:root {
  color-scheme: light;
  --panel: #f1f0eb;
  --panel-ink: #161713;
  --hairline: rgba(22, 23, 19, 0.14);
  --toolbar: rgba(246, 245, 240, 0.96);
  --ui-muted: #74756e;
  --ui-soft: rgba(0, 0, 0, 0.045);
  --ui-hover: rgba(0, 0, 0, 0.075);
  --ui-surface: rgba(255, 255, 255, 0.35);
  --ui-selected: #171814;
  --ui-selected-ink: #fff;
  --ui-track: #c4c4bd;
  --toggle-track: #d8d7d2;
  --toggle-thumb: #fff;
  --shortcut: rgba(15, 15, 15, 0.66);
  --shortcut-border: rgba(255, 255, 255, 0.14);
  --shortcut-text: rgba(255, 255, 255, 0.58);
  --shortcut-strong: #fff;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --panel: #1d1a17;
  --panel-ink: #f2ede6;
  --hairline: rgba(242, 237, 230, 0.14);
  --toolbar: rgba(29, 26, 23, 0.95);
  --ui-muted: #aaa39a;
  --ui-soft: rgba(255, 255, 255, 0.05);
  --ui-hover: rgba(255, 255, 255, 0.09);
  --ui-surface: rgba(255, 255, 255, 0.055);
  --ui-selected: #f2ede6;
  --ui-selected-ink: #171411;
  --ui-track: #56514b;
  --toggle-track: #49443e;
  --toggle-thumb: #f2ede6;
  --shortcut: rgba(242, 237, 230, 0.88);
  --shortcut-border: rgba(0, 0, 0, 0.15);
  --shortcut-text: rgba(23, 20, 17, 0.58);
  --shortcut-strong: #171411;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  background: var(--panel);
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

.app-shell {
  position: relative;
  width: 100vw;
  height: 100dvh;
  min-height: 480px;
  overflow: hidden;
  isolation: isolate;
  background: var(--panel);
}

.liquid-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: crosshair;
}

.liquid-canvas.is-panning {
  cursor: grabbing;
}

.liquid-canvas.is-drawing {
  cursor: crosshair;
}

.pop-effects {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.mobile-notice {
  width: min(360px, calc(100vw - 32px));
  margin: auto;
  padding: 24px;
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: var(--panel);
  color: var(--panel-ink);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
}

.mobile-notice::backdrop {
  background: rgba(0, 0, 0, 0.68);
  backdrop-filter: blur(7px);
}

.mobile-notice__eyebrow {
  margin: 0 0 12px;
  color: var(--ui-muted);
  font-family: var(--font-geist-mono), monospace;
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.mobile-notice h2 {
  margin: 0;
  font-size: 25px;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.mobile-notice > p:not(.mobile-notice__eyebrow) {
  margin: 14px 0 22px;
  color: var(--ui-muted);
  font-size: 13px;
  line-height: 1.55;
}

.mobile-notice__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.mobile-notice__actions a,
.mobile-notice__actions button {
  min-height: 42px;
  display: grid;
  place-items: center;
  padding: 0 12px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: transparent;
  color: var(--panel-ink);
  font-size: 11px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.mobile-notice__actions button {
  border-color: var(--ui-selected);
  background: var(--ui-selected);
  color: var(--ui-selected-ink);
}

.draw-toolbar {
  position: absolute;
  left: 50%;
  bottom: 18px;
  z-index: 3;
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--toolbar);
  color: var(--panel-ink);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.24), 0 2px 8px rgba(0, 0, 0, 0.13);
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
}

.shape-tools {
  display: flex;
  align-items: stretch;
  gap: 3px;
}

.shape-tools button {
  width: 58px;
  min-height: 42px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
  padding: 3px 5px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--ui-muted);
  cursor: pointer;
}

.shape-tools button > span {
  height: 21px;
  font-size: 24px;
  line-height: 18px;
}

.shape-tools button small {
  font-size: 8px;
  letter-spacing: 0.02em;
}

.shape-tools button:hover {
  background: var(--ui-hover);
  color: var(--panel-ink);
}

.shape-tools button.active {
  background: var(--ui-selected);
  color: var(--ui-selected-ink);
}

.toolbar-control {
  min-height: 42px;
  padding-left: 10px;
  border-left: 1px solid var(--hairline);
}

.toolbar-control > span {
  color: var(--ui-muted);
  font-size: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.corner-control {
  width: 116px;
  display: grid;
  grid-template-columns: 1fr 24px;
  grid-template-rows: 14px 22px;
  align-items: center;
  column-gap: 5px;
}

