:root {
  --ink: #0b1012;
  --ink-soft: #111719;
  --ink-raised: #161d20;
  --paper: #f1efe7;
  --paper-deep: #dedbd1;
  --white: #fbfaf5;
  --muted: #aab2ae;
  --muted-dark: #5c6662;
  --muted-meta: #7b8581;
  --line: rgba(242, 242, 234, .14);
  --line-strong: rgba(242, 242, 234, .27);
  --terminal: #f34b9d;
  --terminal-soft: #bb2f78;
  --cyber: #63d7e3;
  --cyber-soft: #1d91aa;
  --signal: #f2c85b;
  --display: "Newsreader", Iowan Old Style, Baskerville, Georgia, serif;
  --sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --gutter: clamp(1.25rem, 5vw, 5.75rem);
  --content: 1480px;
}

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

html {
  scroll-behavior: smooth;
  background: var(--ink);
  color-scheme: dark;
  overflow-x: clip;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--white);
  font-family: var(--sans);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: .32;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 74%);
}

a { color: inherit; }

button, input { font: inherit; }

button { color: inherit; }

svg { display: block; }

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

.skip-link {
  position: fixed;
  left: 1rem;
  top: .75rem;
  z-index: 1000;
  transform: translateY(-180%);
  padding: .7rem 1rem;
  background: var(--white);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  transition: transform .2s ease;
}

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

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

[hidden] { display: none !important; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 76px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  padding: .8rem var(--gutter);
  border-bottom: 1px solid var(--line);
  background: rgba(11, 16, 18, .9);
  backdrop-filter: blur(18px);
}

.brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  text-decoration: none;
}

.brand img { flex: 0 0 auto; }

.brand__words {
  display: grid;
  gap: .06rem;
  font-size: .82rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: .015em;
}

.brand__words span:last-child {
  color: var(--muted);
  font-weight: 500;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  position: relative;
  color: #d4d8d5;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .075em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -.45rem;
  height: 1px;
  background: var(--signal);
  transition: right .2s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after { right: 0; }

.edition {
  justify-self: end;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .69rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  isolation: isolate;
  max-width: var(--content);
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 8rem) var(--gutter) 0;
}

.hero__wash {
  position: absolute;
  z-index: -1;
  width: min(58vw, 870px);
  aspect-ratio: 1;
  right: -12%;
  top: -18%;
  border-radius: 50%;
  opacity: .2;
  filter: blur(4px);
  background:
    radial-gradient(circle at 42% 42%, rgba(99, 215, 227, .28), transparent 34%),
    radial-gradient(circle at 62% 59%, rgba(243, 75, 157, .3), transparent 32%);
  mask-image: radial-gradient(circle, black, transparent 68%);
}

.hero__content {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, .75fr);
  gap: clamp(3rem, 8vw, 8.5rem);
  align-items: end;
}

.hero__copy { max-width: 790px; }

.eyebrow,
.section-index {
  margin: 0 0 1.35rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .69rem;
  font-weight: 500;
  letter-spacing: .11em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow { display: flex; align-items: center; gap: .75rem; }

.eyebrow > span {
  width: 2.5rem;
  height: 1px;
  background: var(--signal);
}

.hero h1 {
  max-width: 10ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(4.1rem, 8vw, 8.4rem);
  font-weight: 400;
  letter-spacing: -.055em;
  line-height: .82;
}

.hero h1 em {
  position: relative;
  color: var(--paper);
  font-weight: 400;
  text-decoration: none;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  left: .03em;
  right: -.04em;
  bottom: .08em;
  z-index: -1;
  height: .12em;
  background: linear-gradient(90deg, var(--terminal), var(--cyber));
}

.hero__lede {
  max-width: 630px;
  margin: 2.75rem 0 0;
  color: #e1e3de;
  font-family: var(--display);
  font-size: clamp(1.42rem, 2.4vw, 2rem);
  letter-spacing: -.018em;
  line-height: 1.34;
}

.hero__purpose {
  max-width: 620px;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: clamp(.98rem, 1.2vw, 1.08rem);
  line-height: 1.68;
}

