:root{
    --paper:#FBF3F6; --paper-2:#F5E4EC; --ink:#2B2138; --ink-soft:#6B5F7A;
    --lav:#8A5FBF; --pink:#D9698A; --line:#EBD7E2; --white:#FFFDFC;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:'Nunito',sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;}
  h1,h2,h3{font-family:'Baloo 2',sans-serif;font-weight:600;margin:0;color:var(--ink);}
  a{color:inherit;text-decoration:none;}
  .wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
  a:focus-visible, button:focus-visible{outline:2px solid var(--lav);outline-offset:3px;border-radius:4px;}

  header{position:sticky;top:0;z-index:50;background:rgba(251,243,246,0.93);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
  .nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0;}
  .logo{display:flex;align-items:center;gap:10px;font-family:'Baloo 2',sans-serif;font-size:1.24rem;font-weight:700;}
  .logo-mark{width:26px;height:26px;flex-shrink:0;}
  .nav-links{display:flex;align-items:center;gap:32px;list-style:none;margin:0;padding:0;}
  .nav-links a{font-size:0.95rem;color:var(--ink-soft);position:relative;padding-bottom:4px;}
  .nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--pink);transition:width .2s ease;}
  .nav-links a:hover{color:var(--ink);} .nav-links a:hover::after{width:100%;}
  .nav-links a.active{color:var(--ink);font-weight:700;} .nav-links a.active::after{width:100%;}
  .nav-cta{display:flex;align-items:center;gap:20px;}
  .nav-cta .ghost-link{font-size:0.95rem;color:var(--ink-soft);}
  .btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 22px;border-radius:999px;font-size:0.95rem;font-weight:700;border:1px solid transparent;cursor:pointer;}
  .btn-primary{background:var(--lav);color:#fff;}
  .mobile-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px;}
  .mobile-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;}

  .hero{padding:74px 0 20px;text-align:center;}
  .hero h1{font-size:clamp(2.1rem,4.4vw,3rem);max-width:640px;margin:0 auto;}
  .hero p{color:var(--ink-soft);max-width:520px;margin:18px auto 0;}

  section{padding:56px 0;}
  .section-head{max-width:520px;margin:0 auto 34px;text-align:center;}
  .section-head h2{font-size:1.5rem;}
  .section-head p{color:var(--ink-soft);margin-top:8px;font-size:0.95rem;}

  /* chat mock */
  .chat-mock{max-width:420px;margin:0 auto;background:var(--white);border:1px solid var(--line);border-radius:20px;padding:22px;min-height:230px;}
  .bubble{max-width:76%;padding:10px 15px;border-radius:16px;font-size:0.92rem;margin-bottom:10px;opacity:0;transform:translateY(6px);animation:pop-in .35s ease forwards;}
  .bubble.them{background:var(--paper-2);border-bottom-left-radius:4px;}
  .bubble.me{background:var(--lav);color:#fff;margin-left:auto;border-bottom-right-radius:4px;}
  @keyframes pop-in{to{opacity:1;transform:translateY(0);}}
  .typing-dots{display:inline-flex;gap:4px;background:var(--paper-2);padding:10px 14px;border-radius:16px;border-bottom-left-radius:4px;}
  .typing-dots span{width:6px;height:6px;border-radius:50%;background:var(--ink-soft);animation:dot-bounce 1s infinite ease-in-out;}
  .typing-dots span:nth-child(2){animation-delay:.15s;} .typing-dots span:nth-child(3){animation-delay:.3s;}
  @keyframes dot-bounce{0%,80%,100%{transform:translateY(0);opacity:0.5;}40%{transform:translateY(-4px);opacity:1;}}

  /* post mock */
  .post-mock{max-width:340px;margin:0 auto;background:var(--white);border:1px solid var(--line);border-radius:20px;overflow:hidden;}
  .post-photo{height:190px;background:linear-gradient(135deg,#E7B7C9,#B79AE0);}
  .post-body{padding:18px;}
  .post-body .who{font-size:0.86rem;font-weight:700;margin-bottom:8px;}
  .post-caption{font-family:'Caveat',cursive;font-size:1.3rem;color:#6B4A75;font-weight:600;min-height:1.6em;}
  .cap-cursor{display:inline-block;width:2px;background:#6B4A75;margin-left:1px;animation:blink 1s step-end infinite;}
  @keyframes blink{50%{opacity:0;}}

  /* lookup mock */
  .lookup-mock{max-width:440px;margin:0 auto;}
  .search-box{display:flex;align-items:center;gap:10px;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:12px 18px;}
  .search-box svg{flex-shrink:0;}
  .search-box input{border:none;background:none;outline:none;font-family:'Nunito';font-size:0.95rem;color:var(--ink);width:100%;}
  .lookup-results{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
  .lookup-row{display:flex;align-items:center;gap:10px;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:0.88rem;opacity:0;transform:translateX(-8px);animation:slide-in .4s ease forwards;}
  @keyframes slide-in{to{opacity:1;transform:translateX(0);}}
  .lookup-row .tag{margin-left:auto;font-size:0.72rem;font-weight:700;color:var(--lav);background:var(--paper-2);padding:3px 9px;border-radius:999px;}

  .three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:60px;}
  .three-col > div{text-align:center;}

  .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease;}
  .reveal.in{opacity:1;transform:translateY(0);}

  .cta{text-align:center;padding:60px 0 90px;}
  .cta h2{font-size:1.7rem;margin-bottom:14px;}
  .cta p{color:var(--ink-soft);margin-bottom:22px;}

  footer{padding:50px 0 40px;border-top:1px solid var(--line);}
  .foot-bottom{display:flex;justify-content:space-between;font-size:0.85rem;color:var(--ink-soft);flex-wrap:wrap;gap:12px;}

  @media (prefers-reduced-motion:reduce){ .reveal{opacity:1;transform:none;transition:none;} .bubble{opacity:1;transform:none;animation:none;} .cap-cursor{animation:none;} .lookup-row{opacity:1;transform:none;animation:none;} }
  @media (max-width:900px){ .three-col{grid-template-columns:1fr;} }
  @media (max-width:760px){ .nav-links,.nav-cta .ghost-link{display:none;} .mobile-toggle{display:block;} }