/* ============================================================
   Tavio shared design system
   Tokens stay identical to the original palette — this file only
   adds structure + motion, it does not restyle the brand.
   ============================================================ */
:root{
  --ink:#132018;
  --muted:#6d756f;
  --lime:#d6f25c;
  --lime-soft:#eef7cf;
  --paper:#f6f5ef;
  --paper-2:#edeee1;
  --line:#dfe1d8;
  --dark:#18251d;
  --white:#fff;
  --ink-a06:rgba(19,32,24,.06);
  --ink-a12:rgba(19,32,24,.12);
  --shadow-soft:0 10px 30px rgba(24,37,29,.08);
  --shadow-lift:0 20px 40px rgba(24,37,29,.14);
  --ease:cubic-bezier(.22,.68,0,1);
}
html{scroll-behavior:smooth}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
button{font:inherit}
.wrap{max-width:1160px;margin:auto;padding:0 24px}

/* ---------- nav ---------- */
.site-nav{position:sticky;top:0;z-index:40;background:var(--paper);border-bottom:1px solid transparent;transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.site-nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;padding-bottom:24px;transition:padding .3s var(--ease)}
.site-nav.scrolled{background:rgba(246,245,239,.86);backdrop-filter:blur(10px) saturate(1.4);-webkit-backdrop-filter:blur(10px) saturate(1.4);border-color:var(--line);box-shadow:0 6px 24px rgba(24,37,29,.05)}
.site-nav.scrolled .wrap{padding-top:14px;padding-bottom:14px}
.brand{font-size:30px;font-weight:850;letter-spacing:-1.3px;text-decoration:none;color:var(--ink);display:inline-flex;align-items:center}
.brand i{font-style:normal;background:var(--lime);border-radius:50%;display:inline-grid;place-items:center;width:33px;height:33px;margin-right:8px;transition:transform .5s var(--ease)}
.brand i svg{width:56%;height:56%;display:block}
.brand:hover i{transform:rotate(50deg)}
.nav-right{display:flex;gap:28px;align-items:center}
.text-btn{background:none;border:0;color:var(--ink);font-weight:700;font-size:14px;text-decoration:none;cursor:pointer;position:relative;padding:2px 0}
.text-btn::after{content:"";position:absolute;left:0;right:100%;bottom:-4px;height:2px;background:var(--ink);transition:right .32s var(--ease)}
.text-btn:hover::after{right:0}

/* ---------- buttons ---------- */
.main-btn{background:var(--dark);color:#fff;border-radius:999px;padding:12px 20px;font-weight:750;font-size:14px;border:0;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.main-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.main-btn:active{transform:translateY(0)}
.main-btn.lime{background:var(--lime);color:var(--ink)}
.main-btn.lime:hover{box-shadow:0 20px 44px rgba(214,242,92,.4)}
.main-btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink-a12);box-shadow:none}
.main-btn.ghost:hover{border-color:var(--ink);box-shadow:none;background:var(--ink-a06)}
.main-btn.on-dark{background:var(--lime);color:var(--ink)}
.main-btn.ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.28)}
.main-btn.ghost.on-dark:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:13px}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.site-footer a{margin-left:15px;text-decoration:none;color:var(--muted);transition:color .2s}
.site-footer a:hover{color:var(--ink)}

/* ---------- labels ---------- */
.eyebrow{display:inline-flex;gap:8px;align-items:center;color:#4c5d44;font-size:12px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase}
.dot{background:#7dae2b;width:8px;height:8px;border-radius:50%;flex:none}
.section-label{color:#627a36;font-size:12px;text-transform:uppercase;letter-spacing:1.4px;font-weight:850}

/* ---------- section rhythm ---------- */
.section{padding:88px 0;border-top:1px solid var(--line);scroll-margin-top:90px}
.section.tight{padding:60px 0}
.section-head{max-width:620px;margin-bottom:44px}
.section-head h2{font-size:38px;letter-spacing:-2px;margin:8px 0 12px}
.section-head p{color:var(--muted);font-size:17px;margin:0}
.alt{background:var(--paper-2)}

/* ---------- reveal-on-scroll ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.94);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal-scale.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}.d5{transition-delay:.4s}.d6{transition-delay:.48s}

/* ---------- cards ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-soft);border-color:#cfd4c7}

/* ---------- stats ---------- */
.stat-row{display:flex;gap:36px;flex-wrap:wrap}
.stat b{display:block;font-size:30px;letter-spacing:-1.4px;font-weight:850}
.stat span{font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;font-weight:700}

/* ---------- faq ---------- */
.faq-item{border-bottom:1px solid var(--line);padding:20px 2px}
.faq-item summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:18px;font-weight:750;font-size:16.5px;letter-spacing:-.2px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{width:23px;height:23px;border-radius:50%;background:var(--lime-soft);display:grid;place-items:center;font-size:14px;flex:none;transition:transform .35s var(--ease)}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item p{margin:12px 0 0;color:var(--muted);font-size:15px;max-width:640px}

/* ---------- cta band ---------- */
.cta-band{background:var(--dark);color:#fff;border-radius:22px;padding:66px 46px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff;font-size:38px;letter-spacing:-1.8px;margin:0 0 10px}
.cta-band p{color:#c3cabf;margin:0 0 28px;font-size:16px}
.cta-band .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;position:relative}
.cta-band:before{content:"";position:absolute;width:360px;height:360px;background:var(--lime);opacity:.14;border-radius:50%;top:-180px;right:-110px;filter:blur(2px)}
.cta-band:after{content:"";position:absolute;width:260px;height:260px;background:var(--lime);opacity:.08;border-radius:50%;bottom:-140px;left:-90px}

/* ---------- ripple / tap motif ---------- */
.ripple-wrap{position:relative}
.ripple{position:absolute;border:1.5px solid var(--lime);border-radius:50%;opacity:0;animation:ripple 2.8s var(--ease) infinite;pointer-events:none}
.ripple.r2{animation-delay:.9s}
.ripple.r3{animation-delay:1.8s}
@keyframes ripple{0%{width:14px;height:14px;opacity:.85}100%{width:120px;height:120px;opacity:0}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal,.reveal-scale{opacity:1!important;transform:none!important;transition:none!important}
  .ripple{display:none}
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

@media(max-width:760px){
  .brand{font-size:25px}
  .brand i{width:29px;height:29px;margin-right:6px}
  .nav-right{gap:12px}
  .nav-right .text-btn{display:none}
  .nav-right .text-btn.nav-signin{display:inline-block;white-space:nowrap}
  .nav-right .main-btn{white-space:nowrap;padding:11px 16px;font-size:13px}
  .section{padding:56px 0}
  .section-head h2{font-size:29px;letter-spacing:-1.4px}
  .cta-band{padding:44px 24px;border-radius:18px}
  .cta-band h2{font-size:27px}
  .stat-row{gap:26px}
}