:root {
  color-scheme: dark;
  --stage: #050608;
  --panel: #111318;
  --panel-raised: #191c22;
  --panel-hover: #20242c;
  --line: #2b3039;
  --line-strong: #454c58;
  --ink: #f4f2ea;
  --muted: #adb3bd;
  --quiet: #7f8794;
  --signal: #ff6b4a;
  --signal-ink: #1b0904;
  --focus: #77e4d4;
  --danger: #ff8a77;
  --success: #82e6b0;
  --radius: 14px;
  --radius-small: 9px;
  --z-canvas: 0;
  --z-content: 10;
  --z-toast: 30;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 320px;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--stage);
  color: var(--ink);
}

body {
  font-family: inherit;
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

button,
select {
  color: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--stage);
  background: var(--focus);
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.studio {
  position: relative;
  width: 100%;
  height: 100%;
  isolation: isolate;
}

#particle-canvas {
  position: absolute;
  inset: 0;
  z-index: var(--z-canvas);
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}

.top-bar {
  position: absolute;
  z-index: var(--z-content);
  top: max(18px, env(safe-area-inset-top));
  right: 18px;
  left: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  pointer-events: none;
}

.studio-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
  pointer-events: auto;
}

.studio-brand span {
  color: var(--muted);
  font-weight: 540;
}

.top-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
}

.status-chip {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  background: rgba(17, 19, 24, 0.94);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1;
}

.status-light {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  background: var(--quiet);
  border-radius: 50%;
}

.status-chip[data-state="ready"] .status-light,
.status-chip[data-state="hand"] .status-light {
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(130, 230, 176, 0.12);
}

.status-chip[data-state="loading"] .status-light,
.status-chip[data-state="searching"] .status-light {
  background: #ffd268;
  animation: status-pulse 1.1s ease-in-out infinite;
}

.status-chip[data-state="error"] .status-light {
  background: var(--danger);
}

.status-chip[data-state="paused"] .status-light {
  background: var(--muted);
}

.language-select {
  min-height: 36px;
  padding: 7px 30px 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  outline: none;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.78rem;
  cursor: pointer;
}

.scene-copy {
  position: absolute;
  z-index: var(--z-content);
  top: 102px;
  left: clamp(22px, 5vw, 76px);
  width: min(390px, calc(100vw - 450px));
  pointer-events: none;
}

.scene-counter {
  display: block;
  margin-bottom: 14px;
  color: var(--signal);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.scene-copy h1 {
  max-width: 9ch;
  margin: 0;
  color: var(--ink);
  font-size: 3.65rem;
  font-weight: 760;
  letter-spacing: -0.04em;
  line-height: 0.98;
  text-wrap: balance;
}

.scene-copy p {
  max-width: 36ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.65;
  text-wrap: pretty;
}

.control-dock {
  position: absolute;
  z-index: var(--z-content);
  top: 76px;
  right: 18px;
  bottom: 18px;
  display: flex;
  width: min(374px, calc(100vw - 36px));
  flex-direction: column;
  gap: 18px;
  overflow-y: auto;
  padding: 18px;
  background: rgba(17, 19, 24, 0.97);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overscroll-behavior: contain;
}

.dock-heading,
.section-heading,
.control-label,
.panel-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.dock-heading {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.dock-heading h2,
.section-heading h3,
.palette-fieldset legend,
.interaction-fieldset legend {
  margin: 0;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 720;
  letter-spacing: -0.01em;
}

.dock-heading span,
.section-heading span {
  color: var(--quiet);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
}

.scene-section,
.tuning-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scene-list {
  display: flex;
  gap: 9px;
  margin: 0 -18px;
  padding: 2px 18px 8px;
  overflow-x: auto;
  scroll-padding-inline: 18px;
  scrollbar-width: thin;
}

.scene-card {
  display: grid;
  width: 118px;
  min-width: 118px;
  gap: 7px;
  padding: 7px 7px 9px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: var(--panel-raised);
  color: var(--muted);
  cursor: pointer;
  transition: background-color 180ms ease-out, border-color 180ms ease-out, color 180ms ease-out;
}

.scene-card:hover {
  background: var(--panel-hover);
  color: var(--ink);
}

.scene-card.selected {
  border-color: var(--signal);
  color: var(--ink);
}

.scene-preview {
  display: block;
  width: 102px;
  height: 58px;
  border-radius: 7px;
  background: #090a0d;
}

.scene-card > span {
  overflow: hidden;
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tuning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
}

.control-row {
  display: grid;
  gap: 8px;
  min-width: 0;
  padding: 9px;
  border-radius: var(--radius-small);
  background: var(--panel-raised);
}

.control-row .control-label {
  display: grid;
  gap: 3px;
}

.control-label label {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 620;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.control-label output {
  overflow: hidden;
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.67rem;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

input[type="range"] {
  width: 100%;
  margin: 0;
  accent-color: var(--signal);
  cursor: pointer;
}

.palette-fieldset,
.interaction-fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.palette-fieldset legend,
.interaction-fieldset legend {
  margin-bottom: 10px;
}

.palette-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
}

.palette-option {
  display: grid;
  min-width: 0;
  gap: 6px;
  padding: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  background: var(--panel-raised);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 180ms ease-out, background-color 180ms ease-out, color 180ms ease-out;
}

.palette-option:hover {
  background: var(--panel-hover);
  color: var(--ink);
}

.palette-option[aria-pressed="true"] {
  border-color: var(--line-strong);
  color: var(--ink);
}

.palette-strip {
  display: flex;
  height: 9px;
  overflow: hidden;
  border-radius: 3px;
}