.hero__purpose strong { color: var(--white); font-weight: 600; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  margin-top: 0;
  padding: .85rem 1.1rem .85rem 1.35rem;
  border: 1px solid transparent;
  font-size: .83rem;
  font-weight: 700;
  letter-spacing: .025em;
  text-decoration: none;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}

.button svg,
.study-card__action svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .2s ease;
}

.button--primary { background: var(--paper); color: var(--ink); }

.button--secondary {
  border-color: var(--line-strong);
  background: rgba(255,255,255,.02);
  color: var(--paper);
}

.button--primary:hover,
.button--primary:focus-visible { background: var(--signal); transform: translateY(-2px); }

.button--secondary:hover,
.button--secondary:focus-visible {
  border-color: var(--paper);
  background: rgba(255,255,255,.07);
  transform: translateY(-2px);
}

.button:hover svg,
.button:focus-visible svg,
.study-card__link:hover .study-card__action svg,
.study-card__link:focus-visible .study-card__action svg { transform: translateX(4px); }

.definition-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 3.2vw, 2.8rem);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 32px 90px rgba(0,0,0,.28);
}

.definition-card__topline {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  height: 5px;
}

.definition-card__topline span:nth-child(1) { background: var(--terminal); }
.definition-card__topline span:nth-child(2) { background: var(--signal); }
.definition-card__topline span:nth-child(3) { background: var(--cyber); }

.definition-card__label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 2.6rem;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: .64rem;
  font-weight: 600;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.definition-card h2 {
  max-width: 12ch;
  margin: 0 0 1.15rem;
  font-family: var(--display);
  font-size: clamp(2.2rem, 4vw, 3.65rem);
  font-weight: 400;
  letter-spacing: -.04em;
  line-height: .98;
}

.definition-card__definition {
  margin: 0;
  color: #263033;
  font-size: 1rem;
  line-height: 1.58;
}

.intelligence-path {
  margin: 2.2rem 0 0;
  padding: 0;
  border-top: 1px solid rgba(11,16,18,.18);
  list-style: none;
}

.intelligence-path li {
  position: relative;
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: .8rem;
  align-items: center;
  min-height: 58px;
  border-bottom: 1px solid rgba(11,16,18,.18);
}

.intelligence-path li::after {
  content: "";
  position: absolute;
  left: .2rem;
  bottom: -1px;
  width: 0;
  height: 1px;
  background: var(--terminal);
  transition: width .35s ease;
}

.definition-card:hover .intelligence-path li::after { width: calc(100% - .2rem); }
.definition-card:hover .intelligence-path li:nth-child(2)::after { transition-delay: .06s; background: #d67d79; }
.definition-card:hover .intelligence-path li:nth-child(3)::after { transition-delay: .12s; background: #9aa48d; }
.definition-card:hover .intelligence-path li:nth-child(4)::after { transition-delay: .18s; background: var(--cyber-soft); }

.intelligence-path__number {
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: .61rem;
}

.intelligence-path li > span:last-child {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.intelligence-path strong { font-size: .86rem; }
.intelligence-path small { color: var(--muted-dark); font-size: .74rem; }

.definition-card__note {
  margin: 1.7rem 0 0;
  color: var(--muted-dark);
  font-family: var(--display);
  font-size: 1.08rem;
  font-style: italic;
  line-height: 1.4;
}

.archive-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: clamp(4rem, 8vw, 7.5rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.archive-strip > div {
  display: flex;
  min-height: 106px;
  flex-direction: column-reverse;
  justify-content: center;
  gap: .5rem;
  padding: 1.25rem clamp(1rem, 2.2vw, 2rem);
  border-left: 1px solid var(--line);
}

.archive-strip > div:first-child { border-left: 0; padding-left: 0; }

.archive-strip dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: .61rem;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.archive-strip dd {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin: 0;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.2vw, 2.05rem);
  letter-spacing: -.025em;
}

.status-dot {
  width: .48rem;
  height: .48rem;
  border-radius: 50%;
  background: #93df72;
  box-shadow: 0 0 0 .28rem rgba(147, 223, 114, .1);
}

