:root {
  --paper: #f2f0e8;
  --sheet: #fffef8;
  --ink: #171714;
  --muted: #67665f;
  --hair: #c9c5b7;
  --blue: #2343e8;
  --red: #ed5b3d;
  --acid: #c8ff32;
  --mint: #5ed5ab;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(23, 23, 20, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 23, 20, .035) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
  font: 15px/1.55 Arial, Helvetica, sans-serif;
}

a {
  color: inherit;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--acid);
  font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
  text-decoration: none;
}

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

.site-nav {
  min-height: 62px;
  padding: 0 3.2vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  color: #fff;
  background: var(--ink);
  border-bottom: 5px solid var(--acid);
}

.brand {
  text-decoration: none;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.045em;
}

.brand span {
  margin-left: 11px;
  color: var(--acid);
  font: 600 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.site-nav nav {
  display: flex;
  align-items: center;
  gap: 21px;
}

.site-nav nav a {
  color: #c6c6bf;
  text-decoration: none;
  font: 700 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

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

.site-nav .score-link {
  padding: 10px 13px;
  color: var(--ink);
  background: var(--acid);
}

.hero,
.section,
.evidence,
.architecture,
.boundary {
  max-width: 1500px;
  margin: auto;
  padding-left: 3.2vw;
  padding-right: 3.2vw;
}

.hero {
  min-height: 670px;
  padding-top: 74px;
  padding-bottom: 54px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, .6fr);
  gap: 7vw;
  align-items: center;
}

.eyebrow,
.section-index,
.proof-label {
  margin: 0 0 17px;
  color: var(--blue);
  font: 800 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
.quote {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(60px, 8.2vw, 128px);
  line-height: .8;
  letter-spacing: -.075em;
}

h1 em {
  position: relative;
  z-index: 0;
}

h1 em::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -.03em;
  right: -.08em;
  bottom: .04em;
  height: .24em;
  background: var(--acid);
  transform: rotate(-1deg);
}

.hero-copy {
  max-width: 670px;
  margin: 34px 0 0;
  font: 20px/1.45 Georgia, "Times New Roman", serif;
}

.actions {
  margin-top: 30px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  min-height: 48px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--ink);
  color: #fff;
  background: var(--ink);
  text-decoration: none;
  font: 800 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.button.primary {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 6px 6px 0 var(--acid);
}

.button.ghost {
  color: var(--ink);
  background: transparent;
}

.button:hover {
  color: var(--ink);
  background: var(--acid);
  border-color: var(--ink);
}

.cover-note {
  position: relative;
  padding: 28px;
  color: #fff;
  background: var(--ink);
  transform: rotate(1.2deg);
  box-shadow: 16px 16px 0 var(--red);
}

.cover-note::before {
  content: "SCORE 01";
  position: absolute;
  right: 20px;
  top: 18px;
  color: var(--acid);
  font: 800 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .12em;
}

.cover-note .quote {
  margin: 38px 0 38px;
  font-size: clamp(31px, 3.5vw, 52px);
  line-height: .96;
  letter-spacing: -.04em;
}

.cover-facts {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid #55554f;
}

.cover-facts li {
  padding: 11px 0;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid #55554f;
  color: #aaa9a2;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
}

.cover-facts strong {
  color: #fff;
}

.proof-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  background: var(--sheet);
}

.proof {
  min-height: 128px;
  padding: 24px 3.2vw;
  border-right: 1px solid var(--ink);
}

.proof:last-child {
  border-right: 0;
}

.proof strong {
  display: block;
  font: 400 45px/1 Georgia, "Times New Roman", serif;
}

.proof span {
  display: block;
  margin-top: 13px;
  font: 800 9px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.section {
  padding-top: 105px;
  padding-bottom: 105px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .6fr);
  gap: 7vw;
  align-items: end;
  margin-bottom: 55px;
}

h2 {
  max-width: 870px;
  margin: 0;
  font-size: clamp(45px, 6vw, 88px);
  line-height: .88;
  letter-spacing: -.065em;
}

.section-heading > p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 2px solid var(--ink);
  background: var(--sheet);
}

.problem {
  min-height: 260px;
  padding: 25px;
  border-right: 1px solid var(--ink);
}

.problem:last-child {
  border-right: 0;
}

.problem b {
  color: var(--red);
  font: italic 400 42px/1 Georgia, "Times New Roman", serif;
}

.problem h3 {
  margin: 44px 0 12px;
  font-size: 28px;
  line-height: 1;
  letter-spacing: -.035em;
}

.problem p {
  margin: 0;
  color: var(--muted);
}

.score-preview {
  border: 2px solid var(--ink);
  background: var(--sheet);
  box-shadow: 14px 14px 0 var(--blue);
}

.preview-top {
  padding: 13px 18px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: #fff;
  background: var(--ink);
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.preview-top strong {
  color: var(--acid);
}

.preview-row {
  min-height: 76px;
  display: grid;
  grid-template-columns: 175px 1fr;
  border-bottom: 1px solid var(--hair);
}

.preview-row:last-child {
  border-bottom: 0;
}

.preview-label {
  padding: 19px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--ink);
  font: 800 10px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.preview-label small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 8px;
  text-transform: uppercase;
}

.staff {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8.5%;
  padding: 0 5%;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 11px,
      rgba(23, 23, 20, .28) 11px,
      rgba(23, 23, 20, .28) 12px
    );
}

.note {
  position: relative;
  width: 24px;
  height: 24px;
  display: block;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--ink);
}

