/* ===== Biotecna LP — base compartilhada (tokens + acessibilidade + form + footer) ===== */
:root{
  --amarelo:#FFCC29; --amarelo-deep:#F5C400; --amarelo-dark:#B98F00; --amarelo-tint:#FFF7DE;
  --ink:#0F172A; --body:#334155; --muted:#64748B; --line:#E2E8F0;
  --bg:#FFFFFF; --bg2:#F3F9FC;
  --radius:14px; --radius-lg:20px;
  --sh-sm:0 2px 10px rgba(15,23,42,.06);
  --sh:0 16px 40px -18px rgba(15,23,42,.22);
  --sh-lg:0 30px 60px -24px rgba(15,23,42,.30);
  --t:200ms cubic-bezier(.4,0,.2,1);
  --texto-sobre-amarelo:#0F172A;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px;overflow-x:clip}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--body);
  background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:clip}
h1,h2,h3,h4{font-family:'Outfit',sans-serif;line-height:1.08;letter-spacing:-.02em;color:var(--ink);font-weight:800}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
.wrap{width:min(1180px,91%);margin-inline:auto}
section{position:relative;overflow-x:clip}
.ic{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px;background:var(--ink);color:#fff;padding:12px 18px;z-index:300}
.skip:focus{left:8px;top:8px}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.reveal{opacity:1!important;transform:none!important}}
@supports (animation-timeline:view()){
  .reveal{animation:reveal-in linear both;animation-timeline:view();animation-range:entry 0% cover 30%}
}
@keyframes reveal-in{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;cursor:pointer;
  font-family:'Outfit';font-weight:700;font-size:1rem;padding:16px 30px;border-radius:999px;border:0;
  transition:transform var(--t),box-shadow var(--t),background var(--t);line-height:1;white-space:nowrap}
.btn-acao{background:var(--amarelo);color:var(--texto-sobre-amarelo);box-shadow:0 14px 30px -12px rgba(255,204,41,.7)}
.btn-acao:hover{transform:translateY(-2px);background:var(--amarelo-deep)}
.btn-ghost{background:#fff;color:var(--ink);border:1.6px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);background:#1E293B}

header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;transition:box-shadow var(--t),border-color var(--t)}
header.stuck{box-shadow:var(--sh-sm);border-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:34px;display:block}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links>a:not(.btn){font-weight:600;font-size:.92rem;color:var(--body)}
.nav-links>a:not(.btn):hover{color:var(--ink)}
.menu-btn{display:none;background:none;border:0;cursor:pointer;color:var(--ink);padding:6px}
@media (max-width:860px){
  .nav-links{display:none}
  .menu-btn{display:block}
  .nav-links.open{display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;
    align-items:stretch;background:#fff;padding:20px 4.5%;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--sh)}
}

/* form */
.form{background:#fff;border-radius:var(--radius-lg);padding:32px;box-shadow:var(--sh-lg);border:1px solid var(--line)}
.form h3{font-size:1.3rem;margin-bottom:6px}
.form .fsub{color:var(--muted);font-size:.9rem;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:.82rem;margin-bottom:6px;color:var(--ink);font-family:'Outfit'}
.field input,.field select{width:100%;padding:14px 16px;border:1.6px solid var(--line);border-radius:11px;
  font-family:inherit;font-size:1rem;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 4px rgba(15,23,42,.06)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.79rem;color:var(--muted);margin:6px 0 18px;cursor:pointer}
.consent input{margin-top:3px;cursor:pointer;accent-color:var(--ink);width:16px;height:16px;flex:0 0 auto}
.consent a{color:var(--ink);font-weight:700;text-decoration:underline}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}
.form-msg{padding:14px 16px;border-radius:11px;font-size:.9rem;font-weight:500;display:none;margin-top:14px}
.form-msg.ok{display:flex;gap:9px;align-items:center;background:#EAFBF1;color:#0C6B3E;border:1px solid #B7EED0}
.form-msg.err{display:flex;gap:9px;align-items:center;background:#FEF1F1;color:#B3261E;border:1px solid #F6C9C6}
.form .btn{width:100%}

/* footer */
footer{background:var(--ink);color:#B7C0D0;padding:60px 0 26px;font-size:.9rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;margin-bottom:40px}
footer h4{color:#fff;font-family:'Outfit';font-size:.98rem;margin-bottom:15px}
footer a{color:#B7C0D0}
footer a:hover{color:var(--amarelo)}
.foot-links{display:grid;gap:9px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand img{height:28px}
.foot-contact{display:grid;gap:11px}
.foot-contact a,.foot-contact span{display:flex;gap:9px;align-items:flex-start;font-size:.86rem}
.foot-contact .ic{width:16px;height:16px;color:var(--amarelo);margin-top:3px}
.foot-legal{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:.79rem;color:#7C879C}
.disclaimer{font-size:.76rem;color:#6B778C;margin-top:14px;line-height:1.6;max-width:78ch}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* whatsapp float */
.wa{position:fixed;right:20px;bottom:20px;z-index:90;background:#25D366;color:#fff;width:58px;height:58px;
  border-radius:50%;display:grid;place-items:center;border:0;cursor:pointer;box-shadow:0 14px 32px -8px rgba(37,211,102,.7)}
.wa:hover{transform:scale(1.08)}
.wa svg{width:28px;height:28px;fill:currentColor}