/* Brain Kit v2: black stage, a brain made of paper notes. */
:root{
  --stage:#000; --paper:#EFE9DE; --paper-2:#E6DFD1; --ink:#16130F; --dim:#9A948A;
  --hi:#E9F55C; --hi-ink:#161A02; --ember:#F2B36B;
  --serif:"Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans:"Inter Tight", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--stage)}
body{margin:0;background:var(--stage);color:var(--paper);font-family:var(--sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;text-rendering:optimizeLegibility}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:400}
h1 em,h2 em{font-family:var(--serif);font-style:italic;color:var(--hi)}

/* top line */
.top{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:calc(14px + env(safe-area-inset-top)) 18px 14px;font-size:13px;font-weight:600;letter-spacing:.02em;pointer-events:none}
.top a,.top span{pointer-events:auto}
.mark{color:var(--paper);text-decoration:none}
.meta{color:var(--dim)}

/* 1. hero */
.hero{position:relative;height:100vh;height:100svh;min-height:560px;overflow:hidden}
.film{position:absolute;inset:0;background:#000}
.film .poster,.film canvas.frames{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 22%;display:block}
.film canvas.frames{opacity:0;transition:opacity .4s ease}
.film canvas.frames.on{opacity:1}
html.js .film .poster{opacity:0;transition:opacity .6s ease}
html.js.ready .film .poster{opacity:1}
.hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(to bottom,rgba(0,0,0,.35) 0%,transparent 14%,transparent 40%,rgba(0,0,0,.72) 68%,#000 100%)}
.hero-copy{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:0 22px calc(28px + env(safe-area-inset-bottom));max-width:640px}
.hero h1{font-size:clamp(44px,12.5vw,96px);line-height:.95;letter-spacing:-.01em;margin:0 0 14px}
.sub{font-size:16px;line-height:1.45;color:rgba(239,233,222,.78);max-width:34ch;margin:0 0 20px}
.ctas{display:flex;gap:10px;flex-wrap:wrap}
.hero .ctas .btn{flex:1 1 0;padding:0 12px}
.cue{display:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 22px;border-radius:999px;font:600 16px/1.1 var(--sans);text-decoration:none;text-align:center;white-space:nowrap;transition:transform .2s ease,background-color .2s ease,box-shadow .3s ease,border-color .2s ease;-webkit-tap-highlight-color:transparent}
.btn:active{transform:scale(.97)}
.btn-buy{background:var(--hi);color:var(--hi-ink);box-shadow:0 0 0 0 rgba(233,245,92,.5)}
.btn-buy:hover{box-shadow:0 0 34px -4px rgba(233,245,92,.55)}
.btn-free{background:transparent;color:var(--paper);border:1.5px solid rgba(239,233,222,.4)}
.btn-free:hover{border-color:var(--paper)}
.btn:focus-visible,.free-link:focus-visible,.mark:focus-visible{outline:2px solid var(--hi);outline-offset:3px}

/* sections */
.gets,.plans{padding:72px 20px;max-width:1080px;margin:0 auto}
.sec-title{font-size:clamp(40px,11vw,72px);line-height:1;margin:0 0 28px}

/* 2. what you get: paper notes */
.notes{display:grid;grid-template-columns:1fr;gap:18px}
.note{position:relative;color:var(--ink);padding:26px 20px 22px;border-radius:3px;
  background:
    radial-gradient(120% 80% at 15% 10%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(90% 70% at 90% 100%,rgba(196,184,160,.35),transparent 70%),
    var(--paper);
  box-shadow:0 18px 40px -18px rgba(0,0,0,.8),0 2px 0 rgba(0,0,0,.25)}
.note:nth-child(odd){transform:rotate(-1.2deg)}
.note:nth-child(even){transform:rotate(1deg)}
.note::before{content:"";position:absolute;top:-10px;left:50%;width:72px;height:22px;transform:translateX(-50%) rotate(-3deg);background:rgba(255,255,240,.45);box-shadow:0 1px 2px rgba(0,0,0,.2)}
.note h3{font-size:27px;line-height:1.05;margin:10px 0 8px}
.note p{font-size:15px;line-height:1.45;margin:0;color:#3B362E}
.pin{display:inline-block;font:700 11px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;padding:5px 8px 4px;border-radius:999px;background:rgba(22,19,15,.08);color:var(--ink)}
.pin-full{background:var(--hi);color:var(--hi-ink)}
.honest{margin:30px 0 0;color:var(--dim);font-family:var(--serif);font-style:italic;font-size:20px;line-height:1.3}

