/* ═══════════════════════════════════════
   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
═══════════════════════════════════════ */
.page-wrapper {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 20px 48px;
}

/* ═══════════════════════════════════════
   PAGE TITLE BLOCK
═══════════════════════════════════════ */
.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;
}

/* ═══════════════════════════════════════
   SECTION 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;
}
.section-art-txt p:last-child { margin-bottom: 0; }

/* ═══════════════════════════════════════
   SUBSECTION TITLE
═══════════════════════════════════════ */
.subsection-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #1D3557;
  margin: 24px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid #e0dbd2;
}

/* ═══════════════════════════════════════
   CHECK LIST
═══════════════════════════════════════ */
.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.check-list li {
  font-size: 0.95rem;
  color: #2F3437;
  padding-left: 24px;
  position: relative;
  line-height: 1.5;
}
.check-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: #2E7D52;
  font-weight: 700;
}

/* ═══════════════════════════════════════
   REGULATION BLOCKS
═══════════════════════════════════════ */
.reg-block {
  border: 1px solid #e0dbd2;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 14px;
}
.reg-block--featured {
  border-width: 2px;
  border-color: #1D3557;
}
.reg-block-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: #F8F3E7;
}
.reg-block-header h4 {
  font-size: 0.97rem;
  font-weight: 700;
  flex: 1;
  line-height: 1.3;
}
.reg-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  width: 22px;
  text-align: center;
}
/* Header colour variants */
.reg-hdr--blue   { background-color: #1D3557; }
.reg-hdr--red    { background-color: #E63946; }
.reg-hdr--orange { background-color: #E67E22; }
.reg-hdr--gold   { background-color: #D4890A; }
.reg-hdr--green  { background-color: #2E7D52; }
.reg-hdr--slate  { background-color: #455A64; }

.reg-block-body {
  padding: 14px 16px;
  background: #fdfcfa;
}
.reg-block-body p {
  font-size: 0.93rem;
  line-height: 1.55;
  color: #2F3437;
  margin-bottom: 10px;
}
.reg-block-body p:last-child { margin-bottom: 0; }
.reg-block-body .check-list { margin-top: 8px; }

/* Featured badge */
.featured-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  background: rgba(255,255,255,0.2);
  padding: 2px 8px;
  border-radius: 12px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════
   DEFINITION CARDS
═══════════════════════════════════════ */
.definition-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 16px;
}
.def-card {
  border-radius: 8px;
  padding: 18px 16px;
  border-top: 4px solid #ccc;
}
.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: #D4890A; }
.def-card--green { background: #EBF5EE; border-top-color: #2E7D52; }
.def-card-icon { font-size: 1.6rem; margin-bottom: 8px; }
.def-card h4 { font-size: 0.97rem; color: #1D3557; margin-bottom: 6px; }
.def-card p  { font-size: 0.88rem; line-height: 1.5; color: #2F3437; margin: 0; }

/* ═══════════════════════════════════════
   DUTY GRID
═══════════════════════════════════════ */
.duty-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}
.duty-card { border-radius: 8px; overflow: hidden; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.duty-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: #F8F3E7;
}
.duty-card-header strong { font-size: 1rem; flex: 1; }
.duty-ref {
  font-size: 0.75rem;
  background: rgba(255,255,255,0.2);
  padding: 2px 8px;
  border-radius: 12px;
  white-space: nowrap;
}
.duty-icon { font-size: 1.3rem; flex-shrink: 0; }
.duty-list {
  list-style: none;
  margin: 0;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.duty-list li {
  font-size: 0.9rem;
  line-height: 1.5;
  color: #2F3437;
  padding-left: 20px;
  position: relative;
}
.duty-list li::before { content: "\2022"; position: absolute; left: 0; color: #aaa; }
.duty-card--blue  .duty-card-header { background-color: #1D3557; }
.duty-card--blue  .duty-list { background: #EBF2FA; }
.duty-card--slate .duty-card-header { background-color: #455A64; }
.duty-card--slate .duty-list { background: #f0f2f3; }
.duty-card--green .duty-card-header { background-color: #2E7D52; }
.duty-card--green .duty-list { background: #EBF5EE; }
.duty-card--orange .duty-card-header { background-color: #E67E22; }
.duty-card--orange .duty-list { background: #FEF6EC; }

/* ═══════════════════════════════════════
   CALLOUT
═══════════════════════════════════════ */
.callout {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border-radius: 8px;
  padding: 16px 18px;
  margin-top: 20px;
}
.callout--tip {
  background-color: #EBF2FA;
  border-left: 4px solid #1D3557;
}
.callout-icon { font-size: 1.4rem; flex-shrink: 0; }
.callout strong { display: block; font-size: 0.9rem; color: #1D3557; margin-bottom: 4px; }
.callout p { font-size: 0.9rem; line-height: 1.55; color: #2F3437; margin: 0; }

/* ═══════════════════════════════════════
   SKILL PILLS
═══════════════════════════════════════ */
.skill-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.skill-pill {
  display: inline-block;
  background: #EBF2FA;
  color: #1D3557;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid #cddcee;
}


/* QUIZ NAV */
.quiz-nav-container {
  text-align: center;
  margin-bottom: 0.75rem;
}

.quiz-nav {
  display: flex;
  justify-content: center;
}

.quiz-nav-btn {
  display: inline-block;
  background-color: #E63946;
  color: #F8F3E7;
  text-decoration: none;
  padding: 0.85rem 1.4rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(29, 53, 87, 0.18);
  border: 2px solid transparent;
}

.quiz-nav-btn:hover {
  background-color: #C92F3B;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(29, 53, 87, 0.24);
}

.quiz-nav-btn:focus {
  outline: none;
  border-color: #F1C40F;
}

/* FOOTER NAV */
.main-footer-nav {
  background-color: #1D3557;
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 16px 24px;
  flex-wrap: wrap;
}
.main-footer-nav-btn {
  background-color: #F5B041;
  color: #2F3437;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 28px;
  border-radius: 4px;
  text-decoration: none;
  transition: background-color 0.2s;
}
.main-footer-nav-btn:hover { background-color: #F8C471; }

/* ═══════════════════════════════════════
   SITE FOOTER
═══════════════════════════════════════ */
.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: 1.6; }
.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); }

/* ═══════════════════════════════════════
   SCROLL MARGIN — ANCHOR TARGETS
═══════════════════════════════════════ */
.section-art-txt[id],
div[id].section-art-txt,
article[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; }
  .section-art-title { font-size: 1rem; }
  .duty-grid { grid-template-columns: 1fr; }
  .definition-cards { grid-template-columns: 1fr; }
  .footer-container { flex-direction: column; gap: 20px; }
}
@media (max-width: 480px) {
  .skill-pills { gap: 6px; }
  .skill-pill { font-size: 0.78rem; padding: 5px 10px; }
}