:root {
  --panel-width: 430px;
  --control-h: 42px;
  --control-gap: 10px;
  --group-gap: 34px;
  --panel-bg: rgba(238, 239, 237, 0.34);
  --panel-line: rgba(255, 255, 255, 0.5);
  --panel-text: rgba(30, 31, 31, 0.86);
  --panel-muted: rgba(48, 50, 50, 0.5);
  --control: #1e1e1e;
  --control-light: rgba(255, 255, 255, 0.42);
  --stage: #1b1b1a;
  --track: rgba(255, 255, 255, 0.72);
  --thumb: #929292;
  font-family: Inter, Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background:
    linear-gradient(90deg, rgba(238, 239, 236, 0.08), transparent 36rem),
    var(--stage);
  color: var(--panel-text);
}

button,
select,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden {
  display: none;
}

.control-panel {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--panel-width);
  overflow-y: auto;
  border-right: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 0;
  background: var(--panel-bg);
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.36), rgba(255, 255, 255, 0.1)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(180, 187, 184, 0.1));
  box-shadow:
    24px 0 80px rgba(0, 0, 0, 0.18),
    inset -1px 0 rgba(255, 255, 255, 0.48),
    inset 1px 1px rgba(255, 255, 255, 0.52);
  backdrop-filter: blur(38px) saturate(1.18);
  -webkit-backdrop-filter: blur(38px) saturate(1.18);
  z-index: 5;
  animation: glassIn 520ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.control-panel::before,
.control-panel::after {
  content: none;
}

.control-panel::-webkit-scrollbar {
  width: 14px;
}

.control-panel::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.22);
}

.control-panel::-webkit-scrollbar-thumb {
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(134, 136, 134, 0.58);
}

.panel-content {
  position: relative;
  padding: 24px 24px 28px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
}

.panel-header {
  display: grid;
  gap: 16px;
  margin-bottom: 26px;
}

.panel-header h1 {
  margin: 0;
  color: rgba(24, 24, 24, 0.94);
  font-size: 15px;
  font-weight: 850;
  letter-spacing: 0;
  line-height: 1.05;
  text-align: center;
}

.panel-header p,
.hint,
.slider-field small,
.panel-footer {
  margin: 0;
  color: var(--panel-muted);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.38;
}

.primary,
.secondary,
.segmented button,
select,
.text-field input,
.color-field {
  min-height: 35px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.48), 0 10px 24px rgba(0, 0, 0, 0.04);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, opacity 180ms ease;
}

.primary {
  background: rgba(18, 18, 18, 0.72);
  color: #f8f8f6;
  border-color: rgba(255, 255, 255, 0.26);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.18), inset 0 -1px rgba(0, 0, 0, 0.28), 0 18px 34px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(18px) saturate(1.04);
  -webkit-backdrop-filter: blur(18px) saturate(1.04);
}

.secondary,
select,
.text-field input,
.color-field {
  background: rgba(255, 255, 255, 0.24);
  color: rgba(54, 54, 54, 0.76);
  backdrop-filter: blur(22px) saturate(1.12);
  -webkit-backdrop-filter: blur(22px) saturate(1.12);
}

.primary:hover,
.secondary:hover,
.segmented button:hover,
.text-field input:focus,
select:focus,
.color-field:focus-within {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.8);
}

.control-wide {
  width: 100%;
  min-height: var(--control-h);
  margin-bottom: var(--control-gap);
}

select + .control-wide,
.control-wide + .button-row {
  margin-top: 2px;
}

.button-row,
.segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--control-gap);
  margin: 18px 0 0;
}

.button-row .secondary,
.button-row .primary {
  min-height: 42px;
  padding-inline: 8px;
  font-size: 14px;
  line-height: 1.15;
}

.button-row + .hint,
.control-wide + .hint,
.secondary + .hint,
.primary + .hint {
  margin-top: 12px;
}

.color-grid + .button-row {
  margin-top: 16px;
}

.button-row + .control-wide {
  margin-top: 12px;
}

.segmented {
  margin-bottom: 14px;
}

.segmented:not(.two) {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.segmented button {
  background: rgba(255, 255, 255, 0.3);
  color: #7a7a7a;
  min-height: var(--control-h);
  padding-inline: 10px;
  overflow-wrap: anywhere;
}

.segmented button.selected {
  background: #1f1f1f;
  color: #ffffff;
  border-color: #1f1f1f;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.secondary.active {
  background: #1f1f1f;
  color: #ffffff;
  border-color: #1f1f1f;
}

.group {
  margin-top: var(--group-gap);
  padding-top: 18px;
  border-top: 1px solid var(--panel-line);
}

