:root {
  --paper: #f7f7f2;
  --ink: #080808;
  --muted: #666762;
  --line: #d8d8d0;
  --panel: #ffffff;
  --soft: #edede7;
  --red: #ff4057;
  --cyan: #00bcd4;
  --green: #12a878;
  --amber: #f2ae33;
  --violet: #7a5cff;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.1);
  --scroll-progress: 0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
  scroll-padding-top: 58px;
}

/* Snap to the start of each full-height "page". The tall scrolly story
   (#story) is intentionally left out so its chapters scroll freely. */
.hero,
.plain-terms,
.sae-intro,
.story-arc,
.sea,
.zoomout,
.topics,
.implications,
.takeaway,
.writeup {
  scroll-snap-align: start;
  scroll-snap-stop: normal;
}

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

@supports (overflow: clip) {
  html,
  body {
    overflow-x: clip;
  }
}

#top,
#story,
#project-note,
#takeaway,
#writeup {
  scroll-margin-top: 76px;
}

#patterns {
  scroll-margin-top: 58px;
}

#case-url,
#case-python,
#case-cat,
#case-star-wars {
  scroll-margin-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(8, 8, 8, 0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 8, 8, 0.032) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

main:focus {
  outline: none;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: -72px;
  left: 12px;
  z-index: 80;
  padding: 10px 12px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  color: var(--ink);
  background: var(--paper);
  box-shadow: 4px 4px 0 var(--ink);
  font-weight: 850;
  text-decoration: none;
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 12px;
}

.noscript-banner {
  position: relative;
  z-index: 90;
  padding: 14px clamp(22px, 5vw, 78px);
  border-bottom: 1px solid var(--ink);
  color: var(--paper);
  background: var(--ink);
  font-weight: 820;
}

.data-status {
  position: fixed;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 30px);
  z-index: 70;
  max-width: min(360px, calc(100vw - 32px));
  padding: 12px 14px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  color: var(--paper);
  background: var(--ink);
  box-shadow: 4px 4px 0 rgba(8, 8, 8, 0.22);
  font-size: 0.88rem;
  font-weight: 850;
  line-height: 1.25;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.data-status[data-state="ready"] {
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.data-status[data-state="error"] {
  opacity: 1;
  pointer-events: auto;
  transform: none;
  color: var(--ink);
  background: var(--red);
  box-shadow: 5px 5px 0 rgba(8, 8, 8, 0.38);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(22px, 5vw, 78px);
  border-bottom: 1px solid var(--ink);
  background: rgba(247, 247, 242, 0.94);
  backdrop-filter: blur(14px);
}

.scroll-meter {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--red), var(--green));
  transform: scaleX(var(--scroll-progress));
  transform-origin: left center;
  pointer-events: none;
}

.brand {
  color: var(--ink);
  font-weight: 950;
  letter-spacing: 0;
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: clamp(14px, 3vw, 32px);
}

.site-header nav a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--ink);
}

.site-header nav a.is-current {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 1240px;
  margin-bottom: 26px;
  font-size: clamp(3.15rem, 5.8vw, 6.1rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2.4rem, 5.4vw, 5.6rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1rem;
  line-height: 1.2;
}

.hero {
  scroll-margin-top: 76px;
  min-height: calc(100vh - 58px);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: clamp(26px, 4.5vh, 52px);
  padding: clamp(34px, 4.2vw, 52px) clamp(22px, 5vw, 78px);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(0, 188, 212, 0.12), transparent);
  transform: translateX(-100%);
  animation: hero-scan 9s ease-in-out infinite;
}

.hero-title {
  position: relative;
  z-index: 1;
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 6.6rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.hero-title em {
  font-style: normal;
  color: var(--red);
  white-space: nowrap;
}

.hero-bots {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: clamp(22px, 6vw, 80px);
  margin-top: clamp(14px, 4vh, 40px);
}

.hero-bots svg {
  width: auto;
  height: clamp(82px, 13vh, 150px);
}

@media (prefers-reduced-motion: no-preference) {
  .hero-bots svg {
    animation: hero-bot-bob 2.8s ease-in-out infinite;
  }
  .hero-bots svg:nth-child(2) {
    animation-delay: 0.25s;
  }
  .hero-bots svg:nth-child(3) {
    animation-delay: 0.5s;
  }
  .hero-bots svg:nth-child(4) {
    animation-delay: 0.75s;
  }
}

@keyframes hero-bot-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-9px);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .motion-ready .reveal-item {
    opacity: 0;
    transform: translateY(18px);
    transition:
      opacity 520ms ease,
      transform 520ms ease;
  }

  .motion-ready .reveal-item.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-copy,
.hero-demo {
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 1240px;
}

.lede {
  max-width: 900px;
  margin-bottom: 0;
  color: #252623;
  font-size: clamp(1.18rem, 1.65vw, 1.48rem);
  line-height: 1.38;
}

.hero-demo {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(310px, 0.88fr);
  gap: 1px;
  max-width: 1180px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.sample-text,
.detector-strip,
.hero-checks {
  background: var(--panel);
}

.sample-text {
  padding: clamp(20px, 3vw, 34px);
}

.sample-text span,
.hero-checks span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sample-text p {
  max-width: 720px;
  margin-bottom: 0;
  font-size: clamp(1.85rem, 3.2vw, 3.55rem);
  font-weight: 900;
  line-height: 1.02;
}

mark {
  padding: 0 0.06em;
  border: 2px solid var(--red);
  border-radius: 6px;
  color: inherit;
  background: rgba(255, 64, 87, 0.18);
}

.detector-strip {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: clamp(22px, 3vw, 38px);
}

.pulse-dot {
  position: relative;
  flex: 0 0 auto;
  width: 56px;
  height: 56px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 0 rgba(255, 64, 87, 0.34);
  animation: pulse-dot 1.8s ease-out infinite;
}

.pulse-dot::after {
  content: "";
  position: absolute;
  inset: 15px;
  border-radius: 50%;
  background: var(--panel);
}

.detector-strip strong {
  display: block;
  margin-bottom: 8px;
  font-size: clamp(1.35rem, 2vw, 2rem);
}

.detector-strip p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-checks {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink);
}

.hero-checks div {
  min-height: 82px;
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--panel);
}

.hero-checks strong {
  display: block;
  font-size: clamp(1.35rem, 2vw, 2.1rem);
  line-height: 1.1;
}

.plain-terms {
  display: grid;
  grid-template-columns: minmax(280px, 0.74fr) minmax(0, 1.26fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: 92vh;
  padding: clamp(72px, 8vw, 124px) clamp(22px, 5vw, 78px);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: rgba(255, 255, 255, 0.66);
}

.plain-copy {
  max-width: 640px;
}

.plain-copy h2 {
  max-width: 620px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.term-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(16px, 2vw, 22px);
}

.term-list li {
  position: relative;
  padding-left: 22px;
}

.term-list li::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--term-color, var(--ink));
}

.term-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: clamp(1.16rem, 1.5vw, 1.4rem);
  line-height: 1.2;
}

.term-list span {
  display: block;
  max-width: 30ch;
  color: #44453f;
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  line-height: 1.4;
}

.brain-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.brain-img {
  width: 100%;
  height: auto;
  border: 1px solid var(--ink);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.brain-figure figcaption {
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 720;
  line-height: 1.4;
}

.brain-figure figcaption em {
  font-style: normal;
  font-weight: 850;
  color: var(--ink);
}

.story-arc {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(72px, 8vw, 124px) clamp(22px, 5vw, 78px);
  border-bottom: 1px solid var(--ink);
  color: var(--paper);
  background:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    var(--ink);
  background-size: 32px 32px;
}

.story-arc .eyebrow {
  color: #a9aaa2;
}

.arc-stage {
  position: relative;
  width: min(100%, 1180px);
  margin: clamp(150px, 20vh, 220px) auto 0;
}

.arc-robot {
  position: absolute;
  left: 50%;
  bottom: calc(100% - 8px);
  z-index: 3;
  width: clamp(132px, 15vw, 188px);
  height: auto;
  transform: translateX(-50%);
  filter: drop-shadow(0 14px 18px rgba(0, 0, 0, 0.45));
}

@media (prefers-reduced-motion: no-preference) {
  .arc-robot-eye,
  .arc-robot-bulb {
    animation: robot-evil 1.6s steps(1, end) infinite;
  }
}

@keyframes robot-evil {
  0%,
  70% {
    opacity: 1;
  }
  80% {
    opacity: 0.35;
  }
  90% {
    opacity: 1;
  }
}

.arc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: 100%;
  border: 1px solid #5f5f59;
  border-radius: 8px;
  background: #5f5f59;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.arc-grid article {
  position: relative;
  min-height: clamp(200px, 22vw, 270px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(22px, 3vw, 34px);
  background: #111111;
  overflow: hidden;
}

.arc-grid article::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 6px;
  background: var(--cyan);
}

.arc-grid article:nth-child(2)::after {
  background: var(--red);
}

.arc-grid article:nth-child(3)::after {
  background: var(--green);
}

.arc-grid span {
  position: relative;
  z-index: 1;
  width: fit-content;
  padding: 7px 9px;
  border: 1px solid #5f5f59;
  border-radius: 999px;
  color: #d7d7cf;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
}

.arc-grid h2 {
  position: relative;
  z-index: 1;
  max-width: 360px;
  margin: auto 0 0;
  font-size: clamp(1.5rem, 2.4vw, 2.5rem);
  line-height: 1.08;
}

