:root {
  color-scheme: dark;
  --bg: #06110c;
  --panel: rgba(11, 34, 24, 0.76);
  --panel-strong: rgba(14, 45, 31, 0.9);
  --line: rgba(156, 216, 164, 0.18);
  --text: #e9f4df;
  --muted: #9db79d;
  --accent: #b8e68f;
  --accent-2: #72c09a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(82, 153, 96, 0.18), transparent 34rem),
    linear-gradient(135deg, #06110c, #0b1f15 48%, #04100b);
  color: var(--text);
}

button, input { font: inherit; }

button {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(189, 234, 143, 0.08);
  color: var(--text);
  padding: 0.7rem 1rem;
  cursor: pointer;
}

button:hover { background: rgba(189, 234, 143, 0.16); }

.app-shell {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4rem 0 5rem;
}

.hero { max-width: 680px; margin-bottom: 2rem; }

.eyebrow {
  margin: 0 0 0.55rem;
  color: var(--accent-2);
  font-size: 0.73rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2 { margin: 0; letter-spacing: -0.04em; }

h1 { font-size: clamp(2.8rem, 8vw, 6.5rem); line-height: 0.95; }

h2 { font-size: clamp(1.6rem, 3vw, 2.6rem); }

.lede {
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.65;
}

.controls,
.stats,
.diagnostics,
.world-card,
.chronicle-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.2);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  padding: 0.8rem;
  border-radius: 1.2rem;
}

.controls label {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: auto;
  color: var(--muted);
  font-size: 0.9rem;
}

input[type="range"] { accent-color: var(--accent); }

.stats,
.diagnostics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-top: 1rem;
  border-radius: 1.2rem;
}

.diagnostics { grid-template-columns: repeat(5, 1fr); }

.stats div,
.diagnostics div {
  padding: 1rem;
  background: rgba(1, 13, 8, 0.22);
}

.stats span,
.stats strong,
.diagnostics span,
.diagnostics strong { display: block; }
.stats span,
.diagnostics span { color: var(--muted); font-size: 0.78rem; }
.stats strong,
.diagnostics strong { margin-top: 0.3rem; color: var(--accent); font-size: 1.3rem; }
.diagnostics strong { font-size: 1rem; overflow-wrap: anywhere; }

.world-card {
  height: min(62vw, 570px);
  min-height: 330px;
  margin-top: 1rem;
  overflow: hidden;
  border-radius: 1.5rem;
}

canvas { display: block; width: 100%; height: 100%; }

.chronicle-card {
  margin-top: 1rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  border-radius: 1.5rem;
}

.section-heading { margin-bottom: 1rem; }

.chronicle {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chronicle li {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  line-height: 1.5;
}

.chronicle li span {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 760px) {
  .diagnostics { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 620px) {
  .app-shell { width: min(100% - 1rem, 1100px); padding-top: 2rem; }
  .controls label { width: 100%; margin-left: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .world-card { height: 85vw; min-height: 300px; }
  .chronicle li { grid-template-columns: 4.5rem 1fr; gap: 0.6rem; }
}