform .15s, background .2s;
}
.btn:hover { background: var(--rust); border-color: var(--rust); }
.btn:active { transform: scale(.97); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { color: var(--paper); }
.btn[aria-pressed="true"] { background: var(--rust); border-color: var(--rust); }
.btn:disabled { opacity: .4; cursor: not-allowed; background: var(--ink); }

/* haystack */
.haystack { margin: 2rem 0; background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: clamp(1rem, 3vw, 1.6rem); box-shadow: var(--shadow); }
.hay-controls label { font: 600 1.1rem var(--f-display); }
.hay-controls output { color: var(--rust); }
.hay-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; margin: .6rem 0 1rem; }
.hay-share { font-weight: 600; }
.hay-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--cell, 150px), 1fr)); gap: var(--gap, 6px);
  max-height: 460px; overflow: hidden; align-content: start; transition: gap .3s;
}
.hay-grid .post {
  background: var(--paper); border: 1px solid var(--line); border-radius: 3px; padding: var(--pad, .45rem .55rem);
  font-size: var(--fs, .8rem); line-height: 1.3; color: var(--ink-soft); overflow: hidden;
  height: var(--h, 4.6em); transition: background .3s, color .3s, border-color .3s;
}
.hay-grid.revealed .post.m { background: color-mix(in srgb, var(--sea) 14%, var(--paper)); border-color: color-mix(in srgb, var(--sea) 40%, transparent); color: var(--muted); }
.hay-grid.revealed .post.h { background: var(--rust); color: #fff; border-color: var(--rust); }
.hay-grid .post.new { animation: pop .4s ease; }
@keyframes pop { from { opacity: 0; transform: scale(.85); } }

.clipping {
  max-width: 640px; margin: 2rem auto 0; background: #fbf6ea; color: #1d2c46; padding: 1.4rem 1.6rem; border: 0;
  font: 400 1.05rem/1.5 var(--f-body); box-shadow: var(--shadow); transform: rotate(-.8deg);
  clip-path: polygon(0 3%, 6% 0, 14% 2%, 25% 0, 38% 3%, 52% 0, 66% 2%, 80% 0, 92% 3%, 100% 1%, 100% 97%, 94% 100%, 82% 98%, 68% 100%, 55% 97%, 40% 100%, 27% 98%, 12% 100%, 0 97%);
}
.clipping p { margin: 0 0 .6rem; }
.clipping cite { font: normal .82rem var(--f-mono); color: #6b6a5e; }

/* motivation */
.two-q { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin: 1rem 0 2rem; }
@media (max-width: 720px) { .two-q { grid-template-columns: 1fr; } }
.q { margin: 0; padding: 1rem 1.2rem; border: 1px solid var(--line); border-radius: 6px; font: italic 1.1rem/1.45 var(--f-display); background: var(--card); }
.q .note { display: block; font-style: normal; }
.ingest { margin: 0 0 2rem; }
.ingest svg { width: 100%; height: auto; max-height: 300px; }
.ingest .book-src rect, .ingest .gen rect { fill: var(--card); stroke: var(--ink); stroke-width: 1.5; }
.ingest .book-src text { fill: var(--ink); font: 600 12px var(--f-mono); text-anchor: middle; }
.ingest .model path { fill: var(--ink); }
.ingest .model text { fill: var(--paper); font: 600 13px var(--f-mono); text-anchor: middle; }
.ingest .gen rect { stroke: var(--sea); }
.ingest .royalty .lbl { text-anchor: start; }
.ingest .track { fill: var(--paper-2); }
#royaltyBar { fill: var(--rust); transition: width 3s ease; }
.ingest-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* engines */
.engine { border: 1px solid var(--line); border-radius: 6px; padding: 1rem 1.2rem; background: var(--card); }
.roles { display: flex; flex-wrap: wrap; gap: .5rem; }
.roles span {
  font: 500 .85rem var(--f-mono); border: 1px solid var(--ink); border-radius: 4px; padding: .3rem .6rem; position: relative;
  transition: color .5s, border-color .5s, background .5s;
}
.roles span.gone { color: var(--muted); border-style: dashed; border-color: var(--muted); text-decoration: line-through; text-decoration-color: var(--rust); }

