/* Sparky — the app stylesheet.
   Extracted 15 Oct 2026 from five pages that each carried an identical copy inline:
   cap-home, cap-dash, cap-exams, cap-lessons, cap-notes. 48 KB x 5 was 240 KB of the
   same bytes. The old site made exactly this mistake with 51 pages (site.css, 12 Oct);
   it was repeated here before anyone linked these pages together.
   cap-read and cap-test have their own smaller sheets and are not folded in yet. */
:root{
  /* springs: things speed up, overshoot a hair and settle, instead of gliding at an even pace.
     Worked out from a damped spring (stiffness/damping) and written as CSS linear() curves. */
  --spring-ui:linear(0.000, 0.038, 0.132, 0.255, 0.388, 0.518, 0.637, 0.740, 0.825, 0.893, 0.945, 0.982, 1.008, 1.024, 1.033, 1.036, 1.035, 1.033, 1.028, 1.024, 1.019, 1.014, 1.011, 1.007, 1.005, 1.003, 1.001, 1.000, 0.999, 0.999, 1.000);      /* buttons, toggles, cards: snappy, ~4% overshoot */
  --spring-soft:linear(0.000, 0.042, 0.142, 0.268, 0.401, 0.527, 0.640, 0.736, 0.814, 0.876, 0.922, 0.957, 0.980, 0.996, 1.006, 1.012, 1.014, 1.014, 1.014, 1.012, 1.010, 1.008, 1.006, 1.005, 1.003, 1.002, 1.002, 1.001, 1.001, 1.000, 1.000);  /* big things: the sidebar, the logo, the headline: heavier, ~1% */
  --t-ui:.5s; --t-soft:.8s;
}
/* The logged-in area, in the live home page's own dark theme: gold, green and the cable
   colours. Sidebar to get around; sign-in lands on Home (the hero), Dashboard is one click. */
:root{
  --bg:#151917; --deep:#0d100e; --panel:#1d2320; --panel2:#232a26; --line:rgba(255,255,255,.09);
  --ink:#f2f5f1; --soft:#c4ccc6; --muted:#aab3ad;
  --gold:#f5c518; --gold-soft:#f5d45a; --gold-ink:#f5c518; --green:#2f8a3c; --green-hi:#6cc27a;
  --brown:#c07a45; --blue:#4a8ad8; --cgreen:#38a049; --stripe:#e8c21a; --grey:#9aa39e; --warn:#f08a64;
  --display:"Barlow Semi Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;

  /* ---- Scales -------------------------------------------------------------
     Derived from what the pages already use, not from habit: the most-used font
     size is 15, and the spacing lands on a 2px grid (6, 10, 14, 18 outnumber
     8, 12, 16), so the scale follows the design instead of fighting it.
     Only exact matches have been migrated — snapping 14.5 to 15 or 12 to 14
     would move things, and the look is already signed off. 15 Oct 2026. */
  --fs-1:12px; --fs-2:13.5px; --fs-3:15px; --fs-4:16px;
  --fs-5:18px; --fs-6:22px; --fs-7:28px; --fs-8:36px;
  --sp-1:2px; --sp-2:6px; --sp-3:10px; --sp-4:14px;
  --sp-5:18px; --sp-6:24px; --sp-7:36px;
  --r-xs:2px; --r-sm:6px; --r-md:10px; --r-lg:14px; --r-pill:999px;
  color-scheme:dark;
}

/* ---- Light theme ----------------------------------------------------------
   Dark is the default and is left exactly as it was; light is the mirror, so the
   look that was already signed off does not shift. Most values come straight from
   the old site's palette, so the two sites stay consistent.
   --gold stays bright in BOTH themes because it is a fill behind dark text; only
   --gold-ink darkens, because gold text on white cannot be read. 15 Oct 2026. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
  --bg:#f3f4f1; --deep:#e7e9e4; --panel:#ffffff; --panel2:#f7f8f5; --line:rgba(0,0,0,.12);
  --ink:#1d2420; --soft:#3d4641; --muted:#5b645e;
  --gold:#f5c518; --gold-soft:#e8b800; --gold-ink:#8a6b00; --green:#2f8a3c; --green-hi:#1f6e2b;
  --brown:#8a4b22; --blue:#1f5fa8; --cgreen:#2a7c37; --stripe:#b8900f; --grey:#6e7872; --warn:#a33a1a;
  color-scheme:light;
  }
}
:root[data-theme="light"] {
  --bg:#f3f4f1; --deep:#e7e9e4; --panel:#ffffff; --panel2:#f7f8f5; --line:rgba(0,0,0,.12);
  --ink:#1d2420; --soft:#3d4641; --muted:#5b645e;
  --gold:#f5c518; --gold-soft:#e8b800; --gold-ink:#8a6b00; --green:#2f8a3c; --green-hi:#1f6e2b;
  --brown:#8a4b22; --blue:#1f5fa8; --cgreen:#2a7c37; --stripe:#b8900f; --grey:#6e7872; --warn:#a33a1a;
  color-scheme:light;
}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.55 var(--body)}
a{color:inherit}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
h1,h2,h3{font-family:var(--display);line-height:1.1;margin:0;text-wrap:balance}
p{margin:0}
button{font:inherit;color:inherit}
.sr{position:absolute;left:-9999px}

/* ---------- shell ---------- */
.shell{display:grid;grid-template-columns:264px minmax(0,1fr);min-height:100vh}
.side{position:sticky;top:0;height:100vh;overflow-y:auto;background:var(--deep);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:2px;padding:18px 12px 16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;padding:2px 10px 18px}
.logo svg{width:38px;height:38px;flex:none}
.logo span{display:grid;line-height:1}
.logo b{font:700 20px var(--display);letter-spacing:.06em}
.logo small{font:600 10.5px var(--display);letter-spacing:.2em;color:var(--muted);margin-top:3px}
.navi{display:flex;align-items:center;gap:12px;min-height:46px;padding:8px 12px;border-radius:var(--r-md);text-decoration:none;font-weight:600;font-size:16.5px;border:0;border-left:3px solid transparent;background:none;width:100%;text-align:left;cursor:pointer;color:var(--soft)}
.navi .ic{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:rgba(255,255,255,.05);flex:none}
.navi svg{width:20px;height:20px;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.navi:hover{background:rgba(255,255,255,.05);color:#fff}
.navi[aria-current="page"]{background:rgba(245,197,24,.10);border-left-color:var(--gold);color:#fff}
.navi[aria-current="page"] .ic{background:rgba(245,197,24,.16)}
.navi.ask{color:var(--gold-soft)}
.navi.ask .ic{background:var(--gold)}
.navi.ask svg{stroke:#15181a}
.navsep{height:1px;background:var(--line);margin:10px 8px}
.sidefoot{margin-top:auto;border-top:1px solid var(--line);padding-top:12px;display:grid;gap:2px}
.acc{font-size:14px;color:var(--muted);padding:2px 12px 10px}
.acc b{color:var(--gold-soft);font-weight:600;display:block}

.topbar{display:none}
.main{min-width:0;position:relative}
.main:focus{outline:none}
.page{padding:30px 36px 130px;max-width:1080px}
.main::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:48px 48px}
.main{isolation:isolate}

@media (max-width:900px){
  .shell{display:block}
  .topbar{display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:20;background:rgba(13,16,14,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:8px 12px;min-height:58px}
  .topbar .logo{padding:0}
  .topbar .logo svg{width:32px;height:32px}
  .menu{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:6px 14px;border:1px solid rgba(255,255,255,.18);border-radius:var(--r-pill);background:transparent;cursor:pointer;font:700 15px var(--display);letter-spacing:.05em;text-transform:uppercase}
  .menu svg{width:18px;height:18px;stroke:currentColor;stroke-width:2.2;fill:none;stroke-linecap:round}
  .side{position:fixed;left:0;top:0;bottom:0;height:auto;width:min(300px,86vw);z-index:40;transform:translateX(-104%);transition:transform var(--t-soft) var(--spring-soft);box-shadow:0 0 50px rgba(0,0,0,.6)}
  .side.open{transform:none}
  .scrim{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:30}
  .page{padding:20px 16px 130px}
}
@media (prefers-reduced-motion: reduce){ .side{transition:none} }

