:root {
  --bg: #081019;
  --panel: rgba(11, 22, 31, 0.92);
  --panel-border: rgba(133, 190, 219, 0.14);
  --text: #eaf6fc;
  --muted: #98afbf;
  --accent: #5de2c6;
  --accent-2: #12caa3;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "IBM Plex Sans", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(93, 226, 198, 0.2), transparent 26%),
    linear-gradient(140deg, #040b12 0%, #081019 42%, #07111b 100%);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
}

p {
  margin: 0;
}

.topbar {
  padding: 20px;
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.muted {
  color: var(--muted);
}

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

.btn {
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 14px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #03231e;
  font-weight: 700;
  border: none;
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.03);
}

.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
}

.sidebar {
  position: sticky;
  top: 12px;
  align-self: start;
  max-height: calc(100vh - 24px);
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 12px;
  display: grid;
  gap: 10px;
}

.sidebar input {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 12px;
}

#doc-nav {
  display: grid;
  gap: 6px;
}

#doc-nav a {
  color: var(--muted);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 0.9rem;
}

#doc-nav a:hover,
#doc-nav a.active {
  color: var(--text);
  border-color: rgba(93, 226, 198, 0.32);
  background: rgba(93, 226, 198, 0.08);
}

.content {
  display: grid;
  gap: 14px;
}

.doc-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 14px;
  display: grid;
  gap: 10px;
}

.doc-card ul,
.doc-card ol {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.embed-wrap {
  width: 100%;
  min-height: 620px;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  overflow: hidden;
}

.embed-wrap iframe {
  width: 100%;
  min-height: 620px;
  border: 0;
  background: #05101a;
}

.code-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 10px;
}

.code-grid article {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 8px;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  font-size: 0.82rem;
  color: var(--muted);
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    max-height: none;
  }
}