:root {
  --bg: #f7f3ec;
  --ink: #2f2a24;
  --panel: #fffaf2;
  --accent: #7a5b3d;
  --ok: #1f7a43;
  --bad: #a1352f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #fffdf8, var(--bg));
}

.app {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  margin: 0 0 6px;
  font-size: 1.35rem;
}

h2 {
  margin: 0 0 10px;
  font-size: 1rem;
}

p {
  margin: 0 0 14px;
}

.camera-wrap {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #ddd;
  aspect-ratio: 3 / 4;
}

video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.reticle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 70px;
  height: 70px;
  transform: translate(-50%, -50%);
  border: 3px solid #fff;
  border-radius: 10px;
  box-shadow: 0 0 0 200vmax rgba(0, 0, 0, 0.1);
}

.controls {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

button:disabled {
  opacity: 0.55;
}

.panel {
  margin-top: 12px;
  background: var(--panel);
  border: 1px solid #eadfcd;
  border-radius: 12px;
  padding: 12px;
}

.sample-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}

.swatch {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid #bbb;
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 8px;
}

.chip {
  border-radius: 8px;
  padding: 6px;
  text-align: center;
  font-size: 12px;
  border: 1px solid #d9cfbf;
  background: #fff;
}

.chip-color {
  height: 26px;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  margin-bottom: 4px;
}

.ok {
  color: var(--ok);
  font-weight: 700;
}

.bad {
  color: var(--bad);
  font-weight: 700;
}