/* ---------- home: the hero ---------- */
.hero{position:relative;overflow:hidden;isolation:isolate;min-height:min(760px,100vh);display:grid;align-content:center}
.hero-wires{position:absolute;inset:0;width:100%;height:100%;z-index:-2;-webkit-mask-image:linear-gradient(180deg,#000 55%,transparent 100%);mask-image:linear-gradient(180deg,#000 55%,transparent 100%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(21,25,23,.92) 0%,rgba(21,25,23,.55) 55%,rgba(21,25,23,.15) 100%),linear-gradient(0deg,#151917 0%,rgba(21,25,23,0) 45%)}
.hero::before{content:"";position:absolute;z-index:-1;left:-10%;top:4%;width:82%;height:86%;background:radial-gradient(52% 46% at 34% 44%,rgba(245,197,24,.20),transparent 68%),radial-gradient(44% 42% at 62% 66%,rgba(47,138,60,.16),transparent 70%);filter:blur(28px);animation:aurora 16s ease-in-out infinite alternate}
@keyframes aurora{to{transform:translate3d(5%,-4%,0) scale(1.1)}}
.spark{animation:spark 3.4s linear infinite}
.spark.s2{animation-duration:4.8s;animation-delay:-2s}
@keyframes spark{from{stroke-dashoffset:1500}to{stroke-dashoffset:0}}
.hero-bolt{animation:boltglow 4s ease-in-out infinite}
@keyframes boltglow{50%{opacity:.55}}
.hero-in{padding:64px 36px 60px;max-width:1080px}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{position:relative;display:inline-flex;align-items:center;border:1px solid rgba(245,197,24,.55);color:#f5d45a;border-radius:var(--r-pill);padding:8px 18px 8px 34px;font:700 13px var(--body);letter-spacing:.16em;text-transform:uppercase;background:rgba(245,197,24,.08)}
.pill::before{content:"";position:absolute;left:16px;top:50%;width:7px;height:7px;margin-top:-3.5px;border-radius:50%;background:var(--gold);animation:ping 2.4s ease-out infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(245,197,24,.45)}70%,100%{box-shadow:0 0 0 11px rgba(245,197,24,0)}}
.pill.a4{border-color:rgba(106,196,118,.45);background:rgba(106,196,118,.10);color:#9ad6a6;letter-spacing:.04em}
.pill.a4::before{background:var(--green-hi);animation:none}
.hero-h{font:700 clamp(56px,11vw,150px)/.85 var(--display);text-transform:uppercase;letter-spacing:-.018em;margin:26px 0 0}
.hero-h span{display:block}
.hero-h span:nth-child(1){color:#fff}
.hero-h span:nth-child(2){color:transparent;-webkit-text-stroke:2px rgba(255,255,255,.62)}
.hero-h .hl{background:linear-gradient(96deg,#f5c518 12%,#fff0a8 44%,#ffd84d 72%,#f5c518 92%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 44px rgba(245,197,24,.42));animation:sheen 7s ease-in-out infinite}
@keyframes sheen{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.hero-sub{max-width:52ch;margin-top:26px;font-size:clamp(17px,1.9vw,20px);color:#ccd4ce}
.hero-sub b{color:#fff}
.ctas{margin-top:34px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;max-width:880px}
.hbtn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);padding:13px 12px;font:700 16px/1.2 var(--display);letter-spacing:.03em;text-decoration:none;text-align:center;cursor:pointer;border:0;transition:transform var(--t-ui) var(--spring-ui),background .15s}
.hbtn:active{transform:scale(.96);transition-duration:.08s}
.hbtn.primary{background:linear-gradient(180deg,#ffd84d,#f5c518 62%,#e0ad00);color:#15181a;box-shadow:inset 0 1px 0 rgba(255,255,255,.55),0 2px 0 #a37f00}
.hbtn.primary:hover{transform:translateY(-2px)}
.hbtn.ghost{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.22);color:#f2f5f1;box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
.hbtn.ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5)}
.trust{list-style:none;margin:40px 0 0;padding:24px 0 0;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px 34px;font-size:15.5px;color:var(--muted);max-width:760px}
.trust span{color:#7fe08f;font-weight:700;margin-right:6px}
@media (max-width:1100px){ .ctas{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:560px){ .hero-in{padding:44px 16px 44px} .hbtn{font-size:var(--fs-3);padding:12px 8px;border-radius:var(--r-lg)} .hero-h span:nth-child(2){-webkit-text-stroke-width:1.5px} }
/* the sign-in moment: the three lines drop in one after another, then the current runs */

@keyframes rise{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){
  .hero::before,.pill::before,.hero-h .hl,.spark,.hero-bolt{animation:none}
  .spark{display:none}
  .intro .pills,.intro .hero-h span,.intro .hero-sub,.intro .ctas,.intro .trust{animation:none}
  .hbtn{transition:none}
}

.resume{margin:0 36px 60px;display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;padding:16px 20px;border-radius:16px;background:linear-gradient(180deg,rgba(47,138,60,.16),rgba(47,138,60,.05));border:1px solid rgba(108,194,122,.35);border-left:4px solid var(--green-hi);max-width:1008px}
.resume .txt{flex:1 1 280px}
.resume .txt b{display:block;font:700 22px var(--display)}
.resume .txt span{color:var(--soft);font-size:15.5px}
.resume .row{display:flex;gap:10px;flex-wrap:wrap}
.resume .hbtn{padding:11px 20px}
@media (max-width:900px){ .resume{margin:0 16px} }

.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.home-tiles{padding:28px 36px 0;max-width:1080px}
@media (max-width:900px){ .home-tiles{padding:24px 16px 0} }
.feat{appearance:none;text-align:left;cursor:pointer;display:grid;align-content:start;gap:6px;padding:18px 18px 20px;border-radius:var(--r-lg);background:var(--panel);border:1px solid var(--line);color:var(--ink);text-decoration:none;transition:transform var(--t-ui) var(--spring-ui),border-color .18s}
.feat:hover{transform:translateY(-4px);border-color:var(--green-hi)}
.feat .fi{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:rgba(108,194,122,.12)}
.feat .fi svg{width:26px;height:26px;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.feat b{font:700 21px var(--display);margin-top:6px}
.feat .fd{font-size:14.5px;line-height:1.45;color:var(--muted)}
.feat.ask{border-color:var(--gold);background:linear-gradient(180deg,rgba(245,197,24,.14),rgba(245,197,24,.04)),var(--panel)}
.feat.ask .fi{background:var(--gold)}
.feat.ask .fi svg{stroke:#15181a}
@media (prefers-reduced-motion: reduce){ .feat{transition:none} }

/* ---------- inner pages ---------- */
.ph{font:700 clamp(34px,4.4vw,48px)/1 var(--display);text-transform:uppercase;letter-spacing:.005em}
.ph .hl{color:var(--gold-ink)}
.psub{color:var(--soft);margin:10px 0 24px;max-width:62ch}
h2.sec{font:700 24px var(--display);margin:0 0 10px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
h2.sec small{font:500 15px var(--body);color:var(--muted)}
.block{margin-top:30px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-top:28px}
@media (max-width:1100px){ .grid2{grid-template-columns:1fr;gap:0} .grid2 > section{margin-top:28px} .grid2 > section:first-child{margin-top:0} }

.next{background:linear-gradient(180deg,rgba(245,197,24,.12),rgba(245,197,24,.03)),var(--panel);border:1.5px solid var(--gold);border-radius:16px;padding:20px 22px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 24px;align-items:center}
.next .kicker{font:700 13px var(--body);letter-spacing:.14em;text-transform:uppercase;color:var(--gold-soft)}
.next h2{font:700 36px var(--display)}
.next .why{color:var(--soft)}
.next .hbtn{grid-column:2;grid-row:1/span 3;padding:13px 24px}
@media (max-width:620px){ .next{grid-template-columns:1fr} .next .hbtn{grid-column:1;grid-row:auto;justify-self:start;margin-top:12px} }

.fact{padding:14px 18px;border-bottom:1px solid var(--line);display:grid;gap:2px}
.fact:last-child{border-bottom:0}
.fact .what{font-size:var(--fs-3);color:var(--muted)}
.num{font:700 32px/1.1 var(--mono);font-variant-numeric:tabular-nums;color:var(--ink)}
.num small{font:500 16px var(--body);color:var(--muted);margin-left:8px}
.fact .ctx b{color:var(--ink)}
.up{color:#7fe08f;font-weight:600}
.empty{color:var(--muted);font-size:var(--fs-4);padding:16px 18px}

