/* Layout: dark app-matched landing page. Hero with live quiz phone, big 10K counters, course explorer, feature grid, cause, voices, download. */
:root{
  --ink:#070711;        /* page ground */
  --panel:#101019;      /* cards */
  --panel-2:#1c1c27;    /* raised */
  --line:#262848;
  --text:#eceefb;
  --muted:#9a9cc0;
  --cyan:#2fd0e0;       /* primary accent, from app icons */
  --violet:#9f7bff;
  --gold:#f5d28b;       /* "SOON" chip */
  --good:#3ddc97;
  --bad:#ff6b7a;
  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"DM Sans","Segoe UI",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
body{margin:0}
img{max-width:100%;display:block}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--text);font:400 16px/1.6 var(--body);padding-inline:clamp(16px,4vw,48px);padding-block:0 48px;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;background:radial-gradient(900px 500px at 85% -5%,rgba(139,92,246,.22),transparent 60%),radial-gradient(700px 480px at 0% 30%,rgba(44,201,238,.10),transparent 60%);pointer-events:none;z-index:-1}
a{color:inherit}
.wrap{max-width:1160px;margin-inline:auto}
h1,h2,h3{font-family:var(--display);line-height:1.05;text-wrap:balance;margin:0}
.eyebrow{font:500 12px/1 var(--mono);letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);margin:0 0 16px}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* nav */
nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px;margin-inline:calc(-1*clamp(16px,4vw,48px));padding-inline:clamp(16px,4vw,48px);background:rgba(8,9,18,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.logo{display:flex;align-items:center;gap:10px;font:800 20px var(--display);text-decoration:none;letter-spacing:-.01em}
.logo i{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--violet),var(--cyan));display:grid;place-items:center;font:800 16px var(--display);font-style:normal;color:#fff}
.links{display:flex;gap:26px;font-size:14px;color:var(--muted)}
.links a{text-decoration:none}.links a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;background:var(--cyan);color:#04121a;font:700 15px var(--body);text-decoration:none;border:0;cursor:pointer;white-space:nowrap}
.btn:hover{filter:brightness(1.1)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--cyan)}
@media(max-width:760px){.links{display:none}}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding-block:72px 56px}
.hero h1{font-size:clamp(40px,6.4vw,84px);font-weight:800;letter-spacing:-.035em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lede{margin-top:22px;font-size:18px;color:var(--muted);max-width:50ch}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px}
.pill{padding:7px 14px;border-radius:999px;background:var(--panel-2);border:1px solid var(--line);font:500 13px var(--mono);color:var(--text)}
.pill b{color:var(--cyan);font-weight:500}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding-block:48px 40px}}

/* phone quiz */
.phone{justify-self:center;width:min(340px,100%);border-radius:44px;border:1px solid var(--line);background:#05060d;padding:16px;box-shadow:0 40px 90px -30px rgba(139,92,246,.55),0 0 0 6px rgba(255,255,255,.03)}
.ph-top{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);padding:6px 6px 14px}
.ph-top span.t{border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--text);font:500 13px var(--mono);min-width:56px;text-align:center}
.qcard{border:1px solid rgba(44,201,238,.4);border-radius:24px;padding:16px;background:#080b16}
.qtag{display:inline-block;background:#e6d9ff;color:#2a1a55;font:700 11px var(--mono);letter-spacing:.14em;padding:6px 12px;border-radius:999px}
.bar{height:6px;border-radius:6px;background:var(--panel-2);margin:14px 0}
.bar i{display:block;height:100%;width:100%;border-radius:6px;background:var(--cyan);transition:width 1s linear}
.q{font:500 17px/1.35 var(--display)}
.opts{display:grid;gap:8px;margin-top:12px}
.opt{display:flex;gap:12px;align-items:center;text-align:left;width:100%;padding:11px 12px;border-radius:16px;border:1px solid rgba(44,201,238,.35);background:#080b16;color:var(--text);font:400 14px var(--body);cursor:pointer}
.opt b{width:30px;height:30px;border-radius:9px;background:var(--panel-2);display:grid;place-items:center;font:700 13px var(--body);flex:none}
.opt:hover:not([disabled]){border-color:var(--cyan)}
.opt.ok{border-color:var(--good);background:rgba(61,220,151,.1)}
.opt.no{border-color:var(--bad);background:rgba(255,107,122,.1)}
.opt[disabled]{cursor:default}
.ph-foot{margin-top:12px;font-size:12px;color:var(--muted);text-align:center;min-height:20px}
.ph-foot button{background:none;border:0;color:var(--cyan);cursor:pointer;font:inherit;text-decoration:underline}