.scrolly {
  display: grid;
  grid-template-columns: minmax(320px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(24px, 4vw, 58px);
  align-items: start;
  padding: 0 clamp(22px, 5vw, 78px);
  border-bottom: 1px solid var(--ink);
}

.chapters {
  padding: 12vh 0 18vh;
}

.chapter {
  min-height: calc(100vh - 58px);
  min-height: calc(100dvh - 58px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(24px, 3vw, 42px) 0;
  opacity: 0.18;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.chapter.is-active {
  opacity: 1;
}

.chapter h2 {
  font-size: clamp(2.6rem, 5vw, 5.4rem);
}

.chapter p:not(.eyebrow) {
  max-width: 600px;
  color: #2c2d29;
  font-size: clamp(1.24rem, 1.7vw, 1.62rem);
  line-height: 1.42;
}

.chapter-receipt {
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(0, 86px)) minmax(128px, auto);
  gap: 1px;
  width: min(100%, 420px);
  margin-top: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
  transition: opacity 160ms ease;
}

.chapter:not(.is-active) .chapter-receipt {
  opacity: 0;
}

.chapter-receipt span,
.chapter-receipt strong {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  background: var(--panel);
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1.1;
}

.chapter-receipt span {
  position: relative;
  flex-direction: column;
  align-items: flex-start;
  color: #2c2d29;
}

.chapter-receipt span::before {
  content: "";
  position: absolute;
  top: 10px;
  right: 10px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--green);
}

.chapter-receipt b,
.chapter-receipt small {
  display: block;
}

.chapter-receipt b {
  margin-bottom: 4px;
}

.chapter-receipt small {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 820;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chapter-receipt span[data-score="2"]::before {
  background: var(--amber);
}

.chapter-receipt span[data-score="1"]::before {
  background: var(--red);
}

.chapter-receipt strong {
  color: var(--paper);
  background: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mobile-evidence {
  display: none;
}

.mobile-stage-note {
  display: none;
}

.stage {
  position: sticky;
  top: 62px;
  height: calc(100vh - 82px);
  height: calc(100dvh - 82px);
  max-height: calc(100vh - 82px);
  max-height: calc(100dvh - 82px);
  display: flex;
  flex-direction: column;
  padding: clamp(12px, 1.8vw, 20px) 0;
  overflow: hidden;
}

.stage::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 -28px;
  width: 1px;
  background: var(--line);
}

.stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  background: linear-gradient(
    100deg,
    transparent 0 18%,
    color-mix(in srgb, var(--active-color, var(--cyan)), transparent 72%) 45%,
    transparent 72% 100%
  );
  transform: translateX(-105%);
}

.stage.case-switch::after {
  animation: stage-scan 620ms ease-out;
}

.stage-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
  margin-bottom: 10px;
}

.stage-top h2 {
  max-width: 820px;
  margin-bottom: 6px;
  font-size: clamp(1.85rem, 2.8vw, 3.25rem);
  line-height: 0.98;
}

#case-step {
  color: var(--ink);
}

#feature-meta {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

#feature-link {
  flex: 0 0 auto;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 760;
  text-underline-offset: 4px;
}

.case-rail {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
}

.case-rail li {
  position: relative;
  min-height: 38px;
  padding: 10px 0 0;
  color: var(--muted);
  cursor: pointer;
  transition:
    color 160ms ease,
    opacity 160ms ease;
}

.case-rail li::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--case-color);
  opacity: 0.34;
  transform: scaleX(1);
  transform-origin: left;
  transition:
    height 180ms ease,
    opacity 180ms ease;
}

.case-rail span,
.case-rail b,
.case-rail small {
  display: block;
}

.case-rail span {
  position: absolute;
  top: 9px;
  right: 0;
  color: var(--case-color);
  font-size: 0.7rem;
  font-weight: 950;
  line-height: 1;
}

.case-rail b {
  margin-right: 18px;
  font-size: 0.82rem;
  line-height: 1.05;
}

.case-rail small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.case-rail li:hover,
.case-rail li:focus-visible {
  color: var(--ink);
}

.case-rail li:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.case-rail li:hover::before,
.case-rail li:focus-visible::before {
  opacity: 0.8;
}

.case-rail li.is-active {
  color: var(--ink);
}

.case-rail li.is-active::before {
  height: 5px;
  opacity: 1;
}

.case-rail li.is-active small {
  color: var(--ink);
}

.verdict {
  margin-bottom: 10px;
  padding: 12px 14px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 4px 4px 0 var(--ink);
  font-size: clamp(1rem, 1.25vw, 1.18rem);
  font-weight: 850;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 10px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.evidence-grid > div {
  position: relative;
  --score-color: var(--green);
  padding: 10px 12px;
  background: var(--panel);
}

.evidence-grid > div::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--green);
}

.evidence-grid > div[data-score="2"]::before {
  background: var(--amber);
}

.evidence-grid > div[data-score="2"] {
  --score-color: var(--amber);
}

.evidence-grid > div[data-score="1"]::before,
.evidence-grid > div[data-score="0"]::before {
  background: var(--red);
}

.evidence-grid > div[data-score="1"],
.evidence-grid > div[data-score="0"] {
  --score-color: var(--red);
}

.evidence-grid span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.evidence-grid strong {
  display: block;
  margin-bottom: 5px;
  font-size: clamp(1rem, 1.35vw, 1.25rem);
  line-height: 1.05;
}

meter {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 9px;
  margin-bottom: 7px;
}

meter::-webkit-meter-bar {
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--soft);
}

meter::-webkit-meter-optimum-value {
  border-radius: 999px;
  background: var(--score-color);
}

meter::-moz-meter-bar {
  border-radius: 999px;
  background: var(--score-color);
}

.evidence-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.32;
}

.stage-body {
  min-height: 0;
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 0.82fr);
  grid-template-rows: minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  overflow: hidden;
}

.atlas-box,
.feature-card,
.chart-panel {
  min-height: 0;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.atlas-box {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.atlas-box > div,
.feature-card {
  padding: 12px 14px;
}

.atlas-box h3,
.feature-card h3,
.chart-panel h3 {
  margin-bottom: 5px;
  font-size: 0.98rem;
}

.feature-card h3 span {
  margin-left: 7px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.token-guide {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 720;
  line-height: 1.28;
}

.token-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 9px;
}

.token-legend span {
  min-height: 22px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--ink);
  font-size: 0.69rem;
  font-weight: 820;
  line-height: 1;
}

.token-legend span::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--soft);
}

.token-legend span[data-evidence="supports"]::before {
  background: color-mix(in srgb, var(--green), white 68%);
}

.token-legend span[data-evidence="context"]::before {
  background: color-mix(in srgb, var(--amber), white 58%);
}

.token-legend span[data-evidence="misleading"]::before {
  background: color-mix(in srgb, var(--red), white 64%);
  box-shadow: inset 0 -2px 0 var(--red);
}

.atlas-box p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.35;
}

#atlas-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  border-top: 1px solid var(--line);
  background: #fbfbf7;
  cursor: crosshair;
  touch-action: manipulation;
}

#atlas-canvas:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: -4px;
}

.feature-card {
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 12px 14px;
  overflow: hidden;
}

.token-pills {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-height: 66px;
  margin-bottom: 12px;
  overflow: hidden;
}

.token-pill {
  padding: 5px 8px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
}

.token-pill[data-evidence="supports"] {
  background: color-mix(in srgb, var(--green), white 68%);
}

.token-pill[data-evidence="context"] {
  background: color-mix(in srgb, var(--amber), white 58%);
}

.token-pill[data-evidence="misleading"] {
  color: var(--ink);
  background: color-mix(in srgb, var(--red), white 64%);
  box-shadow: inset 0 -2px 0 var(--red);
}

.token-pill[data-evidence="neutral"] {
  color: #4a4b46;
  background: #ededeb;
  border-color: #9b9b94;
}

.token-pills .token-pill:nth-child(n + 7) {
  display: none;
}

.source-callout {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  align-items: start;
  margin: 0 0 10px;
  padding: 14px 16px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background:
    linear-gradient(90deg, var(--active-color, var(--cyan)) 0 4px, transparent 4px),
    var(--panel);
}

.source-callout span,
.source-callout strong {
  display: block;
}

.source-callout span {
  margin-bottom: 0;
  padding-left: 6px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  line-height: 1;
  text-transform: uppercase;
}

.source-callout strong {
  padding-left: 6px;
  color: #2c2d29;
  font-size: clamp(1.08rem, 1.22vw, 1.26rem);
  font-weight: 780;
  line-height: 1.34;
}

.activation-window {
  min-height: 208px;
  flex: 1 1 auto;
  max-height: none;
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfbf7;
  font-size: clamp(1.14rem, 1.34vw, 1.32rem);
  line-height: 1.95;
}

.stage-insight {
  flex: 0 0 auto;
  margin-top: 11px;
  padding: 12px 14px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background:
    linear-gradient(90deg, var(--active-color, var(--cyan)) 0 5px, transparent 5px),
    var(--panel);
}

.stage-insight span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  line-height: 1;
  text-transform: uppercase;
}

.stage-insight p {
  margin: 0;
  padding-left: 7px;
  color: #2c2d29;
  font-size: clamp(0.98rem, 1.08vw, 1.06rem);
  font-weight: 720;
  line-height: 1.35;
}

