: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;
  --read: #9fbbe0;
  --grep: #9fc9a2;
  --edit: #c0a8dd;
  --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;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: -0.15px;
  -webkit-font-smoothing: antialiased;
}

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: -1.6px; }
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; }

.label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
}

.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;
}

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

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

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

.brand .dot { color: var(--primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}
.nav-links a:hover { color: var(--primary); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 16px;
  color: var(--ink);
}

.btn {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  border-radius: 8px;
  padding: 12px 18px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }

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

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

.btn-dark { background: var(--ink); color: var(--canvas); padding: 13px 20px; }

.hero {
  padding: 80px 0 56px;
}
.hero .grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero p.lead {
  font-size: 18px;
  color: var(--body);
  max-width: 48ch;
}
.hero-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

.hero-figure {
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-card);
}
.hero-figure img { aspect-ratio: 16 / 11; object-fit: cover; width: 100%; }
.figure-caption {
  font-size: 13px;
  color: var(--muted);
  padding: 12px 16px;
  border-top: 1px solid var(--hairline);
}

.section { padding: 80px 0; }
.section-soft { background: var(--canvas-soft); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.section-head { max-width: 60ch; margin-bottom: 32px; }
.section-head p { color: var(--body); }

.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 { font-size: 18px; font-weight: 600; letter-spacing: 0; }
.card .label { margin-bottom: 12px; }
.card p { color: var(--body); margin-bottom: 0; }

.article-card { display: flex; flex-direction: column; overflow: hidden; padding: 0; }
.article-card img { aspect-ratio: 16 / 10; object-fit: cover; }
.article-card .body { padding: 24px; }
.article-card h3 { margin-bottom: 8px; }
.article-card .meta { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.article-card .more { font-size: 14px; font-weight: 500; color: var(--primary); }

.steps { counter-reset: step; display: grid; gap: 16px; }
.step {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.step .num {
  flex: 0 0 auto;
  width: 28px; height: 28px;
  border-radius: 9999px;
  background: var(--surface-strong);
  color: var(--ink);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600;
}
.step h4 { font-size: 16px; font-weight: 600; letter-spacing: 0; margin-bottom: 4px; }
.step p { margin: 0; color: var(--body); font-size: 15px; }

.prose { max-width: 72ch; margin: 0 auto; }
.prose img { border: 1px solid var(--hairline); border-radius: 12px; margin: 24px 0 8px; width: 100%; }
.prose figure { margin: 24px 0; }
.prose figcaption { font-size: 13px; color: var(--muted); }
.prose ul, .prose ol { color: var(--body); padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose h2 { margin-top: 40px; }
.prose h3 { margin-top: 28px; }
.prose blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-left: 3px solid var(--hairline-strong);
  background: var(--canvas-soft);
  border-radius: 0 8px 8px 0;
  color: var(--body);
}

.callout {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 24px 0;
}
.callout .label { color: var(--primary); margin-bottom: 8px; }

.article-header { padding: 64px 0 32px; }
.article-header .meta { color: var(--muted); font-size: 14px; margin-top: 12px; }

.toc { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: 12px; padding: 20px 24px; margin-bottom: 32px; }
.toc .label { margin-bottom: 12px; }
.toc ul { margin: 0; padding-left: 18px; color: var(--body); }
.toc a { color: var(--body); }
.toc a:hover { color: var(--primary); }

.related { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }
.related a {
  font-size: 14px; font-weight: 500;
  border: 1px solid var(--hairline-strong);
  border-radius: 9999px;
  padding: 8px 16px;
  background: var(--surface-card);
}
.related a:hover { color: var(--primary); text-decoration: none; }

.form-band { background: var(--canvas-soft); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.contact-form { max-width: 560px; }
.form-row { margin-bottom: 16px; }
.form-row label {
  display: block;
  font-size: 14px; font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.form-row input {
  width: 100%;
  height: 44px;
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
}
.form-row input:focus { outline: none; border-color: var(--ink); }
.form-row input:invalid:not(:placeholder-shown) { border-color: var(--error); }
.form-note { font-size: 13px; color: var(--muted); }
.form-status {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  background: rgba(31,138,101,0.1);
  border: 1px solid var(--success);
  color: var(--success);
}
.form-status.show { display: block; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 48px 0 32px;
  color: var(--body);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-grid h4 { font-size: 13px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { font-size: 14px; color: var(--body); }
.footer-grid a:hover { color: var(--primary); text-decoration: none; }
.footer-bottom {
  border-top: 1px solid var(--hairline);
  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: 60ch; }

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

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

@media (max-width: 768px) {
  h1 { font-size: 36px; letter-spacing: -1px; }
  h2 { font-size: 28px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
    gap: 16px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: inline-block; }
  .hero .grid { grid-template-columns: 1fr; gap: 32px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
}