/* ── DESIGN TOKENS ──────────────────────────────────────────────────────────── */
:root {
  --bg:            #F4F6F9;
  --surface:       #FFFFFF;
  --border:        #D6DCE6;
  --radius:        12px;
  --radius-sm:     8px;
  --radius-lg:     16px;
  --primary:       #0F5EA8;
  --primary-bg:    #EAF3FF;
  --primary-dark:  #0d4f8f;
  --accent:        #0F5EA8;
  --draft-bg:      #FFFBF2;
  --draft-border:  #E8C97A;
  --draft-color:   #92600a;
  --tier1-bg:      #FEECEC;
  --tier1-color:   #b71c1c;
  --text:          #1A2332;
  --text-secondary:#44546A;
  --text-muted:    #6B7A90;
  --section-gap:   32px;
  /* Navigation */
  --nav-height:    48px;
  /* Disclaimer removed — kept at 0 so legacy calc()s still resolve */
  --disclaimer-height: 0px;
  /* Glass & elevation */
  --glass-bg:      rgba(255, 255, 255, 0.94);
  --glass-border:  rgba(210, 220, 234, 0.80);
  --shadow-sm:     0 1px 6px rgba(15, 30, 60, 0.07);
  --shadow-md:     0 4px 18px rgba(15, 30, 60, 0.10);
  --shadow-lg:     0 8px 32px rgba(15, 30, 60, 0.13);
  --glow-primary:  0 0 0 3px rgba(15, 94, 168, 0.12);
  --glow-tier1:    0 0 0 3px rgba(183, 28, 28, 0.09);
  --transition:    0.18s ease;

  /* ── Region colours — distinct per anatomical area ── */
  --col-lumbar:      #0F5EA8; --col-lumbar-bg:      #EAF3FF;
  --col-cervical:    #6B21A8; --col-cervical-bg:    #F4EDFF;
  --col-shoulder:    #0E7490; --col-shoulder-bg:    #E0F7FA;
  --col-hip:         #B45309; --col-hip-bg:         #FEF3C7;
  --col-knee:        #166534; --col-knee-bg:        #DCFCE7;
  --col-lower-limb:  #9A3412; --col-lower-limb-bg:  #FEF0E7;
  --col-upper-limb:  #9D174D; --col-upper-limb-bg:  #FCE7F3;
  --col-multi:       #374151; --col-multi-bg:       #F3F4F6;
}

/* ── RESET ──────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  /* Dyslexia-friendly: clear sans-serif stack, generous line-height, slight tracking */
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0.012em;
  color: var(--text);
  /* Subtle directional gradient — fixed on desktop, scroll on mobile (iOS safe) */
  background: linear-gradient(160deg, #EDF1F7 0%, #F7F9FC 50%, #EEF3F8 100%);
  min-height: 100vh;
  /* All text left-aligned by default */
  text-align: left;
}
/* Fixed attachment only on platforms that render it correctly */
@supports not (-webkit-touch-callout: none) {
  body { background-attachment: fixed; }
}
a { color: var(--primary); }

/* ── DISCLAIMER BAR — hidden (sole user, personal revision tool) ─────────────── */
#disclaimer-bar { display: none; }

/* ── TOP NAVIGATION BAR ─────────────────────────────────────────────────────── */
#top-nav {
  position: fixed;
  top: 0;
  left: 0; right: 0;
  z-index: 900;
  height: var(--nav-height, 48px);
  background: var(--glass-bg);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
}
.top-nav-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 16px;
}
.nav-brand {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.01em;
  margin-right: 12px;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-brand:hover { color: var(--primary-dark); }
.nav-links-group {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.nav-link:hover { background: var(--primary-bg); color: var(--primary); }
.nav-link.active {
  background: var(--primary-bg);
  color: var(--primary);
  font-weight: 700;
  box-shadow: inset 0 -2px 0 var(--primary);
}
.nav-link-icon { font-size: 15px; line-height: 1; }

/* ── BACK TO TOP ─────────────────────────────────────────────────────────────── */
#back-to-top {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 800;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, box-shadow var(--transition);
}
#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { background: var(--primary-dark); box-shadow: var(--shadow-lg); transform: translateY(-2px); }

/* ── APP SHELL ──────────────────────────────────────────────────────────────── */
#app {
  padding-top: var(--nav-height, 48px);
  min-height: 100vh;
  transition: margin-right 0.25s ease;
}
#app.panel-open { margin-right: 320px; }

/* ── PAGE CONTAINERS ────────────────────────────────────────────────────────── */
.page      { max-width: 820px;  margin: 0 auto; padding: 20px 18px 56px; }
.page-wide { max-width: 1040px; margin: 0 auto; padding: 20px 18px 56px; }
.home-page { max-width: 680px;  margin: 0 auto; padding: 20px 16px 72px; }
.conditions-page { max-width: 960px; margin: 0 auto; padding: 20px 16px 72px; }

/* ── TYPOGRAPHY ─────────────────────────────────────────────────────────────── */
.app-title    { font-size: 26px; font-weight: 700; color: var(--text);    margin-bottom: 6px; }
.app-subtitle { font-size: 15px; color: var(--text-secondary); margin-bottom: 0; }

/* Unified section / zone heading */
.section-heading,
.zone-heading {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1.5px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
h2 { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 8px; line-height: 1.35; }
h3 { font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 4px; line-height: 1.4; }

/* ── BREADCRUMB ─────────────────────────────────────────────────────────────── */
.breadcrumb { font-size: 14px; font-weight: 500; color: var(--text-secondary); margin-bottom: 16px; }
.breadcrumb a { color: var(--primary); text-decoration: none; font-weight: 600; }
.breadcrumb a:hover { text-decoration: underline; }

/* ── BACK LINK ──────────────────────────────────────────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  color: var(--primary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  min-height: 36px;
}
.back-link:hover { text-decoration: underline; }

/* ── HOME ZONES ─────────────────────────────────────────────────────────────── */
.home-zone { margin-bottom: var(--section-gap, 32px); }

/* ── HOME ACTION GRID ────────────────────────────────────────────────────────── */
.home-action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 28px;
}
.home-action-tile {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 16px 16px;
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  background: var(--surface);
  border: 1.5px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  min-height: 110px;
  position: relative;
  overflow: hidden;
}
.home-action-tile:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.home-action-tile--primary {
  grid-column: span 2;
  background: linear-gradient(135deg, #EAF3FF 0%, #D6E8FF 100%);
  border-color: rgba(15, 94, 168, 0.30);
  min-height: 90px;
}
.home-action-tile--primary:hover { border-color: rgba(15,94,168,0.5); }
.home-action-tile--reasoning {
  background: linear-gradient(135deg, #F4EDFF 0%, #EDE0FF 100%);
  border-color: rgba(107, 33, 168, 0.22);
}
.home-action-tile--conditions {
  background: linear-gradient(135deg, #E0F7FA 0%, #CCF0F7 100%);
  border-color: rgba(14, 116, 144, 0.22);
}
.home-action-tile--meds {
  background: linear-gradient(135deg, #DCFCE7 0%, #C8F5D6 100%);
  border-color: rgba(22, 101, 52, 0.22);
}
.home-action-tile-icon {
  font-size: 26px; line-height: 1; display: block;
}
.home-action-tile-body { flex: 1; }
.home-action-tile-title {
  font-size: 15px; font-weight: 700; color: var(--text);
  margin-bottom: 3px; line-height: 1.25;
}
.home-action-tile--primary .home-action-tile-title { font-size: 17px; color: var(--primary); }
.home-action-tile-desc {
  font-size: 12px; color: var(--text-muted); line-height: 1.45;
}
.home-action-tile-arrow {
  font-size: 14px; color: var(--text-muted); align-self: flex-end;
}

/* ── HOME REGION CHIP GRID ───────────────────────────────────────────────────── */
.home-region-section { margin-bottom: 24px; }
.home-region-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 10px;
}
.home-region-chips {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.home-region-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 13px;
  border-radius: 20px;
  font-size: 13px; font-weight: 600;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
  line-height: 1;
}
.home-region-chip:hover { filter: brightness(0.94); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.home-region-chip--lumbar     { background: var(--col-lumbar-bg);     color: var(--col-lumbar);     border-color: color-mix(in srgb, var(--col-lumbar) 25%, transparent); }
.home-region-chip--cervical   { background: var(--col-cervical-bg);   color: var(--col-cervical);   border-color: color-mix(in srgb, var(--col-cervical) 25%, transparent); }
.home-region-chip--shoulder   { background: var(--col-shoulder-bg);   color: var(--col-shoulder);   border-color: color-mix(in srgb, var(--col-shoulder) 25%, transparent); }
.home-region-chip--hip        { background: var(--col-hip-bg);        color: var(--col-hip);        border-color: color-mix(in srgb, var(--col-hip) 25%, transparent); }
.home-region-chip--knee       { background: var(--col-knee-bg);       color: var(--col-knee);       border-color: color-mix(in srgb, var(--col-knee) 25%, transparent); }
.home-region-chip--lower-limb { background: var(--col-lower-limb-bg); color: var(--col-lower-limb); border-color: color-mix(in srgb, var(--col-lower-limb) 25%, transparent); }
.home-region-chip--upper-limb { background: var(--col-upper-limb-bg); color: var(--col-upper-limb); border-color: color-mix(in srgb, var(--col-upper-limb) 25%, transparent); }
.home-region-chip--multi      { background: var(--col-multi-bg);      color: var(--col-multi);      border-color: color-mix(in srgb, var(--col-multi) 25%, transparent); }

/* ── START HERE CARD (legacy — kept for back-compat if referenced) ────────────── */
.start-here-card {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: var(--primary-bg); border: 1.5px solid rgba(15,94,168,0.28);
  border-radius: var(--radius-lg); padding: 20px 24px;
  text-decoration: none; color: inherit;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.start-here-card:hover { box-shadow: var(--shadow-md), var(--glow-primary); transform: translateY(-2px); }
.start-here-body     { flex: 1; min-width: 0; }
.start-here-title    { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.start-here-subtitle { font-size: 13px; color: #1F4E79; line-height: 1.6; margin-bottom: 14px; }
.start-here-btn {
  display: inline-block; background: var(--primary); color: #fff;
  padding: 9px 20px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 600;
}
.start-here-count {
  flex-shrink: 0; font-size: 12px; font-weight: 600; color: var(--primary);
  background: var(--surface); border: 1px solid #b3d0f0; border-radius: 20px; padding: 4px 12px;
}

/* ── CARDS ──────────────────────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-bottom: 8px;
}
.card {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 14px 16px;
  text-decoration: none;
  color: inherit;
  display: block;
  background: var(--glass-bg);
  backdrop-filter: blur(8px) saturate(1.1);
  -webkit-backdrop-filter: blur(8px) saturate(1.1);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  position: relative;
  will-change: transform, box-shadow;
}
.card:hover {
  box-shadow: var(--shadow-md), var(--glow-primary);
  border-color: #b3c8e8;
  transform: translateY(-2px);
}
.card-title  { font-weight: 700; font-size: 15px; color: var(--text); margin-bottom: 5px; }
.card-desc   { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.card-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }

