/*
 * cells.css — Portal joinet.org
 * Criado em:     2026-11-13
 * Atualizado em: 2026-11-13 (carrossel dos cadernos na capa)
 * Autor:         João Camargo Neto (com Claude Code)
 *
 * Notebooks of Markdown notes (JOINET, later Campos Serenos) in the
 * help-center style of support.claude.com: a title band, folders as
 * groups of cards, and text pages. Uses the tokens of base.css.
 */

/* ── Title band of the notebook home ── */

.hc-hero {
  padding: 18px 28px; /* was 28px 32px: a bit too tall (João, 13/11) */
  margin-bottom: 28px;
  background: linear-gradient(135deg, var(--accent-dim), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.hc-hero h1 {
  font-size: 1.8rem;
  letter-spacing: -0.3px;
}

.hc-hero p {
  margin-top: 6px;
  color: var(--text-muted);
}

/* ── Folder groups and headers ── */

.hc-folder + .hc-folder {
  margin-top: 40px;
}

.hc-folder h2 {
  font-size: 1.15rem;
}

.hc-folder h2 a {
  color: var(--text);
}

.hc-folder h2 a:hover {
  color: var(--accent);
}

.hc-header {
  margin-bottom: 28px;
}

.hc-header h1 {
  font-size: 1.6rem;
}

.hc-lead {
  margin: 4px 0 16px;
  color: var(--text-muted);
}

/* ── Note cards ── */

.hc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 16px;
}

.hc-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color 0.15s, transform 0.15s;
}

.hc-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.hc-card h3 {
  font-size: 1rem;
}

.hc-card p {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hc-card-more {
  font-size: 0.8rem;
  color: var(--accent);
}

.hc-empty {
  color: var(--text-muted);
}

/* ── Breadcrumb above folder and note pages ── */

.hc-breadcrumb {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.hc-breadcrumb a {
  color: var(--text-muted);
}

.hc-breadcrumb a:hover {
  color: var(--accent);
}

/* ── Extra Markdown elements inside .prose (base.css has the rest) ── */

.prose h3 {
  font-size: 0.95rem;
  margin: 20px 0 6px;
}

.prose ol {
  margin-bottom: 14px;
  padding-left: 22px;
}

.prose li + li {
  margin-top: 4px;
}

.prose blockquote {
  margin: 0 0 14px;
  padding: 4px 16px;
  border-left: 3px solid var(--accent);
  color: var(--text-muted);
}

.prose code {
  padding: 1px 5px;
  background: var(--surface2);
  border-radius: 4px;
  font-size: 0.88em;
}

.prose table {
  width: 100%;
  margin-bottom: 14px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.prose th,
.prose td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.prose hr {
  margin: 24px 0;
  border: none;
  border-top: 1px solid var(--border);
}

/* ── Carousel: newest cells of another notebook ──
 * The track is a horizontal scroll area. "scroll-snap" makes it stop
 * with a card aligned at the left edge, whether moved by the arrows
 * (carousel.js), a trackpad or a finger.
 */

.carousel {
  margin-top: 48px;
}

.carousel-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.carousel-header h2 {
  font-size: 1.15rem;
}

.carousel-header h2 a {
  color: var(--text);
}

.carousel-header h2 a:hover {
  color: var(--accent);
}

.carousel-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.carousel-all {
  margin-right: 8px;
  font-size: 0.85rem;
}

.carousel-arrow {
  width: 2.25rem;
  height: 2.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
}

.carousel-arrow:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.carousel-arrow:disabled {
  opacity: 0.35;
  cursor: default;
}

.carousel-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 18rem;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 4px 2px 12px; /* room for the card's hover lift */
  scrollbar-width: none; /* the arrows replace the scrollbar */
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-track > * {
  scroll-snap-align: start;
}

.carousel-track:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius);
}

@media (max-width: 600px) {
  .carousel-track {
    grid-auto-columns: 82%; /* the next card peeks in: "swipe me" */
  }

  .carousel-arrow {
    display: none; /* swipe instead */
  }
}