/* ============================================================
   The Stud Works — Academy components
   Builds on /assets/site.css tokens (navy + gold). Loaded by the
   Academy hub + lesson pages alongside site.css and academy.js.
   Interactive, discovery-first learning UI: calculators, charts,
   knowledge checks, gamification.
   ============================================================ */
:root{
  --good:#5fd0a3;--good-bright:#7ee6bd;
  --warn:#e7c873;--danger:#ff6b62;
  --grid:rgba(255,255,255,.07);
  --panel:rgba(255,255,255,.045);
  --panel2:rgba(255,255,255,.07);
}

/* ---------- in-lesson sticky sub-bar + progress ---------- */
.subbar{position:sticky;top:58px;z-index:90;background:rgba(8,16,32,.82);
  backdrop-filter:saturate(160%) blur(16px);-webkit-backdrop-filter:saturate(160%) blur(16px);
  border-bottom:1px solid var(--line)}
.subbar-in{max-width:var(--maxw);margin:0 auto;padding:9px 24px;display:flex;align-items:center;gap:16px}
.subbar a.back{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--body);text-decoration:none;white-space:nowrap;transition:color .2s}
.subbar a.back:hover{color:#fff}
.subbar .lname{font-size:13px;color:var(--mute);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.subbar .lprog{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;width:120px}
.bar > i{display:block;height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--gold),var(--gold-bright));transition:width .6s cubic-bezier(.2,.8,.2,1)}
.lprog .pct{font-size:12px;font-weight:700;color:var(--gold-bright);font-variant-numeric:tabular-nums;min-width:34px;text-align:right}
@media(max-width:560px){.subbar .lname{display:none}.bar{width:84px}}

/* ---------- lesson hero ---------- */
.lesson-hero{padding:54px 0 26px;text-align:center;
  background:radial-gradient(120% 80% at 50% -20%,#16305a 0%,#0a1729 62%)}
.lesson-hero .eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gold-bright)}
.lesson-hero h1{font-size:clamp(30px,5.4vw,50px);font-weight:800;line-height:1.05;letter-spacing:-0.04em;margin:14px auto 0;max-width:18ch;color:#fff}
.lesson-hero .sub{margin:16px auto 0;font-size:clamp(16px,2vw,19px);color:#d7e2f2;max-width:46ch;line-height:1.5}

/* ---------- story hook (two-parcel reveal) ---------- */
.story{max-width:880px;margin:34px auto 0;padding:0 24px}
.story-split{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:680px){.story-split{grid-template-columns:1fr 1fr}}
.parcel{position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);
  padding:22px;min-height:200px;display:flex;flex-direction:column;justify-content:flex-end}
.parcel .plabel{position:absolute;top:16px;left:18px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.parcel .pval{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-0.03em;color:#fff;font-variant-numeric:tabular-nums}
.parcel .pnote{font-size:13px;color:var(--body);margin-top:4px;min-height:1.2em}
.parcel.b{border-color:rgba(231,200,115,.4);background:linear-gradient(180deg,rgba(231,200,115,.10),rgba(255,255,255,.02))}
.parcel svg.lot{position:absolute;inset:0;width:100%;height:100%;opacity:.5}
.story .ask{text-align:center;margin:24px auto 0;font-size:clamp(18px,2.4vw,23px);font-weight:700;color:#fff;max-width:30ch;line-height:1.3}
.guess{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:18px auto 0;max-width:620px}
.guess button{font:inherit;font-size:14px;font-weight:600;color:var(--body);background:var(--panel);border:1px solid var(--line2);
  border-radius:999px;padding:10px 18px;cursor:pointer;transition:.18s}
.guess button:hover{border-color:rgba(231,200,115,.6);color:#fff;transform:translateY(-1px)}
.guess button.picked{background:rgba(231,200,115,.14);border-color:var(--gold);color:var(--gold-bright)}
.guess button.right{background:rgba(95,208,163,.16);border-color:var(--good);color:var(--good-bright)}
.reveal-msg{max-width:620px;margin:18px auto 0;text-align:center;font-size:15.5px;line-height:1.6;color:var(--body);
  opacity:0;max-height:0;overflow:hidden;transition:opacity .5s,max-height .6s}
.reveal-msg.show{opacity:1;max-height:300px}
.reveal-msg b{color:var(--gold-bright)}

/* ---------- calculator card ---------- */
.calc{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--card);padding:26px 24px;margin-top:26px}
.calc-head .ce{font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--gold)}
.calc-head h3{font-size:clamp(20px,2.6vw,26px);font-weight:800;letter-spacing:-0.03em;color:#fff;margin:6px 0 4px;line-height:1.15}
.calc-head .cs{font-size:14.5px;color:var(--body);line-height:1.55;max-width:60ch}
.calc-grid{display:grid;gap:22px;margin-top:22px;grid-template-columns:1fr}
@media(min-width:760px){.calc-grid{grid-template-columns:0.92fr 1.08fr;align-items:start}}