.rows{list-style:none;margin:0;padding:0}
.rows > li{border-bottom:1px solid var(--line)}
.rows > li:last-child{border-bottom:0}
.row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 14px;align-items:center;min-height:58px;padding:11px 18px;text-decoration:none;width:100%;text-align:left;background:none;border:0;cursor:pointer;color:var(--ink)}
.row:hover{background:rgba(255,255,255,.03)}
.row:hover .t{text-decoration:underline;text-underline-offset:3px}
.row .t{font-weight:600;font-size:17px}
.row .s{font-size:var(--fs-3);color:var(--muted);grid-column:1}
.row .r{grid-row:1/span 2;grid-column:2;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:var(--fs-3);white-space:nowrap}
.state{font:600 14px var(--body);padding:3px 11px;border-radius:var(--r-pill);white-space:nowrap;border:1px solid}
.state.solid{background:rgba(108,194,122,.14);border-color:rgba(108,194,122,.55);color:#9ad6a6}
.state.look{background:rgba(245,197,24,.12);border-color:rgba(245,197,24,.5);color:var(--gold-soft)}
.state.none{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--muted)}
.score{font:700 15.5px var(--mono);color:var(--ink)}
.pass{color:#7fe08f}.below{color:var(--gold-soft)}

.mod{padding:14px 18px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:52px minmax(0,1fr);gap:4px 16px;align-items:start}
.mod:last-child{border-bottom:0}
.mod .n{font:700 36px/1 var(--display);color:var(--gold-ink)}
.mod h3{font:700 21px var(--display)}
.parts{display:grid;gap:8px;margin-top:8px}
.part{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:10px 12px;border-radius:var(--r-md);background:rgba(255,255,255,.03);border:1px solid var(--line)}
.part .pn{font-weight:600;min-width:62px}
.part .st{font-size:14.5px;color:var(--muted);margin-right:auto}
.chipbtn{display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:6px 14px;border-radius:var(--r-pill);font:700 14px var(--display);letter-spacing:.04em;text-decoration:none;border:1px solid}
.chipbtn.read{background:var(--green);border-color:var(--green);color:#fff}
.chipbtn.watch{border-color:rgba(74,138,216,.6);color:#9cc2f0}
.chipbtn.pdf{border-color:rgba(255,255,255,.22);color:var(--soft)}

details.grp{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);margin-top:14px;overflow:hidden}
details.grp > summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:2px 14px;align-items:center;padding:16px 18px}
details.grp > summary::-webkit-details-marker{display:none}
details.grp > summary .n{font:700 34px/1 var(--display);color:var(--gold-ink);grid-row:1/span 2}
details.grp > summary b{font:700 23px var(--display)}
details.grp > summary .s{color:var(--muted);font-size:var(--fs-3);grid-column:2}
details.grp > summary .cnt{grid-row:1/span 2;grid-column:3;font:600 14px var(--body);color:var(--gold-soft);border:1px solid rgba(245,197,24,.45);border-radius:var(--r-pill);padding:3px 11px;white-space:nowrap}
details.grp[open] > summary{border-bottom:1px solid var(--line)}
.ex{padding:14px 18px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 16px;align-items:center}
.ex:last-child{border-bottom:0}
.ex h3{font:700 20px var(--display)}
.ex .lv{color:var(--green-hi);font-weight:600;font-size:14.5px}
.ex .meta{font-size:14.5px;color:var(--muted)}
.ex .res{font-size:var(--fs-3)}
.ex .go{grid-column:2;grid-row:1/span 4}
@media (max-width:560px){ .ex{grid-template-columns:1fr} .ex .go{grid-column:1;grid-row:auto;justify-self:start} }

.tile{padding:18px 18px 20px;display:grid;gap:8px;align-content:start}
.tile h3{font:700 23px var(--display)}
.tile p{color:var(--muted);font-size:15.5px}
.tile .f{font:500 14px var(--mono);color:var(--gold-soft)}
.tile .hbtn{justify-self:start;padding:10px 20px;margin-top:4px}
.walk{display:flex;gap:16px;align-items:center;padding:16px;border-radius:16px;background:linear-gradient(180deg,rgba(47,138,60,.14),rgba(47,138,60,.05));border:1px solid var(--line);border-left:4px solid var(--green-hi);margin-bottom:22px}
.walk .play{width:54px;height:54px;border-radius:50%;background:var(--gold);color:#15181a;display:grid;place-items:center;flex:none}
.walk b{display:block;font:700 20px var(--display)}
.walk span{color:var(--muted);font-size:var(--fs-3)}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;padding:16px 18px;font-weight:600;font-size:17px}
.faq .a{padding:0 18px 16px;color:var(--soft);display:grid;gap:8px}
.prose{padding:18px;display:grid;gap:10px}
.prose b{color:var(--ink)}
/* the account page's devices list, 23 Oct 2026 */
.devs{margin-top:14px}
.devlist{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.devlist li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-md)}
.devlist small,.devs small{color:var(--muted)}
.devbtn{font:600 14px/1.2 var(--body);color:var(--ink);background:transparent;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 14px;cursor:pointer;flex:none}
.devbtn:hover{border-color:var(--gold)}
.devbtn:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.devbtn:disabled{opacity:.5;cursor:default}
a.devbtn{display:inline-block;text-decoration:none}

.wire{display:block;width:100%;height:8px;margin:14px 0 22px}
.wire .w0{stroke:rgba(255,255,255,.12);stroke-width:4;stroke-linecap:round}
.wire .p{stroke:var(--gold);stroke-width:5;stroke-linecap:round;stroke-dasharray:90 1000;animation:carry 1s linear infinite}
@keyframes carry{from{stroke-dashoffset:90}to{stroke-dashoffset:-1000}}
.sk{background:rgba(255,255,255,.05);border-radius:var(--r-lg)}
@media (prefers-reduced-motion: reduce){ .wire .p{animation:none;stroke-dasharray:none;opacity:.5} }
.err{background:var(--panel);border:1.5px solid var(--warn);border-radius:16px;padding:20px 22px;display:grid;gap:12px;max-width:640px}
.err h2{font:700 28px var(--display)}
.err p{color:var(--soft)}




.hero-rule{height:1px;background:rgba(255,255,255,.14);margin-top:30px;max-width:880px}
.hero .resume{margin:28px 0 0;max-width:880px}
.hero .trust{margin-top:28px}

@media (prefers-reduced-motion: reduce){ .intro .hero-rule,.intro .resume{animation:none} }


/* tab up your books: the video, the rules, a checklist per book */
.vidcard{display:flex;gap:18px;align-items:center;padding:16px;border-radius:16px;background:var(--panel);border:1px solid var(--line);text-decoration:none;color:var(--ink);margin-bottom:22px}
.vidcard:hover{border-color:var(--gold)}
.vidthumb{position:relative;flex:0 0 220px;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#0d100e;display:grid;place-items:center}
.vidthumb .tabsart{position:absolute;inset:0;width:100%;height:100%}
.vidthumb .lplay{position:relative;left:auto;top:auto;margin:0}
.vidcard b{display:block;font:700 23px var(--display)}
.vidcard span.sub{color:var(--muted);font-size:var(--fs-3)}
@media (max-width:620px){ .vidcard{flex-direction:column;align-items:stretch} .vidthumb{flex:auto} }
.rules{list-style:none;margin:0;padding:16px 18px;display:grid;gap:8px}
.rules li{padding-left:22px;position:relative;color:var(--soft)}
.rules li::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;border-radius:var(--r-xs);background:var(--gold)}
.rules b{color:var(--ink)}
.tprog{font:600 14px var(--body);color:var(--gold-soft);white-space:nowrap}
.tprog.done{color:#7fe08f}
.tlist{list-style:none;margin:0;padding:6px 0}
.tlist label{display:grid;grid-template-columns:44px 56px minmax(0,1fr) auto;gap:10px;align-items:center;min-height:48px;padding:6px 18px;cursor:pointer}
.tlist label:hover{background:rgba(255,255,255,.03)}
.tlist input{width:22px;height:22px;accent-color:var(--gold);margin:0 auto;cursor:pointer}
.tlist .pg{font:700 15px var(--mono);color:var(--gold-soft);font-variant-numeric:tabular-nums}
.tlist .lb{font-weight:600}
.tlist .rf{font-size:14px;color:var(--muted);white-space:nowrap}
.tlist input:checked ~ .lb{color:var(--muted);text-decoration:line-through;text-decoration-color:rgba(255,255,255,.35)}
.thead{display:grid;grid-template-columns:44px 56px minmax(0,1fr) auto;gap:10px;padding:10px 18px 4px;font-size:13px;color:var(--muted);font-weight:600}
@media (max-width:520px){ .tlist label,.thead{grid-template-columns:36px 44px minmax(0,1fr);padding-inline:12px} .tlist .rf,.thead .rfh{display:none} }


