:root{
  /* foundation, sampled from the Bitcoin Wealth deck */
  --void:#000000; --ink:#070808; --ink-green:#0C130B; --ink-moss:#1D2F1B;
  /* brand */
  --orange:#FFA101; --green:#3FC11F; --lime:#C0FF72;
  /* structural */
  --gold:#C68010; --gold-deep:#9A6209; --gold-dark:#654314;
  --blue:#004AAD; --blue-lt:#5C9CE6; --lilac:#E2A9F0;
  /* neutrals */
  --text:#F5F1E8; --muted:#9E9A8C; --dim:#6B6860;
  --line:rgba(255,161,1,.16); --line-hi:rgba(255,161,1,.4);
  --disp:"Chakra Petch",system-ui,sans-serif;
  --body:"Manrope",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;
  --r:14px; --maxw:1080px; --read:68ch;
  --navh:68px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--void); color:var(--text); font-family:var(--body);
  font-size:16px; line-height:1.68; min-height:100dvh; overflow-x:hidden;
  -webkit-font-smoothing:antialiased; padding-bottom:env(safe-area-inset-bottom);
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(700px 420px at 8% -6%, rgba(255,161,1,.10), transparent 60%),
    radial-gradient(760px 460px at 96% 2%, rgba(63,193,31,.09), transparent 62%),
    radial-gradient(900px 620px at 50% 112%, rgba(255,161,1,.07), transparent 60%);
}
#app{position:relative;z-index:1}
h1,h2,h3,h4,.disp{font-family:var(--disp);line-height:1.12;letter-spacing:-.005em}
a{color:var(--orange);text-decoration:none}

:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px}
button{font:inherit;color:inherit;cursor:pointer;border:none;background:none}
@media (prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.read{max-width:var(--read)}
.stage{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:36px 16px}
.pad{padding-top:28px;padding-bottom:calc(var(--navh) + 46px)}
@media(min-width:860px){.pad{padding-bottom:60px}}

/* ---------- wordmark ---------- */
.wm{font-family:var(--disp);font-weight:700;letter-spacing:.14em;text-transform:uppercase;line-height:1}
.wm .o{color:var(--orange)} .wm .g{color:var(--green)}
.brand{display:flex;align-items:center;gap:11px}
.mark{
  width:38px;height:38px;flex:none;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 34% 28%,#151008,#000);
  border:2px solid var(--orange);
  box-shadow:0 0 0 2px rgba(63,193,31,.5), 0 0 16px rgba(255,161,1,.35);
  font-family:var(--disp);font-weight:700;font-size:13px;color:var(--green);
}
.brand-sub{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--dim);margin-top:3px}

/* ---------- gold frame, the deck's slot-card component ---------- */
.frame{
  position:relative;border-radius:16px;padding:2px;
  background:linear-gradient(160deg,var(--gold) 0%,var(--gold-dark) 42%,#2a1c08 100%);
  box-shadow:0 0 26px rgba(198,128,16,.13), 0 16px 44px rgba(0,0,0,.75);
}
.frame > .frame-in{
  border-radius:14px;background:linear-gradient(180deg,#0b0906,#030302);
  box-shadow:inset 0 1px 0 rgba(198,128,16,.30), inset 0 0 40px rgba(198,128,16,.05);
}
.panel{
  background:linear-gradient(172deg,rgba(12,19,11,.9),rgba(7,8,8,.94));
  border:1px solid var(--line);border-radius:var(--r);
  box-shadow:0 16px 44px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,161,1,.07);
}
.lift{box-shadow:0 0 0 1px rgba(255,161,1,.22), 0 0 30px rgba(255,161,1,.10), 0 20px 52px rgba(0,0,0,.75)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--disp);font-weight:700;font-size:14.5px;letter-spacing:.07em;text-transform:uppercase;
  padding:15px 26px;border-radius:12px;border:1px solid transparent;min-height:52px;width:100%;
  transition:transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s;
}
@media(min-width:620px){.btn{width:auto}}
.btn-primary{background:linear-gradient(135deg,#FFB730,var(--orange));color:#140b00;box-shadow:0 8px 24px rgba(255,161,1,.32)}

.btn-go{background:linear-gradient(135deg,#57D634,var(--green));color:#06180b;box-shadow:0 8px 24px rgba(63,193,31,.3)}

.btn-ghost{background:rgba(255,161,1,.07);border-color:var(--line-hi);color:var(--orange)}

.btn-quiet{background:transparent;border-color:rgba(158,154,140,.28);color:var(--muted)}

.btn-sm{min-height:0;padding:9px 15px;font-size:12.5px;width:auto}
.btn:disabled{opacity:.38;cursor:not-allowed;transform:none}
.row{display:flex;flex-wrap:wrap;gap:11px}

/* ---------- forms ---------- */
.field{margin-bottom:17px}
.lb{display:block;font-family:var(--disp);font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--orange);margin-bottom:8px}
.inp{
  width:100%;padding:15px 16px;font-size:16px;font-family:var(--body);color:var(--text);
  background:#000;border:1px solid var(--line);border-radius:11px;min-height:54px;
}
.inp:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,161,1,.18)}
.inp::placeholder{color:var(--dim)}
.err{color:#FF8A6B;font-size:14px;margin-top:9px;display:block}
.pw{position:relative}
.pw .inp{padding-right:58px}
.pweye{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:46px;height:46px;border-radius:10px;display:grid;place-items:center;color:var(--muted);
}

.pweye svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.pweye.on{color:var(--orange)}
.hint{color:var(--muted);font-size:14px;margin-top:11px}
.codebox{display:flex;gap:8px;justify-content:space-between}
.codebox input{
  width:100%;aspect-ratio:1/1.15;min-height:56px;text-align:center;padding:0;
  font-family:var(--mono);font-size:24px;font-weight:700;color:var(--orange);
  background:#000;border:1px solid var(--line);border-radius:11px;
}
.codebox input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,161,1,.18)}

