:root {
  --bg:        #0b0d12;
  --bg-2:      #11141c;
  --bg-3:      #161a23;
  --fg:        #e6e8ee;
  --muted:     #8a8f9a;
  --border:    rgba(255,255,255,0.08);
  --accent:    #7c5cff;
  --accent-2:  #2dd4bf;
  --warn:      #fbbf24;
  --code-bg:   #0d1018;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg);
             font-family: -apple-system, "Segoe UI", "Inter", Roboto, sans-serif;
             -webkit-font-smoothing: antialiased; line-height: 1.5; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

nav.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 32px; max-width: 1200px; margin: 0 auto;
}
nav.top .logo { font-weight: 700; letter-spacing: -0.02em; font-size: 1.15rem; }
nav.top .logo span { color: var(--accent); }
nav.top .links a { color: var(--muted); margin-left: 22px; font-size: 0.92rem; }
nav.top .links a:hover { color: var(--fg); text-decoration: none; }

.wrap { max-width: 920px; margin: 0 auto; padding: 0 32px; }
.wrap-wide { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.1; letter-spacing: -0.02em;
  margin: 32px 0 14px;
}
h1 .accent { color: var(--accent); }
h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  margin: 56px 0 14px; letter-spacing: -0.01em;
}
h3 {
  font-size: 1.05rem; margin: 24px 0 8px;
  color: var(--fg);
}
.lede {
  color: var(--muted); font-size: 1.1rem; margin: 0 0 24px; max-width: 720px;
}

.crumbs {
  font-size: 0.85rem; color: var(--muted);
  margin: 24px 0 0;
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--fg); text-decoration: underline; }

.steps { counter-reset: step; padding: 0; list-style: none; margin: 24px 0; }
.steps > li {
  counter-increment: step;
  padding: 18px 0 18px 56px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 18px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.95rem;
}
.steps > li:last-child { border-bottom: none; }
.steps > li > h3:first-child { margin: 4px 0 8px; font-size: 1.1rem; }
.steps > li p { color: var(--muted); margin: 8px 0; }
.steps > li p strong { color: var(--fg); font-weight: 500; }

pre.code, pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  font-family: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.55;
  margin: 12px 0;
  color: #d4d8df;
}
pre .c  { color: #6b7280; }     /* comment */
pre .k  { color: #c084fc; }     /* keyword */
pre .s  { color: #86efac; }     /* string */
pre .n  { color: #fbbf24; }     /* number / id */
pre .v  { color: #38bdf8; }     /* variable */

code:not(pre code) {
  background: rgba(124,92,255,0.12);
  border: 1px solid rgba(124,92,255,0.25);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.87em;
  color: #c4b5fd;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px; margin: 32px 0;
}
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 22px 18px;
  display: flex; flex-direction: column;
  transition: transform .15s, border-color .15s;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); text-decoration: none; }
.card .badge {
  display: inline-block;
  background: rgba(124,92,255,0.15);
  color: var(--accent);
  border: 1px solid rgba(124,92,255,0.4);
  padding: 4px 10px;
  border-radius: 99px;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 12px;
  align-self: flex-start;
}
.card h3 {
  margin: 0 0 8px; font-size: 1.15rem;
  color: var(--fg);
}
.card p { color: var(--muted); font-size: 0.92rem; margin: 0 0 16px; flex: 1; }
.card .arrow {
  color: var(--accent-2); font-weight: 600; font-size: 0.92rem;
  align-self: flex-start;
}

.callout {
  background: var(--bg-3);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 14px 16px;
  margin: 20px 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.callout.warn { border-left-color: var(--warn); }
.callout strong { color: var(--fg); font-weight: 600; }

footer {
  max-width: 1200px; margin: 80px auto 32px;
  padding: 24px 32px;
  border-top: 1px solid var(--border);
  color: var(--muted); font-size: 0.85rem;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

@media (max-width: 700px) {
  nav.top { padding: 14px 18px; }
  nav.top .links a { margin-left: 14px; font-size: 0.85rem; }
  .wrap, .wrap-wide { padding: 0 18px; }
  .steps > li { padding-left: 50px; }
  .steps > li::before { width: 32px; height: 32px; font-size: 0.85rem; }
}