/* sections */
section{padding-block:72px}
.sec-h{max-width:720px;margin-bottom:40px}
.sec-h h2{font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.025em}
.sec-h p{margin-top:14px;color:var(--muted);font-size:17px}

/* counters */
.counters{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:28px;background:var(--panel);overflow:hidden}
.counter{padding:34px 28px;border-right:1px solid var(--line)}
.counter:last-child{border:0}
.counter .n{font:800 clamp(40px,5vw,64px)/1 var(--display);letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.counter .n sup{font-size:.5em;color:var(--cyan);vertical-align:top;margin-left:2px}
.counter .l{margin-top:10px;font:500 12px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.counter.new{background:linear-gradient(160deg,rgba(139,92,246,.22),rgba(44,201,238,.08))}
.counter .tag{display:inline-block;margin-top:12px;font:700 10px var(--mono);letter-spacing:.14em;background:var(--gold);color:#3a2d05;padding:3px 9px;border-radius:999px}
@media(max-width:900px){.counters{grid-template-columns:1fr 1fr}.counter:nth-child(2){border-right:0}.counter:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:440px){.counters{grid-template-columns:1fr}.counter{border-right:0;border-bottom:1px solid var(--line)}.counter:last-child{border:0}}

/* explorer */
.tabs{display:inline-flex;gap:4px;padding:4px;border-radius:999px;background:var(--panel);border:1px solid var(--line);margin-bottom:24px}
.tab{border:0;background:none;color:var(--muted);padding:10px 22px;border-radius:999px;font:700 14px var(--body);cursor:pointer}
.tab[aria-selected=true]{background:var(--cyan);color:#04121a}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
.course{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:18px;display:flex;flex-direction:column;gap:6px;min-width:0}
.course .ic{width:38px;height:38px;border-radius:12px;background:var(--panel-2);display:grid;place-items:center;color:var(--cyan);font:800 14px var(--display);margin-bottom:6px}
.course h3{font:700 16px/1.2 var(--display)}
.course small{font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.course:hover{border-color:var(--cyan)}
.note{margin-top:18px;font-size:13px;color:var(--muted)}

/* features */
.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.f{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:24px;min-width:0}
.f.wide{grid-column:span 2;background:linear-gradient(160deg,var(--panel-2),var(--panel))}
.f h3{font:700 20px var(--display);margin-bottom:8px}
.f p{color:var(--muted);font-size:15px}
.f .soon{display:inline-block;margin-left:8px;font:700 10px var(--mono);letter-spacing:.14em;background:var(--gold);color:#3a2d05;padding:3px 9px;border-radius:999px;vertical-align:middle}
.f .big{font:800 44px/1 var(--display);color:var(--cyan);letter-spacing:-.03em;margin-bottom:12px}
@media(max-width:900px){.feat{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.feat{grid-template-columns:1fr}.f.wide{grid-column:auto}}

/* ai */
.ai{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;border:1px solid var(--line);border-radius:32px;padding:clamp(24px,4vw,56px);background:radial-gradient(600px 300px at 100% 0,rgba(44,201,238,.14),transparent 70%),var(--panel)}
.chat{background:#05060d;border:1px solid var(--line);border-radius:22px;padding:18px;display:grid;gap:10px;font-size:14px}
.bub{padding:12px 14px;border-radius:16px;max-width:90%}
.bub.u{background:var(--panel-2);justify-self:end}
.bub.a{background:rgba(44,201,238,.1);border:1px solid rgba(44,201,238,.3)}
.bub.a b{color:var(--cyan);font:500 11px var(--mono);letter-spacing:.14em;display:block;margin-bottom:4px}
@media(max-width:820px){.ai{grid-template-columns:1fr}}

/* cause */
.cause{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cause .f .big{color:var(--good)}
.eq{font:500 14px var(--mono);color:var(--text);margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--panel-2);overflow-x:auto;white-space:nowrap}
@media(max-width:700px){.cause{grid-template-columns:1fr}}

