:root {
  --bg: #f4f7f3;
  --surface: #ffffff;
  --text: #173222;
  --muted: #4a6457;
  --border: #d4e2d7;
  --accent: #0e8a4a;
  --accent-soft: #e6f5eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 15%, #d5f0de 0%, transparent 35%),
    radial-gradient(circle at 85% 0%, #e7efe4 0%, transparent 40%),
    var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 42px 20px 16px;
}

.badge {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--accent-soft);
  font-size: 12px;
  letter-spacing: 0.3px;
  color: #1f5538;
}

.hero h1,
.hero h2,
.card h2 {
  font-family: "Sora", "IBM Plex Sans", sans-serif;
}

.hero h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
}

.intro {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.actions a {
  text-decoration: none;
  color: #10472d;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 500;
}

main {
  margin: 0 auto;
  padding: 8px 20px 40px;
}

.landing-content {
  max-width: 1080px;
  margin: 0 auto;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  padding: 16px;
  margin-bottom: 14px;
}

.warning {
  border-color: #d9c25e;
  background: #fffbe8;
}

.warning a {
  color: #6d5a00;
  font-weight: 600;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0 0 10px;
  line-height: 1.4;
  color: var(--muted);
}

.small {
  font-size: 13px;
}

.landing-content pre {
  margin: 0;
  overflow: auto;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f8fbf8;
}

.landing-content code,
.hero code {
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 13px;
}

.api-reference {
  width: calc(100vw - 40px);
  margin: 18px calc(50% - 50vw + 20px) 0;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  overflow: hidden;
}

.reference-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: #f8fbf8;
}

.reference-toolbar h2 {
  margin: 0;
  font-size: 18px;
}

.reference-toolbar a {
  text-decoration: none;
  color: #10472d;
  font-weight: 600;
}

.api-reference iframe {
  width: 100%;
  height: 82vh;
  border: 0;
  display: block;
  background: #0b0e13;
}

@media (max-width: 760px) {
  .hero {
    padding-top: 24px;
  }

  .api-reference {
    width: calc(100vw - 20px);
    margin: 12px calc(50% - 50vw + 10px) 0;
    border-radius: 12px;
  }

  .api-reference iframe {
    height: 76vh;
  }
}