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

body {
  overflow: hidden;
  background: #04060f;
  color: #e8e4d8;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.Hanabi {
  --night-0: #04060f;
  --night-1: #0a1024;
  --night-2: #131a3a;
  --ink: #e8e4d8;
  --ink-mute: rgba(232, 228, 216, 0.62);
  --ink-faint: rgba(232, 228, 216, 0.32);
  --gold: #d4af37;
  --gold-soft: #e8c870;
  --vermilion: #e0533a;
  --line: rgba(232, 228, 216, 0.12);
  --panel: rgba(10, 14, 32, 0.72);
  --panel-solid: rgba(10, 14, 32, 0.92);
  --shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.7), 0 8px 24px -8px rgba(0, 0, 0, 0.5);
}
.Hanabi * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
.Hanabi-Stage {
  position: fixed;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 50% 100%, #1a1f4a 0%, #0a1024 40%, #04060f 100%);
  cursor: crosshair;
  touch-action: none;
}
.Hanabi-Brand {
  position: fixed;
  top: 20px;
  left: 24px;
  z-index: 5;
  pointer-events: none;
  user-select: none;
}
.Hanabi-Brand-Kanji {
  font-family: "Shippori Mincho", serif;
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--gold);
  text-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
}
.Hanabi-Brand-En {
  margin-top: 8px;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--ink-mute);
  text-transform: uppercase;
}
.Hanabi-RecordIndicator {
  position: fixed;
  top: 24px;
  left: 50%;
  z-index: 15;
  display: none;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--vermilion);
  border-radius: 99px;
  background: rgba(224, 83, 58, 0.15);
  backdrop-filter: blur(10px);
  color: var(--vermilion);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  transform: translateX(-50%);
}
.Hanabi-RecordIndicator[data-show] {
  display: flex;
}
.Hanabi-RecordIndicator-Dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--vermilion);
  animation: Hanabi-Pulse 1s ease-in-out infinite;
}
.Hanabi-Hint {
  position: fixed;
  bottom: 24px;
  left: 50%;
  z-index: 5;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--panel-solid);
  backdrop-filter: blur(20px);
  color: var(--ink-mute);
  font-size: 12px;
  letter-spacing: 0.04em;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-50%);
  transition: opacity 0.3s;
}
.Hanabi-Hint[data-show] {
  opacity: 1;
}
.Hanabi-Hint-Key {
  display: inline-block;
  margin: 0 2px;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--gold);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
}
.Hanabi-Panel {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 10;
  width: 320px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--shadow);
  user-select: none;
  transition: opacity 0.2s;
}
.Hanabi-Panel[data-dragging] {
  opacity: 0.92;
}
.Hanabi-Panel[data-collapsed] .Hanabi-Panel-Body {
  display: none;
}
.Hanabi-Panel[data-collapsed] .Hanabi-IconButton svg {
  transform: rotate(180deg);
}
.Hanabi-Panel-Header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  cursor: grab;
}
.Hanabi-Panel-Header:active {
  cursor: grabbing;
}
.Hanabi-Panel-Title {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.Hanabi-Panel-Title-Ja {
  font-family: "Shippori Mincho", serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold);
}
.Hanabi-Panel-Title-En {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.Hanabi-Panel-Controls {
  display: flex;
  gap: 4px;
}
.Hanabi-Panel-Body {
  max-height: calc(100vh - 200px);
  overflow-x: hidden;
  overflow-y: auto;
}
.Hanabi-Panel-Body::-webkit-scrollbar {
  width: 6px;
}
.Hanabi-Panel-Body::-webkit-scrollbar-thumb {
  border-radius: 3px;
  background: var(--line);
}
.Hanabi-IconButton {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--ink-mute);
  cursor: pointer;
  transition: all 0.15s;
}
.Hanabi-IconButton:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
}
.Hanabi-IconButton svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}
.Hanabi-Tabs {
  display: flex;
  padding: 0 8px;
  border-bottom: 1px solid var(--line);
}
.Hanabi-Tab {
  position: relative;
  flex: 1;
  padding: 12px 4px;
  border: none;
  background: transparent;
  color: var(--ink-faint);
  font-family: "Shippori Mincho", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.2s;
}
.Hanabi-Tab:hover {
  color: var(--ink-mute);
}
.Hanabi-Tab[data-active] {
  color: var(--gold);
}
.Hanabi-Tab[data-active]::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: var(--gold);
}
.Hanabi-TabPanel {
  display: none;
  padding: 18px 16px 16px;
}
.Hanabi-TabPanel[data-active] {
  display: block;
}
.Hanabi-Field {
  margin-bottom: 14px;
}
.Hanabi-Field:last-child {
  margin-bottom: 0;
}
.Hanabi-Field-Label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.Hanabi-Field-Name {