/* voices */
.voices{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.v{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:22px;display:flex;flex-direction:column;gap:14px;min-width:0}
.v p{font-size:15px}
.v footer{margin-top:auto;font-size:13px;color:var(--muted)}
.v footer b{display:block;color:var(--text);font-size:14px}
.rate{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:24px;font:500 14px var(--mono);color:var(--muted)}
.rate b{color:var(--gold);font-size:22px;font-family:var(--display);margin-right:6px}

/* download */
.dl{text-align:center;border-radius:36px;padding:clamp(40px,7vw,88px) 20px;background:linear-gradient(135deg,rgba(139,92,246,.35),rgba(44,201,238,.2)),var(--panel);border:1px solid var(--line)}
.dl h2{font-size:clamp(32px,5vw,60px);font-weight:800;letter-spacing:-.03em;max-width:16ch;margin-inline:auto}
.dl p{margin:16px auto 0;color:var(--muted);max-width:46ch}
.dl .cta{justify-content:center}

footer.site{margin-top:56px;padding-top:28px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
footer.site div{min-width:0}
footer.site a{text-decoration:none}footer.site a:hover{color:var(--text)}
.sel{user-select:all}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ---- real app screenshots ---- */
.shots{display:flex;gap:18px;overflow-x:auto;padding:8px 4px 24px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.shot{flex:0 0 min(240px,70vw);scroll-snap-align:start;margin:0}
.shot .frame{border-radius:32px;border:1px solid var(--line);background:#05060d;padding:8px;box-shadow:0 30px 60px -30px rgba(139,92,246,.5)}
.shot img{border-radius:25px;width:100%;height:auto}
.shot figcaption{margin-top:12px;font:500 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);text-align:center}
.shots::-webkit-scrollbar{height:8px}.shots::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}


/* ---- logo image ---- */
.logo img{width:30px;height:auto;display:block}
.dl img{display:block}

/* ---- counters footer row ---- */
.minis{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:16px;font-size:14px;color:var(--muted)}
.minis b{color:var(--text);font-weight:700}
.minis .asof{margin-left:auto;font:500 12px var(--mono);letter-spacing:.06em}
.counter .n{min-height:1em}