.hot-token {
  display: inline;
  padding: 2px 4px;
  border-radius: 3px;
  background: rgba(0, 188, 212, calc(0.05 + var(--heat) * 0.55));
  box-shadow: inset 0 -2px 0 rgba(8, 8, 8, calc(var(--heat) * 0.7));
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.hot-token.joins-next {
  padding-right: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.hot-token.is-joined {
  padding-left: 0;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.hot-token.peak {
  outline: 2px solid var(--red);
  background: rgba(255, 64, 87, 0.24);
  animation: token-peak-pulse 1.8s ease-in-out infinite;
}

/* ===== Redesigned example stage ===== */
.case-kicker {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-input {
  flex: 0 0 auto;
  margin-top: 6px;
}

.case-input .activation-window {
  min-height: auto;
  max-height: 150px;
  font-size: clamp(1.02rem, 1.2vw, 1.26rem);
  line-height: 1.8;
}

.case-mid {
  flex: 1 1 auto;
  min-height: 0;
  margin-top: clamp(12px, 1.6vw, 18px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(186px, 0.9fr);
  gap: clamp(12px, 1.6vw, 20px);
  align-items: stretch;
}

.case-col {
  display: flex;
  flex-direction: column;
  gap: clamp(10px, 1.4vw, 16px);
  min-height: 0;
}

.case-brain {
  flex: 0 0 auto;
}

.case-label {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--panel);
  color: var(--active-color, var(--cyan));
  font-size: clamp(1.2rem, 1.7vw, 1.7rem);
  line-height: 1.1;
  box-shadow: 3px 3px 0 var(--ink);
}

.case-label::before {
  content: "“";
}

.case-label::after {
  content: "”";
}

.case-heatkey {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 9px;
}

.case-heatkey .hk {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 750;
}

.case-heatkey .hk::before {
  content: "";
  width: 16px;
  height: 14px;
  border-radius: 3px;
}

.case-heatkey .hk-peak::before {
  border: 2px solid var(--red);
  background: rgba(255, 64, 87, 0.24);
}

.case-heatkey .hk-warm::before {
  background: rgba(0, 188, 212, 0.4);
}

.case-match {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-height: 0;
}

.match-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.match-row > span {
  flex: 0 0 auto;
  width: 116px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
}

.match-row > b {
  flex: 1 1 auto;
  font-size: 0.98rem;
  font-weight: 850;
  line-height: 1.15;
}

.match-row::after {
  content: "✓";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 900;
}

.match-row[data-state="mixed"] {
  border-color: color-mix(in srgb, var(--amber), transparent 45%);
}

.match-row[data-state="mixed"]::after {
  content: "≈";
  background: var(--amber);
  color: var(--ink);
}

.match-row[data-state="bad"] {
  border-color: color-mix(in srgb, var(--red), transparent 45%);
  background: #fff5f7;
}

.match-row[data-state="bad"]::after {
  content: "✕";
  background: var(--red);
  color: #fff;
}

.case-mascot {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  padding: 6px 0;
}

.case-mascot svg {
  width: auto;
  height: clamp(58px, 9vh, 92px);
}

.case-verdict {
  flex: 0 0 auto;
  padding: 12px 16px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: clamp(1rem, 1.35vw, 1.32rem);
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-align: center;
}

.case-verdict[data-state="good"] {
  border-color: var(--green);
  background: var(--green);
}

.case-verdict[data-state="mixed"] {
  border-color: var(--amber);
  background: var(--amber);
  color: var(--ink);
}

.case-verdict[data-state="bad"] {
  border-color: var(--red);
  background: var(--red);
}

.case-map {
  position: relative;
  margin: 0;
  min-height: 210px;
  border: 1px solid var(--ink);
  border-radius: 10px;
  background: #fbfaf5;
  overflow: hidden;
}

.case-map #atlas-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-top: none;
}

.case-map figcaption {
  position: absolute;
  right: 8px;
  bottom: 8px;
  z-index: 2;
}

.case-map figcaption a {
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(247, 247, 242, 0.92);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-decoration: none;
}

.case-map figcaption a:hover {
  color: var(--ink);
}

/* ===== Zoom-out: rarity + matches interactive ===== */
.zoomout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(12px, 2vh, 24px);
  padding: clamp(30px, 4vw, 60px) clamp(22px, 5vw, 78px);
}

.zoomout-head {
  text-align: center;
}

.zoomout-head h2 {
  max-width: 18ch;
  margin: 6px auto 0;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.04;
}

.rare-stage {
  position: relative;
  flex: 0 0 auto;
  width: min(100%, 980px);
  height: min(52vh, 480px);
  margin: 0 auto;
  border: 1px solid var(--ink);
  border-radius: 14px;
  background:
    linear-gradient(rgba(8, 8, 8, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 8, 8, 0.025) 1px, transparent 1px),
    #fbfaf5;
  background-size: 30px 30px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

#rare-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.rare-readout {
  position: absolute;
  top: clamp(14px, 2.4vw, 26px);
  left: clamp(16px, 2.6vw, 30px);
  z-index: 2;
  pointer-events: none;
}

.rare-readout strong {
  display: block;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.92;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.rare-readout span {
  display: block;
  max-width: 22ch;
  margin-top: 8px;
  color: var(--muted);
  font-size: clamp(0.82rem, 1.1vw, 1rem);
  font-weight: 750;
  line-height: 1.3;
}

.rare-prompt {
  position: absolute;
  right: clamp(16px, 2.6vw, 28px);
  bottom: clamp(14px, 2.4vw, 24px);
  left: auto;
  z-index: 2;
  max-width: 18ch;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  text-align: right;
  pointer-events: none;
  transition: opacity 220ms ease;
}

.rare-legend {
  position: absolute;
  right: clamp(16px, 2.6vw, 28px);
  bottom: clamp(14px, 2.4vw, 24px);
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.rare-legend[hidden] {
  display: none;
}

.rare-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  font-weight: 800;
}

.rare-legend span::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.rare-legend .rl-bad::before {
  background: var(--red);
}

.rare-legend .rl-good::before {
  background: var(--green);
}

.rare-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: min(100%, 980px);
  margin: 0 auto;
}

.rare-zoomrow {
  display: flex;
  align-items: center;
  gap: 14px;
  width: min(100%, 620px);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.02em;
}

.rare-zoomrow[hidden] {
  display: none;
}

.rare-zoomrow span {
  flex: 0 0 auto;
}

#rare-slider {
  flex: 1 1 auto;
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ink), var(--line));
  cursor: pointer;
}

#rare-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  cursor: grab;
}

#rare-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--red);
  cursor: grab;
}

.rare-btn {
  padding: 11px 20px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-family: inherit;
  font-size: 0.96rem;
  font-weight: 850;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(8, 8, 8, 0.2);
}

.rare-btn:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 rgba(8, 8, 8, 0.2);
}

.rare-btn[hidden] {
  display: none;
}

.rare-btn-ghost {
  background: var(--panel);
  color: var(--ink);
}

.patterns {
  padding: clamp(72px, 9vw, 130px) clamp(22px, 5vw, 78px);
}

.section-heading {
  max-width: 980px;
  margin-bottom: 34px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: clamp(1.14rem, 1.5vw, 1.35rem);
}

.pattern-slide {
  width: min(100%, 1180px);
  min-height: calc(100vh - 128px);
  min-height: calc(100dvh - 128px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-bottom: clamp(62px, 12vh, 140px);
}

.pattern-slide:last-child {
  margin-bottom: 0;
}

.pattern-slide > .chart-panel,
.pattern-slide .pattern-grid,
.pattern-slide .method-strip,
.pattern-slide .case-key {
  width: 100%;
}

.pattern-slide-intro {
  gap: 24px;
}

.pattern-slide-matrix,
.pattern-slide-charts,
.pattern-slide-agreement {
  justify-content: center;
}

.pattern-slide-context {
  gap: 24px;
}

.reader-path {
  width: min(100%, 1180px);
  display: grid;
  grid-template-columns: minmax(170px, 0.5fr) repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: -8px 0 28px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.reader-path p,
.reader-path div {
  min-height: 116px;
  margin: 0;
  padding: 16px 18px;
  background: var(--panel);
}

.reader-path p {
  display: flex;
  align-items: center;
  color: var(--paper);
  background: var(--ink);
  font-size: clamp(1.05rem, 1.35vw, 1.32rem);
  font-weight: 920;
  line-height: 1.12;
}

.reader-path span {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  color: var(--paper);
  background: var(--ink);
  font-size: 0.78rem;
  font-weight: 950;
  line-height: 1;
}

.reader-path strong,
.reader-path small {
  display: block;
}

.reader-path strong {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: clamp(1.08rem, 1.32vw, 1.28rem);
  font-weight: 900;
  line-height: 1.08;
}

.reader-path small {
  max-width: 260px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 720;
  line-height: 1.28;
}

.data-scope {
  width: min(100%, 1180px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: -12px 0 28px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.data-scope span {
  min-height: 64px;
  display: block;
  padding: 13px 15px;
  border-top: 4px solid var(--cyan);
  color: #2c2d29;
  background: var(--panel);
  font-size: clamp(0.95rem, 1.05vw, 1.06rem);
  font-weight: 820;
  line-height: 1.22;
}

.data-scope span:nth-child(2) {
  border-top-color: var(--green);
}

.data-scope span:nth-child(3) {
  border-top-color: var(--red);
}

.data-scope code {
  font-size: 0.92em;
  white-space: nowrap;
}

.finding-strip {
  width: min(100%, 1180px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 24px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.finding-strip div {
  position: relative;
  min-height: 156px;
  padding: clamp(16px, 2vw, 22px);
  background: var(--panel);
}

