:root {
  --paper: #f6f1e5;
  --paper-deep: #e8dfc7;
  --white: #fffdf7;
  --ink: #101510;
  --ink-soft: #50564f;
  --ink-faint: #737970;
  --forest: #1b4d3e;
  --forest-dark: #10372c;
  --forest-soft: #d8e4dc;
  --amber: #d6911c;
  --amber-soft: #f7e7c2;
  --line: #c9c1a8;
  --shadow: 7px 7px 0 var(--ink);
  --font: "Inter Tight", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --gutter: clamp(18px, 4vw, 44px);
  --content: 760px;
  --wide: 1120px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(rgba(27, 77, 62, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 77, 62, .045) 1px, transparent 1px),
    var(--paper);
  background-size: 26px 26px;
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

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

::selection {
  background: var(--forest);
  color: var(--paper);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 9px 13px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}

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

.wide {
  width: min(var(--wide), calc(100% - (2 * var(--gutter))));
  margin-inline: auto;
}

.site-header {
  background: rgba(246, 241, 229, .96);
  border-bottom: 2px solid var(--ink);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand {
  flex: 0 0 auto;
}

.brand img {
  width: auto;
  height: 32px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 30px);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .055em;
  text-transform: uppercase;
}

.site-nav a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--forest);
  border-bottom-color: currentColor;
}

.breadcrumbs {
  padding: 14px 0;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.breadcrumbs a {
  color: var(--forest);
}

.hero {
  padding: clamp(32px, 5vw, 64px) 0 clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--line);
  border-bottom: 2px solid var(--ink);
}

.hero-grid {
  display: grid;
  gap: clamp(30px, 6vw, 72px);
  align-items: end;
}

.eyebrow,
.section-label,
.card-label {
  margin-bottom: 15px;
  color: var(--forest);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .09em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 15ch;
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 78px);
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: .98;
}

.hero-deck {
  max-width: 670px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: clamp(20px, 2.4vw, 27px);
  letter-spacing: -.018em;
  line-height: 1.38;
}

.hero-side {
  padding: clamp(22px, 3vw, 32px);
  background: var(--forest);
  color: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow);
}

.hero-side .card-label {
  color: #b8d5c8;
}

.hero-side strong {
  display: block;
  margin-bottom: 12px;
  font-size: clamp(21px, 2.5vw, 28px);
  letter-spacing: -.02em;
  line-height: 1.18;
}

.hero-side p:last-child {
  margin-bottom: 0;
  color: #e2ebe5;
  font-size: 15px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .035em;
  text-transform: uppercase;
}

.author {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

.author img {
  width: 38px;
  height: 38px;
  object-fit: cover;
  border: 1px solid var(--ink);
  border-radius: 50%;
}

.article-layout {
  display: grid;
  gap: clamp(36px, 6vw, 76px);
  align-items: start;
  padding: clamp(44px, 6vw, 72px) 0;
}

.contents {
  padding: 22px;
  background: var(--paper-deep);
  border: 1px solid var(--ink);
}

.contents strong {
  display: block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .075em;
  text-transform: uppercase;
}

.contents ol {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
  font-size: 14px;
}

.contents a {
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.article-body {
  min-width: 0;
}

.article-body section {
  scroll-margin-top: 24px;
}

.article-body section + section {
  margin-top: clamp(48px, 6vw, 72px);
  padding-top: clamp(40px, 5vw, 64px);
  border-top: 2px solid var(--ink);
}

.article-body h2 {
  max-width: 16ch;
  margin-bottom: 24px;
  font-size: clamp(31px, 4.5vw, 50px);
  font-weight: 750;
  letter-spacing: -.035em;
  line-height: 1.04;
}

.article-body h3 {
  margin: 34px 0 12px;
  font-size: clamp(21px, 2.5vw, 27px);
  letter-spacing: -.02em;
  line-height: 1.18;
}

.article-body p,
.article-body ul,
.article-body ol {
  max-width: var(--content);
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
  margin-top: 0;
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-body li + li {
  margin-top: 8px;
}

.article-body a {
  color: var(--forest);
  font-weight: 650;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}

.lead {
  color: var(--ink-soft);
  font-size: clamp(20px, 2.4vw, 25px);
  letter-spacing: -.014em;
  line-height: 1.48;
}

.principle {
  margin: 34px 0;
  padding: clamp(22px, 4vw, 34px);
  background: var(--amber-soft);
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 var(--amber);
}

.principle strong {
  display: block;
  max-width: 31ch;
  font-size: clamp(21px, 3vw, 29px);
  letter-spacing: -.02em;
  line-height: 1.25;
}

.field-grid,
.failure-grid {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.field-card,
.failure-card {
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--ink);
}

.field-card strong,
.failure-card strong {
  display: block;
  margin-bottom: 7px;
  font-size: 18px;
  line-height: 1.25;
}

.field-card p,
.failure-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.5;
}

.number {
  display: block;
  margin-bottom: 18px;
  color: var(--forest);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
}

