@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;
  --ink: #26251e;
  --body: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --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;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.narrow { max-width: 760px; }

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

h1 {
  font-size: 56px;
  line-height: 1.1;
  letter-spacing: -1.8px;
}

h2 {
  font-size: 36px;
  line-height: 1.2;
  letter-spacing: -0.72px;
  margin-top: 0;
}

h3 {
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.11px;
}

p { margin: 0 0 16px; }

a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--primary); }

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-xs);
  padding: 1px 5px;
}

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

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

.brand {
  color: var(--ink);
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: -0.3px;
}

.nav-menu { display: flex; gap: 24px; }

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

.nav-menu a:hover { color: var(--primary); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--ink);
  cursor: pointer;
}

.hero { background: var(--canvas); padding: 80px 0 48px; }
.hero-compact { padding: 56px 0 32px; }

.hero-inner { max-width: 820px; }

.hero-sub {
  font-size: 18px;
  color: var(--body);
  max-width: 640px;
}

.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;
  margin-bottom: 20px;
}

.updated {
  color: var(--muted);
  font-size: 13px;
  margin-top: 8px;
}

.section { padding: 64px 0; }
.section-alt { background: var(--canvas-soft); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }

.prose { font-size: 16px; color: var(--body); max-width: 720px; }

.lead-figure { margin: 0 0 32px; }

.lead-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  display: block;
}

figcaption {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
}

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

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 24px;
}

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

.card-link {
  display: inline-block;
  margin-top: 8px;
  font-weight: 500;
  font-size: 14px;
}

.defs { display: grid; grid-template-columns: 160px 1fr; gap: 12px 24px; margin: 0; }
.defs dt { color: var(--ink); font-weight: 600; }
.defs dd { margin: 0; color: var(--body); }

.ref-list, .bullets { padding-left: 20px; max-width: 720px; }
.ref-list li, .bullets li { margin-bottom: 8px; }

.steps { padding-left: 20px; max-width: 720px; }
.steps li { margin-bottom: 10px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 24px;
  font-size: 15px;
}

.data-table th, .data-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--hairline);
}

.data-table thead th {
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid var(--hairline-strong);
}

.callout {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--primary);
  border-radius: var(--r-md);
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--body);
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 24px 0;
}

.compare-col {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 24px;
}

.form { max-width: 560px; }

.form-row { margin-bottom: 16px; display: flex; flex-direction: column; }

.form-row label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-row input, .form-row textarea {
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-md);
  padding: 12px 16px;
  font: inherit;
  color: var(--ink);
}

.form-row textarea { min-height: 96px; resize: vertical; }

.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-row input.invalid, .form-row textarea.invalid { border-color: var(--error); }

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  cursor: pointer;
}

.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  cursor: pointer;
}

.form-status { font-size: 14px; margin-top: 12px; min-height: 20px; }
.form-status.success { color: var(--success); }
.form-status.error { color: var(--error); }

.footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 48px 0 32px;
  margin-top: 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-brand { color: var(--ink); font-weight: 600; font-size: 16px; }
.footer-note { font-size: 14px; color: var(--body); margin-top: 8px; }
.footer-head { display: block; color: var(--ink); font-weight: 600; font-size: 14px; margin-bottom: 12px; }
.footer-link { display: block; color: var(--body); font-size: 14px; text-decoration: none; margin-bottom: 8px; }
.footer-link:hover { color: var(--primary); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  color: var(--muted);
}

.cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 100;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-lg);
}

.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.cookie-text { font-size: 14px; color: var(--body); margin: 0; }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }

@media (max-width: 1024px) {
  .card-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  h1 { font-size: 32px; letter-spacing: -1px; }
  h2 { font-size: 26px; }
  .nav-menu {
    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-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .card-grid { grid-template-columns: 1fr; }
  .compare { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .defs { grid-template-columns: 1fr; }
  .cookie-inner { flex-direction: column; align-items: stretch; }
}