/* controls */
.controls{display:flex;flex-direction:column;gap:18px}
.control label{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:9px}
.control label .v{font-size:14px;font-weight:700;color:var(--gold-bright);font-variant-numeric:tabular-nums}
.range{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:999px;outline:none;
  background:linear-gradient(90deg,var(--gold) 0%,var(--gold) var(--fill,50%),rgba(255,255,255,.12) var(--fill,50%));cursor:pointer}
.range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:22px;height:22px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,#fff,#e7c873 60%,#cfa247);border:0;cursor:grab;
  box-shadow:0 2px 8px rgba(0,0,0,.5),0 0 0 4px rgba(231,200,115,.16);transition:transform .12s}
.range::-webkit-slider-thumb:active{cursor:grabbing;transform:scale(1.12)}
.range::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fff,#e7c873 60%,#cfa247);
  border:0;cursor:grab;box-shadow:0 2px 8px rgba(0,0,0,.5),0 0 0 4px rgba(231,200,115,.16)}
.seg{display:flex;flex-wrap:wrap;gap:6px;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:5px}
.seg button{flex:1 1 auto;font:inherit;font-size:13px;font-weight:600;color:var(--body);background:transparent;border:0;border-radius:8px;
  padding:9px 10px;cursor:pointer;transition:.16s;white-space:nowrap}
.seg button[aria-pressed="true"]{background:linear-gradient(120deg,#f6da92,#d4af5a);color:#3a2c08;box-shadow:0 4px 12px rgba(212,175,90,.3)}

/* outputs */
.outs{display:flex;flex-direction:column;gap:14px}
.readwrap{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.readout{border:1px solid var(--line);border-radius:14px;padding:14px 16px;background:var(--panel)}
.readout.hero-out{grid-column:1/-1;background:linear-gradient(180deg,rgba(231,200,115,.12),rgba(255,255,255,.02));border-color:rgba(231,200,115,.34)}
.readout .rk{font-size:11.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--mute)}
.readout .rv{font-size:clamp(20px,3vw,30px);font-weight:800;letter-spacing:-0.03em;color:#fff;font-variant-numeric:tabular-nums;margin-top:3px;line-height:1.05}
.readout.hero-out .rv{color:var(--gold-bright)}
.readout .rv.pos{color:var(--good-bright)}.readout .rv.neg{color:var(--danger)}
.delta{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:700;margin-top:6px;
  padding:2px 8px;border-radius:999px;background:rgba(95,208,163,.14);color:var(--good-bright)}
.delta.neg{background:rgba(255,107,98,.14);color:var(--danger)}

/* chart frame */
.chart{margin-top:6px;border:1px solid var(--line);border-radius:14px;background:var(--base3);padding:16px 14px 10px;position:relative}
.chart svg{display:block;width:100%;height:auto;overflow:visible}
.chart .axis{stroke:var(--grid);stroke-width:1}
.chart .albl{fill:var(--mute);font-size:11px;font-weight:600}
.chart .vlbl{fill:#fff;font-size:11px;font-weight:700}
.barrect{transition:height .55s cubic-bezier(.2,.85,.25,1),y .55s cubic-bezier(.2,.85,.25,1),fill .3s}
.segrect{transition:height .55s cubic-bezier(.2,.85,.25,1),y .55s cubic-bezier(.2,.85,.25,1)}
.linepath{transition:stroke .3s}
.pie-seg{transition:stroke-dasharray .6s cubic-bezier(.2,.85,.25,1),stroke-dashoffset .6s cubic-bezier(.2,.85,.25,1),stroke .3s}
.needle{transition:transform .7s cubic-bezier(.34,1.4,.5,1);transform-origin:center bottom}
.rank-row{transition:transform .55s cubic-bezier(.2,.85,.25,1)}
.rank-bar{transition:width .55s cubic-bezier(.2,.85,.25,1),fill .3s}

/* "why this happens" disclosure */
.why{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}
.why > button{display:flex;align-items:center;gap:9px;width:100%;background:none;border:0;cursor:pointer;
  font:inherit;font-size:14px;font-weight:700;color:var(--gold-bright);padding:4px 0;text-align:left}
.why > button .chev{transition:transform .25s;flex:0 0 auto}
.why > button[aria-expanded="true"] .chev{transform:rotate(90deg)}
.why-body{max-height:0;overflow:hidden;transition:max-height .4s ease;font-size:14.5px;line-height:1.62;color:var(--body)}
.why-body.open{max-height:520px}
.why-body p{margin:12px 0 0}.why-body b{color:#fff}