/* ---------- step indicator ---------- */
.steps{display:flex;align-items:center;gap:9px;margin-bottom:22px}
.steps i{flex:1;height:3px;border-radius:2px;background:rgba(255,161,1,.16)}
.steps i.on{background:var(--orange);box-shadow:0 0 10px rgba(255,161,1,.6)}
.steps span{font-family:var(--mono);font-size:11.5px;color:var(--dim);letter-spacing:.08em}

/* ---------- eyebrow + tags ---------- */
.eyebrow{font-family:var(--disp);font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--orange);margin-bottom:11px}
.eyebrow::before{content:"\2192\00a0\00a0";color:var(--green)}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-family:var(--disp);font-size:10px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;padding:5px 11px;border-radius:99px;border:1px solid;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 7px currentColor}
.tag-fact{color:var(--orange);border-color:rgba(255,161,1,.5);background:rgba(255,161,1,.09)}
.tag-claim{color:var(--lilac);border-color:rgba(226,169,240,.55);background:rgba(226,169,240,.11)}
.tag-math{color:var(--lime);border-color:rgba(192,255,114,.42);background:rgba(192,255,114,.07)}

/* ---------- lesson body ---------- */
.lesson-body{max-width:var(--read)}
.lesson-body h3{font-size:21px;margin:32px 0 12px;color:var(--orange)}
.lesson-body h4{font-size:16.5px;margin:24px 0 9px;color:var(--green)}
.lesson-body p{margin:0 0 15px;color:#DAD5C9}
.lesson-body ul,.lesson-body ol{margin:0 0 16px;padding-left:22px;color:#DAD5C9}
.lesson-body li{margin-bottom:9px}
.lesson-body li::marker{color:var(--orange)}
.lesson-body strong{color:#fff;font-weight:600}
.lesson-body em{color:var(--muted)}
.lesson-body code{font-family:var(--mono);font-size:13px;background:rgba(255,161,1,.1);padding:3px 7px;border-radius:6px;color:var(--orange);word-break:break-all}

.box{border-radius:13px;padding:18px 20px;margin:22px 0;border:1px solid}
.box > .tag{margin-bottom:11px}
.box p:last-child,.box ul:last-child,.box ol:last-child{margin-bottom:0}
.box-fact{background:rgba(255,161,1,.045);border-color:rgba(255,161,1,.26)}
.box-claim{background:rgba(226,169,240,.05);border-color:rgba(226,169,240,.32)}
.box-math{background:linear-gradient(160deg,rgba(192,255,114,.05),rgba(63,193,31,.03));border-color:rgba(192,255,114,.28)}
.box-note{background:rgba(255,255,255,.028);border-color:rgba(158,154,140,.24)}
.box-math .work{
  font-family:var(--mono);font-size:13.5px;line-height:1.95;color:var(--lime);
  background:#000;border:1px solid rgba(192,255,114,.18);border-radius:10px;
  padding:14px 16px;margin:13px 0;overflow-x:auto;white-space:pre;
  -webkit-overflow-scrolling:touch;touch-action:pan-x pan-y;overscroll-behavior-x:contain;
}
.flag{color:var(--gold)}

.takeaways{background:linear-gradient(150deg,rgba(63,193,31,.11),rgba(255,161,1,.04));border:1px solid rgba(63,193,31,.3);border-radius:14px;padding:20px;margin:30px 0 6px;max-width:var(--read)}
.takeaways h4{font-family:var(--disp);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--green);margin:0 0 13px}
.takeaways ul{list-style:none;padding:0;margin:0}
.takeaways li{position:relative;padding-left:25px;margin-bottom:11px;color:#E2DDD0}
.takeaways li::before{content:"";position:absolute;left:3px;top:10px;width:8px;height:8px;border-radius:2px;background:var(--green);box-shadow:0 0 8px var(--green)}

/* ---------- tables ---------- */
.tbl-scroll{position:relative;overflow-x:auto;overflow-y:hidden;margin:20px 0;-webkit-overflow-scrolling:touch;border-radius:12px;border:1px solid rgba(198,128,16,.34);max-width:100%;touch-action:pan-x pan-y;overscroll-behavior-x:contain}
.tbl-scroll::after{content:"";position:sticky;top:0;right:0;float:right;width:26px;height:100%;background:linear-gradient(90deg,transparent,#000);pointer-events:none}
table{border-collapse:collapse;width:100%;min-width:500px;font-size:14px;background:#040403}
th{background:linear-gradient(180deg,rgba(198,128,16,.22),rgba(198,128,16,.09));font-family:var(--disp);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--gold);padding:13px 14px;text-align:left;white-space:nowrap;border-bottom:1px solid rgba(198,128,16,.35)}
td{padding:12px 14px;border-top:1px solid rgba(198,128,16,.13);color:var(--lime);font-family:var(--mono);font-size:13px;white-space:nowrap}
td.t{font-family:var(--body);font-size:14.5px;color:#DAD5C9;white-space:normal}
tr:nth-child(even) td{background:rgba(29,47,27,.3)}
.tfoot td{background:rgba(198,128,16,.16);font-weight:700;color:var(--orange)}

/* ---------- step cards (wallet guides) ---------- */
.gsteps{position:relative;max-width:var(--read)}
.gsteps::before{content:"";position:absolute;left:27px;top:34px;bottom:34px;width:2px;background:linear-gradient(180deg,var(--orange),var(--green));opacity:.35}
.step{position:relative;display:flex;gap:17px;margin-bottom:14px;background:linear-gradient(170deg,rgba(12,19,11,.92),rgba(4,4,3,.95));border:1px solid var(--line);border-radius:15px;padding:18px 19px}
.step-n{
  flex:none;width:56px;height:56px;margin:-4px 0 0 -6px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--disp);font-weight:700;font-size:23px;color:var(--orange);
  border:2px solid var(--orange);background:radial-gradient(circle at 35% 30%,#1a1105,#000);
  box-shadow:0 0 18px rgba(255,161,1,.4), inset 0 0 12px rgba(255,161,1,.14);
}
.step h4{margin:6px 0 7px;font-size:17px;color:var(--orange)}
.step p{margin:0;color:#D2CDC1;font-size:15px}