.palette-strip i {
  flex: 1;
}

.palette-option > span:last-child {
  overflow: hidden;
  font-size: 0.67rem;
  font-weight: 620;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.interaction-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  border-radius: 11px;
  background: var(--panel-raised);
}

.interaction-actions button {
  min-height: 34px;
  padding: 6px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 650;
  cursor: pointer;
}

.interaction-actions button:hover {
  color: var(--ink);
}

.interaction-actions button.selected {
  background: #303640;
  color: var(--ink);
}

.action-stack {
  display: grid;
  gap: 8px;
}

.hand-button,
.secondary-button {
  min-height: 42px;
  border-radius: 10px;
  font-size: 0.78rem;
  font-weight: 720;
  cursor: pointer;
  transition: transform 160ms ease-out, background-color 160ms ease-out;
}

.hand-button {
  border: 0;
  background: var(--signal);
  color: var(--signal-ink);
}

.hand-button:hover {
  background: #ff8064;
}

.hand-button[aria-pressed="true"] {
  background: var(--focus);
  color: #03241f;
}

.hand-button:disabled {
  cursor: wait;
  opacity: 0.64;
}

.secondary-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.secondary-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
}

.secondary-button:hover {
  border-color: var(--line-strong);
  background: var(--panel-raised);
  color: var(--ink);
}

.hand-privacy {
  margin: 0;
  color: var(--quiet);
  font-size: 0.68rem;
  line-height: 1.45;
  text-align: center;
}

.canvas-hint {
  position: absolute;
  z-index: var(--z-content);
  bottom: max(22px, env(safe-area-inset-bottom));
  left: clamp(22px, 5vw, 76px);
  max-width: 44ch;
  margin: 0;
  color: var(--quiet);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.68rem;
  line-height: 1.55;
  pointer-events: none;
}

.toast {
  position: fixed;
  z-index: var(--z-toast);
  top: max(70px, calc(env(safe-area-inset-top) + 52px));
  left: 50%;
  max-width: min(420px, calc(100vw - 32px));
  padding: 10px 14px;
  border-radius: 9px;
  background: var(--ink);
  color: #121418;
  font-size: 0.78rem;
  font-weight: 650;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -10px);
  transition: opacity 180ms ease-out, transform 180ms ease-out;
}

.toast[data-kind="error"] {
  background: #ffe2db;
  color: #46140c;
}

.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

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

.fa-help-btn {
  right: 410px !important;
}

.noscript {
  position: fixed;
  z-index: 50;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--stage);
  color: var(--ink);
  text-align: center;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

@keyframes status-pulse {
  0%,
  100% {
    opacity: 0.45;
  }

  50% {
    opacity: 1;
  }
}

@media (max-width: 760px) {
  .top-bar {
    top: max(11px, env(safe-area-inset-top));
    right: 11px;
    left: 14px;
    gap: 10px;
  }

  .studio-brand span {
    display: none;
  }

  .status-chip {
    min-height: 32px;
    padding: 7px 9px;
    font-size: 0.69rem;
  }

  .language-select {
    min-height: 32px;
    max-width: 88px;
    padding-block: 5px;
  }

  .scene-copy {
    top: 72px;
    left: 16px;
    width: min(300px, calc(100vw - 32px));
  }

  .scene-counter {
    margin-bottom: 8px;
    font-size: 0.67rem;
  }

  .scene-copy h1 {
    font-size: 2.45rem;
  }

  .scene-copy p {
    max-width: 30ch;
    margin-top: 10px;
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .control-dock {
    top: auto;
    right: 8px;
    bottom: max(8px, env(safe-area-inset-bottom));
    left: 8px;
    width: auto;
    max-height: min(390px, 48vh);
    gap: 13px;
    padding: 13px;
    border-radius: 13px;
  }

  .dock-heading {
    padding-bottom: 10px;
  }

  .scene-list {
    margin-inline: -13px;
    padding-inline: 13px;
    scroll-padding-inline: 13px;
  }

  .scene-card {
    width: 108px;
    min-width: 108px;
  }

  .scene-preview {
    width: 92px;
    height: 52px;
  }

  .control-row {
    padding: 8px;
  }

  .control-label label,
  .control-label output {
    font-size: 0.64rem;
  }

  .canvas-hint {
    display: none;
  }

  .fa-help-btn {
    top: 56px !important;
    right: 12px !important;
    bottom: auto !important;
  }
}

@media (max-width: 390px) {
  .status-chip {
    max-width: 138px;
  }

  .status-chip span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .palette-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-height: 600px) and (orientation: landscape) {
  .top-bar {
    top: 10px;
  }

  .scene-copy {
    top: 68px;
    left: 18px;
    width: calc(100vw - 390px);
  }

  .scene-copy h1 {
    font-size: 2.5rem;
  }

  .scene-copy p {
    display: none;
  }

  .control-dock {
    top: 56px;
    right: 8px;
    bottom: 8px;
    left: auto;
    width: min(354px, 46vw);
    max-height: none;
    padding: 12px;
  }

  .dock-heading {
    padding-bottom: 8px;
  }

  .scene-list {
    margin-inline: -12px;
    padding-inline: 12px;
  }

  .tuning-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .palette-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .canvas-hint {
    display: none;
  }

  .fa-help-btn {
    top: auto !important;
    right: calc(min(354px, 46vw) + 18px) !important;
    bottom: 14px !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  .status-light,
  .palette-strip i {
    border: 1px solid CanvasText;
  }

  .scene-card.selected,
  .palette-option[aria-pressed="true"] {
    outline: 2px solid Highlight;
  }
}