/* terms */
.terms { margin: 1.5rem 0; background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: clamp(1rem, 3vw, 1.6rem); box-shadow: var(--shadow); }
.terms-stage { position: relative; height: clamp(300px, 46vw, 440px); }
#termsSvg { width: 100%; height: 100%; display: block; overflow: visible; }
#termsSvg .discovery { fill: var(--moss); }
#termsSvg .term circle { stroke-width: 1.5; }
#termsSvg .term text { font: 600 12px var(--f-mono); fill: var(--ink); text-anchor: middle; pointer-events: none; }
#termsSvg .link { stroke: var(--line); stroke-width: 1; }
#termsSvg .core-label { font: 600 13px var(--f-mono); fill: var(--paper); text-anchor: middle; }
.terms-row { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; margin-top: .8rem; }
.aside-note { max-width: var(--text); border-left: 3px solid var(--moss); padding: .3rem 0 .3rem 1rem; margin: 1.2rem 0; font-size: 1rem; color: var(--ink-soft); }
.aside-note p:last-child { margin: 0; }
.dna-strip { color: var(--moss); font-weight: 600; letter-spacing: .1em; }

/* messengers */
.messengers { margin: 2.5rem 0 0; background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: clamp(1rem, 3vw, 1.6rem); box-shadow: var(--shadow); }
.msg-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: .6rem; margin: 1.2rem 0 .4rem; border-bottom: 2px solid var(--ink); padding-bottom: .3rem; }
.msg-cols span { font: 600 .8rem var(--f-mono); text-align: center; }
.msg-cols .ai { color: var(--sea); }
.msg-steps { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); column-gap: .6rem; row-gap: .5rem; min-height: 2rem; }
.msg-step { grid-column: var(--c); display: grid; gap: .2rem; align-content: start; position: relative; animation: pop .4s ease; }
.msg-step.col-0 { --c: 1; } .msg-step.col-1 { --c: 2; } .msg-step.col-2 { --c: 3; } .msg-step.col-3 { --c: 4; }
.msg-who { display: none; font-size: .72rem; color: var(--muted); }
.msg-role { font: italic .82rem var(--f-body); color: var(--muted); }
.msg-bubble { background: var(--paper); border: 1px solid var(--ink); border-radius: 10px; padding: .45rem .65rem; font-size: .92rem; line-height: 1.35; }
.msg-step.ai .msg-bubble { border-style: dashed; border-color: var(--sea); background: color-mix(in srgb, var(--sea) 10%, var(--paper)); font-size: .82rem; color: var(--ink-soft); }
.msg-step.ai .msg-role { color: var(--sea); }
.msg-heart { position: absolute; top: -.2rem; right: -.2rem; width: 18px; height: 18px; transition: opacity .4s; }
.msg-heart svg { width: 100%; height: 100%; fill: var(--rust); }
.msg-row { display: flex; gap: .8rem; flex-wrap: wrap; }
.msg-out { margin: 1rem 0 0; min-height: 2.6em; }
@media (max-width: 640px) {
  .msg-cols { display: none; }
  .msg-steps { grid-template-columns: 1fr; }
  .msg-step { grid-column: 1; }
  .msg-step.col-1, .msg-step.col-2 { margin-left: 1.2rem; }
  .msg-step.col-3 { margin-left: 2.4rem; }
  .msg-who { display: block; }
}