.explainers {
  position: relative;
  max-width: var(--content);
  margin: 0 auto;
  padding: clamp(6rem, 10vw, 10rem) var(--gutter);
  border-bottom: 1px solid var(--line);
}

.explainers::before {
  content: "";
  position: absolute;
  inset: 0 var(--gutter) auto;
  height: 1px;
  background: linear-gradient(90deg, var(--terminal), var(--signal) 50%, var(--cyber));
  opacity: .72;
}

.section-heading--explainers h2 { max-width: 11ch; }

.explainer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
  margin-top: clamp(3.5rem, 6vw, 5rem);
}

.explainer-card { min-width: 0; }

.explainer-card__link {
  position: relative;
  display: grid;
  height: 100%;
  min-height: 620px;
  grid-template-rows: minmax(132px, .38fr) 1fr;
  overflow: hidden;
  border: 1px solid transparent;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  box-shadow: 0 24px 70px rgba(0,0,0,.2);
  transition: transform .3s cubic-bezier(.2,.8,.2,1), border-color .3s ease, box-shadow .3s ease;
}

.explainer-card__link::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 1px solid transparent;
  transition: border-color .3s ease;
}

.explainer-card__link:hover,
.explainer-card__link:focus-visible {
  z-index: 2;
  transform: translateY(-6px);
  outline: none;
  box-shadow: 0 34px 90px rgba(0,0,0,.34);
}

.explainer-card--terminal .explainer-card__link:hover::after,
.explainer-card--terminal .explainer-card__link:focus-visible::after { border-color: var(--terminal); }

.explainer-card--cyber .explainer-card__link:hover::after,
.explainer-card--cyber .explainer-card__link:focus-visible::after { border-color: var(--cyber-soft); }

.explainer-card__number {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  overflow: hidden;
  padding: .7rem clamp(1.45rem, 3vw, 2.2rem) 0;
  border-bottom: 1px solid rgba(11,16,18,.18);
  color: rgba(11,16,18,.17);
  font-family: var(--display);
  font-size: clamp(6.8rem, 10vw, 11rem);
  letter-spacing: -.08em;
  line-height: .62;
}

.explainer-card__number::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .36;
  background-image:
    linear-gradient(rgba(11,16,18,.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11,16,18,.14) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(90deg, black, transparent 72%);
}

.explainer-card--terminal .explainer-card__number {
  background: linear-gradient(118deg, rgba(243,75,157,.24), transparent 58%), #e8e4dc;
}

.explainer-card--cyber .explainer-card__number {
  background: linear-gradient(118deg, rgba(29,145,170,.28), transparent 58%), #e8e4dc;
}

.explainer-card__content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(1.45rem, 3vw, 2.2rem);
}

.explainer-card__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .75rem;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: .61rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.explainer-card--terminal .explainer-card__meta span:first-child { color: #8f225d; }
.explainer-card--cyber .explainer-card__meta span:first-child { color: #146f84; }

.explainer-card h3 {
  max-width: 12ch;
  margin: 1.8rem 0 0;
  font-family: var(--display);
  font-size: clamp(2.8rem, 4.5vw, 5rem);
  font-weight: 400;
  letter-spacing: -.052em;
  line-height: .91;
}

.explainer-card__content > p {
  max-width: 58ch;
  margin: 1.35rem 0 0;
  color: #3f4947;
  font-family: var(--display);
  font-size: 1.12rem;
  line-height: 1.48;
}

.explainer-card__credit {
  display: grid;
  gap: .24rem;
  margin-top: 1.25rem;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-style: normal;
  line-height: 1.5;
}

.explainer-card__byline {
  color: #313a38;
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .035em;
  text-transform: uppercase;
}

.explainer-card__assistance {
  color: var(--muted-dark);
  font-size: .57rem;
  letter-spacing: .02em;
}