.group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 34px;
  margin: -6px -4px 16px;
  padding: 8px 4px;
  color: rgba(58, 59, 59, 0.54);
  font-size: 16px;
  font-weight: 850;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
}

.group-title span:last-child {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  color: rgba(42, 42, 42, 0.62);
  background: rgba(255, 255, 255, 0.2);
}

.group.is-collapsed > :not(.group-title) {
  display: none;
}

.group.is-collapsed {
  padding-bottom: 2px;
}

select {
  width: 100%;
  height: var(--control-h);
  margin: 0 0 var(--control-gap);
  padding: 0 48px 0 18px;
  outline: 0;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, rgba(62, 64, 64, 0.78) 50%), linear-gradient(135deg, rgba(62, 64, 64, 0.78) 50%, transparent 50%);
  background-position: calc(100% - 34px) 50%, calc(100% - 25px) 50%;
  background-size: 9px 9px, 9px 9px;
  background-repeat: no-repeat;
}

.text-field,
.color-field {
  display: grid;
  gap: 6px;
  margin: 0 0 var(--control-gap);
}

.text-field span,
.color-field span {
  color: rgba(92, 94, 92, 0.62);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.text-field input {
  width: 100%;
  height: var(--control-h);
  padding: 0 18px;
  outline: 0;
}

.text-field input::placeholder {
  color: rgba(80, 80, 80, 0.38);
}

.text-block {
  margin: 0 0 16px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.text-block .text-field {
  margin-top: 0;
}

.mini-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 72px;
  column-gap: 18px;
  align-items: start;
}

.compact-slider,
.mini-color {
  display: grid;
  grid-template-rows: 18px 40px;
  gap: 8px;
  align-items: center;
}

.compact-slider span,
.mini-color span {
  color: rgba(92, 94, 92, 0.62);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.compact-slider output {
  font: inherit;
}

.compact-slider input[type="range"] {
  margin-top: 0;
  align-self: center;
}

.mini-color input {
  justify-self: center;
  align-self: center;
  width: 44px;
  height: 44px;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.4);
}

.slider-field {
  display: block;
  margin: 18px 0 28px;
}

.slider-field > span {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: rgba(58, 60, 60, 0.74);
  font-size: 16px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.slider-field b,
.slider-field output {
  font: inherit;
}

input[type="range"] {
  width: 100%;
  height: 18px;
  margin: 12px 0 0;
  appearance: none;
  background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 11px;
  border: 2px solid rgba(255, 255, 255, 0.54);
  border-radius: 99px;
  background: linear-gradient(#8d8d8c, #8d8d8c) 0 / var(--fill, 50%) 100% no-repeat, rgba(255, 255, 255, 0.5);
}

input[type="range"]::-webkit-slider-thumb {
  width: 28px;
  height: 28px;
  margin-top: -10px;
  appearance: none;
  border: 0;
  border-radius: 50%;
  background: var(--thumb);
}

.palette-picker {
  display: grid;
  grid-template-columns: repeat(5, 42px);
  gap: 10px;
  justify-content: space-between;
}

.palette-swatch {
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  background: #111111;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.4), 0 8px 18px rgba(0, 0, 0, 0.08);
}

.palette-swatch::before,
.palette-swatch::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 2px solid #888;
  border-radius: 50%;
}

.palette-swatch::after {
  inset: 18px;
  background: #888;
}

.palette-swatch.selected {
  outline: 2px solid #111;
  outline-offset: 3px;
}

.palette-swatch.light {
  background: #f6f6f2;
}

.palette-swatch.gold::before,
.palette-swatch.gold::after {
  border-color: #9f8740;
  background: #9f8740;
}

.palette-swatch.green::before,
.palette-swatch.green::after {
  border-color: #4bb15a;
  background: #4bb15a;
}

.palette-swatch.rose::before,
.palette-swatch.rose::after {
  border-color: #ff9ab7;
  background: #ff9ab7;
}

.palette-swatch.cyan::before,
.palette-swatch.cyan::after {
  border-color: #74eaff;
  background: #74eaff;
}

.palette-swatch.violet::before,
.palette-swatch.violet::after {
  border-color: #b391ff;
  background: #b391ff;
}

.palette-swatch.custom {
  background: conic-gradient(#ff6060, #ffd166, #4dd978, #67d3ff, #b391ff, #ff6060);
}

.palette-swatch.saved {
  background: linear-gradient(135deg, var(--saved-line), var(--saved-text) 52%, var(--saved-dot));
}