.corner-control > span {
  grid-column: 1 / -1;
}

.corner-control input {
  width: 82px;
  margin: 0;
  accent-color: #171814;
  cursor: pointer;
}

.corner-control output {
  color: var(--ui-muted);
  font-family: var(--font-geist-mono), monospace;
  font-size: 9px;
  text-align: right;
}

.corner-control.is-muted {
  opacity: 0.35;
}

.fill-toggle {
  min-width: 82px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 3px 8px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--ui-muted);
  font-size: 8px;
  cursor: pointer;
}

.fill-toggle__track {
  position: relative;
  width: 38px;
  height: 21px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--toggle-track);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.08);
  transition: background 160ms ease, border-color 160ms ease;
}

.fill-toggle__track i {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--toggle-thumb);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.22);
  transition: transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fill-toggle[aria-checked="true"] {
  color: var(--panel-ink);
}

.fill-toggle[aria-checked="true"] .fill-toggle__track {
  border-color: var(--ui-selected);
  background: var(--ui-selected);
}

.fill-toggle[aria-checked="true"] .fill-toggle__track i {
  background: var(--ui-selected-ink);
  transform: translateX(17px);
}

.draw-toolbar theme-toggle {
  padding-left: 4px;
  border-left: 1px solid var(--hairline);
}

.draw-toolbar,
.shortcut-strip,
.view-status,
.panel-reveal {
  transition: opacity 160ms ease;
}

.app-shell.ui-hidden .draw-toolbar,
.app-shell.ui-hidden .shortcut-strip,
.app-shell.ui-hidden .view-status,
.app-shell.ui-hidden .control-panel,
.app-shell.ui-hidden .panel-reveal {
  opacity: 0 !important;
  pointer-events: none !important;
}

.shortcut-strip {
  position: absolute;
  left: 50%;
  top: 18px;
  transform: translateX(-50%);
  z-index: 2;
  height: 34px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--shortcut-border);
  border-radius: 999px;
  background: var(--shortcut);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
}

.shortcut-strip span {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  color: var(--shortcut-text);
  font-size: 9px;
  white-space: nowrap;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

kbd {
  font-family: var(--font-geist-mono), monospace;
}

.shortcut-strip kbd {
  color: var(--shortcut-strong);
  font-size: 9px;
  font-weight: 600;
}

.view-status {
  position: absolute;
  left: 26px;
  bottom: 24px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-geist-mono), monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.52);
  mix-blend-mode: difference;
}

.view-status button {
  min-width: 51px;
  height: 28px;
  padding: 0 9px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
}

.back-home {
  height: 28px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  color: inherit;
  text-decoration: none;
  transition: background 150ms ease, color 150ms ease;
}

.back-home:hover,
.back-home:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.view-status button:hover {
  background: rgba(255, 255, 255, 0.12);
}

.control-panel {
  position: absolute;
  z-index: 4;
  top: 18px;
  right: 18px;
  width: min(310px, calc(100vw - 36px));
  max-height: calc(100dvh - 36px);
  overflow-y: auto;
  padding: 22px;
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: var(--panel);
  color: var(--panel-ink);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.33), 0 2px 10px rgba(0, 0, 0, 0.18);
  transform: translateX(calc(100% + 30px));
  opacity: 0;
  pointer-events: none;
  transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1), opacity 180ms ease;
  scrollbar-width: none;
}

.control-panel::-webkit-scrollbar { display: none; }

.control-panel.is-open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 17px;
}

.eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--ui-muted);
  font-family: var(--font-geist-mono), monospace;
  font-size: 9px;
  line-height: 1;
  letter-spacing: 0.16em;
}

.panel-heading h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.035em;
}

.icon-button {
  width: 31px;
  height: 31px;
  --site-xmark-size: 14px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  background: transparent;
  color: var(--panel-ink);
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease;
}

.icon-button:hover {
  background: var(--ui-hover);
  transform: rotate(5deg);
}

.control-group {
  padding: 18px 0;
  border-top: 1px solid var(--hairline);
}

.control-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 13px;
  font-size: 12px;
  font-weight: 600;
}

.control-label code,
.control-label output {
  color: var(--ui-muted);
  font-family: var(--font-geist-mono), monospace;
  font-size: 10px;
  font-weight: 500;
}

.color-control {
  position: relative;
  height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 6px 7px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--ui-surface);
  overflow: hidden;
}

.color-control input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.color-control > span {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border: 1px solid rgba(0, 0, 0, 0.18);
  border-radius: 7px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.color-control p {
  margin: 0;
  color: var(--ui-muted);
  font-size: 10px;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
}