/* social nutrition facts */
.nutrition-wrap { margin: 1.5rem 0; display: grid; grid-template-columns: 1fr minmax(0, 440px); gap: 2.5rem; align-items: start; }
@media (max-width: 820px) { .nutrition-wrap { grid-template-columns: 1fr; } }
.nutri-text .strong-line { margin-top: 0; }
.nutri-text .terms-tabs { flex-wrap: wrap; border-radius: 18px; }
.nutrition {
  max-width: 460px; background: #fff; color: #111; border: 2px solid #111; padding: .6rem .8rem .7rem;
  font-family: "Helvetica Neue", Arial, sans-serif; box-shadow: var(--shadow);
}
.nf-title { font: 900 1.9rem/1 "Helvetica Neue", Arial, sans-serif; letter-spacing: -.02em; margin: 0 0 .2rem; }
.nf-serving { margin: 0 0 .3rem; font-size: .9rem; border-bottom: 1px solid #111; padding-bottom: .3rem; }
.nf-rule.thick { height: 10px; background: #111; margin: .2rem 0; }
.nf-head { display: flex; justify-content: space-between; font-weight: 700; font-size: .8rem; margin: .2rem 0; border-bottom: 1px solid #111; padding-bottom: .2rem; }
.nutrition dl { margin: 0; }
.nf-row { border-bottom: 1px solid #111; padding: .35rem 0; }
.nf-row dt { font-weight: 700; font-size: .92rem; }
.nf-row dd { margin: .2rem 0 0; display: grid; grid-template-columns: 1fr 3rem; align-items: center; gap: .5rem; }
.nf-bar { height: 10px; background: #e7e2d6; border-radius: 2px; overflow: hidden; }
.nf-bar i { display: block; height: 100%; width: 0; background: #4d6a37; transition: width .9s cubic-bezier(.3,.7,.2,1), background .4s; }
.nf-val { font-weight: 800; text-align: right; font-size: .95rem; }
.nf-note { grid-column: 1 / -1; font: italic .78rem var(--f-body); color: #b2462a; }
.nf-note:empty { display: none; }
.nf-row.imitation .nf-bar i { background: repeating-linear-gradient(45deg, #b2462a 0 4px, #f0c9bd 4px 8px); }
.nf-row.empty .nf-val { color: #b2462a; }
.nf-foot { margin: .3rem 0 0; font-size: .78rem; }

/* cognition */
.paths { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin: 2rem 0 1rem; }
@media (max-width: 640px) { .paths { grid-template-columns: 1fr; } }
.path { border: 1px solid var(--line); border-radius: 6px; padding: 1rem 1.2rem; background: var(--card); }
.path ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.path li { font: 500 .85rem var(--f-mono); border: 1px solid var(--ink); border-radius: 4px; padding: .25rem .55rem; }
.path li:not(:last-child)::after { content: " →"; color: var(--muted); }
.path li { position: relative; }
.path.parrot li { border-color: var(--sea); }
.path.parrot .skip-li { border-style: dashed; color: var(--muted); }
.probe { margin: 1rem 0 2rem; }
.probe-out { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 1rem; }
@media (max-width: 640px) { .probe-out { grid-template-columns: 1fr; } }
.bubble { background: var(--paper-2); border-radius: 10px; padding: .7rem 1rem; font-size: 1rem; position: relative; animation: pop .4s ease; }
.bubble .note { font-size: 1.15rem; }
.strong-line { font: italic 400 1.3rem/1.4 var(--f-display); }

/* ---------- toolkit ---------- */
.optimism { padding: 0 0 6vh; }
.opt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
@media (max-width: 720px) { .opt-grid { grid-template-columns: 1fr; } }
.opt { border-top: 2px solid var(--moss); padding-top: .8rem; }
.opt p { margin: 0; }
.opt-icon { font-size: 1.6rem; color: var(--moss); }
.toolkit { padding: 6vh 0 10vh; }
.map { position: relative; margin: 2rem 0; border-radius: 6px; overflow: hidden; box-shadow: var(--shadow); }
.pins { position: absolute; inset: 0; }
.pin { text-decoration: none;
  position: absolute; transform: translate(-50%, -50%); width: 38px; height: 38px; border-radius: 50%;
  border: 2px solid #f6eedc; background: #b2462a; color: #fff; font: 700 1rem var(--f-display); cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,.35); display: grid; place-items: center; transition: transform .2s, background .2s;
}
.pin::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; border: 2px solid #b2462a; opacity: 0; animation: ping 2.4s ease-out infinite; animation-delay: var(--pd, 0s); }
@keyframes ping { 0% { opacity: .8; transform: scale(.6); } 100% { opacity: 0; transform: scale(1.5); } }
.pin.star { background: #2b4a73; }
.pin.star::after { border-color: #2b4a73; }
.pin:hover, .pin[aria-expanded="true"] { transform: translate(-50%, -50%) scale(1.15); background: #1d2c46; }
.pin-tip {
  position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%); white-space: nowrap;
  background: #1d2c46; color: #f6eedc; font: 500 .75rem var(--f-mono); padding: .2rem .5rem; border-radius: 4px; opacity: 0; pointer-events: none; transition: opacity .2s;
}
.pin:hover .pin-tip, .pin:focus-visible .pin-tip { opacity: 1; }
@media (max-width: 640px) { .pin { width: 28px; height: 28px; font-size: .8rem; } }
@media (prefers-reduced-motion: reduce) { .pin::after { animation: none; } }

