/* PAGENAV V6: unified deep-dive header, extends the clue-trail nav to subpages. */
.pgv6-bar{position:fixed;top:0;left:0;right:0;z-index:300;display:flex;align-items:center;gap:.5rem;min-height:52px;padding:calc(.35rem + env(safe-area-inset-top,0px)) .75rem .35rem;background:rgba(8,8,14,.78);-webkit-backdrop-filter:blur(16px) saturate(1.3);backdrop-filter:blur(16px) saturate(1.3);border-bottom:1px solid rgba(255,255,255,.07)}
.pgv6-bar::after{content:"";position:absolute;left:0;bottom:-1px;height:2px;width:100%;transform:scaleX(var(--readp,0));transform-origin:left;background:linear-gradient(90deg,#e8c47d,#c084fc 55%,#38bdf8);opacity:.9;pointer-events:none}
.pgv6-back{display:inline-flex;align-items:center;gap:.4rem;min-height:44px;min-width:44px;padding:0 .7rem;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:#e2e8f0;text-decoration:none;font-family:'Space Grotesk','Newsreader',sans-serif;font-weight:600;font-size:.85rem;letter-spacing:.02em;white-space:nowrap;-webkit-tap-highlight-color:transparent}
.pgv6-back:hover{border-color:rgba(192,132,252,.5);color:#fff}
.pgv6-back .ch{font-size:1rem;line-height:1;transform:translateY(-1px)}
.pgv6-title{flex:1;min-width:0;text-align:center;font-family:'Space Grotesk','Newsreader',sans-serif;font-weight:600;font-size:.88rem;color:#f1f5f9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 .25rem}
.pgv6-home{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);-webkit-tap-highlight-color:transparent}
.pgv6-home:hover{border-color:rgba(192,132,252,.5)}
.pgv6-home img{width:24px;height:24px;display:block}
body.pgv6-pad{padding-top:calc(58px + env(safe-area-inset-top,0px)) !important}
/* Legacy chrome: retired by this system */
body.pgv6-pad .back-link,
body.pgv6-pad .subpage-progress,
body.pgv6-pad .subpage-progress-fill,
body.pgv6-pad #progressFill,
body.pgv6-pad .subpage-section-label,
body.pgv6-pad #sectionLabel{display:none !important}
/* Prev/Next: symmetric, modern, no clip-path arrows */
.subpage-nav{gap:.75rem}
.subpage-btn{flex:1 1 0;max-width:200px;justify-content:center;font-family:'Space Grotesk','Newsreader',sans-serif;font-weight:600;font-size:.9rem;letter-spacing:.01em;color:#e2e8f0;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:12px;min-height:48px;padding:.7rem 1rem;-webkit-tap-highlight-color:transparent}
.subpage-btn:hover{border-color:rgba(232,196,125,.55);color:#fff;background:rgba(232,196,125,.08)}
.subpage-btn.sp-prev::before,.subpage-btn.sp-next::after{content:"" !important;display:none !important}
.subpage-btn.sp-prev .pgv6-ch,.subpage-btn.sp-next .pgv6-ch{font-size:1.05rem;line-height:1;color:#e8c47d}
.subpage-btn.sp-at-edge{opacity:.3;cursor:not-allowed}
@media(prefers-reduced-motion:reduce){.pgv6-bar::after{transition:none}}