.palette-swatch.saved::before {
  inset: 9px;
  border-color: rgba(255, 255, 255, 0.82);
  background: var(--saved-line);
}

.palette-swatch.saved::after {
  inset: 17px;
  border-color: transparent;
  background: var(--saved-dot);
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin: 16px 0 12px;
}

.color-field {
  min-height: 74px;
  margin: 0;
  padding: 11px 8px 10px;
  align-items: center;
  justify-items: center;
  text-align: center;
}

.color-field input {
  justify-self: center;
  width: 40px;
  height: 40px;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  background: transparent;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: 0;
  border-radius: 999px;
}

input[type="color"]::-moz-color-swatch {
  border: 0;
  border-radius: 999px;
}

.panel-footer {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--panel-line);
  color: rgba(68, 70, 70, 0.62);
  font-size: 13px;
  font-weight: 800;
}

.stage {
  position: fixed;
  inset: 0 0 0 var(--panel-width);
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(214, 218, 216, 0.34) 0, rgba(214, 218, 216, 0.15) 96px, transparent 330px),
    #1b1b1a;
}

.canvas-wrap {
  display: grid;
  place-items: center;
  width: calc(100vw - var(--panel-width));
  height: 100vh;
  padding: 36px 64px;
}

canvas {
  display: block;
  width: min(calc(100vw - var(--panel-width) - 128px), calc(88vh * var(--canvas-aspect, 0.75)));
  height: auto;
  max-height: 88vh;
  aspect-ratio: var(--canvas-aspect, 0.75);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.48);
  background: #111;
  cursor: crosshair;
  animation: canvasSettle 620ms ease both;
}

canvas.dragging-canvas-item {
  cursor: grabbing;
}

canvas.drawing-doodle {
  cursor: crosshair;
}

canvas.painting-mask {
  cursor: cell;
}

.credit {
  position: fixed;
  right: 24px;
  bottom: 18px;
  width: min(430px, calc(100vw - var(--panel-width) - 80px));
  margin: 0;
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
  text-align: right;
}

.credit a {
  color: rgba(255, 255, 255, 0.66);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (max-width: 820px) {
  .control-panel {
    position: relative;
    width: 100%;
    max-height: 52vh;
    border-right: 0;
    border-bottom: 1px solid #d9d9d6;
  }

  .panel-content {
    padding: 20px;
  }

  .stage {
    position: relative;
    inset: auto;
    min-height: 70vh;
  }

  .canvas-wrap {
    width: 100%;
    height: 70vh;
    padding: 20px;
  }

  canvas {
    width: min(calc(100vw - 40px), calc(62vh * var(--canvas-aspect, 0.75)));
    height: auto;
    max-width: calc(100vw - 40px);
    max-height: 62vh;
  }

  .credit {
    display: none;
  }
}

@keyframes glassIn {
  from {
    opacity: 0;
    transform: translateX(-18px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes canvasSettle {
  from {
    opacity: 0;
    transform: scale(0.985);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

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


/* compact glass restore start */
:root {
  --panel-width: 376px;
  --control-h: 36px;
  --control-gap: 8px;
  --group-gap: 27px;
  --panel-bg: rgba(232, 236, 234, 0.24);
  --panel-line: rgba(255, 255, 255, 0.62);
  --panel-text: rgba(32, 34, 34, 0.78);
  --panel-muted: rgba(38, 40, 40, 0.48);
  --control-light: rgba(255, 255, 255, 0.28);
  --thumb: rgba(150, 152, 152, 0.82);
}

.control-panel {
  background: rgba(222, 228, 226, 0.22);
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.30), rgba(255, 255, 255, 0.055)),
    linear-gradient(180deg, rgba(245, 248, 246, 0.13), rgba(120, 128, 126, 0.08));
  border-right-color: rgba(255, 255, 255, 0.42);
  box-shadow:
    20px 0 74px rgba(0, 0, 0, 0.14),
    inset -1px 0 rgba(255, 255, 255, 0.48),
    inset 1px 1px rgba(255, 255, 255, 0.48);
  backdrop-filter: blur(48px) saturate(1.28) contrast(0.96);
  -webkit-backdrop-filter: blur(48px) saturate(1.28) contrast(0.96);
}

.control-panel::-webkit-scrollbar {
  width: 10px;
}

.control-panel::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.12);
}

.control-panel::-webkit-scrollbar-thumb {
  border: 3px solid rgba(255, 255, 255, 0.14);
  background: rgba(120, 124, 124, 0.46);
}

.panel-content {
  padding: 20px 20px 24px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.015));
}