.finding-strip div::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: var(--cyan);
}

.finding-strip div:nth-child(2)::before {
  background: var(--green);
}

.finding-strip div:nth-child(3)::before {
  background: var(--red);
}

.finding-strip span {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  line-height: 1;
  text-transform: uppercase;
}

.finding-strip strong {
  display: block;
  max-width: 310px;
  color: var(--ink);
  font-size: clamp(1.2rem, 1.75vw, 1.72rem);
  font-weight: 900;
  line-height: 1.08;
}

.finding-strip b {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: clamp(2.6rem, 4.2vw, 4.4rem);
  font-weight: 950;
  line-height: 0.9;
}

.method-strip {
  width: min(100%, 1180px);
  display: grid;
  grid-template-columns: minmax(160px, 0.48fr) repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 24px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.method-strip p,
.method-strip div {
  min-height: 96px;
  margin: 0;
  padding: 15px 16px;
  background: var(--panel);
}

.method-strip p {
  display: flex;
  align-items: center;
  color: var(--paper);
  background: var(--ink);
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  line-height: 1.15;
  text-transform: uppercase;
}

.method-strip span {
  display: block;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  line-height: 1;
  text-transform: uppercase;
}

.method-strip strong {
  display: block;
  max-width: 230px;
  color: #2c2d29;
  font-size: clamp(0.95rem, 1.12vw, 1.08rem);
  font-weight: 760;
  line-height: 1.28;
}

.case-key {
  position: relative;
  max-width: 1180px;
  display: grid;
  grid-template-columns: minmax(240px, 0.58fr) minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin: 0 0 24px;
  padding: 14px 16px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.case-key p {
  margin-bottom: 0;
  color: #2c2d29;
  font-size: 0.98rem;
  font-weight: 760;
  line-height: 1.35;
}

.case-key div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  pointer-events: none;
}

.case-key a {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 32px;
  padding: 0 8px;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.01);
  font-size: 0.88rem;
  font-weight: 750;
  text-decoration: none;
  pointer-events: auto;
}

.case-key a[data-feature-id] {
  cursor: pointer;
  transition:
    border-color 140ms ease,
    color 140ms ease,
    background-color 140ms ease;
}

.case-key a[data-feature-id]:focus-visible,
.case-key a.is-previewed {
  border-bottom-color: var(--ink);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.6);
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.case-key i {
  width: 9px;
  height: 9px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--case-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--case-color), transparent 76%);
}

.pattern-focus {
  max-width: 1180px;
  display: grid;
  grid-template-columns: 148px minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 18px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

@media (min-width: 900px) {
  .pattern-focus {
    position: sticky;
    top: 70px;
    z-index: 12;
    box-shadow: 0 10px 24px rgba(247, 247, 242, 0.78);
  }

  .pattern-slide-matrix,
  .pattern-slide-context,
  .pattern-slide-charts,
  .pattern-slide-agreement {
    padding-top: 156px;
  }
}

.pattern-focus span,
.pattern-focus strong {
  min-height: 48px;
  display: flex;
  align-items: center;
  background: var(--panel);
}

.pattern-focus span {
  padding: 0 14px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.pattern-focus strong {
  padding: 10px 14px;
  color: #2c2d29;
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  font-weight: 820;
  line-height: 1.22;
}

.pattern-hint {
  max-width: 1180px;
  margin: -6px 0 18px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 760;
}

.pattern-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
  gap: 18px;
  margin-bottom: 18px;
}

.chart-panel {
  padding: 18px;
}

.pattern-scroll-target {
  scroll-margin-top: 172px;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.pattern-scroll-target.is-scroll-focus {
  border-color: var(--cyan);
  box-shadow: 8px 8px 0 rgba(0, 188, 212, 0.24);
  transform: translateY(-2px);
}

.pattern-grid.is-scroll-focus .chart-panel {
  border-color: var(--cyan);
  box-shadow: 8px 8px 0 rgba(0, 188, 212, 0.18);
}

@media (prefers-reduced-motion: reduce) {
  .pattern-scroll-target {
    transition: none;
  }

  .pattern-scroll-target.is-scroll-focus {
    transform: none;
  }
}

.chart-note {
  max-width: 620px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.4;
}

.agreement-takeaway {
  width: min(100%, 760px);
  display: grid;
  grid-template-columns: 128px minmax(0, 0.62fr) minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 12px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.agreement-takeaway span,
.agreement-takeaway strong,
.agreement-takeaway p {
  min-height: 54px;
  display: flex;
  align-items: center;
  margin: 0;
  padding: 10px 12px;
  background: var(--panel);
}

.agreement-takeaway span {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  line-height: 1.1;
  text-transform: uppercase;
}

.agreement-takeaway strong {
  color: var(--ink);
  font-size: clamp(1rem, 1.25vw, 1.18rem);
  font-weight: 900;
  line-height: 1.08;
}

.agreement-takeaway p {
  display: block;
  color: #2c2d29;
  font-size: 0.92rem;
  font-weight: 720;
  line-height: 1.24;
}

.agreement-takeaway b {
  font-weight: 950;
}

.chart-reading {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 12px;
  color: #2c2d29;
  font-size: 0.82rem;
  font-weight: 760;
  line-height: 1.25;
}

.chart-reading span {
  min-width: 0;
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  overflow-wrap: anywhere;
}

.chart-reading i {
  flex: 0 0 auto;
  display: inline-block;
}

.shade-ramp {
  width: 34px;
  height: 9px;
  border: 1px solid var(--ink);
  background: linear-gradient(90deg, #f4f4ee, #080808);
}

.case-dot {
  position: relative;
  width: 32px;
  height: 12px;
}

.case-dot::before,
.case-dot::after {
  content: "";
  position: absolute;
  top: 1px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--paper);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--ink);
}

.case-dot::before {
  left: 0;
  background: var(--red);
}

.case-dot::after {
  left: 17px;
  background: var(--green);
}

.bar-icon {
  width: 22px;
  height: 12px;
  border: 1px solid var(--ink);
  background:
    linear-gradient(90deg, transparent 0 22%, #080808 22% 38%, transparent 38% 48%, #080808 48% 68%, transparent 68% 76%, #080808 76%);
}

.line-icon {
  width: 24px;
  height: 13px;
  background:
    repeating-linear-gradient(90deg, var(--red) 0 4px, transparent 4px 8px) center / 100% 2px no-repeat;
}

.layer-icon {
  width: 34px;
  height: 12px;
  border-bottom: 2px solid var(--ink);
  background:
    linear-gradient(var(--ink), var(--ink)) 0 7px / 2px 7px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 50% 7px / 2px 7px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 100% 7px / 2px 7px no-repeat;
}

.score-key {
  width: 12px;
  height: 12px;
  border: 1px solid var(--ink);
  border-radius: 3px;
}

.score-key-good {
  background: var(--green);
}

.score-key-mixed {
  background: var(--amber);
}

.score-key-weak {
  background: var(--red);
}

.evidence-matrix-panel {
  width: min(100%, 1180px);
  margin: 0 0 24px;
}

#evidence-matrix {
  display: block;
  width: 100%;
  height: 340px;
}

#evidence-matrix .story-case-link {
  cursor: pointer;
}

#evidence-matrix .story-case-link:focus {
  outline: none;
}

#evidence-matrix .story-case-link:focus-visible .matrix-cell,
#evidence-matrix .story-case-link.is-previewed .matrix-cell {
  stroke-width: 3px;
}

#evidence-matrix .matrix-row-hit {
  pointer-events: all;
}

/* ===== Topics page (heatmap, one page) ===== */
.topics {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(40px, 5vw, 72px) clamp(22px, 5vw, 78px);
  border-top: 1px solid var(--line);
}

.topics-copy {
  max-width: 460px;
}

.topics-copy h2 {
  margin: 4px 0 14px;
  font-size: clamp(1.9rem, 3vw, 3rem);
  line-height: 1.04;
}

.topics-sub {
  margin: 0 0 clamp(22px, 3vw, 30px);
  color: #44453f;
  font-size: clamp(1rem, 1.25vw, 1.18rem);
  line-height: 1.4;
}

.topics-legend {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.topics-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #2c2d29;
  font-size: 0.95rem;
  font-weight: 700;
}

.topics-legend .tl-dots {
  display: inline-flex;
  gap: 4px;
}

.topics-legend .tl-dots i {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--c, var(--ink));
  border: 2px solid #fbfaf5;
  box-shadow: 0 0 0 1px rgba(8, 8, 8, 0.15);
}

.topics-legend .tl-axis b {
  font-weight: 900;
}

.topics-vis {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.topics-vis #heatmap {
  height: min(74vh, 600px);
}

@media (max-width: 920px) {
  .topics {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .topics-vis #heatmap {
    height: 60vh;
  }
}

#heatmap,
#density-histogram,
#agreement-strip {
  display: block;
  width: 100%;
  height: 375px;
}

#agreement-strip {
  height: 260px;
}

#heatmap rect:focus,
#density-histogram rect:focus,
#agreement-strip rect:focus {
  outline: none;
}

.story-density-line,
.agreement-marker {
  pointer-events: none;
}

.story-case-link {
  cursor: pointer;
  pointer-events: auto;
}

.story-hit-target {
  pointer-events: all;
}

.story-case-link:focus {
  outline: none;
  filter: drop-shadow(0 0 6px rgba(8, 8, 8, 0.42));
}

.story-case-link:focus-visible {
  stroke: var(--ink) !important;
  stroke-width: 5px !important;
}

