:root {
  color-scheme: dark;
  --bg: #090b0a;
  --panel: rgba(18, 23, 20, 0.86);
  --panel-strong: rgba(24, 31, 26, 0.94);
  --line: rgba(163, 216, 165, 0.18);
  --text: #edf5e7;
  --muted: #a9b7a9;
  --green: #9de8a8;
  --amber: #f3c66e;
  --rust: #d98555;
  --blue: #8fd1d8;
  --shadow: rgba(0, 0, 0, 0.42);
}

* { box-sizing: border-box; }

html {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: 0;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, rgba(157, 232, 168, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(157, 232, 168, 0.03) 1px, transparent 1px),
    radial-gradient(circle at 18% 8%, rgba(217, 133, 85, 0.16), transparent 30%),
    radial-gradient(circle at 86% 18%, rgba(143, 209, 216, 0.12), transparent 32%),
    #090b0a;
  background-size: 44px 44px, 44px 44px, auto, auto, auto;
}

a { color: inherit; }

button,
input {
  font: inherit;
}

.pinch-header,
.pinch-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(16px, 4vw, 42px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(8, 12, 10, 0.8);
  color: var(--green);
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand small,
.pinch-nav,
.kicker,
.micro-copy,
.pinch-footer {
  color: var(--muted);
}

.pinch-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  font-size: 12px;
  font-weight: 800;
}

.pinch-nav a {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-decoration: none;
  background: rgba(8, 12, 10, 0.55);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 40px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  gap: 18px;
  align-items: end;
  padding: clamp(24px, 5vw, 62px) 0 22px;
}

.kicker {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 16px;
  font-size: clamp(42px, 7vw, 86px);
  line-height: 0.95;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(22px, 3vw, 34px);
}

.hero p span,
.notes-panel p span {
  display: block;
  margin-bottom: 6px;
}

.hero p {
  max-width: 720px;
  color: #d9e6d6;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.8;
}

.status-card,
.panel,
.notes-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 22px 70px var(--shadow);
  backdrop-filter: blur(12px);
}

.status-card {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.status-card span {
  border-bottom: 1px solid rgba(157, 232, 168, 0.14);
  padding-bottom: 8px;
  color: var(--green);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 13px;
}

.lab-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap: 18px;
  align-items: start;
}

.panel {
  padding: 16px;
}

.panel-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.canvas-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(157, 232, 168, 0.2);
  background: #020403;
  min-height: 340px;
}

#cameraVideo {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

#pinchCanvas {
  display: block;
  width: 100%;
  height: min(64vw, 620px);
  min-height: 340px;
  max-height: 640px;
  touch-action: none;
}

.canvas-badge {
  position: absolute;
  left: 14px;
  bottom: 12px;
  display: grid;
  gap: 2px;
  border: 1px solid rgba(157, 232, 168, 0.18);
  background: rgba(3, 5, 4, 0.76);
  padding: 8px 10px;
  color: var(--green);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 11px;
  pointer-events: none;
}

.canvas-badge small {
  color: var(--muted);
}

.control-stack {
  display: grid;
  gap: 18px;
}

.button-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

button {
  min-height: 42px;
  border: 1px solid rgba(157, 232, 168, 0.24);
  background: rgba(9, 13, 11, 0.92);
  color: var(--text);
  cursor: pointer;
  font-weight: 850;
}

button:hover,
button:focus-visible {
  border-color: rgba(157, 232, 168, 0.65);
  outline: none;
}

button.primary {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(157, 232, 168, 0.26), rgba(243, 198, 110, 0.16));
  color: #f9fff3;
}

button[aria-pressed="true"] {
  color: var(--green);
}

.range-row,
.select-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 42px;
  gap: 10px;
  align-items: center;
}

.select-row {
  grid-template-columns: auto minmax(0, 1fr);
  margin-bottom: 12px;
}

.select-row select {
  width: 100%;
  min-height: 40px;
  border: 1px solid rgba(157, 232, 168, 0.24);
  background: rgba(9, 13, 11, 0.92);
  color: var(--text);
  padding: 0 10px;
}

.range-row input {
  width: 100%;
  accent-color: var(--green);
}

.range-row b,
.readout-grid b {
  color: var(--green);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
}

.readout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px 14px;
  font-size: 13px;
}

.readout-grid span {
  color: var(--muted);
  text-transform: uppercase;
}

.notes-panel,
.share-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.4fr);
  gap: 20px;
  margin-top: 18px;
  padding: 18px;
}

.notes-panel p,
.share-panel p {
  margin: 0;
  color: #d7e2d2;
  line-height: 1.8;
}

.share-panel {
  grid-template-columns: minmax(190px, 0.65fr) minmax(0, 1.35fr) auto;
  align-items: center;
}

.share-panel h2 {
  font-size: 22px;
}

.share-panel button {
  min-width: 132px;
}

.guide-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.guide-card {
  border: 1px solid var(--line);
  background: rgba(16, 21, 18, 0.76);
  padding: 16px;
}

.guide-card h2 {
  margin-bottom: 10px;
  font-size: 21px;
}

.guide-card p:last-child {
  margin-bottom: 0;
  color: #d7e2d2;
  line-height: 1.75;
}

.pinch-footer {
  border-top: 1px solid var(--line);
}

.pinch-footer a {
  color: var(--green);
  text-decoration: none;
}

@media (max-width: 920px) {
  .hero,
  .lab-layout,
  .notes-panel,
  .share-panel,
  .guide-panel {
    grid-template-columns: 1fr;
  }

  .pinch-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .pinch-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  main {
    width: min(100% - 20px, 1180px);
  }

  .pinch-header,
  .pinch-footer {
    padding-inline: 10px;
  }

  .button-grid {
    grid-template-columns: 1fr;
  }

  #pinchCanvas {
    height: 440px;
    min-height: 360px;
  }

  .canvas-badge {
    right: 10px;
    left: 10px;
  }
}