/* Compact card variant — used inside region groups */
.card-compact { padding: 10px 13px; }
.card-compact .card-title  { font-size: 13px; font-weight: 600; margin-bottom: 2px; }
.card-compact .card-desc   { font-size: 11px; color: var(--text-muted); }
.card-compact .card-badges { margin-top: 6px; }

/* Condition region groups */
#condition-groups { display: flex; flex-direction: column; gap: 0; }

/* Use top-border via sibling selector so filtered (hidden) groups don't leave orphaned dividers */
.cond-group {
  padding: 16px 0 12px;
}
.cond-group + .cond-group {
  border-top: 1px solid #E5E9F0;
  padding-top: 16px;
}
.cond-group--first-visible {
  border-top: none !important;
  padding-top: 16px;
}
.cond-group:first-child { padding-top: 4px; }

.cond-group-header {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 12px;
  padding: 7px 12px;
  border-radius: 8px;
  border-left: 4px solid var(--primary);
  background: var(--primary-bg);
}
.cond-group-name {
  font-size: 15px; font-weight: 700;
  color: var(--primary); letter-spacing: -0.01em;
}
.cond-group-count {
  font-size: 11px; font-weight: 600; line-height: 1;
  background: var(--surface); color: var(--text-muted);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 2px 7px; margin-left: auto;
}

/* Per-region colour theming */
.cond-group[data-region="lumbar"]     .cond-group-header { border-color: var(--col-lumbar);     background: var(--col-lumbar-bg); }
.cond-group[data-region="lumbar"]     .cond-group-name   { color: var(--col-lumbar); }
.cond-group[data-region="cervical"]   .cond-group-header { border-color: var(--col-cervical);   background: var(--col-cervical-bg); }
.cond-group[data-region="cervical"]   .cond-group-name   { color: var(--col-cervical); }
.cond-group[data-region="shoulder"]   .cond-group-header { border-color: var(--col-shoulder);   background: var(--col-shoulder-bg); }
.cond-group[data-region="shoulder"]   .cond-group-name   { color: var(--col-shoulder); }
.cond-group[data-region="hip"]        .cond-group-header { border-color: var(--col-hip);        background: var(--col-hip-bg); }
.cond-group[data-region="hip"]        .cond-group-name   { color: var(--col-hip); }
.cond-group[data-region="knee"]       .cond-group-header { border-color: var(--col-knee);       background: var(--col-knee-bg); }
.cond-group[data-region="knee"]       .cond-group-name   { color: var(--col-knee); }
.cond-group[data-region="lower-limb"] .cond-group-header { border-color: var(--col-lower-limb); background: var(--col-lower-limb-bg); }
.cond-group[data-region="lower-limb"] .cond-group-name   { color: var(--col-lower-limb); }
.cond-group[data-region="upper-limb"] .cond-group-header { border-color: var(--col-upper-limb); background: var(--col-upper-limb-bg); }
.cond-group[data-region="upper-limb"] .cond-group-name   { color: var(--col-upper-limb); }
.cond-group[data-region="multi-region"] .cond-group-header { border-color: var(--col-multi);   background: var(--col-multi-bg); }
.cond-group[data-region="multi-region"] .cond-group-name   { color: var(--col-multi); }
.cond-group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 8px;
}

/* Filter summary */
.cond-filter-summary {
  font-size: 13px; color: var(--text-muted);
  margin-bottom: 12px; padding: 6px 12px;
  background: var(--primary-bg); border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
}

/* Draft card — fully opaque amber tint so it reads distinctly from glass cards */
.card-draft { background: rgba(255, 251, 240, 0.97); border-color: var(--draft-border); }
.card-draft:hover { border-color: #c9922a; box-shadow: var(--shadow-md), 0 0 0 3px rgba(217,119,6,0.10); transform: translateY(-2px); }
.card-draft-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--draft-color);
  margin-bottom: 10px;
}

/* ── BADGES ─────────────────────────────────────────────────────────────────── */
/* Legacy .badge wrapper — kept for compatibility */
.badge {
  font-size: 11px; font-weight: 600; letter-spacing: 0.03em;
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  text-transform: uppercase;
}
/* Unified small inline badges used everywhere on home cards */
.badge-home-region,
.badge-home-tier1 {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: capitalize;
}
.badge-home-region { background: var(--primary-bg); color: var(--primary); border: 1px solid #b3d0f0; }
.badge-home-tier1  { background: var(--tier1-bg);   color: var(--tier1-color); border: 1px solid #f5c6c6; }

/* Named badge variants */
.badge-draft      { background: var(--draft-bg);   color: var(--draft-color);  border: 1px solid var(--draft-border); }
.badge-screening  { background: #fce4ec; color: #880e4f; border: 1px solid #c2185b; }
.badge-region     { background: var(--primary-bg); color: var(--primary); border: 1px solid #b3d0f0; }
.badge-checklist  { background: #f3e5f5; color: #6a1b9a; border: 1px solid #7b1fa2; }
.badge-med        { background: #e8f5e9; color: #2e7d32; border: 1px solid #2e7d32; }
.badge-pres       { background: var(--primary-bg); color: var(--primary); border: 1px solid var(--primary); }
.badge-tier1      { background: var(--tier1-bg); color: var(--tier1-color); border: 1px solid #f5c6c6; }

/* ── DRAFT / UNREVIEWED WARNING ─────────────────────────────────────────────── */
.unreviewed-warning {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--draft-bg);
  border: 1px solid var(--draft-border);
  border-left: 4px solid var(--draft-color);
  color: var(--draft-color);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* ── PAGE HEADER (tree / checklist) ─────────────────────────────────────────── */
.page-header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.page-header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.page-header h2 { margin-bottom: 4px; }
.page-header .source-cite { margin-top: 2px; }

.source-cite { font-size: 12px; color: var(--text-muted); font-style: italic; line-height: 1.6; margin-top: 6px; } /* italic kept: citation convention */

/* ── PATHWAY SWITCHER ───────────────────────────────────────────────────────── */
.pathway-switcher {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  margin-bottom: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.switcher-link {
  font-size: 13px;
  color: var(--primary);
  text-decoration: none;
  max-width: 42%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 36px;
  display: flex;
  align-items: center;
  font-weight: 600;
}
.switcher-link:hover { text-decoration: underline; }
.switcher-disabled { max-width: 42%; }
.switcher-pos { font-size: 12px; color: var(--text-muted); flex-shrink: 0; }

/* ── LEGEND ─────────────────────────────────────────────────────────────────── */
.legend {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin: 12px 0;
  font-size: 12px; color: var(--text-secondary);
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.legend-item { display: flex; align-items: center; gap: 5px; }
.legend-swatch {
  width: 13px; height: 13px; border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.18); flex-shrink: 0;
}

/* ── VIEW TOGGLE ────────────────────────────────────────────────────────────── */
.view-toggle {
  display: inline-block;
  margin: 12px 0 8px;
  padding: 7px 18px;
  background: var(--glass-bg);
  color: var(--primary);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.view-toggle:hover { background: var(--primary-bg); box-shadow: var(--shadow-md), var(--glow-primary); transform: translateY(-1px); }

/* ── DIAGRAM CONTAINER ──────────────────────────────────────────────────────── */
.diagram-container {
  overflow-x: auto;
  margin: 12px 0;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.diagram-container svg { max-width: 100%; display: block; margin: 0 auto; }

.diagram-loading {
  padding: 32px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.diagram-fallback { margin-top: 12px; font-size: 13px; color: var(--text-secondary); }
.diagram-fallback summary {
  cursor: pointer;
  color: var(--primary);
  padding: 4px 0;
}
.diagram-fallback ol { margin: 8px 0 0 20px; line-height: 1.8; }

/* ── CLICK HINT ─────────────────────────────────────────────────────────────── */
.click-hint { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* ── NOTES VIEW ─────────────────────────────────────────────────────────────── */
.notes-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 12px 0 32px;
}
.note-card {
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-left-color: var(--border);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px;
  background: var(--surface);
}
.note-card-decision { border-left-color: var(--primary); }
.note-card-action   { border-left-color: #4a148c; }
.note-card-caution  { border-left-color: #f57f17; background: #fffdf5; }
.note-card-red_flag { border-left-color: var(--tier1-color); background: #fff8f8; }
.note-card-escalate { border-left-color: #880e4f; background: #fff8fb; }
.note-card-start,
.note-card-end      { border-left-color: #2e7d32; }

.note-label  { font-weight: 700; font-size: 14px; margin: 8px 0 8px; line-height: 1.4; color: var(--text); }
.note-detail { font-size: 13px; line-height: 1.75; color: var(--text-secondary); margin: 0; }
.note-redflag-warn { margin-top: 8px; font-size: 13px; font-weight: 600; color: var(--tier1-color); }

.note-step {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  color: var(--text-muted);
  font-size: 13px;
}
.note-step-label { font-weight: 500; color: var(--text-secondary); }

/* ── DETAIL PANEL ───────────────────────────────────────────────────────────── */
#detail-panel {
  position: fixed;
  top: var(--nav-height, 48px);
  right: -340px;
  width: 320px;
  height: calc(100vh - var(--nav-height, 48px));
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px) saturate(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.1);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-left: 1px solid rgba(220, 228, 240, 0.8);
  padding: 52px 20px 20px;
  overflow-y: auto;
  transition: right var(--transition);
  z-index: 500;
  box-shadow: -6px 0 28px rgba(15, 30, 60, 0.11);
}
#detail-panel.open { right: 0; }

#detail-close {
  position: absolute;
  top: 10px; right: 10px;
  background: none; border: 1px solid var(--border);
  font-size: 16px; cursor: pointer; color: var(--text-muted);
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
  transition: background 0.12s;
}
#detail-close:hover { background: var(--bg); }

#detail-panel h3 { font-size: 15px; font-weight: 700; margin: 10px 0 10px; line-height: 1.4; color: var(--text); }
.detail-text { font-size: 14px; line-height: 1.75; color: var(--text-secondary); }

/* ── NODE TYPE PILL ─────────────────────────────────────────────────────────── */
.node-type-pill {
  display: inline-block; padding: 3px 10px; border-radius: 12px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.04em;
  text-transform: uppercase; margin-bottom: 8px;
}
.pill-start,
.pill-end      { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }
.pill-decision { background: var(--primary-bg); color: var(--primary); border: 1px solid #90caf9; }
.pill-action   { background: #f3e5f5; color: #4a148c; border: 1px solid #ce93d8; }
.pill-caution  { background: #fff8e1; color: #e65100; border: 1px solid #ffe082; }
.pill-red_flag { background: var(--tier1-bg); color: var(--tier1-color); border: 1px solid #f5c6c6; }
.pill-escalate { background: #fce4ec; color: #880e4f; border: 1px solid #f48fb1; }

/* ── TIER BADGES ────────────────────────────────────────────────────────────── */
.tier-badge {
  display: inline-block; padding: 6px 14px; border-radius: 6px;
  font-weight: 700; font-size: 13px; margin-top: 12px;
  line-height: 1.4;
}
.tier-1 { background: #b71c1c; color: #fff; }
.tier-2 { background: #e65100; color: #fff; }
.tier-3 { background: var(--primary); color: #fff; }