/* ---------- knowledge check / decision challenge ---------- */
.kcheck{border:1px solid var(--line2);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));padding:26px 24px;margin-top:30px}
.kcheck .ke{font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--gold)}
.kcheck h3{font-size:clamp(19px,2.4vw,24px);font-weight:800;color:#fff;letter-spacing:-0.02em;margin:6px 0 6px;line-height:1.2}
.kcheck .scen{font-size:15px;color:var(--body);line-height:1.6;margin-bottom:18px}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{display:flex;gap:13px;align-items:flex-start;text-align:left;width:100%;font:inherit;cursor:pointer;
  border:1px solid var(--line2);border-radius:14px;padding:15px 16px;background:var(--panel);color:var(--ink);transition:.18s}
.opt:hover:not(:disabled){border-color:rgba(231,200,115,.6);transform:translateY(-1px);background:var(--panel2)}
.opt .dot{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:2px solid var(--mute);margin-top:1px;
  display:grid;place-items:center;transition:.18s;font-size:13px;font-weight:800}
.opt .otext{font-size:14.5px;line-height:1.45}.opt .otext b{color:#fff}
.opt.correct{border-color:var(--good);background:rgba(95,208,163,.12)}
.opt.correct .dot{border-color:var(--good);background:var(--good);color:#06231a}
.opt.wrong{border-color:var(--danger);background:rgba(255,107,98,.10)}
.opt.wrong .dot{border-color:var(--danger);color:var(--danger)}
.opt:disabled{cursor:default}
.kfeedback{margin-top:16px;font-size:14.5px;line-height:1.6;color:var(--body);
  border-left:3px solid var(--gold);padding:4px 0 4px 14px;opacity:0;max-height:0;overflow:hidden;transition:opacity .4s,max-height .5s}
.kfeedback.show{opacity:1;max-height:320px}
.kfeedback b{color:#fff}

/* ---------- completion reward ---------- */
.reward{border:1px solid rgba(231,200,115,.4);border-radius:var(--radius-lg);text-align:center;
  background:radial-gradient(120% 130% at 50% 0%,rgba(231,200,115,.16),rgba(255,255,255,.02));padding:38px 26px;margin-top:30px;
  opacity:0;transform:translateY(14px);transition:opacity .5s,transform .5s}
.reward.show{opacity:1;transform:none}
.reward .medal{width:74px;height:74px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 38% 32%,#fbe9b0,#d4af5a 62%,#a6781f);box-shadow:0 14px 34px rgba(212,175,90,.45)}
.reward .medal svg{width:38px;height:38px;color:#3a2c08}
.reward h3{font-size:clamp(21px,3vw,28px);font-weight:800;color:#fff;letter-spacing:-0.02em}
.reward p{font-size:15px;color:var(--body);max-width:46ch;margin:8px auto 0;line-height:1.55}
.reward .xpgain{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:15px;font-weight:800;color:var(--gold-bright);
  background:rgba(231,200,115,.12);border:1px solid rgba(231,200,115,.3);border-radius:999px;padding:8px 18px;font-variant-numeric:tabular-nums}
.reward .ractions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:22px}

/* ---------- reward toast ---------- */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,140%);z-index:400;
  display:flex;align-items:center;gap:12px;background:linear-gradient(180deg,#10243f,#0c1c33);
  border:1px solid rgba(231,200,115,.4);border-radius:16px;padding:13px 18px;box-shadow:0 20px 50px rgba(0,0,0,.5);
  transition:transform .5s cubic-bezier(.2,.9,.25,1);max-width:90vw}
.toast.show{transform:translate(-50%,0)}
.toast .tic{width:34px;height:34px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  background:radial-gradient(circle at 38% 32%,#fbe9b0,#d4af5a 62%,#a6781f);color:#3a2c08}
.toast .tt{font-size:14px;font-weight:800;color:#fff}.toast .td{font-size:12.5px;color:var(--body)}

/* ---------- HUB ---------- */
.track-rail{display:flex;flex-wrap:wrap;align-items:center;gap:18px 26px;margin-top:26px;
  border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--card);padding:22px 24px}
.track-rail .big{display:flex;align-items:baseline;gap:9px}
.track-rail .big .n{font-size:30px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.track-rail .big .k{font-size:13px;color:var(--mute);font-weight:600}
.track-rail .sep{width:1px;height:34px;background:var(--line);flex:0 0 auto}
.railbar{flex:1 1 220px;min-width:180px}
.railbar .bar{width:100%;height:9px}
.railbar .meta{display:flex;justify-content:space-between;font-size:12px;color:var(--mute);margin-top:7px;font-weight:600}
.streak{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:800;color:var(--gold-bright)}

.badgewall{display:grid;gap:14px;grid-template-columns:repeat(2,1fr);margin-top:18px}
@media(min-width:680px){.badgewall{grid-template-columns:repeat(4,1fr)}}
.badge{border:1px solid var(--line);border-radius:16px;background:var(--panel);padding:18px 14px;text-align:center;transition:.25s}
.badge.earned{border-color:rgba(231,200,115,.45);background:linear-gradient(180deg,rgba(231,200,115,.12),rgba(255,255,255,.02))}
.badge .bic{width:46px;height:46px;margin:0 auto 10px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.05);color:var(--mute);transition:.25s}
.badge.earned .bic{background:radial-gradient(circle at 38% 32%,#fbe9b0,#d4af5a 62%,#a6781f);color:#3a2c08;box-shadow:0 8px 22px rgba(212,175,90,.4)}
.badge .bt{font-size:13px;font-weight:700;color:var(--ink)}.badge.earned .bt{color:#fff}
.badge .bd{font-size:11.5px;color:var(--mute);margin-top:3px;line-height:1.35}
.badge.locked{opacity:.62}

