:root {
  color-scheme: light;
  --bg: #edf0ec;
  --desk: #d8ddd6;
  --paper: #fffdf7;
  --panel: rgba(255, 255, 251, 0.88);
  --panel-strong: #fffffb;
  --ink: #20231f;
  --muted: #6d746d;
  --line: rgba(33, 39, 33, 0.14);
  --line-strong: rgba(33, 39, 33, 0.24);
  --accent: #d40045;
  --ui-accent: #178aa0;
  --ui-accent-soft: rgba(23, 138, 160, 0.13);
  --shadow: 0 18px 50px rgba(45, 52, 42, 0.17);
  --panel-radius: 8px;
  --hit: 46px;
  font-family:
    Inter, "Noto Sans JP", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background:
    linear-gradient(130deg, rgba(23, 138, 160, 0.11), transparent 42%),
    linear-gradient(315deg, rgba(217, 102, 104, 0.1), transparent 45%),
    var(--bg);
  color: var(--ink);
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

button,
input {
  font: inherit;
}

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

h1,
h2,
p {
  margin: 0;
}

html.canvas-gesture-active,
html.canvas-gesture-active body,
html.canvas-gesture-active *,
html.canvas-gesture-active *::before,
html.canvas-gesture-active *::after {
  user-select: none !important;
  -webkit-user-select: none !important;
  -webkit-user-drag: none !important;
  -webkit-touch-callout: none !important;
  -webkit-tap-highlight-color: transparent !important;
}

.app-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100svh;
  min-width: 760px;
  min-height: 680px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) minmax(286px, 320px);
  grid-template-rows: 54px minmax(0, 1fr) 64px;
  grid-template-areas:
    "top top top"
    "rail canvas inspector"
    "rail sim inspector";
  gap: 10px;
  padding: 10px;
}

.top-bar {
  grid-area: top;
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-lockup {
  min-width: 0;
}

h1 {
  font-size: 1.05rem;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  font-size: 0.96rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.status-line,
.top-actions,
.tool-rail,
.simulation-bar,
.simulation-slider,
.inspector-header,
.inspector-actions,
.mini-readout,
.tabs,
.preset-row,
.source-row,
.diagnostics-header,
.diagnostics-actions {
  display: flex;
  align-items: center;
}

.status-line {
  gap: 8px;
  min-width: 0;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  line-height: 1;
}

#gpu-status {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-light {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: #d5a842;
  box-shadow: 0 0 0 3px rgba(213, 168, 66, 0.18);
}

.status-light.ready {
  background: #32b974;
  box-shadow: 0 0 0 3px rgba(50, 185, 116, 0.18);
}

.top-actions {
  justify-content: flex-end;
  gap: 7px;
  min-width: 0;
}

.icon-button,
.rail-tool,
.tab-label,
.brush-preset,
.swatch,
.mix-swatch,
.sim-action {
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink);
  cursor: pointer;
}

.icon-button {
  min-width: var(--hit);
  min-height: var(--hit);
  display: grid;
  place-items: center;
  padding: 0;
}

.icon-button.primary {
  width: auto;
  padding: 0 12px;
  grid-auto-flow: column;
  gap: 8px;
  border-color: rgba(23, 138, 160, 0.42);
  background: rgba(23, 138, 160, 0.13);
  color: #0b6f82;
  font-size: 0.78rem;
  font-weight: 850;
}

.icon-button svg,
.rail-tool svg,
.sim-action svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.diagnostics-button span,
.timelapse-button span,
.share-button span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.tool-rail {
  grid-area: rail;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  background: rgba(255, 255, 251, 0.76);
  box-shadow: var(--shadow);
}

.rail-section {
  display: grid;
  gap: 8px;
  width: 100%;
}

.rail-tool {
  width: 46px;
  min-height: 50px;
  display: grid;
  place-items: center;
  gap: 2px;
  padding: 5px 0;
}

.rail-tool span {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 850;
  line-height: 1;
}

.rail-tool.active,
.rail-tool:has(.active),
.rail-tool:hover,
.rail-tool:focus-visible,
.icon-button:hover,
.icon-button:focus-visible,
.swatch:hover,
.swatch:focus-visible,
.mix-swatch:hover,
.mix-swatch:focus-visible,
.brush-preset:hover,
.brush-preset:focus-visible,
.tab-label:hover,
.tab-label:focus-visible,
.sim-action:hover,
.sim-action:focus-visible {
  border-color: rgba(23, 138, 160, 0.5);
  outline: none;
}

