.heading {
  padding-top: 30px;
  padding-bottom: 34px;
}
.heading h1 {
  font-size: clamp(28px, 3.6vw, 46px);
}
.studio {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.8fr);
  gap: 30px;
  border-top: 1px solid var(--line);
  padding: 24px 0 32px;
}
.artist {
  min-width: 0;
}
.artist #fly3d {
  width: 100%;
  height: 270px;
  display: block;
  border-radius: 5px;
}
.stage-label {
  font-size: 11px;
  flex-wrap: wrap;
  gap: 8px;
}
.artist p {
  margin: 10px 0;
}
.lesson-actions,
.draw-actions,
.paper-toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.lesson-actions {
  margin-top: 16px;
}
.paper-toolbar {
  justify-content: space-between;
  margin-bottom: 14px;
}
.paper-toolbar label {
  display: flex;
  gap: 8px;
  align-items: center;
}
.paper-toolbar input {
  width: 84px;
}
.papers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
figure {
  margin: 0;
}
figcaption {
  display: flex;
  justify-content: space-between;
  font-weight: 500;
  font-size: 13px;
  margin-bottom: 10px;
}
figcaption span {
  font-size: 10px;
  color: var(--muted);
}
.papers canvas {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 2px 4px 0 #e5e4d9;
  touch-action: none;
}
#reference {
  cursor: crosshair;
}
.drawing-desk {
  min-width: 0;
}
.drawing-metrics {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  margin-top: 16px;
}
.drawing-metrics p {
  font-size: 11px;
  margin: 0 0 12px;
}
.drawing-metrics strong {
  display: block;
  font:
    22px "DM Mono",
    monospace;
  margin-top: 6px;
}
.observation {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.8fr);
  gap: 30px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.observation h2 {
  margin: 0 0 14px;
  font-size: 21px;
}
.observation #vision {
  width: 180px;
  height: 180px;
  background: var(--surface);
  border: 1px solid var(--line);
}
#reaction-map {
  display: block;
  width: 100%;
  height: 340px;
  border-radius: 4px;
}
.reaction-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.reaction-controls label {
  display: flex;
  gap: 8px;
  align-items: center;
}
.drawing-results,
.save-section,
.draw-guide {
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
#comparisons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
#comparisons button {
  white-space: normal;
  text-align: left;
  min-width: 180px;
  flex: 1;
}
#comparisons strong,
#comparisons span {
  display: block;
}
#comparisons span {
  font-size: 12px;
}
#comparisons button[aria-pressed="true"] {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.save-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px;
}
.draw-guide {
  max-width: 850px;
  padding-bottom: 60px;
}
.flow {
  font-size: 17px;
  font-family: "Noto Serif JP", serif;
}
.brain-panel {
  min-width: 0;
}
#error {
  color: var(--accent);
  min-height: 1.6em;
}
.draw-guide h2,
.save-section h2,
.drawing-results h2 {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
}
#learned {
  font-size: 12px;
}
#status {
  font-size: 13px;
}
.file-button:has(input:disabled) {
  border-style: dashed;
  cursor: default;
  color: var(--muted);
}
@media (max-width: 800px) {
  .studio,
  .observation {
    grid-template-columns: minmax(0, 1fr);
  }
  .artist {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 8px 16px;
  }
  .artist .stage-label {
    grid-column: 1/-1;
  }
  .artist #fly3d {
    grid-row: 2/7;
    height: 240px;
  }
  .artist #error {
    grid-column: 1/-1;
  }
  .save-section {
    grid-template-columns: minmax(0, 1fr);
  }
  .observation #vision {
    width: 160px;
    height: 160px;
  }
  .heading {
    padding-top: 24px;
  }
  .papers {
    gap: 10px;
  }
  .paper-toolbar {
    justify-content: flex-start;
  }
  nav {
    gap: 12px;
  }
  .brand span {
    display: none;
  }
}
@media (max-width: 450px) {
  header,
  main {
    padding-left: 16px;
    padding-right: 16px;
  }
  .artist {
    display: block;
  }
  .artist #fly3d {
    height: 220px;
  }
  .papers {
    grid-template-columns: minmax(0, 1fr);
  }
  .drawing-metrics {
    gap: 16px;
  }
  .heading h1 {
    font-size: 29px;
  }
  .brand {
    font-size: 12px;
  }
  nav {
    font-size: 12px;
  }
  .paper-toolbar label {
    font-size: 12px;
  }
  figcaption span {
    font-size: 11px;
  }
  .reaction-controls {
    gap: 8px;
  }
  .reaction-controls select {
    max-width: 150px;
  }
}
.papers figure {
  width: 100%;
  max-width: 320px;
}
.papers {
  justify-items: center;
}
#error:empty {
  border-color: transparent;
}
@media (min-width: 801px) {
  .artist #fly3d {
    height: 230px;
  }
  .heading {
    padding-top: 24px;
    padding-bottom: 24px;
  }
  .heading h1 {
    font-size: 40px;
  }
}

#import {
  display: none;
}