.story-case-link:focus-visible .story-dot,
.story-case-link:focus-visible .story-density-dot,
.story-case-link:focus-visible .agreement-marker,
.story-case-link.is-previewed .story-dot,
.story-case-link.is-previewed .story-density-dot,
.story-case-link.is-previewed .agreement-marker {
  stroke: var(--ink);
  stroke-width: 5px;
}

#agreement-strip rect[tabindex]:focus-visible {
  stroke: var(--red) !important;
  stroke-width: 4px !important;
}

#heatmap rect[tabindex]:focus-visible,
#density-histogram rect[tabindex]:focus-visible {
  stroke: var(--red) !important;
  stroke-width: 4px !important;
}

[data-feature-id].is-dimmed {
  opacity: 0.16;
}

[data-feature-id].is-previewed {
  opacity: 1;
  filter: drop-shadow(0 0 5px rgba(8, 8, 8, 0.28));
}

.axis text {
  fill: var(--muted);
  font-size: 11px;
}

.axis path,
.axis line {
  stroke: var(--line);
}

.sae-intro {
  min-height: 100vh;
  padding: clamp(44px, 5vw, 72px) clamp(22px, 6vw, 96px);
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(18px, 2.4vw, 30px);
}

.sae-intro-heading {
  max-width: 920px;
}

.sae-intro-heading h2 {
  margin: 6px 0 14px;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.08;
}

.sae-intro-heading p {
  color: #2c2d29;
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  line-height: 1.5;
  max-width: 760px;
}

.probe-key {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
}

.probe-key span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.probe-key span::before {
  content: "";
  width: 13px;
  height: 13px;
  border-radius: 4px;
}

.k-sees::before {
  background: #0a8fa3;
}

.k-fires::before {
  background: #ff4057;
}

.probe-table {
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 1040px;
  border-top: 1px solid var(--ink);
}

.probe-table li {
  padding: clamp(13px, 1.6vw, 19px) 6px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: clamp(1.05rem, 1.45vw, 1.4rem);
  font-weight: 500;
  line-height: 1.4;
}

.probe-sees {
  color: #0a8fa3;
  font-weight: 800;
}

.probe-sees u {
  text-decoration: underline;
  text-decoration-color: #0a8fa3;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.probe-fires {
  color: #ff4057;
  font-weight: 800;
}

.probe-table .is-mismatch {
  padding-left: 16px;
  background: #fff5f7;
  box-shadow: inset 3px 0 0 #ff4057;
}

.probe-flag {
  color: #ff4057;
  font-size: 0.86em;
  font-weight: 700;
}

/* ===== The Sea of Features (interactive map) ===== */
.sea {
  min-height: 100vh;
  padding: clamp(40px, 5vw, 72px) clamp(22px, 5vw, 78px);
  border-top: 1px solid var(--line);
  background: var(--paper);
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
}

.sea-copy {
  max-width: 460px;
}

.sea h2 {
  margin: 4px 0 6px;
  font-size: clamp(1.9rem, 3vw, 2.9rem);
  line-height: 1.04;
}

.sea h2 span {
  color: var(--muted);
  font-weight: 850;
}

.sea-sub {
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  color: var(--ink);
  font-size: clamp(1.05rem, 1.5vw, 1.35rem);
  font-weight: 800;
}

.sea-list {
  margin: 0 0 clamp(20px, 2.6vw, 28px);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.sea-list li {
  position: relative;
  padding-left: 20px;
}

.sea-list li::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: var(--ink);
}

.sea-list strong {
  display: block;
  font-size: clamp(1.02rem, 1.3vw, 1.18rem);
}

.sea-list span {
  display: block;
  color: #44453f;
  font-size: clamp(0.92rem, 1.1vw, 1.02rem);
  line-height: 1.38;
}

.sea-pie {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 22px);
}

.sea-pie-chart {
  position: relative;
  flex: 0 0 auto;
  width: clamp(146px, 15vw, 178px);
  aspect-ratio: 1;
}

#sea-pie-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.sea-slice {
  stroke: #fbfaf5;
  stroke-width: 1.5;
  cursor: pointer;
  transform-box: fill-box;
  transform-origin: center;
  transition:
    transform 170ms ease,
    opacity 170ms ease;
}

.sea-pie-chart:hover .sea-slice:not(.is-active) {
  opacity: 0.38;
}

.sea-slice.is-active {
  transform: translate(var(--dx, 0), var(--dy, 0)) scale(1.09);
}

.sea-pie-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
}

.sea-pie-center strong {
  font-size: clamp(1.3rem, 1.9vw, 1.65rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.sea-pie-center span {
  margin-top: 4px;
  max-width: 92px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.18;
}

.sea-pie-center strong[style] {
  color: var(--swatch, var(--ink));
}

.sea-pie-legend {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
  min-width: 0;
}

.sea-pie-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #2c2d29;
  font-size: 0.8rem;
  font-weight: 650;
  cursor: pointer;
  transition: color 140ms ease;
}

.sea-pie-legend li i {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--swatch, var(--ink));
}

.sea-pie-legend li.is-active {
  font-weight: 880;
  color: var(--ink);
}

/* --- stage --- */
.sea-stage {
  position: relative;
  margin: 0;
  height: min(72vh, 600px);
  border: 1px solid var(--ink);
  border-radius: 12px;
  background:
    linear-gradient(rgba(8, 8, 8, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 8, 8, 0.03) 1px, transparent 1px),
    #fbfaf5;
  background-size: 28px 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

#sea-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

#sea-canvas:focus-visible {
  outline: none;
}

.sea-banner {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  max-width: min(58%, 420px);
  padding: 8px 12px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: rgba(247, 247, 242, 0.94);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1.2;
}

.sea-banner.is-reveal {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.sea-zoom-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  padding: 9px 13px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.02em;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(8, 8, 8, 0.22);
}

.sea-zoom-btn:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 rgba(8, 8, 8, 0.22);
}

.sea-zoom-btn .sea-zoom-close {
  display: none;
}

.sea-stage.is-zoomed .sea-zoom-btn .sea-zoom-open {
  display: none;
}

.sea-stage.is-zoomed .sea-zoom-btn .sea-zoom-close {
  display: inline;
}

/* hover info table, upper-right */
.sea-info {
  position: absolute;
  top: 60px;
  right: 14px;
  z-index: 3;
  width: min(280px, 70%);
  padding: 14px 16px;
  border: 1px solid var(--ink);
  border-radius: 10px;
  background: rgba(247, 247, 242, 0.97);
  box-shadow: 4px 4px 0 var(--ink);
}

.sea-info[hidden] {
  display: none;
}

.sea-info-tag {
  display: inline-block;
  margin-bottom: 6px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--swatch, var(--ink));
  color: #fff;
  font-size: 0.64rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.sea-info-id {
  display: block;
  margin-bottom: 10px;
  font-size: 0.92rem;
  line-height: 1.2;
  word-break: break-all;
}

.sea-info-table {
  margin: 0;
}

.sea-info-table div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  border-top: 1px solid var(--line);
}

.sea-info-table dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.sea-info-table dd {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 850;
  text-align: right;
}

/* press-X prompt, bottom-left */
.sea-prompt {
  position: absolute;
  bottom: 14px;
  left: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 13px 8px 9px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: rgba(247, 247, 242, 0.94);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
}

.sea-prompt kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 26px;
  padding: 0 6px;
  border: 1px solid var(--ink);
  border-bottom-width: 3px;
  border-radius: 6px;
  background: var(--panel);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 900;
}

@media (prefers-reduced-motion: no-preference) {
  .sea-prompt kbd {
    animation: sea-kbd 1.6s ease-in-out infinite;
  }
}

@keyframes sea-kbd {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

.sea-prompt.is-done kbd {
  animation: none;
}

/* legend overlay (shown when zoomed) */
.sea-legend {
  position: absolute;
  bottom: 14px;
  right: 14px;
  z-index: 2;
  display: none;
  flex-wrap: wrap;
  gap: 6px 14px;
  max-width: 60%;
  padding: 12px 14px;
  border: 1px solid var(--ink);
  border-radius: 10px;
  background: rgba(247, 247, 242, 0.95);
}

.sea-legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.82rem;
  font-weight: 750;
}

.sea-legend i {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--swatch, var(--ink));
}

/* --- zoomed (full screen) state --- */
.sea-stage.is-zoomed {
  position: fixed;
  inset: 0;
  z-index: 60;
  height: auto;
  border: none;
  border-radius: 0;
}

.sea-stage.is-zoomed .sea-legend {
  display: flex;
}

.sea-stage.is-zoomed .sea-banner {
  font-size: 0.95rem;
  padding: 10px 16px;
}

body.sea-locked {
  overflow: hidden;
}

@media (max-width: 920px) {
  .sea {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .sea-stage {
    height: min(64vh, 520px);
  }
}

.implications {
  padding: clamp(48px, 7vw, 80px) clamp(22px, 5vw, 78px);
  background: #fbfaf5;
  border-top: 1px solid var(--ink);
  display: grid;
  gap: clamp(18px, 2.5vw, 28px);
}

.implications h2 {
  max-width: 880px;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.06;
  margin: 0;
}

.implications-lede {
  max-width: 820px;
  margin: 0;
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  line-height: 1.5;
  color: #2c2d29;
}

.implications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 16px;
  max-width: 1100px;
}

.implications-grid article {
  position: relative;
  padding: 18px 22px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 4px 4px 0 var(--ink);
  display: grid;
  gap: 8px;
}