/* ---------- cards ---------- */
.grid{display:grid;gap:14px}
@media(min-width:720px){.grid.g2{grid-template-columns:1fr 1fr}.grid.g3{grid-template-columns:repeat(3,1fr)}}
.card{
  display:block;width:100%;text-align:left;font:inherit;color:inherit;
  background:linear-gradient(170deg,rgba(12,19,11,.85),rgba(5,5,4,.92));
  border:1px solid var(--line);border-radius:15px;padding:19px;
  transition:transform .18s ease,border-color .18s,box-shadow .18s;
}

.card h4{font-size:17px;margin-bottom:6px;color:var(--text)}
.card p{font-size:14px;color:var(--muted);margin:0}
.card.done{border-color:rgba(63,193,31,.4)}
.pill{display:inline-block;font-family:var(--disp);font-size:10px;letter-spacing:.15em;text-transform:uppercase;padding:4px 10px;border-radius:99px;margin-bottom:11px;font-weight:700}
.pill-done{background:rgba(63,193,31,.14);color:var(--green);border:1px solid rgba(63,193,31,.4)}
.pill-now{background:rgba(255,161,1,.14);color:var(--orange);border:1px solid var(--line-hi)}
.pill-todo{background:rgba(158,154,140,.09);color:var(--dim);border:1px solid rgba(158,154,140,.22)}
.meta{margin-top:10px;font-family:var(--mono);font-size:12px;color:var(--gold)}

/* ---------- quiz ---------- */
.quiz{background:linear-gradient(165deg,rgba(12,19,11,.9),#030302);border:1px solid rgba(63,193,31,.28);border-radius:16px;padding:22px;margin-top:32px;max-width:var(--read)}
.opt{display:flex;gap:13px;align-items:flex-start;width:100%;text-align:left;padding:15px 16px;margin-bottom:10px;border-radius:12px;border:1px solid var(--line);background:rgba(7,8,8,.8);font-size:15px;min-height:58px;transition:border-color .15s,background .15s}

.opt .k{flex:none;width:27px;height:27px;border-radius:8px;display:grid;place-items:center;font-family:var(--disp);font-weight:700;font-size:13px;background:rgba(255,161,1,.15);color:var(--orange)}
.opt.right{border-color:var(--green);background:rgba(63,193,31,.1)}
.opt.right .k{background:var(--green);color:#04180c}
.opt.wrong{border-color:#E2565C;background:rgba(226,86,92,.09)}
.opt.wrong .k{background:#E2565C;color:#2a0710}
.opt:disabled{cursor:default}
.feedback{border-radius:12px;padding:16px 18px;margin-top:14px;font-size:15px;border:1px solid;animation:rise .3s ease}
.fb-ok{background:rgba(63,193,31,.09);border-color:rgba(63,193,31,.4);color:#CFF3BE}
.fb-no{background:rgba(226,86,92,.08);border-color:rgba(226,86,92,.34);color:#FFD6D6}
@keyframes rise{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}

/* ---------- node diagram ---------- */
.nodewrap{width:100%;overflow:visible}
.nodewrap svg{width:100%;height:auto;display:block;overflow:visible}
.nd-link{stroke:rgba(198,128,16,.42);stroke-width:1.6;fill:none}
.nd-node{transition:opacity .3s ease, transform .3s ease}
.nd-off{opacity:.16}
.nd-hit{cursor:pointer}

.nd-num{font-family:var(--mono);font-size:13px;font-weight:700;fill:#000;pointer-events:none}
.nd-you{font-family:var(--disp);font-size:15px;font-weight:700;fill:#140b00;letter-spacing:.1em}
.nd-cap{font-family:var(--disp);font-size:10px;letter-spacing:.11em;fill:var(--muted);text-transform:uppercase}
@keyframes pop{0%{opacity:0;transform:scale(.4)}60%{transform:scale(1.14)}100%{opacity:1;transform:scale(1)}}
.nd-anim{animation:pop .5s cubic-bezier(.3,1.4,.5,1) both;transform-origin:center}
.legend{display:flex;flex-wrap:wrap;gap:9px 16px;margin:18px 0 0}
.lg{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);font-family:var(--disp);letter-spacing:.05em}
.lg i{width:11px;height:11px;border-radius:50%;box-shadow:0 0 8px currentColor}

/* ---------- progress ---------- */
.pbar{height:8px;border-radius:99px;background:rgba(255,161,1,.12);overflow:hidden;border:1px solid var(--line)}
.pbar > i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--orange),var(--green));box-shadow:0 0 12px rgba(63,193,31,.5);transition:width .6s cubic-bezier(.4,0,.2,1)}
.pnum{font-family:var(--mono);font-size:34px;font-weight:700;color:var(--orange);line-height:1;letter-spacing:-.02em}
.strip{position:sticky;top:0;z-index:30;height:3px;background:rgba(255,161,1,.12)}
.strip > i{display:block;height:100%;background:linear-gradient(90deg,var(--orange),var(--green));transition:width .5s ease}

/* ---------- top nav ---------- */
.topbar{position:sticky;top:0;z-index:40;backdrop-filter:blur(18px);background:rgba(0,0,0,.86);border-bottom:1px solid var(--line)}
.topbar-in{max-width:var(--maxw);margin:0 auto;padding:11px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.navlinks{display:none;gap:4px}
@media(min-width:860px){.navlinks{display:flex}}
.navlink{font-family:var(--disp);font-size:12.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding:9px 12px;border-radius:9px}