.lessoncard{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;background:var(--card);transition:transform .22s,box-shadow .35s,border-color .35s;text-decoration:none;color:inherit}
.lessoncard:not(.locked):hover{transform:translateY(-5px);box-shadow:0 26px 60px rgba(0,0,0,.42);border-color:rgba(207,162,71,.5)}
.lessoncard .lthumb{aspect-ratio:16/8;background:#0b1a31;position:relative;border-bottom:1px solid var(--line)}
.lessoncard .lthumb svg{position:absolute;inset:0;width:100%;height:100%}
.lessoncard .num{position:absolute;top:12px;left:14px;font-size:12px;font-weight:800;letter-spacing:.05em;color:var(--gold-bright);
  background:rgba(8,16,32,.7);border:1px solid var(--line2);border-radius:999px;padding:4px 11px}
.lessoncard .lb{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.lessoncard h3{font-size:19px;font-weight:800;color:#fff;letter-spacing:-0.02em;line-height:1.2}
.lessoncard p{font-size:14px;color:var(--body);line-height:1.5;margin-top:7px;flex:1}
.lessoncard .lfoot{display:flex;align-items:center;justify-content:space-between;margin-top:16px}
.statepill{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:700;padding:8px 15px;border-radius:999px}
.statepill.start{background:linear-gradient(120deg,#f6da92,#d4af5a);color:#3a2c08}
.statepill.cont{background:rgba(231,200,115,.14);color:var(--gold-bright);border:1px solid rgba(231,200,115,.34)}
.statepill.done{background:rgba(95,208,163,.14);color:var(--good-bright);border:1px solid rgba(95,208,163,.3)}
.statepill.lock{background:rgba(255,255,255,.04);color:var(--mute);border:1px solid var(--line)}
.lessoncard .xpv{font-size:12.5px;font-weight:700;color:var(--mute)}
.lessoncard.locked{opacity:.66}.lessoncard.locked .lthumb{filter:saturate(.4)}
.lessoncard.done .lthumb::after{content:"✓";position:absolute;top:10px;right:12px;width:26px;height:26px;border-radius:50%;
  background:var(--good);color:#06231a;font-weight:800;display:grid;place-items:center;font-size:15px}

/* premium teaser */
.premteaser{margin-top:34px;border:1px solid rgba(231,200,115,.34);border-radius:var(--radius-lg);overflow:hidden;
  background:radial-gradient(130% 120% at 100% 0%,rgba(231,200,115,.14),rgba(255,255,255,.015))}
.premteaser .pt-in{padding:30px 28px}
.premteaser .pe{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-bright)}
.premteaser h3{font-size:clamp(21px,3vw,28px);font-weight:800;color:#fff;letter-spacing:-0.03em;margin:8px 0 8px;line-height:1.15;max-width:24ch}
.premteaser p{font-size:15px;color:var(--body);line-height:1.6;max-width:60ch}
.featgrid{display:grid;gap:9px 22px;grid-template-columns:1fr;margin:18px 0 4px}
@media(min-width:620px){.featgrid{grid-template-columns:1fr 1fr}}
.featgrid li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--ink);line-height:1.4;list-style:none}
.featgrid li svg{flex:0 0 auto;width:17px;height:17px;color:var(--gold-bright);margin-top:2px}

/* ---------- Become-the-Developer simulator ---------- */
.sim{border:1px solid rgba(231,200,115,.34);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(231,200,115,.06),rgba(255,255,255,.015));padding:26px 24px;margin-top:26px}
.sim-head .ce{color:var(--gold-bright)}
.simchoices{display:grid;gap:16px;margin-top:20px;grid-template-columns:1fr}
@media(min-width:720px){.simchoices{grid-template-columns:1fr 1fr}}
.simchoice .clab{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:9px}
.simchoice .clab .cnum{width:20px;height:20px;border-radius:50%;background:rgba(231,200,115,.18);color:var(--gold-bright);
  display:grid;place-items:center;font-size:11px;font-weight:800;flex:0 0 auto}
.sim .seg button{font-size:12.5px;padding:10px 8px}
.simrun{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px}
.sim-out{margin-top:8px;border-top:1px solid var(--line);padding-top:20px;
  opacity:0;max-height:0;overflow:hidden;transition:opacity .5s,max-height .7s}
.sim-out.show{opacity:1;max-height:1200px}
.sim-stats{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}
@media(min-width:680px){.sim-stats{grid-template-columns:repeat(4,1fr)}}
.sim-stat{border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--panel);text-align:center}
.sim-stat .sk{font-size:11px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--mute)}
.sim-stat .sv{font-size:clamp(19px,3vw,25px);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;margin-top:4px;line-height:1.05}
.scorebar-wrap{margin-top:20px}
.scorebar-wrap .sclab{display:flex;justify-content:space-between;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:8px}
.scorebar{height:14px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.scorebar > i{display:block;height:100%;width:0;border-radius:999px;transition:width .9s cubic-bezier(.2,.85,.25,1),background .4s}
.sim-verdict{margin-top:16px;font-size:14.5px;line-height:1.6;color:var(--body);border-left:3px solid var(--gold);padding:4px 0 4px 14px}
.sim-verdict b{color:#fff}