/* ── CHECKLIST ──────────────────────────────────────────────────────────────── */
.checklist-instruction {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 24px 0 10px;
}
.checklist-form { margin: 0 0 8px; }
.checklist-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 13px 16px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.checklist-item:hover  { border-color: #b3c8e8; box-shadow: var(--shadow-md); }
.checklist-item.checked {
  background: rgba(255, 251, 240, 0.97);
  border-color: var(--draft-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.checklist-item input[type="checkbox"] {
  width: 18px; height: 18px; margin-top: 3px;
  flex-shrink: 0; cursor: pointer; accent-color: var(--primary);
}
.checklist-item label { cursor: pointer; line-height: 1.55; font-size: 14px; color: var(--text); }
.checklist-item.checked label { font-weight: 600; color: #4a3000; }

/* ── ESCALATION BLOCK ───────────────────────────────────────────────────────── */
#escalation-block {
  display: none;
  background: var(--tier1-bg);
  border: 1.5px solid var(--tier1-color);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-top: 20px;
}
#escalation-block.visible { display: block; }
#escalation-block .escalation-title {
  font-weight: 700; font-size: 15px; margin: 10px 0 6px; color: var(--tier1-color);
}
#escalation-block .escalation-instruction { font-size: 14px; line-height: 1.6; color: var(--text); }

/* ── CONDITION SEARCH ───────────────────────────────────────────────────────── */
.condition-search-wrap { margin-bottom: 14px; }
.condition-search-input {
  width: 100%;
  max-width: 400px;
  padding: 9px 14px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  outline: none;
  color: var(--text);
}
.condition-search-input:focus { border-color: var(--primary); box-shadow: var(--glow-primary); }

/* ── CONDITION LINKS (tree / checklist pages) ───────────────────────────────── */
.condition-links {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 8px; margin: 12px 0 16px;
}
.condition-links-label { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.condition-link {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-bg);
  color: var(--primary);
  border: 1px solid #b3d0f0;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s;
}
.condition-link:hover { background: #c5d8fb; }

/* ── CONDITION DETAIL PAGE ──────────────────────────────────────────────────── */
.condition-backlinks {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 8px; margin-bottom: 20px;
}
.condition-backlinks-label { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.condition-backlink {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-bg);
  color: var(--primary);
  border: 1px solid #b3d0f0;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s;
}
.condition-backlink:hover { background: #c5d8fb; }

.cond-section {
  margin: 14px 0;
  padding: 14px 18px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-left-color: var(--border);
}
.cond-section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.cond-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 6px;
}
.cond-list li {
  font-size: 14px; line-height: 1.55;
  padding-left: 16px; position: relative;
  color: var(--text-secondary);
}
.cond-list li::before { content: '–'; position: absolute; left: 0; color: var(--border); }

/* Section accent colours */
.cond-redflags { border-left-color: var(--tier1-color); background: #fff8f8; }
.cond-redflags .cond-section-title { color: var(--tier1-color); }
.cond-redflags li { color: #7f0000; }

.cond-neuro { border-left-color: var(--primary); }
.cond-neuro .cond-section-title { color: var(--primary); }

.cond-diffs { border-left-color: #4a148c; }
.cond-diffs .cond-section-title { color: #4a148c; }

.cond-safety { border-left-color: #e65100; }
.cond-safety .cond-section-title { color: #e65100; }

.cond-sources { border-left-color: var(--border); }
.cond-sources .cond-section-title { color: var(--text-muted); }
.cond-sources li { font-size: 13px; }

/* ── ABOUT PAGE ─────────────────────────────────────────────────────────────── */
.about-section {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px 20px;
  margin-bottom: 14px;
}
.about-section h3 { font-size: 15px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.about-section p,
.about-section li { font-size: 14px; line-height: 1.8; color: var(--text-secondary); }
.about-section ul { margin-left: 18px; margin-top: 6px; }

/* ── ERROR STATE ────────────────────────────────────────────────────────────── */
.error-msg {
  background: var(--tier1-bg);
  border: 1.5px solid var(--tier1-color);
  color: #7f0000;
  padding: 18px;
  border-radius: var(--radius);
  margin-top: 32px;
}

/* ── ACCESSIBILITY ──────────────────────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; box-shadow: var(--glow-primary); }
.diagram-container svg .clickable:focus { outline: 3px solid var(--primary); outline-offset: 3px; }
.diagram-container svg .clickable[tabindex] { cursor: pointer; }

/* ── MEDICATIONS TAB ────────────────────────────────────────────────────────── */
.med-subtitle { font-size: 13px; color: var(--text-muted); margin: 2px 0 16px; }

.med-layout {
  display: flex;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  height: calc(100vh - var(--nav-height, 48px) - 130px);
  min-height: 400px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-md);
}

.med-sidebar {
  width: 220px; min-width: 180px; flex-shrink: 0;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: var(--bg);
  display: flex; flex-direction: column;
}

.med-detail {
  flex: 1; overflow-y: auto;
  padding: 18px 22px 28px;
  background: var(--surface);
}

.med-search-wrap {
  padding: 10px 10px 8px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.med-search-input {
  width: 100%; padding: 7px 10px; font-size: 13px;
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface); outline: none; color: var(--text);
}
.med-search-input:focus { border-color: var(--primary); box-shadow: var(--glow-primary); }

.med-group-header {
  font-size: 10px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted);
  padding: 10px 14px 4px; flex-shrink: 0;
}
.med-cat-item {
  display: block; width: 100%; text-align: left;
  padding: 9px 14px; font-size: 13px; font-weight: 500;
  color: var(--text-secondary); background: none; border: none;
  border-left: 3px solid transparent; cursor: pointer;
  transition: background 0.12s, border-color 0.12s; line-height: 1.3;
}
.med-cat-item:hover { background: var(--primary-bg); }
.med-cat-item.active {
  background: #ddeeff;
  border-left-color: var(--primary);
  border-left-width: 4px;
  color: var(--primary); font-weight: 700;
}
.med-cat-item[data-group="caution"].active {
  border-left-color: #e65100; color: #e65100; background: #fff3e0;
}

.med-card { max-width: 680px; }
.med-card-header {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 12px; flex-wrap: wrap;
}
.med-card-title { font-size: 18px; font-weight: 700; color: var(--text); margin: 0; }

.med-badge {
  display: inline-block; padding: 3px 9px; border-radius: 12px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
}
.med-badge-treatment { background: #e8f5e9; color: #2e7d32; border: 1px solid #2e7d32; }
.med-badge-caution   { background: var(--draft-bg); color: var(--draft-color); border: 1px solid var(--draft-border); }

.med-examples-wrap {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 6px; margin-bottom: 14px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.med-field-label {
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.04em; flex-shrink: 0;
}
.med-example {
  display: inline-block; padding: 3px 9px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 4px; font-size: 12px; color: var(--text-secondary);
}

.med-section {
  margin: 10px 0; padding: 12px 16px;
  border-radius: 8px; background: var(--bg);
  border: 1px solid var(--border); border-left-width: 3px;
}
.med-section-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 8px;
}
.med-text { font-size: 13px; line-height: 1.65; color: var(--text-secondary); margin: 0; }
.med-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 5px; }
.med-list li { font-size: 13px; line-height: 1.55; color: var(--text-secondary); padding-left: 14px; position: relative; }
.med-list li::before { content: '–'; position: absolute; left: 0; color: var(--border); }

.med-relevance  { border-left-color: #2e7d32; background: #f1f8f1; }
.med-relevance .med-section-title { color: #2e7d32; }
.med-adverse    { border-left-color: #7b1fa2; }
.med-adverse .med-section-title { color: #6a1b9a; }
.med-redflags   { border-left-color: var(--tier1-color); background: #fff8f8; }
.med-redflags .med-section-title { color: var(--tier1-color); }
.med-redflags .med-list li { color: #7f0000; }
.med-assess     { border-left-color: #e65100; }
.med-assess .med-section-title { color: #e65100; }
.med-questions  { border-left-color: var(--primary); background: var(--primary-bg); }
.med-questions .med-section-title { color: var(--primary); }
.med-questions .med-list li { color: #1a237e; }
.med-questions .med-list li::before { content: '?'; color: var(--primary); }

.med-no-results { padding: 12px 14px; font-size: 13px; color: var(--text-muted); }

/* ── PRESENTATIONS TAB ──────────────────────────────────────────────────────── */
.pres-page-header { margin-bottom: 16px; }
.pres-page-header .back-link { font-size: 13px; }
.page-title    { font-size: 22px; font-weight: 700; color: var(--text); margin: 4px 0 2px; }
.page-subtitle { font-size: 13px; color: var(--text-muted); margin: 0 0 10px; }

/* ── Presentations — top search bar ─────────────────────────────────────── */
.pres-page-header { display: flex; align-items: baseline; gap: 12px; margin-bottom: 10px; }
.pres-page-header .page-title { margin-bottom: 0; }
.pres-search-wrap--top {
  margin-bottom: 10px;
}
.pres-search-input--top {
  width: 100%; box-sizing: border-box;
  padding: 10px 14px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-size: 15px; color: var(--text);
  background: var(--surface); outline: none;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.pres-search-input--top:focus { border-color: var(--primary); box-shadow: var(--glow-primary); }

.pres-layout {
  display: flex;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  height: calc(100vh - var(--nav-height, 48px) - 130px);
  min-height: 400px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-md);
}

.pres-sidebar {
  width: 260px; min-width: 200px; flex-shrink: 0;
  overflow-y: auto; border-right: 1px solid var(--border);
  background: var(--bg); display: flex; flex-direction: column;
}
/* Legacy search-wrap inside sidebar — kept for old code paths, hidden now */
.pres-search-wrap {
  padding: 10px 10px 8px; border-bottom: 1px solid var(--border);
  background: var(--surface); flex-shrink: 0;
}
.pres-search-input {
  width: 100%; box-sizing: border-box;
  padding: 7px 10px; border: 1px solid var(--border);
  border-radius: 6px; font-size: 13px; color: var(--text); outline: none;
}
.pres-search-input:focus { border-color: var(--primary); box-shadow: var(--glow-primary); }
.pres-item-list { flex: 1; overflow-y: auto; padding: 6px 0; }
.pres-item {
  display: flex; flex-direction: column; gap: 2px;
  width: 100%; padding: 10px 14px;
  border: none; border-left: 3px solid transparent;
  background: none; text-align: left; cursor: pointer;
  transition: background 0.12s;
}
.pres-item:hover { background: var(--primary-bg); }
.pres-item.active { background: #ddeeff; border-left-color: var(--primary); border-left-width: 4px; }
.pres-item-label { font-size: 13px; font-weight: 600; color: var(--text); line-height: 1.3; }
.pres-item.active .pres-item-label { color: var(--primary); }
.pres-item-region { font-size: 11px; color: var(--text-muted); }
.pres-item.active .pres-item-region { color: #5c85d6; }
.pres-item-row { display: flex; align-items: center; gap: 6px; }

/* Per-region left-border accent on list items */
.pres-item--lumbar     { border-left-color: var(--col-lumbar); }
.pres-item--cervical   { border-left-color: var(--col-cervical); }
.pres-item--shoulder   { border-left-color: var(--col-shoulder); }
.pres-item--hip        { border-left-color: var(--col-hip); }
.pres-item--knee       { border-left-color: var(--col-knee); }
.pres-item--lower-limb { border-left-color: var(--col-lower-limb); }
.pres-item--upper-limb { border-left-color: var(--col-upper-limb); }
.pres-item--multi      { border-left-color: var(--col-multi); }