.rail-tool.active,
.tab-input-active,
#panel-brush:checked ~ .tabs label[for="panel-brush"],
#panel-color:checked ~ .tabs label[for="panel-color"],
.brush-preset.active {
  border-color: rgba(23, 138, 160, 0.52);
  background: var(--ui-accent-soft);
  color: #0b6f82;
  box-shadow: inset 0 0 0 1px rgba(23, 138, 160, 0.12);
}

.canvas-area {
  grid-area: canvas;
  min-width: 0;
  min-height: 0;
  display: grid;
  place-items: center;
  position: relative;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

.canvas-area,
.canvas-area * {
  user-select: none !important;
  -webkit-user-select: none !important;
  -webkit-user-drag: none !important;
  -webkit-touch-callout: none !important;
  -webkit-tap-highlight-color: transparent !important;
}

.canvas-area::selection,
.canvas-area *::selection {
  background: transparent;
}

.paper-stage {
  position: relative;
  width: min(100%, calc(100svh - 158px), 900px);
  aspect-ratio: 1;
  justify-self: center;
  align-self: center;
  padding: clamp(10px, 1.4vw, 16px);
  border: 1px solid rgba(33, 39, 33, 0.16);
  border-radius: var(--panel-radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(228, 236, 232, 0.5)),
    var(--desk);
  box-shadow: 0 24px 60px rgba(43, 50, 39, 0.2);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

#paint-canvas {
  position: relative;
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 6px;
  cursor: none;
  outline: none;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
  background: var(--paper);
  box-shadow:
    inset 0 0 0 1px rgba(33, 39, 33, 0.13),
    0 12px 28px rgba(52, 43, 31, 0.14);
  z-index: 0;
}

.simulation-bar {
  grid-area: sim;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
  min-height: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  background: rgba(255, 255, 251, 0.8);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.transport-button,
.solidify-button,
.dry-button,
.wet-button {
  height: 46px;
  grid-auto-flow: column;
  gap: 8px;
  padding: 0 10px;
  font-weight: 850;
}

.transport-button span,
.solidify-button span,
.dry-button span,
.wet-button span,
.export-button span,
.state-button span {
  font-size: 0.72rem;
  font-weight: 850;
  line-height: 1;
}

.simulation-slider {
  min-width: 0;
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: auto minmax(80px, 1fr) 4ch;
  gap: 10px;
  padding: 0 8px;
}

.simulation-slider span {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
}

input[type="range"] {
  width: 100%;
  height: 24px;
  margin: 0;
  accent-color: var(--ui-accent);
}

.slider-value {
  min-width: 4.4ch;
  color: var(--ink);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  font-weight: 850;
  line-height: 1;
  text-align: right;
}

.toolbar {
  grid-area: inspector;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.toolbar.minimized {
  display: none;
}

.inspector-header {
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.dock-title {
  min-width: 0;
}

.eyebrow {
  margin-bottom: 4px;
  color: var(--ui-accent);
  font-size: 0.68rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  text-transform: uppercase;
}

.inspector-actions {
  justify-content: flex-end;
  gap: 8px;
  flex: 0 0 auto;
}

.mini-readout {
  gap: 7px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 850;
  line-height: 1;
}

.current-swatch {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  border: 1px solid rgba(33, 39, 33, 0.2);
  border-radius: 999px;
  background: var(--accent);
}

.panel-toggle {
  width: 38px;
  min-width: 38px;
  height: 38px;
  min-height: 38px;
}

.panel-toggle .expand-icon {
  display: none;
}

.toolbar.minimized .panel-toggle .collapse-icon {
  display: none;
}

.toolbar.minimized .panel-toggle .expand-icon {
  display: block;
}

.toolbar-restore[hidden] {
  display: none;
}

.toolbar-restore {
  position: fixed;
  right: max(12px, env(safe-area-inset-right));
  bottom: calc(86px + env(safe-area-inset-bottom));
  z-index: 30;
  width: auto;
  min-width: 132px;
  min-height: 56px;
  grid-auto-flow: column;
  grid-template-columns: auto auto;
  gap: 8px;
  padding: 0 14px;
  border-color: rgba(33, 39, 33, 0.24);
  background: rgba(255, 255, 251, 0.98);
  color: var(--ink);
  box-shadow: 0 14px 34px rgba(45, 52, 42, 0.22);
  touch-action: manipulation;
  pointer-events: auto;
}