.implications-tag {
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 850;
}

.implications-grid h3 {
  margin: 0;
  font-size: clamp(1.12rem, 1.6vw, 1.36rem);
  letter-spacing: -0.005em;
}

.implications-grid p {
  margin: 0;
  color: #2c2d29;
  font-size: 0.95rem;
  line-height: 1.5;
}

.implications-closing {
  max-width: 820px;
  margin: 0;
  font-size: clamp(0.96rem, 1.2vw, 1.08rem);
  line-height: 1.5;
  color: #2c2d29;
  font-style: italic;
}


.writeup {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(44px, 6vw, 80px) clamp(22px, 5vw, 78px);
  border-top: 1px solid var(--ink);
  background: rgba(255, 255, 255, 0.55);
}

.writeup-inner {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}


.writeup-heading {
  max-width: 980px;
}

.writeup-heading h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 3.4vw, 3.2rem);
  line-height: 1;
}

.writeup-lede {
  max-width: 820px;
  margin: 0;
  color: #2c2d29;
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  line-height: 1.38;
}

.writeup-overview {
  display: grid;
  grid-template-columns: minmax(200px, 0.38fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.writeup-overview-label {
  position: sticky;
  top: 82px;
}

.writeup-overview-label .eyebrow {
  margin-bottom: 18px;
}

.writeup-overview-label p {
  margin: 0;
  color: #2c2d29;
  font-size: clamp(1rem, 1.2vw, 1.14rem);
  font-weight: 720;
  line-height: 1.42;
}

.writeup-overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.writeup-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 4px 4px 0 var(--ink);
  display: grid;
  gap: 10px;
  overflow: hidden;
}

.writeup-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  border-top-left-radius: 7px;
  border-top-right-radius: 7px;
  background: var(--card-accent, var(--ink));
}

.writeup-card-tag {
  margin-top: 2px;
  color: var(--card-accent, var(--muted));
  font-size: 0.66rem;
  font-weight: 850;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.writeup-card h3 {
  margin: 0;
  font-size: clamp(1.05rem, 1.3vw, 1.22rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.writeup-card p {
  margin: 0;
  color: #2c2d29;
  font-size: 0.95rem;
  line-height: 1.5;
}


.writeup-challenges {
  border-top: 1px solid var(--ink);
  padding-top: clamp(28px, 3.5vw, 42px);
}

.writeup-challenges .eyebrow {
  margin-bottom: 10px;
}

.writeup-challenges-heading {
  margin: 0 0 clamp(22px, 3vw, 36px);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.06;
  max-width: 820px;
}

.writeup-challenges-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.writeup-challenge {
  position: relative;
  padding: clamp(22px, 2.8vw, 34px);
  background: var(--panel);
  display: grid;
  gap: 10px;
}

.writeup-challenge-num {
  font-size: clamp(2.2rem, 3.5vw, 3.2rem);
  font-weight: 950;
  line-height: 1;
  color: var(--line);
  letter-spacing: -0.04em;
  margin-bottom: 4px;
}

.writeup-challenge h4 {
  margin: 0;
  font-size: clamp(1.05rem, 1.3vw, 1.22rem);
  line-height: 1.14;
  font-weight: 900;
}

.writeup-challenge p {
  margin: 0;
  color: #2c2d29;
  font-size: 0.97rem;
  line-height: 1.52;
}


.writeup-spine {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.writeup-spine div {
  min-height: 148px;
  padding: clamp(20px, 2.8vw, 32px);
  background: #111111;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.writeup-spine span {
  display: block;
  margin-bottom: 18px;
  color: #a9aaa2;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.writeup-spine strong {
  display: block;
  max-width: 340px;
  color: #ffffff;
  font-size: clamp(1.08rem, 1.55vw, 1.55rem);
  font-weight: 900;
  line-height: 1.1;
}

.writeup-spine div:first-child {
  border-left: 4px solid var(--cyan);
}

.writeup-spine div:nth-child(2) {
  border-left: 4px solid var(--red);
}

.writeup-spine div:last-child {
  border-left: 4px solid var(--green);
}


@media (max-width: 1120px) {
  .writeup-overview {
    grid-template-columns: 1fr;
  }

  .writeup-overview-label {
    position: static;
  }

  .writeup-spine {
    grid-template-columns: 1fr;
  }

  .writeup-spine div:first-child {
    border-left: none;
    border-top: 4px solid var(--cyan);
  }

  .writeup-spine div:nth-child(2) {
    border-left: none;
    border-top: 4px solid var(--red);
  }

  .writeup-spine div:last-child {
    border-left: none;
    border-top: 4px solid var(--green);
  }
}

@media (max-width: 720px) {
  .writeup-overview-grid {
    grid-template-columns: 1fr;
  }

  .writeup-challenges-grid {
    grid-template-columns: 1fr;
  }

  .writeup-challenge-num {
    font-size: 2rem;
  }

  .writeup-spine strong {
    font-size: 1.08rem;
  }
}

.writeup-qa-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.writeup-qa-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.writeup-qa-card:first-child {
  border-top: 4px solid var(--cyan);
}

.writeup-qa-card:last-child {
  border-top: 4px solid var(--violet);
}

.writeup-qa-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(16px, 2vw, 22px);
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}

.writeup-qa-num {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.82rem;
  font-weight: 920;
  line-height: 1;
}

.writeup-qa-card:first-child .writeup-qa-num {
  color: #0e6f86;
  background: color-mix(in srgb, var(--cyan), white 82%);
}

.writeup-qa-card:last-child .writeup-qa-num {
  color: #4a2eb8;
  background: color-mix(in srgb, var(--violet), white 82%);
}

.writeup-qa-label h3 {
  margin: 0;
  padding-top: 4px;
  font-size: clamp(0.98rem, 1.2vw, 1.1rem);
  font-weight: 900;
  line-height: 1.25;
}

.writeup-qa-body {
  padding: clamp(18px, 2.4vw, 26px);
  flex: 1;
}

.writeup-qa-body p {
  margin: 0;
  color: #2c2d29;
  font-size: clamp(0.97rem, 1.1vw, 1.06rem);
  line-height: 1.65;
}

@media (max-width: 720px) {
  .writeup-qa-grid {
    grid-template-columns: 1fr;
  }
}

.project-note {
  padding: clamp(48px, 7vw, 86px) clamp(22px, 5vw, 78px);
  border-top: 1px solid var(--ink);
  background: rgba(255, 255, 255, 0.55);
}

.project-note > div {
  max-width: 1180px;
}

.project-note p:not(.eyebrow) {
  color: #2c2d29;
  font-size: clamp(1.05rem, 1.35vw, 1.28rem);
  line-height: 1.5;
}

.project-note h2 {
  max-width: 980px;
  font-size: clamp(2.2rem, 4.1vw, 4.4rem);
  line-height: 1.02;
}

.note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3.5vw, 48px);
  margin-top: 24px;
}

.note-grid article {
  padding-top: 14px;
  border-top: 1px solid var(--ink);
}

.note-grid h3 {
  font-size: clamp(1.4rem, 2vw, 2rem);
}

.note-ruler {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 18px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.note-ruler span {
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: var(--ink);
  background: var(--panel);
  font-size: 0.78rem;
  font-weight: 860;
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-transform: uppercase;
}

.note-ruler span::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--cyan);
}

.note-ruler span:nth-child(2)::before {
  background: var(--amber);
}

.note-ruler span:nth-child(3)::before {
  background: var(--red);
}

.note-sentences {
  display: grid;
  gap: 1px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  overflow: hidden;
}

.note-sentences p {
  position: relative;
  min-height: 60px;
  display: flex;
  align-items: center;
  margin: 0;
  padding: 14px 18px 14px 46px;
  color: #2c2d29;
  background: rgba(255, 255, 255, 0.82);
  font-size: clamp(1rem, 1.18vw, 1.1rem);
  font-weight: 720;
  line-height: 1.34;
}

.note-sentences p::before {
  content: "";
  position: absolute;
  left: 18px;
  width: 10px;
  height: 10px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--cyan);
}

.note-sentences p:nth-child(2)::before {
  background: var(--amber);
}

.note-sentences p:nth-child(3)::before {
  background: var(--red);
}

.note-sentences p:nth-child(4)::before {
  background: var(--green);
}

.chart-tooltip {
  position: fixed;
  z-index: 40;
  max-width: 280px;
  padding: 10px 12px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  color: var(--ink);
  background: rgba(247, 247, 242, 0.96);
  box-shadow: 4px 4px 0 var(--ink);
  font-size: 0.9rem;
  line-height: 1.35;
  white-space: pre-line;
  pointer-events: none;
  opacity: 0;
  transform: translate(12px, 12px);
  transition: opacity 120ms ease;
}

.takeaway {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding: clamp(48px, 6vw, 90px) clamp(22px, 5vw, 78px);
  color: var(--paper);
  background: var(--ink);
}

.takeaway .eyebrow {
  color: #a9aaa2;
}

.takeaway-copy {
  max-width: 560px;
}

.takeaway h2 {
  margin-bottom: 0;
  font-size: clamp(2.2rem, 3.8vw, 3.8rem);
  line-height: 1.02;
}

.takeaway-lede {
  max-width: 540px;
  margin: clamp(16px, 2vw, 24px) 0 0;
  color: #d7d7cf;
  font-size: clamp(1.1rem, 1.5vw, 1.42rem);
  font-weight: 720;
  line-height: 1.4;
}

