:root {
  --page: #f4f4f4;
  --ink: #111111;
  --muted: #636363;
  --soft: #eeeeee;
  --surface: #ffffff;
  --stage: #151515;
  --stage-line: rgba(255, 255, 255, 0.08);
  --blue: #0a66ff;
  --blue-soft: #e8f0ff;
  --coral: #ff5a3d;
  --green: #20a76b;
  --control-bg: #eeeeee;
  --control-bg-hover: #e8e8e8;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.14), 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 4px 14px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.05);
  --radius: 8px;
  --radius-sm: 6px;
  --control-h: 40px;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body.is-embedded {
  background: transparent;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.demo-root {
  min-height: 100vh;
  width: 100%;
  padding: clamp(12px, 2vw, 20px);
  display: flex;
  align-items: center;
  justify-content: center;
}

body.is-embedded .demo-root {
  min-height: 0;
  padding: 0;
  display: block;
}

.demo-shell {
  width: min(100%, 1180px);
  height: min(690px, calc(100vh - 24px));
  min-height: 620px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius);
  background: #101010;
  box-shadow: var(--shadow);
}

body.is-embedded .demo-shell {
  width: 100%;
  height: auto;
  min-height: 0;
  border-radius: 0;
  box-shadow: none;
}

.stage-panel,
.controls-panel {
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.stage-panel {
  position: relative;
  min-width: 0;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(var(--stage-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--stage-line) 1px, transparent 1px),
    radial-gradient(circle at center, rgba(10, 102, 255, 0.13), transparent 36%),
    var(--stage);
  background-size: 32px 32px, 32px 32px, auto, auto;
  color: #ffffff;
  outline: 1px solid rgba(255, 255, 255, 0.08);
}

.stage-topbar {
  position: relative;
  z-index: 2;
  min-height: 52px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  background: rgba(16, 16, 16, 0.78);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.stage-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.playback-button {
  position: relative;
  width: var(--control-h);
  height: var(--control-h);
  border: 0;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #ffffff;
  color: var(--ink);
  box-shadow: 0 7px 18px rgba(0, 0, 0, 0.18);
  transition-property: transform, background-color, color;
  transition-duration: 160ms;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.playback-button:hover {
  background: var(--blue-soft);
  color: var(--blue);
}

.playback-button:active {
  transform: scale(0.96);
}

.playback-button:focus-visible {
  outline: 3px solid rgba(10, 102, 255, 0.35);
  outline-offset: 2px;
}

.playback-icon {
  position: relative;
  width: 15px;
  height: 15px;
  display: block;
}

.playback-icon::before,
.playback-icon::after {
  content: "";
  position: absolute;
  top: 1px;
  bottom: 1px;
  width: 4px;
  border-radius: 1px;
  background: currentColor;
  transition-property: opacity, transform, filter;
  transition-duration: 180ms;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.playback-icon::before {
  left: 2px;
}

.playback-icon::after {
  right: 2px;
}

.playback-button[data-playing="false"] .playback-icon::before {
  top: 0;
  bottom: auto;
  left: 3px;
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 12px solid currentColor;
  border-radius: 0;
  background: transparent;
  transform: translateX(1px) scale(1);
}

.playback-button[data-playing="false"] .playback-icon::after {
  opacity: 0;
  transform: scale(0.25);
  filter: blur(4px);
}

.preview-area {
  position: relative;
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: clamp(22px, 5vw, 54px);
}

.preview-text {
  position: relative;
  z-index: 1;
  width: min(92%, 860px);
  color: var(--demo-color, #ffffff);
  font-size: var(--demo-font-size, 88px);
  line-height: 0.96;
  font-weight: 800;
  letter-spacing: 0;
  text-align: center;
  text-wrap: balance;
  word-break: normal;
  overflow-wrap: anywhere;
  text-shadow: 0 16px 48px rgba(0, 0, 0, 0.38);
  filter: drop-shadow(0 2px 0 rgba(0, 0, 0, 0.18));
}

.char,
.word,
.line {
  display: inline-block;
  vertical-align: top;
  will-change: transform, opacity;
}

.line {
  display: block;
}

.char-mask,
.word-mask,
.line-mask {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
}

.line-mask {
  display: block;
}

.controls-panel {
  min-width: 0;
  min-height: 0;
  background: var(--surface);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  box-shadow:
    0 16px 36px rgba(0, 0, 0, 0.12),
    0 1px 3px rgba(0, 0, 0, 0.08),
    inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

.controls-header {
  padding: 24px 24px 18px;
  border-bottom: 1px solid #eeeeee;
}

.controls-header h2 {
  margin: 0;
  color: #111827;
  font-size: 15px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0;
}

.controls-scroll {
  min-height: 0;
  padding: 24px;
  overflow: auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 18px;
}