.explainer-card__topics {
  display: flex;
  flex-wrap: wrap;
  gap: .42rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.explainer-card__topics li {
  padding: .38rem .55rem;
  border: 1px solid rgba(11,16,18,.2);
  color: #4f5956;
  font-family: var(--mono);
  font-size: .57rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.explainer-card__action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  margin-top: auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(11,16,18,.18);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .025em;
}

.explainer-card__action svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .2s ease;
}

.explainer-card__link:hover .explainer-card__action svg,
.explainer-card__link:focus-visible .explainer-card__action svg { transform: translateX(4px); }

.library {
  max-width: var(--content);
  margin: 0 auto;
  padding: clamp(6rem, 10vw, 10rem) var(--gutter);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, .65fr);
  gap: clamp(2rem, 8vw, 8rem);
  align-items: end;
}

.section-index span { color: var(--muted-meta); }

.section-heading h2,
.reading-notes h2 {
  max-width: 13ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3rem, 6vw, 6.3rem);
  font-weight: 400;
  letter-spacing: -.05em;
  line-height: .93;
}

.section-heading > p {
  max-width: 520px;
  margin: 0 0 .55rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.library-tools {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto auto;
  gap: 1rem;
  align-items: center;
  margin: clamp(3.5rem, 6vw, 5rem) 0 1.4rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.025);
}

.search-field {
  display: flex;
  align-items: center;
  gap: .75rem;
  min-height: 46px;
  padding: 0 .9rem;
  border: 1px solid var(--line);
  background: var(--ink);
}

.search-field:focus-within { border-color: var(--line-strong); outline: 2px solid rgba(242, 200, 91, .26); }

.search-field svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.search-field input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--white);
  font-size: .83rem;
}

.search-field input::placeholder { color: #77807c; }

.filter-group { display: flex; flex-wrap: wrap; gap: .45rem; }

.filter {
  min-height: 42px;
  padding: .55rem .75rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: border-color .18s ease, background .18s ease, color .18s ease;
}

.filter span {
  margin-left: .35rem;
  color: var(--muted-meta);
  font-family: var(--mono);
  font-size: .58rem;
}

.filter:hover { border-color: var(--line-strong); color: var(--white); }

.filter.is-active {
  border-color: var(--paper);
  background: var(--paper);
  color: var(--ink);
}

.filter.is-active span { color: var(--muted-dark); }

.result-count {
  min-width: 5.5rem;
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .65rem;
  text-align: right;
  text-transform: uppercase;
}

.study-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}

.study-card {
  min-width: 0;
  animation: card-in .55s both ease-out;
}

.study-card:nth-child(2) { animation-delay: .08s; }

@keyframes card-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.study-card__link {
  position: relative;
  display: flex;
  height: 100%;
  min-height: 940px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-soft);
  text-decoration: none;
  box-shadow: 0 20px 60px rgba(0,0,0,.12);
  transition: transform .3s cubic-bezier(.2,.8,.2,1), border-color .3s ease, box-shadow .3s ease;
}

.study-card__link::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 1px solid transparent;
  transition: border-color .3s ease;
}

.study-card__link:hover,
.study-card__link:focus-visible {
  z-index: 2;
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: 0 30px 80px rgba(0,0,0,.3);
  outline: none;
}

.study-card--terminal .study-card__link:hover::after,
.study-card--terminal .study-card__link:focus-visible::after { border-color: rgba(243,75,157,.35); }

.study-card--cyber .study-card__link:hover::after,
.study-card--cyber .study-card__link:focus-visible::after { border-color: rgba(99,215,227,.35); }

.study-card__visual {
  position: relative;
  min-height: 312px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.study-card--terminal .study-card__visual {
  background:
    radial-gradient(circle at 50% 44%, rgba(243,75,157,.16), transparent 32%),
    linear-gradient(145deg, #17101a, #101416 60%);
}

.study-card--cyber .study-card__visual {
  background:
    radial-gradient(circle at 50% 48%, rgba(99,215,227,.15), transparent 34%),
    linear-gradient(145deg, #0b1b23, #101416 62%);
}

.study-card__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .26;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.study-card__visual-header {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  padding: 1.2rem 1.35rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.study-card__visual > svg {
  position: absolute;
  inset: 2.6rem 0 auto;
  width: 100%;
  height: 250px;
}

