@charset "utf-8";
/* ═══════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #F8F3E7;
  color: #2F3437;
  font-size: 16px;
  line-height: 1.6;
}
a {
  text-decoration: none;
  color: inherit;
}
/* ═══════════════════════════════════════
   BREADCRUMB
═══════════════════════════════════════ */
.breadcrumb {
  background-color: #e8e2d6;
  padding: 10px 24px;
  font-size: 0.85rem;
  color: #555;
  border-bottom: 1px solid #d5cfc5;
}
.breadcrumb a {
  color: #1D3557;
  font-weight: 600;
}
.breadcrumb a:hover {
  text-decoration: underline;
}
.bc-sep {
  margin: 0 6px;
  color: #aaa;
}
.bc-current {
  color: #2F3437;
  font-weight: 600;
}
/* ═══════════════════════════════════════
   PAGE WRAPPER / TITLE
═══════════════════════════════════════ */
.page-wrapper {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 40px;
}
.page-title-block {
  background: linear-gradient(135deg, #1D3557 0%, #2a4d73 100%);
  color: #F8F3E7;
  border-radius: 8px;
  padding: 36px 32px;
  margin-bottom: 28px;
}
.page-title-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #F5B041;
  margin-bottom: 8px;
}
.page-title-main {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}
.page-title-sub {
  font-size: 1rem;
  opacity: 0.85;
  line-height: 1.6;
  max-width: 680px;
}
/* ═══════════════════════════════════════
   ARTICLE
═══════════════════════════════════════ */
.section-art-txt {
  margin: 0 0 28px 0;
  padding: 28px 28px 24px;
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}
.section-art-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #1D3557;
  border-left: 4px solid #E63946;
  padding-left: 12px;
  margin-bottom: 20px;
  line-height: 1.3;
}
.section-art-txt > p {
  font-size: 1rem;
  color: #2F3437;
  line-height: 1.6;
  margin-bottom: 16px;
}
/* ═══════════════════════════════════════
   OUTCOMES LIST
═══════════════════════════════════════ */
.outcomes-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.outcomes-list li {
  font-size: 0.95rem;
  color: #2F3437;
  padding-left: 28px;
  position: relative;
  line-height: 1.55;
}
.outcomes-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: #2E7D52;
  font-weight: 700;
  font-size: 1rem;
}
/* ═══════════════════════════════════════
   KEY PRINCIPLES (HIGHLIGHT SECTION)
═══════════════════════════════════════ */
.highlight-section {
  background: linear-gradient(135deg, #FDEBD0 0%, #ffffff 100%);
  border-left: 5px solid #E63946;
}
.key-principles {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.key-principles li {
  font-size: 0.95rem;
  color: #2F3437;
  padding-left: 30px;
  position: relative;
  line-height: 1.6;
}
.key-principles li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #F5B041;
  font-weight: 700;
  font-size: 1.1rem;
}
/* ═══════════════════════════════════════
   SECTION MAP GRID (lesson cards)
═══════════════════════════════════════ */
.section-map-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.section-map-card {
  display: flex;
  flex-direction: column;
  background: #f9f7f2;
  border: 1px solid #e0dbd2;
  border-top: 4px solid #1D3557;
  border-radius: 8px;
  padding: 20px 18px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.2s, transform 0.15s, border-top-color 0.2s;
}
.section-map-card:hover {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  transform: translateY(-3px);
  border-top-color: #E63946;
}
.smc-number {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #E63946;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.smc-icon {
  font-size: 2rem;
  margin-bottom: 10px;
  line-height: 1;
}
.section-map-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #1D3557;
  margin-bottom: 8px;
  line-height: 1.3;
}
.section-map-card p {
  font-size: 0.88rem;
  color: #555;
  line-height: 1.55;
  flex: 1;
  margin-bottom: 14px;
}
.smc-link {
  font-size: 0.82rem;
  font-weight: 700;
  color: #1D3557;
  margin-top: auto;
}
.section-map-card:hover .smc-link {
  color: #E63946;
}
/* ═══════════════════════════════════════
   DEFINITION CARDS (key terms)
═══════════════════════════════════════ */
.definition-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 8px;
  margin-bottom: 16px;
}
.def-card {
  border-radius: 8px;
  padding: 20px 18px;
  border-top: 5px solid transparent;
}
.def-card--blue {
  background: #EBF2FA;
  border-top-color: #1D3557;
}
.def-card--red {
  background: #FEF0F0;
  border-top-color: #E63946;
}
.def-card--gold {
  background: #FEF9EC;
  border-top-color: #F5B041;
}
.def-card--green {
  background: #F0F7F4;
  border-top-color: #2E7D52;
}
.def-card--slate {
  background: #ECEFF1;
  border-top-color: #455A64;
}
.def-card-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
}
.def-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #1D3557;
}
.def-card p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: #3a3f42;
}
/* ═══════════════════════════════════════
   REGULATION BLOCKS
═══════════════════════════════════════ */
.reg-block {
  border: 1px solid #e0dbd2;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
}
.reg-block-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
}
.reg-hdr--blue {
  background-color: #1D3557;
  color: #F8F3E7;
}
.reg-hdr--green {
  background-color: #2E7D52;
  color: #F8F3E7;
}
.reg-hdr--slate {
  background-color: #455A64;
  color: #F8F3E7;
}
.reg-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}
.reg-block-header h4 {
  font-size: 1rem;
  font-weight: 700;
  flex: 1;
  line-height: 1.3;
}
.reg-block-body {
  padding: 18px 20px;
  background-color: #fdfcfa;
}
.reg-block-body p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #2F3437;
  margin-bottom: 12px;
}
.reg-block-body p:last-child {
  margin-bottom: 0;
}

/* FOOTER NAV */
.main-footer-nav {
  background-color: #1D3557;
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 16px 24px;
  flex-wrap: wrap;
}
.main-footer-nav-btn {
  display: inline-block;
  background-color: #F5B041;
  color: #2F3437;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 24px;
  border-radius: 4px;
  transition: background-color 0.2s;
  text-decoration: none;
}
.main-footer-nav-btn:hover {
  background-color: #F8C471;
}
.site-footer {
  background-color: #2F3437;
  color: #F8F3E7;
  padding: 40px 24px 24px;
}
.footer-container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  color: #F1C40F;
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-col {
  text-align: left;
  color: #F1C40F;
  margin: 0 50px;
}
.footer-col a {
  color: #F1C40F;
  text-decoration: underline;
  transition: opacity 0.2s;
}
.footer-col a:hover {
  opacity: 0.5;
}
.footer-col h3 {
  font-size: 1.05rem;
  color: #F1C40F;
  margin-bottom: 10px;
}
.footer-col p {
  font-size: 0.9rem;
  opacity: 0.8;
  line-height: 1.7;
}
.footer-credit {
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.6;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
/* ═══════════════════════════════════════
   BACK TO TOP
═══════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 999;
  padding: 10px 18px;
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateY(10px);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.section-art-txt[id] {
  scroll-margin-top: 80px;
}
/* ═══════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════ */
@media (max-width: 768px) {
  .page-title-main {
    font-size: 1.5rem;
  }
  .page-title-block {
    padding: 24px 20px;
  }
  .section-art-txt {
    padding: 20px 16px;
  }
  .definition-cards {
    grid-template-columns: 1fr;
  }
  .section-map-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    flex-direction: column;
    gap: 20px;
  }
}
@media (max-width: 480px) {
  .reg-block-header h4 {
    font-size: 0.9rem;
  }
}