.book-pop {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 28px 20px;
  box-sizing: border-box;
}

.book-pop[hidden] {
  display: none;
}

.book-pop-back {
  position: absolute;
  inset: 0;
  background: rgba(8, 28, 64, 0.58);
  backdrop-filter: blur(6px);
}

.book-pop-panel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: min(720px, 100%);
  max-height: min(88vh, 840px);
  min-height: 0;
  overflow: hidden;
}

.book-pop-x {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 3;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: #eef4fb;
  color: var(--navy);
  display: grid;
  place-items: center;
  cursor: pointer;
  flex: none;
}

.book-pop-x svg {
  width: 18px;
  height: 18px;
}

.book-pop-x:hover {
  background: #dce8f6;
}

.book-card {
  margin: 0;
  min-height: 0;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  padding: 0;
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(8, 28, 64, 0.28);
  color: var(--navy);
  overflow: hidden;
}

.book-card-head {
  flex: none;
  padding: 22px 58px 8px 26px;
}

.book-card-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 8px 26px 16px;
}

.book-card-actions {
  flex: none;
  padding: 14px 26px calc(16px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid #e6eef8;
  background: #fff;
}

body.book-open {
  overflow: hidden;
}

.book-card h3 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.book-card-head p {
  margin: 0;
  color: #4a5a78;
  font-size: 14px;
  line-height: 1.5;
}

.book-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
}

.book-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: #33425f;
}

.book-card input,
.book-card select,
.book-card textarea {
  height: 44px;
  border: 1px solid #d5e1f0;
  border-radius: 14px;
  padding: 0 12px;
  font: 500 14px/1.4 "Plus Jakarta Sans", system-ui, sans-serif;
  color: #1c2a44;
  background: #f7fbff;
}

.book-card textarea {
  height: auto;
  padding: 10px 12px;
  resize: vertical;
}

.book-card .wide {
  grid-column: 1 / -1;
}

.book-card .hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.book-card .ack {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
  color: #33425f;
}

.book-card .ack input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex: none;
}

.book-card button[type="submit"] {
  border: 0;
  cursor: pointer;
  width: 100%;
  height: 50px;
  padding: 0 26px;
  font-size: 15px;
}

.book-card button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: wait;
}

.book-msg {
  margin: 10px 0 0;
  font-size: 14px;
  font-weight: 600;
}

.book-msg.ok {
  color: #3d7a12;
}

.book-msg.err {
  color: #b42318;
}

@media (max-width: 900px) {
  .book-pop {
    padding: 22px 16px;
  }

  .book-pop-panel {
    max-height: min(90vh, 860px);
  }
}

@media (max-width: 700px) {
  .book-pop {
    place-items: center;
    padding: 18px 14px;
    inset: 0;
  }

  .book-pop-panel {
    width: 100%;
    max-height: min(88dvh, 820px);
  }

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

  .book-card {
    border-radius: 22px;
  }

  .book-card-head {
    padding: 18px 54px 6px 16px;
  }

  .book-card-scroll {
    padding: 6px 16px 12px;
  }

  .book-card-actions {
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  }

  .book-card h3 {
    font-size: 20px;
  }
}