.map-lines {
  fill: none;
  stroke: rgba(242,242,234,.25);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.map-node circle {
  fill: var(--ink-raised);
  stroke: rgba(242,242,234,.42);
  stroke-width: 1;
}

.map-node text {
  fill: var(--paper);
  font-family: var(--mono);
  text-anchor: middle;
}

.map-node--small text { font-size: 10px; }

.map-node--core circle { stroke-width: 1.5; }
.study-card--terminal .map-node--core circle { fill: rgba(66,19,49,.8); stroke: var(--terminal); }
.study-card--cyber .map-node--core circle { fill: rgba(12,54,66,.88); stroke: var(--cyber); }
.map-node--core text { font-size: 11px; font-weight: 600; letter-spacing: .12em; }

.study-card--terminal .map-node--small:nth-of-type(odd) circle { stroke: rgba(243,75,157,.7); }

.cyber-map ellipse { fill: none; stroke: rgba(99,215,227,.2); stroke-width: 1; }
.cyber-node circle { fill: #142a30; stroke: var(--cyber); stroke-width: 1.4; }

.study-card__link:hover .map-lines { stroke: rgba(242,242,234,.4); }
.study-card__link:hover .map-node--small circle,
.study-card__link:hover .cyber-node circle { animation: node-pulse 1.6s ease-in-out infinite alternate; }

.study-card__link:hover .map-node--small:nth-child(3),
.study-card__link:hover .cyber-node circle:nth-child(3n) { animation-delay: .15s; }

@keyframes node-pulse { to { filter: drop-shadow(0 0 5px currentColor); } }

.visual-caption {
  position: absolute;
  left: 1.35rem;
  right: 1.35rem;
  bottom: 1.1rem;
  color: #8f9995;
  font-family: var(--mono);
  font-size: .56rem;
  letter-spacing: .08em;
  line-height: 1.5;
  text-align: center;
  text-transform: uppercase;
}

.study-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: clamp(1.45rem, 3vw, 2.2rem);
}

.study-card__category {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-bottom: 1.6rem;
}

.study-card__category span {
  padding: .38rem .55rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: .57rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.study-card--terminal .study-card__category span:first-child { border-color: rgba(243,75,157,.42); color: #fb9ac8; }
.study-card--cyber .study-card__category span:first-child { border-color: rgba(99,215,227,.42); color: #9aebf1; }

.study-card h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.55rem, 4.4vw, 4.8rem);
  font-weight: 400;
  letter-spacing: -.048em;
  line-height: .94;
}

.study-card h3 span { display: block; color: #b8c0bc; font-size: .56em; line-height: 1.02; }

.study-card__subtitle {
  margin: 1rem 0 0;
  color: #d8ddd9;
  font-family: var(--display);
  font-size: 1.08rem;
  font-style: italic;
  line-height: 1.4;
}

.study-card__abstract {
  margin: 1.6rem 0 0;
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.72;
}

.study-details {
  margin: 2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.study-details > div {
  display: grid;
  grid-template-columns: 6.2rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.study-details dt {
  color: var(--muted-meta);
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.study-details dd {
  margin: 0;
  color: #cbd0cd;
  font-size: .78rem;
  line-height: 1.55;
}

.keyword-list { display: flex; flex-wrap: wrap; gap: .34rem .7rem; }

.keyword-list span::before {
  content: "#";
  margin-right: .08rem;
  color: #69736f;
}

.study-card__footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: end;
  margin-top: auto;
  padding-top: 2.1rem;
}

.study-author {
  min-width: 0;
  color: #d6dad7;
  font-size: .76rem;
  line-height: 1.35;
}

.study-author small {
  display: block;
  margin-bottom: .28rem;
  color: var(--muted-meta);
  font-family: var(--mono);
  font-size: .54rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.access-label {
  display: inline-flex;
  align-items: center;
  gap: .42rem;
  color: #9aebf1;
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.access-label svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.access-label--locked { color: #fb9ac8; }