.tools { display: grid; gap: 1rem; }
.tool {
  background: var(--card); border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow); overflow: hidden;
  scroll-margin-top: 80px; transition: border-color .3s;
}
.tool.flash { border-color: var(--rust); }
.tool-head {
  all: unset; box-sizing: border-box; width: 100%; cursor: pointer; display: grid; grid-template-columns: 2.4rem 1fr auto; gap: 1rem; align-items: center;
  padding: 1rem 1.2rem;
}
.tool-head:focus-visible { outline: 3px solid var(--rust); outline-offset: -3px; }
.tool-num { width: 2.2rem; height: 2.2rem; border-radius: 50%; background: var(--rust); color: #fff; display: grid; place-items: center; font: 700 1rem var(--f-display); }
.tool-title { font: 600 1.3rem/1.15 var(--f-display); }
.tool-analog { display: block; font: 400 .85rem var(--f-mono); color: var(--muted); margin-top: .2rem; }
.tool-analog b { color: var(--moss); font-weight: 600; }
.tool-chev { transition: transform .3s; font-size: 1.2rem; color: var(--muted); }
.tool[data-open="true"] .tool-chev { transform: rotate(180deg); }
.tool-body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .45s ease; }
.tool[data-open="true"] .tool-body { grid-template-rows: 1fr; }
.tool-body > div { overflow: hidden; }
.tool-content { padding: 0 1.2rem 1.4rem 4.6rem; display: grid; gap: 1rem; }
@media (max-width: 640px) { .tool-content { padding-left: 1.2rem; } }
.tool-content p { margin: 0; max-width: 64ch; }
.tool-content .vault { max-width: 360px; border-radius: 4px; }
.chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.chips span { font: 500 .8rem var(--f-mono); background: var(--paper-2); border-radius: 999px; padding: .25rem .7rem; }

/* verification timeline */
.vtl { position: relative; height: 92px; margin: .5rem 0; }
.vtl svg { width: 100%; height: 100%; overflow: visible; }
.vtl .axis { stroke: var(--ink); stroke-width: 1.5; }
.vtl .gap { fill: var(--rust); fill-opacity: .18; }
.vtl text { font: 500 11px var(--f-mono); fill: var(--ink-soft); text-anchor: middle; }
.vtl .gap-label { fill: var(--rust); font-weight: 600; }

/* royalty flow / holding pen / cohort */
.flow { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; font: 500 .85rem var(--f-mono); }
.flow span { border: 1px solid var(--ink); border-radius: 4px; padding: .35rem .6rem; background: var(--paper); }
.flow span.pool { background: var(--moss); color: #fff; border-color: var(--moss); }
.flow i { font-style: normal; color: var(--rust); }
.flow-row { display: grid; gap: .4rem; }
.flow-row .fine { margin: 0; }
.pen { display: grid; grid-template-columns: 1fr auto 1fr; gap: .8rem; align-items: center; }
.pen-box { min-height: 130px; border: 2px dashed var(--muted); border-radius: 6px; padding: .5rem; display: flex; flex-wrap: wrap; align-content: flex-start; gap: .3rem; }
.pen-box.ok { border-style: solid; border-color: var(--moss); }
.pen-box .w { font: 500 .78rem var(--f-mono); background: var(--paper-2); border-radius: 3px; padding: .15rem .4rem; animation: pop .3s ease; }
.pen-box.ok .w { background: var(--moss); color: #fff; }
.pen-gate { display: grid; gap: .4rem; justify-items: center; text-align: center; font-size: .8rem; color: var(--muted); }
.pen-label { font: 500 .75rem var(--f-mono); color: var(--muted); width: 100%; }
@media (max-width: 560px) { .pen { grid-template-columns: 1fr; } }
.cohort { display: grid; gap: .35rem; }
.cohort-row { display: grid; grid-template-columns: 7.5rem 1fr; gap: .6rem; align-items: center; font: 500 .78rem var(--f-mono); }
.cohort-bar { position: relative; height: 18px; background: var(--paper-2); border-radius: 3px; }
.cohort-bar .grow { position: absolute; top: 0; bottom: 0; background: var(--moss); border-radius: 3px; opacity: .75; }
.cohort-bar .ai { position: absolute; top: 0; bottom: 0; background: repeating-linear-gradient(45deg, var(--sea) 0 4px, transparent 4px 8px); opacity: .7; border-radius: 3px; }
.cohort-row.us { color: var(--rust); font-weight: 600; }
.cohort-row.us .cohort-bar { outline: 2px solid var(--rust); outline-offset: 2px; }
.legend { display: flex; gap: 1rem; flex-wrap: wrap; font: 500 .75rem var(--f-mono); color: var(--muted); }
.legend i { display: inline-block; width: 12px; height: 12px; vertical-align: -1px; margin-right: .3rem; border-radius: 2px; }