.segmented-control button {
  display: grid;
  place-items: center;
  gap: 7px;
  height: 66px;
  padding: 8px 4px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--ui-soft);
  color: var(--ui-muted);
  font-size: 10px;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}

.segmented-control button:hover { background: var(--ui-hover); }

.segmented-control button.active {
  border-color: var(--hairline);
  background: var(--ui-selected);
  color: var(--ui-selected-ink);
}

.pattern-swatch {
  width: 28px;
  height: 21px;
  border-radius: 3px;
  opacity: 0.62;
}

.pattern-swatch.line {
  background: repeating-linear-gradient(to bottom, currentColor 0 1px, transparent 1px 6px);
}

.pattern-swatch.grid {
  background-image: linear-gradient(currentColor 1px, transparent 1px), linear-gradient(90deg, currentColor 1px, transparent 1px);
  background-size: 7px 7px;
}

.pattern-swatch.dots {
  background-image: radial-gradient(currentColor 1px, transparent 1.2px);
  background-size: 7px 7px;
}

.range-group input[type="range"] {
  width: 100%;
  height: 18px;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

.range-group input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 999px;
  background: var(--ui-track);
}

.range-group input[type="range"]::-webkit-slider-thumb {
  width: 17px;
  height: 17px;
  margin-top: -7px;
  appearance: none;
  border: 4px solid var(--ui-selected);
  border-radius: 50%;
  background: var(--ui-selected-ink);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
}

.range-group input[type="range"]::-moz-range-track {
  height: 3px;
  border: 0;
  border-radius: 999px;
  background: var(--ui-track);
}

.range-group input[type="range"]::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border: 4px solid var(--ui-selected);
  border-radius: 50%;
  background: var(--ui-selected-ink);
}

.range-ends {
  display: flex;
  justify-content: space-between;
  margin-top: 3px;
  color: var(--ui-muted);
  font-size: 9px;
}

.panel-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  padding-top: 4px;
}

.panel-actions button {
  height: 38px;
  border: 1px solid var(--hairline);
  border-radius: 9px;
  background: var(--ui-surface);
  color: var(--panel-ink);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.panel-actions button:hover:not(:disabled) { background: var(--ui-hover); }
.panel-actions button.danger:hover:not(:disabled) { background: var(--ui-selected); color: var(--ui-selected-ink); }
.panel-actions button:disabled { opacity: 0.35; cursor: not-allowed; }

.panel-footnote {
  margin: 14px 0 0;
  color: var(--ui-muted);
  font-size: 9px;
  text-align: center;
}

.panel-footnote kbd {
  display: inline-grid;
  place-items: center;
  min-width: 17px;
  height: 17px;
  margin: 0 2px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  color: var(--panel-ink);
  background: var(--ui-surface);
}

.panel-reveal {
  position: absolute;
  z-index: 4;
  top: 20px;
  right: 20px;
  height: 39px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--toolbar);
  color: var(--panel-ink);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(14px);
  font-size: 11px;
  cursor: pointer;
}

.sliders-icon {
  width: 15px;
  height: 14px;
  display: grid;
  align-content: space-between;
}

.sliders-icon i {
  position: relative;
  display: block;
  width: 15px;
  height: 1px;
  background: currentColor;
}

.sliders-icon i::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.sliders-icon i:nth-child(2)::after { left: 9px; }
.sliders-icon i:nth-child(3)::after { left: 6px; }

.error-message {
  position: absolute;
  left: 50%;
  bottom: 28px;
  z-index: 10;
  transform: translateX(-50%);
  padding: 12px 16px;
  border-radius: 9px;
  background: #ff5f56;
  color: #111;
  font-size: 12px;
}

@media (max-width: 720px) {
  .draw-toolbar {
    left: 10px;
    right: 10px;
    bottom: 10px;
    min-height: 54px;
    justify-content: flex-start;
    overflow-x: auto;
    transform: none;
    scrollbar-width: none;
  }
  .draw-toolbar::-webkit-scrollbar { display: none; }
  .shape-tools button { width: 48px; }
  .corner-control { width: 104px; }
  .corner-control input { width: 70px; }
  .shortcut-strip {
    display: none;
  }
  .view-status {
    left: 16px;
    top: 16px;
    bottom: auto;
  }
  .view-status button,
  .view-status span { display: none; }
  .control-panel {
    top: auto;
    right: 10px;
    bottom: 10px;
    width: calc(100vw - 20px);
    max-height: calc(100dvh - 76px);
    padding: 20px;
    border-radius: 17px;
    transform: translateY(calc(100% + 20px));
  }
  .control-panel.is-open { transform: translateY(0); }
  .panel-reveal { top: 14px; right: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .control-panel,
  .icon-button {
    transition: none;
  }

}