:root{--black:#070708;--purple:#9c00e9;--blue:#1037b6;--green:#43b642;--red:#ed1c24;--ink:#20222a;--paper:#f7f6fb;--white:#fff}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif}
.reader-header{display:flex;align-items:center;justify-content:space-between;gap:2rem;padding:1rem clamp(1rem,4vw,4rem);background:var(--black);border-bottom:5px solid var(--purple)}
.brand{display:flex;align-items:center;gap:.9rem;color:var(--white);text-decoration:none}.brand img{width:58px;height:58px;object-fit:contain}.brand span{display:grid;gap:.2rem}.brand strong{font-size:1rem}.brand small{color:#d7d7dc}
.back-link{padding:.72rem 1rem;border:1px solid #65656b;border-radius:999px;color:#fff;text-decoration:none;font-weight:700}.back-link:hover,.back-link:focus{border-color:var(--green);outline:none}
main{width:min(1500px,96vw);margin:auto;padding:2.5rem 0 4rem}
.reader-intro{max-width:900px;margin:0 auto 2rem;text-align:center}.eyebrow{margin:0;color:var(--blue);font-weight:800;letter-spacing:.1em;text-transform:uppercase;font-size:.78rem}.reader-intro h1{margin:.45rem 0 .6rem;font-size:clamp(2.3rem,6vw,4.8rem);line-height:.95;color:var(--black)}.reader-intro>p:last-of-type{font-size:1.05rem;line-height:1.65;color:#4d4e59}
.colour-rule{display:grid;grid-template-columns:repeat(4,1fr);height:7px;margin:1.4rem auto 0;max-width:520px;border-radius:10px;overflow:hidden}.colour-rule i:nth-child(1){background:var(--purple)}.colour-rule i:nth-child(2){background:var(--blue)}.colour-rule i:nth-child(3){background:var(--green)}.colour-rule i:nth-child(4){background:var(--red)}
.reader-shell{display:grid;grid-template-columns:minmax(250px,300px) minmax(0,1fr);gap:1.4rem;align-items:start}
.chapter-panel,.slide-panel{background:#fff;border:1px solid #e1e1e8;border-radius:18px;box-shadow:0 16px 45px rgba(20,20,30,.08)}
.chapter-panel{position:sticky;top:1rem;padding:1rem}.chapter-panel label{display:block;margin:.2rem 0 .5rem;font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.chapter-panel select{width:100%;padding:.75rem;border:1px solid #cfd0d9;border-radius:10px;background:#fff;font-weight:700}.chapter-panel nav{display:grid;gap:.35rem;max-height:65vh;margin-top:1rem;overflow:auto}.chapter-panel button{width:100%;padding:.68rem .72rem;border:0;border-left:4px solid transparent;border-radius:7px;background:transparent;color:#353641;text-align:left;cursor:pointer}.chapter-panel button:hover{background:#f3f1f8}.chapter-panel button.active{border-left-color:var(--purple);background:#eee8f7;color:#1b1024;font-weight:800}
.slide-panel{overflow:hidden}.slide-heading{display:flex;align-items:end;justify-content:space-between;gap:1rem;padding:1.2rem 1.35rem;background:var(--black);color:#fff;border-bottom:7px solid var(--blue)}.slide-heading p{margin:0 0 .2rem;color:#b998ff;font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.75rem}.slide-heading h2{margin:0;font-size:clamp(1.2rem,2.5vw,2rem)}#slide-count{white-space:nowrap;color:#d4d5da;font-weight:700}
.slide-stage{position:relative;aspect-ratio:16/9;background:#111;display:grid;place-items:center;overflow:hidden;user-select:none}.slide-stage::after{content:"CFC PUBLIC READER";position:absolute;right:.7rem;bottom:.55rem;padding:.25rem .45rem;border-radius:4px;background:rgba(7,7,8,.65);color:rgba(255,255,255,.8);font-size:.62rem;letter-spacing:.08em;pointer-events:none}.slide-stage img{display:block;width:100%;height:100%;object-fit:contain;pointer-events:none}
.slide-controls{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:1rem;border-top:1px solid #e6e6ed}.slide-controls button,.slide-controls select{padding:.72rem .9rem;border:1px solid #c9cad3;border-radius:10px;background:#fff;color:#171821;font-weight:800}.slide-controls button{cursor:pointer}.slide-controls button:hover:not(:disabled){border-color:var(--blue);color:var(--blue)}.slide-controls button:disabled{opacity:.4;cursor:not-allowed}.slide-controls label{font-weight:800}.view-note{margin:0;padding:0 1rem 1.1rem;text-align:center;color:#686975;font-size:.85rem}
footer{display:flex;justify-content:center;align-items:center;gap:.7rem;padding:1.5rem;background:var(--black);color:#ddd}footer img{width:42px;height:42px;object-fit:contain}footer p{margin:0}
@media(max-width:850px){.reader-shell{grid-template-columns:1fr}.chapter-panel{position:static}.chapter-panel nav{display:none}.reader-header{align-items:flex-start}.back-link{font-size:.8rem}.slide-heading{align-items:flex-start;flex-direction:column}.slide-controls{flex-wrap:wrap}}
@media(max-width:520px){main{width:100%;padding-top:1.5rem}.reader-intro{padding:0 1rem}.reader-shell{gap:0}.chapter-panel,.slide-panel{border-radius:0}.brand strong{font-size:.85rem}.brand small{font-size:.7rem}.brand img{width:44px;height:44px}.back-link{padding:.55rem .7rem}.slide-controls button{flex:1}.slide-controls label{display:none}}