/* 3. free or full */
.cards{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.card{border-radius:18px;padding:20px 14px 18px;display:flex;flex-direction:column;min-width:0}
.card-free{border:1px solid rgba(239,233,222,.22);background:rgba(239,233,222,.04)}
.card-full{background:var(--paper);color:var(--ink)}
.card .plan{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin:0;opacity:.7}
.card .price{font-family:var(--serif);font-size:44px;line-height:1;margin:8px 0 2px}
.card .what{font-size:14px;font-weight:600;margin:0 0 12px}
.card ul{list-style:none;padding:0;margin:0 0 16px;flex:1}
.card li{font-size:13.5px;line-height:1.35;padding:7px 0 7px 16px;position:relative;border-top:1px solid rgba(239,233,222,.12)}
.card-full li{border-top-color:rgba(22,19,15,.12)}
.card li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:7px;border-radius:50%;background:var(--hi)}
.card-full li::before{background:var(--ink)}
.card .btn{width:100%;min-height:46px;padding:0 10px;font-size:15px}
.card-full .btn-buy{background:var(--ink);color:var(--hi)}
.card .tiny{font-size:11.5px;opacity:.6;margin:8px 0 0;text-align:center}
.card-free{grid-column:1/-1}
.card-pro{grid-column:1/-1;background:var(--hi);color:var(--hi-ink);position:relative}
.card-pro .pin-pro{align-self:flex-start;margin:0 0 10px;background:var(--hi-ink);color:var(--hi)}
.card-pro .plan{opacity:.75}
.card-pro li{border-top-color:rgba(22,19,15,.14)}
.card-pro li::before{background:var(--hi-ink)}
.card-pro .btn-buy{background:var(--hi-ink);color:var(--hi)}
@media (min-width:720px){.card-pro ul{columns:2;column-gap:28px}.card-pro li{break-inside:avoid}}

/* 4. close */
.close{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;padding:0}
.close::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(to bottom,#000 0%,transparent 12%,transparent 35%,rgba(0,0,0,.8) 62%,#000 85%)}
.close-copy{position:relative;z-index:2;width:100%;max-width:560px;margin:0 auto;padding:0 22px 40px;text-align:center}
.close h2{font-size:clamp(44px,12vw,84px);line-height:.95;margin:0 0 22px}
.close .btn-buy{width:100%;max-width:420px;min-height:56px;font-size:17px}
.free-link{display:block;margin:14px 0 22px;color:var(--paper);font-size:15px;text-underline-offset:3px}
.fine{list-style:none;padding:0;margin:0 auto;max-width:420px;color:var(--dim);font-size:12.5px;line-height:1.6}
.fine a{color:inherit;text-decoration:underline}

/* footer */
footer{display:flex;flex-direction:column;gap:6px;padding:28px 20px calc(96px + env(safe-area-inset-bottom));color:#7a756c;font-size:12px;text-align:center;border-top:1px solid #1a1a1a}
footer a{color:inherit}

/* sticky buy bar */
.buybar{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 8px 8px 18px;border-radius:999px;background:rgba(20,20,20,.82);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(239,233,222,.14);transform:translateY(140%);transition:transform .45s cubic-bezier(.2,.8,.2,1)}
.buybar.show{transform:none}
.bb-what{font-weight:600;font-size:15px}
.bb-what small{display:block;font-weight:400;font-size:12px;color:var(--dim)}
.buybar .btn{min-height:42px;padding:0 22px}

/* motion: reveals */
html.js .rv{opacity:0;transform:translateY(26px)}
html.js .rv.in{opacity:1;transform:none;transition:opacity .8s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
html.js .note.rv{transform:translateY(40px) rotate(0deg)}
html.js .note.rv.in:nth-child(odd){transform:rotate(-1.2deg)}
html.js .note.rv.in:nth-child(even){transform:rotate(1deg)}
html.js .hero-copy>*{opacity:0;transform:translateY(18px)}
html.js.go .hero-copy>*{opacity:1;transform:none;transition:opacity .9s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
html.js.go .hero-copy>:nth-child(1){transition-delay:.15s}
html.js.go .hero-copy>:nth-child(2){transition-delay:.3s}
html.js.go .hero-copy>:nth-child(3){transition-delay:.45s}

@media (min-width:720px){
  .notes{grid-template-columns:1fr 1fr;gap:26px}
  .plans .sec-title{text-align:center}
  .cards{gap:20px;max-width:760px;margin:0 auto}
  .card{padding:28px 24px 24px}
  .card .price{font-size:56px}
  .card li{font-size:15px}
}
@media (min-width:820px){
  .film{left:50%;right:auto;width:min(56vh,520px);transform:translateX(-50%);
    -webkit-mask-image:radial-gradient(ellipse 50% 50% at 50% 45%,#000 62%,transparent 100%);
            mask-image:radial-gradient(ellipse 50% 50% at 50% 45%,#000 62%,transparent 100%)}
  .hero-copy{margin:0 auto;text-align:center}
  .sub{font-size:17px;margin-left:auto;margin-right:auto}
  .ctas{justify-content:center}
  .hero .ctas .btn{flex:0 0 auto;padding:0 26px}
  .cue{display:block;position:absolute;right:28px;bottom:calc(28px + env(safe-area-inset-bottom));z-index:2;width:1px;height:34px;overflow:hidden;background:rgba(239,233,222,.15)}
  .cue::after{content:"";position:absolute;left:0;top:-34px;width:1px;height:34px;background:var(--paper);animation:cue 1.8s ease-in-out infinite}
  .buybar{left:auto;right:20px;width:340px}
}
@media (min-width:1000px){
  .notes{grid-template-columns:repeat(4,1fr);gap:22px}
  .note h3{font-size:25px}
}
@keyframes cue{to{top:34px}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  html.js .rv,html.js .hero-copy>*{opacity:1;transform:none}
  html.js .note.rv:nth-child(odd){transform:rotate(-1.2deg)}
  html.js .note.rv:nth-child(even){transform:rotate(1deg)}
  html.js .film .poster{opacity:1}
}