.workflow {
  display: grid;
  margin-top: 34px;
  border: 2px solid var(--ink);
}

.workflow-step {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  padding: clamp(20px, 3vw, 28px);
  background: var(--white);
}

.workflow-step + .workflow-step {
  border-top: 1px solid var(--ink);
}

.workflow-step .step-number {
  color: var(--forest);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
}

.workflow-step h3 {
  margin: 0 0 7px;
  font-size: 21px;
}

.workflow-step p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.comparison {
  width: 100%;
  margin-top: 34px;
  border-collapse: collapse;
  background: var(--white);
  border: 2px solid var(--ink);
  font-size: 15px;
}

.comparison th,
.comparison td {
  padding: 17px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison th {
  background: var(--forest);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.comparison tr:last-child td {
  border-bottom: 0;
}

.comparison th:last-child,
.comparison td:last-child {
  border-right: 0;
}

.checklist {
  display: grid;
  gap: 12px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  margin: 0;
  padding: 16px 18px 16px 48px;
  background: var(--white);
  border: 1px solid var(--line);
}

.checklist li::before {
  position: absolute;
  top: 17px;
  left: 18px;
  color: var(--forest);
  content: "□";
  font-family: var(--mono);
  font-weight: 700;
}

.cta-grid {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.cta-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 230px;
  padding: clamp(24px, 4vw, 34px);
  background: var(--paper-deep);
  color: var(--ink);
  border: 2px solid var(--ink);
}

.cta-card--dark {
  background: var(--forest);
  color: var(--paper);
}

.cta-card--dark .card-label {
  color: #b8d5c8;
}

.cta-card h3 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 31px);
}

.cta-card p {
  margin-bottom: 24px;
  color: inherit;
  font-size: 15px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding: 12px 15px;
  background: var(--ink);
  color: var(--paper) !important;
  border: 2px solid var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .045em;
  text-decoration: none !important;
  text-transform: uppercase;
}

.cta-card--dark .button {
  background: var(--paper);
  color: var(--ink) !important;
}

.button:hover,
.button:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--amber);
}

.faq {
  margin-top: 30px;
  border-top: 2px solid var(--ink);
}

.faq details {
  border-bottom: 1px solid var(--ink);
}

.faq summary {
  padding: 20px 36px 20px 0;
  cursor: pointer;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
}

.faq details p {
  padding: 0 0 22px;
  color: var(--ink-soft);
}

.scope-note {
  margin-top: 38px;
  padding: 20px;
  background: var(--paper-deep);
  border-left: 5px solid var(--amber);
  color: var(--ink-soft);
  font-size: 14px;
}

.final-cta {
  padding: clamp(44px, 6vw, 72px) 0;
  background: var(--ink);
  color: var(--paper);
}

.final-cta-inner {
  display: grid;
  gap: 28px;
  align-items: end;
}

.final-cta h2 {
  max-width: 16ch;
  margin-bottom: 0;
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: -.035em;
  line-height: 1.02;
}

.final-cta p {
  max-width: 580px;
  margin-bottom: 20px;
  color: #cbd3cd;
}

.final-cta a:not(.button) {
  color: var(--paper);
}

.site-footer {
  padding: 32px 0;
  background: var(--paper-deep);
  border-top: 2px solid var(--ink);
}

.site-footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
}

.site-footer p {
  margin: 0;
}

@media (min-width: 760px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, .55fr);
  }

  .article-layout {
    grid-template-columns: 230px minmax(0, var(--content));
    justify-content: center;
  }

  .contents {
    position: sticky;
    top: 24px;
  }

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

  .failure-grid,
  .cta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .final-cta-inner {
    grid-template-columns: minmax(0, 1fr) minmax(320px, .65fr);
  }
}

@media (max-width: 759px) {
  .site-header-inner {
    min-height: 62px;
  }

  .brand img {
    height: 29px;
  }

  .site-nav a:first-child {
    display: none;
  }

  .article-layout {
    padding-top: 36px;
  }

  .contents {
    order: -1;
  }

  .comparison {
    display: block;
    overflow-x: auto;
    white-space: normal;
  }

  .comparison th,
  .comparison td {
    min-width: 170px;
  }
}

@media (max-width: 460px) {
  .site-nav {
    gap: 12px;
    font-size: 10px;
  }

  .site-nav a:nth-child(2) {
    display: none;
  }

  .workflow-step {
    grid-template-columns: 38px 1fr;
    gap: 10px;
  }
}

@media print {
  body {
    background: #fff;
    color: #000;
  }

  .site-header,
  .breadcrumbs,
  .contents,
  .cta-grid,
  .final-cta,
  .site-footer {
    display: none;
  }

  .hero,
  .article-layout {
    padding: 20px 0;
  }

  .hero {
    border-bottom: 1px solid #000;
  }

  .hero-side {
    color: #000;
    background: #fff;
    box-shadow: none;
  }

  .article-layout {
    display: block;
  }

  .article-body section + section {
    break-before: page;
  }
}

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

  .button {
    transition: none;
  }
}