@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Space+Grotesk:wght@400;500;700&display=swap');

:root {
  --bg: #090b0f;
  --surface: #10141b;
  --border: #1f2733;
  --text: #c9d4e3;
  --text-dim: #7f91a8;
  --accent: #00e2c2;
  --accent-dim: #00e2c21f;
  --warn: #ff8a3d;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Space Grotesk', sans-serif;
}

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

body {
  background: radial-gradient(circle at 10% 10%, #0f1622 0%, var(--bg) 45%);
  color: var(--text);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.8;
  min-height: 100vh;
}

#cursor {
  position: fixed;
  width: 8px;
  height: 20px;
  background: var(--accent);
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: screen;
  transition: opacity 0.1s;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 226, 194, 0.02) 2px,
    rgba(0, 226, 194, 0.02) 4px
  );
  pointer-events: none;
  z-index: 9998;
}

.post-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
  font-size: 0.85rem;
}

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

.post-nav a:hover { opacity: 0.8; }
.nav-right { color: var(--text-dim); }

.post-header { margin-bottom: 2rem; }

.post-meta {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-bottom: 1rem;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.post-meta span::before {
  content: '//';
  color: var(--accent);
  margin-right: 0.4rem;
}

.post-title {
  font-family: var(--sans);
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.8rem;
}

.post-subtitle {
  color: var(--text-dim);
  line-height: 1.7;
}

.post-body h2 {
  font-family: var(--sans);
  font-size: 1.35rem;
  color: #fff;
  margin: 2.4rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.post-body h2::before {
  content: '## ';
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 400;
}

.post-body p { margin-bottom: 1rem; }

.post-body strong {
  color: #fff;
  font-weight: 500;
}

.post-body code {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.9em;
  color: var(--accent);
}

.post-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.2rem;
  margin: 1.4rem 0;
  overflow-x: auto;
  border-radius: 4px;
  position: relative;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
}

.post-body pre::before {
  content: attr(data-lang);
  position: absolute;
  top: 0.5rem;
  right: 0.8rem;
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.2rem;
  margin: 1.4rem 0;
  background: linear-gradient(135deg, var(--accent-dim), transparent 70%), var(--surface);
  border-radius: 4px;
}

.callout-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.post-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding-top: 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.post-footer-sig {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.back-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
}

.back-link:hover { opacity: 0.8; }

@media (max-width: 640px) {
  #cursor { display: none; }
  body { font-size: 15px; }
}