/* Active state respects region colour */
.pres-item--lumbar.active     { background: var(--col-lumbar-bg);     border-left-color: var(--col-lumbar);     border-left-width: 4px; }
.pres-item--cervical.active   { background: var(--col-cervical-bg);   border-left-color: var(--col-cervical);   border-left-width: 4px; }
.pres-item--shoulder.active   { background: var(--col-shoulder-bg);   border-left-color: var(--col-shoulder);   border-left-width: 4px; }
.pres-item--hip.active        { background: var(--col-hip-bg);        border-left-color: var(--col-hip);        border-left-width: 4px; }
.pres-item--knee.active       { background: var(--col-knee-bg);       border-left-color: var(--col-knee);       border-left-width: 4px; }
.pres-item--lower-limb.active { background: var(--col-lower-limb-bg); border-left-color: var(--col-lower-limb); border-left-width: 4px; }
.pres-item--upper-limb.active { background: var(--col-upper-limb-bg); border-left-color: var(--col-upper-limb); border-left-width: 4px; }
.pres-item--multi.active      { background: var(--col-multi-bg);      border-left-color: var(--col-multi);      border-left-width: 4px; }

/* Tier-1 alert dot */
.pres-item-tier1-dot {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--tier1-color); color: #fff;
  font-size: 9px; font-weight: 800; line-height: 1;
  flex-shrink: 0;
}
.pres-item-nonmsk-count {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 18px; height: 18px; padding: 0 5px;
  font-size: 10px; font-weight: 700; line-height: 1;
  background: #FEF3C7; color: #92600a;
  border: 1px solid #E8C97A; border-radius: 9px;
  flex-shrink: 0;
}
.pres-item.active .pres-item-nonmsk-count { background: #EAF3FF; color: var(--primary); border-color: #b3d0f5; }
.pres-no-results { padding: 12px 14px; font-size: 13px; color: var(--text-muted); }

/* Empty state — shown in detail panel when no presentation selected */
.pres-empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 100%; min-height: 260px; gap: 10px;
  padding: 32px 24px; text-align: center;
}
.pres-empty-icon { font-size: 40px; opacity: 0.35; }
.pres-empty-title { font-size: 16px; font-weight: 700; color: var(--text-secondary); }
.pres-empty-sub { font-size: 13px; color: var(--text-muted); max-width: 260px; line-height: 1.5; }

/* Mobile back button — hidden on desktop */
.pres-detail-back {
  display: none;
  align-items: center; gap: 6px;
  background: none; border: none; cursor: pointer;
  font-size: 14px; font-weight: 600; color: var(--primary);
  padding: 0 0 12px; margin-bottom: 4px;
}

.pres-diff-group { margin-bottom: 16px; }
.pres-diff-group:last-child { margin-bottom: 0; }
.pres-diff-group-label {
  font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  padding: 4px 0 8px; border-bottom: 2px solid var(--border); margin-bottom: 8px;
}
.pres-diff-group-msk .pres-diff-group-label { color: var(--primary); border-color: var(--primary); }
.pres-diff-group-nonmsk .pres-diff-group-label { color: #92600a; border-color: #E8C97A; }
.pres-diff-group-nonmsk {
  background: #FFFBF2;
  border: 1px solid #E8C97A;
  border-left: 4px solid #d97706;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 10px 12px;
}
.pres-diff-group-nonmsk .pres-diff-row {
  background: #fffdf7;
  border-color: #f0dfa0;
}

.pres-detail { flex: 1; overflow-y: auto; padding: 18px 22px 28px; background: var(--surface); }
.pres-detail-header {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px; flex-wrap: wrap;
}
.pres-detail-title { font-size: 18px; font-weight: 700; color: var(--text); }
.pres-region-badge {
  font-size: 11px; padding: 2px 8px; border-radius: 10px;
  background: var(--primary-bg); color: var(--primary);
  border: 1px solid #b3d0f0; font-weight: 600; white-space: nowrap;
}

.pres-section {
  border-left: 3px solid var(--border);
  padding: 12px 14px; margin-bottom: 12px;
  border-radius: 0 8px 8px 0; background: var(--bg);
}
.pres-section-title {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 8px;
}

.pres-differentials { border-left-color: var(--primary); background: var(--primary-bg); }
.pres-differentials .pres-section-title { color: var(--primary); }

.pres-diff-list { display: flex; flex-direction: column; gap: 8px; }
.pres-diff-row {
  padding: 8px 10px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.pres-diff-row:hover { box-shadow: var(--shadow-sm); }
.pres-diff-badges { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 4px; }
.pres-badge {
  font-size: 10px; font-weight: 700; padding: 2px 7px;
  border-radius: 8px; text-transform: uppercase;
  letter-spacing: 0.04em; white-space: nowrap;
}
.pres-type-msk           { background: var(--primary-bg); color: var(--primary); border: 1px solid #90caf9; }
.pres-type-neurological  { background: #f3e5f5; color: #6a1b9a;  border: 1px solid #ce93d8; }
.pres-type-vascular      { background: #fce4ec; color: #880e4f;  border: 1px solid #f48fb1; }
.pres-type-cardiac       { background: var(--tier1-bg); color: var(--tier1-color); border: 1px solid #ef9a9a; }
.pres-type-inflammatory  { background: #fff3e0; color: #e65100;  border: 1px solid #ffcc80; }
.pres-type-malignant     { background: #ede7f6; color: #4a148c;  border: 1px solid #b39ddb; }
.pres-type-visceral      { background: #e0f7fa; color: #006064;  border: 1px solid #80deea; }
.pres-type-gynaecological{ background: #fce4ec; color: #c2185b;  border: 1px solid #f48fb1; }
.pres-type-toxic         { background: #efebe9; color: #4e342e;  border: 1px solid #bcaaa4; }
.pres-urg-badge { font-size: 10px; font-weight: 700; padding: 2px 7px; border-radius: 8px; white-space: nowrap; }
.pres-urg-tier-1 { background: var(--tier1-bg); color: var(--tier1-color); border: 1px solid #ef9a9a; }
.pres-urg-tier-2 { background: #fff8e1; color: #e65100; border: 1px solid #ffe082; }
.pres-urg-tier-3 { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }

.pres-diff-top      { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; margin-bottom: 3px; }
.pres-diff-name     { font-size: 13px; font-weight: 600; color: var(--text); line-height: 1.4; }
.pres-diff-link     { color: var(--primary); text-decoration: none; }
.pres-diff-link:hover { text-decoration: underline; }
.pres-diff-rationale {
  margin: 0; font-size: 13px; color: var(--text-secondary);
  line-height: 1.55; padding-left: 2px;
}
.pres-diff-row-urgent {
  border-left: 3px solid var(--tier1-color);
  background: rgba(254, 236, 236, 0.7);
}
.pres-diff-row-urgent:hover { box-shadow: var(--shadow-sm), var(--glow-tier1); }
.pres-diff-group-nonmsk .pres-diff-row-urgent { background: #feecec; }
.pres-nonmsk-note {
  margin: 0 0 8px; font-size: 11px;
  color: #92600a; line-height: 1.4;
}
.pres-med-notes {
  margin: 0 0 8px; font-size: 12px;
  color: #2e7d32; line-height: 1.5;
}

.pres-redflags { border-left-color: var(--tier1-color); background: #fff8f8; }
.pres-redflags .pres-section-title { color: var(--tier1-color); }
.pres-list { margin: 0; padding-left: 18px; }
.pres-list li { font-size: 13px; margin-bottom: 4px; line-height: 1.45; }
.pres-redflag-list li { color: #7f0000; }

.pres-questions { border-left-color: var(--primary); background: var(--primary-bg); }
.pres-questions .pres-section-title { color: var(--primary); }
/* Key question items with rules-out badges */
.pres-kq-item {
  display: flex; flex-direction: column; gap: 4px;
  padding: 7px 0; border-bottom: 1px solid rgba(0,0,0,0.06);
  list-style: none; color: #1a237e;
}
.pres-kq-item:last-child { border-bottom: none; }

/* Tier-1 question gets a subtle red-left accent */
.pres-kq-item--tier-1 { border-left: 3px solid var(--tier1-color); padding-left: 8px; margin-left: -8px; }

.pres-kq-text { font-size: 13px; line-height: 1.45; }

.pres-kq-badge {
  display: inline-block; align-self: flex-start;
  font-size: 10px; font-weight: 700; letter-spacing: 0.03em;
  padding: 2px 7px; border-radius: 10px;
  line-height: 1.4;
}
.pres-kq-badge--tier1 {
  background: var(--tier1-bg); color: var(--tier1-color);
  border: 1px solid rgba(183,28,28,0.25);
}
.pres-kq-badge--tier2 {
  background: #FEF3C7; color: #92600a;
  border: 1px solid rgba(184,120,10,0.25);
}
.pres-kq-badge--tier3 {
  background: var(--col-multi-bg); color: var(--col-multi);
  border: 1px solid rgba(55,65,81,0.2);
}

/* Legacy plain li inside question list */
.pres-question-list li { color: #1a237e; }

/* ── BLUEPRINT ENTRY BUTTON (in detail panel) ───────────────────────────── */
.blueprint-entry-wrap { margin-top: 18px; }
.blueprint-entry-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 16px; border-radius: var(--radius);
  background: linear-gradient(135deg, #F4EDFF 0%, #EDE0FF 100%);
  border: 1.5px solid rgba(107,33,168,0.2);
  text-decoration: none; color: var(--col-cervical);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.blueprint-entry-btn:hover { box-shadow: var(--shadow-md); border-color: rgba(107,33,168,0.4); }
.blueprint-entry-icon { font-size: 20px; flex-shrink: 0; }
.blueprint-entry-label { font-size: 14px; font-weight: 700; flex: 1; }
.blueprint-entry-sub { font-size: 11px; color: var(--text-muted); }
.blueprint-entry-arrow { font-size: 20px; color: var(--col-cervical); opacity: 0.6; }

/* ── DIAGNOSTIC BLUEPRINT PAGE ──────────────────────────────────────────── */
.blueprint-page { max-width: 1440px; padding: 16px 20px 80px; }

.blueprint-nav {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 12px; flex-wrap: wrap;
}
.blueprint-nav-title {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.09em; color: var(--text-muted); margin-left: auto;
}
.blueprint-hero {
  margin-bottom: 16px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.blueprint-title { font-size: 22px; font-weight: 800; color: var(--text); line-height: 1.2; }

