/* ═══════════════════════════════════════
   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: 720px;
}

/* ═══════════════════════════════════════
   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,
.section-art-txt p {
  font-size: 1rem;
  color: #2F3437;
  line-height: 1.6;
  margin-bottom: 16px;
}

/* ═══════════════════════════════════════
   HAZARD NAVIGATION GRID
═══════════════════════════════════════ */
.hazard-nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 8px;
}
.hazard-nav-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 10px;
  border-radius: 8px;
  text-align: center;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s;
  color: #F8F3E7;
}
.hazard-nav-card:hover { opacity: 0.88; transform: translateY(-2px); }
.hazard-nav-icon { font-size: 1.4rem; }
.hazard-nav-num  { font-size: 0.72rem; font-weight: 700; opacity: 0.8; }
.hazard-nav-label { font-size: 0.82rem; font-weight: 700; line-height: 1.3; }
.hazard-nav-card--red   { background-color: #E63946; }
.hazard-nav-card--orange { background-color: #E67E22; }
.hazard-nav-card--gold  { background-color: #D4890A; }
.hazard-nav-card--slate { background-color: #455A64; }
.hazard-nav-card--blue  { background-color: #1D3557; }
.hazard-nav-card--green { background-color: #2E7D52; }

/* ═══════════════════════════════════════
   CHECK LIST
═══════════════════════════════════════ */
.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.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:last-child { margin-bottom: 0; }
.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: 1.1rem; flex-shrink: 0; width: 22px; text-align: center; }
.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: 16px 18px; background: #fdfcfa; }
.reg-block-body > p {
  font-size: 0.93rem;
  line-height: 1.55;
  color: #2F3437;
  margin-bottom: 10px;
}
.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;
}

/* ═══════════════════════════════════════
   FALL PROTECTION HIERARCHY GRID
═══════════════════════════════════════ */
.fall-protection-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}
.fp-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  border-radius: 8px;
  padding: 16px 18px;
}
.fp-rank {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
  color: #F8F3E7;
  background: rgba(0,0,0,0.18);
  border-radius: 6px;
  padding: 6px 0;
}
.fp-content strong {
  display: block;
  font-size: 0.97rem;
  margin-bottom: 4px;
}
.fp-content p {
  font-size: 0.88rem;
  line-height: 1.5;
  margin: 0;
}
/* Colour gradient: most preferred = green, least = red-grey */
.fp-card--1 { background-color: #0D1F30; color: #F8F3E7; }
.fp-card--2 { background-color: #1D3557; color: #F8F3E7; }
.fp-card--3 { background-color: #1A5276; color: #F8F3E7; }
.fp-card--4 { background-color: #1F618D; color: #F8F3E7; }

/* ═══════════════════════════════════════
   CALLOUT
═══════════════════════════════════════ */
.callout {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border-radius: 8px;
  padding: 14px 16px;
}
.callout--tip {
  background-color: #EBF2FA;
  border-left: 4px solid #1D3557;
}
.callout-icon { font-size: 1.3rem; flex-shrink: 0; }
.callout strong { display: block; font-size: 0.88rem; color: #1D3557; margin-bottom: 3px; }
.callout p { font-size: 0.88rem; line-height: 1.5; color: #2F3437; margin: 0; }


/* 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
═══════════════════════════════════════ */
.section-art-txt[id], div[id].section-art-txt, article[id], div[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; }
  .hazard-nav-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-container { flex-direction: column; gap: 20px; }
  .fp-card { gap: 12px; }
}
@media (max-width: 480px) {
  .hazard-nav-grid { grid-template-columns: 1fr 1fr; }
  .fp-rank { width: 28px; font-size: 1.2rem; }
}