.navlink.on{color:var(--orange);background:rgba(255,161,1,.13)}

/* ---------- bottom nav (mobile) ---------- */
.botnav{
  position:fixed;left:0;right:0;bottom:0;z-index:45;display:flex;
  background:rgba(0,0,0,.94);backdrop-filter:blur(20px);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
@media(min-width:860px){.botnav{display:none}}
.bn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:var(--navh);padding:9px 3px;color:var(--dim);font-family:var(--disp);font-size:10px;letter-spacing:.07em;text-transform:uppercase}
.bn svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.bn.on{color:var(--orange)}
.bn.on svg{filter:drop-shadow(0 0 6px rgba(255,161,1,.6))}

/* ---------- lesson footer nav ---------- */
.lnav{display:flex;gap:10px;align-items:center;margin-top:30px;max-width:var(--read)}
.lnav .btn{flex:1}

/* ---------- modal ---------- */
.scrim{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.82);backdrop-filter:blur(6px);display:flex;align-items:flex-end;justify-content:center;padding:0;animation:fade .2s ease}
@media(min-width:720px){.scrim{align-items:center;padding:24px}}
@keyframes fade{from{opacity:0}to{opacity:1}}
.sheet{
  width:100%;max-width:560px;max-height:86dvh;overflow-y:auto;
  background:linear-gradient(172deg,#0C130B,#040403);border:1px solid var(--line-hi);
  border-radius:20px 20px 0 0;padding:22px 20px calc(24px + env(safe-area-inset-bottom));
  animation:slide .26s cubic-bezier(.2,.9,.3,1);
}
@media(min-width:720px){.sheet{border-radius:18px;padding-bottom:24px}}
@keyframes slide{from{transform:translateY(30px);opacity:0}to{transform:none;opacity:1}}
.jrow{display:flex;gap:12px;align-items:center;width:100%;text-align:left;padding:12px 13px;border-radius:11px;margin-bottom:6px;border:1px solid transparent}

.jrow.cur{border-color:var(--orange);background:rgba(255,161,1,.1)}
.jn{flex:none;width:32px;height:32px;border-radius:9px;display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:700;background:rgba(255,161,1,.12);color:var(--orange)}
.jn.d{background:rgba(63,193,31,.16);color:var(--green)}
.jt{font-size:14.5px;line-height:1.35}
.jm{font-size:11.5px;color:var(--dim);font-family:var(--disp);letter-spacing:.06em;text-transform:uppercase}

/* ---------- misc ---------- */
.sec{display:flex;align-items:baseline;gap:12px;margin:36px 0 15px;flex-wrap:wrap}
.sec h2{font-size:23px}
.sec .ln{flex:1;height:1px;background:linear-gradient(90deg,var(--line-hi),transparent);min-width:30px}
.rule{height:1px;background:linear-gradient(90deg,var(--line-hi),transparent);margin:32px 0;max-width:var(--read)}
.crumb{font-family:var(--disp);font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--dim);margin-bottom:12px}
.crumb b{color:var(--orange);font-weight:600}
.vid{position:relative;padding-top:56.25%;background:#000;border-radius:11px;border:1px solid rgba(198,128,16,.3);overflow:hidden;margin-bottom:13px}
.vid > div{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:16px;color:var(--dim);font-family:var(--disp);font-size:12px;letter-spacing:.13em;text-transform:uppercase}
.vid iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.foot{text-align:center;padding:44px 20px 30px;color:var(--dim);font-size:12.5px;line-height:1.9;border-top:1px solid rgba(255,161,1,.08);margin-top:44px}
.big{font-family:var(--mono);font-size:clamp(26px,7vw,38px);font-weight:700;line-height:1.15}
.stat{text-align:center;padding:22px 14px}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:70;overflow:hidden}
.confetti i{position:absolute;width:8px;height:14px;border-radius:2px;animation:fall 2.6s linear forwards}
@keyframes fall{to{transform:translateY(105vh) rotate(620deg);opacity:0}}
/* ================= HAMBURGER MENU ================= */
.burger{
  flex:none;width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--orange);background:rgba(255,161,1,.05);
  transition:background .15s,border-color .15s;
}

.burger svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:2.1;stroke-linecap:round}
@media(min-width:1060px){.burger{display:none}}

.mscrim{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.72);backdrop-filter:blur(4px);animation:fade .18s ease}
.mdrawer{
  position:fixed;top:0;right:0;bottom:0;z-index:71;width:min(88vw,340px);
  background:linear-gradient(190deg,#0C130B,#040403);border-left:1px solid var(--line-hi);
  box-shadow:-18px 0 50px rgba(0,0,0,.75);
  display:flex;flex-direction:column;
  animation:slidein .26s cubic-bezier(.2,.9,.3,1);
}
@keyframes slidein{from{transform:translateX(100%)}to{transform:none}}
.mtop{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);flex:none}
.mclose{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;border:1px solid var(--line);color:var(--muted)}

.mclose svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2.3;stroke-linecap:round}
.mbody{flex:1;overflow-y:auto;padding:14px 12px calc(18px + env(safe-area-inset-bottom));-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
.mlabel{font-family:var(--disp);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);padding:0 8px;margin:16px 0 8px}
.mlabel:first-child{margin-top:0}
.mitem{
  display:flex;align-items:center;gap:12px;width:100%;text-align:left;
  padding:12px 12px;border-radius:11px;margin-bottom:3px;font-size:15px;color:var(--text);
  border:1px solid transparent;
}

.mitem.on{background:rgba(255,161,1,.13);border-color:var(--line-hi);color:var(--orange)}
.mitem svg{flex:none;width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;color:var(--muted)}
.mitem.on svg{color:var(--orange)}
.mles{display:flex;align-items:center;gap:11px;width:100%;text-align:left;padding:9px 12px;border-radius:10px;margin-bottom:2px;font-size:13.5px;line-height:1.35;color:var(--muted);border:1px solid transparent}

