:root{
    --bg:#1b1017; --bg2:#231520; --card:#2b1a27; --card2:#352131; --ink:#fff3f6; --ink2:#e3cbd5; --muted:#b096a3; --line:#432a3c;
    --rose:#e0457b; --rose2:#c7336a; --peach:#ffb199; --blush:#f29fb8; --spice:#ff5a36; --gold:#f7c97e;
    --serif: "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
    --sans: system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
    --mono: ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  }
  *{box-sizing:border-box} html{scroll-behavior:smooth}
  body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;overflow-x:clip}
  a{color:inherit}
  .wrap{max-width:1140px;margin:0 auto;padding:0 20px}
  .sr{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

  nav{position:sticky;top:0;z-index:40;background:rgba(27,16,23,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
  nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
  .logo{font:italic 700 24px/1 var(--serif);letter-spacing:-.01em;text-decoration:none;display:flex;align-items:center;gap:10px}
  .logo .mk{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:15px;font-style:normal;background:radial-gradient(circle at 35% 35%,var(--peach),var(--rose) 60%,var(--rose2));box-shadow:0 0 18px rgba(224,69,123,.5)}
  .logo small{font:500 12px var(--sans);font-style:normal;color:var(--muted)}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;text-decoration:none;
    font:800 16px/1 var(--sans);padding:16px 24px;border-radius:10px;background:linear-gradient(135deg,var(--rose),#f0706a);color:#fff;
    box-shadow:0 12px 28px -10px rgba(224,69,123,.75);transition:transform .12s,box-shadow .12s,filter .2s}
  .btn:hover{transform:translateY(-2px);filter:brightness(1.07)}
  .btn:active{transform:translateY(1px)}
  .btn.sm{padding:11px 16px;font-size:14px}
  .btn:focus-visible,input:focus-visible,button:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--gold);outline-offset:3px}

  /* hero */
  .hero{padding:64px 0 90px;position:relative;overflow:hidden;overflow:clip}
  .hero::before{content:"";position:absolute;width:760px;height:760px;right:-260px;top:-300px;border-radius:50%;pointer-events:none;background:radial-gradient(circle,rgba(224,69,123,.26),transparent 62%)}
  .hero::after{content:"";position:absolute;width:560px;height:560px;left:-240px;bottom:-320px;border-radius:50%;pointer-events:none;background:radial-gradient(circle,rgba(255,177,153,.18),transparent 64%)}
  .hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;position:relative;z-index:1}
  .hero .grid>*{min-width:0}
  .tag{display:inline-flex;gap:8px;align-items:center;font:700 13px var(--sans);color:var(--ink);background:var(--card);border:1px solid var(--line);padding:7px 14px;border-radius:8px}
  .tag b{background:var(--rose);color:#fff;border-radius:5px;padding:1px 6px;font-size:11px;letter-spacing:.06em}
  h1{font:italic 700 clamp(44px,6.2vw,80px)/.98 var(--serif);letter-spacing:-.025em;margin:20px 0 20px}
  h1 .q{color:var(--rose);font-style:normal;font-family:var(--sans);font-weight:900;letter-spacing:-.045em}
  .lede{font-size:clamp(18px,2vw,21px);color:var(--ink2);max-width:540px;margin:0 0 28px}
  .signup{display:flex;gap:10px;max-width:520px;flex-wrap:wrap}
  .signup input{flex:1 1 230px;min-width:0;background:var(--card);border:2px solid var(--line);color:var(--ink);font:16px var(--sans);padding:14px 16px;border-radius:10px}
  .signup input::placeholder{color:var(--muted)}
  .signup input:focus{border-color:var(--rose)}
  .micro{font-size:14px;color:var(--ink2);margin-top:14px;display:flex;gap:6px 18px;flex-wrap:wrap}
  .micro span::before{content:"✓ ";color:var(--rose);font-weight:800}