.study-card__action {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  margin-top: .25rem;
  padding: .7rem 1rem;
  border: 1px solid var(--line-strong);
  color: var(--paper);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .025em;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.study-card--terminal .study-card__link:hover .study-card__action,
.study-card--terminal .study-card__link:focus-visible .study-card__action { background: var(--terminal); border-color: var(--terminal); color: #170711; }

.study-card--cyber .study-card__link:hover .study-card__action,
.study-card--cyber .study-card__link:focus-visible .study-card__action { background: var(--cyber); border-color: var(--cyber); color: #061417; }

.empty-state {
  padding: 5rem 1rem;
  border: 1px solid var(--line);
  text-align: center;
}

.empty-state h3 {
  margin: 0 0 1.5rem;
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 400;
}

.empty-state button {
  min-height: 44px;
  padding: .65rem 1rem;
  border: 1px solid var(--line-strong);
  background: transparent;
  cursor: pointer;
}

.empty-state button:hover { background: var(--paper); color: var(--ink); }

.reading-notes {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(460px, 1fr);
  gap: clamp(3rem, 10vw, 10rem);
  max-width: var(--content);
  margin: 0 auto;
  padding: clamp(5rem, 9vw, 9rem) var(--gutter);
  border-top: 1px solid var(--line);
}

.reading-notes__intro { position: sticky; top: 120px; align-self: start; }
.reading-notes h2 { max-width: 8ch; font-size: clamp(3rem, 5vw, 5.2rem); }

.reading-notes ol { margin: 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }

.reading-notes li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 2.2rem 0 2.4rem;
  border-bottom: 1px solid var(--line-strong);
}

.reading-notes li > span {
  color: var(--signal);
  font-family: var(--mono);
  font-size: .65rem;
}

.reading-notes h3 {
  margin: -.2rem 0 .65rem;
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-weight: 400;
  letter-spacing: -.03em;
}

.reading-notes li p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.68;
}

.closing-statement {
  display: flex;
  min-height: 470px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 5rem var(--gutter);
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 100%, rgba(99,215,227,.12), transparent 35%),
    radial-gradient(circle at 35% 100%, rgba(243,75,157,.1), transparent 30%),
    var(--ink-soft);
  text-align: center;
}

.closing-statement p {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.5rem, 7vw, 7rem);
  letter-spacing: -.055em;
  line-height: .88;
}

.closing-statement em { color: var(--signal); font-weight: 400; }

.closing-statement a {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}

.closing-statement a span { color: var(--signal); font-size: 1rem; }

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: center;
  min-height: 108px;
  padding: 1.4rem var(--gutter);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: .59rem;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.site-footer > div { display: flex; align-items: center; gap: .75rem; color: #dce0dc; }
.site-footer p { margin: 0; }
.site-footer p:nth-child(2) { text-align: center; }
.site-footer p:last-child { justify-self: end; text-align: right; }

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

@media (max-width: 1180px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-nav { display: none; }
  .hero__content { grid-template-columns: minmax(0, 1fr) minmax(330px, .72fr); gap: 3.5rem; }
  .library-tools { grid-template-columns: 1fr; }
  .result-count { text-align: left; }
  .study-card__link { min-height: 1010px; }
  .study-details > div { grid-template-columns: 1fr; gap: .45rem; }
}

@media (max-width: 900px) {
  .hero__content,
  .section-heading,
  .reading-notes { grid-template-columns: 1fr; }

  .hero__content { gap: 4rem; }
  .hero h1 { font-size: clamp(4rem, 13vw, 7rem); }
  .definition-card { max-width: 650px; }
  .archive-strip { grid-template-columns: repeat(2, 1fr); }
  .archive-strip > div:nth-child(3) { border-left: 0; }
  .archive-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .explainer-grid { grid-template-columns: 1fr; }
  .explainer-card__link { min-height: 0; }
  .explainer-card__content { min-height: 430px; }
  .study-grid { grid-template-columns: 1fr; }
  .study-card__link { min-height: 0; }
  .study-card__visual { min-height: 340px; }
  .study-card__body { min-height: 620px; }
  .reading-notes { gap: 4rem; }
  .reading-notes__intro { position: static; }
  .reading-notes h2 { max-width: 11ch; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .site-footer p:nth-child(2) { display: none; }
}

