/* ============================================================
   AI Showcase — DECK (Spotlight / Direction A)
   Warm paper, ink, Fraunces display, one accent per pillar.
   ============================================================ */
:root{
  --paper:#F7F4EE;
  --ink:#16130D;
  --muted:#57534E;
  --muted2:#7A7568;
  --line:#E0DACE;
  /* flagship / cici accent */
  --accent:#0891B2;
  --accent-bright:#22D3EE;
  --serif:'Fraunces',Georgia,serif;
  --sans:'Space Grotesk',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}

/* ---------- deck shell ---------- */
#deck{position:fixed;inset:0;overflow:hidden;background:var(--paper)}
.slide{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:center;
  padding:clamp(40px,7vw,118px);
  opacity:0;visibility:hidden;
  transform:translateY(14px);
  transition:opacity .55s var(--ease),transform .55s var(--ease),visibility 0s linear .55s;
  pointer-events:none;
}
.slide.is-active{
  opacity:1;visibility:visible;transform:none;
  transition:opacity .6s var(--ease),transform .6s var(--ease);
  pointer-events:auto;
}
.slide.is-prev{transform:translateY(-14px)}

/* ---------- kicker / headline / caption ---------- */
.kick{
  font-family:var(--mono);font-size:clamp(11px,1.1vw,13px);
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--accent);margin-bottom:clamp(18px,2.4vw,30px);
}
.kick.muted{color:var(--muted2)}
.headline{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(34px,6.2vw,84px);line-height:1.02;
  letter-spacing:-0.02em;max-width:16ch;
}
.headline.lg{font-size:clamp(40px,7.4vw,104px);max-width:14ch}
.sub{
  font-family:var(--serif);font-weight:400;font-style:italic;
  font-size:clamp(18px,2.4vw,30px);color:var(--muted);
  margin-top:clamp(16px,2vw,26px);max-width:30ch;
}
.caption{
  font-family:var(--serif);font-style:italic;
  font-size:clamp(16px,1.9vw,23px);color:var(--ink);
  margin-top:clamp(20px,2.6vw,34px);
}
.note{font-family:var(--sans);font-size:clamp(13px,1.3vw,16px);color:var(--muted);margin-top:14px;max-width:42ch;line-height:1.5}

/* animated accent rule */
.rule{height:3px;width:0;background:var(--accent);border-radius:2px;margin-top:clamp(24px,3vw,38px)}
.slide.is-active .rule{animation:grow 1.1s var(--ease) .25s forwards}
@keyframes grow{to{width:clamp(56px,7vw,104px)}}

/* ---------- cici mark ---------- */
.cici-mark{display:inline-flex;align-items:center;gap:.5em}
.cici-mark svg{display:block;height:1em;width:auto}
.cici-mark .word{font-family:var(--serif);font-weight:600;letter-spacing:-.01em}
.sig{position:absolute;bottom:clamp(28px,4vw,56px);left:clamp(40px,7vw,118px);
  font-size:clamp(15px,1.6vw,21px);color:var(--muted)}

/* ---------- number wall ---------- */
.numgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,3vw,48px);max-width:1100px;margin-top:clamp(8px,1.5vw,18px)}
.num b{display:block;font-family:var(--serif);font-weight:700;
  font-size:clamp(40px,6.4vw,96px);line-height:.92;color:var(--accent);letter-spacing:-.02em}
.num span{display:block;font-family:var(--mono);font-size:clamp(10px,1vw,13px);
  letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:10px}

/* ---------- graph ---------- */
.graph-wrap{position:absolute;inset:0;z-index:0}
.graph-wrap svg{width:100%;height:100%;display:block}
.graph-node{cursor:pointer}
.graph-link{stroke:var(--line);stroke-opacity:.9}
.graph-fg{position:relative;z-index:1;pointer-events:none}
.graph-fg .kick,.graph-fg .caption,.graph-fg .headline{pointer-events:auto}

