:root {
  color-scheme: dark;
  --bg: #030712;
  --panel: rgba(6, 11, 22, 0.92);
  --panel-soft: rgba(10, 15, 30, 0.72);
  --accent: #7fe9ff;
  --accent-2: #ffb4ed;
  --accent-3: #a3ffa4;
  --text-strong: #f3f6ff;
  --text-soft: rgba(243, 246, 255, 0.72);
  --border: rgba(255, 255, 255, 0.08);
  --mono: "IBM Plex Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-family: "Space Grotesk", "Inter", system-ui, -apple-system, Segoe UI, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 15% 20%, rgba(127, 233, 255, 0.16), transparent 45%),
              radial-gradient(circle at 85% 10%, rgba(255, 180, 237, 0.2), transparent 40%),
              linear-gradient(135deg, #020409, #070b18 55%, #030712);
  color: var(--text-strong);
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(24px, 4vw, 64px);
}

header.site-head {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: baseline;
  margin-bottom: 32px;
}

.site-head small {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.72rem;
  color: var(--text-soft);
}

.site-head h1 {
  margin: 0;
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  letter-spacing: -0.02em;
}

.site-head p {
  flex-basis: 100%;
  margin: 6px 0 0;
  color: var(--text-soft);
  max-width: 720px;
}

nav.breadcrumbs {
  font-size: 0.9rem;
  margin-bottom: 18px;
  color: var(--text-soft);
}

nav.breadcrumbs a {
  color: var(--accent);
  text-decoration: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  padding: 22px;
  border-radius: 22px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card h2 {
  margin: 0;
  font-size: 1.35rem;
}

.card p {
  margin: 0;
  color: var(--text-soft);
}

.tagline {
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-2);
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-list li {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  background: var(--panel-soft);
}

.card a.cta {
  margin-top: auto;
  align-self: flex-start;
  text-decoration: none;
  font-weight: 600;
  color: #030712;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  padding: 10px 18px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

section.content-panel {
  margin-top: 28px;
  padding: 24px clamp(18px, 3vw, 32px);
  border-radius: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

section.content-panel h1 {
  margin-top: 0;
  font-size: clamp(2rem, 3vw, 2.6rem);
}

section.content-panel h2 {
  margin-top: 32px;
  margin-bottom: 12px;
  font-size: 1.45rem;
}

section.content-panel p {
  color: var(--text-soft);
  line-height: 1.6;
}

.bom {
  display: grid;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.bom li {
  padding: 10px 12px;
  border-radius: 16px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  font-family: var(--mono);
}

.table-wrap {
  overflow-x: auto;
  border-radius: 16px;
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

table thead {
  background: rgba(255, 255, 255, 0.05);
}

td, th {
  padding: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 18px;
}

.steps li {
  list-style: none;
  padding-left: 0;
  background: var(--panel-soft);
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 18px;
  position: relative;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -12px;
  left: -12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: #030712;
  display: grid;
  place-items: center;
  font-weight: 600;
}

code, pre {
  font-family: var(--mono);
}

pre {
  background: #010309;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  overflow-x: auto;
}

.tip {
  border-left: 4px solid var(--accent);
  padding: 12px 16px;
  background: rgba(127, 233, 255, 0.08);
  border-radius: 12px;
  margin-top: 20px;
  color: var(--text-soft);
}

a {
  color: var(--accent);
}

@media (max-width: 640px) {
  .steps li::before {
    top: -10px;
    left: 12px;
  }
}