/* ---- demos ---- */
.demo{border:1px solid var(--line);border-radius:28px;background:var(--panel);padding:clamp(18px,3vw,36px);min-height:360px;display:flex;flex-direction:column;gap:18px}
.tabs{flex-wrap:wrap;border-radius:22px}
.d-top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.chip{display:inline-block;padding:5px 12px;border-radius:999px;background:var(--panel-2);border:1px solid var(--line);font:500 12px var(--mono);letter-spacing:.08em;color:var(--cyan)}
.muted{color:var(--muted);font-size:14px}
.fc{display:flex;flex-direction:column;gap:14px;text-align:left;width:100%;min-height:220px;padding:clamp(20px,4vw,40px);border-radius:24px;border:1px solid rgba(47,208,224,.35);background:linear-gradient(160deg,rgba(159,123,255,.16),rgba(7,7,17,.9));color:var(--text);cursor:pointer;font:inherit;justify-content:center}
.fc small{font:500 11px var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.fc p{font:700 clamp(20px,3vw,28px)/1.3 var(--display);max-width:44ch}
.fc .hint{font-size:13px;color:var(--cyan)}
.fc .ans-t{color:var(--good);font-size:clamp(18px,2.6vw,24px);margin-top:4px}
.fc:hover{border-color:var(--cyan)}
.rates{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.rates .muted{flex:1 1 100%}
.rates button,.pick{padding:10px 18px;border-radius:999px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);font:700 14px var(--body);cursor:pointer}
.rates button:hover,.pick:hover{border-color:var(--cyan)}
.picks{display:flex;gap:8px;flex-wrap:wrap}
.pick.on{background:var(--cyan);color:#04121a;border-color:var(--cyan)}
.fin{text-align:center;padding:clamp(24px,6vw,64px) 12px;display:grid;gap:14px;justify-items:center}
.fin h3{font-size:clamp(24px,4vw,36px)}
.fin p{color:var(--muted);max-width:46ch}
.case-t{font-size:clamp(20px,3vw,28px);line-height:1.2}
.vig{border:1px solid var(--line);border-radius:18px;padding:16px 18px;background:var(--panel-2)}
.vig small{font:500 11px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--violet)}
.vig p{margin-top:8px}
.step{border-left:3px solid var(--cyan);padding:4px 0 4px 16px}
.step h4{font:700 16px var(--display);margin:0 0 4px;color:var(--cyan)}
.step p{color:var(--text)}
.step.ans{border-color:var(--good)}.step.ans h4{color:var(--good)}
.qq{font:700 clamp(18px,2.6vw,24px)/1.35 var(--display);max-width:60ch}
.qopts{display:grid;gap:8px}
.qo{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;padding:12px 14px;border-radius:16px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);font:400 15px/1.45 var(--body);cursor:pointer}
.qo b{flex:none;width:28px;height:28px;border-radius:8px;background:var(--ink);display:grid;place-items:center;font:700 13px var(--body)}
.qo span{min-width:0}
.qo em{display:block;font-style:normal;font-size:13px;color:var(--muted);margin-top:4px}
.qo:hover:not([disabled]){border-color:var(--cyan)}
.qo[disabled]{cursor:default;color:var(--text)}
.qo.ok{border-color:var(--good);background:rgba(61,220,151,.1)}
.qo.no{border-color:var(--bad);background:rgba(255,107,122,.1)}
.expl{border-radius:18px;padding:16px 18px;background:var(--panel-2);border:1px solid var(--line)}
.expl h4{margin:0 0 6px;font:700 14px var(--display);color:var(--gold)}
.expl small{display:block;margin-top:8px;color:var(--muted);font-size:12px}
.mn-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.mn{border:1px solid var(--line);border-radius:20px;padding:18px;background:var(--panel-2);display:grid;gap:6px;align-content:start;min-width:0}
.mn h3{font:800 clamp(20px,3vw,26px)/1.15 var(--display);color:var(--gold);overflow-wrap:anywhere}
.mn h4{margin:0;font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.mn p{font-size:14px;color:var(--text)}
.chat.big{padding:clamp(14px,3vw,24px)}
.chat .bub p+p{margin-top:6px}
.dots{display:inline-flex;gap:4px;padding:4px 0}
.dots i{width:7px;height:7px;border-radius:50%;background:var(--cyan);animation:blink 1s infinite}
.dots i:nth-child(2){animation-delay:.15s}.dots i:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}

/* ---- vault ---- */
.vault{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.book{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:20px;padding:14px 16px;background:var(--panel);min-width:0}
.bk-ic{flex:none;width:46px;height:58px;border-radius:8px 12px 12px 8px;background:linear-gradient(160deg,var(--violet),var(--cyan));display:grid;place-items:center;font:800 15px var(--display);color:#071018}
.bk-t{min-width:0;flex:1}
.bk-t h3{font:700 15px/1.3 var(--display)}
.bk-t p{font-size:13px;color:var(--muted);margin-top:2px}
.book .chip{flex:none;font-size:11px}

/* ---- plans ---- */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.plan{position:relative;border:1px solid var(--line);border-radius:26px;padding:26px 22px;background:var(--panel);display:flex;flex-direction:column;gap:12px;min-width:0}
.plan.featured{border-color:var(--cyan);background:linear-gradient(170deg,rgba(47,208,224,.12),var(--panel))}
.plan .rec{position:absolute;top:-12px;left:22px;background:var(--cyan);color:#04121a;font:700 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:4px 12px;border-radius:999px}
.plan h3{font:800 22px var(--display)}
.price b{font:800 38px/1 var(--display);letter-spacing:-.03em}
.price span{color:var(--muted);font-size:14px;margin-left:4px}
.yearly{font-size:14px;color:var(--muted)}
.yearly s{opacity:.7}
.yearly em{font-style:normal;color:var(--good);font-weight:700;margin-left:4px}
.plan ul{margin:6px 0 10px;padding:0;list-style:none;display:grid;gap:8px;font-size:14px;flex:1}
.plan li{padding-left:22px;position:relative}
.plan li::before{content:"";position:absolute;left:2px;top:.55em;width:10px;height:6px;border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(-45deg)}
.plan .btn{justify-content:center}
@media(max-width:1000px){.plans{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.plans{grid-template-columns:1fr}}