/* ---------- premium reveal (lesson 3) ---------- */
.premreveal{margin-top:30px;opacity:0;max-height:0;overflow:hidden;transition:opacity .6s,max-height .8s}
.premreveal.show{opacity:1;max-height:2000px}

/* ---------- Financial Jenga (leverage game) ---------- */
.jenga-grid{display:grid;gap:24px;margin-top:20px;grid-template-columns:1fr}
@media(min-width:760px){.jenga-grid{grid-template-columns:1fr 1fr;align-items:stretch}}
.jenga-stage{border:1px solid var(--line);border-radius:16px;background:var(--base3);
  position:relative;min-height:420px;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding:18px 14px 64px;overflow:hidden}
.tower{position:relative;width:100%;height:340px;flex:0 0 auto}
.tblock{position:absolute;left:50%;width:132px;height:26px;border-radius:5px;display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:#cfe0f5;white-space:nowrap;
  background:linear-gradient(180deg,#3a6f9f,#27507f);border:1px solid rgba(255,255,255,.12);
  transform-origin:bottom center;transform:translateX(-50%) translateX(var(--dx,0)) rotate(var(--rot,0));
  transition:transform .45s cubic-bezier(.3,1.2,.5,1),bottom .35s ease,opacity .7s ease;box-shadow:0 3px 8px rgba(0,0,0,.35)}
.tblock.base{width:150px;height:28px;color:#3a2c08;background:linear-gradient(180deg,#f6da92,#d4af5a);border-color:rgba(255,255,255,.25);font-weight:800}
.tower.wobbly{animation:jwob 2s ease-in-out infinite}
.tower.danger{animation:jwob 1.1s ease-in-out infinite}
@keyframes jwob{0%,100%{transform:rotate(-0.8deg)}50%{transform:rotate(0.8deg)}}
.tower.collapsed{animation:none}
.tower.collapsed .tblock{transform:translateX(-50%) translate(var(--fall,40px),260px) rotate(var(--fr,60deg));opacity:0}
.jenga-msg{position:absolute;left:14px;right:14px;bottom:14px;text-align:center;font-size:13.5px;line-height:1.5;color:var(--body);min-height:2.6em}
.jenga-msg b{color:#fff}
.jenga-side{display:flex;flex-direction:column;gap:16px;justify-content:center}
.jstats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.jstat{border:1px solid var(--line);border-radius:14px;padding:13px 15px;background:var(--panel)}
.jstat .rk{font-size:11px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--mute)}
.jstat .rv{font-size:24px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;margin-top:3px}
.jstat .rv.pos{color:var(--good-bright)}
.stability .sclab{display:flex;justify-content:space-between;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:7px}
.stabar{height:12px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.stabar>i{display:block;height:100%;width:100%;border-radius:999px;background:#5fd0a3;transition:width .5s ease,background .4s}
.stabnote{font-size:12.5px;color:var(--mute);margin-top:8px;line-height:1.5}.stabnote b{color:var(--ink)}
.jbtns{display:flex;gap:10px;flex-wrap:wrap}
.jbtns .btn{flex:1 1 auto}
.jshock{font:inherit;font-size:14.5px;font-weight:700;cursor:pointer;border-radius:12px;padding:13px 18px;
  background:linear-gradient(120deg,#7a3a37,#9a4540);color:#ffe7e4;border:1px solid rgba(255,107,98,.5);transition:.16s}
.jshock:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,107,98,.3);background:linear-gradient(120deg,#8a423f,#b04f49)}
.jbest{font-size:13px;font-weight:700;color:var(--gold-bright);min-height:1.2em;text-align:center}
@media(prefers-reduced-motion:reduce){.tower.wobbly,.tower.danger{animation:none!important}.tblock{transition:opacity .3s ease}}

/* ---------- Focus mode: full-screen panels + zoom-in (desktop) ----------
   Panel transform/opacity are driven by INLINE styles from academy.js (reliable
   across the cascade); this just sets the panel box + the smooth transition. */
html.focusmode{scroll-snap-type:y proximity;scroll-padding-top:60px}
.focuspanel{scroll-snap-align:center;min-height:100svh;display:flex;flex-direction:column;justify-content:center;box-sizing:border-box;
  transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.focuspanel.tall{scroll-snap-align:start}
@media(prefers-reduced-motion:reduce){html.focusmode{scroll-snap-type:none}.focuspanel{transition:none}}

/* pie legend */
.pie-legend{display:flex;flex-direction:column;gap:9px}
.pie-key{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--body);font-weight:600}
.pie-key i{width:12px;height:12px;border-radius:3px;flex:0 0 auto}
.pie-key b{color:#fff;margin-left:auto;font-variant-numeric:tabular-nums}