.field {
  display: grid;
  gap: 9px;
}

.field.is-disabled .field-label {
  color: #868686;
}

.field.is-wide {
  grid-column: 1 / -1;
}

.field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

label,
.field-label {
  color: #374151;
  font-size: 13px;
  line-height: 1.2;
  font-weight: 750;
  letter-spacing: 0;
}

output {
  min-width: 40px;
  padding: 2px 7px;
  border-radius: 4px;
  background: #f0f0f0;
  color: #6f6f6f;
  font-size: 12px;
  line-height: 1.25;
  font-weight: 700;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

textarea,
select {
  width: 100%;
  min-height: var(--control-h);
  border: 0;
  border-radius: 8px;
  background: var(--control-bg);
  color: #111827;
  box-shadow: none;
  transition-property: box-shadow, background-color, transform;
  transition-duration: 150ms;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

textarea {
  min-height: 88px;
  resize: vertical;
  padding: 11px 12px;
  line-height: 1.35;
  white-space: pre-wrap;
}

select {
  padding: 0 36px 0 14px;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, #111111 50%),
    linear-gradient(135deg, #111111 50%, transparent 50%);
  background-position:
    calc(100% - 19px) 18px,
    calc(100% - 13px) 18px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  font-weight: 400;
}

textarea:focus-visible,
select:focus-visible,
input[type="range"]:focus-visible,
input[type="color"]:focus-visible {
  outline: 3px solid rgba(0, 0, 0, 0.14);
  outline-offset: 2px;
}

textarea:focus,
select:focus {
  background: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.18);
}

.segment {
  min-height: var(--control-h);
  padding: 3px;
  display: grid;
  gap: 2px;
  border-radius: 8px;
  background: var(--control-bg);
  box-shadow: none;
}

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

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

.segment.cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.segment button {
  min-width: 0;
  min-height: 34px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: #4b5563;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0;
  transition-property: transform, background-color, color, box-shadow;
  transition-duration: 150ms;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.segment button:hover {
  color: #111111;
  background: rgba(255, 255, 255, 0.58);
}

.segment button:active {
  transform: scale(0.96);
}

.segment button[aria-pressed="true"] {
  background: #ffffff;
  color: #111111;
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.08),
    inset 0 0 0 1px rgba(0, 0, 0, 0.04);
}

.segment button:focus-visible {
  outline: 3px solid rgba(0, 0, 0, 0.14);
  outline-offset: 1px;
}

.segment button:disabled {
  cursor: not-allowed;
  color: #8b8b8b;
  transform: none;
}

.segment button:disabled:hover {
  background: transparent;
  color: #8b8b8b;
}

.segment button:disabled[aria-pressed="true"] {
  background: rgba(255, 255, 255, 0.66);
  color: #747474;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.045);
}

input[type="range"] {
  width: 100%;
  min-height: 24px;
  margin: 0;
  appearance: none;
  accent-color: #111111;
  background: transparent;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 999px;
  background:
    linear-gradient(
      90deg,
      #111111 0%,
      #111111 var(--range-fill, 0%),
      #cfcfcf var(--range-fill, 0%),
      #cfcfcf 100%
    );
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -5.5px;
  border: 0;
  border-radius: 50%;
  background: #111111;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

input[type="range"]::-moz-range-track {
  height: 3px;
  border-radius: 999px;
  background: #cfcfcf;
}

input[type="range"]::-moz-range-progress {
  height: 3px;
  border-radius: 999px;
  background: #111111;
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 0;
  border-radius: 50%;
  background: #111111;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.color-row {
  display: grid;
  grid-template-columns: var(--control-h) minmax(0, 1fr);
  gap: 8px;
  align-items: center;
}

input[type="color"] {
  width: var(--control-h);
  height: var(--control-h);
  padding: 4px;
  border: 0;
  border-radius: 8px;
  background: var(--control-bg);
  box-shadow: none;
  cursor: pointer;
}

.swatch-value {
  min-height: var(--control-h);
  padding: 0 12px;
  display: flex;
  align-items: center;
  border-radius: 8px;
  background: var(--control-bg);
  color: #6f6f6f;
  font-size: 12px;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
  box-shadow: none;
}

@media (max-width: 900px) {
  .demo-shell {
    grid-template-columns: 1fr;
    height: auto;
    min-height: auto;
  }

  .stage-panel {
    min-height: 440px;
  }

  .controls-panel {
    max-height: none;
  }

  .controls-scroll {
    align-items: start;
  }
}

@media (max-width: 620px) {
  .demo-root {
    padding: 10px;
  }

  body.is-embedded .demo-root {
    padding: 0;
  }

  .demo-shell {
    padding: 10px;
  }

  .stage-panel {
    min-height: 360px;
  }

  .preview-area {
    padding: 24px;
  }

  .preview-text {
    width: 100%;
    font-size: min(var(--demo-font-size, 72px), 13vw);
  }

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

  .segment.cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}