.mles.on{background:rgba(255,161,1,.12);border-color:var(--line-hi);color:var(--text)}
.mles i{flex:none;width:24px;height:24px;border-radius:7px;display:grid;place-items:center;font-family:var(--mono);font-size:11px;font-weight:700;background:rgba(255,161,1,.11);color:var(--orange);font-style:normal}
.mles i.d{background:rgba(63,193,31,.18);color:var(--green)}
.mles.on i{background:var(--orange);color:#000}
.mfoot{flex:none;padding:12px 14px calc(14px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:rgba(0,0,0,.4)}
.mprog{padding:12px;border-radius:12px;background:rgba(255,161,1,.06);border:1px solid var(--line);margin-bottom:12px}





/* ---------- beacon: slow soft heartbeat on the primary panel border ----------
   Two beats, then a long rest. Border and a faint outer bloom only, so the
   panel contents never shift and nothing competes with the text.          */
@keyframes beacon{
  0%   {border-color:rgba(255,161,1,.16);
        box-shadow:0 0 0 1px rgba(255,161,1,.20), 0 0 26px rgba(255,161,1,.07), 0 20px 52px rgba(0,0,0,.75)}
  7%   {border-color:rgba(255,161,1,.62);
        box-shadow:0 0 0 1px rgba(255,161,1,.50), 0 0 34px rgba(255,161,1,.26), 0 20px 52px rgba(0,0,0,.75)}
  15%  {border-color:rgba(255,161,1,.28);
        box-shadow:0 0 0 1px rgba(255,161,1,.28), 0 0 28px rgba(255,161,1,.12), 0 20px 52px rgba(0,0,0,.75)}
  23%  {border-color:rgba(255,161,1,.52);
        box-shadow:0 0 0 1px rgba(255,161,1,.42), 0 0 32px rgba(255,161,1,.21), 0 20px 52px rgba(0,0,0,.75)}
  40%  {border-color:rgba(255,161,1,.16);
        box-shadow:0 0 0 1px rgba(255,161,1,.20), 0 0 26px rgba(255,161,1,.07), 0 20px 52px rgba(0,0,0,.75)}
  100% {border-color:rgba(255,161,1,.16);
        box-shadow:0 0 0 1px rgba(255,161,1,.20), 0 0 26px rgba(255,161,1,.07), 0 20px 52px rgba(0,0,0,.75)}
}
.beacon{animation:beacon 4.6s cubic-bezier(.4,0,.3,1) infinite;will-change:border-color,box-shadow}
@media (prefers-reduced-motion:reduce){
  .beacon{animation:none;border-color:rgba(255,161,1,.4);
    box-shadow:0 0 0 1px rgba(255,161,1,.3), 0 0 26px rgba(255,161,1,.12), 0 20px 52px rgba(0,0,0,.75)}
}

/* ---------- locked lessons ---------- */
.card.locked{background:rgba(255,255,255,.02);border-color:rgba(158,154,140,.18);opacity:.62}
.card.locked p{color:var(--dim)}
.lockbadge{flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(158,154,140,.09);border:1px solid rgba(158,154,140,.22);color:var(--dim)}
.rl-lock,.mles-lock{color:var(--dim);opacity:.55;cursor:not-allowed}
.rl-lock i,.mles-lock i{background:rgba(158,154,140,.1)!important;color:var(--dim)!important;display:grid;place-items:center}
.lockmsg{display:flex;align-items:center;gap:9px;justify-content:center;font-family:var(--disp);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);background:rgba(198,128,16,.09);border:1px solid rgba(198,128,16,.3);border-radius:11px;padding:11px 14px;margin-bottom:18px}

/* ---------- certificate ---------- */
.certwrap{max-width:760px;margin:0 auto 26px}
.certcanvas{background:#000;border-radius:12px;padding:8px;border:1px solid var(--line);box-shadow:0 18px 46px rgba(0,0,0,.7), 0 0 0 1px rgba(198,128,16,.25)}
.certhint{display:none;text-align:center;color:var(--gold);font-size:13px;line-height:1.6;margin-top:12px;padding:11px 14px;border:1px solid rgba(198,128,16,.3);background:rgba(198,128,16,.07);border-radius:10px}
.certload{aspect-ratio:1600/1130;display:grid;place-items:center;color:var(--dim);font-family:var(--disp);font-size:12px;letter-spacing:.16em;text-transform:uppercase}
/* ---------- side-by-side contrast ---------- */
.vs{display:grid;gap:12px;margin:0 0 18px}
@media(min-width:700px){.vs{grid-template-columns:1fr 1fr;gap:14px}}
.vs-col{border-radius:13px;padding:16px 17px;border:1px solid}
.vs-h{font-family:var(--disp);font-size:13px;line-height:1.35;letter-spacing:.04em;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.08)}
.vs-col ul{list-style:none;margin:0;padding:0}
.vs-col li{position:relative;padding-left:22px;margin-bottom:10px;font-size:14.5px;line-height:1.5;color:#DAD5C9}
.vs-col li:last-child{margin-bottom:0}
.vs-col li::before{position:absolute;left:0;top:0;font-family:var(--mono);font-weight:700;font-size:14px}
.vs-bad{background:rgba(226,86,92,.05);border-color:rgba(226,86,92,.26)}
.vs-bad .vs-h{color:#E2565C}
.vs-bad li::before{content:"\2715";color:#E2565C}
.vs-good{background:rgba(63,193,31,.05);border-color:rgba(63,193,31,.3)}
.vs-good .vs-h{color:var(--green)}
.vs-good li::before{content:"\2713";color:var(--green)}