/* topic lists under each part: plain, dotted, as on the live site */
.topics{flex-basis:100%;order:5;font-size:14.5px;color:var(--muted);line-height:1.5}
/* a practical has no part label or status, so push its buttons right, as on the module rows */
.part > .topics:first-child + .chipbtn.read{margin-left:auto}
/* the working calculators, in the dark theme */
.tools{display:grid;gap:10px;margin-top:6px}
details.tool{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);display:block}
details.tool>summary{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;list-style:none;border-radius:var(--r-lg)}
details.tool>summary::-webkit-details-marker{display:none}
details.tool>summary:hover{background:rgba(255,255,255,.03)}
details.tool[open]{border-color:rgba(245,197,24,.55)}
details.tool[open]>summary{border-bottom:1px solid var(--line);border-radius:14px 14px 0 0}
.ti{width:40px;height:40px;border-radius:var(--r-md);display:grid;place-items:center;background:rgba(245,197,24,.12);color:var(--gold-ink);font:700 19px var(--mono)}
.th{display:grid;gap:2px;min-width:0}
.th h3{font:700 21px var(--display);margin:0}
.th .tf{font:500 13.5px var(--mono);color:var(--gold-soft);overflow-wrap:anywhere}
.mchev{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center}
.mchev::before{content:"";width:8px;height:8px;border-right:2.5px solid var(--soft);border-bottom:2.5px solid var(--soft);transform:translateY(-2px) rotate(45deg);transition:transform var(--t-ui) var(--spring-ui)}
details.tool[open] .mchev{background:var(--gold);border-color:var(--gold)}
details.tool[open] .mchev::before{border-color:#15181a;transform:translateY(2px) rotate(-135deg)}
details.tool form{display:grid;gap:10px;padding:14px 16px 16px;max-width:640px}
.tin{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.tin label{display:grid;gap:4px;font-size:14px;font-weight:600;color:var(--muted)}
.tin label.wide{grid-column:1/-1}
.tin input,.tin select{font:16px var(--body);color:var(--ink);background:var(--bg);border:1px solid rgba(255,255,255,.16);border-radius:8px;padding:9px 11px;min-width:0;width:100%}
.tin input:focus-visible,.tin select:focus-visible{outline:2px solid var(--gold);outline-offset:1px}
details.tool form button{font:700 15px var(--display);letter-spacing:.04em;border-radius:var(--r-pill);padding:9px 20px;cursor:pointer;border:0;background:linear-gradient(180deg,#ffd84d,#f5c518 62%,#e0ad00);color:#15181a;margin-right:8px}
details.tool form button.ghost{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.22);color:var(--ink)}
.tout{display:block;font-size:15.5px;line-height:1.5}
.tout:empty{display:none}
.tout .res{font:700 22px var(--display);color:var(--ink)}
.tout .ok{color:#7fe08f;font-weight:700}
.tout .bad{color:var(--warn);font-weight:700}
.tout .work{font:13.5px/1.5 var(--mono);color:var(--muted);white-space:pre-wrap}
.trev{font-size:14.5px;color:var(--green-hi)}
@media (prefers-reduced-motion: reduce){ .mchev::before{transition:none} }
/* FAQ groups */
.faqh{font:700 22px var(--display);margin:26px 0 10px}
.faqh:first-of-type{margin-top:0}
.faqnote{font-size:14.5px;color:var(--muted);padding:0 18px 14px}
/* Study Duas/Prayers, as on the live site */
.navi.duas .star{color:var(--green-hi);font-size:var(--fs-5);width:30px;text-align:center}
dialog.duas{border:none;padding:0;width:min(640px,calc(100vw - 24px));max-height:calc(100dvh - 40px);border-radius:16px;background:var(--bg);color:var(--ink);box-shadow:0 24px 70px rgba(0,0,0,.7)}
dialog.duas::backdrop{background:rgba(0,0,0,.65)}
.duas-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--panel)}
.duas-head h2{font:700 24px var(--display)}
.duas-head button{border:1px solid var(--line);background:var(--bg);width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:var(--fs-4)}
.duas-body{padding:6px 20px 22px}
.duas-body h3{font:700 20px var(--display);color:var(--gold-soft);margin:20px 0 10px}
.duas-body .dua{padding:14px 16px;border-radius:12px;background:var(--panel);border:1px solid var(--line);margin-bottom:10px}
.duas-body .ar{font-size:24px;line-height:1.8;text-align:right;margin:0 0 6px;color:#fff}
.duas-body .tr{font-style:italic;color:var(--green-hi);margin:0 0 4px}
.duas-body .en{color:var(--soft);margin:0}
.duas-body p{color:var(--soft);margin:0 0 10px}
/* footer */
.foot{padding:26px 36px 120px;color:var(--muted);font-size:14.5px;border-top:1px solid var(--line);margin-top:40px}
.foot a{color:var(--soft)}
@media (max-width:900px){ .foot{padding:22px 16px 120px} }
.page{padding-bottom:20px}
/* Ask Sparky extras, as on the live site */
.sp-mic{border:1px solid var(--line);width:44px;height:44px;border-radius:50%;cursor:pointer;font-size:var(--fs-5);flex:none;background:var(--bg)}
.sp-opts{display:flex;justify-content:space-between;gap:10px;margin-top:6px;font-size:var(--fs-1);color:var(--muted)}
.sp-opts label{display:inline-flex;gap:5px;align-items:center;cursor:pointer;flex:none}
.sp-opts span{text-align:right}


.lcard.empty{cursor:default}
.lcard.empty:hover{transform:none;border-color:var(--line)}
.lthumb .lbadge{position:absolute;left:50%;top:50%;width:58px;height:58px;margin:-29px 0 0 -29px;opacity:.45}
.lthumb .lsoon{position:absolute;right:10px;bottom:10px;font:700 12px var(--display);letter-spacing:.08em;text-transform:uppercase;background:rgba(0,0,0,.75);color:var(--gold-soft);border-radius:var(--r-sm);padding:3px 8px;line-height:1.2}
.chipbtn.off{opacity:.45;pointer-events:none}


/* Home, under the hero: what's new from Sparky, and where to follow */
.latest{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:20px;padding:6px 36px 30px;max-width:1120px}
@media (max-width:1000px){ .latest{grid-template-columns:1fr} }
@media (max-width:900px){ .latest{padding:6px 16px 24px} }
.latest h2{font:700 24px var(--display);margin:0 0 12px;display:flex;align-items:center;gap:10px}
.live-dot{width:10px;height:10px;border-radius:50%;background:#ff3b30;box-shadow:0 0 0 0 rgba(255,59,48,.6);animation:livepulse 1.8s ease-out infinite}
@keyframes livepulse{70%,100%{box-shadow:0 0 0 10px rgba(255,59,48,0)}}
.feature{display:grid;text-decoration:none;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:transform var(--t-ui) var(--spring-ui),border-color .18s}
.feature:hover{transform:translateY(-3px);border-color:var(--gold)}
.feature .lthumb{aspect-ratio:16/9}
.feature .today{position:absolute;left:12px;top:12px;font:700 13px var(--display);letter-spacing:.08em;text-transform:uppercase;background:#ff3b30;color:#fff;border-radius:var(--r-sm);padding:4px 10px;line-height:1.2}
.feature .fbody{padding:14px 18px 18px;display:grid;gap:6px}
.feature .fbody b{font:700 23px/1.15 var(--display)}
.feature .fbody span{color:var(--muted);font-size:var(--fs-3)}
.feature .fbody .hbtn{justify-self:start;margin-top:6px;padding:10px 20px}
.feature .fbody span.hbtn{color:#15181a;font-size:var(--fs-4)}
.recent{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:10px}
.recent a{display:grid;grid-template-columns:132px minmax(0,1fr);gap:12px;align-items:center;text-decoration:none;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:8px;transition:border-color .18s}
.recent a:hover{border-color:var(--gold)}
.recent img{width:132px;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:8px;display:block}
.recent a > span{font-size:inherit;color:inherit}
.recent b{font:700 16.5px/1.2 var(--display);display:block}
.recent span{font-size:13.5px;color:var(--muted)}
.follow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.soc{display:grid;justify-items:center;gap:6px;padding:14px 8px;border-radius:var(--r-lg);text-decoration:none;color:#fff;font:700 15px var(--display);letter-spacing:.03em;border:1px solid var(--line);transition:transform var(--t-ui) var(--spring-ui)}
.soc:hover{transform:translateY(-3px)}
.soc svg{width:30px;height:30px}
.soc small{font:500 12.5px var(--body);color:rgba(255,255,255,.75);letter-spacing:0}
.soc.yt{background:linear-gradient(180deg,#ff3b30,#c4180f)}
.soc.ig{background:linear-gradient(135deg,#f9a03f,#e1306c 50%,#833ab4)}
.soc.tt{background:#111;box-shadow:inset 0 0 0 1px rgba(255,255,255,.12)}
@media (prefers-reduced-motion: reduce){ .live-dot{animation:none} .feature,.soc,.recent a{transition:none} }


