:root {
  --colour-bg: #fafafa;
  --colour-surface: #ffffff;
  --colour-primary: #1a56db;
  --colour-primary-dark: #1444b0;
  --colour-text: #1f2937;
  --colour-text-muted: #6b7280;
  --colour-border: #e5e7eb;
  --colour-code-bg: #f3f4f6;
  --colour-hero-bg: #0f172a;
  --colour-hero-text: #f8fafc;
  --colour-accent: #22d3ee;
  --max-width: 960px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

/* — Navigation — */

nav {
  background: var(--colour-hero-bg);
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

nav .nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

nav .logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}

nav .logo img {
  height: 64px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s;
}

nav a:hover,
nav a.active {
  color: var(--colour-hero-text);
}

/* — Hero — */

.hero {
  background: var(--colour-hero-bg);
  color: var(--colour-hero-text);
  text-align: center;
  padding: 5rem 2rem 4rem;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero h1 span {
  color: var(--colour-accent);
}

.hero p {
  font-size: 1.2rem;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero .cta {
  display: inline-block;
  background: var(--colour-primary);
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.15s;
}

.hero .cta:hover {
  background: var(--colour-primary-dark);
}

.version-info {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #94a3b8;
}

.version-info a {
  color: var(--colour-accent);
  text-decoration: none;
  font-weight: 600;
}

.version-info a:hover {
  text-decoration: underline;
}

/* — Sections — */

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 2rem;
}

.section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.5rem;
}

.section p {
  margin-bottom: 1rem;
  color: var(--colour-text-muted);
}

.section p.body-text {
  color: var(--colour-text);
}

/* — Feature grid — */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-card {
  background: var(--colour-surface);
  border: 1px solid var(--colour-border);
  border-radius: 8px;
  padding: 1.5rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
  color: var(--colour-text);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--colour-text-muted);
  margin: 0;
}

/* — Supported databases — */

.db-list {
  display: flex;
  gap: 2rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.db-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.05rem;
}

.db-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--colour-primary);
}

.db-dot.coming-soon {
  background: none;
  border: 2px solid var(--colour-text-muted);
}

/* — Code blocks — */

pre {
  background: var(--colour-hero-bg);
  color: #e2e8f0;
  padding: 1.25rem 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 1rem 0 1.5rem;
}

code {
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;
}

p code {
  background: var(--colour-code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

/* — Tables — */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.95rem;
}

th, td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--colour-border);
}

th {
  font-weight: 600;
  color: var(--colour-text);
  background: var(--colour-code-bg);
}

td {
  color: var(--colour-text-muted);
}

/* — Download button — */

.download-btn {
  display: inline-block;
  background: var(--colour-primary);
  color: #fff;
  padding: 0.6rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.15s;
  margin: 0.5rem 0;
}

.download-btn:hover {
  background: var(--colour-primary-dark);
}

/* — Steps — */

.steps {
  counter-reset: step;
  margin-top: 2rem;
}

.step {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 2.5rem;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background: var(--colour-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.step h3 {
  margin-top: 0;
}

/* — Edition cards — */

.editions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.edition-card {
  background: var(--colour-surface);
  border: 1px solid var(--colour-border);
  border-radius: 8px;
  padding: 2rem 1.5rem;
  text-align: center;
}

.edition-card.highlight {
  border-color: var(--colour-primary);
  box-shadow: 0 0 0 1px var(--colour-primary);
}

.edition-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
}

.edition-card .user-count {
  font-size: 2rem;
  font-weight: 800;
  color: var(--colour-primary);
  margin: 0.75rem 0 0.25rem;
}

.edition-card .user-label {
  font-size: 0.85rem;
  color: var(--colour-text-muted);
}

.edition-card .feature-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--colour-text-muted);
}

/* — Footer — */

footer {
  border-top: 1px solid var(--colour-border);
  padding: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--colour-text-muted);
}

/* — Responsive — */

@media (max-width: 640px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1.05rem;
  }

  nav ul {
    gap: 1rem;
  }

  .step {
    padding-left: 2.5rem;
  }
}