:root {
  --bg-obsidian: #07060a;
  --surface-hud: rgba(15, 12, 19, 0.78);
  --surface-elevated: rgba(28, 22, 34, 0.88);
  --border-hud: rgba(255, 168, 92, 0.18);
  --text-primary: #f6efe9;
  --text-muted: rgba(246, 239, 233, 0.60);
  --accent: #ff7a1a;
  --accent-soft: rgba(255, 122, 26, 0.20);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-obsidian);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

.stage-wrap {
  position: relative;
  width: 100vw;
  height: 100vh;
}

#scene-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.hud-top {
  position: fixed;
  top: 1.25rem;
  left: 1.5rem;
  right: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  pointer-events: none;
  z-index: 10;
}

.title-block {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.title-block h1 {
  font-size: 1.25rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  pointer-events: auto;
}

.divider {
  width: 1px;
  height: 1.25rem;
  background: var(--border-hud);
  margin: 0 0.125rem;
}

.chip {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: var(--surface-hud);
  border: 1px solid var(--border-hud);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.5rem 0.875rem;
  border-radius: 6px;
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: border-color 140ms ease, color 140ms ease, background-color 140ms ease;
}

.chip:hover {
  color: var(--text-primary);
  border-color: rgba(255, 168, 92, 0.45);
}

.chip:focus-visible,
.tool-btn:focus-visible,
.mini-pill:focus-visible,
.action-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.chip.is-active {
  color: var(--text-primary);
  background: var(--accent-soft);
  border-color: var(--accent);
}

.chip-cta {
  color: #fff6ee;
  background: rgba(255, 122, 26, 0.26);
  border-color: rgba(255, 138, 43, 0.68);
  font-weight: 600;
}

.chip-cta.is-active {
  background: var(--accent);
  color: #120904;
  border-color: var(--accent);
}

/* Studio Carving Dock */
.studio-dock {
  position: fixed;
  top: 5rem;
  left: 1.5rem;
  width: 17.5rem;
  background: var(--surface-hud);
  border: 1px solid var(--border-hud);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  backdrop-filter: blur(16px);
  z-index: 12;
}

.studio-dock[hidden] {
  display: none;
}

.dock-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dock-section[hidden] {
  display: none;
}

.dock-label {
  font-size: 0.625rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.375rem;
}

.tool-btn {
  appearance: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.5rem 0.25rem;
  background: var(--surface-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.6875rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 120ms ease, color 120ms ease, background-color 120ms ease;
}

.tool-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 168, 92, 0.36);
}

.tool-btn.is-active {
  color: var(--text-primary);
  background: var(--accent-soft);
  border-color: var(--accent);
}

.slider-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mirror-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.6875rem;
  color: var(--text-primary);
  cursor: pointer;
}

.mirror-toggle input {
  accent-color: var(--accent);
  cursor: pointer;
}

#size-slider {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

.pill-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.375rem;
}

.mini-pill {
  appearance: none;
  padding: 0.375rem 0.25rem;
  background: var(--surface-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 5px;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.6875rem;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
}

.mini-pill:hover {
  color: var(--text-primary);
  border-color: rgba(255, 168, 92, 0.35);
}

.mini-pill.is-active {
  color: var(--text-primary);
  background: var(--accent-soft);
  border-color: var(--accent);
}

.dock-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.375rem;
  padding-top: 0.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.action-btn {
  appearance: none;
  padding: 0.5rem 0.375rem;
  background: var(--surface-elevated);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
}

.action-btn:hover {
  border-color: rgba(255, 168, 92, 0.45);
}

.action-done {
  background: var(--accent);
  border-color: var(--accent);
  color: #140903;
  font-weight: 650;
}

.hud-bottom {
  position: fixed;
  bottom: 1.25rem;
  left: 1.5rem;
  right: 1.5rem;
  display: flex;
  justify-content: center;
  pointer-events: none;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  z-index: 10;
}

kbd {
  display: inline-block;
  padding: 0.125rem 0.375rem;
  margin: 0 0.125rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.6875rem;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
}

@media (max-width: 760px) {
  .hud-top {
    flex-direction: column;
    align-items: flex-start;
    top: 0.875rem;
    left: 1rem;
    right: 1rem;
  }

  .studio-dock {
    top: auto;
    bottom: 2.75rem;
    left: 0.75rem;
    right: 0.75rem;
    width: auto;
    max-height: 46vh;
    overflow-y: auto;
  }

  .hud-bottom {
    bottom: 0.75rem;
    font-size: 0.6875rem;
    text-align: center;
  }
}