/* ---------- loop ---------- */
.loop{display:flex;align-items:stretch;gap:0;margin-top:clamp(24px,3.4vw,46px);flex-wrap:wrap}
.loop .step{flex:1 1 0;min-width:130px;padding:clamp(18px,2vw,28px) clamp(16px,1.6vw,24px);
  border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.45);position:relative}
.loop .step .n{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--accent)}
.loop .step h4{font-family:var(--serif);font-weight:600;font-size:clamp(20px,2.4vw,30px);margin-top:10px;line-height:1.05}
.loop .step p{font-family:var(--sans);font-size:clamp(12px,1.2vw,15px);color:var(--muted);margin-top:8px;line-height:1.45}
.loop .arrow{align-self:center;flex:0 0 auto;width:clamp(26px,3vw,52px);height:2px;background:var(--line);position:relative}
.loop .arrow::after{content:"";position:absolute;right:-1px;top:-4px;border-left:8px solid var(--accent);
  border-top:5px solid transparent;border-bottom:5px solid transparent}
.loop-foot{font-family:var(--serif);font-style:italic;font-size:clamp(18px,2.2vw,28px);margin-top:clamp(24px,3vw,40px);color:var(--ink)}

/* ---------- fragment reveals ---------- */
.frag{opacity:0;transform:translateY(16px)}
.slide.is-active .frag{animation:rise .7s var(--ease) forwards}
.slide.is-active .frag{animation-delay:calc(.12s + var(--fi,0)*.09s)}
@keyframes rise{to{opacity:1;transform:none}}

/* ---------- chrome: progress, counter, hint ---------- */
.deck-progress{position:fixed;top:0;left:0;height:3px;background:var(--accent);
  width:0;z-index:50;transition:width .5s var(--ease)}
.deck-counter{position:fixed;bottom:clamp(20px,3vw,34px);right:clamp(24px,4vw,48px);
  font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--muted2);z-index:50}
.deck-counter b{color:var(--ink)}
.deck-hint{position:fixed;bottom:clamp(20px,3vw,34px);left:clamp(24px,4vw,48px);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--muted2);z-index:50;opacity:.7}
.deck-arrows{position:fixed;inset:0;z-index:40;pointer-events:none}
.deck-arrows .z{position:absolute;top:0;bottom:0;width:22%;pointer-events:auto;cursor:pointer}
.deck-arrows .z.left{left:0}
.deck-arrows .z.right{right:0}

/* ---------- overview grid ---------- */
.deck-overview{position:fixed;inset:0;z-index:60;background:rgba(247,244,238,.97);
  display:none;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:14px;padding:clamp(28px,4vw,56px);overflow:auto}
.deck-overview.show{display:grid}
.ov-cell{aspect-ratio:16/9;border:1px solid var(--line);border-radius:12px;cursor:pointer;
  background:#fff;display:flex;align-items:flex-end;padding:12px;position:relative;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.ov-cell:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(20,18,12,.12)}
.ov-cell.cur{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.ov-cell .i{position:absolute;top:10px;left:12px;font-family:var(--mono);font-size:11px;color:var(--muted2)}
.ov-cell .t{font-family:var(--serif);font-size:15px;line-height:1.15;color:var(--ink)}

@media (max-width:760px){
  .numgrid{grid-template-columns:repeat(2,1fr)}
  .loop{flex-direction:column}
  .loop .arrow{display:none}
  .deck-hint{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:opacity .2s linear!important}
  .frag{opacity:1!important;transform:none!important}
  .rule{width:clamp(56px,7vw,104px)!important}
}