.takeaway-figure {
  margin: 0;
  aspect-ratio: 4 / 3;
  max-height: min(72vh, 560px);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #3a3a37;
  border-radius: 16px;
  background: var(--panel);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

.takeaway-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

@media (max-width: 920px) {
  .takeaway {
    grid-template-columns: 1fr;
    min-height: auto;
  }
}

.story-spine {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, 1160px);
  margin: clamp(24px, 4vw, 42px) 0 0;
  border: 1px solid #74746d;
  border-radius: 8px;
  background: #74746d;
  overflow: hidden;
}

.story-spine div {
  min-height: 138px;
  padding: clamp(18px, 2.6vw, 30px);
  background: #151515;
}

.story-spine span {
  display: block;
  margin-bottom: 16px;
  color: #d7d7cf;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.story-spine strong {
  display: block;
  max-width: 330px;
  color: #ffffff;
  font-size: clamp(1.35rem, 2vw, 2.35rem);
  line-height: 1.05;
}

.takeaway-rule {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, 1160px);
  margin: clamp(28px, 5vw, 58px) 0;
  border: 1px solid var(--paper);
  border-radius: 8px;
  background: var(--paper);
  overflow: hidden;
}

.takeaway-rule div {
  min-height: 150px;
  padding: clamp(20px, 3vw, 32px);
  color: var(--ink);
  background: var(--paper);
}

.takeaway-rule span {
  display: block;
  margin-bottom: 18px;
  color: #64645f;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.takeaway-rule strong {
  display: block;
  max-width: 300px;
  font-size: clamp(1.5rem, 2.6vw, 2.8rem);
  line-height: 1.02;
}

.takeaway-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, 1160px);
  margin: 0 0 clamp(28px, 4vw, 46px);
  border: 1px solid #74746d;
  border-radius: 8px;
  background: #74746d;
  overflow: hidden;
}

.takeaway-proof div {
  position: relative;
  min-height: 134px;
  padding: clamp(16px, 2vw, 24px);
  background: #151515;
}

.takeaway-proof div::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--case-color, var(--cyan));
}

.takeaway-proof span,
.takeaway-proof small {
  display: block;
  color: #d7d7cf;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  line-height: 1;
  text-transform: uppercase;
}

.takeaway-proof span {
  margin-bottom: 16px;
}

.takeaway-proof strong {
  display: block;
  min-height: 58px;
  margin-bottom: 16px;
  color: #ffffff;
  font-size: clamp(1.05rem, 1.42vw, 1.42rem);
  font-weight: 900;
  line-height: 1.08;
}

.takeaway-proof small {
  color: #ffffff;
}

.takeaway-snapshot {
  width: min(100%, 1160px);
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) repeat(3, minmax(0, 0.72fr));
  gap: 1px;
  border: 1px solid #74746d;
  border-radius: 8px;
  background: #74746d;
  overflow: hidden;
}

.takeaway-snapshot > div {
  min-height: 118px;
  padding: clamp(16px, 2vw, 24px);
  color: var(--paper);
  background: #151515;
}

.takeaway-snapshot .snapshot-text {
  background:
    linear-gradient(90deg, rgba(255, 64, 87, 0.16), transparent 70%),
    #151515;
}

.takeaway-snapshot span {
  display: block;
  margin-bottom: 14px;
  color: #d7d7cf;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.takeaway-snapshot strong {
  display: block;
  max-width: 430px;
  color: #ffffff;
  font-size: clamp(1.15rem, 1.7vw, 1.85rem);
  line-height: 1.08;
}

.takeaway-snapshot mark {
  color: var(--paper);
  background: rgba(255, 64, 87, 0.42);
}

.site-footer {
  padding: 22px clamp(22px, 5vw, 78px);
  border-top: 1px solid var(--ink);
  background: var(--paper);
}

.site-footer p {
  max-width: 980px;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer a {
  color: var(--ink);
  font-weight: 800;
  text-underline-offset: 4px;
}

.site-footer code {
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

@keyframes hero-scan {
  0%,
  28% {
    transform: translateX(-100%);
  }

  54%,
  100% {
    transform: translateX(100%);
  }
}

@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 64, 87, 0.34);
  }

  100% {
    box-shadow: 0 0 0 22px rgba(255, 64, 87, 0);
  }
}

@keyframes evidence-pulse {
  0%,
  100% {
    transform: scaleY(0.88);
  }

  45% {
    transform: scaleY(1);
  }
}

@keyframes token-peak-pulse {
  0%,
  100% {
    box-shadow: inset 0 -2px 0 rgba(8, 8, 8, 0.72), 0 0 0 0 rgba(255, 64, 87, 0.18);
  }

  50% {
    box-shadow: inset 0 -2px 0 rgba(8, 8, 8, 0.72), 0 0 0 5px rgba(255, 64, 87, 0);
  }
}

@keyframes stage-scan {
  0% {
    opacity: 0;
    transform: translateX(-105%);
  }

  18% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateX(105%);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

@media (max-height: 780px) and (min-width: 1121px) {
  h1 {
    margin-bottom: 18px;
    font-size: clamp(3rem, 5.1vw, 5.05rem);
  }

  .hero {
    min-height: calc(100vh - 58px);
    gap: clamp(20px, 3.5vh, 36px);
    padding-top: 48px;
    padding-bottom: 24px;
  }

  .lede {
    max-width: 820px;
    font-size: 1.18rem;
    line-height: 1.34;
  }

  .sample-text {
    padding: 20px 28px;
  }

  .sample-text p {
    font-size: clamp(2rem, 3vw, 3rem);
  }

  .detector-strip {
    padding: 22px 28px;
  }

  .pulse-dot {
    width: 48px;
    height: 48px;
  }

  .pulse-dot::after {
    inset: 13px;
  }

  .detector-strip strong {
    font-size: 1.45rem;
  }

  .detector-strip p {
    font-size: 0.96rem;
  }

  .hero-checks div {
    min-height: 70px;
    padding: 14px 22px;
  }

  .hero-checks strong {
    font-size: 1.35rem;
  }

  .stage {
    padding: 8px 0;
  }

  .stage-top {
    margin-bottom: 7px;
  }

  .stage-top h2 {
    font-size: clamp(1.55rem, 2.25vw, 2.45rem);
  }

  #feature-meta {
    font-size: 0.84rem;
    line-height: 1.25;
  }

  #feature-link {
    margin-top: 4px;
    font-size: 0.86rem;
  }

  .verdict {
    margin-bottom: 8px;
    padding: 9px 12px;
    box-shadow: 3px 3px 0 var(--ink);
    font-size: 0.96rem;
  }

  .case-rail {
    margin-bottom: 8px;
  }

  .case-rail li {
    min-height: 25px;
    padding-top: 8px;
  }

  .case-rail b {
    font-size: 0.74rem;
  }

  .case-rail small,
  .case-rail span {
    display: none;
  }

  .evidence-grid {
    margin-bottom: 8px;
  }

  .evidence-grid > div {
    padding: 7px 9px;
  }

  .evidence-grid span {
    margin-bottom: 4px;
    font-size: 0.68rem;
  }

  .evidence-grid strong {
    margin-bottom: 4px;
    font-size: 0.9rem;
  }

  meter {
    height: 7px;
    margin-bottom: 5px;
  }

  .evidence-grid p {
    display: none;
  }

  .atlas-box > div,
  .feature-card {
    padding: 8px 10px;
  }

  .atlas-box h3,
  .feature-card h3 {
    font-size: 0.88rem;
    margin-bottom: 3px;
  }

  .atlas-box p {
    font-size: 0.8rem;
  }

  #atlas-canvas {
    min-height: 0;
  }

  .token-pills {
    gap: 4px;
    margin-bottom: 6px;
    max-height: 34px;
  }

  .token-pill {
    padding: 3px 6px;
    font-size: 0.74rem;
  }

  .token-pills .token-pill:nth-child(n + 5) {
    display: none;
  }

  .token-guide {
    margin-bottom: 4px;
    font-size: 0.72rem;
    line-height: 1.18;
  }

  .token-legend {
    display: none;
  }

  .activation-window {
    min-height: 76px;
    max-height: 120px;
    padding: 6px 10px;
    font-size: 0.9rem;
    line-height: 1.4;
  }

  .source-callout {
    grid-template-columns: 1fr;
    margin-bottom: 5px;
    padding: 7px 10px;
    gap: 3px;
  }

  .source-callout span {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: nowrap;
    border: 0;
    font-size: 0.64rem;
  }

  .source-callout strong {
    padding-left: 0;
    font-size: 0.94rem;
    line-height: 1.22;
  }

  .stage-insight {
    display: none;
  }

  .takeaway {
    min-height: calc(100vh - 58px);
    justify-content: start;
    padding-top: 38px;
    padding-bottom: 36px;
  }

  .takeaway h2 {
    max-width: 900px;
    margin-bottom: 0;
    font-size: clamp(2.55rem, 4.05vw, 3.6rem);
  }

  .story-spine {
    margin-top: 14px;
  }

  .story-spine div {
    min-height: 78px;
    padding: 16px 20px;
  }

  .story-spine span {
    margin-bottom: 8px;
  }

  .story-spine strong {
    font-size: clamp(1.08rem, 1.45vw, 1.45rem);
  }

  .takeaway-rule {
    margin: 14px 0 12px;
  }

  .takeaway-rule div {
    min-height: 80px;
    padding: 16px 20px;
  }

  .takeaway-rule span {
    margin-bottom: 8px;
  }

  .takeaway-rule strong {
    font-size: clamp(1.12rem, 1.5vw, 1.56rem);
  }

  .takeaway-proof {
    margin-bottom: 0;
  }

  .takeaway-proof div {
    min-height: 70px;
    padding: 10px 14px;
  }

  .takeaway-proof span {
    margin-bottom: 6px;
  }

  .takeaway-proof strong {
    min-height: auto;
    margin-bottom: 6px;
    font-size: clamp(0.88rem, 1.08vw, 1rem);
    line-height: 1.08;
  }

