/* ============================================================
   LEAGUE FILM — cinematic scroll stage (shared film engine skin)
   LUXES edition. Palette drawn from the walkthrough: warm dawn
   golds, ivory, soft green, warm charcoal.
   ============================================================ */

:root{
  --film-bg:#100E0B;
  --film-ink:#F6F1E7;
  --film-ink-dim:rgba(246,241,231,.66);
  --film-ink-faint:rgba(246,241,231,.4);
  --film-gold:#D8BF8B;
  --film-line:rgba(246,241,231,.18);
  --film-nav-h:64px;
}

/* ============ NAV (film zone) ============ */
.cine-nav{
  position:fixed;top:0;left:0;right:0;z-index:120;
  height:var(--film-nav-h);
  display:flex;align-items:center;gap:28px;
  padding:0 clamp(20px,4vw,48px);
  transition:background .5s var(--ease),border-color .5s var(--ease),color .5s var(--ease);
  color:var(--film-ink);
  border-bottom:1px solid transparent;
}
.cine-nav.nav-dark{background:rgba(14,12,9,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:rgba(246,241,231,.08);color:var(--film-ink)}
.cine-nav.nav-light{background:rgba(246,241,231,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:rgba(20,18,14,.08);color:#221E18}
.cine-nav a{white-space:nowrap}
.nav-back{font-size:11px;letter-spacing:.22em;text-transform:uppercase;opacity:.62;transition:opacity .3s}
.nav-back:hover{opacity:1}
.nav-word{font-family:var(--font-display);font-size:21px;letter-spacing:.32em;margin-right:auto}
.nav-links{display:flex;gap:26px}
.nav-links a{font-size:11px;letter-spacing:.2em;text-transform:uppercase;opacity:.66;transition:opacity .3s}
.nav-links a:hover{opacity:1}
.nav-cta{
  font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;
  padding:10px 22px;border:1px solid currentColor;border-radius:999px;
  transition:background .4s var(--ease),color .4s var(--ease);
}
.cine-nav.nav-dark .nav-cta:hover{background:var(--film-ink);color:#141210}
.cine-nav.nav-light .nav-cta:hover{background:#221E18;color:var(--film-ink)}

/* ============ STAGE ============ */
#filmTrack{position:relative;height:6200px;background:var(--film-bg)}
#filmStage{
  position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;
  background:var(--film-bg);
}
#filmCanvas{
  position:absolute;inset:0;width:100%;height:100%;
  display:block;
}
/* adaptive scrim sits directly above the canvas */
#filmScrim{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,9,7,.52) 0%,rgba(10,9,7,.14) 34%,rgba(10,9,7,.1) 56%,rgba(10,9,7,.5) 100%);
  opacity:.22;transition:opacity .5s var(--ease);
}
/* fixed vignette + grain */
#filmStage::after{
  content:'';position:absolute;inset:0;z-index:3;pointer-events:none;
  background:radial-gradient(125% 95% at 50% 42%,transparent 55%,rgba(8,7,5,.45) 100%);
}
#filmGrain{
  position:absolute;inset:0;z-index:4;pointer-events:none;opacity:.3;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* ============ CHAPTERS ============ */
#filmChapters{position:absolute;inset:0;z-index:20;pointer-events:none}
.chapter{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:center;
  padding:0 clamp(28px,7vw,120px);
  opacity:0;pointer-events:none;
  transition:opacity .55s var(--ease),transform .7s var(--ease-snap);
  transform:translateY(24px);
}
.chapter.on{
  opacity:1;pointer-events:auto;
  transform:translateY(var(--drift,0px));
}
.chapter.leaving{transform:translateY(-18px)}

.ch-left  {align-items:flex-start;text-align:left;padding-right:38vw}
.ch-right {align-items:flex-end;text-align:right;padding-left:38vw}
.ch-center{align-items:center;text-align:center}

/* localized legibility wash behind the copy block */
.chapter::before{
  content:'';position:absolute;z-index:-1;
  top:50%;transform:translateY(-50%);
  width:min(620px,52vw);height:min(46vh,420px);
  background:radial-gradient(58% 58% at 50% 50%,rgba(10,9,7,.42),transparent 74%);
  pointer-events:none;
}
.ch-left::before{left:clamp(10px,4vw,72px)}
.ch-right::before{right:clamp(10px,4vw,72px)}
.ch-center::before{left:50%;transform:translate(-50%,-50%)}

