:root {
  --bg:#0A0E2A; --bg2:#0F1535; --bg3:#151C42;
  --cyan:#00F5FF; --lime:#CCFF00; --coral:#FF6B6B; --purple:#7B68EE;
  --white:#F0F4FF; --muted:#8892B0; --card:rgba(255,255,255,0.04);
  --border:rgba(255,255,255,0.08); --r:16px; --rs:8px;
  --fd:'Syne',sans-serif; --fb:'Plus Jakarta Sans',sans-serif; --fm:'Space Mono',monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--white);font-family:var(--fb)}

/* CANVAS */
#bg{position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.35}

/* PROGRESS */
.prog-wrap{position:fixed;top:0;left:0;right:0;height:4px;background:rgba(255,255,255,.08);z-index:100}
.prog-bar{height:100%;background:linear-gradient(90deg,var(--cyan),var(--lime));transition:width .5s ease;width:10%}
.prog-lbl{position:fixed;top:10px;right:16px;font-family:var(--fm);font-size:11px;color:var(--muted);z-index:101}

/* DECK */
.deck{position:fixed;inset:0;z-index:1}
.slide{position:absolute;inset:0;display:flex;flex-direction:column;padding:56px 60px 76px;
  opacity:0;pointer-events:none;transform:translateX(60px);
  transition:opacity .45s ease,transform .45s cubic-bezier(.4,0,.2,1);overflow-y:auto}
.slide.active{opacity:1;pointer-events:all;transform:translateX(0)}
.slide::-webkit-scrollbar{width:3px}
.slide::-webkit-scrollbar-thumb{background:rgba(0,245,255,.2);border-radius:2px}

/* HEADER */
.slide-hdr{margin-bottom:28px}
.tag{display:inline-block;font-family:var(--fm);font-size:11px;color:var(--cyan);
  letter-spacing:2px;text-transform:uppercase;background:rgba(0,245,255,.1);
  border:1px solid rgba(0,245,255,.2);padding:4px 12px;border-radius:20px;margin-bottom:10px}
.slide-hdr h2{font-family:var(--fd);font-size:clamp(26px,3.2vw,42px);font-weight:700;line-height:1.1}

/* ── SLIDE 1 HERO ── */
.slide[data-slide="1"]{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;padding-top:72px}
.glow-orb{position:absolute;top:-80px;left:-80px;width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,245,255,.1) 0%,transparent 70%);pointer-events:none}
.hero-left{flex:1;max-width:540px}
.badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--fm);font-size:12px;
  color:var(--lime);background:rgba(204,255,0,.1);border:1px solid rgba(204,255,0,.25);
  padding:6px 16px;border-radius:20px;margin-bottom:22px}
h1{font-family:var(--fd);font-size:clamp(40px,5.5vw,76px);font-weight:800;line-height:1;margin-bottom:18px}
.grad{background:linear-gradient(135deg,var(--cyan),var(--lime));-webkit-background-clip:text;
  -webkit-text-fill-color:transparent;background-clip:text}
.sub{font-size:15px;color:var(--muted);line-height:1.7;margin-bottom:28px;max-width:420px}
.hero-stats{display:flex;gap:28px;margin-bottom:32px}
.stat{display:flex;flex-direction:column}
.sn{font-family:var(--fd);font-size:34px;font-weight:700;color:var(--cyan);line-height:1}
.sl{font-size:12px;color:var(--muted);margin-top:3px}
.hero-right{flex:0 0 300px;display:flex;flex-direction:column;align-items:center}
.hero-mol{width:260px;height:260px;filter:drop-shadow(0 0 28px rgba(0,245,255,.3))}
.mol-lbl{font-family:var(--fm);font-size:13px;color:var(--cyan);margin-top:10px}
.al{font-family:var(--fd);font-size:20px;font-weight:700;fill:white}
.als{font-family:var(--fd);font-size:13px;font-weight:700;fill:#0A0E2A}
.bond{stroke-dasharray:120;stroke-dashoffset:120;animation:drawB 1s ease forwards .4s}
@keyframes drawB{to{stroke-dashoffset:0}}
.pa{animation:pulseA 2s ease-in-out infinite}
@keyframes pulseA{0%,100%{r:34}50%{r:38}}
.fa1{animation:floatA 3s ease-in-out infinite}
.fa2{animation:floatB 3s ease-in-out infinite .5s}
@keyframes floatA{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes floatB{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}

