/* ============================================================
   Apex Health · Resilience Series — Site Chrome
   Header, footer, and shell for the guide pages and index.
   ============================================================ */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

.site-shell {
  max-width: 880px;
  margin: 0 auto;
  background: var(--color-background-primary);
  min-height: 100vh;
  box-shadow: 0 0 60px rgba(0,0,0,0.04);
}

/* ───────── Top bar ───────── */
.site-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 24px;
  background: var(--color-background-primary);
  border-bottom: 0.5px solid var(--color-border-tertiary);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(6px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 14px;
  color: var(--color-text-primary);
}
.brand-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
  display: inline-block;
}
.brand-series {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-text-secondary);
  font-weight: 400;
  font-size: 13px;
  margin-left: 2px;
}

.bar-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.bar-link {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 6px 10px;
  border-radius: var(--border-radius-md);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background .15s, color .15s;
}
.bar-link:hover {
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  text-decoration: none;
}
.theme-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 0.5px solid var(--color-border-secondary);
  background: var(--color-background-primary);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all .15s;
}
.theme-btn:hover {
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-primary);
}

/* ───────── Guide footer ───────── */
.site-foot {
  padding: 28px 24px 40px;
  border-top: 0.5px solid var(--color-border-tertiary);
  background: var(--color-background-primary);
  font-size: 12.5px;
  color: var(--color-text-tertiary);
  line-height: 1.6;
}
.site-foot strong {
  font-weight: 500;
  color: var(--color-text-secondary);
}
.site-foot .foot-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.site-foot .foot-row a {
  font-size: 12.5px;
}

/* ───────── Mobile ───────── */
@media (max-width: 720px) {
  .site-shell { box-shadow: none; }
  .site-bar { padding: 12px 16px; }
  .brand-series { display: none; }
  .bar-link span.label { display: none; }
}

/* ───────── Index landing ───────── */
.lp-hero {
  padding: 56px 32px 32px;
  border-bottom: 0.5px solid var(--color-border-tertiary);
}
.lp-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.lp-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 38px;
  line-height: 1.15;
  color: var(--color-text-primary);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.lp-sub {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 620px;
  margin: 0;
}
.lp-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.lp-pills .pill {
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 20px;
  border: 0.5px solid var(--color-border-secondary);
  color: var(--color-text-secondary);
  background: var(--color-background-secondary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.lp-section-title {
  padding: 32px 32px 8px;
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
}

.lp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 8px 32px 24px;
}
@media (min-width: 640px) {
  .lp-grid { grid-template-columns: 1fr 1fr; }
}

.lp-card {
  display: flex;
  flex-direction: column;
  padding: 22px 22px 20px;
  border: 0.5px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-lg);
  background: var(--color-background-primary);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: border-color .15s, transform .15s, box-shadow .15s;
  position: relative;
  overflow: hidden;
}
.lp-card:hover {
  border-color: var(--color-accent);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(24, 95, 165, 0.06);
}
.lp-card-num {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--color-accent);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}
.lp-card-title {
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin: 0 0 6px;
  line-height: 1.3;
}
.lp-card-desc {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin: 0 0 14px;
}
.lp-card-foot {
  margin-top: auto;
  font-size: 12px;
  color: var(--color-text-tertiary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.lp-card.featured {
  background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-background-primary) 70%);
  border-color: var(--color-border-info);
  grid-column: 1 / -1;
}

/* The featured card hosts a different colour treatment for the accent dot */
.lp-overarching {
  margin: 8px 32px 0;
  padding: 16px 18px;
  border: 0.5px dashed var(--color-border-secondary);
  border-radius: var(--border-radius-md);
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  background: var(--color-background-secondary);
}
.lp-overarching strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* ───────── Embedded guide container ───────── */
.guide-frame {
  padding: 0;
  background: var(--color-background-primary);
  color: var(--color-text-primary);
}
.guide-frame .ppr-wrap,
.guide-frame > div { color: var(--color-text-primary); }