:root{
  --ink:#0B1220; --ink-2:#141C2E; --paper:#F7F8FA; --white:#FFFFFF;
  --blue:#1BA1E2; --blue-deep:#0A6FA8; --amber:#F5B400; --mute:#6B7280; --line:rgba(11,18,32,.1);
  --d:"Unbounded",sans-serif; --b:"Inter",system-ui,sans-serif; --m:"JetBrains Mono",monospace;
  --w:1180px; --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--b);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{width:min(var(--w),calc(100% - 48px));margin-inline:auto}
.eyebrow{font-family:var(--m);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--blue)}
h1,h2,h3{font-family:var(--d);line-height:1.06;letter-spacing:-.01em}
h2{font-size:clamp(28px,4vw,46px);font-weight:700}
.lead{font-size:clamp(16px,1.4vw,19px);color:var(--mute);max-width:56ch}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--blue);color:#fff;font-weight:600;padding:15px 26px;border-radius:999px;transition:transform .35s var(--ease),background .3s;border:0;cursor:pointer;font-size:15px;font-family:inherit;-webkit-mask-image:-webkit-radial-gradient(white,black);isolation:isolate;white-space:nowrap;flex-shrink:0}
.btn:hover{background:var(--blue-deep);transform:translateY(-2px)}
.btn svg{transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--ink);color:#fff}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.1s}.rv.d2{transition-delay:.2s}.rv.d3{transition-delay:.3s}

/* NAV */
nav{position:fixed;inset:0 0 auto;z-index:70;padding:16px 0;background:rgba(11,18,32,.0);transition:background .4s,padding .4s,backdrop-filter .4s}
nav.solid{background:rgba(11,18,32,.86);backdrop-filter:blur(14px);padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;min-width:0;flex-shrink:1}
.brand b,.brand small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
.brand svg{flex:none}
.brand b{font-family:var(--d);font-size:15px;font-weight:700;line-height:1.1}
.brand small{display:block;font-family:var(--m);font-size:9px;letter-spacing:.14em;color:var(--blue)}
nav ul{display:flex;gap:28px;list-style:none;font-size:14px;font-weight:500;color:rgba(255,255,255,.8)}
nav ul a{position:relative;padding:4px 0}
nav ul a::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--amber);transition:width .35s var(--ease)}
nav ul a:hover::after{width:100%}
nav .right{display:flex;align-items:center;gap:18px}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px;flex:none;z-index:70}
.burger span{display:block;width:22px;height:2px;background:#fff;margin:5px 0;transition:transform .35s var(--ease),opacity .3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mnav{position:fixed;inset:0;background:rgba(11,18,32,.98);backdrop-filter:blur(16px);z-index:60;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;opacity:0;pointer-events:none;transition:opacity .4s var(--ease)}
.mnav.open{opacity:1;pointer-events:auto}
.mnav a{color:#fff;font-family:var(--d);font-size:26px;font-weight:500;padding:14px 0;opacity:0;transform:translateY(14px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.mnav.open a{opacity:1;transform:none}
.mnav a:nth-child(1){transition-delay:.05s}.mnav a:nth-child(2){transition-delay:.1s}.mnav a:nth-child(3){transition-delay:.15s}.mnav a:nth-child(4){transition-delay:.2s}.mnav a:nth-child(5){transition-delay:.25s}
.mnav .btn{margin-top:18px;opacity:0;transform:translateY(14px);transition:opacity .4s var(--ease) .3s,transform .4s var(--ease) .3s,background .3s}
.mnav.open .btn{opacity:1;transform:none}
body.lock{overflow:hidden}
nav .login{font-size:14px;color:rgba(255,255,255,.75)}
nav .btn{padding:10px 20px;font-size:14px}