  color: var(--ink-mute);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.Hanabi-Field-Value {
  color: var(--gold-soft);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
}
.Hanabi-Range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--line);
  outline: none;
}
.Hanabi-Range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.4);
  cursor: pointer;
}
.Hanabi-Range::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: none;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
}
.Hanabi-Seg {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  gap: 4px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.25);
}
.Hanabi-Seg-Button {
  padding: 7px 4px;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--ink-mute);
  font-family: "Shippori Mincho", serif;
  font-size: 12px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.15s;
}
.Hanabi-Seg-Button:hover {
  color: var(--ink);
}
.Hanabi-Seg-Button[data-active] {
  background: var(--gold);
  color: var(--night-0);
  font-weight: 600;
}
.Hanabi-Colors {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
}
.Hanabi-Colors-Chip {
  position: relative;
  aspect-ratio: 1;
  border: 2px solid var(--ink);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--night-0), inset 0 0 0 1px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  transition: transform 0.15s;
}
.Hanabi-Colors-Chip:hover {
  transform: scale(1.1);
}
.Hanabi-Colors-Add {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  border: 1px dashed var(--ink-faint);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-faint);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.15s;
}
.Hanabi-Colors-Add:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.Hanabi-Colors-Add input {
  display: none;
}
.Hanabi-ColorPresets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 12px;
}
.Hanabi-ColorPresets-Item {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.25);
  text-align: left;
  cursor: pointer;
  transition: all 0.15s;
}
.Hanabi-ColorPresets-Item:hover {
  border-color: var(--gold);
}
.Hanabi-ColorPresets-Name {
  margin-bottom: 4px;
  color: var(--ink);
  font-family: "Shippori Mincho", serif;
  font-size: 11px;
}
.Hanabi-ColorPresets-Swatch {
  display: flex;
  gap: 2px;
  height: 6px;
}
.Hanabi-ColorPresets-Swatch span {
  flex: 1;
  border-radius: 1px;
}
.Hanabi-Switch-Row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
}
.Hanabi-Switch {
  position: relative;
  width: 36px;
  height: 20px;
  border: none;
  border-radius: 10px;
  background: var(--line);
  cursor: pointer;
  transition: background 0.2s;
}
.Hanabi-Switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink);
  transition: transform 0.2s;
}
.Hanabi-Switch[data-on] {
  background: var(--gold);
}
.Hanabi-Switch[data-on]::after {
  background: var(--night-0);
  transform: translateX(16px);
}
.Hanabi-Switch-Label {
  color: var(--ink-mute);
  font-size: 12px;
}
.Hanabi-CustomBackground {
  display: none;
}
.Hanabi-CustomBackground-Input {
  width: 100%;
  height: 32px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
}
.Hanabi-Export {
  padding: 14px 16px;
  border-top: 1px solid var(--line);
}
.Hanabi-Export-Grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}
.Hanabi-Button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.15s;
}
.Hanabi-Button:hover {
  border-color: var(--gold);
  background: rgba(255, 255, 255, 0.08);
}
.Hanabi-Button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.Hanabi-Button svg {
  width: 14px;
  height: 14px;
}
.Hanabi-Button[data-variant=primary] {
  width: 100%;
  border-color: var(--gold);
  background: var(--gold);
  color: var(--night-0);
  font-weight: 600;
}
.Hanabi-Button[data-variant=primary]:hover {
  background: var(--gold-soft);
}
.Hanabi-Button[data-recording] {
  border-color: var(--vermilion);
  background: var(--vermilion);
  color: var(--ink);
  animation: Hanabi-Pulse 1.2s ease-in-out infinite;
}
.Hanabi-Button-Text {
  display: inline-flex;
}
.Hanabi-Toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  z-index: 100;
  padding: 10px 18px;
  border: 1px solid var(--gold);
  border-radius: 8px;
  background: var(--panel-solid);
  backdrop-filter: blur(20px);
  color: var(--ink);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(20px);
  transition: all 0.3s;
}
.Hanabi-Toast[data-show] {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.Hanabi[data-background=custom] .Hanabi-CustomBackground {
  display: block;
}

@keyframes Hanabi-Pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}
@media (max-width: 640px) {
  .Hanabi-Panel {
    top: 60px;
    right: 12px;
    width: calc(100vw - 24px);
  }
  .Hanabi-Brand-Kanji {
    font-size: 22px;
  }
  .Hanabi-Brand-En {
    font-size: 9px;
  }
}