/* The slot-engine demo's own styles.
 *
 * Everything structural -- the surface, the type, the cards, the departure
 * board, the slot chips, the buttons, the fields -- comes from
 * static/css/style.css, copied here by tools/build_static.py from the file
 * the Flask app serves. This file only adds what a page that does not exist
 * in the Flask app needs: the banner, a two-column layout, and a handful of
 * read-only rows.
 *
 * style.css opens with an @import of three Google fonts. Over https that
 * works; over file:// it quietly fails and the page falls back to the system
 * stack named beside each one, which is why --font-body ends in
 * system-ui, sans-serif. The layout does not depend on the webfonts loading.
 */

.demo-body { padding-bottom: 3rem; }

.demo-head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 1.5rem 2.5rem 0;
  flex-wrap: wrap;
}
.demo-head .brand.sub { margin: 0; }

.demo-banner {
  margin: 1.25rem 2.5rem 0;
  padding: 1.1rem 1.35rem;
  border: 1px solid rgba(217, 164, 65, 0.42);
  border-left: 3px solid var(--brass);
  border-radius: var(--radius-m);
  background: rgba(217, 164, 65, 0.07);
  max-width: 1100px;
}
.demo-banner p {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--parchment-dim);
}
.demo-banner p:last-child { margin-bottom: 0; }
.demo-banner b { color: var(--parchment); }
.demo-provenance { font-size: 0.83rem !important; color: var(--muted) !important; }
.demo-banner code, .demo-note code, .demo-foot code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  color: var(--teal-strong);
}

.demo-main { max-width: 1100px; padding-top: 1.5rem; }

.demo-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 900px) {
  .demo-columns { grid-template-columns: minmax(0, 1fr); }
  .demo-head, .demo-banner { margin-left: 1rem; margin-right: 1rem; padding-left: 1rem; }
  .demo-main { padding: 1.5rem 1rem 0; }
}

.demo-output .board { margin-bottom: 1.25rem; }

.demo-note {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
  margin: 0 0 1rem;
}

.demo-add { margin-top: 1rem; padding-top: 1rem; border-top: 1px dashed var(--border); }
.demo-add .field input[type="number"] { width: 5.5rem; }
.demo-add .field input[type="text"] { width: 5.5rem; }

/* A row of the three tables, read back. Deliberately plain: these are rows,
 * not controls, and the only thing you can do to one is take it away. */
.demo-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}
.demo-row:last-child { border-bottom: none; }
.demo-row .when {
  font-family: var(--font-mono);
  color: var(--parchment-dim);
  font-size: 0.82rem;
}
.demo-row .label { color: var(--muted); font-size: 0.78rem; }
.demo-row .spacer { flex: 1; }
.demo-drop {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: var(--radius-s);
  cursor: pointer;
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  line-height: 1.4;
}
.demo-drop:hover { border-color: var(--clay); color: var(--clay-strong); }

.demo-empty { color: var(--muted); font-size: 0.82rem; padding: 0.5rem 0; }

/* The slot chips on this page are not buttons: there is nothing to book. */
.demo-output .slot-chip { cursor: default; }
.demo-output .slot-chip:hover { background: var(--panel-alt); color: var(--parchment-dim); }
.demo-output .slot-chip:active { transform: none; }

.demo-trace ul { margin: 0; padding-left: 1.1rem; }
.demo-trace li {
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.7;
}
.demo-trace li b { color: var(--parchment-dim); font-family: var(--font-mono); font-weight: 500; }

.demo-answer {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin: 0.9rem 0 0;
  color: var(--parchment-dim);
}
.demo-answer.yes { color: var(--teal-strong); }
.demo-answer.no { color: var(--clay-strong); }

.demo-problem {
  margin-top: 0.9rem;
  font-size: 0.82rem;
  color: var(--clay-strong);
  font-family: var(--font-mono);
}

.demo-foot {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}
.demo-foot p { margin: 0; }

/* The "what this belongs to" section. The banner explains what the page is
   not; this explains what it is part of, which a first-time reader needs
   just as much. */
.demo-about {
  margin-top: 2rem;
}
.demo-about-list {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  line-height: 1.65;
}
.demo-about-list li {
  margin-bottom: 0.7rem;
}
.demo-about-list li:last-child {
  margin-bottom: 0;
}

/* The calendar still, linked from the section above. Bounded so a wide
   screen does not blow it up past its own pixel width. */
.demo-shot {
  display: block;
  max-width: 100%;
  width: 840px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 0.4rem 0 0;
}