/* ---------- finale ---------- */
.finale { position: relative; padding-bottom: 10vh; }
.finale-art { position: relative; height: 70vh; overflow: hidden; }
.finale-art img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; }
.finale-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to bottom, transparent 50%, var(--paper)); }
.finale-text { position: relative; margin-top: -8vh; text-align: center; }
.finale-text .part-title { font-size: clamp(2rem, 5.5vw, 3.8rem); max-width: 20ch; margin-inline: auto; }
.lede-sm { font: italic 1.3rem/1.45 var(--f-display); max-width: 40ch; margin: 0 auto 4rem; color: var(--ink-soft); }
.pledge, .acts { text-align: left; max-width: 640px; margin: 0 auto 3rem; }
.pledge { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 1.5rem; box-shadow: var(--shadow); }
.source-link { font-size: 1.1rem; }

.footer { border-top: 1px solid var(--line); padding: 2.5rem 0 3rem; font-size: .95rem; color: var(--ink-soft); }
.footer p { margin: 0 0 .5rem; }
@media (max-width: 480px) { .brand { display: none; } .chapters { margin-left: 0; } .topbar { gap: .4rem; } }
@media (max-width: 640px) {
  .hero::after { background: linear-gradient(to bottom, transparent 12%, color-mix(in srgb, var(--paper) 80%, transparent) 40%, var(--paper) 62%); }
  .hero-words { inset: 2% 0 72% 0; }
  .hero-art img { object-position: 40% 30%; }
}

/* knowledge loops */
svg .lbl.start { text-anchor: start; }
svg .arrowhead { fill: var(--ink); }
.fig-title { font: 600 1.1rem var(--f-display); margin: 0 0 .5rem; }
.counter { margin: .3rem 0 .3rem; font-size: .85rem; color: var(--ink-soft); }
.counter strong { font-size: 1.15rem; color: var(--rust); }
#countB { color: var(--moss); }
svg .chip { transition: stroke-width .3s; stroke: transparent; stroke-width: 0; }
svg .chip.c0 { fill: var(--sea); fill-opacity: .3; }
svg .chip.c1 { fill: var(--sea); fill-opacity: .55; }
svg .chip.c2 { fill: var(--ink-soft); fill-opacity: .3; }
svg .chip.c3 { fill: var(--muted); fill-opacity: .5; }
svg .chip.new { fill: var(--moss); fill-opacity: 1; }
svg .chip.pick { stroke: var(--rust); stroke-width: 2; }
svg .world { fill: url(#hatch); }
svg .hatch-line { stroke: var(--moss); stroke-opacity: .3; stroke-width: 3; }
svg .world-lbl { fill: var(--moss); font-style: normal; font-weight: 600; font-family: var(--f-mono); font-size: 12px; }
svg .new-edge { stroke: var(--moss); stroke-width: 2; }
svg .new-lbl { fill: var(--moss); font-weight: 600; transition: opacity .3s; }
svg .world-node rect { stroke: var(--moss); stroke-width: 2.5; }
svg .pulse { transition: fill .3s; }
svg .pulse.carrying { fill: var(--moss); }