  /* demo: card deck + love note */
  .dk{background:linear-gradient(160deg,#2e1b2a,#1d1119);border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 40px 80px -36px rgba(0,0,0,.9),0 0 0 1px rgba(224,69,123,.08)}
  .dkh{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 2px 14px}
  .dkh b{font:italic 700 20px var(--serif)}
  .dkh span{font:700 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
  .lv{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;background:rgba(0,0,0,.25);border-radius:12px;padding:5px;margin-bottom:14px}
  .lv button{border:0;border-radius:9px;background:transparent;color:var(--ink2);font:800 14px var(--sans);padding:9px 4px;cursor:pointer;transition:background .15s}
  .lv button small{display:block;font:600 10px var(--sans);color:var(--muted);margin-top:2px}
  .lv button:hover{background:rgba(255,255,255,.05)}
  .lv button.on{background:var(--card2);color:#fff;box-shadow:inset 0 0 0 2px var(--c)}
  .card{position:relative;min-height:210px;border-radius:18px;padding:28px 22px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:10px;text-align:center;
    background:radial-gradient(120% 90% at 100% 0%,color-mix(in srgb,var(--c) 38%,transparent),transparent 60%),radial-gradient(90% 80% at 0% 100%,color-mix(in srgb,var(--c) 18%,transparent),transparent 60%),var(--card)}
  .card .k{font:800 11px var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--c)}
  .card p{margin:0;font:italic 600 clamp(20px,2.4vw,24px)/1.35 var(--serif);color:#fff}
  .card.draw{animation:draw .5s cubic-bezier(.2,1.2,.4,1)}
  @keyframes draw{0%{opacity:0;transform:translateX(40px) rotate(6deg) scale(.95)}100%{opacity:1;transform:none}}
  .row{display:flex;gap:8px;margin-top:12px}
  .row .btn{flex:1;padding:13px 10px;font-size:14px}
  .ghost{flex:none;white-space:nowrap;border:1px solid var(--rose);background:transparent;color:var(--blush);border-radius:10px;padding:0 14px;font:800 14px var(--sans);cursor:pointer}
  .ghost:hover{background:rgba(224,69,123,.12)}
  .ghost:disabled{opacity:.4;cursor:default}
  .notes{margin-top:14px;background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:14px;padding:12px;min-height:90px;display:flex;flex-direction:column;gap:8px}
  .notes h4{margin:0;font:700 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);display:flex;justify-content:space-between}
  .bub{align-self:flex-end;max-width:88%;background:color-mix(in srgb,var(--rose) 22%,var(--card));border-radius:14px 14px 4px 14px;padding:9px 12px;font:italic 15px/1.4 var(--serif);animation:pop .45s cubic-bezier(.2,1.4,.4,1)}
  .bub.them{align-self:flex-start;background:var(--card2);border-radius:14px 14px 14px 4px}
  .bub small{display:block;font:600 11px var(--sans);font-style:normal;color:var(--muted);margin-top:3px}
  @keyframes pop{from{opacity:0;transform:translateY(8px) scale(.96)}to{opacity:1;transform:none}}
  .dknote{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}

  section{padding:92px 0}
  .kicker{font:800 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--rose);margin-bottom:12px}
  h2{font:italic 700 clamp(34px,4.6vw,56px)/1.04 var(--serif);letter-spacing:-.02em;margin:0 0 16px}
  h2 em{font-style:normal;font-family:var(--sans);font-weight:900;letter-spacing:-.04em;color:var(--rose)}
  .sub{color:var(--ink2);font-size:19px;max-width:660px;margin:0}
  .center{text-align:center}.center .sub{margin:0 auto}

  .for{padding:26px 0 30px;border-block:1px solid var(--line);background:var(--bg2)}
  .for .wrap{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:center}
  .for b{font:800 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-right:6px}
  .chip{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 14px;font:600 15px var(--sans);color:var(--ink2)}

  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px}
  .sc{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;text-align:center}
  .sc b{display:block;font:italic 700 44px/1 var(--serif);color:var(--peach);margin-bottom:6px}
  .sc span{color:var(--muted);font-size:15px}

  .feats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:48px}
  .fc{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;position:relative;transition:border-color .2s}
  .fc:hover{border-color:rgba(224,69,123,.45)}
  .fc .ic{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:23px;margin-bottom:16px;background:linear-gradient(135deg,var(--rose),var(--peach))}
  .fc h3{margin:0 0 8px;font:800 20px/1.2 var(--sans);letter-spacing:-.02em}
  .fc p{margin:0;color:var(--ink2);font-size:16px}