/* ── Rational Override Banner ── */
.bp-override-banner {
  display: flex; gap: 20px; flex-wrap: wrap;
  background: #fff8f8; border: 1.5px solid rgba(183,28,28,0.25);
  border-left: 5px solid var(--tier1-color);
  border-radius: var(--radius); padding: 14px 18px;
  margin-bottom: 18px; box-shadow: var(--shadow-sm);
}
.bp-override-left { flex: 1; min-width: 220px; }
.bp-override-heading {
  display: flex; align-items: center; gap: 8px; margin-bottom: 6px;
}
.bp-override-icon { font-size: 16px; }
.bp-override-title {
  font-size: 13px; font-weight: 800; color: var(--tier1-color); line-height: 1.3;
}
.bp-override-sub {
  font-size: 12px; color: var(--text-secondary); line-height: 1.55;
  margin-bottom: 10px;
}
.bp-override-chips { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.bp-override-chip {
  font-size: 11px; font-weight: 700; padding: 3px 9px;
  background: rgba(183,28,28,0.1); color: var(--tier1-color);
  border: 1px solid rgba(183,28,28,0.3); border-radius: 10px;
}
.bp-override-999 { margin-top: 8px; }
.bp-override-999-label {
  font-size: 10px; font-weight: 800; text-transform: uppercase;
  color: var(--tier1-color); letter-spacing: 0.05em; display: block; margin-bottom: 4px;
}
.bp-override-999-list {
  margin: 0; padding-left: 16px;
  font-size: 12px; color: #7f1111; line-height: 1.6;
}
.bp-override-right {
  flex-shrink: 0; display: flex; flex-direction: column; gap: 6px;
  border-left: 1px solid rgba(183,28,28,0.15); padding-left: 16px;
  min-width: 160px;
}
.bp-override-esc-label {
  font-size: 10px; font-weight: 800; text-transform: uppercase;
  color: var(--text-muted); letter-spacing: 0.05em;
}
.bp-override-links { display: flex; flex-direction: column; gap: 5px; }
.bp-override-link {
  font-size: 12px; font-weight: 600; color: var(--primary);
  text-decoration: none; padding: 4px 8px;
  background: var(--primary-bg); border-radius: var(--radius-sm);
  border: 1px solid rgba(15,94,168,0.15);
  transition: background var(--transition);
}
.bp-override-link:hover { background: #d0e6ff; }

/* ── 4-column grid ── */
.blueprint-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: start;
}

/* Column card */
.bp-col {
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex; flex-direction: column;
}

/* Column header — distinct accent per column */
.bp-col-header {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 13px 14px 11px;
  border-top: 4px solid transparent;   /* top accent bar */
}
.bp-col-icon { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.bp-col-header-text { display: flex; flex-direction: column; gap: 2px; }
.bp-col-title { font-size: 13px; font-weight: 800; color: var(--text); line-height: 1.2; }
.bp-col-helper { font-size: 11px; color: var(--text-muted); line-height: 1.45; }

.bp-col-header--history  { background: #F0F6FF; border-top-color: var(--col-lumbar); }
.bp-col-header--redflags { background: #FFF5F5; border-top-color: var(--tier1-color); }
.bp-col-header--diffs    { background: #F8F4FF; border-top-color: var(--col-cervical); }
.bp-col-header--biomech  { background: #F0FBF4; border-top-color: var(--col-knee); }

.bp-col-body { padding: 12px 13px 16px; display: flex; flex-direction: column; gap: 12px; }

/* ── Col 1: Key Questions ── */
.bp-q-group { display: flex; flex-direction: column; gap: 5px; }
.bp-q-group-label {
  font-size: 10px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 2px 0 5px;
  border-bottom: 1px solid var(--border);
}
.bp-q-group-label--t1 { color: var(--tier1-color); border-color: rgba(183,28,28,0.2); }
.bp-q-group-label--t2 { color: #92600a; border-color: rgba(184,120,10,0.2); }
.bp-q-group-label--t3 { color: var(--text-muted); }

.bp-q-row {
  display: flex; align-items: flex-start; gap: 7px;
  padding: 8px 10px; border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
}
.bp-q-row--tier-1 { background: var(--tier1-bg); border-color: var(--tier1-color); }
.bp-q-row--tier-2 { background: #FFFBF2; border-color: #d97706; }
.bp-q-row--tier-3 { background: var(--bg); border-color: #d1d5db; }
.bp-q-icon { font-size: 10px; flex-shrink: 0; margin-top: 3px; }
.bp-q-body { display: flex; flex-direction: column; gap: 4px; }
.bp-q-text { font-size: 12px; line-height: 1.6; color: var(--text); }
.bp-q-tag {
  font-size: 10px; font-weight: 700; color: var(--text-secondary);
  background: rgba(0,0,0,0.06); border-radius: 6px;
  padding: 1px 7px; align-self: flex-start;
}

/* ── Col 2: Red Flags ── */
.bp-flag-group { display: flex; flex-direction: column; gap: 5px; }
.bp-flag-group-label {
  font-size: 10px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.05em; padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.bp-flag-group--t1 .bp-flag-group-label { color: var(--tier1-color); border-color: rgba(183,28,28,0.2); }
.bp-flag-group--t2 .bp-flag-group-label { color: #92600a; }
.bp-flag-row {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 12px; line-height: 1.6; color: var(--text);
  padding: 6px 9px; border-radius: var(--radius-sm);
}
.bp-flag-row--t1 { background: var(--tier1-bg); }
.bp-flag-row--t2 { background: #FFFBF2; }
.bp-flag-dot {
  width: 7px; height: 7px; border-radius: 50%;
  flex-shrink: 0; margin-top: 5px;
}
.bp-flag-row--t1 .bp-flag-dot { background: var(--tier1-color); }
.bp-flag-row--t2 .bp-flag-dot { background: #d97706; }

/* ── Col 3: Differentials ── */
.bp-diff-group { display: flex; flex-direction: column; gap: 5px; }
.bp-diff-group-label {
  font-size: 10px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted); padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.bp-diff-row {
  padding: 7px 9px; border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
  display: flex; flex-direction: column; gap: 2px;
}
.bp-diff-row--t1 { border-color: var(--tier1-color); background: var(--tier1-bg); }
.bp-diff-row--t2 { border-color: #d97706; background: #FFFBF2; }
.bp-diff-row--t3 { border-color: #d1d5db; background: var(--bg); }
.bp-diff-row-top { display: flex; align-items: center; gap: 6px; }
.bp-diff-link {
  font-size: 12px; font-weight: 600; color: var(--text);
  text-decoration: none; line-height: 1.4; flex: 1;
}
a.bp-diff-link:hover { color: var(--primary); text-decoration: underline; }
.bp-diff-badge {
  font-size: 9px; font-weight: 800; padding: 1px 5px;
  border-radius: 5px; flex-shrink: 0; line-height: 1.5;
}
.bp-diff-badge--t1 { background: var(--tier1-color); color: #fff; }
.bp-diff-badge--t2 { background: #d97706; color: #fff; }

/* Rationale — collapsed by default */
.bp-diff-rationale-wrap { margin-top: 3px; }
.bp-diff-rationale-toggle {
  font-size: 10px; font-weight: 700; color: var(--text-muted);
  cursor: pointer; list-style: none; -webkit-appearance: none;
  letter-spacing: 0.03em;
}
.bp-diff-rationale-toggle::-webkit-details-marker { display: none; }
.bp-diff-rationale-wrap[open] .bp-diff-rationale-toggle { color: var(--primary); }
.bp-diff-rationale {
  font-size: 11px; color: var(--text-secondary); line-height: 1.55;
  margin: 4px 0 2px; padding-left: 1px;
}

/* ── Col 4: Biomechanical Factors ── */
.bp-bmf-row {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 7px 0; border-bottom: 1px solid var(--border);
}
.bp-bmf-row:last-child { border-bottom: none; }
.bp-bmf-num {
  width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
  background: var(--col-knee); color: #fff;
  font-size: 10px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}
.bp-bmf-text { font-size: 12px; line-height: 1.6; color: var(--text); }
.bp-empty { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

/* ── Cognitive Bias Strip ── */
.bp-bias-strip {
  margin-top: 16px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); overflow: hidden;
}
.bp-bias-summary {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; cursor: pointer; list-style: none;
  -webkit-appearance: none; user-select: none;
  background: #F8F9FB;
}
.bp-bias-summary::-webkit-details-marker { display: none; }
.bp-bias-icon { font-size: 14px; flex-shrink: 0; }
.bp-bias-title { font-size: 12px; font-weight: 700; color: var(--text-secondary); flex: 1; }
.bp-bias-count {
  font-size: 11px; color: var(--text-muted);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 1px 8px;
}
.bp-bias-body {
  padding: 10px 14px 12px; display: flex; flex-direction: column; gap: 8px;
  border-top: 1px solid var(--border);
}
.bp-bias-row {
  display: flex; align-items: flex-start; gap: 10px;
}
.bp-bias-dot {
  width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0;
  background: var(--col-cervical); margin-top: 5px;
}
.bp-bias-text { font-size: 13px; line-height: 1.6; color: var(--text); }

/* ── Blueprint responsive ── */
@media (max-width: 1100px) {
  .blueprint-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
@media (max-width: 767px) {
  .blueprint-page { padding: 10px 12px 80px; }
  .blueprint-grid { grid-template-columns: 1fr; gap: 10px; }
  .blueprint-title { font-size: 18px; }
  .bp-override-banner { flex-direction: column; gap: 12px; }
  .bp-override-right { border-left: none; padding-left: 0; border-top: 1px solid rgba(183,28,28,0.15); padding-top: 10px; }
}

/* ── KEY QUESTIONS — NEW CARD SYSTEM ────────────────────────────────────── */

/* Sticky Tier-1 strip */
.kq-tier1-strip {
  display: flex; align-items: flex-start; gap: 8px; flex-wrap: wrap;
  background: var(--tier1-bg); border-bottom: 2px solid var(--tier1-color);
  padding: 8px 14px; margin: -18px -22px 14px; /* bleed to panel edges */
  position: sticky; top: 0; z-index: 10;
}
.kq-strip-label {
  font-size: 11px; font-weight: 800; color: var(--tier1-color);
  white-space: nowrap; padding-top: 2px;
}
.kq-strip-chips { display: flex; flex-wrap: wrap; gap: 4px; }
.kq-strip-chip {
  font-size: 11px; font-weight: 600; padding: 2px 8px;
  background: rgba(183,28,28,0.12); color: var(--tier1-color);
  border: 1px solid rgba(183,28,28,0.3); border-radius: 10px;
}

/* Zone containers */
.kq-zone { margin-bottom: 12px; }

.kq-zone-header {
  display: flex; align-items: center; gap: 7px;
  margin-bottom: 8px;
}
.kq-zone-icon { font-size: 14px; flex-shrink: 0; }
.kq-zone-title {
  font-size: 12px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-secondary);
}
.kq-zone-sub {
  font-size: 11px; color: var(--text-muted);
  margin-left: auto;
}

.kq-zone--screen-first .kq-zone-title { color: var(--tier1-color); }

/* Cards list */
.kq-cards { display: flex; flex-direction: column; gap: 4px; }

/* Individual question card — uses <details> for native expand */
.kq-card {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.kq-card:hover { box-shadow: var(--shadow-sm); }
.kq-card[open] { box-shadow: var(--shadow-sm); }

.kq-card--tier-1 {
  border-color: rgba(183,28,28,0.3);
  border-left: 3px solid var(--tier1-color);
  background: #fffafa;
}
.kq-card--tier-2 {
  border-left: 3px solid #d97706;
  background: #fffef9;
}
.kq-card--tier-3 {
  border-left: 3px solid var(--col-multi);
  background: var(--surface);
}