.panel-header {
  gap: 12px;
  margin-bottom: 20px;
}

.panel-header h1 {
  font-size: 14px;
}

.panel-header p,
.hint,
.slider-field small,
.panel-footer {
  font-size: 12.5px;
  font-weight: 650;
  line-height: 1.34;
}

.primary,
.secondary,
.segmented button,
select,
.text-field input,
.color-field {
  min-height: 32px;
  font-size: 13px;
  font-weight: 700;
  border-color: rgba(255, 255, 255, 0.64);
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.38),
    0 8px 18px rgba(0, 0, 0, 0.035);
}

.primary {
  background: rgba(17, 18, 18, 0.72);
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.16),
    inset 0 -1px rgba(0, 0, 0, 0.22),
    0 14px 26px rgba(0, 0, 0, 0.13);
  backdrop-filter: blur(20px) saturate(1.05);
  -webkit-backdrop-filter: blur(20px) saturate(1.05);
}

.secondary,
select,
.text-field input,
.color-field,
.segmented button {
  background-color: rgba(255, 255, 255, 0.18);
  color: rgba(48, 50, 50, 0.58);
  backdrop-filter: blur(24px) saturate(1.16);
  -webkit-backdrop-filter: blur(24px) saturate(1.16);
}

.control-wide,
select,
.text-field input,
.segmented button {
  min-height: var(--control-h);
  height: var(--control-h);
}

.button-row,
.segmented {
  gap: 8px;
  margin-top: 14px;
}

.button-row .secondary,
.button-row .primary {
  min-height: 34px;
  font-size: 12px;
}

.group {
  padding-top: 15px;
}

.group-title {
  min-height: 30px;
  margin: -5px -2px 13px;
  padding: 6px 2px;
  font-size: 14px;
  letter-spacing: 0.13em;
  color: rgba(42, 44, 44, 0.50);
}

.group-title span:last-child {
  width: 30px;
  height: 30px;
  background: rgba(255, 255, 255, 0.16);
}

select {
  padding-left: 15px;
  padding-right: 40px;
  background-position: calc(100% - 28px) 50%, calc(100% - 20px) 50%;
  background-size: 8px 8px, 8px 8px;
}

.text-field,
.color-field {
  gap: 5px;
}

.text-field span,
.color-field span {
  font-size: 11px;
  letter-spacing: 0.095em;
}

.text-field input {
  padding-inline: 15px;
}

.text-block {
  margin-bottom: 12px;
  padding: 10px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
}

.mini-controls {
  grid-template-columns: minmax(0, 1fr) 58px;
  column-gap: 12px;
}

.compact-slider,
.mini-color {
  grid-template-rows: 16px 34px;
  gap: 6px;
}

.mini-color input {
  width: 36px;
  height: 36px;
}

.slider-field {
  margin: 15px 0 23px;
}

.slider-field > span {
  font-size: 14px;
  letter-spacing: 0.075em;
}

input[type="range"] {
  height: 14px;
  margin-top: 10px;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 8px;
  border-width: 1.5px;
  background:
    linear-gradient(rgba(132, 134, 134, 0.74), rgba(132, 134, 134, 0.74)) 0 / var(--fill, 50%) 100% no-repeat,
    rgba(255, 255, 255, 0.56);
}

input[type="range"]::-webkit-slider-thumb {
  width: 24px;
  height: 24px;
  margin-top: -9px;
}

.palette-picker {
  grid-template-columns: repeat(5, 34px);
  gap: 8px;
}

.palette-swatch {
  width: 34px;
  height: 34px;
}

.palette-swatch::before {
  inset: 9px;
}

.palette-swatch::after {
  inset: 15px;
}

.color-grid {
  gap: 6px;
  margin: 12px 0 10px;
}

.color-field {
  min-height: 62px;
  padding: 9px 7px;
}

.color-field input {
  width: 34px;
  height: 34px;
}

.stage {
  background:
    linear-gradient(90deg, rgba(214, 224, 222, 0.28) 0, rgba(205, 216, 216, 0.12) 82px, transparent 285px),
    #1b1b1a;
}

.canvas-wrap {
  width: calc(100vw - var(--panel-width));
  padding: 32px 54px;
}

canvas {
  width: min(calc(100vw - var(--panel-width) - 108px), calc(88vh * var(--canvas-aspect, 0.75)));
}

@media (max-width: 820px) {
  .control-panel {
    max-height: 46vh;
  }

  .panel-content {
    padding: 16px;
  }

  .group {
    margin-top: 22px;
  }
}
/* compact glass restore end */


/* living glass tint start */
:root {
  --glass-tint-a: rgba(210, 224, 226, 0.26);
  --glass-tint-b: rgba(188, 202, 198, 0.18);
  --glass-tint-c: rgba(238, 240, 236, 0.16);
}

