:root {
  --bg-top: #f6e4c8;
  --bg-mid: #c7aa81;
  --bg-bottom: #2f3f39;
  --panel: rgba(20, 26, 24, 0.78);
  --panel-border: rgba(255, 242, 221, 0.14);
  --text-main: #fff1d7;
  --text-soft: rgba(255, 242, 221, 0.72);
  --accent: #f2bf79;
  --shadow: rgba(8, 10, 10, 0.34);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(255, 244, 212, 0.94), rgba(255, 244, 212, 0) 33%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-mid) 42%, var(--bg-bottom) 100%);
  color: var(--text-main);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
}

.page-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.page-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 16% 14%, rgba(255, 245, 213, 0.24), transparent 24%),
    radial-gradient(circle at 82% 20%, rgba(40, 63, 53, 0.18), transparent 30%),
    linear-gradient(180deg, rgba(255, 245, 213, 0.04), rgba(10, 17, 15, 0.18));
  pointer-events: none;
}

.scene-root {
  position: absolute;
  inset: 0;
}

.scene-root canvas {
  display: block;
}

.topbar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 5;
  display: flex;
  justify-content: flex-end;
}

.panel-toggle {
  border: 1px solid rgba(255, 245, 226, 0.12);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  box-shadow: 0 1rem 2.5rem var(--shadow);
  padding: 0.65rem 0.95rem;
  background: rgba(23, 30, 27, 0.8);
  color: var(--text-main);
  font: inherit;
  cursor: pointer;
}

.control-dock {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 5;
  width: min(26rem, calc(100vw - 2rem));
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 1.3rem;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 1.3rem 3rem var(--shadow);
  transition: transform 180ms ease, opacity 180ms ease;
}

.control-dock.is-collapsed {
  transform: translateY(calc(100% - 3.5rem));
}

.dock-header {
  margin-bottom: 0.9rem;
}

.dock-kicker {
  margin: 0;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.68rem;
}

.dock-title {
  margin: 0.35rem 0 0;
  font-size: 1.05rem;
  color: var(--text-main);
}

.control-section + .control-section {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 242, 221, 0.08);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.75rem;
  font-size: 0.88rem;
  color: var(--text-soft);
}

.section-head button,
.action-row button,
.panel-toggle {
  border: 0;
  border-radius: 999px;
  background: rgba(255, 246, 226, 0.14);
  color: var(--text-main);
  font: inherit;
}

.control-grid {
  display: grid;
  gap: 0.72rem;
}

.control-field {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.42rem 0.75rem;
  align-items: center;
  color: var(--text-soft);
  font-size: 0.88rem;
}

.control-field input[type="range"] {
  grid-column: 1 / 2;
  width: 100%;
  accent-color: var(--accent);
}

.control-field strong {
  color: var(--text-main);
  font-size: 0.84rem;
}

.control-field-number {
  grid-template-columns: 1fr;
}

.control-field-number input {
  width: 100%;
  margin-top: 0.2rem;
  border: 1px solid rgba(255, 242, 221, 0.12);
  border-radius: 0.85rem;
  padding: 0.68rem 0.8rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  font: inherit;
}

.toggle-row,
.action-row {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.9rem;
  flex-wrap: wrap;
}

.toggle-chip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.58rem 0.78rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-soft);
  font-size: 0.85rem;
}

.toggle-chip input {
  accent-color: var(--accent);
}

.action-row button,
.section-head button {
  padding: 0.62rem 0.95rem;
  cursor: pointer;
}

@media (max-width: 640px) {
  .topbar {
    top: 0.8rem;
    right: 0.8rem;
  }

  .control-dock {
    left: 0.8rem;
    right: 0.8rem;
    width: auto;
    bottom: 0.8rem;
  }
}