.toolbar-restore svg {
  width: 24px;
  height: 24px;
}

.toolbar-restore span {
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
}

.panel-body {
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
}

.panel-tab-input,
#water-brush,
#empty-brush,
.simulation-toggle input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.tabs {
  gap: 6px;
}

.tab-label {
  flex: 1 1 0;
  min-width: 0;
  height: 36px;
  display: grid;
  place-items: center;
  padding: 0 8px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
}

.panels {
  min-height: 0;
  overflow: hidden;
}

.tab-panel {
  display: none;
  height: 100%;
  min-height: 0;
  align-content: start;
  gap: 12px;
}

#panel-brush:checked ~ .panels .brush-panel,
#panel-color:checked ~ .panels .color-panel {
  display: grid;
}

@media (min-width: 901px) and (min-height: 920px) {
  .toolbar:not(.minimized) .tabs {
    pointer-events: none;
  }

  .toolbar:not(.minimized) .tab-label {
    border-color: rgba(23, 138, 160, 0.38);
    background: var(--ui-accent-soft);
    color: #0b6f82;
    cursor: default;
  }

  .toolbar:not(.minimized) .panels {
    display: grid;
    align-content: start;
    gap: 14px;
    overflow: auto;
    padding-right: 2px;
  }

  .toolbar:not(.minimized) .tab-panel {
    display: grid;
    height: auto;
  }

  .toolbar:not(.minimized) .color-panel {
    padding-top: 14px;
    border-top: 1px solid var(--line);
  }
}

.control-group,
.control-grid {
  display: grid;
  gap: 11px;
  min-width: 0;
}

.control-group.pigment-source {
  display: none;
}

.control-group > label,
.control-grid span,
.section-label {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0;
}

.preset-row {
  gap: 7px;
  flex-wrap: wrap;
}

.brush-preset {
  min-height: 34px;
  padding: 0 10px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 850;
}

.control-grid label {
  display: grid;
  grid-template-columns: 5.2em minmax(0, 1fr) 4ch;
  gap: 10px;
  align-items: center;
}

.brush-action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.sim-action {
  min-height: 48px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  color: var(--ink);
  font-size: 0.74rem;
  font-weight: 850;
  text-align: left;
}

.simulation-toggle {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  background: rgba(255, 255, 255, 0.58);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 850;
  line-height: 1;
  cursor: pointer;
}

.toggle-track {
  position: relative;
  width: 38px;
  height: 22px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: rgba(33, 39, 33, 0.14);
  transition: background 120ms ease;
}

.toggle-track::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 1px 5px rgba(33, 39, 33, 0.22);
  transition: transform 120ms ease;
}

.simulation-toggle input:checked + .toggle-track {
  background: rgba(23, 138, 160, 0.5);
}

.simulation-toggle input:checked + .toggle-track::after {
  transform: translateX(16px);
}

.simulation-toggle input:focus-visible + .toggle-track {
  outline: 2px solid rgba(23, 138, 160, 0.42);
  outline-offset: 2px;
}

input[type="color"] {
  width: 46px;
  height: 34px;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: var(--panel-radius);
  background: rgba(255, 255, 255, 0.64);
  cursor: pointer;
}

.source-row {
  gap: 9px;
}

.swatch,
.mix-swatch {
  position: relative;
  min-width: 0;
  height: 34px;
  padding: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0)),
    var(--swatch);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.18),
    inset 0 -8px 18px rgba(33, 39, 33, 0.1);
}

.mix-swatch:disabled {
  cursor: not-allowed;
  filter: saturate(0.7);
  opacity: 0.42;
}

.source-row .swatch {
  width: 34px;
  flex: 0 0 34px;
}

.palette-tool {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.74), rgba(224, 238, 239, 0.5)),
    var(--swatch);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
}

.palette-group-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin-bottom: 9px;
}

