:root {
  --bg: #0b0d12;
  --bg-alt: #11141b;
  --surface: #161a23;
  --border: #232836;
  --text: #e6e8ee;
  --muted: #9aa3b5;
  --accent: #6c8cff;
  --accent-2: #9b6cff;
  --radius: 12px;
  --max: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 18, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo span { color: var(--accent); }

nav { display: flex; align-items: center; gap: 28px; }

nav a:not(.btn) { color: var(--muted); font-size: 0.95rem; transition: color 0.2s; }
nav a:not(.btn):hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 600;
  transition: transform 0.15s, opacity 0.15s;
}

.btn:hover { transform: translateY(-1px); opacity: 0.92; }

.btn-small { padding: 8px 16px; font-size: 0.9rem; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--muted); }

/* Hero */
.hero {
  padding: 120px 0 100px;
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(108, 140, 255, 0.18), transparent),
    radial-gradient(500px 300px at 90% 20%, rgba(155, 108, 255, 0.12), transparent);
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  margin-bottom: 16px;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

h2 {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

h3 { font-size: 1.1rem; margin-bottom: 8px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card p { color: var(--muted); }

.card p a, .about p a { color: var(--accent-2); }
.card p a:hover, .about p a:hover { text-decoration: underline; }

.pill {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(155, 108, 255, 0.18);
  color: var(--accent-2);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  vertical-align: middle;
}

/* Steps */
.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.steps li { counter-increment: step; }

.steps li::before {
  content: "0" counter(step);
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}

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

/* About & contact */
.about p, .contact p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 680px;
}

.contact p { margin-bottom: 32px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  nav a:not(.btn) { display: none; }
  .hero { padding: 80px 0 64px; }
  .section { padding: 64px 0; }
}

/* Article / sub pages */
.prose { max-width: 760px; }
.prose h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); margin-bottom: 8px; }
.prose h2 { font-size: 1.4rem; margin: 40px 0 12px; }
.prose h3 { font-size: 1.15rem; margin: 28px 0 8px; }
.prose h4 { font-size: 1rem; margin: 24px 0 8px; }
.prose p, .prose li { color: var(--muted); margin-bottom: 16px; }
.prose ul { padding-left: 24px; margin-bottom: 16px; }
.prose a { color: var(--accent-2); }
.prose a:hover { text-decoration: underline; }
.prose .meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 32px; }
.prose .crumb { font-size: 0.9rem; margin-bottom: 24px; }
.prose figure { margin: 24px 0; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius); background: #fff; }
.prose figcaption { color: var(--muted); font-size: 0.85rem; margin-top: 8px; font-style: italic; }
.prose pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  margin-bottom: 16px;
  font-size: 0.85rem;
}
.post-list { list-style: none; }
.post-list li { margin-bottom: 32px; }
.post-list h2 { margin: 0 0 8px; }