@media (max-width: 620px) {
  .site-header { min-height: 66px; gap: 1rem; }
  .brand img { width: 36px; height: 36px; }
  .brand__words { font-size: .72rem; }
  .edition { font-size: .56rem; }

  .hero { padding-top: 4.5rem; }
  .hero__wash { right: 0; width: 82vw; }
  .hero h1 { font-size: clamp(3.2rem, 15vw, 4.6rem); line-height: .84; }
  .hero__lede { margin-top: 2.1rem; }
  .hero__actions { align-items: stretch; flex-direction: column; }
  .hero__actions .button { width: 100%; }
  .definition-card__label { margin-bottom: 2rem; }
  .intelligence-path li > span:last-child { align-items: flex-start; flex-direction: column; gap: .1rem; }

  .archive-strip { margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); }
  .archive-strip > div { min-height: 90px; padding-left: var(--gutter); }
  .archive-strip > div:first-child { padding-left: var(--gutter); }
  .archive-strip dd { font-size: 1.35rem; }

  .section-heading h2 { font-size: clamp(3rem, 14vw, 4.6rem); }
  .explainer-grid { margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); gap: 1rem; }
  .explainer-card__link { border-left: 0; border-right: 0; }
  .explainer-card__number { min-height: 118px; padding-left: var(--gutter); padding-right: var(--gutter); }
  .explainer-card__content { min-height: 0; padding: 1.5rem var(--gutter) 1.7rem; }
  .explainer-card h3 { font-size: clamp(2.65rem, 13vw, 4rem); }
  .explainer-card__content > p { font-size: 1.03rem; }
  .explainer-card__action { margin-top: 2.4rem; }
  .library-tools { margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); border-left: 0; border-right: 0; }
  .filter-group { display: grid; grid-template-columns: 1fr 1fr; }
  .filter:first-child { grid-column: 1 / -1; }
  .filter { text-align: left; }

  .study-grid { margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); gap: 1rem; }
  .study-card__link { border-left: 0; border-right: 0; }
  .study-card__visual { min-height: 275px; }
  .study-card__visual > svg { top: 2.1rem; height: 220px; transform: scale(1.13); }
  .study-card__body { min-height: 0; padding: 1.5rem var(--gutter) 1.7rem; }
  .study-card h3 { font-size: clamp(2.65rem, 13vw, 4rem); }
  .study-card__abstract { font-size: .89rem; }
  .study-card__footer { grid-template-columns: 1fr; align-items: start; }
  .access-label { justify-self: start; }
  .study-card__action { grid-column: 1; margin-top: .6rem; }

  .reading-notes li { grid-template-columns: 2.2rem 1fr; }
  .closing-statement { min-height: 390px; }
  .closing-statement p { font-size: clamp(3rem, 15vw, 4.8rem); }

  .site-footer { grid-template-columns: 1fr; gap: 1.2rem; padding-top: 2rem; padding-bottom: 2rem; }
  .site-footer p:last-child { justify-self: start; text-align: left; }
}

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

@media print {
  .site-header, .library-tools, .closing-statement, .site-footer { display: none; }
  body { background: #fff; color: #111; }
  body::before, .hero__wash { display: none; }
  .hero, .explainers, .library, .reading-notes { max-width: none; padding: 2rem; }
  .hero__content, .section-heading, .reading-notes { grid-template-columns: 1fr; }
  .definition-card { box-shadow: none; border: 1px solid #bbb; }
  .archive-strip, .reading-notes, .study-card__link { break-inside: avoid; }
  .study-grid { grid-template-columns: 1fr; }
  .explainer-card__link { min-height: 0; box-shadow: none; }
  .study-card__link { min-height: 0; background: #fff; color: #111; border: 1px solid #aaa; }
  .study-card__abstract, .study-details dd, .study-card__subtitle, .study-author { color: #333; }
}