:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --ink: #26251e;
  --body: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
  --gold: #c08532;
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-pill: 9999px;
  --sp-base: 16px;
  --sp-lg: 24px;
  --sp-xl: 32px;
  --sp-section: 80px;
  --max: 1200px;
  --sans: "Inter", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--body);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.15px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 400;
  margin: 0 0 0.5em;
}

h1 { font-size: 72px; line-height: 1.1; letter-spacing: -2.16px; }
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 1em; }

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

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

.skip-link {
  position: absolute;
  left: -999px;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  background: var(--ink);
  color: var(--canvas);
  padding: 8px 14px;
  border-radius: var(--r-md);
  z-index: 200;
}

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

.section { padding: var(--sp-section) 0; }
.section-tight { padding: 48px 0; }

.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

.badge-pill {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: var(--r-pill);
  padding: 4px 10px;
}

/* Navigation */
.site-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 64px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 16px;
  height: 16px;
  border: 2px solid var(--primary);
  border-radius: var(--r-xs);
  display: inline-block;
}
.brand-name {
  color: var(--ink);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.2px;
}
.nav-menu { display: flex; align-items: center; gap: 24px; }
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}
.nav-link:hover { color: var(--primary); text-decoration: none; }
.nav-cta {
  background: var(--primary);
  color: var(--on-primary);
  padding: 9px 16px;
  border-radius: var(--r-md);
}
.nav-cta:hover { background: var(--primary-active); color: var(--on-primary); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  display: block;
}

/* Hero */
.hero { padding: 96px 0 64px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { margin-bottom: 20px; }
.hero-lead { font-size: 18px; color: var(--body); max-width: 36ch; margin-bottom: 24px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-figure {
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  overflow: hidden;
  background: var(--surface-card);
}
.hero-figure img { width: 100%; height: 420px; object-fit: cover; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--r-md);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-dark {
  background: var(--ink);
  color: var(--canvas);
  padding: 12px 20px;
  height: 44px;
}
.btn-dark:hover { color: var(--canvas); opacity: 0.92; }
.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  padding: 11px 18px;
  height: 44px;
}
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  padding: 10px 18px;
  height: 44px;
}
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }

/* Section heading */
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head p { color: var(--body); }

/* Card grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 24px;
}
.card h3 { font-size: 22px; }
.card-title { font-size: 18px; font-weight: 600; color: var(--ink); margin: 0 0 8px; }
.card p { font-size: 15px; color: var(--body); margin-bottom: 0; }

/* Article card */
.article-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.article-card img { width: 100%; height: 200px; object-fit: cover; }
.article-card-body { padding: 20px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.article-card-body h3 { font-size: 22px; margin-bottom: 10px; }
.article-card-body p { font-size: 15px; flex: 1; }
.article-meta { font-size: 13px; color: var(--muted); margin-top: 16px; }
.read-link { font-size: 14px; font-weight: 600; color: var(--primary); margin-top: 14px; }
.read-link:hover { color: var(--primary-active); }

/* Code-style callout (JetBrains mono surface from design) */
.note-block {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 20px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  line-height: 1.6;
}

/* Article layout */
.article-hero { padding: 56px 0 24px; }
.article-hero .eyebrow { margin-bottom: 14px; }
.article-figure {
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  overflow: hidden;
  margin: 0 0 8px;
}
.article-figure img { width: 100%; max-height: 440px; object-fit: cover; }
.caption { font-size: 13px; color: var(--muted); margin: 8px 0 0; }
.prose { max-width: 72ch; }
.prose h2 { font-size: 28px; margin-top: 40px; }
.prose h3 { font-size: 21px; margin-top: 28px; }
.prose p, .prose li { font-size: 16px; color: var(--body); }
.prose ul, .prose ol { padding-left: 20px; }
.prose li { margin-bottom: 8px; }

.callout {
  border-left: 3px solid var(--gold);
  background: var(--canvas-soft);
  padding: 16px 20px;
  border-radius: var(--r-sm);
  margin: 24px 0;
}
.callout strong { color: var(--ink); }

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

.ref-list { font-size: 14px; }
.ref-list a { color: var(--ink); text-decoration: underline; }

.divider { height: 1px; background: var(--hairline); border: 0; margin: 0; }

/* Contact form */
.form-wrap {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 32px;
}
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.field input {
  width: 100%;
  height: 44px;
  padding: 12px 16px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-md);
  background: var(--surface-card);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
}
.field input:focus {
  outline: none;
  border-color: var(--primary);
}
.form-msg {
  display: none;
  margin-top: 8px;
  padding: 12px 16px;
  border-radius: var(--r-md);
  font-size: 14px;
}
.form-msg.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-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.contact-info p { color: var(--body); }
.contact-info .info-row { margin-bottom: 14px; }
.contact-info .info-label { font-size: 13px; text-transform: uppercase; letter-spacing: 0.88px; color: var(--muted); font-weight: 600; }

/* Footer */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 32px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-head {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 14px;
}
.footer-link {
  display: block;
  font-size: 14px;
  color: var(--body);
  margin-bottom: 10px;
}
.footer-link:hover { color: var(--ink); }
.footer-static { color: var(--muted); }
.footer-note { font-size: 14px; color: var(--body); margin-top: 12px; max-width: 30ch; }
.footer-base {
  max-width: var(--max);
  margin: 40px auto 0;
  padding: 24px 24px 0;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 24px;
  max-width: 760px;
  margin: 0 auto;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-lg);
  padding: 20px 24px;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  z-index: 150;
}
.cookie-banner.show { display: flex; }
.cookie-text { font-size: 14px; color: var(--body); margin: 0; }
.cookie-text a { text-decoration: underline; }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }
.cookie-actions .btn { height: 40px; padding: 9px 16px; }

@media (max-width: 1024px) {
  h1 { font-size: 56px; letter-spacing: -1.4px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure img { height: 340px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    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 24px;
  }
  .nav-menu.open { display: flex; }
  .nav-cta { width: 100%; text-align: center; }
}

@media (max-width: 640px) {
  h1 { font-size: 38px; letter-spacing: -1px; }
  h2 { font-size: 28px; letter-spacing: -0.5px; }
  .hero { padding: 56px 0 40px; }
  .section { padding: 56px 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
  .cookie-actions { width: 100%; }
  .cookie-actions .btn { flex: 1; }
}