/* social iceberg */
.social { margin-top: 2rem; background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: clamp(1rem, 3vw, 2rem); box-shadow: var(--shadow); }
.social > p { max-width: var(--text); }
.social-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 1.8rem; align-items: start; }
@media (max-width: 720px) { .social-grid { grid-template-columns: 1fr; } }
.berg { border-radius: 6px; overflow: hidden; border: 1px solid var(--line); }
.berg-sky { display: flex; justify-content: center; align-items: flex-end; padding-top: 1.4rem; background: var(--paper-2); border-bottom: 3px solid var(--sea); }
.berg-sea { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 3px 0 1.2rem; background: linear-gradient(to bottom, color-mix(in srgb, var(--sea) 30%, var(--card)), color-mix(in srgb, var(--sea) 55%, var(--card))); }
.layer {
  all: unset; box-sizing: border-box; cursor: pointer; width: var(--w); min-height: 44px; padding: .3rem 1rem;
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  background: #f3f8fb; color: #1d2c46; font: 600 .82rem/1.2 var(--f-mono);
  clip-path: polygon(3% 0, 97% 0, 100% 100%, 0 100%); transition: background .4s, color .4s;
}
.berg-sky .layer { min-height: 54px; clip-path: polygon(24% 0, 76% 0, 100% 100%, 0 100%); padding-top: .9rem; }
.layer:focus-visible { outline: none; background: #dfe9f1; text-decoration: underline; }
.layer[aria-pressed="true"] { background: #b2462a; color: #fff; }
.mimic { display: none; font: italic 400 .72rem var(--f-body); color: #b2462a; }
.berg[data-who="ai"] .berg-sea .layer { background: repeating-linear-gradient(45deg, rgba(243,248,251,.6) 0 6px, rgba(243,248,251,.12) 6px 12px); color: var(--ink); }
.berg[data-who="ai"] .berg-sea .layer[aria-pressed="true"] { background: repeating-linear-gradient(45deg, rgba(178,70,42,.75) 0 6px, rgba(178,70,42,.2) 6px 12px); color: var(--ink); }
.berg[data-who="ai"] .mimic { display: block; }
.berg-detail h4 { margin-bottom: .6rem; }
.berg-detail .note { margin: 0; font-size: 1.2rem; }
.side { border-left: 3px solid; padding: .3rem .9rem; margin: .7rem 0; opacity: .5; transition: opacity .3s; }
.side.on { opacity: 1; }
.side.friend { border-color: var(--moss); }
.side.ai { border-color: var(--rust); }
.side b { font: 600 .8rem var(--f-mono); text-transform: uppercase; letter-spacing: .06em; }
.side p { margin: .2rem 0 0; }
.social-close { font: italic 400 1.15rem/1.5 var(--f-display); margin: 1.4rem 0 0; }
.berg[data-who="ai"] .berg-sea .layer span, .berg[data-who="ai"] .berg-sea .layer .mimic { background: rgba(243,248,251,.92); color: #1d2c46; padding: 0 .4rem; border-radius: 3px; }
.berg[data-who="ai"] .berg-sea .layer .mimic { color: #b2462a; margin-top: 1px; }

/* motivation lanes */
.ingest svg { max-height: none; }
svg .lane-title { font: 700 15px var(--f-display); fill: var(--rust); }
svg .divider { stroke: var(--line); stroke-dasharray: 4 4; }
svg .money { stroke: var(--moss); stroke-width: 2; }
svg .money-lbl { fill: var(--moss); font-style: italic; }
svg .reader circle, svg .reader path { fill: var(--ink); }
svg .work rect { fill: color-mix(in srgb, var(--sea) 14%, var(--paper)); stroke: var(--sea); stroke-width: 1; }
svg .work text { font: 500 8.5px var(--f-mono); fill: var(--ink); text-anchor: middle; }
svg .coin { fill: #d9a531; stroke: #8a6418; }
svg .coin-t { font: 700 8px var(--f-mono); fill: #5b3f08; text-anchor: middle; }
.lane-counters p { margin: .2rem 0; font-size: .85rem; }
.lane-counters strong { color: var(--rust); }
#revA { color: var(--moss); }

/* livelihoods (reuses engine/roles look) */
.livelihoods { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin: 1.5rem 0; }
@media (max-width: 640px) { .livelihoods { grid-template-columns: 1fr; } }