/* Summary row — always visible */
.kq-summary {
  display: flex; align-items: flex-start; gap: 8px;
  padding: 9px 11px; cursor: pointer;
  list-style: none; -webkit-appearance: none;
  user-select: none; -webkit-user-select: none;
}
.kq-summary::-webkit-details-marker { display: none; }
.kq-summary::marker { display: none; }

.kq-icon { font-size: 12px; flex-shrink: 0; margin-top: 1px; }

.kq-text {
  flex: 1; font-size: 13px; font-weight: 500; color: var(--text);
  line-height: 1.45;
}

.kq-badge {
  flex-shrink: 0; align-self: center;
  font-size: 10px; font-weight: 700; letter-spacing: 0.03em;
  padding: 2px 7px; border-radius: 10px; line-height: 1.4;
  max-width: 130px; text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.kq-badge--tier-1 { background: var(--tier1-bg); color: var(--tier1-color); border: 1px solid rgba(183,28,28,0.25); }
.kq-badge--tier-2 { background: #FEF3C7; color: #92600a; border: 1px solid rgba(184,120,10,0.25); }
.kq-badge--tier-3 { background: var(--col-multi-bg); color: var(--col-multi); border: 1px solid rgba(55,65,81,0.2); }

.kq-chevron {
  font-size: 16px; color: var(--text-muted); flex-shrink: 0;
  transition: transform 0.18s ease; align-self: center;
  line-height: 1;
}
.kq-card[open] .kq-chevron { transform: rotate(90deg); }

/* Follow-up action block */
.kq-followup {
  padding: 9px 12px 10px 33px;
  border-top: 1px solid var(--border);
  display: flex; align-items: flex-start; gap: 6px; flex-wrap: wrap;
}
.kq-followup--tier-1 { background: var(--tier1-bg); border-color: rgba(183,28,28,0.15); }
.kq-followup--tier-2 { background: #FFFBF2; border-color: rgba(184,120,10,0.2); }
.kq-followup--tier-3 { background: #F8F9FB; }

.kq-followup-label {
  font-size: 11px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.04em; white-space: nowrap; flex-shrink: 0; padding-top: 1px;
}
.kq-followup--tier-1 .kq-followup-label { color: var(--tier1-color); }
.kq-followup--tier-2 .kq-followup-label { color: #92600a; }
.kq-followup--tier-3 .kq-followup-label { color: var(--text-secondary); }

.kq-followup-text {
  font-size: 12px; line-height: 1.5; color: var(--text);
}
.kq-followup--tier-1 .kq-followup-text { color: #7f1111; }
.kq-followup-text strong { font-weight: 700; }

.pres-meds { border-left-color: #2e7d32; background: #f1f8f1; }
.pres-meds .pres-section-title { color: #2e7d32; }
.pres-med-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.pres-med-chip {
  font-size: 12px; padding: 4px 11px; border-radius: 12px;
  font-weight: 600; white-space: nowrap; text-decoration: none;
}
.pres-med-treatment { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }
.pres-med-treatment:hover { background: #c8e6c9; }
.pres-med-caution   { background: var(--draft-bg); color: var(--draft-color); border: 1px solid var(--draft-border); }

/* ── PRESENTATION ACCORDIONS (progressive disclosure) ───────────────────────── */
.pres-accordion {
  margin-bottom: 12px;
  border-radius: 0 8px 8px 0;
  overflow: hidden;
}
.pres-accordion > summary {
  cursor: pointer;
  list-style: none;
  padding: 10px 14px;
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted);
  border-left: 3px solid var(--border);
  background: var(--bg);
  user-select: none;
  display: flex; align-items: center; justify-content: space-between;
  transition: background 0.12s;
}
.pres-accordion > summary::-webkit-details-marker { display: none; }
.pres-accordion > summary::after {
  content: '▸';
  font-size: 13px; color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.pres-accordion[open] > summary::after { transform: rotate(90deg); }
.pres-accordion > summary:hover { background: #eef1f5; }

/* Question accordion — blue theme */
.pres-accordion-questions > summary {
  border-left-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}
.pres-accordion-questions > summary:hover { background: #d5e9ff; }
.pres-accordion-questions > summary::after { color: var(--primary); }

/* Medication accordion — green theme */
.pres-accordion-meds > summary {
  border-left-color: #2e7d32;
  color: #2e7d32;
  background: #f1f8f1;
}
.pres-accordion-meds > summary:hover { background: #dff0df; }
.pres-accordion-meds > summary::after { color: #2e7d32; }

/* Body — revealed section (the .pres-section is already styled; we just remove border-radius from it when nested) */
.pres-accordion > .pres-section {
  border-radius: 0;
  margin-bottom: 0;
}

/* ── GUIDANCE CARD ───────────────────────────────────────────────────────────── */
.guidance-card {
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--primary-bg);
  border: 1px solid rgba(15, 94, 168, 0.16);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
/* Standalone variant — used on condition detail pages (full-width, not inside pres panel) */
.guidance-card--standalone {
  border-radius: var(--radius-sm);
  border-left-width: 3px;
  margin-top: 16px;
}
.guidance-card-title {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.07em; color: var(--primary); margin-bottom: 10px;
}
.guidance-card-note {
  font-size: 12px; color: var(--text-muted); margin-bottom: 8px;
}
.guidance-group { margin-bottom: 10px; }
.guidance-group:last-child { margin-bottom: 0; }
.guidance-group-label {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 5px;
}
.guidance-links { display: flex; flex-direction: column; gap: 4px; }
.guidance-link {
  display: flex; align-items: center;
  padding: 6px 9px; border-radius: 6px;
  font-size: 12px; font-weight: 500; text-decoration: none;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(15, 94, 168, 0.12);
  color: var(--primary); line-height: 1.35;
  transition: background var(--transition), box-shadow var(--transition);
}
.guidance-link:hover {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}
/* Tier-1 must-not-miss links — red tint */
.guidance-link--tier1 {
  color: var(--tier1-color);
  border-color: rgba(183, 28, 28, 0.14);
  background: rgba(254, 236, 236, 0.55);
}
.guidance-link--tier1:hover { background: rgba(254, 236, 236, 0.95); }
/* Presentation back-links */
.guidance-link--pres { color: var(--primary); }

/* ── HOMEPAGE TIER-1 PRIORITY STRIP ─────────────────────────────────────────── */
.cond-group-priority {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 6px; margin-bottom: 10px;
}
.cond-priority-label {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--tier1-color); flex-shrink: 0;
}
.cond-priority-chip {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600; padding: 2px 9px;
  background: var(--tier1-bg); color: var(--tier1-color);
  border: 1px solid rgba(183, 28, 28, 0.18); border-radius: 12px;
  text-decoration: none;
  transition: background var(--transition), box-shadow var(--transition);
}
.cond-priority-chip::before { content: '⚠\fe0e'; font-size: 10px; }
.cond-priority-chip:hover { background: #fdd9d9; box-shadow: var(--shadow-sm); }

/* ── CONDITION GROUP DESCRIPTION ────────────────────────────────────────────── */
.cond-group-desc {
  font-size: 13px; color: var(--text-muted);
  margin: 2px 0 14px; line-height: 1.55;
  padding-left: 12px;
  border-left: 2px solid var(--border);
}

/* ── CONDITION SUB-GROUPS (regional anatomy) ─────────────────────────────────── */
.cond-subgroup {
  margin-top: 18px;
  /* <details> reset */
  list-style: none;
}
.cond-subgroup[open] > .cond-subgroup-note,
.cond-subgroup[open] > .cond-group-grid,
.cond-subgroup[open] > .masq-list { display: block; }

/* <summary> as the styled header — remove default triangle */
.cond-subgroup-header {
  display: flex; align-items: center; gap: 7px;
  padding: 7px 12px;
  border-radius: 6px;
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  margin-bottom: 0;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  list-style: none; /* Firefox */
}
.cond-subgroup-header::-webkit-details-marker { display: none; } /* Chrome/Safari */
.cond-subgroup-header::marker { display: none; }

/* Chevron indicator */
.cond-subgroup-header::after {
  content: '▾';
  font-size: 11px;
  opacity: 0.5;
  margin-left: 4px;
  transition: transform 0.2s ease;
  display: inline-block;
}
.cond-subgroup[open] > .cond-subgroup-header::after {
  transform: rotate(180deg);
}

/* Spacing only when open */
.cond-subgroup[open] > .cond-subgroup-header { margin-bottom: 10px; border-radius: 6px 6px 0 0; }

.cond-subgroup-icon { font-size: 14px; }
.cond-subgroup-count {
  margin-left: auto;
  font-size: 10px; font-weight: 600;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1px 6px;
}

/* Referral sub-group — blue theme */
.cond-subgroup-referral > .cond-subgroup-header {
  color: #2c5282; background: #EBF4FF; border-color: #bee3f8;
}
.cond-subgroup-referral .cond-subgroup-count { color: #2c5282; border-color: #bee3f8; }

/* Masquerader sub-group — muted slate theme (softened from amber) */
.cond-subgroup-masquerader > .cond-subgroup-header {
  color: #5a6478; background: var(--bg); border-color: var(--border);
}
.cond-subgroup-masquerader .cond-subgroup-count { color: #5a6478; border-color: var(--border); }

.cond-subgroup-note {
  font-size: 12px; color: var(--text-muted);
  margin: 0 0 10px; line-height: 1.5;
  padding: 0 2px;
}

/* Referral condition card — subtle blue tint */
.card-referral {
  background: rgba(235, 244, 255, 0.85);
  border-color: #bee3f8;
}
.card-referral:hover { border-color: #90cdf4; box-shadow: var(--shadow-md), 0 0 0 3px rgba(44,82,130,0.08); }

/* ── MASQUERADER ITEMS (homepage) ────────────────────────────────────────────── */
.masq-list { display: flex; flex-direction: column; gap: 7px; }
.masq-item {
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
}
.masq-item-tier1 { border-left-color: var(--tier1-color); background: rgba(254, 236, 236, 0.65); }
.masq-item-tier2 { border-left-color: #e65100; background: rgba(255, 243, 224, 0.65); }
.masq-item-tier3 { border-left-color: var(--primary); }

.masq-item-body { display: flex; flex-direction: column; gap: 3px; }
.masq-item-top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 8px; flex-wrap: wrap;
}
.masq-item-label { font-size: 13px; font-weight: 600; color: var(--text); line-height: 1.35; }
.masq-item-chips { display: flex; gap: 4px; flex-wrap: wrap; flex-shrink: 0; }
.masq-item-note { font-size: 12px; color: var(--text-secondary); line-height: 1.5; margin: 0; }

/* ── PRESENTATION NON-MSK TYPE SUB-GROUPS ────────────────────────────────────── */
.pres-type-group { margin-bottom: 16px; }
.pres-type-group:last-child { margin-bottom: 0; }