.ch-eyebrow{
  font-size:11px;letter-spacing:.58em;text-transform:uppercase;
  color:var(--film-gold);margin-bottom:20px;
  text-shadow:0 2px 18px rgba(10,9,7,.65);
}
.ch-title{
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(42px,6.8vw,108px);line-height:1.04;letter-spacing:.005em;
  color:var(--film-ink);text-wrap:balance;
  text-shadow:0 4px 44px rgba(10,9,7,.55),0 2px 10px rgba(10,9,7,.35);
}
.ch-body{
  margin-top:22px;font-weight:300;
  font-size:clamp(12.5px,1.25vw,16px);
  letter-spacing:.3em;text-transform:uppercase;
  color:var(--film-ink-dim);line-height:2.05;text-wrap:balance;
  text-shadow:0 2px 24px rgba(10,9,7,.6);
}
.ch-ctas{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.ch-ctas .pill{pointer-events:auto}

/* entering children cascade */
.chapter .ch-eyebrow,.chapter .ch-title,.chapter .ch-body,.chapter .ch-ctas{
  opacity:0;transform:translateY(16px);
  transition:opacity .7s var(--ease-snap),transform .7s var(--ease-snap);
}
.chapter.on .ch-eyebrow{opacity:1;transform:none;transition-delay:.08s}
.chapter.on .ch-title {opacity:1;transform:none;transition-delay:.18s}
.chapter.on .ch-body  {opacity:1;transform:none;transition-delay:.3s}
.chapter.on .ch-ctas  {opacity:1;transform:none;transition-delay:.42s}

/* ============ RAIL (chapter indicator) + progress ============ */
#filmRail{
  position:fixed;right:clamp(14px,3vw,40px);top:50%;transform:translateY(-50%);
  z-index:60;display:flex;flex-direction:column;gap:18px;align-items:flex-end;
}
.rail-tick{
  display:flex;align-items:center;gap:10px;
  font-size:9.5px;letter-spacing:.3em;text-transform:uppercase;
  color:var(--film-ink-faint);transition:color .4s;
}
.rail-tick i{
  display:block;width:18px;height:1px;background:var(--film-line);
  transition:width .45s var(--ease-snap),background .45s var(--ease-snap);
}
.rail-tick.on{color:var(--film-ink)}
.rail-tick.on i{width:34px;background:var(--film-gold)}
.rail-tick span{opacity:.85}

#filmProgress{
  position:fixed;right:clamp(18px,3.4vw,46px);top:50%;transform:translateY(-50%);
  z-index:59;display:flex;align-items:center;gap:10px;
}
#filmBarTrack{
  width:1px;height:180px;background:var(--film-line);position:relative;overflow:hidden;
}
#filmBar{position:absolute;top:0;left:0;width:100%;height:0%;background:var(--film-ink);display:block}
#filmNum{
  position:absolute;bottom:calc(50% + 108px);right:clamp(14px,3vw,40px);
  z-index:61;font-size:10px;letter-spacing:.22em;color:var(--film-ink-dim);
}
#filmTotal{
  position:absolute;top:calc(50% + 108px);right:clamp(14px,3vw,40px);
  z-index:61;font-size:10px;letter-spacing:.22em;color:var(--film-ink-faint);
}
/* scroll cue */
#filmCue{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  z-index:25;display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:9px;letter-spacing:.42em;text-transform:uppercase;color:var(--film-ink-faint);
  transition:opacity .6s;
}
#filmCue::after{
  content:'';width:1px;height:40px;
  background:linear-gradient(180deg,var(--film-gold),transparent);
  animation:filmCueDrip 2.2s var(--ease) infinite;
}
@keyframes filmCueDrip{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ============ RESPONSIVE ============ */
@media (max-width:900px){
  .nav-links{display:none}
  #filmTrack{height:5200px}
  .chapter{padding:0 22px}
  .ch-left{padding-right:10vw}
  .ch-right{padding-left:10vw}
  .chapter::before{width:88vw;height:40vh}
  .ch-title{font-size:clamp(38px,11.5vw,64px)}
  .ch-body{font-size:10.5px;letter-spacing:.2em}
  #filmRail{right:12px;gap:14px}
  .rail-tick{font-size:8.5px}
  .rail-tick i{width:12px}
  .rail-tick.on i{width:22px}
  #filmNum{bottom:calc(50% + 92px);right:11px}
  #filmTotal{top:calc(50% + 92px);right:11px}
}
@media (max-width:600px){
  #filmRail{display:none}
  #filmProgress{right:12px}
  .chapter::before{width:94vw}
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion:reduce){
  .chapter,.chapter .ch-eyebrow,.chapter .ch-title,.chapter .ch-body,.chapter .ch-ctas{
    transition:none!important;animation:none!important;
  }
  .chapter{transform:none!important}
  #filmCue::after{animation:none}
  #filmStage{scroll-behavior:auto}
}