/* machine-only terms */
#termsSvg .machine-label { fill: var(--muted); font-style: italic; }
#termsSvg .link.chatter { stroke: var(--muted); stroke-dasharray: 2 3; stroke-opacity: .7; }
.terms-legend { margin: .6rem 0 0; display: flex; flex-wrap: wrap; gap: .3rem .8rem; align-items: center; }
.terms-legend .lg { display: inline-block; width: 14px; height: 14px; border-radius: 50%; vertical-align: -2px; }
.terms-legend .lg.human { background: color-mix(in srgb, var(--rust) 25%, transparent); border: 1.5px solid var(--rust); }
.terms-legend .lg.machine { border: 1.5px dashed var(--muted); }
.obs-head { flex-wrap: wrap; row-gap: .4rem; }
svg .node text.small { font-size: 11px; }
.ingest-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.scroll-hint { display: none; margin: 0 0 .3rem; }
@media (max-width: 640px) { #ingestSvg { min-width: 600px; } .scroll-hint { display: block; } }

/* probe bubble label */
.bubble .note { display: block; margin-bottom: .25rem; }

/* ongoing verification */
.sub-label { font: 600 .78rem var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--rust); margin: 0 0 .5rem !important; }
.ver-block { border-left: 3px solid var(--line); padding-left: 1rem; display: grid; gap: .6rem; }
.ver-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
@media (max-width: 560px) { .ver-list { grid-template-columns: 1fr; } }
.ver-list li { background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: .55rem .8rem; display: grid; gap: .15rem; }
.ver-list b { font-family: var(--f-display); font-weight: 600; }
.ver-list span { font-size: .92rem; color: var(--ink-soft); }
.vtl .gap.future { fill: none; stroke: var(--rust); stroke-dasharray: 4 4; stroke-opacity: .6; }
.booth { background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 1rem; display: grid; gap: .8rem; }
.booth-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.2rem; align-items: start; }
@media (max-width: 820px) { .booth-grid { grid-template-columns: 1fr; } }
.booth-art { margin: 0; }
.booth-art img { border-radius: 4px; box-shadow: var(--shadow); }
.booth-flow { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; counter-reset: step; }
.booth-step { position: relative; display: grid; grid-template-columns: 2.2rem 1fr; column-gap: .7rem; padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 6px; background: var(--card); }
.booth-step:not(:last-child)::after { content: "↓"; position: absolute; left: 1.45rem; bottom: -.95rem; color: var(--muted); font-size: .85rem; z-index: 1; }
.booth-icon { grid-row: span 2; width: 2.2rem; height: 2.2rem; border-radius: 50%; background: var(--ink); color: var(--paper); display: grid; place-items: center; font-size: 1.05rem; }
.booth-step b { font: 600 1rem var(--f-display); }
.booth-step > span:last-child { font-size: .88rem; color: var(--ink-soft); }
.booth-step.seal { border-color: var(--moss); }
.booth-step.seal .booth-icon { background: var(--moss); color: #fff; }

/* pen: accepted + duplicate boxes */
.pen-out { display: grid; gap: .6rem; }
.pen-out .pen-box { min-height: 60px; }
.pen-box.dup { border-color: var(--rust); border-style: dashed; }
.pen-box.dup .w { background: transparent; color: var(--rust); text-decoration: line-through; border: 1px dashed var(--rust); }

/* social nutrition label: smaller, beside the intro text */
.nutrition-wrap { grid-template-columns: 1fr minmax(0, 360px); gap: 2rem; margin-top: 0; }
.nutrition { font-size: .9em; padding: .5rem .7rem .6rem; }
.nf-title { font-size: 1.5rem; }
.nf-row { padding: .25rem 0; }
.nf-row dt { font-size: .82rem; }
.nf-bar { height: 8px; }
.nf-val { font-size: .85rem; }
.nf-serving, .nf-foot { font-size: .78rem; }
.nf-rule.thick { height: 7px; }

/* answer tags */
.answers { margin: 0 !important; display: flex; flex-wrap: wrap; gap: .4rem; }
.answers a { font: 600 .78rem var(--f-mono); text-decoration: none; color: var(--rust); border: 1px solid var(--rust); border-radius: 999px; padding: .2rem .7rem; }
.answers a em { font-weight: 400; }
.answers a:hover { background: var(--rust); color: #fff; }

/* monoculture */
.mono-crop { max-width: var(--text); margin: 2rem 0; }
.mono-crop h4 { font-size: 1.4rem; }
.ai-ese { display: flex; flex-wrap: wrap; gap: .35rem; margin: .4rem 0 1rem; }
.ai-ese span { font: 500 .85rem var(--f-mono); padding: .2rem .6rem; border-radius: 3px; background: color-mix(in srgb, var(--sea) 18%, var(--card)); color: var(--sea); }

