/* Shared visual treatment for the proposal's informational cards. */
:root {
  --card-accent: #2456c4;
  --card-border: #a5bdec;
  --card-surface: #f0f5ff;
  --card-shadow: 0 8px 20px rgba(28, 65, 131, .12), 0 2px 4px rgba(28, 65, 131, .06);
}

.chapter {
  border-color: #c4d2e9;
  box-shadow: 0 6px 22px rgba(25, 55, 109, .06);
}

.cards, .templates, .levels, .slots, .decisions {
  gap: 18px;
}

.templates, .levels, .slots {
  background: transparent;
  border: 0;
  padding: 0;
}

/* Include every item, including existing last-child/mobile border resets. */
.chapter .fact:nth-child(n) {
  --card-padding: 22px;
  min-width: 0;
  padding: var(--card-padding);
  background: var(--card-surface);
  border: 1px solid var(--card-border);
  border-top: 5px solid var(--card-accent);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
}

.chapter .fact h3 {
  color: #164399;
  font-weight: 800;
}

.chapter .fact p {
  color: #344865;
}

.chapter .cards > .fact h3 {
  margin: calc(-1 * var(--card-padding)) calc(-1 * var(--card-padding)) 18px;
  padding: 14px var(--card-padding) 16px;
  border-radius: 7px 7px 0 0;
  background: var(--card-accent);
  color: #fff;
  font-size: 18px;
  line-height: 1.6;
}

.rows, .roadmap {
  display: grid;
  gap: 14px;
}

.rows .fact h3, .decisions .fact h3 {
  font-size: 17px;
}

.roadmap .fact h3 {
  font-size: 20px;
}

#page-17 .roadmap .fact h3 {
  grid-row: span 4;
}

.chapter .roadmap .fact p:first-of-type {
  color: #132f5a;
}

.levels .fact h3, .slots .fact h3, .templates .fact h3 {
  font-size: 16px;
  margin-bottom: 12px;
}

.levels .fact p, .slots .fact p {
  font-size: 15px;
}

.chapter .dialogue .fact:last-child {
  background: #e4eeff;
  border-color: #8aacdf;
  border-top-color: #2456c4;
}

.dialogue .fact h3 {
  font-size: 15px;
}

.flow, .numbered-flow {
  gap: 14px;
}

.flow li, .numbered-flow li, .engine li {
  background: #edf3ff;
  border: 1px solid var(--card-border);
  border-top: 4px solid var(--card-accent);
  border-radius: 10px;
  box-shadow: var(--card-shadow);
  color: #16345f;
  font-weight: 700;
}

.flow li::before, .numbered-flow li > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin: 0 0 12px;
  border-radius: 50%;
  background: var(--card-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
}

.flow li::before {
  display: flex;
}

.engine {
  background: #eaf1ff;
  border: 1px solid #9db9e9;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
}

.engine h3, .api-band {
  background: #143d80;
  border-radius: 10px;
  box-shadow: 0 5px 14px rgba(20, 61, 128, .18);
}

.engine li {
  background: #fff;
}

.engine > p {
  color: #173f8e;
}

.callout {
  padding: 24px 28px;
  background: linear-gradient(115deg, #102b53, #1b427c);
  border: 1px solid #244f89;
  border-left: 6px solid #6599ff;
  border-radius: 12px;
  box-shadow: 0 9px 24px rgba(14, 40, 84, .18);
}

.callout h3 {
  margin-bottom: 12px;
  color: #c2d9ff;
  font-size: 15px;
  font-weight: 800;
}

.callout p {
  color: #fff;
  font-weight: 600;
}

.table-wrap {
  padding: 18px;
  background: #f1f5ff;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
}

.table-wrap caption {
  color: #244a88;
  font-weight: 700;
}

.table-wrap tbody {
  background: #fff;
}

.table-wrap tbody tr:nth-child(3) {
  background: #dae7ff;
}

.database {
  border: 1px solid var(--card-border);
  border-left: 5px solid var(--card-accent);
  border-radius: 10px;
  background: #e8f0ff;
  color: #164399;
}

@media (max-width: 1100px) {
  .templates, .levels, .slots {
    gap: 14px;
  }
}

@media (max-width: 780px) {
  .cards, .decisions {
    gap: 16px;
  }

  .chapter .fact:nth-child(n) {
    --card-padding: 18px;
  }

  .chapter .cards > .fact h3 {
    font-size: 17px;
    padding-top: 12px;
    padding-bottom: 14px;
    margin-bottom: 15px;
  }

  .roadmap .fact h3 {
    font-size: 18px;
  }

  .callout {
    padding: 21px 20px;
  }

  .table-wrap {
    padding: 12px;
    margin-left: -8px;
    margin-right: -8px;
  }
}

@media (max-width: 480px) {
  .cards, .templates, .levels {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media print {
  .chapter, .chapter .fact:nth-child(n), .flow li, .numbered-flow li,
  .engine, .engine li, .engine h3, .api-band, .callout, .table-wrap {
    box-shadow: none;
  }

  .chapter .fact:nth-child(n), .flow li, .numbered-flow li {
    break-inside: avoid;
    background: #fff;
    border-color: #8195b8;
    border-top-color: #2456c4;
  }

  .chapter .cards > .fact h3, .callout {
    background: #eef3fc;
    color: #0b1f3a;
    print-color-adjust: exact;
  }

  .callout h3, .callout p {
    color: #0b1f3a;
  }
}