.palette-group-button {
  min-width: 0;
  height: 30px;
  padding: 0 6px;
  border: 1px solid rgba(33, 39, 33, 0.18);
  border-radius: var(--panel-radius);
  background: rgba(255, 255, 255, 0.62);
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0;
  cursor: pointer;
}

.palette-group-button:hover,
.palette-group-button:focus-visible {
  border-color: rgba(23, 138, 160, 0.46);
  color: #0b6f82;
}

.palette-group-button.active {
  border-color: rgba(33, 39, 33, 0.4);
  background: rgba(235, 248, 250, 0.86);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(23, 138, 160, 0.22);
}

.mix-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}

.swatch.active,
.mix-swatch.active {
  border-color: rgba(33, 39, 33, 0.58);
  outline: 2px solid rgba(23, 138, 160, 0.54);
  outline-offset: 2px;
}

.icon-button .play-icon,
.icon-button .resume-label {
  display: none;
}

.icon-button.paused .pause-icon {
  display: none;
}

.icon-button.paused .play-icon {
  display: block;
  fill: currentColor;
  stroke: none;
}

.icon-button.paused .pause-label {
  display: none;
}

.icon-button.paused .resume-label {
  display: inline;
}

.timelapse-button.recording {
  border-color: rgba(207, 94, 114, 0.54);
  background: rgba(207, 94, 114, 0.14);
  color: #9f3548;
}

.timelapse-stop-icon {
  display: none;
  fill: currentColor;
  stroke: none;
}

.timelapse-button.recording .timelapse-record-icon {
  display: none;
}

.timelapse-button.recording .timelapse-stop-icon {
  display: block;
}

.cursor-ring {
  position: fixed;
  left: 50vw;
  top: 50vh;
  width: 80px;
  height: 80px;
  border: 1px solid rgba(20, 28, 24, 0.5);
  border-radius: 999px;
  pointer-events: none;
  z-index: 10;
  transform: translate(-50%, -50%);
  opacity: 0;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.52),
    0 2px 8px rgba(0, 0, 0, 0.14);
  transition: opacity 150ms ease;
}

.cursor-ring.visible {
  opacity: 1;
}

.diagnostics-panel {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 20;
  width: min(620px, calc(100vw - 28px));
  max-height: min(560px, calc(100svh - 28px));
  display: grid;
  grid-template-rows: auto minmax(220px, 1fr);
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--panel-radius);
  background: rgba(255, 255, 251, 0.96);
  box-shadow: var(--shadow);
}

.diagnostics-panel[hidden] {
  display: none;
}

.diagnostics-header {
  justify-content: space-between;
  gap: 12px;
}

.diagnostics-actions {
  gap: 8px;
}

#diagnostics-output {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  padding: 10px;
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
  font: 0.74rem/1.45 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

@media (max-width: 1080px), (pointer: coarse) and (max-width: 1366px), (hover: none) and (max-width: 1366px) {
  .app-shell {
    grid-template-columns: 58px minmax(0, 1fr) minmax(270px, 288px);
    grid-template-rows: 52px minmax(0, 1fr) 62px;
    gap: 8px;
    padding: 8px;
  }

  .status-line #gpu-status {
    max-width: 34vw;
  }

  .icon-button {
    --hit: 42px;
  }

  .icon-button.primary {
    padding: 0 10px;
  }

  .rail-tool {
    width: 42px;
    min-height: 48px;
  }

  .toolbar {
    padding: 12px;
  }

  .paper-stage {
    width: min(100%, calc(100svh - 150px), 820px);
  }

  .control-grid label {
    grid-template-columns: 4.7em minmax(0, 1fr) 4ch;
  }
}

@media (max-width: 900px) {
  .app-shell {
    min-width: 700px;
    min-height: 760px;
    grid-template-columns: 58px minmax(0, 1fr);
    grid-template-rows: 52px minmax(0, 1fr) minmax(302px, 32svh);
    grid-template-areas:
      "top top"
      "rail canvas"
      "inspector inspector";
  }

  .top-bar {
    grid-template-columns: minmax(136px, 1fr) auto;
  }

  .status-line #gpu-status {
    display: none;
  }

  .top-actions {
    gap: 6px;
  }

  .top-actions .secondary-action {
    display: none;
  }

  .simulation-bar {
    grid-area: canvas;
    z-index: 3;
    align-self: end;
    justify-self: center;
    width: min(620px, calc(100% - 16px));
    margin-bottom: 10px;
    padding: 7px;
  }