/* ---------- instant taps ----------
   Removes the browser's wait-for-double-tap-to-zoom delay on every
   interactive element, so the first tap registers immediately.      */
a,button,.soc,.btn,.card,.opt,.navlink,.bn,.rl,.mles,.mitem,.jrow,.lback,.burger,.mclose,.pweye,summary{
  touch-action:manipulation;
  -webkit-tap-highlight-color:rgba(255,161,1,.18);
}
.soc{min-width:46px;min-height:46px}
.socrow-lg .soc{min-width:52px;min-height:52px}
/* ---------- author signature ---------- */
.sig{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;
  margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,161,1,.1);
  font-family:var(--disp);font-size:12.5px;letter-spacing:.06em;color:var(--dim);
}
.sig-heart{font-size:13px;filter:drop-shadow(0 0 6px rgba(226,86,92,.55));animation:sigbeat 2.8s ease-in-out infinite}
@keyframes sigbeat{0%,72%,100%{transform:scale(1)}78%{transform:scale(1.18)}84%{transform:scale(1.04)}90%{transform:scale(1.12)}}
@media (prefers-reduced-motion:reduce){.sig-heart{animation:none}}
.sig-name{color:var(--orange);font-weight:700;letter-spacing:.12em}
.sig-bar{color:rgba(255,161,1,.3)}
.sig-role{color:var(--green);font-weight:600}
/* ---------- social icons ---------- */
.socrow{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin:0 0 16px;position:relative;z-index:2}
.soc{
  position:relative;z-index:2;
  width:46px;height:46px;border-radius:11px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);background:rgba(255,161,1,.04);
  transition:color .16s,border-color .16s,background .16s,transform .16s;
  cursor:pointer;
}
/* the icon must never intercept the tap meant for the link */
.soc svg,.soc svg *{pointer-events:none}
/* an invisible pad guarantees a generous hit area on every device */
.soc::after{content:"";position:absolute;inset:-3px;border-radius:14px}

.soc svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.socrow-lg .soc{width:52px;height:52px;border-radius:13px}
.socrow-lg .soc svg{width:24px;height:24px}
.soclabel{font-family:var(--disp);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);text-align:center;margin-bottom:10px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ================= NAVIGATION V3 ================= */
/* sticky lesson header: you always know where you are */
.lhead{
  position:sticky;top:0;z-index:38;background:rgba(0,0,0,.93);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);margin:0 -20px 20px;padding:10px 20px 0;
}
.lhead-in{display:flex;align-items:center;gap:12px;max-width:var(--maxw);margin:0 auto}
.lback{flex:none;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;border:1px solid var(--line);color:var(--orange)}

.lback svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.lhead-t{flex:1;min-width:0}
.lhead-t .a{font-family:var(--disp);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--orange);line-height:1.3}
.lhead-t .b{font-size:12.5px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lhead .pbar{height:4px;margin:9px 0 0;border-radius:0;border:none;background:rgba(255,161,1,.13)}

/* sticky bottom action bar on lessons */
.lbar{
  position:fixed;left:0;right:0;bottom:var(--navh);z-index:44;
  display:flex;gap:8px;align-items:center;padding:10px 14px calc(10px);
  background:rgba(0,0,0,.95);backdrop-filter:blur(20px);border-top:1px solid var(--line);
}
@media(min-width:860px){.lbar{bottom:0;padding-bottom:14px;justify-content:center}}
.lbar .btn{min-height:48px;padding:12px 16px;font-size:13px;flex:1}
@media(min-width:860px){.lbar .btn{flex:0 1 auto;min-width:150px}}
.lbar .btn-icon{flex:none;width:52px;min-width:0;padding:0}
.lbar svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.haslbar{padding-bottom:calc(var(--navh) + 78px + env(safe-area-inset-bottom))}
@media(min-width:860px){.haslbar{padding-bottom:110px}}

/* desktop lesson rail */
.railwrap{display:block}
@media(min-width:1060px){
  .railwrap{display:grid;grid-template-columns:250px 1fr;gap:34px;align-items:start}
  .rail{position:sticky;top:88px;max-height:calc(100dvh - 120px);overflow-y:auto;padding-right:4px}
}
.rail{display:none}
@media(min-width:1060px){.rail{display:block}}
.rail-mod{font-family:var(--disp);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin:16px 0 7px;padding-left:2px}
.rail-mod:first-child{margin-top:0}
.rl{display:flex;gap:10px;align-items:center;width:100%;text-align:left;padding:8px 10px;border-radius:9px;margin-bottom:3px;font-size:13.5px;line-height:1.35;color:var(--muted);border:1px solid transparent}

.rl.cur{background:rgba(255,161,1,.13);border-color:var(--line-hi);color:var(--text)}
.rl i{flex:none;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;font-family:var(--mono);font-size:11px;font-weight:700;background:rgba(255,161,1,.12);color:var(--orange);font-style:normal}
.rl i.d{background:rgba(63,193,31,.18);color:var(--green)}
.rl.cur i{background:var(--orange);color:#000}


/* quiz v3 */
.cheer{font-weight:700;color:var(--green);font-family:var(--disp);letter-spacing:.03em}
.tally{margin-top:11px;padding:11px 14px;border-radius:10px;background:rgba(63,193,31,.08);border:1px solid rgba(63,193,31,.28);font-family:var(--mono);font-size:12.5px;color:var(--lime)}
.qhead .qn{transition:background .2s}
.qhead{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.qhead .qn{flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--green);color:#04180c;font-family:var(--disp);font-weight:700;font-size:16px}
.qhead .ql{font-family:var(--disp);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--green)}
.qdone{display:flex;align-items:center;gap:9px;font-family:var(--disp);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--green);margin-bottom:12px}
.nextbig{margin-top:16px}
.tryagain{background:rgba(226,86,92,.08);border:1px solid rgba(226,86,92,.34);color:#FFD6D6;border-radius:12px;padding:14px 16px;margin-top:12px;font-size:15px;animation:rise .3s ease}

