@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400&display=swap');

: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;
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 9999px;
}

* { 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; }

h1, h2, h3 { color: var(--ink); font-weight: 400; margin: 0 0 16px; }
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: 18px; font-weight: 600; color: var(--ink); margin: 0 0 12px; letter-spacing: 0; }

p { margin: 0 0 16px; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: var(--canvas); padding: 8px 16px; border-radius: var(--r-md); z-index: 1000;
}
.skip-link:focus { left: 16px; top: 16px; }

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

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

.eyebrow {
  display: inline-block;
  font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 16px;
}

.lead { font-size: 18px; color: var(--body); max-width: 64ch; }

.top-nav { background: var(--canvas); border-bottom: 1px solid var(--hairline); position: sticky; top: 0; z-index: 100; }
.nav-inner { max-width: var(--maxw); margin: 0 auto; height: 64px; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.wordmark { font-size: 18px; font-weight: 600; color: var(--primary); letter-spacing: -0.2px; }
.wordmark:hover { text-decoration: none; }
.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-link-cta { background: var(--primary); color: var(--on-primary); padding: 8px 16px; border-radius: var(--r-md); }
.nav-link-cta:hover { background: var(--primary-active); color: var(--on-primary); }
.nav-toggle { display: none; background: var(--surface-card); border: 1px solid var(--hairline-strong); color: var(--ink); font-size: 14px; font-weight: 500; padding: 8px 14px; border-radius: var(--r-md); cursor: pointer; }

.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; line-height: 1; }
.btn-primary { background: var(--primary); color: var(--on-primary); padding: 10px 18px; height: 40px; }
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); text-decoration: none; }
.btn-secondary { background: var(--surface-card); color: var(--ink); border-color: var(--hairline-strong); padding: 10px 18px; height: 40px; }
.btn-secondary:hover { text-decoration: none; }
.btn-ink { background: var(--ink); color: var(--canvas); padding: 12px 20px; height: 44px; }
.btn-ink:hover { color: var(--canvas); text-decoration: none; }
.text-link { color: var(--ink); font-weight: 500; border-bottom: 1px solid var(--hairline-strong); }
.text-link:hover { color: var(--primary); border-color: var(--primary); text-decoration: none; }

.hero { padding: 80px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.hero p.lead { margin-bottom: 24px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.hero-figure { border: 1px solid var(--hairline); border-radius: var(--r-lg); overflow: hidden; background: var(--surface-card); }
.hero-figure img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
figure { margin: 0; }
figcaption { font-size: 13px; color: var(--muted); padding: 12px 16px; border-top: 1px solid var(--hairline); }

.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: var(--r-pill); padding: 4px 10px; }

.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 h4 { margin-bottom: 8px; }
.card p { font-size: 15px; margin-bottom: 0; }

.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 { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }
.article-card .ac-body { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.article-card h3 { font-size: 22px; line-height: 1.3; letter-spacing: -0.11px; margin: 0; }
.article-card p { font-size: 15px; margin: 0; flex: 1; }

.section-head { max-width: 70ch; margin-bottom: 40px; }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin: 32px 0 0; }
.pill { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--ink); border-radius: var(--r-pill); padding: 4px 10px; text-align: center; }
.pill-1 { background: var(--t-thinking); }
.pill-2 { background: var(--t-grep); }
.pill-3 { background: var(--t-read); }
.pill-4 { background: var(--t-edit); }
.pill-5 { background: var(--t-done); color: var(--on-primary); }

.note { background: var(--canvas-soft); border: 1px solid var(--hairline); border-left: 3px solid var(--t-done); border-radius: var(--r-md); padding: 20px; margin: 24px 0; }
.note h4 { margin-bottom: 8px; }
.note p:last-child { margin-bottom: 0; }

.code-block { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--r-lg); padding: 20px; font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--ink); line-height: 1.5; overflow-x: auto; margin: 24px 0; white-space: pre; }

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding: 12px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 15px; }
.checklist li:last-child { border-bottom: 0; }

.article-body { max-width: 760px; margin: 0 auto; }
.article-body p, .article-body li { font-size: 16px; letter-spacing: 0.08px; color: var(--body); }
.article-body h2 { margin-top: 48px; }
.article-body h3 { margin-top: 32px; }
.article-body ul, .article-body ol { padding-left: 20px; margin: 0 0 16px; }
.article-body li { margin-bottom: 8px; }
.article-figure { margin: 32px 0; border: 1px solid var(--hairline); border-radius: var(--r-lg); overflow: hidden; background: var(--surface-card); }
.article-figure img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

.meta-line { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }

.related { border-top: 1px solid var(--hairline); margin-top: 56px; padding-top: 32px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.form-field { margin-bottom: 16px; }
label { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
input, textarea {
  width: 100%; background: var(--surface-card); color: var(--ink);
  border: 1px solid var(--hairline-strong); border-radius: var(--r-md);
  padding: 12px 16px; font-family: inherit; font-size: 15px;
}
input { height: 44px; }
textarea { min-height: 120px; resize: vertical; }
input:focus, textarea:focus { outline: none; border-color: var(--ink); }
.form-status { font-size: 14px; margin-top: 12px; min-height: 20px; }
.form-status.success { color: var(--success); }
.contact-meta { font-size: 15px; }
.contact-meta dt { font-weight: 600; color: var(--ink); margin-top: 16px; }
.contact-meta dd { margin: 4px 0 0; color: var(--body); }

.legal-body { max-width: 760px; margin: 0 auto; }
.legal-body h2 { margin-top: 40px; }
.legal-body p, .legal-body li { font-size: 16px; }

.footer { background: var(--canvas); border-top: 1px solid var(--hairline); padding: 64px 0 48px; margin-top: 80px; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-head { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); }
.footer-link { font-size: 14px; color: var(--body); }
.footer-link:hover { color: var(--primary); }
.footer-note { font-size: 14px; color: var(--body); margin: 8px 0 0; }
.footer-bottom { max-width: var(--maxw); margin: 48px auto 0; padding: 24px 24px 0; border-top: 1px solid var(--hairline); display: flex; flex-direction: column; gap: 8px; }
.footer-disclaimer { font-size: 13px; color: var(--muted); margin: 0; }
.footer-copy { font-size: 13px; color: var(--muted); margin: 0; }

.cookie-banner { position: fixed; left: 16px; right: 16px; bottom: 16px; background: var(--surface-card); border: 1px solid var(--hairline-strong); border-radius: var(--r-lg); z-index: 200; }
.cookie-inner { max-width: var(--maxw); margin: 0 auto; padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cookie-text { font-size: 14px; color: var(--body); margin: 0; flex: 1; min-width: 240px; }
.cookie-actions { display: flex; gap: 12px; }

@media (max-width: 1024px) {
  h1 { font-size: 56px; letter-spacing: -1.5px; }
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: flex-start; gap: 0; background: var(--canvas); border-bottom: 1px solid var(--hairline); padding: 8px 24px 16px; }
  .nav-menu.open { display: flex; }
  .nav-menu .nav-link { padding: 12px 0; width: 100%; }
  .nav-link-cta { margin-top: 8px; }
}

@media (max-width: 640px) {
  h1 { font-size: 32px; letter-spacing: -1px; }
  h2 { font-size: 28px; letter-spacing: -0.5px; }
  .section { padding: 56px 0; }
  .grid-3, .grid-2, .contact-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .cookie-inner { flex-direction: column; align-items: flex-start; }
}