/* NCDE Journey Continuity Engine v1.0 — Sprint 3.3 */
:root{--chapter-curtain:#031b14;--chapter-gold:#d8b13e;--chapter-ivory:#f5f0e3;--chapter-transition-duration:1680ms}
html.ncde-transitioning{overflow:hidden}
body.ncde-chapter-page{background:var(--chapter-curtain)}
.ncde-chapter-transition{position:fixed;inset:0;z-index:99999;pointer-events:none;opacity:0;visibility:hidden;overflow:hidden;background:#02140f;transition:opacity .28s ease,visibility 0s linear .28s}
.ncde-chapter-transition__veil{position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,rgba(12,64,47,.72),transparent 48%),linear-gradient(180deg,#05251c 0%,#021611 68%,#010b08 100%)}
.ncde-chapter-transition__grid{position:absolute;inset:-20%;opacity:0;background-image:linear-gradient(rgba(216,177,62,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(216,177,62,.055) 1px,transparent 1px);background-size:58px 58px;transform:perspective(700px) rotateX(63deg) translateY(28%);mask-image:linear-gradient(to bottom,transparent,black 24%,black 74%,transparent)}
.ncde-chapter-transition__stream{position:absolute;inset:0;overflow:hidden;opacity:0}
.ncde-chapter-transition__stream i{position:absolute;left:calc((var(--i) * 4.35%));top:-18%;width:1px;height:28%;background:linear-gradient(to bottom,transparent,rgba(236,205,104,.9),transparent);filter:drop-shadow(0 0 7px rgba(216,177,62,.8));animation:ncde-data-fall 1.05s linear infinite;animation-delay:calc(var(--i) * -47ms)}
.ncde-chapter-transition__archipelago{position:absolute;left:50%;top:48%;width:min(64vw,780px);transform:translate(-50%,-50%) scale(.88);opacity:0;filter:drop-shadow(0 0 24px rgba(216,177,62,.18))}
.ncde-chapter-transition__archipelago>img{display:block;width:100%;height:auto;opacity:.76;filter:sepia(1) saturate(.7) brightness(1.26);mask-image:linear-gradient(90deg,transparent 0,black 16%,black 84%,transparent 100%)}
.ncde-transition-beacon{position:absolute;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;opacity:0;transform:translate(-50%,-50%) scale(.35)}
.ncde-transition-beacon:before,.ncde-transition-beacon:after{content:"";position:absolute;inset:-10px;border:1px solid rgba(216,177,62,.66);border-radius:50%;opacity:0}
.ncde-transition-beacon img{position:relative;z-index:2;width:42px;height:42px;object-fit:contain;filter:drop-shadow(0 0 13px rgba(216,177,62,.5))}
.ncde-transition-beacon--bicp{left:35.4%;top:68%}.ncde-transition-beacon--kicp{left:45.5%;top:38%}.ncde-transition-beacon--picp{left:80%;top:48%}
.ncde-chapter-transition__mark{position:absolute;inset:0;display:grid;place-content:center;text-align:center;color:var(--chapter-ivory);opacity:0;transform:translateY(10px)}
.ncde-chapter-transition__mark span{font-size:10px;letter-spacing:.38em;text-transform:uppercase;color:rgba(245,240,227,.58)}
.ncde-chapter-transition__mark strong{display:block;margin:.18em 0 .08em;font:400 clamp(70px,10vw,138px)/.86 Georgia,"Times New Roman",serif;color:var(--chapter-gold);text-shadow:0 0 34px rgba(216,177,62,.18)}
.ncde-chapter-transition__mark em{font:400 clamp(19px,2.4vw,32px)/1.2 Georgia,"Times New Roman",serif;font-style:normal;letter-spacing:.025em}
html.ncde-transitioning .ncde-chapter-transition{opacity:1;visibility:visible;pointer-events:auto;transition:opacity .22s ease,visibility 0s}
html.ncde-transitioning .ncde-chapter-transition__grid{animation:ncde-grid-in 1.55s ease both}
html.ncde-transitioning .ncde-chapter-transition__stream{animation:ncde-stream-in 1.55s ease both}
html.ncde-transitioning .ncde-chapter-transition__archipelago{animation:ncde-map-in 1.55s cubic-bezier(.2,.75,.2,1) both}
html.ncde-transitioning .ncde-transition-beacon--bicp{animation:ncde-beacon-in .45s .68s ease-out both}
html.ncde-transitioning .ncde-transition-beacon--kicp{animation:ncde-beacon-in .45s .84s ease-out both}
html.ncde-transitioning .ncde-transition-beacon--picp{animation:ncde-beacon-in .45s 1s ease-out both}
html.ncde-transitioning .ncde-transition-beacon:before{animation:ncde-beacon-pulse .8s 1.02s ease-out both}
html.ncde-transitioning .ncde-transition-beacon:after{animation:ncde-beacon-pulse .8s 1.16s ease-out both}
html.ncde-transitioning .ncde-chapter-transition__mark{animation:ncde-mark-in .5s 1.08s ease both}
html.ncde-entering .ncde-chapter-transition{opacity:1;visibility:visible}
html.ncde-entering .ncde-chapter-transition__grid{opacity:.22}