/* ── SLIDE 2 ── */
.c3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:22px;
  transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-4px)}
.cyan-glow{box-shadow:0 0 0 1px rgba(0,245,255,.15),0 8px 28px rgba(0,245,255,.08)}
.lime-glow{box-shadow:0 0 0 1px rgba(204,255,0,.15),0 8px 28px rgba(204,255,0,.08)}
.coral-glow{box-shadow:0 0 0 1px rgba(255,107,107,.15),0 8px 28px rgba(255,107,107,.08)}
.ci{font-size:30px;margin-bottom:10px}
.card h3{font-family:var(--fd);font-size:18px;margin-bottom:8px}
.card p{font-size:13px;color:var(--muted);line-height:1.6;margin-bottom:12px}
.chip{display:inline-block;font-family:var(--fm);font-size:12px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);padding:4px 12px;border-radius:6px;color:var(--cyan)}
.rxn-box{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:18px 28px;text-align:center}
.rxn-demo{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:8px}
.ma{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--fm);font-size:12px;font-weight:700;animation:bob 2s ease-in-out infinite}
.ma.cyan{background:rgba(0,245,255,.2);border:2px solid var(--cyan);color:var(--cyan)}
.ma.coral{background:rgba(255,107,107,.2);border:2px solid var(--coral);color:var(--coral)}
.ma.purple{background:rgba(123,104,238,.2);border:2px solid var(--purple);color:var(--purple);width:58px}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.ps{font-size:22px;color:var(--muted)}
.arr-anim{font-size:26px;color:var(--lime);animation:arrP 1.5s ease-in-out infinite}
@keyframes arrP{0%,100%{transform:scaleX(1)}50%{transform:scaleX(1.3)}}
.prod{animation:bob 2s ease-in-out infinite,fadeS .6s ease forwards}
@keyframes fadeS{from{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}
.dc{font-size:12px;color:var(--muted);font-family:var(--fm)}

/* ── SLIDE 3 ── */
.law-wrap{display:flex;flex-direction:column;gap:24px}
.quote-box{background:linear-gradient(135deg,rgba(0,245,255,.06),rgba(204,255,0,.04));
  border-left:3px solid var(--cyan);border-radius:0 var(--r) var(--r) 0;padding:18px 24px}
.quote-box blockquote{font-family:var(--fd);font-size:clamp(15px,1.8vw,20px);font-style:italic;margin-bottom:6px}
.quote-box cite{font-size:12px;color:var(--cyan);font-family:var(--fm)}
.scale-wrap{display:flex;flex-direction:column;align-items:center;gap:14px}
.scale-anim{display:flex;align-items:flex-start;gap:60px;animation:rock 3s ease-in-out infinite}
@keyframes rock{0%,100%{transform:rotate(0)}25%{transform:rotate(-2deg)}75%{transform:rotate(2deg)}}
.pan{width:140px;background:var(--card);border:1px solid var(--border);border-radius:var(--rs);padding:10px;text-align:center}
.pan-atoms{display:flex;flex-wrap:wrap;gap:4px;justify-content:center;margin-bottom:6px}
.pa-dot{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:9px;font-weight:700;color:#0A0E2A;font-family:var(--fm)}
.pan-lbl{font-size:11px;color:var(--muted);font-family:var(--fm)}
.scale-pole{width:3px;height:50px;background:var(--muted);border-radius:2px;align-self:flex-end;margin-bottom:0}
.bal-eq{display:flex;align-items:center;gap:14px;font-family:var(--fm);font-size:17px}
.re{color:var(--cyan)}.pe{color:var(--lime)}.ae{color:var(--muted);font-size:20px}
.bn{font-size:13px;color:var(--lime);font-family:var(--fm)}