/* ---------- hover states, desktop pointers only ----------
   Touch devices apply :hover on first tap and only activate on the
   second. Guarding these means one tap always works.            */
@media (hover:hover) and (pointer:fine){
  a:hover{text-decoration:underline}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,161,1,.46)}
  .btn-go:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(63,193,31,.44)}
  .btn-ghost:hover{background:rgba(255,161,1,.14)}
  .btn-quiet:hover{color:var(--text);border-color:var(--muted)}
  .pweye:hover{color:var(--orange);background:rgba(255,161,1,.08)}
  button.card:hover{transform:translateY(-3px);border-color:var(--line-hi);box-shadow:0 14px 34px rgba(0,0,0,.6),0 0 20px rgba(255,161,1,.07)}
  .opt:hover:not(:disabled){border-color:var(--line-hi);background:rgba(255,161,1,.06)}
  .nd-hit:hover .nd-ring{stroke-width:3.4}
  .navlink:hover{color:var(--text);background:rgba(255,161,1,.08)}
  .jrow:hover{background:rgba(255,161,1,.08);border-color:var(--line)}
  .burger:hover{background:rgba(255,161,1,.13);border-color:var(--line-hi)}
  .mclose:hover{color:var(--orange);border-color:var(--line-hi)}
  .mitem:hover{background:rgba(255,161,1,.08)}
  .mles:hover{background:rgba(255,161,1,.07);color:var(--text)}
  .soc:hover{color:var(--orange);border-color:var(--line-hi);background:rgba(255,161,1,.13);transform:translateY(-2px);text-decoration:none}
  .lback:hover{background:rgba(255,161,1,.1)}
  .rl:hover{background:rgba(255,161,1,.07);color:var(--text)}
}


/* the connecting lines fade in just ahead of each node */
@keyframes drawline{from{opacity:0}to{opacity:1}}
.nd-draw{animation:drawline .45s ease-out both}
@media (prefers-reduced-motion:reduce){
  .nd-anim,.nd-draw{animation:none}
}
/* ================= OPEN SITE ================= */
/* ---------- video card and player ---------- */
.vidframe{box-shadow:0 0 34px rgba(198,128,16,.20), 0 20px 54px rgba(0,0,0,.8)}
.vidcard{
  position:relative;display:block;width:100%;margin-top:10px;padding:0;border:none;
  border-radius:12px;overflow:hidden;cursor:pointer;background:#000;
  aspect-ratio:16/9;
  box-shadow:0 0 0 1px rgba(198,128,16,.45), 0 10px 30px rgba(0,0,0,.65);
  transition:box-shadow .2s ease, transform .2s ease;
}
.vidthumb{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;opacity:.72}
.vidshade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.25),rgba(0,0,0,.78))}
.vidplay{
  position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);
  width:72px;height:72px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,#FFB730,var(--orange));color:#140b00;
  box-shadow:0 10px 30px rgba(255,161,1,.5);
  transition:transform .2s ease, box-shadow .2s ease;
}
.vidplay svg{width:34px;height:34px;fill:currentColor;stroke:none;margin-left:3px}
.vidmeta{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;text-align:left}
.vidtitle{display:block;font-family:var(--disp);font-size:16px;color:#fff;letter-spacing:.02em;line-height:1.25}
.vidblurb{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-top:3px}
@media (hover:hover) and (pointer:fine){
  .vidcard:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,161,1,.7), 0 16px 40px rgba(0,0,0,.7)}
  .vidcard:hover .vidplay{transform:translate(-50%,-50%) scale(1.08);box-shadow:0 14px 38px rgba(255,161,1,.65)}
}
@media(min-width:700px){.vidplay{width:84px;height:84px}.vidplay svg{width:40px;height:40px}}

.vidmodal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;padding:18px}
.vidmodal[hidden]{display:none}
.vidmodal-bg{position:absolute;inset:0;background:rgba(0,0,0,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);animation:fade .2s ease}
.vidmodal-box{position:relative;width:100%;max-width:min(1100px,94vw);animation:vidin .28s cubic-bezier(.2,.9,.3,1)}
@keyframes vidin{from{opacity:0;transform:scale(.96) translateY(10px)}to{opacity:1;transform:none}}
.vidmodal-frame{position:relative;aspect-ratio:16/9;width:100%;border-radius:14px;overflow:hidden;background:#000;box-shadow:0 0 0 1px rgba(198,128,16,.5), 0 30px 80px rgba(0,0,0,.9)}
.vidmodal-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vidclose{
  position:absolute;top:-52px;right:0;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;border:1px solid var(--line-hi);color:var(--orange);
  background:rgba(0,0,0,.6);cursor:pointer;
}
.vidclose svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2.3;stroke-linecap:round}
@media (hover:hover) and (pointer:fine){.vidclose:hover{background:rgba(255,161,1,.16)}}
@media(max-width:560px){.vidclose{top:-48px}}
@media (prefers-reduced-motion:reduce){.vidmodal-bg,.vidmodal-box{animation:none}}
/* a Short is vertical, so the frame follows it rather than letterboxing */
.vidmodal.vertical .vidmodal-box{max-width:min(460px,92vw)}
.vidmodal.vertical .vidmodal-frame{aspect-ratio:9/16}
.vidcard-btn{gap:8px}



/* ---------- source document panel ---------- */
.srcbox{max-width:var(--read);margin:30px 0 0;padding:20px;border-radius:15px;border:1px solid rgba(198,128,16,.4);background:linear-gradient(160deg,rgba(198,128,16,.09),rgba(198,128,16,.03))}
.srcbox-in{display:flex;gap:14px;align-items:flex-start}
.srcbox-ico{flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(198,128,16,.16);color:var(--gold);border:1px solid rgba(198,128,16,.35)}
.srcbox-ico svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.srcbox-h{font-family:var(--disp);font-size:15px;color:var(--gold);letter-spacing:.04em;margin-bottom:6px}
.srcbox-txt p{margin:0;color:#DAD5C9;font-size:14.5px;line-height:1.6}