/* the logo: option 2, Arc. Lit disc, breathing glow, arcs crackle off the rim, neon name */
.logo svg.arcmark{width:50px;height:50px;margin:-6px -4px -6px -6px;overflow:visible}
.arcmark .disc{fill:url(#discG)}
.arcmark .rim{fill:none;stroke:rgba(0,0,0,.35);stroke-width:10}
.arcmark .shine{fill:url(#shineG)}
.arcmark .bolt{fill:url(#boltG);stroke:#1e2420;stroke-width:12;stroke-linejoin:round;animation:buzz 3.2s ease-in-out infinite}
.arcmark .halo{animation:breathe2 3.2s ease-in-out infinite}
@keyframes breathe2{0%,100%{opacity:.35}50%{opacity:.95}}
@keyframes buzz{50%{filter:brightness(1.15)}}
.arcmark .zap{opacity:0}
.arcmark .zap polyline{fill:none;stroke-linecap:round;stroke-linejoin:round}
.arcmark .zap .zg{stroke:#f5c518;opacity:.75;filter:blur(3px)}
.arcmark .zap .zc{stroke:#fffdf0}
.arcmark .zap.on{animation:zap .38s steps(3,end)}
.arcmark .halo.flash{animation:flash .35s ease-out}
@keyframes flash{0%{opacity:1}100%{opacity:.5}}
@keyframes zap{0%{opacity:1}33%{opacity:.35}66%{opacity:1}100%{opacity:0}}
.arcword b{color:#fff;text-shadow:0 0 10px rgba(245,197,24,.6),0 0 22px rgba(245,197,24,.25);animation:neon 3.2s ease-in-out infinite}
@keyframes neon{50%{text-shadow:0 0 14px rgba(245,197,24,.85),0 0 30px rgba(245,197,24,.4)}}
.topbar .logo svg.arcmark{width:44px;height:44px}
@media (prefers-reduced-motion: reduce){ .arcmark .bolt,.arcmark .halo,.arcword b{animation:none} .arcmark .halo{opacity:.6} }


.socials{display:flex;gap:10px;margin-top:2px}
.sico{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:var(--panel);border:1px solid var(--line);color:var(--soft);transition:transform var(--t-ui) var(--spring-ui),background .18s,color .18s,border-color .18s}
.sico svg{width:22px;height:22px}
.sico:hover{transform:translateY(-3px);color:#fff}
.sico.yt:hover{background:#e1251b;border-color:#e1251b}
.sico.ig:hover{background:linear-gradient(135deg,#f9a03f,#e1306c 50%,#833ab4);border-color:transparent}
.sico.tt:hover{background:#111;border-color:#25f4ee;box-shadow:-2px 0 0 #25f4ee,2px 0 0 #fe2c55}
@media (prefers-reduced-motion: reduce){ .sico{transition:none} }
/* Trustpilot review link under the socials, member home (22 Oct 2026). A plain link, not
   Trustpilot's widget: no third-party script or cookies. Wording stays neutral - never only
   happy members, never anything in return. */
.tplink{display:flex;align-items:center;gap:12px;margin:14px 0;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink);text-decoration:none;transition:border-color .18s}
.tplink svg{width:26px;height:26px;flex:none;color:#00b67a}
.tplink b{display:block;font-size:15px}
.tplink span span{display:block;font-size:13.5px;color:var(--soft)}
.tplink:hover{border-color:#00b67a}
.tplink:focus-visible{outline:2px solid #00b67a;outline-offset:2px}


/* the big live logo, right of the Home hero */
.heroart{position:absolute;right:4%;top:50%;width:min(30vw,420px);aspect-ratio:1;transform:translateY(-50%);z-index:0;pointer-events:none}
.hero-in{position:relative;z-index:1}
.heroart svg{width:100%;height:100%;overflow:visible;animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.heroart .halo{animation:breathe2 3.2s ease-in-out infinite}
.heroart .bolt{animation:buzz 2.4s ease-in-out infinite}
.heroart .ring{fill:none;stroke:#f5c518;stroke-width:3;opacity:.35;stroke-dasharray:6 18;animation:spin 30s linear infinite;transform-origin:235px 235px}
@keyframes spin{to{transform:rotate(360deg)}}

@keyframes artin{from{opacity:0;transform:translateY(-50%) scale(.6)}to{opacity:1;transform:translateY(-50%) scale(1)}}
.hero .hero-bolt{display:none}
@media (max-width:1150px){ .heroart{width:min(34vw,300px);right:2%;opacity:.55} }
@media (max-width:760px){ .heroart{top:150px;right:-30px;width:190px;opacity:.35;transform:none} .intro .heroart{animation:none} }
@media (prefers-reduced-motion: reduce){ .heroart svg,.heroart .halo,.heroart .bolt,.heroart .ring{animation:none} }


