:root {
  --bg: #080c15;
  --surface: #0e1420;
  --surface-hover: #131a28;
  --border: #1a2235;
  --text: #e8ecf4;
  --text-secondary: #8892a8;
  --text-dim: #4a5568;
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.07);
  --cyan-glow: rgba(34, 211, 238, 0.15);
  --display: 'Bricolage Grotesque', sans-serif;
  --body: 'Karla', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.7; }

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.r1 { animation-delay: 0.05s; }
.r2 { animation-delay: 0.15s; }
.r3 { animation-delay: 0.3s; }

/* Outer shell */
.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 640px) {
  .shell { padding: 0 1.25rem; }
}

/* Header */
header {
  padding: 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.logo {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text) !important;
}

header nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

header nav a {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

header nav a:hover { color: var(--text); opacity: 1; }
header nav a.active { color: var(--cyan); }

.nav-cta {
  color: var(--cyan) !important;
  font-weight: 500;
}

/* Docs layout */
.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0;
  min-height: calc(100vh - 80px);
}

/* Sidebar */
.sidebar {
  border-right: 1px solid var(--border);
  padding: 2.5rem 0 2.5rem 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-section {
  margin-bottom: 2rem;
}

.sidebar-heading {
  font-family: var(--display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0 1.5rem;
  margin-bottom: 0.5rem;
}

.sidebar nav a {
  display: block;
  padding: 0.4rem 1.5rem;
  font-size: 0.83rem;
  color: var(--text-secondary);
  transition: color 0.15s, background 0.15s;
  border-left: 2px solid transparent;
}

.sidebar nav a:hover {
  color: var(--text);
  opacity: 1;
}

.sidebar nav a.active {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--cyan-dim);
}

/* Main content */
.docs-main {
  padding: 2.5rem 3rem 4rem;
  max-width: 780px;
}

@media (max-width: 768px) {
  .docs-layout { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
  }
  .docs-main { padding: 2rem 0 3rem; }
}

/* Typography */
.page-title {
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.page-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 3rem;
  line-height: 1.7;
  max-width: 560px;
}

h2 {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 3rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  scroll-margin-top: 2rem;
}

h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

h3 {
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 600;
  margin: 1.8rem 0 0.5rem;
}

p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

p strong {
  color: var(--text);
  font-weight: 600;
}

ul, ol {
  padding-left: 1.4rem;
  margin-bottom: 1rem;
}

li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 0.2rem;
}

li strong {
  color: var(--text);
  font-weight: 600;
}

/* Code */
code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  color: var(--cyan);
}

pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1rem 0 1.5rem;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.7;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.85rem;
}

th {
  text-align: left;
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: top;
  line-height: 1.6;
}

td:first-child {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--cyan);
  white-space: nowrap;
}

tr:last-child td { border-bottom: none; }

/* Callout / note box */
.note {
  background: var(--cyan-dim);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  margin: 1.2rem 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.note strong {
  color: var(--cyan);
  font-weight: 600;
}

/* Step list */
.step-list {
  list-style: none;
  padding: 0;
  counter-reset: steps;
}

.step-list li {
  counter-increment: steps;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 1rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.step-list li:first-child { border-top: 1px solid var(--border); }

.step-list li::before {
  content: counter(steps, decimal-leading-zero);
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-dim);
  padding-top: 0.15rem;
}

/* Command cards */
.cmd-grid {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin: 1rem 0 1.5rem;
}

.cmd-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  background: var(--surface);
  transition: background 0.2s;
}

.cmd-row:hover { background: var(--surface-hover); }

.cmd-name {
  padding: 0.9rem 1.1rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--cyan);
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
}

.cmd-desc {
  padding: 0.9rem 1.1rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: flex;
  align-items: center;
}

/* Docs index cards */
.doc-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 2rem;
}

.doc-card {
  background: var(--surface);
  padding: 1.6rem;
  transition: background 0.2s;
  text-decoration: none;
  display: block;
  color: inherit;
}

.doc-card:hover { background: var(--surface-hover); opacity: 1; }

.doc-card-title {
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.doc-card-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 600px) {
  .doc-cards { grid-template-columns: 1fr; }
  .cmd-row { grid-template-columns: 130px 1fr; }
}

/* Footer */
footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0;
}

footer a {
  color: var(--text-dim);
  font-size: 0.75rem;
}

footer a:hover { color: var(--text-secondary); }
