:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --primary: #f54e00;
  --primary-active: #d04200;
  --ink: #26251e;
  --body: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
  --t-thinking: #dfa88f;
  --t-grep: #9fc9a2;
  --t-read: #9fbbe0;
  --t-edit: #c0a8dd;
  --t-done: #c08532;
  --maxw: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--body);
  font-family: "Inter", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.15px;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--ink); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 400;
  margin: 0 0 16px;
}

h1 { font-size: 56px; line-height: 1.1; letter-spacing: -1.68px; }
h2 { font-size: 36px; line-height: 1.2; letter-spacing: -0.72px; }
h3 { font-size: 26px; line-height: 1.25; letter-spacing: -0.325px; }
h4 { font-size: 22px; line-height: 1.3; letter-spacing: -0.11px; }

p { margin: 0 0 16px; }

.section { padding: 80px 0; }
.section--tight { padding: 48px 0; }

.eyebrow {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

.lead { font-size: 18px; color: var(--body); max-width: 60ch; }

.updated {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  color: var(--muted);
}

/* Top navigation */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
}
.top-nav__inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}
.wordmark:hover { text-decoration: none; }
.wordmark__mark {
  width: 22px; height: 22px;
  border-radius: 6px;
  background: var(--primary);
  display: inline-block;
}
.wordmark__mark::after {
  content: "";
  display: block;
  width: 8px; height: 8px;
  margin: 7px;
  background: var(--canvas);
  border-radius: 2px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
}
.nav-menu a:hover { color: var(--ink); text-decoration: none; }
.nav-menu a.is-active { color: var(--ink); }
.nav-toggle {
  display: none;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  width: 40px; height: 40px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--ink);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1;
}
.btn--primary {
  background: var(--primary);
  color: var(--on-primary);
  padding: 13px 18px;
}
.btn--primary:hover { background: var(--primary-active); text-decoration: none; }
.btn--secondary {
  background: var(--surface-card);
  color: var(--ink);
  border-color: var(--hairline-strong);
  padding: 12px 18px;
}
.btn--secondary:hover { text-decoration: none; border-color: var(--ink); }
.btn--ink {
  background: var(--ink);
  color: var(--canvas);
  padding: 14px 20px;
}
.btn--ink:hover { text-decoration: none; opacity: 0.92; }

/* Hero */
.hero { padding: 96px 0 64px; }
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { font-size: 72px; letter-spacing: -2.16px; }
.hero__media {
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-card);
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.figure-caption { font-size: 13px; color: var(--muted); padding: 12px 16px; }

/* Badges / pills */
.badge {
  display: inline-block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  background: var(--surface-strong);
  color: var(--ink);
  border-radius: 9999px;
  padding: 4px 10px;
}

.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; }

/* Cards & grids */
.grid { display: grid; gap: 16px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
}
.card h3 { font-size: 22px; letter-spacing: -0.11px; }
.card h4 { font-size: 18px; font-weight: 600; letter-spacing: 0; }
.card p:last-child { margin-bottom: 0; }

.article-card { display: flex; flex-direction: column; overflow: hidden; padding: 0; }
.article-card__media { aspect-ratio: 16/10; overflow: hidden; border-bottom: 1px solid var(--hairline); }
.article-card__media img { width: 100%; height: 100%; object-fit: cover; }
.article-card__body { padding: 24px; }
.article-card__body h3 { font-size: 22px; }
.article-card__meta { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 11px; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.read-link { font-weight: 500; color: var(--ink); }

/* Editorial article body */
.article-hero {
  border-bottom: 1px solid var(--hairline);
  padding: 64px 0 40px;
}
.article-body { padding: 56px 0 80px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 280px; gap: 48px; }
.prose { max-width: 760px; }
.prose h2 { margin-top: 40px; }
.prose h3 { margin-top: 28px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose figure { margin: 32px 0; }
.prose figure img { border: 1px solid var(--hairline); border-radius: 12px; }

.callout {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--t-done);
  border-radius: 8px;
  padding: 20px;
  margin: 28px 0;
}
.callout p:last-child { margin-bottom: 0; }

.keyfacts {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px;
}
.keyfacts dt { font-weight: 600; color: var(--ink); margin-top: 12px; }
.keyfacts dt:first-child { margin-top: 0; }
.keyfacts dd { margin: 4px 0 0; }

aside.sidebar { align-self: start; position: sticky; top: 88px; display: grid; gap: 16px; }
.toc a { display: block; font-size: 14px; color: var(--body); padding: 4px 0; }

.data-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 15px; }
.data-table th, .data-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--hairline); }
.data-table th { font-weight: 600; color: var(--ink); background: var(--canvas-soft); }

.source-list { list-style: none; padding: 0; margin: 0; }
.source-list li { padding: 10px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 14px; }
.source-list li:last-child { border-bottom: 0; }

/* Sections, dividers */
.section-head { max-width: 60ch; margin-bottom: 40px; }
.divider { height: 1px; background: var(--hairline); border: 0; margin: 0; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 16px; }
.step { display: flex; gap: 16px; }
.step__num {
  flex: 0 0 auto;
  width: 32px; height: 32px;
  border-radius: 9999px;
  background: var(--ink);
  color: var(--canvas);
  display: flex; align-items: center; justify-content: center;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
}
.step h4 { margin-bottom: 4px; }

/* Contact form */
.form-band { background: var(--canvas-soft); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.form-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: 2px solid var(--ink); outline-offset: 0; border-color: var(--ink); }
.form-note { font-size: 13px; color: var(--muted); }
.form-status { display: none; margin-top: 16px; padding: 12px 16px; border-radius: 8px; font-size: 14px; }
.form-status.is-success { display: block; background: rgba(31,138,101,0.1); color: var(--success); border: 1px solid rgba(31,138,101,0.3); }
.btn[disabled] { opacity: 0.6; cursor: progress; }

.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 8px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 15px; }

/* Footer */
.footer { background: var(--canvas); border-top: 1px solid var(--hairline); padding: 48px 0 32px; }
.footer__grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 32px; }
.footer h5 { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 8px; }
.footer a { font-size: 14px; color: var(--body); }
.footer a:hover { color: var(--ink); }
.footer__bottom { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.footer__disclaimer { font-size: 13px; color: var(--muted); max-width: 52ch; }

/* Cookie banner */
.cookie {
  position: fixed;
  left: 24px; right: 24px; bottom: 24px;
  z-index: 80;
  max-width: 720px;
  margin: 0 auto;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  padding: 20px 24px;
  display: none;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.cookie.is-visible { display: flex; }
.cookie p { margin: 0; font-size: 14px; color: var(--body); flex: 1 1 320px; }
.cookie__actions { display: flex; gap: 8px; }

.breadcrumb { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 12px; letter-spacing: 0.4px; color: var(--muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--muted); }

@media (max-width: 1024px) {
  .hero h1 { font-size: 56px; letter-spacing: -1.68px; }
  .article-layout { grid-template-columns: 1fr; }
  aside.sidebar { position: static; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-menu.is-open {
    display: flex;
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
  }
  .nav-toggle { display: inline-flex; }
  .hero { padding: 56px 0 40px; }
  .hero__grid, .form-grid, .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .hero h1 { font-size: 40px; letter-spacing: -1.2px; }
  h1 { font-size: 36px; letter-spacing: -1.08px; }
  h2 { font-size: 28px; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 32px; }
}