  .takeaway-proof small {
    font-size: 0.64rem;
  }

  .takeaway-snapshot > div {
    min-height: 72px;
    padding: 10px 14px;
  }

  .takeaway-snapshot span {
    margin-bottom: 6px;
    font-size: 0.64rem;
  }

  .takeaway-snapshot strong {
    font-size: clamp(0.9rem, 1.12vw, 1.05rem);
  }

  .takeaway p:not(.eyebrow) {
    font-size: 1.06rem;
    line-height: 1.26;
  }
}

@media (max-height: 700px) and (min-width: 1121px) {
  .takeaway {
    padding-top: 22px;
    padding-bottom: 24px;
  }

  .takeaway h2 {
    font-size: clamp(2.2rem, 3.45vw, 3.05rem);
  }

  .takeaway-lede {
    margin-top: 10px;
    font-size: 1rem;
    line-height: 1.22;
  }

  .story-spine {
    margin-top: 10px;
  }

  .story-spine div,
  .takeaway-rule div {
    min-height: 62px;
    padding: 11px 16px;
  }

  .story-spine span,
  .takeaway-rule span,
  .takeaway-proof span,
  .takeaway-snapshot span {
    margin-bottom: 5px;
  }

  .story-spine strong,
  .takeaway-rule strong {
    font-size: 1.02rem;
  }

  .takeaway-rule {
    margin: 10px 0 8px;
  }

  .takeaway-proof div {
    min-height: 54px;
    padding: 8px 12px;
  }

  .takeaway-proof strong {
    margin-bottom: 5px;
    font-size: 0.86rem;
  }

  .takeaway-snapshot > div {
    min-height: 56px;
    padding: 8px 12px;
  }

  .takeaway-snapshot strong {
    font-size: 0.9rem;
  }
}

@media (max-width: 1240px) and (min-width: 1121px) {
  .chapter-receipt {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: min(100%, 340px);
  }

  .chapter-receipt span,
  .chapter-receipt strong {
    min-height: 46px;
    padding: 0 9px;
  }

  .chapter-receipt span::before {
    top: 8px;
    right: 8px;
  }

  .chapter-receipt small {
    font-size: 0.62rem;
    letter-spacing: 0.03em;
  }

  .chapter-receipt strong {
    grid-column: 1 / -1;
    min-height: 44px;
  }
}

@media (max-width: 1120px) {
  .plain-terms,
  .reaction-board,
  .arc-grid,
  .scrolly,
  .stage-body,
  .pattern-grid,
  .reader-path,
  .data-scope,
  .finding-strip,
  .method-strip,
  .case-key,
  .pattern-focus,
  .test-steps,
  .story-spine,
  .takeaway-rule,
  .takeaway-proof,
  .takeaway-snapshot,
  .note-grid {
    grid-template-columns: 1fr;
  }

  .pattern-slide {
    min-height: auto;
    margin-bottom: 58px;
  }

  .case-key div {
    justify-content: flex-start;
  }

  #evidence-matrix {
    height: 340px;
  }

  .data-scope span {
    min-height: 40px;
    padding: 8px 12px;
    font-size: 0.9rem;
  }

  .pattern-focus span,
  .pattern-focus strong {
    min-height: 42px;
  }

  .pattern-focus strong {
    min-height: 76px;
  }

  .plain-terms {
    min-height: auto;
  }

  .story-arc {
    min-height: auto;
  }

  .arc-grid article {
    min-height: 150px;
  }

  .stage {
    position: relative;
    top: auto;
    scroll-margin-top: 104px;
    height: auto;
    max-height: none;
    min-height: auto;
    overflow: hidden;
    padding-bottom: 60px;
  }

  .mobile-stage-note {
    display: block;
    margin: 0 0 18px;
    padding: 14px 16px;
    border: 1px solid var(--ink);
    border-radius: 8px;
    color: var(--paper);
    background: var(--ink);
    font-size: clamp(1rem, 3.8vw, 1.22rem);
    font-weight: 850;
    line-height: 1.24;
  }

  .stage-body {
    overflow: visible;
  }

  .case-rail {
    margin-bottom: 16px;
  }

  .atlas-box,
  .feature-card {
    height: auto;
  }

  #atlas-canvas {
    height: min(440px, 56vw);
    min-height: 300px;
  }

  .stage::before {
    display: none;
  }

  .chapters {
    padding-bottom: 0;
  }

  .chapter {
    min-height: auto;
    padding: 70px 0 78px;
    opacity: 1;
  }

  .chapter-receipt {
    display: none;
  }

  .mobile-evidence {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    width: min(100%, 560px);
    margin-top: 18px;
    border: 1px solid var(--ink);
    border-radius: 8px;
    background: var(--ink);
    overflow: hidden;
  }

  .mobile-evidence div,
  .mobile-evidence p {
    margin: 0;
    background: var(--panel);
  }

  .mobile-evidence div {
    min-height: 92px;
    padding: 14px 15px;
  }

  .mobile-evidence span {
    display: block;
    margin-bottom: 9px;
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    line-height: 1;
    text-transform: uppercase;
  }

  .mobile-evidence strong {
    display: block;
    color: var(--ink);
    font-size: clamp(1rem, 2.8vw, 1.25rem);
    line-height: 1.12;
  }

  .chapter .mobile-evidence p {
    grid-column: 1 / -1;
    max-width: none;
    padding: 13px 15px;
    color: #ffffff;
    background: var(--ink);
    font-size: 1rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    line-height: 1.18;
    text-transform: uppercase;
  }
}

@media (max-width: 720px) {
  #top,
  #story,
  #test,
  #project-note,
  #takeaway,
  #patterns {
    scroll-margin-top: 108px;
  }

  #case-url,
  #case-python,
  #case-cat,
  #case-star-wars {
    scroll-margin-top: 98px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .site-header nav {
    width: 100%;
    justify-content: space-between;
  }

  h1 {
    font-size: clamp(2.3rem, 10.6vw, 3.45rem);
    line-height: 0.98;
  }

  .hero {
    scroll-margin-top: 108px;
    min-height: calc(100svh - 58px);
    gap: clamp(20px, 4vh, 34px);
    padding-top: 34px;
  }

  .lede {
    font-size: clamp(1.08rem, 4.8vw, 1.22rem);
    line-height: 1.34;
  }

  .hero-demo,
  .hero-checks {
    grid-template-columns: 1fr;
  }

  .test-steps article {
    min-height: auto;
  }

  .sample-text p {
    font-size: clamp(1.75rem, 8.8vw, 2.45rem);
  }

  .sample-text,
  .detector-strip {
    padding: 18px 20px;
  }

  .detector-strip {
    align-items: flex-start;
  }

  .hero-checks div {
    min-height: auto;
  }

  .plain-terms {
    padding-top: 64px;
    padding-bottom: 72px;
  }

  .reaction-input,
  .reaction-core,
  .reaction-label {
    min-height: auto;
  }

  .reaction-checks {
    grid-template-columns: 1fr;
  }

  .reaction-checks > div {
    min-height: auto;
  }

  .story-arc {
    padding-top: 64px;
    padding-bottom: 72px;
  }

  .arc-grid article {
    min-height: 140px;
  }

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

  .note-ruler {
    grid-template-columns: 1fr;
  }

  .project-note {
    padding-top: 56px;
    padding-bottom: 64px;
  }

  .project-note h2 {
    font-size: clamp(2rem, 10vw, 3.2rem);
  }

  .note-sentences p {
    min-height: auto;
    padding: 14px 16px 14px 42px;
    font-size: 1rem;
  }

  .takeaway-snapshot > div {
    min-height: auto;
    padding: 14px 16px;
  }

  .takeaway-snapshot span {
    margin-bottom: 8px;
  }

  .case-rail {
    gap: 5px;
  }

  .case-rail li {
    min-height: 42px;
    padding-top: 9px;
  }

  .case-rail span {
    display: none;
  }

  .case-rail b {
    margin-right: 0;
    font-size: 0.72rem;
  }

  .case-rail small {
    font-size: 0.58rem;
    letter-spacing: 0.02em;
    line-height: 1.05;
  }

  .mobile-evidence {
    grid-template-columns: 1fr;
  }

  .mobile-evidence div {
    min-height: auto;
  }

  #atlas-canvas,
  #heatmap,
  #density-histogram {
    height: 430px;
  }

  #agreement-strip {
    height: 220px;
  }

  .axis text {
    font-size: 12px;
  }

  .chart-reading span {
    flex: 1 1 100%;
    align-items: flex-start;
  }

  .agreement-takeaway {
    grid-template-columns: 82px minmax(0, 1fr);
  }

  .agreement-takeaway span,
  .agreement-takeaway strong,
  .agreement-takeaway p {
    min-height: 42px;
    padding: 8px 10px;
  }

  .agreement-takeaway strong {
    font-size: 0.98rem;
  }

  .agreement-takeaway p {
    grid-column: 1 / -1;
    min-height: 34px;
    font-size: 0.82rem;
  }

  .activation-window {
    max-height: none;
  }
}