:root {
  color-scheme: light;
  --paper: #f4f4f2;
  --surface: #ffffff;
  --ink: #111111;
  --muted: #606060;
  --line: #d3d3cf;
  --line-strong: #9a9a96;
  --soft: #e9e9e6;
  --done: #171717;
  --action: #737373;
  --page: min(1180px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.22em;
}

a:hover {
  text-decoration-color: var(--ink);
}

a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

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

h1,
h2,
h3 {
  font-weight: 620;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

h1 {
  max-width: 900px;
  margin-bottom: 28px;
  font-size: clamp(3rem, 8vw, 6.8rem);
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(2.1rem, 5vw, 4.5rem);
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
}

p {
  margin-bottom: 0;
}

.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;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--surface);
  transform: translateY(-160%);
}

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

.site-header,
.site-footer,
main {
  width: var(--page);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.wordmark {
  display: inline-flex;
  width: 3.25rem;
  height: 2.65rem;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.wordmark img { display: block; width: 100%; height: auto; filter: invert(1) brightness(0.98); mix-blend-mode: darken; }

.page-intro {
  padding: clamp(72px, 10vw, 144px) 0 72px;
}

.page-intro__lede {
  max-width: 740px;
  font-size: clamp(1.15rem, 2.3vw, 1.55rem);
  color: #333333;
}

.eyebrow,
.section-number {
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 720;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: center;
  margin-top: 44px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.legend p {
  display: flex;
  gap: 9px;
  align-items: center;
}

.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 28px;
  font-size: 0.9rem;
}

.section-nav a {
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.plan-section {
  scroll-margin-top: 24px;
  padding: clamp(72px, 9vw, 118px) 0;
  border-top: 1px solid var(--line-strong);
}

.plan-section--priority {
  padding-top: 58px;
  background: var(--ink);
  color: var(--surface);
  box-shadow: 0 0 0 100vmax var(--ink);
  clip-path: inset(0 -100vmax);
}

.plan-section--priority .eyebrow,
.plan-section--priority .section-number,
.plan-section--priority .section-heading p,
.plan-section--priority .priority-list p {
  color: #bcbcbc;
}

.plan-section--priority a {
  text-decoration-color: #858585;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(56px, 0.22fr) minmax(0, 1fr);
  gap: 24px;
  margin-bottom: clamp(42px, 6vw, 72px);
}

.section-heading > div {
  max-width: 820px;
}

.section-heading p:last-child {
  max-width: 700px;
  color: var(--muted);
  font-size: 1.05rem;
}

.plan-section--priority .section-heading p:last-child {
  color: #bcbcbc;
}

.priority-list,
.status-list,
.link-list,
.story-list,
.application-steps,
.day-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.priority-list {
  border-top: 1px solid #4a4a4a;
}

.priority-list li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 24px;
  padding: 30px 0 34px;
  border-bottom: 1px solid #4a4a4a;
}

.priority-list h3,
.priority-list p {
  max-width: 880px;
}

.priority-list__number {
  color: #a0a0a0;
  font-size: 0.8rem;
  font-weight: 700;
}

.status-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(48px, 8vw, 100px);
}

.status-columns > section > h3 {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
}

.status-list li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.status-list strong {
  display: block;
  line-height: 1.3;
}

.status-list p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.status-icon {
  display: inline-grid;
  width: 20px;
  height: 20px;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1;
}

.status-icon--done {
  color: var(--done);
}

.status-icon--action {
  color: var(--action);
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.role-grid article {
  padding: 30px 30px 34px 0;
}

.role-grid article + article {
  padding-left: 30px;
  border-left: 1px solid var(--line);
}

.role-grid article p:last-child {
  color: var(--muted);
  font-size: 0.93rem;
}

.subsection {
  margin-top: clamp(52px, 8vw, 88px);
}

.subsection > h3 {
  margin-bottom: 22px;
}

.technology-grid,
.brand-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.technology-grid > div,
.brand-grid > a {
  display: flex;
  min-width: 0;
  min-height: 72px;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.technology-grid img,
.brand-grid img,
.link-list img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  filter: grayscale(1) contrast(1.1);
}