/* confetti */
.cft{position:fixed;inset:0;pointer-events:none;z-index:390;overflow:hidden}
.cft i{position:absolute;width:9px;height:14px;border-radius:2px;will-change:transform,opacity;animation:cfall linear forwards}
@keyframes cfall{0%{transform:translateY(-10vh) rotate(0);opacity:1}100%{transform:translateY(110vh) rotate(720deg);opacity:.9}}

/* ============================================================
   V2 — Immersive: Listen bar, scroll scenes, reveals, jargon,
   question banners, quiz engine + report, next-mystery, hub mastery
   ============================================================ */

/* ---------- Listen Mode bar ---------- */
.listenbar{position:sticky;top:58px;z-index:95;display:flex;align-items:center;gap:10px;
  max-width:var(--maxw);margin:0 auto;padding:10px 16px;border-radius:0 0 16px 16px;
  background:linear-gradient(180deg,rgba(16,36,63,.96),rgba(12,28,51,.96));
  border:1px solid var(--line);border-top:0;box-shadow:0 16px 40px rgba(0,0,0,.32)}
.lm-btn{flex:0 0 auto;display:grid;place-items:center;width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid var(--line2);color:var(--ink);cursor:pointer;transition:.16s;font:inherit;font-size:13px;font-weight:700}
.lm-btn:hover{border-color:rgba(231,200,115,.6);color:#fff;background:rgba(255,255,255,.1)}
.lm-play{background:linear-gradient(120deg,#f6da92,#d4af5a);color:#3a2c08;border-color:transparent;width:44px;height:44px}
.lm-play:hover{color:#3a2c08;transform:translateY(-1px)}
.lm-speed{width:auto;padding:0 12px;border-radius:999px}
.lm-mid{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:5px}
.lm-label{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.lm-title{font-size:13px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lm-pos{font-size:11.5px;color:var(--mute);font-variant-numeric:tabular-nums;flex:0 0 auto}
.lm-scrub{-webkit-appearance:none;appearance:none;width:100%;height:5px;border-radius:999px;outline:none;
  background:linear-gradient(90deg,var(--gold) var(--fill,0%),rgba(255,255,255,.12) var(--fill,0%))}
.lm-scrub::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;background:#e7c873;border:0;cursor:pointer;box-shadow:0 0 0 3px rgba(231,200,115,.18)}
.lm-scrub::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:#e7c873;border:0;cursor:pointer}
.listenbar.playing .lm-title::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--good);margin-left:7px;vertical-align:middle;animation:lmpulse 1.2s ease-in-out infinite}
@keyframes lmpulse{0%,100%{opacity:.4}50%{opacity:1}}
@media(max-width:560px){.lm-back,.lm-fwd{display:none}}

/* ---------- scroll reveal ---------- */
.sx{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1);transition-delay:var(--d,0s)}
.sx.in{opacity:1;transform:none}

/* ---------- question banner ---------- */
.qbanner{position:relative;max-width:760px;margin:0 auto;padding:64px 24px 10px;text-align:center}
.qbanner .qno{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.qbanner h2{font-size:clamp(26px,4.4vw,42px);font-weight:800;letter-spacing:-0.035em;line-height:1.12;color:#fff;
  background:linear-gradient(180deg,#fff,#cddbee);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.qbanner .qsub{margin-top:14px;font-size:16px;color:var(--mute);font-style:italic}

/* ---------- scroll scene (sticky stage in tall track) ---------- */
.scene-track{position:relative}
.scene-stage{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;overflow:hidden}
.scene-stage > svg{width:min(680px,90vw);height:auto}
.scene-hint svg{width:14px;height:14px;flex:0 0 auto}
.scene-cap{text-align:center;min-height:48px}
.scene-cap .sc-use{font-size:clamp(18px,3vw,26px);font-weight:800;color:#fff;letter-spacing:-0.02em}
.scene-cap .sc-val{font-size:clamp(15px,2.4vw,19px);font-weight:700;color:var(--gold-bright);font-variant-numeric:tabular-nums;margin-top:4px}
.scene-dots{display:flex;gap:8px;justify-content:center;margin-top:4px}
.scene-dots i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.2);transition:.3s}
.scene-dots i.on{background:var(--gold-bright);transform:scale(1.25)}
.scene-hint{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);font-size:12px;color:var(--mute);letter-spacing:.04em;display:flex;align-items:center;gap:7px;opacity:.85}
.scene-hint svg{animation:scrollnudge 1.6s ease-in-out infinite}
@keyframes scrollnudge{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}

