:root {
  --bg: #10140f;
  --panel: #171d16;
  --line: #2c3828;
  --fg: #e4ecdf;
  --muted: #8f9d88;
  --accent: #b7f071;
  --warn: #e0b35a;
  --danger: #e07a6a;
  --font-brand: "Space Grotesk", system-ui, sans-serif;
  --font-display: "Newsreader", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--fg);
  font-family: var(--font-display);
  background:
    radial-gradient(900px 500px at 0% 0%, rgba(183,240,113,.12), transparent 55%),
    radial-gradient(700px 400px at 100% 0%, rgba(224,179,90,.08), transparent 45%),
    linear-gradient(180deg, #141a12 0%, var(--bg) 50%);
  min-height: 100vh;
}

.hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  align-items: end;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(183,240,113,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(183,240,113,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 20%, transparent 95%);
}
.hero-copy {
  position: relative;
  padding: clamp(2rem, 6vw, 4.5rem);
  max-width: 40rem;
}
.brand {
  margin: 0;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: clamp(3rem, 10vw, 5.8rem);
  letter-spacing: -.04em;
  line-height: .9;
  color: var(--accent);
}
.hero h1 {
  margin: .8rem 0 1rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  max-width: 16ch;
  line-height: 1.2;
}
.lede {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 34ch;
}
.cta-row { display: flex; gap: .7rem; flex-wrap: wrap; }
.cta {
  font-family: var(--font-brand);
  text-decoration: none;
  color: var(--bg);
  background: var(--accent);
  padding: .7rem 1.1rem;
  border: 1px solid var(--accent);
}
.cta.ghost { background: transparent; color: var(--accent); }

.layout {
  display: grid;
  grid-template-columns: 1.25fr .85fr;
  gap: 1rem;
  padding: 1.25rem clamp(1rem, 4vw, 2.5rem) 2rem;
  align-items: start;
}
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .hero { min-height: 62vh; }
}

.term {
  border: 1px solid var(--line);
  background: var(--panel);
  min-height: 28rem;
  display: flex;
  flex-direction: column;
}
.term-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .55rem .8rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--muted);
}
.transcript {
  flex: 1;
  padding: .9rem 1rem;
  font-family: var(--font-mono);
  font-size: .84rem;
  line-height: 1.45;
  display: grid;
  gap: .85rem;
  align-content: start;
}
.bubble {
  border-left: 3px solid var(--line);
  padding-left: .7rem;
  white-space: pre-wrap;
}
.bubble.user { border-color: var(--accent); }
.bubble.agent { border-color: var(--warn); }
.bubble.error { border-color: var(--danger); color: #f0c4bc; }

.cli-form {
  display: grid;
  grid-template-columns: 8.5rem 1fr auto;
  gap: .45rem;
  padding: .7rem;
  border-top: 1px solid var(--line);
}
@media (max-width: 700px) {
  .cli-form { grid-template-columns: 1fr; }
}
.cli-form input, .cli-form select, .cli-form button {
  font-family: var(--font-mono);
  font-size: .86rem;
  border: 1px solid var(--line);
  background: #0d120c;
  color: var(--fg);
  padding: .65rem .7rem;
}
.cli-form button {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  cursor: pointer;
  font-family: var(--font-brand);
}
.hint {
  margin: 0;
  padding: 0 .8rem .8rem;
  color: var(--muted);
  font-size: .85rem;
}
.hint code { font-family: var(--font-mono); color: var(--accent); }

.tracker {
  border: 1px solid var(--line);
  background: rgba(23,29,22,.9);
  padding: 1rem 1.05rem 1.2rem;
}
.tracker h2, .tracker h3 {
  margin: 0 0 .4rem;
  font-family: var(--font-brand);
  letter-spacing: -.02em;
}
.tracker h3 { margin-top: 1rem; font-size: 1rem; color: var(--muted); }
.snap {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--muted);
  display: grid;
  gap: .25rem;
}
.events {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .4rem;
}
.events li {
  border-bottom: 1px solid var(--line);
  padding: .35rem 0;
  font-size: .82rem;
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: .5rem;
}
.events time { font-family: var(--font-mono); color: var(--muted); font-size: .72rem; }
.fold { margin-top: .8rem; }
.fold summary { cursor: pointer; color: var(--accent); font-family: var(--font-brand); }
.fold pre {
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--muted);
  margin: .5rem 0 0;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem clamp(1rem, 4vw, 2.5rem) 1.4rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .85rem;
  font-family: var(--font-mono);
}