.book-page {
  padding: 36px 0 72px;
}

.book-shell {
  display: grid;
  gap: 22px;
  max-width: 880px;
}

.book-hero h1 {
  margin: 8px 0 10px;
  font-size: 36px;
  letter-spacing: -0.04em;
}

.book-hero p {
  margin: 0;
  color: #5A6B80;
  max-width: 36em;
}

.book-card,
.book-aside {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #d4deea;
  border-radius: 20px;
  padding: 24px 26px 26px;
  box-shadow: 0 12px 32px rgba(11, 31, 58, 0.06);
}

.book-form,
.book-form .book-grid {
  display: grid;
  gap: 14px;
}

.book-grid {
  grid-template-columns: 1fr 1fr;
}

.book-form label,
.book-slots-label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #1E3148;
}

.book-form input:not([type="checkbox"]):not([type="radio"]),
.book-form textarea,
.book-form select {
  border: 1px solid #d4deea;
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  color: #0E1A2B;
}

.book-types {
  border: 0;
  padding: 0;
  margin: 0 0 6px;
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.book-types legend {
  font-weight: 800;
  margin-bottom: 8px;
}

.book-type {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid #d4deea;
  border-radius: 14px;
  background: #fff;
  font-weight: 600;
}

.book-type small {
  display: block;
  color: #5A6B80;
  font-weight: 600;
  margin-top: 2px;
}

.book-type:has(input:checked) {
  border-color: #0B1F3A;
  box-shadow: 0 0 0 2px rgba(11, 31, 58, 0.12);
}

.slot-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.slot-pill {
  border: 1px solid #d4deea;
  background: #fff;
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 700;
  font-size: 13px;
  color: #0B1F3A;
  cursor: pointer;
}

.slot-pill.is-on {
  background: #0B1F3A;
  color: #fff;
  border-color: #0B1F3A;
}

.book-hint,
.opt {
  font-weight: 600;
  color: #5A6B80;
  font-size: 12px;
}

.book-facts {
  display: grid;
  gap: 12px;
  margin: 16px 0;
}

.book-facts dt {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #5A6B80;
}

.book-facts dd { margin: 4px 0 0; font-weight: 600; }

.book-aside h2 { margin: 0 0 8px; font-size: 18px; }
.book-aside p { margin: 0 0 8px; }

@media (max-width: 720px) {
  .book-page { padding: 20px 0 48px; }
  .book-hero h1 { font-size: 28px; }
  .book-card,
  .book-aside { padding: 18px 16px 20px; }
  .book-grid,
  .book-types { grid-template-columns: 1fr; }
  .slot-pill { min-height: 44px; }
}