/* ── SLIDE 4 ── */
.steps{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.step{display:flex;gap:14px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r);padding:18px;transition:border-color .3s}
.step:hover{border-color:rgba(0,245,255,.3)}
.step-num{font-family:var(--fd);font-size:34px;font-weight:700;color:rgba(0,245,255,.2);line-height:1;flex-shrink:0;width:44px}
.sc h3{font-family:var(--fd);font-size:15px;margin-bottom:5px}
.sc p{font-size:12px;color:var(--muted);line-height:1.5;margin-bottom:8px}
.ex{font-family:var(--fm);font-size:13px;padding:7px 12px;border-radius:var(--rs);display:inline-block}
.ub{background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.3);color:var(--coral)}
.bl{background:rgba(204,255,0,.1);border:1px solid rgba(204,255,0,.3);color:var(--lime)}
.ct{display:flex;flex-direction:column;gap:3px}
.cr{display:flex;align-items:center;gap:7px;font-family:var(--fm);font-size:12px}
.el{width:18px;font-weight:700}
.bad{color:var(--coral)}.good{color:var(--lime)}.vs{color:var(--muted);font-size:10px}.ck{color:var(--lime)}

/* ── SLIDE 5 ── */
.anim-wrap{display:flex;flex-direction:column;align-items:center;gap:20px;flex:1}
.eq-disp{font-family:var(--fm);font-size:clamp(16px,2.2vw,26px);color:var(--white);
  background:var(--card);border:1px solid var(--border);padding:12px 24px;border-radius:var(--r)}
.cf{color:var(--lime);font-weight:700}.op{color:var(--muted);margin:0 6px}
.mol-stage{width:100%;max-width:680px;height:170px;background:var(--card);
  border:1px solid var(--border);border-radius:var(--r);position:relative;overflow:hidden}
.anim-btns{display:flex;gap:10px}
.btn-a{font-family:var(--fm);font-size:12px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.15);color:var(--white);padding:9px 22px;
  border-radius:var(--rs);cursor:pointer;transition:all .2s}
.btn-a:hover{background:rgba(0,245,255,.1);border-color:var(--cyan);color:var(--cyan)}
.cnt-disp{display:flex;gap:28px;background:var(--card);border:1px solid var(--border);
  padding:12px 24px;border-radius:var(--r)}
.cg{display:flex;align-items:center;gap:8px;font-family:var(--fm);font-size:13px}
.cl{color:var(--muted)}.cv{font-size:18px;font-weight:700}.cv.cyan{color:var(--cyan)}.cv.coral{color:var(--coral)}
.ca{color:var(--muted)}.cc{color:var(--lime);font-size:16px}
.mol-node{position:absolute;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--fm);font-weight:700;color:#0A0E2A;transition:all 1.2s cubic-bezier(.4,0,.2,1)}

/* ── SLIDES 6 & 7 BALANCER ── */
.balancer{display:flex;flex-direction:column;gap:18px;flex:1}
.ctx-box{display:flex;align-items:center;gap:12px;background:rgba(204,255,0,.06);
  border:1px solid rgba(204,255,0,.15);border-radius:var(--rs);padding:10px 16px}
.ctx-ic{font-size:26px}.ctx-box p{font-size:13px;color:var(--muted);line-height:1.5}
.eq-ch{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:22px 28px}
.eq-s{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.et{display:flex;flex-direction:column;align-items:center;gap:7px}
.cc{display:flex;align-items:center;gap:7px}
.cb{width:26px;height:26px;border-radius:50%;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.15);color:var(--white);font-size:15px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:all .2s;line-height:1}
.cb:hover{background:rgba(0,245,255,.15);border-color:var(--cyan);color:var(--cyan)}
.cd{font-family:var(--fd);font-size:26px;font-weight:700;color:var(--lime);min-width:30px;
  text-align:center;transition:transform .2s,color .2s}
.cd.bump{transform:scale(1.35);color:var(--cyan)}
.fd{font-family:var(--fm);font-size:18px;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);padding:7px 14px;border-radius:var(--rs)}
.ep{font-size:22px;color:var(--muted)}.ea{font-size:30px;color:var(--cyan)}
.tracker{display:flex;flex-direction:column;gap:9px;background:var(--card);
  border:1px solid var(--border);border-radius:var(--r);padding:14px 22px}
.tr{display:flex;align-items:center;gap:10px;font-family:var(--fm);font-size:14px}
.te{width:22px;font-weight:700}.te.cyan{color:var(--cyan)}.te.coral{color:var(--coral)}.te.lime{color:var(--lime)}
.tn{font-size:19px;font-weight:700;min-width:26px;text-align:center;transition:color .3s}
.tvs{color:var(--muted);font-size:11px}.ts{font-size:17px;transition:all .3s}
.fb{min-height:42px;font-family:var(--fm);font-size:13px;padding:9px 14px;border-radius:var(--rs);transition:all .3s}
.fb.ok{background:rgba(204,255,0,.1);border:1px solid rgba(204,255,0,.3);color:var(--lime)}
.fb.err{background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.3);color:var(--coral)}
.fb.tip{background:rgba(0,245,255,.08);border:1px solid rgba(0,245,255,.2);color:var(--cyan)}
.ba{display:flex;gap:10px}
.btn-ck{font-family:var(--fb);font-size:13px;font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--lime));color:#0A0E2A;
  border:none;padding:11px 26px;border-radius:var(--rs);cursor:pointer;transition:all .2s}
.btn-ck:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(0,245,255,.3)}
.btn-ht{font-family:var(--fb);font-size:13px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.15);color:var(--white);padding:11px 18px;
  border-radius:var(--rs);cursor:pointer;transition:all .2s}
.btn-ht:hover{background:rgba(0,245,255,.08);border-color:var(--cyan)}