.control-panel {
  background:
    radial-gradient(circle at 82% 12%, var(--glass-tint-a), transparent 34%),
    radial-gradient(circle at 92% 72%, var(--glass-tint-b), transparent 42%),
    radial-gradient(circle at 18% 48%, var(--glass-tint-c), transparent 52%),
    rgba(226, 232, 230, 0.16);
  background-blend-mode: screen, screen, normal, normal;
  backdrop-filter: blur(54px) saturate(1.36) contrast(0.96);
  -webkit-backdrop-filter: blur(54px) saturate(1.36) contrast(0.96);
}

.control-panel::before {
  content: "";
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--panel-width);
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.035)),
    radial-gradient(circle at 70% 24%, var(--glass-tint-b), transparent 44%);
  mix-blend-mode: screen;
  opacity: 0.82;
}

.panel-content {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.012)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0));
}

.secondary,
select,
.text-field input,
.color-field,
.segmented button {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.08)),
    var(--glass-tint-c);
}

.text-block {
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025)),
    var(--glass-tint-c);
}
/* living glass tint end */


/* resizable split panel start */
.split-resize-handle {
  position: fixed;
  z-index: 9;
  top: 0;
  bottom: 0;
  left: var(--panel-width);
  width: 14px;
  transform: translateX(-7px);
  cursor: ew-resize;
  touch-action: none;
}

.split-resize-handle::before {
  content: "";
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 6px;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent,
    rgba(255, 255, 255, 0.52) 16%,
    rgba(255, 255, 255, 0.18) 50%,
    rgba(255, 255, 255, 0.48) 84%,
    transparent
  );
  opacity: 0.42;
}

.split-resize-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 3px;
  width: 8px;
  height: 48px;
  transform: translateY(-50%);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.18)),
    rgba(40, 42, 42, 0.08);
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.55),
    0 8px 20px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transition: opacity 160ms ease;
}

.split-resize-handle:hover::before,
.resizing-split .split-resize-handle::before {
  opacity: 0.85;
}

.split-resize-handle:hover::after,
.resizing-split .split-resize-handle::after {
  opacity: 1;
}

.resizing-split {
  user-select: none;
  cursor: ew-resize;
}

@media (max-width: 820px) {
  .split-resize-handle {
    display: none;
  }
}
/* resizable split panel end */


/* editable system data text start */
.text-field textarea {
  width: 100%;
  min-height: 112px;
  resize: vertical;
  padding: 13px 15px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 18px;
  outline: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.08)),
    var(--glass-tint-c, rgba(255, 255, 255, 0.12));
  color: rgba(44, 46, 46, 0.72);
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.36),
    0 8px 18px rgba(0, 0, 0, 0.035);
  backdrop-filter: blur(24px) saturate(1.16);
  -webkit-backdrop-filter: blur(24px) saturate(1.16);
  font: 700 12px "IBM Plex Mono", monospace;
  line-height: 1.35;
}

.text-field textarea:focus {
  border-color: rgba(255, 255, 255, 0.82);
}
/* editable system data text end */


/* editable system data text start */
.text-field textarea {
  width: 100%;
  min-height: 112px;
  resize: vertical;
  padding: 13px 15px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 18px;
  outline: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.08)),
    var(--glass-tint-c, rgba(255, 255, 255, 0.12));
  color: rgba(44, 46, 46, 0.72);
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.36),
    0 8px 18px rgba(0, 0, 0, 0.035);
  backdrop-filter: blur(24px) saturate(1.16);
  -webkit-backdrop-filter: blur(24px) saturate(1.16);
  font: 700 12px "IBM Plex Mono", monospace;
  line-height: 1.35;
}

.text-field textarea:focus {
  border-color: rgba(255, 255, 255, 0.82);
}
/* editable system data text end */


/* creative upgrade controls start */
.layer-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.layer-list button {
  min-height: 32px;
  padding-inline: 10px;
  font-size: 12px;
  border-radius: 999px;
}

.layer-list button:not(.active) {
  opacity: 0.42;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(52, 54, 54, 0.58);
}
/* creative upgrade controls end */


/* gradient glass controls start */
.gradient-glass-colors {
  margin-top: 10px;
  margin-bottom: 6px;
}

#gradientGlassToggle.active {
  background:
    linear-gradient(90deg, rgba(36, 38, 38, 0.76), rgba(12, 14, 14, 0.68)),
    var(--glass-tint-b, rgba(255, 255, 255, 0.1));
}
/* gradient glass controls end */