: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;
  --gold: #c08532;
  --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(--ink);
  font-family: "Inter", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 400;
  letter-spacing: -0.15px;
  font-size: 16px;
  line-height: 1.5;
  -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: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

h1, h2, h3, h4 {
  font-weight: 400;
  color: var(--ink);
  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: 22px;
  line-height: 1.3;
  letter-spacing: -0.11px;
}

p { color: var(--body); margin: 0 0 16px; }

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

.lead {
  font-size: 18px;
  color: var(--body);
  line-height: 1.6;
}

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

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

.wordmark {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.4px;
  color: var(--ink);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  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: var(--r-md);
  padding: 8px 10px;
  cursor: pointer;
  font-size: 14px;
}

.hero {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero .lead { margin-bottom: 24px; }

.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;
  transition: background .15s ease, color .15s ease;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  padding: 10px 18px;
  height: 40px;
}
.btn-primary:hover { background: var(--primary-active); text-decoration: none; color: var(--on-primary); }

.btn-dark {
  background: var(--ink);
  color: var(--canvas);
  padding: 12px 20px;
  height: 44px;
}
.btn-dark:hover { background: #36352b; text-decoration: none; color: var(--canvas); }

.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  padding: 10px 18px;
  height: 40px;
}
.btn-secondary:hover { border-color: var(--ink); text-decoration: none; }

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

.text-link {
  color: var(--ink);
  font-weight: 500;
  font-size: 14px;
  border-bottom: 1px solid var(--hairline-strong);
}
.text-link:hover { color: var(--primary); border-color: var(--primary); text-decoration: none; }

.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;
}

.hero-figure {
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface-card);
}
.hero-figure img { width: 100%; height: 380px; object-fit: cover; }
.figure-caption {
  font-size: 13px;
  color: var(--muted);
  padding: 12px 16px;
  border-top: 1px solid var(--hairline-soft);
}

.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, .card h4 { margin-top: 0; }
.card .title-md { font-size: 18px; font-weight: 600; letter-spacing: 0; margin: 0 0 8px; }
.card p:last-child { margin-bottom: 0; }

.card-media {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.card-media img { width: 100%; height: 220px; object-fit: cover; }
.card-media .card-body { padding: 24px; }
.card-media .card-body h3 { margin-top: 0; }
.card-media .card-body p:last-child { margin-bottom: 0; }

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

.band-soft { background: var(--canvas-soft); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }

.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  color: var(--body);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--success);
  border-bottom: 2px solid var(--success);
  transform: rotate(-45deg);
}

.note {
  border-left: 3px solid var(--gold);
  background: var(--canvas-soft);
  border-radius: var(--r-md);
  padding: 16px 20px;
  margin: 0 0 24px;
}
.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", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
  overflow-x: auto;
}

.spec-table { width: 100%; border-collapse: collapse; background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--r-lg); overflow: hidden; }
.spec-table th, .spec-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--hairline-soft); font-size: 15px; }
.spec-table th { color: var(--ink); font-weight: 600; background: var(--canvas-soft); }
.spec-table td { color: var(--body); }
.spec-table tr:last-child td { border-bottom: 0; }

.article-hero img { width: 100%; height: 360px; object-fit: cover; border-radius: var(--r-lg); border: 1px solid var(--hairline); }
.article-body { max-width: 760px; }
.article-body h2 { margin-top: 40px; }
.article-body h3 { margin-top: 28px; }
.meta-row { font-size: 13px; color: var(--muted); margin-bottom: 24px; }

.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--ink); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.form-field input, .form-field textarea {
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-md);
  padding: 12px 16px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  min-height: 44px;
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--primary); }
.form-note { font-size: 13px; color: var(--muted); margin-top: 8px; }
.form-message {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--r-md);
  font-size: 14px;
}
.form-message.success { display: block; background: rgba(31,138,101,0.1); color: var(--success); border: 1px solid rgba(31,138,101,0.3); }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.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 1fr 1fr 1fr;
  gap: 32px;
}
.footer h5 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.88px;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 16px;
}
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { margin-bottom: 10px; }
.footer a { font-size: 14px; color: var(--body); }
.footer a:hover { color: var(--ink); }
.footer-brand p { font-size: 14px; max-width: 280px; }
.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.cookie-banner {
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 24px;
  max-width: 720px;
  margin: 0 auto;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-lg);
  padding: 20px 24px;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.cookie-banner.show { display: flex; }
.cookie-banner p { margin: 0; font-size: 14px; flex: 1 1 320px; }
.cookie-banner .btn-row { flex: 0 0 auto; }

.disclaimer {
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--hairline);
  padding-top: 16px;
  margin-top: 16px;
}

@media (max-width: 1024px) {
  h1 { font-size: 56px; letter-spacing: -1.6px; }
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3, .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
    gap: 16px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .top-nav .container { position: relative; }
}

@media (max-width: 640px) {
  h1 { font-size: 32px; letter-spacing: -0.8px; }
  h2 { font-size: 28px; letter-spacing: -0.5px; }
  .section { padding: 56px 0; }
  .grid-3, .grid-2, .related-grid, .footer-grid, .form-grid { grid-template-columns: 1fr; }
  .hero-figure img { height: 240px; }
}