.pres-type-group-header {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  margin-bottom: 8px;
}
.pres-type-group-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; padding: 2px 8px; border-radius: 4px;
  border: 1px solid transparent;
  flex-shrink: 0;
}
/* Type-specific label colors — mirror the existing pres-type badge palette */
.pres-type-group--cardiac        { background: var(--tier1-bg);   color: var(--tier1-color); border-color: #ef9a9a; }
.pres-type-group--vascular       { background: #fce4ec; color: #880e4f;  border-color: #f48fb1; }
.pres-type-group--neurological   { background: #f3e5f5; color: #6a1b9a;  border-color: #ce93d8; }
.pres-type-group--malignant      { background: #ede7f6; color: #4a148c;  border-color: #b39ddb; }
.pres-type-group--visceral       { background: #e0f7fa; color: #006064;  border-color: #80deea; }
.pres-type-group--gynaecological { background: #fce4ec; color: #c2185b;  border-color: #f48fb1; }
.pres-type-group--inflammatory   { background: #fff3e0; color: #e65100;  border-color: #ffcc80; }
.pres-type-group--toxic          { background: #efebe9; color: #4e342e;  border-color: #bcaaa4; }

.pres-type-group-note {
  font-size: 11px; color: var(--text-muted); line-height: 1.4;
  flex: 1; min-width: 0;
  font-style: italic;
}

/* ── CONDITIONS PAGE HEADER ──────────────────────────────────────────────────── */
.conditions-page-header { margin-bottom: 14px; }

/* ── HOME FOOTER LINK ────────────────────────────────────────────────────────── */
.home-footer-link { font-size: 12px; color: var(--text-muted); margin-top: 20px; }
.home-footer-link a { color: var(--text-muted); text-decoration: none; }
.home-footer-link a:hover { text-decoration: underline; color: var(--text-secondary); }

/* ── BOTTOM NAV (hidden on desktop) ─────────────────────────────────────────── */
#bottom-nav {
  display: none;
}

/* ── MOBILE ──────────────────────────────────────────────────────────────────── */
@media (max-width: 767px) {
  /* Hide desktop top-nav — bottom nav takes over */
  #top-nav { display: none; }

  /* ── Kill the top-nav offset — nav is hidden, reclaim every pixel ── */
  #app {
    padding-top: 0;
    padding-bottom: calc(58px + env(safe-area-inset-bottom, 0px));
  }

  /* Page containers: minimal top padding, generous bottom for bottom nav */
  .home-page, .conditions-page {
    padding: 10px 12px calc(74px + env(safe-area-inset-bottom, 0px));
  }
  .page, .page-wide {
    padding: 10px 12px calc(74px + env(safe-area-inset-bottom, 0px));
  }

  /* Collapse page-level header chrome */
  .conditions-page-header { margin-bottom: 8px; }
  .page-title { font-size: 17px; margin: 0 0 1px; }
  .page-subtitle { font-size: 12px; margin-bottom: 6px; }

  .pres-page-header { margin-bottom: 8px; }
  .back-link { margin-bottom: 4px; min-height: 28px; font-size: 12px; }

  .page-header { margin-bottom: 12px; padding-bottom: 10px; }
  .page-header h2 { font-size: 17px; }

  .zone-heading, .section-heading { font-size: 13px; margin-bottom: 8px; padding-bottom: 6px; }

  /* First child in any page — kill any orphaned top margin */
  .home-page > *:first-child,
  .conditions-page > *:first-child,
  .page > *:first-child,
  .page-wide > *:first-child { margin-top: 0; }

  /* Bottom nav */
  #bottom-nav {
    display: flex;
    position: fixed; bottom: 0; left: 0; right: 0;
    height: calc(54px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: var(--glass-bg);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border-top: 1px solid var(--border);
    z-index: 900;
    justify-content: space-around;
    align-items: stretch;
  }
  .bottom-nav-item {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    flex: 1; gap: 2px;
    text-decoration: none; color: var(--text-muted);
    font-size: 9.5px; font-weight: 500;
    padding: 5px 2px;
    transition: color 0.15s ease;
    -webkit-tap-highlight-color: transparent;
    border-top: 2px solid transparent;
  }
  .bottom-nav-item.active { color: var(--primary); border-top-color: var(--primary); }
  .bottom-nav-icon { font-size: 19px; line-height: 1; }
  .bottom-nav-label { line-height: 1; letter-spacing: 0.01em; }

  /* Detail panel — bottom sheet */
  #detail-panel {
    top: auto; bottom: -65vh; right: 0;
    width: 100%; height: 65vh;
    border-left: none; border-top: 1px solid var(--border);
    transition: bottom 0.25s ease;
    border-radius: 14px 14px 0 0;
  }
  #detail-panel.open { bottom: 0; }
  #app.panel-open { margin-right: 0; }

  /* Homepage tiles — single column on very small screens */
  .home-action-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .home-action-tile { padding: 14px 12px 12px; min-height: 90px; }
  .home-action-tile--primary { grid-column: span 2; min-height: 76px; }
  .home-action-tile-icon { font-size: 22px; }
  .home-action-tile-title { font-size: 13px; }
  .home-action-tile--primary .home-action-tile-title { font-size: 15px; }

  /* Region chips — wrap naturally, no scroll */
  .home-region-chips { gap: 6px; }
  .home-region-chip { font-size: 12px; padding: 6px 11px; }

  /* Grids go single-column */
  .card-grid, .cond-group-grid { grid-template-columns: 1fr; }

  /* Meds layout stacks */
  .med-layout { flex-direction: column; height: auto; }
  .med-sidebar {
    width: 100%; min-width: 0; max-height: 220px;
    border-right: none; border-bottom: 1px solid var(--border);
    -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
  }
  .med-detail { padding: 12px 12px 28px; }

  /* Presentations — full-screen drill-down on mobile */
  .pres-page-header { margin-bottom: 6px; }
  .pres-search-wrap--top { margin-bottom: 8px; position: sticky; top: 0; z-index: 20; background: var(--bg); padding-bottom: 4px; }
  .pres-search-input--top { font-size: 14px; padding: 9px 12px; }
  .pres-layout {
    flex-direction: column; height: auto;
    border: none; border-radius: 0; box-shadow: none;
    background: transparent; overflow: visible;
  }
  .pres-sidebar {
    width: 100%; min-width: 0; border-right: none;
    overflow-y: visible; background: transparent;
    max-height: none;
  }
  .pres-item-list { overflow-y: visible; }
  .pres-item { padding: 11px 14px; border-left-width: 4px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin-bottom: 2px; background: var(--surface); box-shadow: var(--shadow-sm); }

  /* Detail panel: hidden by default on mobile, shown when .pres-view-detail */
  .pres-detail { display: none; padding: 0; }
  .pres-layout.pres-view-detail .pres-sidebar { display: none; }
  .pres-layout.pres-view-detail .pres-detail {
    display: block; padding: 14px 14px 28px;
    background: var(--surface); border-radius: var(--radius);
    box-shadow: var(--shadow-md);
  }
  .pres-detail-back { display: flex; }
  .pres-empty-state { min-height: 180px; }

  /* Adjust strip bleed for mobile panel padding */
  .kq-tier1-strip { margin: -14px -14px 12px; padding: 8px 12px; }

  /* Badges wrap on small screens */
  .kq-badge { max-width: 100px; }
  .kq-summary { flex-wrap: wrap; }
  .kq-chevron { margin-left: auto; }

  /* Sticky search bar on conditions page */
  .condition-search-wrap {
    position: sticky; top: 0; z-index: 50;
    background: var(--bg); padding: 8px 0 6px;
  }
  .condition-search-input { max-width: 100%; }

  /* Collapsible region groups */
  .cond-group-header {
    cursor: pointer; user-select: none; -webkit-user-select: none;
  }
  .cond-group-header::after {
    content: '▾'; font-size: 11px; opacity: 0.5;
    margin-left: auto; transition: transform 0.2s ease; display: inline-block;
  }
  .cond-group--collapsed .cond-group-header::after { transform: rotate(-90deg); }
  .cond-group--collapsed .cond-group-grid,
  .cond-group--collapsed .cond-subgroup { display: none; }

  /* Back to top — above bottom nav */
  #back-to-top {
    bottom: calc(64px + env(safe-area-inset-bottom, 0px));
    right: 12px; width: 36px; height: 36px; font-size: 15px;
  }

  /* Walk mode — full width on mobile */
  #walk-view { max-width: 100%; }
  .walk-label { font-size: 16px; }
  .walk-choice { padding: 12px 16px; font-size: 14px; }
  .view-mode-bar { width: 100%; }
  .view-mode-btn { flex: 1; text-align: center; font-size: 12px; padding: 6px 8px; }

  /* Tree linked strip — wrap tightly */
  .tree-linked-pres { gap: 5px; }
  .tree-linked-chip { font-size: 11px; padding: 3px 8px; }
}

@media (max-width: 380px) {
  .home-action-grid { grid-template-columns: 1fr; }
  .home-action-tile--primary { grid-column: span 1; }
  .home-action-tile--scripts { grid-column: span 1; }
}

/* Scripts grid responsive */
@media (max-width: 900px) {
  .scripts-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .scripts-grid { grid-template-columns: 1fr; }
  .scripts-card-cta { opacity: 1; }  /* always visible on touch */
  .scripts-hero { padding: 14px 16px; }
}

/* ── DECISION TREE — CONNECTED PRESENTATIONS STRIP ───────────────────────── */
.tree-linked-pres {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  margin-bottom: 16px;
  padding: 10px 14px;
  background: var(--primary-bg);
  border: 1px solid rgba(15,94,168,0.18);
  border-radius: var(--radius-sm);
  font-size: 12.5px;
}
.tree-linked-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted);
  margin-right: 4px; white-space: nowrap;
}
.tree-linked-group {
  display: inline-flex; align-items: center; gap: 4px;
}
.tree-linked-chip {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 3px 10px; border-radius: 20px;
  font-size: 11.5px; font-weight: 600;
  text-decoration: none; transition: var(--transition);
  white-space: nowrap;
}
.tree-linked-chip--pres {
  background: var(--surface); border: 1.5px solid var(--border);
  color: var(--text-secondary);
}
.tree-linked-chip--pres:hover { border-color: var(--primary); color: var(--primary); }
.tree-linked-chip--blueprint {
  background: var(--primary-bg); border: 1.5px solid var(--primary);
  color: var(--primary);
}
.tree-linked-chip--blueprint:hover { background: var(--primary); color: #fff; }

/* ── DECISION TREE — VIEW MODE BAR ───────────────────────────────────────── */
.view-mode-bar {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
  padding: 4px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  width: fit-content;
}
.view-mode-btn {
  padding: 6px 14px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  white-space: nowrap;
}
.view-mode-btn:hover { background: var(--surface); color: var(--text); }
.view-mode-btn--active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ── DECISION TREE — WALK MODE ────────────────────────────────────────────── */
#walk-view {
  max-width: 680px;
  margin: 0 auto;
}

.walk-node {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 16px;
}
.walk-node--decision { border-color: #1565c0; }
.walk-node--red_flag  { border-color: #b71c1c; }
.walk-node--escalate  { border-color: #880e4f; }
.walk-node--caution   { border-color: #f57f17; }
.walk-node--action    { border-color: #4a148c; }

