:root {
  --bg: #080a0f;
  --bg-elevated: #0f131a;
  --surface: #141a24;
  --surface2: #1c2433;
  --border: #2a3348;
  --text: #eef2f8;
  --muted: #8b97ad;
  --accent: #5b9cf5;
  --accent-dim: #1e3a5f;
  --good: #3dd68c;
  --warn: #f5b83d;
  --bad: #f56565;
  --kinematic: #9b8cf8;
  --interactive: #5b9cf5;
  --map: #3dd68c;
  --font: "Instrument Sans", "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --serif: "Instrument Serif", Georgia, serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

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

.shell { max-width: 1180px; margin: 0 auto; padding: 0 1.5rem 4rem; }

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  gap: 1rem;
  flex-wrap: wrap;
}

.back { color: var(--muted); font-size: 0.85rem; }
.nav-links { display: flex; gap: 1.25rem; font-size: 0.85rem; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 900px) { .hero { grid-template-columns: 1fr; } }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.85rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.lede { color: #b8c2d4; font-size: 1.05rem; max-width: 38rem; }

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1.5rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: inherit;
  font-size: 0.88rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.btn-primary {
  background: linear-gradient(180deg, #255a9e 0%, #1e3a5f 100%);
  border-color: #3d6db3;
  color: #dceaff;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.proof-grid div {
  padding: 0.85rem;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.proof-grid dt {
  font-family: var(--mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent);
}

.proof-grid dd { font-size: 0.75rem; color: var(--muted); margin-top: 0.2rem; }

.hero-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--good);
  margin-right: 0.4rem;
  box-shadow: 0 0 8px var(--good);
}

.terminal {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  color: #9ec5ff;
  margin-bottom: 1rem;
  overflow-x: auto;
}

.terminal .prompt { color: var(--good); margin-right: 0.35rem; }

.section { padding: 2.5rem 0; }
.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 800px) { .solution-grid { grid-template-columns: 1fr; } }

.solution-card {
  padding: 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.solution-label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

.solution-card p { font-size: 0.9rem; color: #c5cede; }
.solution-card strong { color: var(--text); }

.dashboard-wrap {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
}

.toolbar {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.toolbar input[type=file] { display: none; }

.scenario-id {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.82rem;
  margin-left: auto;
}

.grid { display: grid; gap: 1rem; }
.grid-hero { grid-template-columns: 260px 1fr 1fr; }
@media (max-width: 1000px) { .grid-hero { grid-template-columns: 1fr; } }
.grid-mid { grid-template-columns: 1.2fr 0.8fr; margin-top: 1rem; }
@media (max-width: 800px) { .grid-mid { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.15rem;
}

.card h3 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.metametric {
  font-size: 2.75rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  font-family: var(--mono);
}

.metametric-label { color: var(--muted); font-size: 0.8rem; margin-top: 0.2rem; }

.bucket-row { display: flex; gap: 0.6rem; margin-top: 0.85rem; }
.bucket {
  flex: 1;
  padding: 0.65rem;
  border-radius: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
}
.bucket .val { font-family: var(--mono); font-size: 1.2rem; font-weight: 500; }
.bucket .lbl { font-size: 0.68rem; color: var(--muted); margin-top: 0.15rem; }
.bucket.kinematic .val { color: var(--kinematic); }
.bucket.interactive .val { color: var(--interactive); }
.bucket.map_based .val { color: var(--map); }

.fix-first {
  margin-top: 1rem;
  padding: 0.85rem;
  border-radius: 8px;
  background: #2a1f14;
  border: 1px solid #5c4520;
  font-size: 0.82rem;
}

.fix-first strong { color: var(--warn); }

.gates { list-style: none; }
.gates li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}
.gates li:last-child { border-bottom: none; }
.gate-pass { color: var(--good); }
.gate-fail { color: var(--bad); }

.rates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
.rate {
  text-align: center;
  padding: 0.85rem 0.4rem;
  border-radius: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
}
.rate .val { font-family: var(--mono); font-size: 1.35rem; }
.rate .lbl { font-size: 0.68rem; color: var(--muted); margin-top: 0.3rem; }
.rate.high .val { color: var(--bad); }
.rate.warn .val { color: var(--warn); }

table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
th {
  text-align: left;
  color: var(--muted);
  font-weight: 500;
  padding: 0.45rem 0.35rem;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 0.4rem 0.35rem;
  border-bottom: 1px solid #1a2030;
  font-family: var(--mono);
}
td.name { font-family: var(--font); }

.bar-bg { height: 6px; background: #1a2030; border-radius: 3px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 3px; transition: width 0.4s ease; }

.tag {
  display: inline-block;
  font-size: 0.62rem;
  padding: 0.1rem 0.38rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tag-kinematic { background: #2a2540; color: var(--kinematic); }
.tag-interactive { background: #1a2840; color: var(--interactive); }
.tag-map_based { background: #1a3028; color: var(--map); }

.cli-block {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  overflow-x: auto;
  color: #b8d4ff;
  line-height: 1.7;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}