/* HERO */
.hero{position:relative;min-height:96svh;display:grid;place-items:end;color:#fff;overflow:hidden;background:var(--ink)}
.hero .bg{position:absolute;inset:0;background:center/cover;transform:scale(1.06);animation:hz 2.2s var(--ease) forwards;filter:saturate(.7)}
@keyframes hz{to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,32,.75),rgba(11,18,32,.55) 45%,rgba(11,18,32,.97))}
.hero .wrap{position:relative;z-index:1;padding:150px 0 68px;display:grid;gap:20px}
.hero .stagger>*{opacity:0;transform:translateY(22px);animation:up .9s var(--ease) forwards}
.hero .stagger>*:nth-child(1){animation-delay:.2s}.hero .stagger>*:nth-child(2){animation-delay:.35s}.hero .stagger>*:nth-child(3){animation-delay:.5s}.hero .stagger>*:nth-child(4){animation-delay:.65s}.hero .stagger>*:nth-child(5){animation-delay:.8s}
@keyframes up{to{opacity:1;transform:none}}
.hero .badge{display:inline-flex;align-items:center;gap:10px;font-family:var(--m);font-size:12px;letter-spacing:.16em;color:var(--amber);width:fit-content}
.hero .badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 0 rgba(245,180,0,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 12px rgba(245,180,0,0)}100%{box-shadow:0 0 0 0 rgba(245,180,0,0)}}
.hero h1{font-size:clamp(38px,7vw,84px);font-weight:900;letter-spacing:-.03em}
.hero h1 span{color:var(--blue)}
.hero .tag{font-size:clamp(16px,1.6vw,20px);color:rgba(255,255,255,.85);max-width:46ch}
.hero .meta{display:flex;flex-wrap:wrap;gap:12px 28px;font-family:var(--m);font-size:13px;color:rgba(255,255,255,.7);letter-spacing:.04em}
.hero .meta b{color:#fff;font-weight:500}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:6px}

/* TRUST */
.trust{background:var(--ink-2);border-top:1px solid rgba(255,255,255,.06)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.trust .it{padding:30px 24px;border-left:1px solid rgba(255,255,255,.08);color:#fff;text-align:center}
.trust .it:first-child{border-left:0}
.trust .n{font-family:var(--d);font-size:26px;font-weight:700;color:var(--blue)}
.trust .l{font-family:var(--m);font-size:11px;letter-spacing:.1em;color:rgba(255,255,255,.6);margin-top:6px;text-transform:uppercase}

section.s{padding:100px 0}
.head{display:grid;gap:12px;margin-bottom:48px}

/* SAMPLE VIDEO */
.sample{background:var(--white)}
.sample .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.player{position:relative;border-radius:22px;overflow:hidden;aspect-ratio:16/9;background:var(--ink);box-shadow:0 40px 80px -30px rgba(11,18,32,.4)}
.player iframe{width:100%;height:100%;border:0}
.sample h2 span{color:var(--blue)}
.sample ul{list-style:none;display:grid;gap:14px;margin-top:24px;font-size:15px}
.sample li{display:flex;gap:12px;align-items:baseline}
.sample li::before{content:"▸";color:var(--blue);font-family:var(--m)}

/* CURRICULUM */
.curric{background:var(--paper)}
.curric .head{grid-template-columns:1fr auto;align-items:end}
.curric h2 span{color:var(--blue)}
.acc{display:grid;gap:14px}
.mod{background:var(--white);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.mod summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:18px;padding:24px 26px;font-family:var(--d);font-weight:700;font-size:18px}
.mod summary::-webkit-details-marker{display:none}
.mod summary .num{font-family:var(--m);font-size:12px;letter-spacing:.14em;color:var(--blue);font-weight:500;flex:none}
.mod summary .plus{margin-left:auto;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;flex:none;transition:transform .4s var(--ease),background .3s}
.mod summary .plus svg{transition:transform .4s var(--ease)}
.mod[open] summary .plus{background:var(--ink);border-color:var(--ink)}
.mod[open] summary .plus svg{transform:rotate(45deg);stroke:#fff}
.mod .body{padding:0 26px 28px;display:grid;gap:16px}
.mod .body p{color:var(--mute);font-size:15px;max-width:70ch}
.mod .body p b{color:var(--ink);font-weight:600}
.mod .body ol,.mod .body ul{padding-left:20px;display:grid;gap:8px;font-size:15px;color:#2B3446}
.mod .body ul.sub{margin-top:-4px;padding-left:36px;list-style:"– "}
.mod .body img{border-radius:14px;margin-top:4px;aspect-ratio:16/9;object-fit:cover;background:var(--paper)}
.mod[open]{border-color:var(--blue)}
.mod .panel{overflow:hidden;height:0;transition:height .45s var(--ease)}
.mod summary{scroll-margin-top:96px}

