:root {
  color-scheme: dark;
  --bg: #0d1113;
  --panel: #171c1f;
  --panel-strong: #20282c;
  --ink: #eef1ea;
  --muted: #a5aea9;
  --line: #303b40;
  --accent: #d28a52;
  --blue: #6daab8;
  --red: #c86958;
  --green: #90b96f;
  --gold: #d0ad63;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    var(--bg);
  background-size: 34px 34px;
  color: var(--ink);
  margin: 0;
}

.hero,
.lab-shell {
  margin: 0 auto;
  width: min(1560px, calc(100vw - 36px));
}

.hero {
  align-items: end;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 34px 0 18px;
}

h1,
h2,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 5.2rem);
  line-height: 0.98;
  margin-bottom: 14px;
}

h2 {
  font-size: 1.6rem;
  line-height: 1.1;
  margin-bottom: 8px;
}

.hero p,
.panel-copy p,
.muted {
  color: var(--muted);
  line-height: 1.55;
}

.hero p {
  max-width: 960px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

code {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  padding: 0.05rem 0.24rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

a,
button {
  border: 1px solid var(--line);
  color: var(--ink);
  font: inherit;
  text-decoration: none;
}

a {
  color: var(--accent);
  font-weight: 760;
  padding: 10px 12px;
}

.lab-shell {
  display: grid;
  gap: 18px;
  grid-template-columns: 340px minmax(0, 1fr);
  padding-bottom: 36px;
}

.sidebar {
  display: grid;
  gap: 14px;
  align-content: start;
}

.control-card,
.workbench {
  background: rgba(23, 28, 31, 0.96);
  border: 1px solid var(--line);
}

.control-card {
  padding: 16px;
}

label {
  color: var(--muted);
  display: grid;
  font-size: 0.73rem;
  font-weight: 780;
  gap: 7px;
  letter-spacing: 0.07em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

select {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  color: var(--ink);
  font: inherit;
  padding: 9px;
}

input[type="range"] {
  accent-color: var(--accent);
  width: 100%;
}

.button-row {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 1fr;
}

button {
  background: var(--panel-strong);
  cursor: pointer;
  padding: 10px;
}

button:hover,
.tab.active {
  border-color: var(--accent);
}

.stats {
  display: grid;
  gap: 8px;
}

.stat {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  padding: 11px;
}

.stat span {
  color: var(--muted);
  display: block;
  font-size: 0.68rem;
  font-weight: 820;
  letter-spacing: 0.08em;
  margin-bottom: 5px;
  text-transform: uppercase;
}

.stat strong {
  font-size: 1.06rem;
}

.workbench {
  min-width: 0;
  padding: 14px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

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

.tab.active {
  color: var(--ink);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.panel-copy {
  align-items: end;
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 0.8fr) minmax(240px, 0.55fr);
  margin-bottom: 14px;
}

canvas,
.three-host {
  background: #07090a;
  border: 1px solid var(--line);
  display: block;
  min-height: 600px;
  width: 100%;
}

canvas {
  height: auto;
  max-width: 100%;
}

.three-host {
  overflow: hidden;
  position: relative;
}

.three-host canvas {
  border: 0;
  min-height: 0;
}

@media (max-width: 1120px) {
  .hero,
  .lab-shell,
  .panel-copy {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  nav,
  .tabs {
    display: grid;
  }
}