/* ---- accessibility and SEO pages ---- */
.skip{position:absolute;left:-999px;top:0;background:var(--cyan);color:#04121a;padding:10px 16px;border-radius:0 0 12px 0;z-index:20;font-weight:700}
.skip:focus{left:0}
.neet{display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center;border:1px solid var(--line);border-radius:32px;padding:clamp(24px,4vw,56px);background:radial-gradient(600px 300px at 0 0,rgba(159,123,255,.18),transparent 70%),var(--panel)}
.neet h2{font-size:clamp(28px,4vw,46px);font-weight:800;letter-spacing:-.025em}
.neet p{margin-top:14px;color:var(--muted);font-size:17px}
.ticks{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.ticks li{padding-left:28px;position:relative}
.ticks li::before,.steps li::before{content:""}
.ticks li::after{content:"";position:absolute;left:3px;top:.5em;width:12px;height:7px;border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(-45deg)}
@media(max-width:820px){.neet{grid-template-columns:1fr}}
.titles{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin-bottom:24px}
.title-card{border:1px solid var(--line);border-radius:24px;padding:24px;background:linear-gradient(160deg,rgba(159,123,255,.14),var(--panel));display:grid;gap:10px;align-content:start;min-width:0}
.title-card h3{font:800 clamp(20px,2.4vw,26px)/1.15 var(--display)}
.title-card p{color:var(--muted);font-size:15px}
.tag{justify-self:start;font:500 11px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--gold);border:1px solid var(--line);border-radius:999px;padding:4px 12px}
.faq{display:grid;gap:10px;max-width:820px}
.faq details{border:1px solid var(--line);border-radius:18px;background:var(--panel);padding:0 20px}
.faq summary{cursor:pointer;padding:18px 0;font:700 17px/1.3 var(--display);list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 0 18px;color:var(--muted)}
.page-hero{padding-block:72px 32px;max-width:820px}
.page-hero h1{font-size:clamp(36px,6vw,64px);font-weight:800;letter-spacing:-.03em}
.page-hero .lede{margin-top:20px;font-size:18px;color:var(--muted)}
.feat.three{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.feat.three{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.feat.three{grid-template-columns:1fr}}
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;gap:12px;max-width:760px}
.steps li{counter-increment:s;border:1px solid var(--line);border-radius:18px;padding:18px 20px 18px 64px;background:var(--panel);position:relative}
.steps li::before{content:counter(s);position:absolute;left:18px;top:16px;width:32px;height:32px;border-radius:50%;background:var(--cyan);color:#04121a;display:grid;place-items:center;font:700 15px var(--body)}
.steps b{color:var(--text)}

/* Floating textbooks */
.textbooks{margin:0 0 36px;padding:28px 18px 20px;border:1px solid var(--line);border-radius:28px;background:radial-gradient(ellipse at 50% 0%,rgba(47,208,224,.12),transparent 65%),var(--panel);text-align:center;overflow:hidden}
.textbooks h3{font:800 clamp(20px,2.6vw,28px)/1.2 var(--display);max-width:720px;margin:6px auto 26px}
.float-row{display:flex;flex-wrap:wrap;justify-content:center;gap:22px 18px;padding-bottom:8px}
.tb{margin:0;width:calc(25% - 18px);max-width:230px;min-width:130px;animation:tbfloat 6s ease-in-out infinite;animation-delay:calc(var(--i)*-.75s);transition:transform .3s}
.tb:nth-child(even){margin-top:18px}
.tb img{display:block;width:100%;height:auto;border-radius:6px;box-shadow:0 18px 36px -12px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.08)}
.tb:hover{animation-play-state:paused;transform:translateY(-8px) scale(1.04)}
@keyframes tbfloat{0%,100%{transform:translateY(0) rotate(-.6deg)}50%{transform:translateY(-12px) rotate(.6deg)}}
@media (prefers-reduced-motion:reduce){.tb{animation:none}}
@media (max-width:640px){.tb{width:calc(50% - 14px);max-width:none;min-width:0}}
.tc-cover{width:min(180px,60%);height:auto;border-radius:6px;box-shadow:0 18px 36px -12px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.08);margin-bottom:6px}