/* INSTRUCTOR */
.mentor{background:var(--white)}
.mentor .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.mentor .ph{border-radius:26px;overflow:hidden;aspect-ratio:4/4.6;background:#dde3ea}
.mentor .ph img{width:100%;height:100%;object-fit:cover;object-position:left center}
.mentor h2 em{font-style:normal;color:var(--blue)}
.mentor .fact{display:grid;grid-template-columns:auto 1fr;gap:14px 18px;margin-top:30px;padding-top:26px;border-top:1px solid var(--line);font-size:15px}
.mentor .fact span{font-family:var(--m);font-size:12px;color:var(--blue);letter-spacing:.1em;padding-top:3px}

/* OUTCOMES */
.outc{background:var(--ink);color:#fff}
.outc .head h2 span{color:var(--blue)}
.outc .lead{color:rgba(255,255,255,.65)}
.ogrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ocard{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:28px;display:grid;gap:12px}
.ocard .ic{width:42px;height:42px;border-radius:12px;background:var(--blue);display:grid;place-items:center}
.ocard h3{font-size:17px;font-weight:600;font-family:var(--b)}
.ocard p{font-size:14px;color:rgba(255,255,255,.6)}

/* PRICING */
.pricing .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.pricing ul.feat{list-style:none;display:grid;gap:14px;margin-top:28px;font-size:16px}
.pricing ul.feat li{display:flex;gap:14px;align-items:baseline}
.pricing ul.feat li::before{content:"✓";font-family:var(--m);color:var(--blue);font-weight:600}
.plan{background:var(--ink);color:#fff;border-radius:26px;padding:38px;position:relative;overflow:hidden}
.plan::before{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(27,161,226,.5),transparent 70%)}
.plan .kicker{font-family:var(--m);font-size:11px;letter-spacing:.14em;color:var(--amber)}
.plan .amt{font-family:var(--d);font-size:clamp(40px,5vw,58px);font-weight:900;letter-spacing:-.03em;margin-top:10px}
.plan .amt sup{font-size:.4em;vertical-align:top;color:var(--blue)}
.plan .amt small{font-family:var(--b);font-size:15px;font-weight:400;color:rgba(255,255,255,.55)}
.plan .note{font-size:13px;color:rgba(255,255,255,.5);margin-top:6px;font-family:var(--m);letter-spacing:.04em}
.plan .btn{width:100%;justify-content:center;margin-top:26px;padding:17px}
.plan .row{display:flex;justify-content:space-between;font-size:14px;padding:12px 0;border-top:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.75)}

/* FAQ */
.faq{background:var(--paper)}
.faq .acc .mod summary{font-size:16px}

/* CTA BAND */
.band{background:linear-gradient(120deg,var(--blue-deep),var(--blue));color:#fff;padding:56px 0}
.band .wrap{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.band h3{font-size:clamp(20px,2.4vw,30px);font-weight:700;max-width:26ch}
.band p{color:rgba(255,255,255,.85);margin-top:6px;font-size:14px}
.band .btn{background:var(--ink)}
.band .btn:hover{background:#000}

/* STICKY */
.sticky{position:fixed;left:12px;right:12px;bottom:12px;z-index:60;background:var(--ink);color:#fff;border-radius:18px;padding:12px 12px 12px 18px;display:none;justify-content:space-between;align-items:center;gap:12px;box-shadow:0 20px 40px -10px rgba(0,0,0,.5);transform:translateY(120%);transition:transform .5s var(--ease)}
.sticky.show{transform:none}
.sticky small{display:block;font-family:var(--m);font-size:10px;letter-spacing:.12em;color:var(--amber)}
.sticky b{font-family:var(--d);font-size:15px}
.sticky .btn{padding:12px 18px;font-size:14px}
@media(max-width:960px){.sticky{display:flex}}

footer{background:var(--ink);color:#fff;padding:60px 0 28px}
footer .wrap{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:36px}
footer h4{font-family:var(--d);font-size:17px;font-weight:700}
footer h4 span{color:var(--blue)}
footer p,footer li{font-size:14px;color:rgba(255,255,255,.6)}
footer ul{list-style:none;display:grid;gap:8px;margin-top:14px}
footer .lbl{font-family:var(--m);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
footer .bot{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12px;color:rgba(255,255,255,.4);font-family:var(--m)}

