:root {
  color-scheme: dark;
  --bg: #10141a;
  --card: #1a212b;
  --text: #f2f5f8;
  --muted: #b7c0cc;
  --line: #314052;
  --accent: #8eb6ff;
  --accent-ink: #081018;
  --danger-bg: #3a2422;
  --danger: #ffb4a8;
  --ok: #b6e3c0;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

button, input, select, textarea { font: inherit; font-size: 1rem; }

button {
  min-height: 3.25rem;
  padding: 0.75rem 1rem;
  border-radius: 0.8rem;
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  touch-action: manipulation;
}

button.secondary {
  background: #243041;
  color: var(--text);
  border-color: var(--line);
}

button:disabled { opacity: 0.45; }

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid #f2f5f8;
  outline-offset: 2px;
}

header, main { padding: 1rem; }

header { padding-bottom: 0; }

h1 {
  font-size: 1.55rem;
  line-height: 1.2;
  margin: 0 0 0.4rem;
}

h2 {
  font-size: 1.05rem;
  margin: 0 0 0.6rem;
}

.wrap { max-width: 42rem; margin: 0 auto; }

.note, .banner, .error, .hint, .status {
  margin: 0.75rem 0;
}

.note, .banner, .error {
  padding: 0.85rem 1rem;
  border-radius: 0.8rem;
  background: var(--card);
  border: 1px solid var(--line);
}

.banner.warn, .error {
  background: var(--danger-bg);
  border-color: #6e3d36;
  color: var(--danger);
}

.hint, .status, .meta { color: var(--muted); }

.meta, .payload, .context { white-space: pre-wrap; }

.row, .actions, .toggles {
  display: grid;
  gap: 0.75rem;
}

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

.actions button.wide, .row button.wide { grid-column: 1 / -1; }

.toggles { margin: 0.75rem 0 0.25rem; }

.switch {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 3rem;
  padding: 0.35rem 0;
}

.switch input {
  width: 1.4rem;
  height: 1.4rem;
  margin: 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 0.9rem;
  margin: 0.9rem 0;
  box-shadow: var(--shadow);
}

pre.scene, pre.log {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

pre.scene {
  min-height: 8rem;
  font-size: 1.15rem;
  line-height: 1.35;
  background: #0c1016;
  border-radius: 0.7rem;
  padding: 0.9rem;
  border: 1px solid var(--line);
}

pre.log {
  max-height: 42vh;
  overflow: auto;
  font-size: 0.78rem;
  line-height: 1.35;
  background: #0c1016;
  border-radius: 0.7rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  user-select: text;
}

.choices { display: grid; gap: 0.65rem; margin-top: 0.75rem; }

.choices button { text-align: left; }

label.field {
  display: grid;
  gap: 0.3rem;
  margin: 0.75rem 0;
}

input[type="text"],
input[type="number"],
select,
textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.65rem 0.75rem;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  background: #0c1016;
  color: var(--text);
}

textarea { min-height: 8rem; resize: vertical; }

details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 0.3rem 0.9rem 0.9rem;
  margin: 0.9rem 0;
}

summary {
  min-height: 3rem;
  display: flex;
  align-items: center;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
}

.uuid {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.ok { color: var(--ok); }

@media (min-width: 720px) {
  header, main { padding: 1.25rem; }
  .actions { grid-template-columns: repeat(3, 1fr); }
  .actions button.wide { grid-column: auto; }
}