.app {
  padding: 0 24px 48px;
  text-align: left;
}

.intro {
  margin: 0 0 32px;
  max-width: 52ch;
}

.demo-section {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.demo-section:last-child {
  border-bottom: none;
}

.hint {
  margin: 0 0 16px;
  font-size: 0.95rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.demo-section > button {
  margin-bottom: 8px;
}

button {
  font: inherit;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background: var(--accent-bg);
  color: var(--text-h);
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
}

.demo-popover {
  margin-top: 16px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--code-bg);
  box-shadow: var(--shadow);
  max-width: 280px;
}

.demo-popover::backdrop {
  background: transparent;
}

.demo-dialog {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  max-width: min(420px, 90vw);
}

.demo-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}

.demo-dialog p {
  margin: 0 0 16px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  cursor: pointer;
}

.result {
  margin-top: 12px;
  font-size: 0.95rem;
}

.event-log {
  margin: 12px 0 0;
  padding-left: 20px;
  font-family: var(--mono);
  font-size: 14px;
}

.event-log li {
  margin-bottom: 4px;
}

.custom-target {
  margin-top: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--code-bg);
  transition:
    background 0.2s,
    border-color 0.2s;
}

.custom-target p {
  margin: 0 0 8px;
}

.custom-target p:last-child {
  margin-bottom: 0;
}

.custom-target--highlight {
  border-color: var(--accent-border);
  background: var(--accent-bg);
}