/* ---------- lesson prose + jargon ---------- */
.lprose{max-width:740px;margin:0 auto;padding:8px 24px 0}
.lprose .leyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);margin-bottom:12px}
.lprose h3{font-size:clamp(25px,3.6vw,36px);font-weight:800;letter-spacing:-0.03em;color:#fff;line-height:1.16;margin-bottom:16px}
.lprose p{font-size:clamp(17px,1.55vw,19.5px);line-height:1.75;color:var(--body);margin-bottom:16px}
.lprose p b{color:#fff}
.term{border-bottom:1.5px dotted var(--gold);cursor:help;position:relative;color:var(--gold-bright);font-weight:600}
.term .tip{position:absolute;left:50%;bottom:calc(100% + 10px);transform:translateX(-50%) translateY(6px);width:max-content;max-width:min(78vw,300px);
  background:linear-gradient(180deg,#0e2140,#0b1a30);border:1px solid rgba(231,200,115,.3);border-radius:12px;padding:11px 14px;
  font-size:13.5px;font-weight:400;line-height:1.5;color:var(--body);box-shadow:0 18px 44px rgba(0,0,0,.5);
  opacity:0;visibility:hidden;transition:.2s;z-index:120;text-align:left}
.term:hover .tip{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.term .tip b{color:var(--gold-bright)}
/* rich (click-to-open) terms get a clear affordance */
.term-rich{cursor:pointer}
.term-rich::after{content:" ⓘ";font-size:.72em;color:var(--gold-bright);vertical-align:.15em;opacity:.85}
@media(hover:none){.term .tip{display:none}}  /* on touch, the modal is the path */

/* ---------- glossary modal ---------- */
.term-modal-overlay{position:fixed;inset:0;z-index:500;display:flex;align-items:center;justify-content:center;padding:18px;
  background:rgba(5,11,22,.74);-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);opacity:0;transition:opacity .22s}
.term-modal-overlay.open{opacity:1}
.term-modal{position:relative;max-width:560px;width:100%;max-height:88vh;overflow:auto;border-radius:22px;
  background:linear-gradient(180deg,#0e2140,#0b1a30);border:1px solid rgba(231,200,115,.3);box-shadow:0 30px 80px rgba(0,0,0,.62);
  padding:0 26px 26px;transform:translateY(16px) scale(.975);transition:transform .26s cubic-bezier(.2,.85,.25,1)}
.term-modal-overlay.open .term-modal{transform:none}
.term-close{position:absolute;top:13px;right:13px;width:34px;height:34px;border-radius:50%;border:1px solid var(--line2);
  background:rgba(255,255,255,.07);color:#fff;font-size:21px;line-height:30px;text-align:center;cursor:pointer;z-index:2;padding:0;transition:.16s}
.term-close:hover{background:rgba(255,255,255,.14)}
.term-fig{margin:0 -26px 18px;border-bottom:1px solid var(--line);background:var(--base3);padding:20px 22px;border-radius:22px 22px 0 0}
.term-fig svg{display:block;width:100%;height:auto;max-height:230px}
.term-eyebrow{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gold)}
.term-modal h3{font-size:clamp(21px,3vw,27px);font-weight:800;color:#fff;letter-spacing:-0.02em;margin:6px 0 12px;line-height:1.15}
.term-detail{font-size:15.5px;line-height:1.7;color:var(--body)}
.term-detail p{margin:0 0 12px}.term-detail p:last-child{margin-bottom:0}
.term-detail b{color:#fff}
.term-relate{margin-top:18px;border-left:3px solid var(--gold);padding:11px 0 11px 16px;background:rgba(231,200,115,.06);
  border-radius:0 12px 12px 0;font-size:14.5px;line-height:1.6;color:var(--body)}
.term-relate h4{font-size:11.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--gold-bright);margin-bottom:6px}
.term-relate b{color:#fff}
@media(prefers-reduced-motion:reduce){.term-modal{transition:none}.term-modal-overlay{transition:none}}

/* ---------- application nudge ---------- */
.nudge{max-width:680px;margin:18px auto 0;padding:14px 18px;border-left:3px solid var(--gold);
  background:rgba(231,200,115,.07);border-radius:0 12px 12px 0;font-size:14.5px;line-height:1.55;color:var(--ink)}
.nudge b{color:var(--gold-bright)}

/* ---------- quiz engine ---------- */
.quizwrap{max-width:680px;margin:0 auto;padding:0 4px}
.quiz-head{margin-bottom:18px}
.quiz-meta{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}
.quiz-meta .qn{font-size:13px;font-weight:700;color:var(--ink)}
.quiz-meta .qtype{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--gold);background:rgba(231,200,115,.12);border:1px solid rgba(231,200,115,.28);border-radius:999px;padding:3px 10px}
.quiz-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.quiz-bar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--gold-bright));transition:width .4s ease}
.q-prompt{font-size:clamp(18px,2.6vw,22px);font-weight:700;color:#fff;line-height:1.35;margin-bottom:14px;letter-spacing:-0.01em}
.q-visual{margin:0 0 16px;border:1px solid var(--line);border-radius:14px;background:var(--base3);padding:14px}
.q-visual svg{display:block;width:100%;height:auto}
.q-opts{display:flex;flex-direction:column;gap:10px}
.q-opt .otext{font-size:14.5px;line-height:1.45}
.q-why{margin-top:14px}
.quiz-foot{margin-top:18px;display:flex;justify-content:flex-end}

