.td-book{ background: var(--td-bg, #f6fbff); padding: 22px 0 42px; }
.td-wrap{ width: min(1200px, calc(100% - 28px)); margin-inline:auto; }

.td-hero{ padding: 6px 0 14px; }
.td-h1{
  margin:0;
  color: var(--td-blue, #093a5a);
  font-weight: 950;
  letter-spacing: -.02em;
  font-size: clamp(28px, 3.2vw, 44px);
}
.td-sub{ margin:10px 0 0; color: rgba(9,58,90,.72); max-width: 70ch; }

.td-tabs{ margin-top: 14px; display:flex; gap:10px; flex-wrap:wrap; }
.td-tab{
  border:1px solid rgba(9,58,90,.14);
  background: rgba(255,255,255,.92);
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 900;
  letter-spacing: .10em;
  text-transform: uppercase;
  font-size: 12px;
  cursor:pointer;
}
.td-tab.is-active{
  border-color: rgba(32,162,196,.34);
  background: rgba(32,162,196,.12);
}

.td-panel{ display:none; }
.td-panel.is-active{ display:block; }

.td-grid{
  display:grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  padding-top: 10px;
}

.td-cat-card{
  display:block;
  border-radius: 18px;
  overflow:hidden;
  border:1px solid rgba(9,58,90,.14);
  background: rgba(255,255,255,.92);
  box-shadow: 0 18px 50px rgba(0,0,0,.08);
  text-decoration:none;
  color: inherit;
}
.td-cat-media{ position:relative; }
.td-cat-img, .td-cat-fallback{
  width:100%;
  display:block;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.td-cat-fallback{
  background: linear-gradient(135deg, rgba(32,162,196,.22), rgba(9,58,90,.14));
}
.td-cat-chip{
  position:absolute;
  left: 12px; bottom: 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.92);
  color: rgba(9,58,90,.92);
  font-weight: 900;
  letter-spacing:.10em;
  text-transform:uppercase;
  font-size: 12px;
  box-shadow: 0 12px 28px rgba(0,0,0,.16);
}
.td-cat-body{ padding: 14px 14px 16px; }
.td-cat-title{
  margin:0;
  color: rgba(9,58,90,.95);
  font-weight: 950;
  letter-spacing:.02em;
  font-size: 16px;
}
.td-cat-desc{ margin:8px 0 0; color: rgba(9,58,90,.72); line-height: 1.65; font-size: 13px; }

.td-empty{
  padding: 16px;
  border-radius: 18px;
  border:1px solid rgba(9,58,90,.12);
  background: rgba(255,255,255,.9);
  color: rgba(9,58,90,.75);
}

.td-sectionTop{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top: 10px;
}
.td-sectionTitle{
  margin: 0;
  color: rgba(9,58,90,.95);
  font-weight: 950;
  letter-spacing: -.01em;
  font-size: 18px;
}
.td-sectionBtn{
  display:inline-flex;
  align-items:center;
  padding: 10px 12px;
  border-radius: 999px;
  border:1px solid rgba(9,58,90,.14);
  background: rgba(255,255,255,.92);
  color: rgba(9,58,90,.92);
  text-decoration:none;
  font-weight: 900;
  letter-spacing: .10em;
  text-transform: uppercase;
  font-size: 12px;
}