.technology-grid span,
.brand-grid span {
  overflow: hidden;
  font-size: 0.88rem;
  font-weight: 650;
  line-height: 1.25;
  text-overflow: ellipsis;
}

.brand-grid a {
  text-decoration: none;
}

.brand-grid a:hover {
  background: var(--soft);
}

.keyword-line,
.note,
.tracking {
  max-width: 940px;
  margin-top: 26px;
  color: var(--muted);
}

.split-reference,
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(48px, 8vw, 100px);
}

.link-list {
  border-top: 1px solid var(--line-strong);
}

.link-list li {
  display: grid;
  grid-template-columns: 28px max-content minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}

.link-list span {
  color: var(--muted);
  font-size: 0.82rem;
  text-align: right;
}

.application-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line);
}

.application-steps li {
  min-height: 160px;
  padding: 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.application-steps span,
.evidence-grid span {
  display: block;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.application-steps p {
  max-width: 270px;
}

.templates {
  border-top: 1px solid var(--line-strong);
  padding-top: 32px;
}

.templates article {
  display: grid;
  grid-template-columns: minmax(100px, 0.25fr) minmax(0, 1fr);
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.templates blockquote {
  max-width: 850px;
  margin-bottom: 0;
  color: #333333;
  font-size: 1rem;
}

.story-list {
  columns: 2;
  column-gap: 80px;
  border-top: 1px solid var(--line-strong);
}

.story-list li {
  break-inside: avoid;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.story-list li::before {
  content: "—";
  margin-right: 12px;
  color: var(--muted);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  margin-top: 64px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.evidence-grid div {
  min-height: 132px;
  padding: 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.evidence-grid p {
  font-size: 0.84rem;
  font-weight: 620;
  line-height: 1.3;
}

.schedule-grid section > h3,
.ready-list > h3 {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
}

.day-list li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.day-list span {
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.day-list p {
  font-size: 0.92rem;
}

.schedule-grid section > h3:not(:first-child) {
  margin-top: 44px;
}

.ready-list {
  max-width: 760px;
  margin-top: clamp(64px, 10vw, 112px);
}

.site-footer {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  justify-content: space-between;
  padding: 34px 0 48px;
  border-top: 1px solid var(--line-strong);
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .status-columns,
  .split-reference,
  .schedule-grid {
    grid-template-columns: 1fr;
  }

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

  .role-grid article {
    padding: 24px 0;
  }

  .role-grid article + article {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .technology-grid,
  .brand-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .evidence-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  :root {
    --page: calc(100% - 32px);
  }

  h1 {
    font-size: clamp(2.75rem, 16vw, 4.5rem);
  }

  .site-header {
    min-height: 70px;
  }

  .page-intro {
    padding: 64px 0 54px;
  }

  .section-heading,
  .priority-list li {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 14px;
  }

  .section-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .technology-grid,
  .brand-grid,
  .application-steps,
  .evidence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .application-steps li {
    min-height: 150px;
  }

  .templates article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .story-list {
    columns: 1;
  }

  .link-list li {
    grid-template-columns: 28px minmax(0, 1fr);
  }

  .link-list span {
    display: none;
  }

  .site-footer {
    display: block;
  }

  .site-footer nav {
    justify-content: flex-start;
    margin-top: 18px;
  }
}

@media (max-width: 390px) {
  .technology-grid,
  .brand-grid,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .application-steps {
    grid-template-columns: 1fr;
  }

  .application-steps li {
    min-height: auto;
  }
}

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

@media print {
  :root {
    --page: 100%;
  }

  body {
    background: #ffffff;
    font-size: 10pt;
  }

  .site-header,
  .section-nav,
  .site-footer {
    display: none;
  }

  .page-intro,
  .plan-section {
    padding: 28px 0;
  }

  .plan-section--priority {
    background: #ffffff;
    color: #111111;
    box-shadow: none;
  }

  .plan-section--priority .eyebrow,
  .plan-section--priority .section-number,
  .plan-section--priority .section-heading p,
  .plan-section--priority .priority-list p {
    color: #555555;
  }

  a {
    text-decoration: none;
  }
}