:root {
  --bg: #f3f6f8;
  --card: #ffffff;
  --text: #182433;
  --muted: #5e6c84;
  --line: #d8dfeb;
  --brand: #0b5d76;
  --switch-active-bg: #dceff6;
  --switch-active-border: #8fb4c4;
  --switch-active-text: #1d4253;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "IBM Plex Sans KR", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 12%, #fff2cf 0%, transparent 27%),
    radial-gradient(circle at 85% 14%, #d8f1f7 0%, transparent 30%),
    var(--bg);
}

.wrap {
  max-width: 1220px;
  margin: 0 auto;
  padding: 22px 16px 34px;
}

.topnav {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.topnav a {
  text-decoration: none;
  color: #214055;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 8px 12px;
  font: 700 13px "Space Grotesk", sans-serif;
}

.topnav a.active {
  color: #fff;
  border-color: var(--brand);
  background: var(--brand);
}

.hero {
  margin-bottom: 14px;
}

.eyebrow {
  margin: 0;
  font: 700 12px "Space Grotesk", sans-serif;
  color: var(--brand);
  letter-spacing: 0.12em;
}

h1 {
  margin: 6px 0 8px;
  font: 700 42px/1 "Space Grotesk", sans-serif;
}

.desc {
  margin: 0;
  color: var(--muted);
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 10px 24px rgba(17, 28, 44, 0.08);
  margin-bottom: 14px;
}

.controls .row {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 10px;
}

.controls .api-row {
  grid-template-columns: 1fr auto auto;
}

.controls .action-row {
  grid-template-columns: 1fr auto auto auto;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #36465f;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button.ghost {
  background: #fff;
  color: #40516c;
  border: 1px solid var(--line);
}

button.small {
  padding: 8px 10px;
  align-self: end;
}

.status {
  margin: 6px 0 0;
  min-height: 18px;
  color: #3b4c66;
  font-size: 13px;
}

.stage {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.col h2 {
  margin: 0 0 8px;
  font-size: 18px;
  font-family: "Space Grotesk", sans-serif;
}

#inputCanvas,
#resultImg,
#inputImg,
#vqaImagePreview,
#segResultImg,
#maskPreviewImg,
#inpaintResultImg,
#segViewImg {
  width: 100%;
  min-height: 300px;
  border: 1px dashed #bac5d4;
  border-radius: 12px;
  background: #fafdff;
}

#resultImg,
#inputImg,
#vqaImagePreview,
#segResultImg,
#maskPreviewImg,
#inpaintResultImg,
#segViewImg {
  display: block;
  object-fit: contain;
}

.view-switch {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.view-switch button.active {
  background: var(--switch-active-bg);
  color: var(--switch-active-text);
  border-color: var(--switch-active-border);
}

.det-list {
  margin: 0;
  white-space: pre-wrap;
  font-size: 13px;
  color: #2a3b52;
}

.crop-grid {
  margin-top: 8px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.crop-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 8px;
}

.crop-card canvas {
  width: 100%;
  height: auto;
  min-height: 0;
  border-radius: 8px;
  border: 1px solid #e4ebf4;
  background: #fafdff;
  display: block;
}

.crop-meta {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  color: #243953;
}

.crop-box {
  margin: 6px 0 0;
  font-size: 11px;
  color: #6a7a90;
}

.crop-empty {
  margin: 0;
  color: #5e6c84;
  font-size: 13px;
}

.vqa-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: stretch;
}

.vqa-col {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.vqa-col h2 {
  margin: 0 0 8px;
  font-size: 18px;
  font-family: "Space Grotesk", sans-serif;
}

.vqa-col input[type="file"] {
  margin-bottom: 8px;
}

.vqa-ask-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-bottom: 10px;
  align-items: end;
}

.vqa-question-inline {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  min-height: 42px;
}

.vqa-hidden-controls {
  display: none;
}

.vqa-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.answer-box {
  margin: 0;
  min-height: 80px;
  white-space: pre-wrap;
  background: #f7fbff;
  border: 1px solid #d8e3f1;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  color: #1d2a3f;
}

.vqa-col-right .answer-box {
  flex: 1;
}

.inpaint-prompt {
  width: 100%;
  min-height: 110px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
}

.canvas-action-row {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 8px;
  margin-bottom: 8px;
  align-items: end;
}

.canvas-action-row button {
  min-height: 42px;
  white-space: nowrap;
}

.inpaint-main-row {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1.45fr) auto;
  gap: 10px;
  align-items: end;
  margin-bottom: 10px;
}

.inpaint-line {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  min-height: 42px;
  font: inherit;
}

.inpaint-main-row button {
  min-height: 42px;
  white-space: nowrap;
}

.advanced-toggle {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  background: #fff;
}

.advanced-toggle > summary {
  cursor: pointer;
  font: 700 13px "Space Grotesk", sans-serif;
  color: #36465f;
  list-style: none;
}

.advanced-toggle > summary::-webkit-details-marker {
  display: none;
}

.advanced-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 10px;
}

@media (max-width: 980px) {
  h1 { font-size: 34px; }

  .stage {
    grid-template-columns: 1fr;
  }

  .vqa-grid,
  .vqa-row {
    grid-template-columns: 1fr;
  }

  .controls .api-row,
  .controls .action-row,
  .controls .row {
    grid-template-columns: 1fr;
  }

  .vqa-ask-row,
  .canvas-action-row,
  .inpaint-main-row,
  .advanced-grid {
    grid-template-columns: 1fr;
  }

  .vqa-col-right .answer-box {
    flex: none;
  }
}