html.ncde-entering .ncde-chapter-transition__mark{opacity:1;transform:none}
html.ncde-enter-ready .ncde-chapter-transition{opacity:0;visibility:hidden;transition:opacity .46s ease,visibility 0s linear .46s}
.ncde-chapter-page:not(.ncde-chapter-page--opening) main{min-height:72vh;padding-top:var(--ncde-header-height,84px)}
.ncde-chapter-nav{position:relative;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;width:min(1180px,calc(100% - 40px));margin:0 auto;padding:48px 0 64px;border-top:1px solid rgba(216,177,62,.24);color:#f5f0e3}
.ncde-chapter-nav:before{content:"";position:absolute;top:-1px;left:50%;width:72px;height:1px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,#d8b13e,transparent);box-shadow:0 0 14px rgba(216,177,62,.34)}
.ncde-chapter-nav a{color:inherit;text-decoration:none;transition:color .25s ease,transform .25s ease}.ncde-chapter-nav a:hover,.ncde-chapter-nav a:focus-visible{color:#d8b13e;outline:none}.ncde-chapter-nav__back{justify-self:start;font-size:11px;letter-spacing:.16em;text-transform:uppercase}.ncde-chapter-nav__next{justify-self:end;display:flex;align-items:center;gap:14px;font-size:11px;letter-spacing:.16em;text-transform:uppercase}.ncde-chapter-nav__next:hover{transform:translateX(4px)}.ncde-chapter-nav__identity{display:grid;gap:6px;text-align:center}.ncde-chapter-nav__identity span{font-size:9px;letter-spacing:.28em;text-transform:uppercase;color:#d8b13e}.ncde-chapter-nav__identity strong{font-family:Georgia,"Times New Roman",serif;font-size:21px;font-weight:400}.ncde-opening-down{grid-auto-flow:row;gap:7px;min-width:150px;font-size:24px}.ncde-opening-down__label{font-size:10px;letter-spacing:.2em;text-transform:uppercase}
.ncde-chapter-intro{position:fixed;inset:0;z-index:99980;display:grid;place-content:center;text-align:center;pointer-events:none;background:radial-gradient(circle at 50% 45%,rgba(14,71,52,.55),transparent 45%),#031b14;color:#f5f0e3;opacity:0;visibility:hidden}
html.ncde-show-chapter-intro .ncde-chapter-intro{visibility:visible;animation:ncde-intro-sequence 2.15s ease both}
.ncde-chapter-intro span{font-size:10px;letter-spacing:.38em;text-transform:uppercase;color:rgba(245,240,227,.58)}
.ncde-chapter-intro strong{display:block;margin:.18em 0 .08em;font:400 clamp(74px,12vw,150px)/.88 Georgia,"Times New Roman",serif;color:#d8b13e}
.ncde-chapter-intro h1{margin:0;font:400 clamp(25px,4vw,48px)/1.08 Georgia,"Times New Roman",serif}.ncde-chapter-intro p{margin:12px 0 0;font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:rgba(245,240,227,.62)}
@keyframes ncde-data-fall{to{transform:translateY(142vh)}}
@keyframes ncde-grid-in{0%{opacity:0;transform:perspective(700px) rotateX(63deg) translateY(38%)}35%,70%{opacity:.25}100%{opacity:0;transform:perspective(700px) rotateX(63deg) translateY(14%)}}
@keyframes ncde-stream-in{0%,12%{opacity:0}32%,70%{opacity:.72}100%{opacity:0}}
@keyframes ncde-map-in{0%,25%{opacity:0;transform:translate(-50%,-50%) scale(.82);filter:blur(8px)}50%,76%{opacity:.88;transform:translate(-50%,-50%) scale(1);filter:blur(0)}100%{opacity:0;transform:translate(-50%,-50%) scale(1.04)}}
@keyframes ncde-beacon-in{0%{opacity:0;transform:translate(-50%,-50%) scale(.25)}70%{opacity:1;transform:translate(-50%,-50%) scale(1.14)}100%{opacity:1;transform:translate(-50%,-50%) scale(1)}}
@keyframes ncde-beacon-pulse{0%{opacity:.8;transform:scale(.35)}100%{opacity:0;transform:scale(2.2)}}
@keyframes ncde-mark-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes ncde-intro-sequence{0%{opacity:0}12%,70%{opacity:1}100%{opacity:0}}
@media(max-width:720px){.ncde-chapter-transition__archipelago{width:92vw}.ncde-transition-beacon{width:40px;height:40px}.ncde-transition-beacon img{width:31px;height:31px}.ncde-chapter-nav{grid-template-columns:1fr 1fr;padding:38px 0 48px}.ncde-chapter-nav__identity{grid-column:1/-1;grid-row:1}.ncde-chapter-nav__back{grid-column:1}.ncde-chapter-nav__next{grid-column:2;text-align:right}.ncde-chapter-nav__next span:first-child{max-width:120px}.ncde-chapter-intro p{padding:0 30px;line-height:1.7}}
@media(prefers-reduced-motion:reduce){.ncde-chapter-transition,.ncde-chapter-transition *,.ncde-chapter-intro{animation:none!important;transition:none!important}.ncde-chapter-transition__stream,.ncde-chapter-transition__archipelago{display:none!important}}