:root {
  --bg: #0F1624;
  --surface: #17202F;
  --border: #27334A;
  --text: #F5F5F5;
  --text-muted: #9BA3B4;
  --primary: #00D1B2;
  --danger: #FF6B6B;
  --warning: #FFBE0B;
  --max-w: 760px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px 20px 80px;
}

header.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

header.site-header .brand {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

header.site-header nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
  font-size: 14px;
}

header.site-header nav a {
  color: var(--text-muted);
}
header.site-header nav a:hover { color: var(--primary); text-decoration: none; }

h1 {
  font-size: 32px;
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 36px 0 12px;
  color: var(--text);
}

h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 24px 0 8px;
  color: var(--text);
}

p, li {
  color: var(--text);
}

.muted {
  color: var(--text-muted);
  font-size: 14px;
}

.lede {
  color: var(--text-muted);
  font-size: 17px;
  margin: 0 0 24px;
}

ul { padding-left: 20px; }
li { margin-bottom: 6px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 20px 0;
}

.card.accent {
  border-left: 3px solid var(--primary);
}

.card.warning {
  border-left: 3px solid var(--warning);
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 28px 0;
}
@media (min-width: 640px) {
  .cards-grid { grid-template-columns: 1fr 1fr; }
}

.cards-grid a.card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}
.cards-grid a.card:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}
.cards-grid .card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.cards-grid .card-desc {
  font-size: 14px;
  color: var(--text-muted);
}

.step-list {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 20px 0;
}
.step-list li {
  counter-increment: step;
  padding: 14px 16px 14px 52px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  position: relative;
}
.step-list li::before {
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 14px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary);
  color: #0F1624;
  font-weight: 800;
  text-align: center;
  line-height: 26px;
  font-size: 13px;
}

code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 14px;
  color: var(--primary);
  font-family: "SF Mono", Consolas, Monaco, monospace;
}

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

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

.logo-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  display: inline-block;
}

.logo-img {
  height: 32px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
}