:root {
  --bg: #ffffff;
  --bg-soft: #f8f9fa;
  --border: #e5e9ee;
  --text: #262b33;
  --text-muted: #636b78;
  --primary: #a8fbd3;
  --primary-strong: #8ae5b8;
  --accent: #637ab9;
  --accent-hover: #4a5a8a;
  --code-bg: #f1f3f5;
  --shadow: 0 2px 8px rgba(20, 30, 45, 0.08);
  --shadow-lifted: 0 8px 24px rgba(20, 30, 45, 0.12);
  --radius: 8px;
  --max-width: 960px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-hover);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--primary);
  color: var(--text);
  padding: 0.75rem 1rem;
  z-index: 100;
  border-radius: 0 0 6px 0;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
  top: 0;
}

header.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
}

.site-header nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--text);
}

.brand:hover {
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--accent);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

h1 {
  font-size: 2.25rem;
  margin-top: 0;
  color: var(--text);
}

h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  color: var(--text);
}

h1:first-child + h2,
main > h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

p {
  color: var(--text);
}

.tagline {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent);
  max-width: 42em;
  margin: 0.75rem 0 1.5rem;
  line-height: 1.5;
}

.lede {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 42em;
}

.cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  cursor: pointer;
  font-size: 1rem;
}

.button-primary {
  background: var(--primary);
  color: #163b28;
}

.button-primary:hover {
  background: var(--primary-strong);
  color: #163b28;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lifted);
}

.button-secondary {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
}

.button-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin-top: 0;
  color: var(--text);
}

.card p {
  color: var(--text-muted);
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

code {
  padding: 0.15em 0.4em;
  font-size: 0.9em;
  color: var(--text);
}

pre {
  padding: 1rem;
  overflow-x: auto;
}

pre code {
  border: none;
  padding: 0;
  background: none;
}

.download-placeholder {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  text-decoration: none;
  cursor: not-allowed;
  background: var(--bg-soft);
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  margin-left: 0.5rem;
}

ol.steps {
  padding-left: 1.25rem;
}

ol.steps li {
  margin-bottom: 0.75rem;
}

.callout {
  background: var(--bg-soft);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.callout strong {
  color: var(--text);
}

.callout.callout-motivation {
  border-left-color: var(--primary-strong);
  font-size: 1.05rem;
}

.faq-item {
  margin-bottom: 1.75rem;
}

.faq-item h2 {
  font-size: 1.15rem;
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.faq-item p {
  color: var(--text-muted);
}

footer.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer.site-footer .footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

footer.site-footer a {
  color: var(--text-muted);
}

footer.site-footer a:hover {
  color: var(--accent);
}

@media (max-width: 600px) {
  h1 {
    font-size: 1.75rem;
  }

  .tagline {
    font-size: 1.1rem;
  }
}