/* The Bible Challenge — PR5 visual restoration / compatibility layer
   Keeps reconstructed navigation while preserving the v4.1.0 visual system. */
:root{
  --pr5-bg:var(--bg);--pr5-surface:var(--surface);--pr5-surface-subtle:var(--surface2);
  --pr5-text:var(--text);--pr5-muted:var(--muted);--pr5-line:var(--line);
  --pr5-line-strong:color-mix(in srgb,var(--line) 72%,var(--text));
  --pr5-accent:var(--indigo);--pr5-accent-strong:var(--indigo2,var(--indigo));
  --pr5-accent-soft:color-mix(in srgb,var(--indigo) 12%,transparent);
  --pr5-focus:var(--cyan);--pr5-radius-sm:16px;--pr5-radius-md:22px;--pr5-radius-lg:32px;
  --pr5-shadow-1:var(--shadow-sm);--pr5-shadow-2:var(--shadow);--pr5-content:1260px;
}
.pr5-native-nav{display:none!important}
.pr5-primary-nav{position:relative;z-index:2;display:grid;gap:7px}
.pr5-nav-link,.pr5-utility-link{width:100%;min-height:46px;display:flex;align-items:center;gap:13px;padding:11px 13px;border:1px solid transparent;border-radius:15px;background:transparent;color:rgba(255,255,255,.72);font:750 .9rem/1 var(--font-ui);text-align:left;transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease}
.pr5-nav-link svg,.pr5-utility-link svg{width:21px;height:21px;flex:0 0 auto}
.pr5-nav-link:hover,.pr5-utility-link:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(3px)}
.pr5-nav-link.active{color:#fff;background:linear-gradient(110deg,color-mix(in srgb,var(--cyan) 19%,transparent),color-mix(in srgb,var(--indigo) 28%,transparent));border-color:color-mix(in srgb,var(--cyan) 24%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--cyan) 9%,transparent),0 8px 24px rgba(5,8,34,.12)}
.pr5-nav-link.active svg{color:var(--cyan);filter:drop-shadow(0 0 8px color-mix(in srgb,var(--cyan) 45%,transparent))}
.pr5-utility-nav{position:relative;z-index:2;display:grid;gap:5px;padding-top:14px;margin-top:14px;border-top:1px solid rgba(255,255,255,.1)}
.pr5-utility-link{min-height:42px;font-size:.82rem}
.pr5-native-home{position:static!important;width:auto!important;height:auto!important;padding:0!important;margin:0!important;overflow:visible!important;clip:auto!important;white-space:normal!important;border:0!important;pointer-events:auto!important}
.pr5-home{display:none!important}
.pr5-native-mobile-nav{display:none!important}.pr5-mobile-nav{display:none}
.pr5-nav-link:focus-visible,.pr5-utility-link:focus-visible,.pr5-mobile-nav button:focus-visible{outline:3px solid color-mix(in srgb,var(--cyan) 55%,transparent)!important;outline-offset:3px!important}
@media(max-width:940px){
 .pr5-mobile-nav{position:fixed;z-index:90;inset:auto 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;min-height:calc(68px + env(safe-area-inset-bottom));padding:6px 8px calc(6px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:color-mix(in srgb,var(--surface) 92%,transparent);box-shadow:0 -14px 36px rgba(13,17,45,.15);backdrop-filter:blur(18px) saturate(145%);-webkit-backdrop-filter:blur(18px) saturate(145%)}
 .pr5-mobile-nav .pr5-nav-link{min-height:54px;display:grid;place-items:center;align-content:center;gap:4px;padding:6px 4px;border-radius:14px;color:var(--muted);font-size:.66rem}
 .pr5-mobile-nav .pr5-nav-link svg{width:22px;height:22px}.pr5-mobile-nav .pr5-nav-link:hover{transform:none}
 .pr5-mobile-nav .pr5-nav-link.active{color:var(--text);background:linear-gradient(145deg,color-mix(in srgb,var(--cyan) 14%,var(--surface)),color-mix(in srgb,var(--indigo) 16%,var(--surface)));border-color:color-mix(in srgb,var(--indigo) 28%,var(--line));box-shadow:0 7px 18px color-mix(in srgb,var(--indigo) 12%,transparent)}
 .pr5-mobile-nav .pr5-nav-link.active svg{color:var(--indigo)}
 .main{padding-bottom:max(112px,calc(96px + env(safe-area-inset-bottom)))}
}
body.dark .pr5-mobile-nav{background:rgba(13,18,46,.94)}
body.contrast:not(.dark) .pr5-mobile-nav{background:#fff;border:2px solid #000;backdrop-filter:none;-webkit-backdrop-filter:none}
@media(prefers-reduced-motion:reduce){.pr5-nav-link,.pr5-utility-link{transition:none}}

