/* =============================================
   Materiais Didáticos — estilos da página
   Herda tokens e header de ../style.css
   Fontes e cores: sistema do hub
   ============================================= */

/* Override do fundo do hub — mantém o gradiente peach da página */
body {
  background:
    radial-gradient(ellipse 60% 50% at 8% 35%, #F7DDD6 0%, rgba(247,221,214,0) 70%),
    radial-gradient(ellipse 70% 60% at 0% 80%, #E8DDEB 0%, rgba(232,221,235,0) 65%),
    linear-gradient(110deg, #FDF1ED 0%, #FBEAE4 35%, #F6E2DC 60%, #F0E4EA 100%);
  background-attachment: fixed;
}

/* Foto Isabella — âncora à direita, desfocada nas bordas */
.page-bg {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 55%;
  max-width: 780px;
  z-index: 0;
  pointer-events: none;
  background-image: url('assets/bg-isabella.jpg');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 0.85;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.25) 18%, rgba(0,0,0,0.7) 45%, #000 80%);
          mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.25) 18%, rgba(0,0,0,0.7) 45%, #000 80%);
}
.page-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(253,241,237,0.55) 0%, rgba(253,241,237,0) 40%),
    linear-gradient(180deg, rgba(253,241,237,0.12) 0%, rgba(240,228,234,0.18) 100%);
}

/* Conteúdo principal */
.lib-page {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: calc(var(--header-height) + 56px) 32px 80px;
}

/* Hero */
.lib-hero {
  max-width: 560px;
  margin-bottom: 8px;
}

/* Breadcrumb */
.lib-crumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 18px;
}
.lib-crumb a {
  color: inherit;
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.lib-crumb a:hover { opacity: 1; }
.lib-crumb .dash {
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

/* Título */
.lib-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 52px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--on-surface);
  margin: 0 0 22px;
}

/* Lede */
.lib-lede {
  font-family: var(--font-body);
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--on-surface-medium);
  max-width: 620px;
  margin: 0 0 14px;
}
.lib-highlight {
  background: rgba(var(--primary-rgb), 0.10);
  color: var(--primary);
  padding: 2px 10px;
  border-radius: 20px;
  font-weight: 600;
  white-space: nowrap;
}
.lib-highlight.lav {
  background: rgba(103, 85, 140, 0.10);
  color: var(--secondary);
}
.lib-lede-italic {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 300;
  font-size: 1rem;
  color: var(--secondary);
  max-width: 620px;
  margin: 14px 0 0;
}

/* Section title */
.lib-section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 800;
  margin: 56px 0 20px;
}
.lib-section-title .dash {
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

/* Filter pills */
.lib-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.filter-pill {
  appearance: none;
  border: 1px solid rgba(0,0,0,0.08);
  background: var(--white);
  color: var(--on-surface-medium);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.filter-pill:hover {
  color: var(--primary);
  border-color: var(--primary-light);
}
.filter-pill.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.pill-count {
  display: inline-block;
  font-size: 10px;
  opacity: 0.7;
  margin-left: 4px;
}
.filter-pill.active .pill-count { opacity: 0.85; }

/* Library grid */
.lib-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

/* Cards */
.pdf-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: var(--border-radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: var(--shadow-soft);
}
.pdf-card:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-medium);
}

/* Cover — aspect-ratio 3:4 */
.pdf-cover {
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--surface);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(0,0,0,0.04);
  padding: 14px;
}
.pdf-cover img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 8px 22px rgba(0,0,0,0.10), 0 2px 4px rgba(0,0,0,0.06);
  background: var(--white);
  border-radius: 3px;
}
.pdf-cover-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 24px;
  height: 100%;
}
.fallback-category {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--secondary-light);
  font-weight: 800;
}
.fallback-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--on-surface);
}
.fallback-hint {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--on-surface-medium);
  font-style: italic;
  font-weight: 300;
}

/* Card body */
.pdf-body {
  padding: 22px 22px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.pdf-eyebrow {
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--secondary-light);
  font-weight: 800;
  display: block;
  margin-bottom: 6px;
}
.pdf-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--secondary);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.pdf-desc {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--on-surface-medium);
  margin: 0 0 18px;
  flex: 1;
  font-weight: 400;
}
.pdf-meta {
  display: flex;
  gap: 14px;
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--on-surface-medium);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
  font-weight: 400;
}
.pdf-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* Download button — padrão card-cta do hub */
.btn-download {
  appearance: none;
  border: none;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 12px 18px;
  border-radius: 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
  text-decoration: none;
  width: 100%;
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.25);
}
.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(var(--primary-rgb), 0.35);
}
.btn-download svg { flex-shrink: 0; }

/* Toast */
.lib-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--on-surface);
  color: var(--white);
  padding: 12px 20px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.02em;
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.lib-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Closing phrase */
.lib-closing {
  text-align: center;
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 300;
  color: var(--secondary);
  font-size: 1rem;
  margin: 72px 0 0;
}

/* Footer */
.hub-footer {
  position: relative;
  z-index: 1;
}

/* Responsive */
@media (max-width: 1024px) {
  .lib-grid { grid-template-columns: repeat(2, 1fr); }
  .lib-title { font-size: 38px; }
  .lib-page { padding: calc(var(--header-height) + 36px) 20px 60px; }
  .page-bg {
    width: 100%;
    opacity: 0.28;
    -webkit-mask-image: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.6) 40%, #000 100%);
            mask-image: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.6) 40%, #000 100%);
  }
}
@media (max-width: 600px) {
  .lib-grid { grid-template-columns: 1fr; }
  .lib-title { font-size: 2rem; }
  .lib-page { padding: calc(var(--header-height) + 24px) 20px 60px; }
}