: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;
  --tl-thinking: #dfa88f;
  --tl-grep: #9fc9a2;
  --tl-read: #9fbbe0;
  --tl-edit: #c0a8dd;
  --tl-done: #c08532;
  --sans: "Inter", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --maxw: 1200px;
}

* { box-sizing: border-box; }

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

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

img { max-width: 100%; height: auto; 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: -2px; }
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; font-weight: 400; }

p { margin: 0 0 16px; }

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

.top-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-nav .nav-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.4px;
}

.wordmark .dot {
  width: 10px;
  height: 10px;
  border-radius: 9999px;
  background: var(--primary);
  display: inline-block;
}

.wordmark:hover { text-decoration: none; }

.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(--ink);
}

.nav-toggle {
  display: none;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  font-size: 18px;
  color: var(--ink);
}

.hero-band {
  padding: 80px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-band h1 { margin-bottom: 20px; }

.hero-sub {
  font-size: 18px;
  color: var(--body);
  max-width: 46ch;
  margin-bottom: 24px;
}

.hero-figure {
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-card);
}

.hero-figure img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; }

figure { margin: 0; }

figcaption {
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  padding: 12px 16px;
  border-top: 1px solid var(--hairline);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1;
  transition: background 0.15s ease;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  padding: 13px 18px;
}
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }

.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border-color: var(--hairline-strong);
  padding: 13px 18px;
}

.btn-ink {
  background: var(--ink);
  color: var(--canvas);
  padding: 14px 20px;
}

.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

.section { padding: 80px 0; }
.section-tight { padding: 56px 0; }

.section-head { max-width: 60ch; margin-bottom: 32px; }

.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: 12px;
  padding: 24px;
}

.card h3, .card h4 { color: var(--ink); }

.card .card-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; }

.card p { font-size: 16px; color: var(--body); margin-bottom: 0; }

.badge {
  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: 9999px;
  padding: 4px 10px;
}

.article-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.article-card .thumb { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }

.article-card .body { padding: 20px 24px 24px; display: flex; flex-direction: column; gap: 8px; }

.article-card .card-title { font-size: 22px; line-height: 1.3; letter-spacing: -0.11px; color: var(--ink); }

.article-card p { font-size: 16px; color: var(--body); margin: 0; }

.article-card .meta { font-size: 13px; color: var(--muted); }

.read-link { font-size: 14px; font-weight: 500; color: var(--primary); margin-top: 4px; }
.read-link:hover { color: var(--primary-active); }

.info-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.info-list li {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 16px;
  color: var(--body);
}
.info-list li strong { color: var(--ink); font-weight: 600; }

.code-block {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
}

.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 0 80px;
}

.article header { margin-bottom: 32px; }

.article h1 { font-size: 44px; line-height: 1.12; letter-spacing: -1.4px; margin-bottom: 16px; }

.article .meta { font-size: 13px; color: var(--muted); margin-bottom: 24px; }

.article figure { margin: 32px 0; border: 1px solid var(--hairline); border-radius: 12px; overflow: hidden; background: var(--surface-card); }

.article p, .article li { font-size: 16px; line-height: 1.6; letter-spacing: 0.08px; color: var(--body); }

.article h2 { margin-top: 40px; font-size: 30px; letter-spacing: -0.6px; }
.article h3 { margin-top: 28px; font-size: 22px; letter-spacing: -0.2px; }

.article ul, .article ol { padding-left: 20px; margin: 0 0 16px; }
.article li { margin-bottom: 8px; }

.callout {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline-strong);
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 28px 0;
}
.callout p { margin: 0; color: var(--ink); }

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--hairline);
}
.spec-table th { background: var(--surface-strong); color: var(--ink); font-weight: 600; }
.spec-table td { color: var(--body); }
.spec-table tr:last-child td { border-bottom: none; }

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

.related { border-top: 1px solid var(--hairline); margin-top: 48px; padding-top: 32px; }
.related ul { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.related a { color: var(--primary); font-weight: 500; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }

.form-field { margin-bottom: 16px; }
.form-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.form-field input {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  height: 44px;
  font-size: 16px;
  font-family: var(--sans);
  color: var(--ink);
}
.form-field input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

.form-note { font-size: 13px; color: var(--muted); margin-top: 4px; }

.form-status {
  display: none;
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
}
.form-status.success { display: block; background: var(--canvas-soft); border: 1px solid var(--success); color: var(--success); }

.footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 48px;
  color: var(--body);
}

.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }

.footer h5 {
  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; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer a { font-size: 14px; color: var(--body); }

.footer .brand-blurb { font-size: 14px; color: var(--body); max-width: 38ch; margin-top: 12px; }

.footer-bottom {
  border-top: 1px solid var(--hairline);
  margin-top: 40px;
  padding-top: 24px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.disclaimer { font-size: 13px; color: var(--muted); max-width: 80ch; margin-top: 12px; }

.cookie-banner {
  display: none;
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 24px;
  z-index: 100;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  padding: 20px 24px;
  max-width: 760px;
  margin: 0 auto;
}
.cookie-banner.show { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; justify-content: space-between; }
.cookie-banner p { margin: 0; font-size: 14px; color: var(--body); flex: 1 1 320px; }
.cookie-banner .cookie-actions { display: flex; gap: 12px; }
.cookie-banner .btn { padding: 10px 16px; }

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  h1 { font-size: 36px; letter-spacing: -1px; }
  .article h1 { font-size: 32px; letter-spacing: -0.8px; }
  .hero-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 24px; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { padding: 8px 0; border-bottom: 1px solid var(--hairline-soft); }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}