/* =========================================================
   HANDBOOK · Cẩm nang "Kết nối không tổn thương"
   Nạp sau mobile.css. Chỉ áp dụng cho khối #cam-nang.
   ========================================================= */

.handbook-panel {
  display: grid;
  grid-template-columns: minmax(200px, 280px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(26px, 4.5vw, 56px);
  padding: clamp(22px, 3.6vw, 40px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(254, 205, 165, 0.4), transparent 55%),
    linear-gradient(135deg, #fffdf8 0%, #f7f0e3 100%);
  box-shadow: 0 30px 70px -50px rgba(20, 20, 46, 0.5);
}

.handbook-cover {
  position: relative;
  justify-self: center;
  width: 100%;
  max-width: 280px;
}

.handbook-cover img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 26px 50px -26px rgba(20, 20, 46, 0.55);
  transform: rotate(-1.6deg);
}

.handbook-tag {
  position: absolute;
  left: 10px;
  bottom: 10px;
  z-index: 2;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(20, 20, 46, 0.86);
  color: var(--paper);
  font-family: var(--label);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.handbook-copy h2 {
  margin: 10px 0 14px;
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
}

.handbook-copy .section-lead {
  max-width: 580px;
}

.handbook-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 4px;
  padding: 0;
  list-style: none;
}

.handbook-meta li {
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.7);
  font-family: var(--label);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.handbook-parts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 18px;
  margin: 18px 0 24px;
  padding: 0;
  list-style: none;
}

.handbook-parts li {
  display: flex;
  gap: 9px;
  font-size: 14.5px;
  line-height: 1.45;
  color: var(--ink-2);
}

.handbook-parts b {
  flex: none;
  padding-top: 2px;
  font-family: var(--label);
  font-size: 13px;
  font-weight: 500;
  color: var(--coral-deep);
}

.handbook-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.handbook-actions .btn .icon {
  width: 17px;
  height: 17px;
  flex: none;
}

#cam-nang {
  scroll-margin-top: 96px;
}

.handbook-note {
  margin-top: 14px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--muted);
}

.handbook-note a {
  text-decoration: underline;
}

@media (max-width: 760px) {
  .handbook-panel {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 20px;
    border-radius: 24px;
  }
  .handbook-cover {
    max-width: 200px;
  }
  .handbook-copy h2 {
    font-size: 1.9rem;
  }
  .handbook-parts {
    grid-template-columns: 1fr;
    gap: 7px;
    margin: 16px 0 20px;
  }
  .handbook-parts li {
    font-size: 14px;
  }
  .handbook-actions .btn {
    flex: 1 1 100%;
    min-height: 48px;
  }
  .handbook-note {
    font-size: 12.5px;
  }
}

@media (max-width: 400px) {
  .handbook-cover {
    max-width: 170px;
  }
}