:root {
  color-scheme: dark;
  --bg: #0b0e14;
  --bg2: #10141d;
  --panel: #151a26;
  --border: #232b3d;
  --text: #dbe2ee;
  --muted: #8b95a8;
  --accent: #4f8cff;
  --accent2: #7aa5ff;
  --green: #35c46a;
  --mono: 'Cascadia Code', Consolas, 'SF Mono', Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code,
pre {
  font-family: var(--mono);
  font-size: 0.92em;
}

.dim {
  color: var(--muted);
}

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

.center {
  text-align: center;
}

/* ---------- nav ---------- */

nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}

.logo:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
  font-size: 14px;
}

.nav-links a {
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.nav-cta {
  color: var(--accent2) !important;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
}

/* ---------- hero ---------- */

.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 96px 24px 64px;
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  color: var(--accent2);
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.12;
  margin: 0 0 20px;
}

.sub {
  max-width: 640px;
  margin: 0 auto 32px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
}

.btn:hover {
  text-decoration: none;
  filter: brightness(1.12);
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

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

.terminal-demo {
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 26px;
  font-size: 14px;
  line-height: 1.75;
  white-space: pre-wrap;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.cursor {
  display: inline-block;
  width: 8px;
  height: 1.05em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* ---------- sections ---------- */

section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 24px;
}

section h2 {
  text-align: center;
  font-size: 30px;
  margin: 0 0 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 17px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}

/* ---------- diagram ---------- */

.diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.node {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 32px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.node strong {
  font-size: 18px;
}

.node span {
  color: var(--muted);
  font-size: 13px;
}

.arrow {
  color: var(--accent2);
  font-size: 14px;
  text-align: center;
}

/* ---------- steps ---------- */

.steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  max-width: 720px;
  margin: 0 auto 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.steps li {
  counter-increment: step;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  position: relative;
}

.steps h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.steps h3::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
}

.steps pre {
  margin: 0;
  background: var(--bg);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
}

/* ---------- agents band ---------- */

.agents-band {
  text-align: center;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.agents-band p {
  max-width: 560px;
  margin: 0 auto 24px;
  color: var(--muted);
}

/* ---------- footer ---------- */

footer {
  text-align: center;
  padding: 48px 24px 56px;
  color: var(--muted);
  font-size: 14px;
}

.llm-note {
  font-size: 13px;
}