/* ── SLIDE 8 TYPES ── */
.types{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:14px}
.tc{background:var(--card);border:1px solid var(--border);border-radius:var(--r);
  padding:14px 10px;text-align:center;cursor:pointer;transition:all .3s}
.tc:hover,.tc.sel{border-color:var(--cyan);background:rgba(0,245,255,.06);
  transform:translateY(-4px);box-shadow:0 8px 22px rgba(0,245,255,.15)}
.ti{font-size:26px;margin-bottom:7px}
.tc h3{font-family:var(--fd);font-size:13px;margin-bottom:5px}
.teq{font-family:var(--fm);font-size:10px;color:var(--cyan);margin-bottom:5px}
.tex{font-family:var(--fm);font-size:9px;color:var(--muted)}
.td{background:var(--card);border:1px solid rgba(0,245,255,.2);border-radius:var(--r);
  padding:14px 18px;min-height:52px;font-size:13px;color:var(--muted);transition:all .3s}

/* ── SLIDE 9 QUIZ ── */
.quiz{flex:1;display:flex;flex-direction:column;gap:18px}
.qpb{height:5px;background:rgba(255,255,255,.08);border-radius:3px;overflow:hidden}
.qpf{height:100%;background:linear-gradient(90deg,var(--cyan),var(--lime));transition:width .5s ease;border-radius:3px}
.qa{flex:1;display:flex;flex-direction:column;gap:14px}
.qt{font-family:var(--fd);font-size:clamp(16px,2.2vw,24px);line-height:1.3;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:18px 22px}
.qnum{font-family:var(--fm);font-size:11px;color:var(--cyan);margin-bottom:7px}
.og{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.ob{background:var(--card);border:1px solid var(--border);border-radius:var(--rs);
  padding:12px 16px;font-family:var(--fm);font-size:13px;color:var(--white);
  cursor:pointer;text-align:left;transition:all .2s}
.ob:hover:not(:disabled){border-color:var(--cyan);background:rgba(0,245,255,.06)}
.ob.correct{border-color:var(--lime);background:rgba(204,255,0,.1);color:var(--lime)}
.ob.wrong{border-color:var(--coral);background:rgba(255,107,107,.1);color:var(--coral)}
.qf{font-family:var(--fm);font-size:13px;padding:10px 16px;border-radius:var(--rs);min-height:40px}
.qf.correct{background:rgba(204,255,0,.1);border:1px solid rgba(204,255,0,.3);color:var(--lime)}
.qf.wrong{background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.3);color:var(--coral)}
.btn-nq{align-self:flex-start;font-family:var(--fb);font-size:13px;font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--lime));color:#0A0E2A;
  border:none;padding:9px 22px;border-radius:var(--rs);cursor:pointer;transition:all .2s}
.btn-nq:hover{transform:translateY(-2px)}
.qs{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px}
.score-circle{width:110px;height:110px;border-radius:50%;
  background:linear-gradient(135deg,rgba(0,245,255,.15),rgba(204,255,0,.1));
  border:3px solid var(--cyan);display:flex;align-items:center;justify-content:center;
  flex-direction:column;box-shadow:0 0 36px rgba(0,245,255,.2)}
.scn{font-family:var(--fd);font-size:44px;font-weight:700;color:var(--cyan);line-height:1}
.sct{font-family:var(--fm);font-size:14px;color:var(--muted)}
.qs h3{font-family:var(--fd);font-size:22px}

