:root {
  color-scheme: dark;
  --ink: #f2f2f7;
  --soft: #a3a8bf;
  --line: rgba(255, 255, 255, 0.12);
  --tone-a: #ff3d81;
  --tone-b: #3fd6ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #05050a;
  color: var(--ink);
  font: 15px/1.4 "Inter", "Avenir Next", "Segoe UI", system-ui, sans-serif;
}

#lava {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.note {
  position: fixed;
  left: 50%;
  top: 50%;
  max-width: 28rem;
  margin: 0;
  padding: 14px 16px;
  transform: translate(-50%, -50%);
  border-radius: 12px;
  border: 1px solid #97364d;
  background: rgba(90, 32, 48, 0.9);
  color: #ffd5de;
}

.panel {
  position: fixed;
  top: 16px;
  right: 16px;
  width: min(340px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(14, 16, 32, 0.62);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.panel[hidden],
.reveal[hidden] {
  display: none;
}

.panel.away {
  opacity: 0;
  transform: translateX(24px);
  pointer-events: none;
}

h1 {
  margin: 0 0 4px;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
}

header p {
  margin: 0 0 14px;
  color: var(--soft);
  font-size: 13px;
}

h2 {
  margin: 16px 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--soft);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

button {
  font: inherit;
  cursor: pointer;
}

.chip,
.buttons button,
.reveal {
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.07);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.chip:hover,
.buttons button:hover,
.reveal:hover {
  background: rgba(255, 255, 255, 0.14);
}

.chip[aria-pressed="true"] {
  color: #07131a;
  border-color: transparent;
  background: linear-gradient(90deg, var(--tone-a), var(--tone-b));
}

.swatches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px 8px;
}

.swatches label.off {
  opacity: 0.35;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
}

.toggle input {
  width: 16px;
  height: 16px;
  accent-color: var(--tone-a);
}

.swatches label {
  display: grid;
  gap: 5px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--soft);
  text-align: center;
}

input[type="color"] {
  width: 100%;
  height: 36px;
  padding: 3px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: transparent;
}

.slider {
  display: grid;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--soft);
}

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

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.hint {
  margin: 12px 0 0;
  color: var(--soft);
  font-size: 12px;
}

kbd {
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  font: inherit;
  font-size: 11px;
}

.reveal {
  position: fixed;
  top: 16px;
  right: 16px;
  opacity: 0.55;
  backdrop-filter: blur(10px);
}

.reveal:hover {
  opacity: 1;
}