:root {
  color-scheme: dark;
  --bg: #0f1419;
  --panel: #17212b;
  --panel-strong: #1d2a36;
  --text: #ecf2f8;
  --muted: #9fb0bf;
  --accent: #ffcc72;
  --line: #2c3e50;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(95, 168, 255, 0.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(255, 204, 114, 0.08), transparent 26%),
    var(--bg);
  color: var(--text);
  font: 15px/1.5 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-shell {
  width: min(1200px, calc(100vw - 32px));
  margin: 24px auto;
  display: grid;
  gap: 16px;
}

.toolbar,
.status-card,
.preview-card,
.notes-card {
  background: rgba(23, 33, 43, 0.92);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

.toolbar {
  padding: 16px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: end;
}

.toolbar-group {
  display: grid;
  gap: 6px;
  min-width: 220px;
}

.toolbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

label,
.notes-card h2 {
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

select,
button {
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  color: var(--text);
  padding: 0 14px;
  font: inherit;
}

button {
  cursor: pointer;
  background: linear-gradient(180deg, rgba(255, 204, 114, 0.18), rgba(255, 204, 114, 0.08));
}

.status-card,
.notes-card {
  padding: 18px 20px;
}

.status-card h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.status-card p,
.notes-card p {
  margin: 0;
  color: var(--muted);
}

.preview-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
  gap: 16px;
}

.preview-card {
  padding: 20px;
  min-height: 420px;
  display: grid;
  place-items: center;
}

#preview-image {
  max-width: 100%;
  height: auto;
  image-rendering: pixelated;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #0b1015;
}

@media (max-width: 900px) {
  .preview-layout {
    grid-template-columns: 1fr;
  }
}