/* Progress strip */
.walk-progress {
  display: flex; flex-direction: column; gap: 4px;
  padding: 10px 16px 8px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.walk-step-count {
  font-weight: 700; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.walk-trail {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px;
  font-size: 11px; color: var(--text-muted);
}
.walk-trail-crumb {
  background: var(--bg); border: 1px solid var(--border);
  padding: 1px 7px; border-radius: 20px;
  max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.walk-trail-sep { opacity: 0.4; }

/* Node body */
.walk-node-body {
  padding: 20px 20px 16px;
}
.walk-label {
  font-size: 18px; font-weight: 700; color: var(--text);
  line-height: 1.4; margin: 10px 0 12px;
}
.walk-detail {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: 12px;
}
.walk-rf-warn {
  margin-top: 10px;
  padding: 10px 14px;
  background: var(--tier1-bg); color: var(--tier1-color);
  border-radius: var(--radius-sm);
  font-size: 13.5px; font-weight: 600;
}
.walk-tier { margin-top: 10px; }

/* Choice buttons */
.walk-choices {
  display: flex; flex-direction: column; gap: 8px;
  padding: 0 16px 16px;
}
.walk-choices--single { padding-top: 4px; }
.walk-choice {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border);
  background: var(--surface);
  font-size: 15px; font-weight: 600; color: var(--text);
  cursor: pointer; text-align: left;
  transition: var(--transition);
  line-height: 1.4;
}
.walk-choice:hover {
  border-color: var(--primary);
  background: var(--primary-bg);
  color: var(--primary);
  transform: translateX(4px);
}
.walk-choice--continue {
  background: var(--primary-bg);
  border-color: var(--primary);
  color: var(--primary);
  text-align: center;
}
.walk-choice--continue:hover {
  background: var(--primary); color: #fff;
  transform: none;
}

/* Deep-link strip (terminal nodes) */
.walk-deep-links {
  margin: 0 16px 16px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.walk-deep-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 8px;
}
.walk-deep-grid {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.walk-deep-link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; border-radius: 20px;
  font-size: 12px; font-weight: 600;
  text-decoration: none; transition: var(--transition);
  border: 1.5px solid var(--border);
  background: var(--surface); color: var(--text-secondary);
}
.walk-deep-link:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }
.walk-deep-link--blueprint { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }
.walk-deep-link--blueprint:hover { background: var(--primary); color: #fff; }

/* Nav bar */
.walk-nav {
  display: flex; gap: 8px; align-items: center;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.walk-complete-bar .walk-nav { border-top: none; }
.walk-back-btn, .walk-restart-btn {
  padding: 7px 14px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--surface); color: var(--text-secondary);
  font-size: 12.5px; font-weight: 600;
  cursor: pointer; transition: var(--transition);
}
.walk-back-btn:hover, .walk-restart-btn:hover {
  border-color: var(--primary); color: var(--primary); background: var(--primary-bg);
}
.walk-back-btn--disabled {
  opacity: 0.35; cursor: default; pointer-events: none;
}
.walk-restart-btn { margin-left: auto; }

/* ── DETAIL PANEL — CROSS-LINKS ───────────────────────────────────────────── */
.panel-cross-links {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.panel-cross-links-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 8px;
}
.panel-cross-links-grid {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.panel-cross-link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 11px; border-radius: 20px;
  font-size: 12px; font-weight: 600;
  text-decoration: none; transition: var(--transition);
  border: 1.5px solid var(--border);
  background: var(--surface); color: var(--text-secondary);
}
.panel-cross-link:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }
.panel-cross-link--blueprint { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }
.panel-cross-link--blueprint:hover { background: var(--primary); color: #fff; }

/* ── HOME — ILLNESS SCRIPTS TILE ─────────────────────────────────────────── */
.home-action-tile--scripts {
  grid-column: span 2;
  background: linear-gradient(135deg, #fffbeb 0%, #f0fdfa 50%, #eef2ff 100%);
  border-color: rgba(217, 119, 6, 0.25);
  min-height: 72px;
}
.home-action-tile--scripts:hover { border-color: rgba(13, 148, 136, 0.45); }
.home-action-tile--scripts .home-action-tile-title { color: #0d9488; }

/* ── ILLNESS SCRIPTS INDEX PAGE ───────────────────────────────────────────── */
.scripts-page { padding-bottom: 48px; }

.scripts-hero {
  margin-bottom: 20px;
  padding: 20px 24px;
  background: linear-gradient(135deg, #fffbeb 0%, #f0fdfa 50%, #eef2ff 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.scripts-hero-meta {
  display: flex; align-items: center; gap: 10px; margin-bottom: 8px;
}
.scripts-hero-count {
  font-size: 12px; color: var(--text-muted); font-weight: 500;
}
.scripts-hero-title {
  font-size: 22px; font-weight: 700; color: var(--text);
  margin: 0 0 6px;
}
.scripts-hero-sub {
  font-size: 13.5px; color: var(--text-secondary);
  margin: 0; line-height: 1.6;
}

/* Region jump chips */
.scripts-jump-bar {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 24px;
}
.scripts-jump-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 5px 12px;
  border-radius: 20px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px; font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
}
.scripts-jump-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}

/* Region groups */
.scripts-group { margin-bottom: 32px; }
.scripts-group-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}
.scripts-group-icon { font-size: 18px; }
.scripts-group-label { font-size: 15px; font-weight: 700; color: var(--text); }
.scripts-group-count {
  margin-left: auto;
  font-size: 12px; font-weight: 500; color: var(--text-muted);
  background: var(--bg); border: 1px solid var(--border);
  padding: 1px 8px; border-radius: 20px;
}

/* Scripts card grid */
.scripts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

/* Individual script card */
.scripts-card {
  display: flex; flex-direction: column; gap: 6px;
  padding: 14px 16px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  text-decoration: none;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.scripts-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.scripts-card-meta {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.scripts-card-region { font-size: 10px; }
.scripts-card-tier { font-size: 10px; }
.scripts-card-name {
  font-size: 14px; font-weight: 700; color: var(--text);
  line-height: 1.35;
}
.scripts-card-pillars {
  font-size: 16px; color: var(--text-muted);
  display: flex; align-items: center; gap: 4px;
}
.scripts-card-sep { font-size: 11px; opacity: 0.4; }
.scripts-card-cta {
  margin-top: auto;
  font-size: 12px; font-weight: 600; color: var(--primary);
  opacity: 0;
  transition: var(--transition);
}
.scripts-card:hover .scripts-card-cta { opacity: 1; }

/* ── ILLNESS SCRIPT ───────────────────────────────────────────────────────── */

/* Pillar accent colours */
:root {
  --is-col-who:   #d97706; --is-col-who-bg:   #fffbeb;
  --is-col-what:  #0d9488; --is-col-what-bg:  #f0fdfa;
  --is-col-how:   #4f46e5; --is-col-how-bg:   #eef2ff;
  --is-col-tests: #be185d; --is-col-tests-bg: #fdf2f8;
}

/* Page wrapper */
.is-page { padding-bottom: 48px; }

/* Breadcrumb / back nav area */
.is-nav { margin-bottom: 16px; }

/* Hero block */
.is-hero {
  margin-bottom: 20px;
  padding: 20px 24px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.is-hero-meta {
  display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
}
.is-pill {
  display: inline-flex; align-items: center;
  padding: 2px 10px; border-radius: 20px;
  background: var(--primary-bg); color: var(--primary);
  font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
}
.is-title { font-size: 22px; font-weight: 700; color: var(--text); margin: 0 0 4px; }
.is-subtitle { font-size: 13px; color: var(--text-muted); margin: 0; }

/* ── Tab strip (mobile only) ── */
.is-tabs {
  display: none;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.is-tab {
  flex: 1 1 auto;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 12px; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  white-space: nowrap;
}
.is-tab--active {
  border-color: var(--primary);
  background: var(--primary-bg);
  color: var(--primary);
}

/* ── Grid (desktop: 2×2) ── */
.is-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

/* ── Card ── */
.is-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Card header colour variants */
.is-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.is-card-header--who   { background: var(--is-col-who-bg);   border-top: 4px solid var(--is-col-who);   }
.is-card-header--what  { background: var(--is-col-what-bg);  border-top: 4px solid var(--is-col-what);  }
.is-card-header--how   { background: var(--is-col-how-bg);   border-top: 4px solid var(--is-col-how);   }
.is-card-header--tests { background: var(--is-col-tests-bg); border-top: 4px solid var(--is-col-tests); }

.is-card-num {
  width: 22px; height: 22px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.is-card--who   .is-card-num { background: var(--is-col-who);   }
.is-card--what  .is-card-num { background: var(--is-col-what);  }
.is-card--how   .is-card-num { background: var(--is-col-how);   }
.is-card--tests .is-card-num { background: var(--is-col-tests); }

.is-card-icon  { font-size: 18px; }
.is-card-label { font-size: 14px; font-weight: 700; color: var(--text); }

/* Card body */
.is-card-body {
  padding: 16px;
  flex: 1;
  overflow-y: auto;
  line-height: 1.6;
}

/* ── Markdown content elements ── */
.is-para {
  font-size: 13.5px; color: var(--text);
  margin: 0 0 10px;
  line-height: 1.65;
}
.is-list {
  margin: 0 0 10px;
  padding-left: 18px;
}
.is-list li {
  font-size: 13.5px; color: var(--text);
  margin-bottom: 5px;
  line-height: 1.6;
}
.is-subheading {
  font-size: 13px; font-weight: 700;
  color: var(--text-secondary);
  margin: 14px 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase; letter-spacing: 0.03em;
}
.is-empty {
  color: var(--text-muted); font-style: italic; font-size: 13px;
}
.is-table {
  width: 100%; border-collapse: collapse;
  font-size: 12.5px; margin-bottom: 12px;
  overflow-x: auto; display: block;
}
.is-table th {
  background: var(--bg);
  font-weight: 600; color: var(--text-secondary);
  padding: 6px 10px; text-align: left;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
.is-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
  line-height: 1.5;
}
.is-table tr:last-child td { border-bottom: none; }
.is-table tr:nth-child(even) td { background: var(--bg); }

/* ── Entry button on condition page ── */
.is-script-entry-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--primary);
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 13px; font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}
.is-script-entry-btn:hover {
  background: var(--primary);
  color: #fff;
}
.is-script-entry-icon { font-size: 16px; }
.is-script-entry-label { font-weight: 700; }
.is-script-entry-sub {
  font-size: 11px; font-weight: 400;
  opacity: 0.75;
}
.is-script-entry-arrow {
  font-size: 18px; font-weight: 300;
  margin-left: auto;
  opacity: 0.7;
}

/* ── Blueprint differential script link ── */
.bp-diff-script-link {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: 6px;
  padding: 1px 7px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 11px; font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  vertical-align: middle;
}
.bp-diff-script-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  /* Show tabs, single-card view on mobile */
  .is-tabs { display: flex; }
  .is-grid { display: block; }
  .is-card { display: none; margin-bottom: 12px; }
  .is-card--visible { display: flex; }
}

@media (min-width: 901px) {
  /* 2×2 grid on desktop — ensure tabs stay hidden */
  .is-tabs { display: none !important; }
  .is-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .is-card { display: flex !important; }
}

@media (min-width: 1400px) {
  /* 4-col layout on very wide screens */
  .is-grid { grid-template-columns: repeat(4, 1fr); }
}