  .how{background:var(--bg2);border-block:1px solid var(--line)}
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:52px}
  .st{background:var(--card);border-radius:18px;padding:26px;position:relative;overflow:hidden;border:1px solid var(--line)}
  .st .n{position:absolute;right:-4px;top:-22px;font:italic 700 120px/1 var(--serif);color:rgba(224,69,123,.08)}
  .st .ic{width:44px;height:44px;border-radius:50%;background:var(--rose);display:grid;place-items:center;font-size:20px;margin-bottom:16px}
  .st h3{margin:0 0 6px;font:800 22px/1.2 var(--sans);letter-spacing:-.02em;position:relative}
  .st p{margin:0;color:var(--ink2);font-size:16px;position:relative}

  .levels{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
  .pc{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;border-top:4px solid var(--c)}
  .pc b{display:block;font:800 20px var(--sans);margin-bottom:6px}
  .pc span{color:var(--ink2);font-size:15px}
  .pc em{display:block;margin-top:12px;font:italic 16px/1.4 var(--serif);color:var(--muted)}

  .rules{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
  .rc{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px}
  .rc b{display:block;font:800 17px var(--sans);margin-bottom:4px}
  .rc span{color:var(--muted);font-size:15px}
  .rc .d{display:block;width:12px;height:12px;border-radius:50%;margin-bottom:12px;box-shadow:0 0 0 4px var(--card2)}

  .faq{max-width:780px;margin:44px auto 0}
  details{border-bottom:1px solid var(--line);padding:20px 0}
  summary{cursor:pointer;list-style:none;font:700 19px var(--sans);display:flex;justify-content:space-between;gap:16px}
  summary::-webkit-details-marker{display:none}
  summary::after{content:"+";font:800 24px/1 var(--sans);color:var(--rose);transition:transform .2s;flex:none}
  details[open] summary::after{transform:rotate(45deg)}
  details p{color:var(--ink2);margin:12px 0 0}

  .final{text-align:center;background:radial-gradient(ellipse at 50% 0%,rgba(224,69,123,.35),transparent 60%),linear-gradient(160deg,#2e1b2a,#180d14);border:1px solid var(--line);color:#fff;border-radius:28px;margin:0 20px 40px;padding:96px 20px;position:relative;overflow:hidden}
  .final>*{position:relative}
  .final h2{color:#fff;font-size:clamp(40px,6vw,72px)}
  .final .sub{color:var(--ink2);margin:0 auto}
  .final .signup{margin:32px auto 0;justify-content:center}
  .final .micro{justify-content:center;color:#fff}

  footer{padding:24px 0 100px;color:var(--muted);font-size:14px}
  footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
  footer a{text-decoration:none;margin-left:18px} footer a:hover{color:var(--ink)}
  footer .links a:first-child{margin-left:0}
  .adult{max-width:760px;margin:0 auto 18px;padding:0 20px;text-align:center;font-size:13px;color:var(--muted)}

  .mcta{position:fixed;left:12px;right:12px;bottom:12px;z-index:45;display:none;transform:translateY(140%);transition:transform .3s}
  .mcta.show{transform:none} .mcta .btn{width:100%;padding:17px}

  .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}
  .reveal.on{opacity:1;transform:none}

  @media (max-width:960px){
    .hero .grid{grid-template-columns:1fr}
    .demo{max-width:520px;margin:10px auto 0;width:100%}
    .steps,.levels{grid-template-columns:1fr;max-width:560px;margin-left:auto;margin-right:auto}
    .feats,.rules,.stats{grid-template-columns:1fr 1fr}
    section{padding:64px 0}
    .mcta{display:block}
    nav .btn{display:none}
    .final{margin:0 12px 30px;padding:70px 18px;border-radius:24px}
  }
  @media (max-width:560px){
    .feats,.rules{grid-template-columns:1fr} .signup .btn{width:100%}
    .dk{padding:12px;border-radius:18px}
    .sc b{font-size:34px}
  }
  @media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}html{scroll-behavior:auto}}