/* where we draw the line */
.spectrum { list-style: none; margin: .4rem 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; }
.spectrum li { padding: .8rem .7rem; display: grid; gap: .25rem; color: #fff; border-radius: 3px; }
.spectrum li b { font: 700 1rem var(--f-display); }
.spectrum li span { font-size: .82rem; opacity: .9; }
.spectrum li:nth-child(1) { background: #4d6a37; }
.spectrum li:nth-child(2) { background: #6b7f45; }
.spectrum li:nth-child(3) { background: #6e6a5a; }
.spectrum li:nth-child(4) { background: #3f5a80; }
.spectrum li:nth-child(5) { background: #2b4a73; }
.spectrum li:first-child { border-radius: 8px 3px 3px 8px; outline: 3px solid var(--rust); outline-offset: 3px; }
@media (max-width: 720px) { .spectrum { grid-template-columns: 1fr; } }

/* messengers: direct path bypasses the AIs */
.msg-cols.bypassed .ai { text-decoration: line-through; text-decoration-color: var(--rust); opacity: .45; }
.msg-bypass { grid-column: 2 / 4; position: relative; display: grid; place-items: center; min-height: 2.4rem; animation: pop .4s ease; }
.msg-arrow { position: absolute; left: -.3rem; right: -.3rem; top: 50%; height: 3px; background: var(--moss); }
.msg-arrow::after { content: ""; position: absolute; top: -6px; border: 7.5px solid transparent; }
.msg-bypass.right .msg-arrow::after { right: -8px; border-left: 10px solid var(--moss); border-right: 0; }
.msg-bypass.left .msg-arrow::after { left: -8px; border-right: 10px solid var(--moss); border-left: 0; }
.msg-bypass-label { position: relative; background: var(--card); padding: .15rem .6rem; font-size: .78rem; font-weight: 600; color: var(--moss); border: 1.5px solid var(--moss); border-radius: 999px; text-align: center; }
@media (max-width: 640px) {
  .msg-bypass { grid-column: 1; min-height: 2rem; }
  .msg-arrow { left: 50%; right: auto; width: 3px; height: 100%; top: 0; }
  .msg-arrow::after { display: none; }
}
@media (max-width: 820px) { .tool-content .spectrum { grid-template-columns: 1fr; } }
.tool-content .spectrum li span { font-size: .78rem; }

/* sign-up form */
.signup form { display: grid; gap: .9rem; margin-top: 1rem; }
.field { display: grid; gap: .3rem; }
.field label { font: 600 .9rem var(--f-body); }
.field .optional { font-weight: 400; color: var(--muted); }
.signup input[type="email"], .signup input[type="text"], .signup textarea {
  width: 100%; font: 400 1rem var(--f-body); color: var(--ink); background: var(--paper);
  border: 1px solid var(--line); border-radius: 4px; padding: .6rem .75rem;
}
.signup textarea { resize: vertical; }
.signup input:focus, .signup textarea:focus { outline: 2px solid var(--rust); outline-offset: 1px; }
.signup [aria-invalid="true"] { border-color: var(--rust); }
.field-err { font-size: .85rem; color: var(--rust); min-height: 0; }
.signup .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { font-size: .95rem; }
.form-status.ok { color: var(--moss); font-weight: 600; }
.form-status.err { color: var(--rust); }
.signup-done { text-align: center; padding: 1rem 0; }
.signup-done .note { font-size: 1.8rem; }
.pledge-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* hero title legibility over the illustration */
h1 { text-shadow: 0 0 2px var(--paper), 0 0 6px var(--paper), 0 0 14px var(--paper), 0 0 28px color-mix(in srgb, var(--paper) 85%, transparent); }
.hero-text::before {
  content: ""; position: absolute; z-index: -1; left: -10%; right: 20%; top: -25%; bottom: -5%;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--paper) 72%, transparent) 0%, color-mix(in srgb, var(--paper) 40%, transparent) 55%, transparent 100%);
  pointer-events: none;
}
.chapters a.slides-link { color: var(--rust); border: 1px solid var(--rust); }