.note::after {
  content: "";
  position: absolute;
  left: 17px;
  bottom: 17px;
  width: 2px;
  height: 25px;
  background: var(--ink);
}

.note.claim {
  border-radius: 2px;
  background: var(--blue);
  border-color: var(--blue);
}

.note.warning {
  border-radius: 2px 50% 50%;
  background: var(--red);
  border-color: var(--red);
}

.note.memory {
  border-radius: 50% 2px;
  background: var(--acid);
}

.note.hollow {
  background: var(--sheet);
}

.journey {
  margin-top: 70px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 5px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.act {
  min-height: 220px;
  padding: 21px;
  border-right: 1px solid var(--ink);
}

.act:last-child {
  border-right: 0;
}

.act strong {
  color: var(--blue);
  font: italic 400 36px/1 Georgia, "Times New Roman", serif;
}

.act h3 {
  margin: 46px 0 8px;
  font-size: 23px;
}

.act p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.evidence-band {
  color: #fff;
  background: var(--ink);
}

.evidence {
  padding-top: 95px;
  padding-bottom: 95px;
}

.evidence .section-index {
  color: var(--acid);
}

.evidence h2 {
  max-width: 930px;
}

.evidence-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid #575750;
}

.evidence-item {
  min-height: 180px;
  padding: 25px 25px 25px 0;
  border-bottom: 1px solid #575750;
}

.evidence-item:nth-child(odd) {
  border-right: 1px solid #575750;
}

.evidence-item:nth-child(even) {
  padding-left: 25px;
}

.evidence-item b {
  color: var(--acid);
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
}

.evidence-item h3 {
  margin: 18px 0 8px;
  font-size: 30px;
  line-height: 1;
}

.evidence-item p {
  max-width: 570px;
  margin: 0;
  color: #aaa9a2;
}

.evidence-item a {
  color: var(--acid);
}

.architecture {
  padding-top: 105px;
  padding-bottom: 105px;
}

.architecture-flow {
  margin: 50px 0 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 2px solid var(--ink);
  background: var(--sheet);
}

.architecture-node {
  position: relative;
  min-height: 170px;
  padding: 22px;
  border-right: 1px solid var(--ink);
}

.architecture-node:last-child {
  border-right: 0;
}

.architecture-node::after {
  content: "→";
  position: absolute;
  z-index: 2;
  right: -14px;
  top: 50%;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 50%;
  transform: translateY(-50%);
}

.architecture-node:last-child::after {
  content: none;
}

.architecture-node span {
  color: var(--red);
  font: 800 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.architecture-node h3 {
  margin: 44px 0 7px;
  font-size: 22px;
}

.architecture-node p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.boundary {
  padding-top: 75px;
  padding-bottom: 75px;
  display: grid;
  grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
  gap: 8vw;
  border-top: 2px solid var(--ink);
}

.boundary h2 {
  font-size: clamp(40px, 5vw, 68px);
}

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

.boundary-list li {
  padding: 15px 0;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
  border-bottom: 1px solid var(--ink);
}

.boundary-list strong {
  color: var(--blue);
  font: 800 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
}

.cta {
  padding: 80px 3.2vw;
  color: #fff;
  background: var(--blue);
  text-align: center;
}

.cta h2 {
  max-width: 1000px;
  margin: auto;
}

.cta .button {
  margin-top: 34px;
  color: var(--ink);
  background: var(--acid);
  border-color: var(--acid);
  box-shadow: 7px 7px 0 var(--ink);
}

.site-footer {
  padding: 25px 3.2vw;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  color: #aead9f;
  background: var(--ink);
  font: 600 10px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.site-footer a {
  color: var(--acid);
}

.architecture-page .hero {
  min-height: 520px;
}

.architecture-page .hero h1 {
  font-size: clamp(55px, 7vw, 105px);
}

.architecture-page .section {
  padding-top: 75px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 2px solid var(--ink);
  background: var(--sheet);
}

.detail {
  min-height: 230px;
  padding: 25px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.detail:nth-child(even) {
  border-right: 0;
}

.detail h3 {
  margin: 30px 0 10px;
  font-size: 29px;
}

.detail code {
  color: var(--blue);
}

@media (max-width: 960px) {
  .hero,
  .section-heading,
  .boundary {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 60px;
  }

  .cover-note {
    max-width: 580px;
  }

  .problem-grid,
  .architecture-flow {
    grid-template-columns: 1fr;
  }

  .problem,
  .architecture-node {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .architecture-node::after {
    content: "↓";
    right: 25px;
    top: auto;
    bottom: -14px;
    transform: none;
  }

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

  .act:nth-child(even) {
    border-right: 0;
  }

  .act:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .site-nav {
    padding: 15px 18px;
    align-items: flex-start;
  }

  .brand span,
  .site-nav nav a:not(.score-link) {
    display: none;
  }

  .hero,
  .section,
  .evidence,
  .architecture,
  .boundary {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero {
    min-height: 0;
    padding-top: 50px;
  }

  h1 {
    font-size: 61px;
  }

  .proof-ribbon,
  .evidence-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .proof {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .evidence-item:nth-child(odd) {
    border-right: 0;
  }

  .evidence-item:nth-child(even) {
    padding-left: 0;
  }

  .preview-row {
    grid-template-columns: 120px 1fr;
  }

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

  .act {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .act:last-child {
    grid-column: auto;
  }

  .detail {
    min-height: 0;
    border-right: 0;
  }

  .boundary-list li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .site-footer {
    flex-direction: column;
    padding: 22px 18px;
  }
}

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