@media(max-width:960px){
  nav ul{display:none}
  .burger{display:block}
  nav .login{display:none}
  nav .right .btn{display:none}
  .trust .wrap{grid-template-columns:1fr 1fr}
  .trust .it:nth-child(3){border-left:0}
  .sample .wrap,.mentor .wrap,.pricing .wrap{grid-template-columns:1fr}
  .ogrid{grid-template-columns:1fr}
  footer .wrap{grid-template-columns:1fr 1fr;gap:28px}
  section.s{padding:72px 0}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.rv,.hero .stagger>*{opacity:1;transform:none}}

/* APP */
.app main{padding:120px 0 90px;min-height:72vh}
.app main h1{font-size:clamp(26px,3.4vw,40px);font-weight:700;margin-bottom:24px}
.card{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:26px;display:grid;gap:14px;align-content:start}
.card h3{font-size:17px}
.stack{display:grid;gap:22px}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.form{display:grid;gap:14px;max-width:460px}
.form.wide{max-width:none}
label{display:grid;gap:6px;font-size:14px;font-weight:500}
input,select,textarea{font:inherit;font-size:15px;padding:11px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);width:100%}
textarea{min-height:160px;font-family:var(--m);font-size:13px;line-height:1.5}
.check{display:flex;align-items:center;gap:10px}.check input{width:auto}
.row2{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
.alert{padding:12px 16px;border-radius:12px;background:#FEF3C7;color:#78350F;font-size:14px}
.alert.ok{background:#DCFCE7;color:#14532D}
.muted{color:var(--mute);font-size:14px}
.mono{font-family:var(--m);font-size:13px;word-break:break-all}
.scroll{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
.tbl{width:100%;border-collapse:collapse;font-size:14px;background:#fff}
.tbl th,.tbl td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-family:var(--m);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--mute);font-weight:500}
.tbl form{display:inline}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.tabs a{padding:8px 16px;border-radius:999px;border:1px solid var(--line);font-size:14px;background:#fff}
.tabs a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.sm{padding:8px 14px;font-size:13px}
.btn.red{background:#B91C1C}
.linkbtn{background:none;border:0;color:inherit;font:inherit;cursor:pointer;padding:0;text-decoration:underline}
.flag{color:#B91C1C;font-weight:600}
.ccard{background:var(--white);border:1px solid var(--line);border-radius:20px;overflow:hidden;display:grid;transition:transform .35s var(--ease),box-shadow .35s}
.ccard:hover{transform:translateY(-4px);box-shadow:0 30px 60px -30px rgba(11,18,32,.35)}
.ccard img{aspect-ratio:16/9;object-fit:cover;width:100%;background:var(--ink)}
.ccard div{padding:22px;display:grid;gap:8px}
.ccard h3{font-size:18px}
.mod .body ul.lessons{list-style:none;padding:0}
.mod .body ul.lessons li::before{content:"▸ ";color:var(--blue);font-family:var(--m)}
.learn{display:grid;grid-template-columns:1fr 360px;gap:28px;align-items:start}
.learn .mod summary{font-size:15px;padding:18px 20px}
.learn .mod .body{padding:0 20px 18px;gap:4px}
.learn .mod .body a{display:block;padding:7px 0;font-size:14px}
.learn .mod .body a.on{color:var(--blue);font-weight:600}
.wm{position:absolute;top:8%;left:6%;pointer-events:none;color:rgba(255,255,255,.4);font:12px var(--m);z-index:2;white-space:nowrap;transition:top 1.5s,left 1.5s;text-shadow:0 1px 2px rgba(0,0,0,.6)}
#qr{background:#fff;padding:10px;width:fit-content;border-radius:12px;border:1px solid var(--line)}
@media(max-width:960px){.learn{grid-template-columns:1fr}.app main{padding-top:100px}}