  .simulation-bar .transport-button span,
  .simulation-bar .solidify-button span,
  .simulation-bar .dry-button span,
  .simulation-bar .wet-button span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .simulation-slider {
    grid-template-columns: minmax(0, 1fr) 4ch;
  }

  .simulation-slider > span:first-child {
    display: none;
  }

  .toolbar {
    grid-template-columns: minmax(190px, 0.42fr) minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr);
    grid-template-areas:
      "head panel"
      "head panel";
    gap: 10px 12px;
  }

  .inspector-header {
    grid-area: head;
    align-items: flex-start;
    flex-direction: column;
    justify-content: flex-start;
  }

  .inspector-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .panel-body {
    grid-area: panel;
  }

  .tab-panel {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 10px 12px;
  }

  .tab-panel .control-group,
  .color-panel .control-group {
    grid-column: 1 / -1;
  }

  .brush-panel .control-grid {
    grid-column: 2;
    grid-row: 1 / span 4;
  }

  .brush-action-grid,
  .no-evaporation-control {
    grid-column: 1;
  }

  .brush-preset {
    padding: 0 8px;
    font-size: 0.68rem;
  }

  .sim-action {
    min-height: 42px;
    padding: 0 8px;
    font-size: 0.68rem;
  }

  .paper-stage {
    width: auto;
    height: min(100%, calc(100vw - 82px), 820px);
  }
}

@media (min-width: 701px) and (max-width: 900px) {
  html.toolbar-minimized .app-shell,
  html:has(.toolbar.minimized) .app-shell,
  html:has(#toolbar-restore:not([hidden])) .app-shell {
    grid-template-rows: 52px minmax(0, 1fr) 82px;
  }

  html.toolbar-minimized .canvas-area,
  html:has(.toolbar.minimized) .canvas-area,
  html:has(#toolbar-restore:not([hidden])) .canvas-area {
    justify-items: start;
  }

  html.toolbar-minimized .paper-stage,
  html:has(.toolbar.minimized) .paper-stage,
  html:has(#toolbar-restore:not([hidden])) .paper-stage {
    width: min(calc(100vw - 82px), calc(100svh - 190px), 820px);
    max-width: calc(100vw - 82px);
    height: auto;
    max-height: calc(100svh - 190px);
    justify-self: start;
  }

  html.toolbar-minimized .simulation-bar,
  html:has(.toolbar.minimized) .simulation-bar,
  html:has(#toolbar-restore:not([hidden])) .simulation-bar {
    grid-area: inspector;
    z-index: 4;
    align-self: center;
    justify-self: start;
    width: min(620px, calc(100% - 226px));
    margin: 0 0 0 66px;
  }

  html.toolbar-minimized .toolbar-restore,
  html:has(.toolbar.minimized) .toolbar-restore,
  html:has(#toolbar-restore:not([hidden])) .toolbar-restore {
    position: static;
    grid-area: inspector;
    align-self: center;
    justify-self: end;
    margin: 0;
    z-index: 5;
  }
}

@media (max-width: 700px) {
  html,
  body {
    height: auto;
    min-height: 100%;
    overflow: auto;
  }

  .app-shell {
    min-width: 0;
    min-height: 100svh;
    height: auto;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
    grid-template-areas:
      "top"
      "rail"
      "canvas"
      "inspector";
    overflow: visible;
  }

  .top-bar {
    grid-template-columns: 1fr;
  }

  .top-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .tool-rail {
    flex-direction: row;
  }

  .rail-section {
    width: auto;
    display: flex;
  }

  .canvas-area {
    min-height: min(90vw, 620px);
  }

  .paper-stage {
    width: 100%;
    height: auto;
  }

  .simulation-bar {
    position: static;
    grid-area: inspector;
    width: 100%;
    margin: 0 0 8px;
    flex-wrap: wrap;
  }

  .toolbar {
    margin-top: 76px;
    grid-template-columns: 1fr;
    grid-template-areas: none;
  }

  .inspector-header,
  .panel-body {
    grid-area: auto;
  }

  .tab-panel,
  .brush-panel .control-grid,
  .brush-action-grid,
  .no-evaporation-control {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .mix-row {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

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