:root {
  color-scheme: dark;
  --bg: #0a0d12;
  --card: #121722;
  --card-2: #171e2b;
  --text: #edf3ff;
  --muted: #9ba8bb;
  --accent: #6aa6ff;
  --danger: #ff6a6a;
  --line: #263246;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app {
  display: grid;
  grid-template-columns: minmax(340px, 440px) minmax(420px, 1fr);
  gap: 16px;
  min-height: 100vh;
  padding: 16px;
}

.panel,
.preview-card,
.output-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.panel {
  grid-row: span 2;
}

h1,
h2 {
  margin: 0 0 10px;
}

h1 {
  font-size: 24px;
}

h2 {
  font-size: 18px;
}

.muted,
.hint,
.status {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.status {
  margin: -4px 0 12px;
}

label {
  display: block;
  margin: 12px 0;
  color: var(--muted);
  font-size: 13px;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  color: var(--text);
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 10px;
}

textarea {
  min-height: 260px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.45;
}

button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 13px;
  color: var(--text);
  background: var(--card-2);
  cursor: pointer;
}

button:hover,
button.active {
  border-color: var(--accent);
  color: white;
}

.grid {
  display: grid;
  gap: 12px;
}

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

.options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
  margin: 12px 0;
}

.options label {
  margin: 0;
}

.options input {
  width: auto;
  margin: 0 6px 0 0;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
}

.regions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

pre {
  min-height: 48px;
  margin: 6px 0 0;
  padding: 10px;
  overflow: auto;
  color: #cfe0ff;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 12px;
}

.preview {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #02040a;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.preview video,
.preview canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.preview video {
  object-fit: contain;
}

.preview canvas {
  cursor: crosshair;
}

.preview.interact canvas {
  cursor: default;
  pointer-events: none;
}

.empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  color: var(--muted);
  text-align: center;
  pointer-events: none;
}

.output-card {
  min-height: 430px;
}

.output-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#filterOutput {
  min-height: 72px;
}

@media (max-width: 980px) {
  .app {
    grid-template-columns: 1fr;
  }

  .panel {
    grid-row: auto;
  }
}

@media (max-width: 640px) {
  .grid.two,
  .options,
  .regions {
    grid-template-columns: 1fr;
  }
}