/* P0D — Visual Identity & Visual-Regression Preservation
   Overlay-only repair. The v4.1.0 theme variables remain the source of truth;
   no question, scoring, progression, difficulty, or persistence semantics live here. */
:root{--p0d-visual-preservation:1}
.pr5-primary-nav,.pr5-primary-nav *,.pr5-utility-nav,.pr5-utility-nav *,.pr5-mobile-nav,.pr5-mobile-nav *,
.pr6-root,.pr6-root *{box-sizing:border-box}
.pr6-root{width:100%;min-width:0;max-width:1260px;overflow:visible}
.pr6-root :where(.pr6-intro-grid,.pr6-flow-card,.pr6-feature,.pr6-feature-copy,.pr6-feature-steps,.pr6-focus-top,.pr6-book-tools,.pr6-book-grid,.pr6-roadmap,.pr6-path-list,.pr6-signal-grid,.pr6-review-loop,.p0c-preserved-grid)>*{min-width:0}
.pr6-root :where(h2,h3,p,strong,small,span,button){overflow-wrap:break-word}
.pr6-book-tools input{max-width:100%}
.p0c-preserved-grid{grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr))!important}

/* Eliminate reconstruction-only hard-coded hero colors. Reconstructed surfaces
   now resolve through the same indigo/cyan/gold/violet palette as v4.1.0. */
.pr6-page-head{
 background:
  radial-gradient(circle at 84% 18%,color-mix(in srgb,var(--cyan) 22%,transparent),transparent 27%),
  radial-gradient(circle at 94% 85%,color-mix(in srgb,var(--gold) 18%,transparent),transparent 24%),
  linear-gradient(135deg,color-mix(in srgb,var(--indigo) 82%,#10142e),color-mix(in srgb,var(--violet) 76%,var(--indigo)))!important
}
.pr6-button.primary{background:linear-gradient(135deg,var(--gold),color-mix(in srgb,var(--gold) 62%,#fff))!important;border-color:color-mix(in srgb,var(--gold) 60%,var(--line))!important;color:color-mix(in srgb,var(--indigo) 82%,#000)!important}
.pr6-domain-rail,.pr6-book-tools{border-color:var(--line);color:var(--text)}

/* Theme inheritance is explicit so switching the established light/dark/contrast
   modes never leaves a reconstruction surface stranded in a foreign palette. */
body.dark .pr6-root{color:var(--text)}
body.dark .pr6-domain-rail,body.dark .pr6-book-tools{background:color-mix(in srgb,var(--surface) 94%,transparent)}
body.contrast:not(.dark) .pr6-root :where(.pr6-domain-rail,.pr6-flow-card,.pr6-explain,.pr6-feature,.pr6-focus-top,.pr6-book-tools,.pr6-book-grid button,.pr6-roadmap>div,.pr6-path-list>button,.pr6-signal-grid article,.pr6-review-loop>div){box-shadow:none!important;border-color:#000!important}
body.contrast:not(.dark) .pr6-page-head{background:#000!important;color:#fff!important;border:2px solid #000!important;box-shadow:none!important}
body.contrast:not(.dark) .pr6-domain-rail,body.contrast:not(.dark) .pr6-book-tools{background:#fff!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
body.contrast:not(.dark) .pr6-domain-rail button.active,body.contrast:not(.dark) .pr6-subnav button.active{background:#000!important;color:#fff!important;border-color:#000!important;box-shadow:none!important}
body.contrast:not(.dark) .pr6-button.primary{background:#000!important;color:#fff!important;border-color:#000!important;box-shadow:none!important}

/* Responsive containment: no reconstructed card, search field, preserved-mode
   grid, or page header may force horizontal scrolling over the legacy shell. */
@media(max-width:940px){
 .pr6-root{max-width:100%}
 .pr6-page-head{padding:22px 20px;border-radius:24px}
 .pr6-book-tools{top:64px;align-items:stretch;flex-wrap:wrap}
 .pr6-book-tools label{flex:1 1 240px}.pr6-book-tools input{width:100%}
}
@media(max-width:620px){
 .pr6-page-head{display:block;padding:20px 17px;border-radius:20px}
 .pr6-page-head h2{font-size:clamp(1.8rem,11vw,2.7rem)}
 .pr6-domain-rail{width:100%;grid-template-columns:repeat(2,minmax(0,1fr))}
 .pr6-domain-rail button{padding-inline:10px}
 .pr6-book-tools{position:static;display:grid}
 .pr6-book-tools>div{width:100%;flex-wrap:wrap}.pr6-book-tools>div button{flex:1 1 auto}
}
@media(max-width:420px){
 .pr5-mobile-nav{padding-inline:4px}
 .pr5-mobile-nav .pr5-nav-link{font-size:.61rem;padding-inline:2px}
 .pr6-root{gap:14px}
 .pr6-page-head{padding:18px 15px}
}
@media(prefers-reduced-motion:reduce){
 .pr6-root :where(button,.pr6-flow-card,.pr6-book-grid button,.pr6-path-list>button){transition:none!important}
 .pr6-root :where(.pr6-flow-card,.pr6-book-grid button,.pr6-path-list>button):hover{transform:none!important}
}