:root {
  --border: #ccc;
  --accent: #1a3c6e;
  --bg-muted: #f5f5f5;
  --text: #222;
}

* { box-sizing: border-box; }

body {
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--text);
  margin: 0;
  padding: 0;
  background: #fff;
}

#app { max-width: 720px; margin: 0 auto; padding: 1rem; }

#app-header { margin-bottom: 1.5rem; }
#app-header h1 { font-size: 1.2rem; margin: 0 0 0.5rem; }

#breadcrumb {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #888;
}
#breadcrumb li::after { content: "›"; margin-left: 0.5rem; }
#breadcrumb li:last-child::after { content: ""; }
#breadcrumb li.current { color: var(--accent); font-weight: bold; }

.screen { padding: 0.5rem 0; }

.screen > h2 { font-size: 1.05rem; border-bottom: 2px solid var(--accent); padding-bottom: 0.3rem; }

.status-msg {
  background: #fdecea;
  border: 1px solid #e0a4a4;
  color: #942;
  padding: 0.75rem;
  border-radius: 4px;
}

.field { margin: 1rem 0; }
.field label, .field legend { display: block; font-weight: bold; margin-bottom: 0.3rem; }
.field select, .field input[type=number] {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 1rem;
}

.choice-label { display: block; margin: 0.3rem 0; font-weight: normal; }

.nav-row { display: flex; justify-content: space-between; gap: 0.5rem; margin-top: 1.5rem; }

#screen-output .nav-row {
  position: sticky; top: 0; z-index: 20;
  margin-top: 0; padding: 0.75rem 0; background: #fff;
  border-bottom: 1px solid var(--border);
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  cursor: pointer;
}
button:disabled { background: #aaa; cursor: not-allowed; }
button#btn-town-next, button#btn-card-back, button#btn-questions-back, button#btn-output-back {
  background: #666;
}

.card-list { display: grid; gap: 0.75rem; margin: 1rem 0; }
.card-btn {
  text-align: left;
  background: var(--bg-muted);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
}
.card-btn .card-title { font-weight: bold; color: var(--accent); }
.card-btn .card-desc { font-size: 0.85rem; color: #555; margin-top: 0.25rem; }

.layer { margin: 1.5rem 0; border-top: 1px solid var(--border); padding-top: 1rem; }
.layer h3, .layer summary { font-size: 1rem; font-weight: bold; cursor: pointer; }
.layer-body { margin-top: 0.5rem; }
.block { margin-bottom: 0.75rem; }
.block-heading { font-weight: bold; }

#layer0 { border-top: none; padding-top: 0; }
#layer0 .layer-body { font-size: 0.95rem; color: #444; }

#agenda-text-block {
  margin-top: 1rem;
  background: var(--bg-muted);
  border: 1px dashed var(--border);
  padding: 0.75rem;
}
#agenda-text-block h4 { margin: 0 0 0.5rem; font-size: 0.9rem; }
#agenda-text-content {
  white-space: pre-wrap;
  font-family: inherit;
  margin: 0 0 0.5rem;
}

details.layer > summary { list-style: none; }
details.layer > summary::-webkit-details-marker { display: none; }
details.layer > summary::before { content: "▶ "; }
details.layer[open] > summary::before { content: "▼ "; }