/* visible nav arrows (added) */
.deck-arrows .z{display:flex;align-items:center}
.deck-arrows .z.left{justify-content:flex-start}
.deck-arrows .z.right{justify-content:flex-end}
.deck-arrows .z::after{font-family:'Space Grotesk','Helvetica Neue',sans-serif;font-weight:500;font-size:24px;line-height:1;color:var(--ink);background:rgba(255,255,255,.78);border:1px solid rgba(20,19,15,.14);width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 clamp(14px,2.4vw,36px);opacity:.55;transition:opacity .22s,transform .22s,box-shadow .22s;box-shadow:0 6px 18px rgba(20,19,15,.12)}
.deck-arrows .z.left::after{content:'\2039'}
.deck-arrows .z.right::after{content:'\203A'}
.deck-arrows .z:hover::after{opacity:1;transform:scale(1.07);box-shadow:0 9px 24px rgba(20,19,15,.18)}
@media(max-width:640px){.deck-arrows .z::after{width:42px;height:42px;font-size:21px;margin:0 10px}}

.slide{overflow:hidden}

/* pillar divider slides (full-bleed image + scrim) */
.deck-divider{position:absolute;inset:0;overflow:hidden}
.deck-divider .dv-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.03)}
.deck-divider .dv-scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,9,11,.86),rgba(8,9,11,.5) 52%,rgba(8,9,11,.12))}
.deck-divider .dv-fg{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;padding:clamp(40px,7vw,118px);z-index:1}
.deck-divider .dv-num{font-family:var(--mono);font-size:clamp(13px,1.5vw,17px);letter-spacing:.3em;color:var(--dv-accent,var(--accent))}
.deck-divider .dv-name{font-family:var(--serif);font-weight:600;font-size:clamp(48px,9vw,128px);line-height:.98;letter-spacing:-.02em;margin-top:clamp(10px,1.6vw,22px);color:#F7F4EE;max-width:18ch}
.deck-divider .dv-sub{font-family:var(--serif);font-style:italic;font-size:clamp(18px,2.3vw,30px);color:rgba(247,244,238,.82);margin-top:clamp(14px,1.8vw,24px)}
.deck-divider .dv-rule{height:4px;width:0;background:var(--dv-accent,var(--accent));border-radius:2px;margin-top:clamp(24px,3vw,40px)}
.slide.is-active .deck-divider .dv-rule{animation:grow 1s var(--ease) .2s forwards}

/* floating jump-to-pillar nav */
.deck-jump{position:fixed;bottom:clamp(18px,2.6vw,30px);left:50%;transform:translateX(-50%);z-index:55;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);background:rgba(255,255,255,.82);border:1px solid rgba(20,19,15,.16);border-radius:999px;padding:9px 18px;cursor:pointer;box-shadow:0 6px 20px rgba(20,19,15,.14);transition:transform .2s var(--ease),box-shadow .2s var(--ease);display:flex;align-items:center;gap:9px}
.deck-jump:hover{transform:translateX(-50%) translateY(-2px);box-shadow:0 12px 28px rgba(20,19,15,.2)}
.deck-jump .jdot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}
.deck-jump-menu{position:fixed;bottom:clamp(56px,7vw,76px);left:50%;transform:translateX(-50%) translateY(8px);z-index:56;background:rgba(255,255,255,.98);border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:0 22px 60px rgba(20,18,12,.26);display:none;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-flow:column;grid-template-rows:repeat(7,auto);gap:2px 14px;width:min(92vw,540px)}
.deck-jump-menu.open{display:grid;animation:rise .25s var(--ease)}
.deck-jump-menu button{font-family:var(--sans);font-weight:500;font-size:13.5px;text-align:left;background:none;border:0;border-radius:10px;padding:10px 12px;cursor:pointer;color:var(--ink);display:flex;gap:11px;align-items:baseline}
.deck-jump-menu button:hover{background:var(--paper)}
.deck-jump-menu button .jn{font-family:var(--mono);font-size:11px;color:var(--muted2);min-width:20px}
@media(max-width:560px){.deck-jump-menu{grid-auto-flow:row;grid-template-rows:none;grid-template-columns:1fr}}