/* report */
.report{text-align:center;padding:8px 0}
.report-ring{--p:0deg;width:120px;height:120px;border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;
  background:conic-gradient(var(--gold-bright) var(--p),rgba(255,255,255,.1) 0)}
.report-ring span{width:96px;height:96px;border-radius:50%;background:var(--base2);display:grid;place-items:center;
  font-size:30px;font-weight:800;color:#fff}
.report-ring small{font-size:15px;color:var(--mute);font-weight:700}
.report h3{font-size:clamp(20px,3vw,26px);font-weight:800;color:#fff;letter-spacing:-0.02em}
.report-pace{font-size:14.5px;color:var(--mute);margin-top:6px}
.report-block{text-align:left;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-top:14px;background:var(--panel)}
.report-block h4{font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;margin-bottom:7px}
.report-block.good h4{color:var(--good-bright)}.report-block.warn h4{color:var(--gold-bright)}.report-block.gap h4{color:#ff9e98}
.report-block p,.report-block li{font-size:14.5px;color:var(--body);line-height:1.5}
.report-block ul{list-style:none;display:flex;flex-direction:column;gap:7px}
.report-block.gap a{color:var(--gold-bright);font-weight:700;text-decoration:none}
.report-block.gap a:hover{text-decoration:underline}
.report-actions{margin-top:18px}

/* ---------- next mystery ---------- */
.mystery{max-width:680px;margin:30px auto 0;border:1px solid var(--line2);border-radius:var(--radius-lg);overflow:hidden;
  background:radial-gradient(130% 120% at 0% 0%,rgba(111,143,208,.16),rgba(255,255,255,.015));padding:28px 26px;text-align:center}
.mystery .me{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gold-bright)}
.mystery h3{font-size:clamp(20px,3vw,27px);font-weight:800;color:#fff;letter-spacing:-0.02em;margin:10px auto 6px;max-width:26ch;line-height:1.18}
.mystery p{font-size:15px;color:var(--body);max-width:50ch;margin:0 auto 18px;line-height:1.55}

/* ---------- mastery gate (remediation) ---------- */
.mystery.gate{background:radial-gradient(130% 120% at 0% 0%,rgba(231,200,115,.14),rgba(255,255,255,.015));border-color:rgba(231,200,115,.4)}
.mystery.gate .me{color:var(--gold-bright)}
.mystery.gate p b{color:#fff}

/* ---------- Knowledge Map ---------- */
.kmap{margin-top:14px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--card);padding:22px 24px}
.kmap-legend{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:16px}
.kmap-legend span{display:flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:var(--mute)}
.kmap-legend i{width:11px;height:11px;border-radius:3px;flex:0 0 auto}
.kmap-rows{display:flex;flex-direction:column;gap:18px}
.kmap-row .kr-lesson{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.kmap-chips{display:flex;flex-wrap:wrap;gap:9px}
.kchip{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;padding:8px 13px;border-radius:999px;
  border:1px solid var(--line2);background:rgba(255,255,255,.04);color:var(--body);transition:.3s}
.kchip .kdot{width:9px;height:9px;border-radius:50%;flex:0 0 auto;background:var(--mute);transition:.3s}
.kchip.mastered{border-color:rgba(95,208,163,.45);background:rgba(95,208,163,.12);color:#dff3e9}
.kchip.mastered .kdot{background:var(--good-bright);box-shadow:0 0 10px rgba(95,208,163,.6)}
.kchip.developing{border-color:rgba(231,200,115,.4);background:rgba(231,200,115,.1);color:#f3e6c2}
.kchip.developing .kdot{background:var(--gold-bright);box-shadow:0 0 10px rgba(231,200,115,.55)}
.kchip.weak{border-color:rgba(255,107,98,.35);background:rgba(255,107,98,.08);color:#ffd6d2}
.kchip.weak .kdot{background:var(--danger)}
.kchip.locked{opacity:.5}
.kchip.mastered .kdot,.kchip.developing .kdot{animation:kpulse 2.4s ease-in-out infinite}
@keyframes kpulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.7}}
@media(prefers-reduced-motion:reduce){.kchip .kdot{animation:none!important}}

/* ---------- source note ---------- */
.sourcenote{max-width:680px;margin:30px auto 0;padding:16px 18px;border:1px dashed var(--line2);border-radius:14px;
  font-size:13px;color:var(--mute);line-height:1.6}
.sourcenote b{color:var(--body)}

/* ---------- hub mastery rings ---------- */
.lessoncard .mastery{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:700;color:var(--gold-bright);margin-top:2px}
.mini-ring{--p:0deg;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;
  background:conic-gradient(var(--gold-bright) var(--p),rgba(255,255,255,.12) 0)}
.mini-ring span{width:26px;height:26px;border-radius:50%;background:var(--base2);display:grid;place-items:center;font-size:9.5px;font-weight:800;color:#fff}

@media(prefers-reduced-motion:reduce){
  .barrect,.segrect,.pie-seg,.needle,.rank-row,.rank-bar,.bar>i,.reward,.toast,.reveal-msg,.why-body,.kfeedback,
  .sx,.scene-dots i,.quiz-bar>i{transition:none!important}
  .cft{display:none!important}
  .scene-hint svg{animation:none!important}
  .sx{opacity:1;transform:none}
}