/* ===== the seven motions, chosen 12 Oct 2026 ===== */
/* 1 headline switched on by light: a bright edge sweeps across each line */
.hero-h span{position:relative;width:max-content;max-width:100%}
.intro .hero-h span{clip-path:inset(0 100% 0 0);animation:sweep var(--t-soft) var(--spring-soft) forwards}
.intro .hero-h span::after{content:"";position:absolute;top:-4%;bottom:-4%;width:6px;right:0;background:#fffbe0;box-shadow:0 0 18px 6px rgba(245,197,24,.75);border-radius:3px;opacity:0;animation:edge var(--t-soft) linear forwards}
.intro .hero-h span:nth-child(2),.intro .hero-h span:nth-child(2)::after{animation-delay:.28s}
.intro .hero-h span:nth-child(3){animation:sweep var(--t-soft) var(--spring-soft) .56s forwards,sheen 7s ease-in-out 1.4s infinite}
.intro .hero-h span:nth-child(3)::after{animation-delay:.56s}
@keyframes sweep{to{clip-path:inset(0 0 0 0)}}
@keyframes edge{0%{opacity:1;right:100%}80%{opacity:1}100%{opacity:0;right:0}}
/* 2 sparks become the logo (driven from script) */
.heromark .p{fill:#fff6c2}
.heromark .body{transform-origin:235px 235px}
/* 3 sliding marker + magnetic icons (the sidebar is already positioned: sticky on a computer, fixed on a phone) */
#navmark{position:absolute;left:12px;right:12px;height:46px;border-radius:var(--r-md);background:rgba(245,197,24,.11);border-left:3px solid var(--gold);transition:top var(--t-ui) var(--spring-ui),height var(--t-ui) var(--spring-ui),opacity .2s;pointer-events:none;opacity:0}
#navmark.on{opacity:1}
#navmark.snap{transition:none}
.navi{position:relative;z-index:1}
.navi[aria-current="page"]{background:none;border-left-color:transparent;color:#fff}
.navi .ic{transition:transform .25s var(--spring-ui)}
/* 4 icons-only sidebar that opens as you move onto it and folds back when you move off (computer only) */
.foldbtn{display:none}
@media (min-width:901px){
  .foldbtn{display:grid;place-items:center;position:absolute;top:22px;right:10px;width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:var(--panel);color:var(--soft);cursor:pointer;z-index:2;transition:transform var(--t-ui) var(--spring-ui)}
  .foldbtn:hover{color:#fff;border-color:var(--gold)}
  .shell.mini{grid-template-columns:76px minmax(0,1fr)}
  .shell.mini .side{width:76px;z-index:45;padding-inline:10px;transition:width .45s var(--spring-soft) .18s,box-shadow .3s .18s}
  .shell.mini .side:hover,.shell.mini .side:focus-within{width:264px;transition-delay:0s;box-shadow:18px 0 50px rgba(0,0,0,.55)}
  .shell.mini .lb,.shell.mini .arcword,.shell.mini .acc,.shell.mini .navsep{opacity:0;transition:opacity .15s;white-space:nowrap}
  .shell.mini .side:hover .lb,.shell.mini .side:hover .arcword,.shell.mini .side:hover .acc,.shell.mini .side:hover .navsep,
  .shell.mini .side:focus-within .lb,.shell.mini .side:focus-within .arcword,.shell.mini .side:focus-within .acc,.shell.mini .side:focus-within .navsep{opacity:1;transition:opacity .2s .15s}
  .shell.mini .navi{white-space:nowrap;overflow:hidden}
  .shell.mini .foldbtn{transform:rotate(180deg)}
  .shell.mini .side:not(:hover):not(:focus-within) .foldbtn{opacity:0}
}
/* 5 pages slide in when you move between them; opening notes goes straight there */
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);z-index:70;background:#fff;color:#15181a;font:600 15px var(--body);padding:10px 16px;border-radius:var(--r-md);box-shadow:0 10px 30px rgba(0,0,0,.4);animation:pop var(--t-ui) var(--spring-ui) both;max-width:calc(100vw - 32px)}
::view-transition-old(root){animation:vtout .18s ease-in both}
::view-transition-new(root){animation:vtin var(--t-ui) var(--spring-ui) both}
@keyframes vtout{to{opacity:0}}
@keyframes vtin{from{opacity:0;transform:translateY(14px)}}
/* 6 the chart morphs */
.chartcard{padding:18px 20px 24px}
.chartcard .top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center}
.ctitle{font:700 21px var(--display);transition:filter .2s,opacity .2s}
.ctitle.swap{filter:blur(6px);opacity:0}
.csub{color:var(--muted);font-size:var(--fs-3)}
.ctog{display:inline-flex;border:1px solid var(--line);border-radius:var(--r-pill);padding:3px;gap:2px;background:var(--bg)}
.ctog button{font:700 14px var(--display);letter-spacing:.03em;border:0;background:none;color:var(--muted);padding:6px 14px;border-radius:var(--r-pill);cursor:pointer;min-height:34px}
.ctog button[aria-pressed="true"]{background:var(--gold);color:#15181a}
.chart{position:relative;height:210px;margin-top:34px;border-bottom:1px solid rgba(255,255,255,.18)}
.bars{position:absolute;inset:0;display:flex;align-items:flex-end;gap:10px}
.bar{position:relative;flex:1 1 0;min-width:0;height:0;border-radius:8px 8px 0 0;background:linear-gradient(180deg,#6cc27a,#2f8a3c);transition:height var(--t-soft) var(--spring-soft),flex-grow var(--t-soft) var(--spring-soft),background .3s,opacity .3s}
.bar.low{background:linear-gradient(180deg,#ffd84d,#c99a00)}
.bar.gone{flex-grow:.0001;opacity:0}
.bar i{position:absolute;left:0;right:0;top:-24px;text-align:center;font:700 14.5px var(--mono);font-style:normal;color:var(--ink);white-space:nowrap}
.bar u{position:absolute;left:0;right:0;bottom:-24px;text-align:center;font:600 13px var(--body);text-decoration:none;color:var(--muted);white-space:nowrap;overflow:hidden}
.passl{position:absolute;left:0;right:0;border-top:2px dashed rgba(255,255,255,.5);bottom:65%}
.passl span{position:absolute;right:0;top:-22px;font:700 12.5px var(--body);color:var(--soft)}
/* 7 current flows to what you've finished */
.flowcard{padding:18px 16px 8px;margin-bottom:14px}
.flowcard svg{width:100%;height:auto;display:block;overflow:visible}
.flowcard .w0{fill:none;stroke:rgba(255,255,255,.14);stroke-width:6;stroke-linecap:round}
.flowcard .live{fill:none;stroke:#f5c518;stroke-width:6;stroke-linecap:round;transition:stroke-dashoffset 1.2s var(--spring-soft)}
.flowcard .flow{fill:none;stroke:#fff6c2;stroke-width:4;stroke-linecap:round;stroke-dasharray:14 40;animation:runf 1.1s linear infinite}
@keyframes runf{to{stroke-dashoffset:-54}}
.flowcard .node circle{fill:#1d2320;stroke:rgba(255,255,255,.25);stroke-width:3;transition:fill .3s,stroke .3s}
.flowcard .node.lit circle{fill:#f5c518;stroke:#fff6c2}
.flowcard .node text{font:700 15px var(--display);fill:var(--soft);text-anchor:middle}
.flowcard .node .nn{fill:#15181a;font:700 17px var(--display)}
.flowcard .node:not(.lit) .nn{fill:var(--muted)}
.flowcard .node.pop{animation:popn .5s var(--spring-ui)}
@keyframes popn{from{transform:scale(.6)}to{transform:none}}
.flowcard .src{font:700 12px var(--body);fill:var(--muted);letter-spacing:.12em}
@media (max-width:620px){ .flowcard .node text:not(.nn){display:none} }
@media (prefers-reduced-motion: reduce){
  .intro .hero-h span{clip-path:none;animation:none} .intro .hero-h span::after{display:none}
  #navmark,.navi .ic,.shell,.foldbtn,.bar,.flowcard .live{transition:none} .flowcard .flow{animation:none;display:none}
  ::view-transition-old(root),::view-transition-new(root){animation:none}
}

