:root {
  --bg: #0d0d0d;
  --surface: #141414;
  --border: #222;
  --text: #e8e8e8;
  --muted: #888;
  --accent: #7c6af7;
  --green: #4ade80;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

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

code, pre { font-family: var(--font-mono); font-size: 0.875em; }

.container { max-width: 860px; margin: 0 auto; padding: 0 24px; }

/* Nav */
nav { border-bottom: 1px solid var(--border); padding: 16px 0; }
nav .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: var(--font-mono); font-weight: 700; font-size: 1.1rem; color: var(--text); }
.logo span { color: var(--accent); }
nav .links { display: flex; gap: 24px; }
nav .links a { color: var(--muted); font-size: 0.9rem; }
nav .links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { padding: 96px 0 72px; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 600px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.85; text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }

/* Terminal demo */
.demo {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin: 48px 0;
  overflow-x: auto;
}
.demo-bar { display: flex; gap: 6px; margin-bottom: 16px; }
.demo-bar span { width: 12px; height: 12px; border-radius: 50%; }
.demo-bar .r { background: #ff5f56; }
.demo-bar .y { background: #ffbd2e; }
.demo-bar .g { background: #27c93f; }
.demo pre { color: #ccc; line-height: 1.7; }
.demo .prompt { color: var(--accent); }
.demo .comment { color: #555; }
.demo .output { color: var(--green); }

/* Features */
.features { padding: 72px 0; border-top: 1px solid var(--border); }
.features h2 { font-size: 1.5rem; margin-bottom: 48px; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}
.feature-card .icon { font-size: 1.5rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1rem; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 0.9rem; }

/* Architecture */
.architecture { padding: 72px 0; border-top: 1px solid var(--border); }
.architecture h2 { font-size: 1.5rem; margin-bottom: 24px; }
.arch-diagram {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #ccc;
  line-height: 1.8;
  white-space: pre;
  overflow-x: auto;
}

/* Install */
.install { padding: 72px 0; border-top: 1px solid var(--border); }
.install h2 { font-size: 1.5rem; margin-bottom: 32px; }
.install-steps { display: flex; flex-direction: column; gap: 20px; }
.install-step { display: flex; gap: 16px; align-items: flex-start; }
.step-num {
  width: 28px; height: 28px;
  background: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700;
  flex-shrink: 0;
  color: #fff;
}
.step-body h4 { margin-bottom: 6px; }
.step-body p { color: var(--muted); font-size: 0.9rem; margin-top: 4px; }
.step-body code {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 14px;
  color: var(--green);
  margin-top: 8px;
  word-break: break-all;
}

/* Footer */
footer { border-top: 1px solid var(--border); padding: 32px 0; color: var(--muted); font-size: 0.85rem; }
footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

@media (max-width: 600px) {
  .hero { padding: 60px 0 48px; }
  nav .links { gap: 16px; }
}