/* ---------- the two-column reading path ----------
   Eight pages read as two groups of four rather than one long list,
   which is far less intimidating than a single stack.            */
.pathwrap{display:grid;gap:26px;max-width:var(--maxw);margin:0 0 8px}
@media(min-width:780px){.pathwrap{grid-template-columns:1fr 1fr;gap:30px}}
.pathcol{position:relative}
.pathhead{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;padding-bottom:13px;border-bottom:1px solid var(--line)}
.pathnum{
  flex:none;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-family:var(--disp);font-weight:700;font-size:14px;color:#140b00;
  background:linear-gradient(135deg,#FFB730,var(--orange));
}
.pathlabel{font-family:var(--disp);font-size:15px;color:var(--text);letter-spacing:.03em;line-height:1.25}
.pathsub{font-size:13px;color:var(--dim);margin-top:3px;line-height:1.45}
.pathstep{
  display:flex;align-items:center;gap:12px;padding:13px 14px;margin-bottom:7px;
  border:1px solid var(--line);border-radius:12px;text-decoration:none;
  background:linear-gradient(170deg,rgba(12,19,11,.7),rgba(5,5,4,.85));
  transition:transform .16s,border-color .16s,background .16s;
}
.pathstep i{
  flex:none;width:28px;height:28px;border-radius:8px;display:grid;place-items:center;font-style:normal;
  font-family:var(--mono);font-size:12px;font-weight:700;background:rgba(255,161,1,.12);color:var(--orange);
}
.pathstep span{flex:1;color:var(--text);font-size:14.5px;line-height:1.35}
.pathstep em{flex:none;font-style:normal;color:var(--dim);font-size:15px;transition:transform .16s,color .16s}
@media (hover:hover) and (pointer:fine){
  .pathstep:hover{transform:translateY(-2px);border-color:var(--line-hi);background:rgba(255,161,1,.06);text-decoration:none}
  .pathstep:hover em{color:var(--orange);transform:translateX(3px)}
  .pathstep:hover i{background:var(--orange);color:#140b00}
}

/* ---------- back to top ---------- */
.totop{
  position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom));z-index:50;
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;cursor:pointer;
  background:linear-gradient(135deg,#FFB730,var(--orange));color:#140b00;border:none;
  box-shadow:0 8px 26px rgba(255,161,1,.42);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.totop.show{opacity:1;transform:none;pointer-events:auto}
.totop svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
@media (hover:hover) and (pointer:fine){.totop:hover{transform:translateY(-3px)}}
@media (prefers-reduced-motion:reduce){.totop{transition:none}}

.topnav{position:sticky;top:0;z-index:40;background:rgba(0,0,0,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.topnav-in{max-width:var(--maxw);margin:0 auto;padding:10px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topnav-links{display:none;gap:2px}
@media(min-width:820px){.topnav-links{display:flex}}
.topnav a.nl{font-family:var(--disp);font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding:9px 11px;border-radius:9px;text-decoration:none}
.topnav a.nl:hover{color:var(--orange);background:rgba(255,161,1,.08);text-decoration:none}
.topnav a.nl.on{color:var(--orange);background:rgba(255,161,1,.13)}
.navtoggle{display:grid;place-items:center;width:44px;height:44px;border-radius:11px;border:1px solid var(--line);color:var(--orange);background:rgba(255,161,1,.05);cursor:pointer}
@media(min-width:820px){.navtoggle{display:none}}
.navtoggle svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:2.1;stroke-linecap:round}
.drawer{display:none;border-top:1px solid var(--line);background:rgba(4,4,3,.99);padding:10px 16px 16px}
.drawer.open{display:block}
@media(min-width:820px){.drawer,.drawer.open{display:none}}
.drawer a{display:block;padding:12px 12px;border-radius:10px;color:var(--text);text-decoration:none;font-size:15px}
.drawer a:hover{background:rgba(255,161,1,.08);text-decoration:none}
.drawer .dl{font-family:var(--disp);font-size:10.5px;letter-spacing:.17em;text-transform:uppercase;color:var(--gold);padding:14px 12px 6px}

.hero{text-align:center;max-width:760px;margin:0 auto}
.crumbs{font-family:var(--disp);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);margin-bottom:12px}
.crumbs a{color:var(--dim);text-decoration:none}
.crumbs a:hover{color:var(--orange)}
.crumbs b{color:var(--orange);font-weight:600}

.tgrid{display:grid;gap:12px}
@media(min-width:760px){.tgrid.two{grid-template-columns:1fr 1fr}}
.tcard{display:flex;gap:14px;align-items:center;padding:15px 16px;border:1px solid var(--line);border-radius:13px;background:linear-gradient(170deg,rgba(12,19,11,.75),rgba(5,5,4,.9));text-decoration:none;transition:transform .16s,border-color .16s}
.tcard:hover{transform:translateY(-2px);border-color:var(--line-hi);text-decoration:none}
.tcard i{flex:none;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:700;background:rgba(255,161,1,.12);color:var(--orange);font-style:normal}
.tcard span{color:var(--text);font-size:15px;line-height:1.35}
.tcard small{display:block;color:var(--muted);font-size:13px;margin-top:3px;line-height:1.45}

.pn{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px;max-width:var(--read)}
.pn a{flex:1;min-width:220px;padding:15px 16px;border:1px solid var(--line);border-radius:13px;background:rgba(12,19,11,.6);text-decoration:none}
.pn a:hover{border-color:var(--line-hi);text-decoration:none}
.pn .d{font-family:var(--disp);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:5px}
.pn .t{color:var(--text);font-size:15px;line-height:1.35}

/* page quiz */
.pq{background:linear-gradient(165deg,rgba(12,19,11,.9),#030302);border:1px solid rgba(63,193,31,.28);border-radius:16px;padding:22px;margin:34px 0 0;max-width:var(--read)}
.pq .opt{cursor:pointer}
.pq .opt.locked{cursor:default}

/* footer custody block, repeated site wide */
.cb{border-top:1px solid rgba(255,161,1,.12);margin-top:48px;padding-top:34px}
.cb-in{max-width:760px;margin:0 auto}

.sitefoot{text-align:center;padding:38px 20px 34px;color:var(--dim);font-size:12.5px;line-height:1.9;border-top:1px solid rgba(255,161,1,.08);margin-top:40px}
.sitefoot a{color:var(--gold)}
.ctabar{max-width:var(--read);margin:34px auto 0;padding:20px;border-radius:15px;border:1px solid var(--line-hi);background:linear-gradient(160deg,rgba(255,161,1,.09),rgba(63,193,31,.04));text-align:center}