:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f4f6f8;
  color: #17202a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 1px solid #9aa7b3;
  background: #ffffff;
  color: #17202a;
  border-radius: 6px;
  padding: 8px 12px;
  cursor: pointer;
}

button:hover {
  background: #edf2f7;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 16px 20px;
  background: #ffffff;
  border-bottom: 1px solid #d9e0e7;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 20px;
}

h2 {
  font-size: 15px;
  margin-bottom: 10px;
}

.topbar p,
.hint,
#status {
  color: #5d6b78;
  font-size: 13px;
}

.capture {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto minmax(180px, auto);
  gap: 12px;
  align-items: end;
  padding: 14px 20px;
  background: #ffffff;
  border-bottom: 1px solid #d9e0e7;
}

.capture label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: #344454;
}

.capture input {
  width: 100%;
  border: 1px solid #9aa7b3;
  border-radius: 6px;
  padding: 9px 10px;
}

.workspace {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 220px minmax(420px, 1fr) 340px;
  gap: 12px;
  padding: 12px;
}

.panel {
  background: #ffffff;
  border: 1px solid #d9e0e7;
  border-radius: 8px;
  padding: 12px;
  min-height: 0;
}

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

.zone-button {
  min-height: 36px;
}

.zone-button.active {
  background: #1f6feb;
  border-color: #1f6feb;
  color: #ffffff;
}

.zone-button.done::after {
  content: " ✓";
}

.actions {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

.canvas-wrap {
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #202832;
  border-radius: 8px;
  overflow: hidden;
}

canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #111820;
  cursor: crosshair;
}

.output-panel {
  display: flex;
  flex-direction: column;
}

textarea {
  flex: 1;
  width: 100%;
  min-height: 420px;
  resize: none;
  border: 1px solid #9aa7b3;
  border-radius: 6px;
  padding: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.45;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 190px minmax(360px, 1fr);
  }

  .output-panel {
    grid-column: 1 / -1;
    min-height: 260px;
  }
}