/* ── SLIDE 10 SUMMARY ── */
.sum{display:flex;gap:36px;flex:1}
.tl{flex:1;display:flex;flex-direction:column;gap:12px}
.ti-row{display:flex;align-items:flex-start;gap:12px;background:var(--card);
  border:1px solid var(--border);border-radius:var(--rs);padding:12px 16px;
  animation:slideL .5s ease both;animation-delay:var(--d)}
@keyframes slideL{from{opacity:0;transform:translateX(-18px)}to{opacity:1;transform:translateX(0)}}
.tik{font-size:22px;flex-shrink:0}
.ti-row strong{font-family:var(--fd);font-size:14px;display:block;margin-bottom:3px}
.ti-row p{font-size:12px;color:var(--muted);line-height:1.5}
.sv{flex:0 0 260px;display:flex;flex-direction:column;gap:16px}
.cs{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:18px;flex:1}
.cst{font-family:var(--fd);font-size:13px;color:var(--cyan);margin-bottom:12px;text-transform:uppercase;letter-spacing:1px}
.cr2{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.05);font-family:var(--fm);font-size:11px}
.cr2:last-child{border-bottom:none}
.ck2{color:var(--muted)}.cv2{color:var(--lime)}
.cb2{background:linear-gradient(135deg,rgba(0,245,255,.1),rgba(204,255,0,.08));
  border:1px solid rgba(0,245,255,.2);border-radius:var(--r);padding:18px;text-align:center}
.cbs{font-size:36px;margin-bottom:7px;animation:spin 3s linear infinite}
@keyframes spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}
.cbt{font-family:var(--fd);font-size:17px;font-weight:700;color:var(--lime);line-height:1.3}
.ne{display:flex;gap:10px;margin-top:18px}

/* BUTTONS */
.btn-p{font-family:var(--fb);font-size:14px;font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--lime));color:#0A0E2A;
  border:none;padding:13px 30px;border-radius:var(--rs);cursor:pointer;transition:all .25s;
  display:inline-flex;align-items:center;gap:7px}
.btn-p:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(0,245,255,.35)}
.btn-s{font-family:var(--fb);font-size:14px;font-weight:600;background:transparent;
  border:1px solid rgba(255,255,255,.2);color:var(--white);padding:13px 30px;
  border-radius:var(--rs);cursor:pointer;transition:all .25s}
.btn-s:hover{border-color:var(--cyan);color:var(--cyan)}

/* NAV */
.nav{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:18px;z-index:100;
  background:rgba(10,14,42,.88);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.1);border-radius:40px;padding:9px 18px}
.nb{font-family:var(--fm);font-size:12px;background:transparent;
  border:1px solid rgba(255,255,255,.15);color:var(--white);padding:7px 16px;
  border-radius:20px;cursor:pointer;transition:all .2s}
.nb:hover:not(:disabled){border-color:var(--cyan);color:var(--cyan)}
.nb:disabled{opacity:.3;cursor:not-allowed}
.dots{display:flex;gap:5px}
.dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.2);cursor:pointer;transition:all .3s}
.dot.active{background:var(--cyan);box-shadow:0 0 7px var(--cyan);width:18px;border-radius:4px}
.kh{position:fixed;bottom:7px;right:14px;font-family:var(--fm);font-size:10px;color:rgba(255,255,255,.18);z-index:100}

@media(max-width:900px){
  .slide{padding:46px 20px 76px}
  .slide[data-slide="1"]{flex-direction:column}
  .hero-right{display:none}
  .c3,.steps{grid-template-columns:1fr}
  .types{grid-template-columns:repeat(3,1fr)}
  .sum{flex-direction:column}
  .sv{flex:none}
}