/* tabs, as on the live site: Modules | Masterclasses */
.ttabs{display:flex;gap:6px;border-bottom:2px solid rgba(255,255,255,.14);margin:6px 0 18px;flex-wrap:wrap}
.ttabs button{appearance:none;border:1px solid var(--line);border-bottom:none;background:rgba(255,255,255,.03);color:var(--muted);font:700 19px var(--display);letter-spacing:.02em;padding:10px 18px 9px;border-radius:12px 12px 0 0;cursor:pointer;text-align:left;display:grid;gap:1px}
.ttabs button[aria-selected="true"]{background:var(--panel);color:#fff;border-color:rgba(245,197,24,.5);box-shadow:inset 0 3px 0 var(--gold)}
/* lessons: thumbnails, as on the live site */
.starthere{display:flex;gap:16px;align-items:center;width:100%;text-align:left;cursor:pointer;background:linear-gradient(180deg,rgba(47,138,60,.16),rgba(47,138,60,.05));border:1px solid var(--line);border-left:4px solid var(--green-hi);border-radius:16px;padding:14px;color:inherit;text-decoration:none;margin-bottom:22px}
.starthere:hover{border-color:var(--green-hi)}
.sh-thumb{position:relative;flex:0 0 220px;border-radius:12px;overflow:hidden;line-height:0;background:#0d100e}
.sh-thumb img{width:100%;height:auto;display:block}
.sh-tag{font:700 12px var(--display);letter-spacing:.14em;text-transform:uppercase;color:var(--green-hi)}
.sh-h{display:block;font:700 22px var(--display);margin:4px 0}
.sh-sub{color:var(--muted);font-size:var(--fs-3)}
@media (max-width:620px){ .starthere{flex-direction:column;align-items:stretch} .sh-thumb{flex:auto} }
.lmod{margin-bottom:26px}
.lmod h3{font:700 23px var(--display);display:flex;align-items:baseline;gap:12px;margin-bottom:12px}
.lmod h3 .lnum{color:var(--gold-ink);font-size:30px}
.lgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.lcard{display:grid;text-decoration:none;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform var(--t-ui) var(--spring-ui),border-color .18s}
.lcard:hover{transform:translateY(-3px);border-color:var(--gold)}
.lthumb{position:relative;display:block;aspect-ratio:16/9;background:#0d100e;line-height:0}
.lthumb img{width:100%;height:100%;object-fit:cover;display:block}
.lplay{position:absolute;left:50%;top:50%;width:52px;height:52px;margin:-26px 0 0 -26px;border-radius:50%;background:var(--gold);color:#15181a;display:grid;place-items:center;box-shadow:0 6px 20px rgba(0,0,0,.5);opacity:.92;transition:transform var(--t-ui) var(--spring-ui)}
.lcard:hover .lplay{transform:scale(1.1)}
.ldur{position:absolute;right:10px;bottom:10px;font:700 13px var(--display);letter-spacing:.04em;background:rgba(0,0,0,.75);color:#fff;border-radius:var(--r-sm);padding:3px 8px;line-height:1.2}
.lwatched{position:absolute;left:10px;top:10px;font:700 12.5px var(--display);letter-spacing:.04em;background:var(--green);color:#fff;border-radius:var(--r-sm);padding:3px 8px;line-height:1.2}
.lmeta{padding:12px 14px 2px;font-size:14.5px;color:var(--muted)}
.lmeta b{color:#fff}
.ltitle{padding:0 14px 14px;font:700 18px/1.2 var(--display)}
@media (prefers-reduced-motion: reduce){ .lcard,.lplay{transition:none} }
/* notes: each module rolls down and back up */
details.nmod{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);margin-bottom:10px;overflow:hidden}
details.nmod > summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:2px 14px;align-items:center;padding:14px 18px;min-height:64px}
details.nmod > summary::-webkit-details-marker{display:none}
details.nmod > summary .n{font:700 34px/1 var(--display);color:var(--gold-ink);grid-row:1/span 2}
details.nmod > summary b{font:700 21px var(--display)}
details.nmod > summary .s{color:var(--muted);font-size:14.5px;grid-column:2}
details.nmod > summary .chev{grid-row:1/span 2;grid-column:3;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;transition:transform var(--t-ui) var(--spring-ui)}
details.nmod[open] > summary .chev{transform:rotate(180deg)}
details.nmod[open] > summary{border-bottom:1px solid var(--line)}
details.nmod .parts{padding:12px 18px 16px;margin:0}
@media (prefers-reduced-motion: reduce){ details.nmod > summary .chev{transition:none} }
.soon{font:700 12.5px var(--display);letter-spacing:.08em;text-transform:uppercase;color:var(--gold-soft);border:1px solid rgba(245,197,24,.45);border-radius:var(--r-sm);padding:2px 8px}
.tile .soon{justify-self:start}

/* the scientific calculator, drawn as itself */
.calcard{display:grid;grid-template-columns:150px minmax(0,1fr);gap:22px;align-items:center;width:100%;text-align:left;cursor:pointer;padding:18px 22px;margin-bottom:22px;border-radius:16px;border:1px solid var(--line);background:var(--panel);color:var(--ink);transition:transform var(--t-ui) var(--spring-ui),border-color .18s}
.calcard:hover{transform:translateY(-3px);border-color:var(--gold)}
.calcard svg{width:150px;height:auto;display:block;filter:drop-shadow(0 14px 24px rgba(0,0,0,.5));transition:transform var(--t-ui) var(--spring-ui)}
.calcard:hover svg{transform:rotate(-4deg) scale(1.06)}
.calcard h3{font:700 26px var(--display)}
.calcard p{color:var(--soft);font-size:var(--fs-4);margin-top:6px}
.calcard .tap{display:inline-flex;margin-top:12px;font:700 15px var(--display);letter-spacing:.04em;color:#15181a;background:var(--gold);border-radius:var(--r-pill);padding:8px 18px}
@media (max-width:520px){ .calcard{grid-template-columns:96px minmax(0,1fr);gap:14px;padding:14px} .calcard svg{width:96px} .calcard h3{font-size:var(--fs-6)} }
@media (prefers-reduced-motion: reduce){ .calcard,.calcard svg{transition:none} }

/* ---------- the tour ---------- */
.tourbub{position:fixed;z-index:70;width:min(320px,calc(100vw - 32px));background:#fff;color:#15181a;border-radius:var(--r-lg);padding:16px 16px 14px;box-shadow:0 18px 50px rgba(0,0,0,.5)}
.tourbub b{display:block;font:700 20px var(--display);margin-bottom:4px}
.tourbub p{font-size:15.5px}
.tourbub .tb{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:14px;color:#5b645e}
.tourbub .tb button{border:0;border-radius:var(--r-pill);padding:8px 16px;font:700 15px var(--display);cursor:pointer;background:#f5c518;color:#15181a}
.tourbub .tb .skip{background:none;color:#5b645e;text-decoration:underline;padding:8px 4px}
.tourbub::before{content:"";position:absolute;left:-8px;top:22px;border:8px solid transparent;border-left:0;border-right-color:#fff}
.tourbub.below::before{display:none}
.tourlit{box-shadow:0 0 0 3px var(--gold),0 0 30px rgba(245,197,24,.5)!important;position:relative;z-index:1}

/* ---------- Ask Sparky, as on the live site ---------- */




.sp-panel{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:61;width:min(420px,calc(100vw - 32px));height:min(600px,calc(100dvh - 96px));display:flex;flex-direction:column;background:var(--bg);color:var(--ink);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);box-shadow:0 18px 50px rgba(0,0,0,.6);overflow:hidden;font:15.5px/1.5 var(--body)}
.sp-panel:not([hidden]){animation:pop var(--t-ui) var(--spring-ui) both;transform-origin:100% 100%}
@keyframes pop{from{opacity:0;transform:scale(.88)}to{opacity:1;transform:none}}
dialog.duas[open]{animation:pop var(--t-ui) var(--spring-ui) both;transform-origin:50% 40%}
.sp-head{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--panel);border-bottom:1px solid var(--line)}
.sp-avatar{width:34px;height:34px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-size:var(--fs-5);flex:none}
.sp-title{flex:1;min-width:0}.sp-title b{display:block;font:700 18px var(--display)}.sp-title span{font-size:12.5px;color:var(--muted)}
.sp-x{border:1px solid var(--line);background:var(--bg);width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:var(--fs-4);flex:none}
.sp-log{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.sp-msg{max-width:92%;padding:10px 12px;border-radius:12px;overflow-wrap:anywhere}
.sp-msg p{margin:0 0 6px}.sp-msg p:last-child{margin:0}
.sp-me{align-self:flex-end;background:var(--green);color:#fff;border-bottom-right-radius:4px}
.sp-bot{align-self:flex-start;background:var(--panel);border:1px solid var(--line);border-bottom-left-radius:4px}
.sp-foot{border-top:1px solid var(--line);background:var(--panel);padding:10px}
.sp-row{display:flex;gap:8px;align-items:flex-end}
.sp-in{flex:1;resize:none;min-height:44px;max-height:120px;border:1px solid var(--line);border-radius:var(--r-md);padding:10px 12px;font:inherit;background:var(--bg);color:var(--ink)}
.sp-send{border:none;width:44px;height:44px;border-radius:50%;cursor:pointer;font-size:var(--fs-5);flex:none;background:var(--green);color:#fff}
.sp-note{font-size:var(--fs-1);color:var(--muted);margin-top:6px}
@media (max-width:600px){   }

/* lab bar, not part of the design */
.lab{position:fixed;left:280px;bottom:0;margin-bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:25;display:flex;flex-wrap:wrap;gap:4px;background:#fff;color:#1d2420;border:1px solid #c9cec8;border-radius:12px;padding:6px;font:500 13.5px system-ui,-apple-system,sans-serif;box-shadow:0 6px 24px rgba(0,0,0,.4);max-width:calc(100vw - 460px)}
.lab button{font:600 13.5px system-ui,-apple-system,sans-serif;border:0;background:none;color:#1d2420;padding:7px 10px;border-radius:8px;cursor:pointer}
.lab button[aria-pressed="true"]{background:#1d2420;color:#fff}
.lab .sep{width:1px;background:#d6dad4;margin-inline:2px}
@media (max-width:900px){ .lab{left:12px;right:84px;max-width:none} }

/* The legal footer: all six pages, as the live site has on every page.

   No drawn separators between them. A wrapping list cannot suppress a `li+li::before` when
   the item happens to land first on a new line, and at 375px "Contact" wrapped with a stray
   divider in front of it. Spacing does the separating instead. 16 Oct 2026. */
.foot .legal{list-style:none;display:flex;flex-wrap:wrap;
  gap:6px 20px;margin:0 0 10px;padding:0}
.foot .legal a{color:var(--soft);text-decoration:none;
  border-bottom:1px solid transparent;padding-bottom:1px}
.foot .legal a:hover,.foot .legal a:focus-visible{color:var(--ink);border-bottom-color:var(--line)}
.foot .copy{margin:0}
@media (max-width:520px){.foot .legal{gap:6px 16px;font-size:13px}}

/* ===== the logged-in home: next up, and the one-minute drill =====
   The hero used to carry the sales headline and a paragraph describing the notes, on a page
   a student only reaches after paying. The artwork stays; the content is now the next lesson
   and three questions.

   Everything inside `.hero` takes fixed light-on-dark colours, not the theme tokens. The hero
   is a permanently dark surface - the wires and the mark are drawn dark in both themes - so a
   token that flips turns this text near-black on near-black the moment the viewer's system is
   in light mode. That is the same trap `.chipbtn.read` and the sidebar are already noted for.
   The drill below sits on the normal page surface, so it uses the tokens as usual.
   16 Oct 2026. */
.hero.home{min-height:0}
.hero.home .hero-in{padding:44px 36px 36px;max-width:1080px}
.hgreet{margin:0;color:#b9c2bb;font-size:15px;letter-spacing:.06em;text-transform:uppercase}
.hero-next{font:700 clamp(34px,5vw,58px)/1 var(--display);text-transform:uppercase;
  letter-spacing:-.012em;margin:8px 0 20px;color:#f2f5f1}

.nextcard{display:grid;gap:7px;max-width:640px;padding:22px 24px;border-radius:18px;
  text-decoration:none;color:#f2f5f1;border:1px solid rgba(255,255,255,.14);
  background:linear-gradient(180deg,rgba(47,138,60,.26),rgba(13,16,14,.55));
  backdrop-filter:blur(2px);
  transition:transform var(--t-ui) var(--spring-ui),border-color .2s}
.nextcard:hover,.nextcard:focus-visible{transform:translateY(-2px);border-color:#6cc27a}
.nc-tag{font:600 13px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#f5c518}
.nc-title{font:700 clamp(21px,2.6vw,29px)/1.15 var(--display);color:#f2f5f1}
.nc-topics{color:#ccd4ce;font-size:15px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nc-go{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:8px}
.nc-mins{color:#aab3ad;font-size:14px}

/* spacing, not drawn separators: a wrapping row cannot hide a divider that lands first on
   a new line, and at 375px "0 of 14 parts read" wrapped with one in front of it. Same fix as
   the legal footer. 16 Oct 2026. */
.hstat{display:flex;flex-wrap:wrap;align-items:center;gap:6px 22px;margin:18px 0 0;
  color:#aab3ad;font-size:14.5px}
.hstat a,.hstat .linkish{color:#ccd4ce;text-decoration:none;border:0;background:none;
  padding:0;font:inherit;cursor:pointer;border-bottom:1px solid transparent}
.hstat a:hover,.hstat .linkish:hover{color:#fff;border-bottom-color:rgba(255,255,255,.3)}
.hstat .sep{display:none}

/* the drill is on the page's own surface, so it follows the theme */
.drill{padding:30px 36px 44px;max-width:1080px}
.drill-top{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px;margin-bottom:14px}
.drill-top h2{margin:0;font:700 clamp(22px,2.4vw,28px)/1.1 var(--display);text-transform:uppercase}
.drill-sub{color:var(--muted);font-size:14.5px}
.drill-body{max-width:760px}
.drill-load{color:var(--muted);margin:0}
.dq{padding:20px 22px;border-radius:18px;border:1px solid var(--line);background:var(--panel)}
.dq-n{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;
  font:600 13px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.dq-mod{color:var(--gold-ink,var(--gold))}
.dq h3{margin:10px 0 16px;font:600 clamp(18px,2.1vw,22px)/1.35 var(--body);color:var(--ink)}
.dq-opts{display:grid;gap:8px}
.dq-opt{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;
  min-height:46px;padding:11px 14px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel2);color:var(--ink);font:inherit;font-size:16px;cursor:pointer;
  transition:border-color .15s,background .15s}
.dq-opt b{color:var(--muted);flex:0 0 auto}
.dq-opt:hover{border-color:var(--green-hi)}
.dq-opts.done .dq-opt{cursor:default}
.dq-opts.done .dq-opt:hover{border-color:var(--line)}
.dq-opt.right{border-color:var(--green-hi);background:rgba(47,138,60,.18)}
.dq-opt.right b{color:var(--cgreen,var(--green))}
.dq-opt.wrong{border-color:var(--warn);background:rgba(240,138,100,.12)}
.dq-fb{display:grid;gap:9px;margin-top:14px;padding:14px 16px;border-radius:12px;
  background:var(--panel2);border-left:4px solid var(--green-hi);font-size:15.5px}
.dq-fb b.ok{color:var(--cgreen,var(--green))}
.dq-fb b.no{color:var(--warn)}
.dq-fb span{color:var(--soft);line-height:1.5}
.dq-fb a{color:var(--gold-ink,var(--gold));text-decoration:none;
  border-bottom:1px solid transparent;justify-self:start}
.dq-fb a:hover{border-bottom-color:currentColor}
.dq-next{justify-self:start;margin-top:4px}
.dq-done{display:grid;gap:10px;justify-items:start}
.dq-score{font:700 clamp(30px,4vw,44px)/1 var(--display);color:var(--gold-ink,var(--gold))}
.dq-done p{margin:0;color:var(--soft)}
.dq-weak a{color:var(--gold-ink,var(--gold));text-decoration:none;border-bottom:1px solid transparent}
.dq-weak a:hover{border-bottom-color:currentColor}
@media (max-width:720px){
  .hero.home .hero-in{padding:32px 16px 26px}
  .drill{padding:24px 16px 36px}
  .hstat{gap:6px 16px}
  .nextcard{max-width:none}
}
@media (prefers-reduced-motion: reduce){ .nextcard{transition:none} }

/* The exam countdown, under the next-up card. Inside the hero, so fixed light-on-dark. */
.examslot{margin-top:16px;max-width:640px}
.xstrip{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;padding:13px 16px;
  border-radius:14px;border:1px solid rgba(255,255,255,.14);background:rgba(13,16,14,.5)}
.xstrip p{margin:0;color:#ccd4ce;font-size:15px;flex:1 1 230px}
.xstrip.set p b{color:#f5c518}
.xbtn{border:1px solid rgba(255,255,255,.22);background:none;color:#f2f5f1;font:600 14px var(--body);
  padding:8px 14px;border-radius:999px;cursor:pointer;text-decoration:none;display:inline-flex;
  align-items:center;transition:border-color .15s,background .15s}
.xbtn:hover,.xbtn:focus-visible{border-color:#6cc27a;background:rgba(47,138,60,.2)}
.xbtn.go{border-color:#6cc27a;color:#f2f5f1}
.xbtn.warn{border-color:rgba(240,138,100,.5);color:#f08a64}
.xbtn.warn:hover{border-color:#f08a64;background:rgba(240,138,100,.14)}
.xpanel{padding:16px;border-radius:14px;border:1px solid rgba(255,255,255,.14);
  background:rgba(13,16,14,.62);display:grid;gap:10px}
.xpanel h3{margin:0;font:700 19px var(--display);text-transform:uppercase;color:#f2f5f1}
.xnote{margin:0;color:#aab3ad;font-size:13.5px}
.xrow{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px}
.xrow label{flex:1 1 220px;color:#ccd4ce;font-size:15px}
.xrow input[type=date]{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  color:#f2f5f1;border-radius:9px;padding:7px 10px;font:inherit;font-size:15px;color-scheme:dark}
.xrow input[type=date]:focus-visible{outline:2px solid #6cc27a;outline-offset:1px}
.xacts{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
@media (max-width:720px){ .examslot{max-width:none} }

/* Skip to content: hidden until a keyboard user tabs to it (accessibility page, 23 Oct 2026) */
.skiplink{position:absolute;left:12px;top:-60px;z-index:10000;background:#ffd84d;color:#14181a;font-weight:700;padding:10px 16px;border-radius:8px;text-decoration:none;transition:top .15s}
.skiplink:focus{top:12px;outline:3px solid #14181a;outline-offset:2px}