/* ============ Dr. IR — estilos ============ */
:root{
  --navy:#0B1F3A; --navy-2:#132C50; --navy-3:#1D3B66;
  --green:#16A34A; --green-2:#22C55E; --green-soft:#DCFCE7;
  --ink:#0F172A; --muted:#475569; --line:#E2E8F0;
  --bg:#FFFFFF; --bg-alt:#F4F7FB;
  --amber:#F59E0B;
  --radius:18px; --shadow:0 20px 50px -20px rgba(11,31,58,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:Sora,Inter,sans-serif;line-height:1.15;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5vw,3.5rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.5vw,2.5rem);font-weight:700}
h3{font-size:1.15rem;font-weight:700}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.container--narrow{max-width:820px}

/* Botões */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;font-weight:600;text-decoration:none;border-radius:999px;padding:.8rem 1.4rem;border:2px solid transparent;cursor:pointer;font-size:1rem;transition:transform .15s,box-shadow .15s,background .15s;font-family:inherit}
.btn:hover{transform:translateY(-2px)}
.btn--sm{padding:.5rem 1.1rem;font-size:.93rem}
.btn--lg{padding:1rem 1.7rem;font-size:1.05rem}
.btn--block{width:100%}
.btn--green{background:var(--green);color:#fff;box-shadow:0 10px 24px -10px rgba(22,163,74,.7)}
.btn--green:hover{background:#15803D}
.btn--ghost{background:#fff;color:var(--navy);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--navy)}
.btn--outline-light{color:#fff;border-color:rgba(255,255,255,.35)}
.btn--outline-light:hover{border-color:#fff;background:rgba(255,255,255,.06)}

/* Header */
.header{position:sticky;top:0;z-index:50;border-bottom:1px solid transparent;transition:border-color .2s}
.header::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:-1}
.header.scrolled{border-color:var(--line)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-family:Sora,sans-serif;font-size:1.35rem;color:var(--navy);font-weight:600}
.brand strong{color:var(--green);font-weight:800}
.brand--light{color:#fff}
.nav{display:flex;align-items:center;gap:1.8rem}
.nav a{text-decoration:none;font-weight:500;color:var(--muted)}
.nav a:hover{color:var(--navy)}
.nav a.btn{color:#fff}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.menu-btn span{width:24px;height:2.5px;background:var(--navy);border-radius:2px;transition:.2s}

/* Hero */
.hero{padding:70px 0 90px;background:radial-gradient(1000px 500px at 85% 10%,#E8F7EE 0,transparent 60%),radial-gradient(800px 500px at 0% 100%,#EAF1FB 0,transparent 60%)}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.pill{display:inline-block;background:var(--green-soft);color:#166534;font-weight:600;font-size:.88rem;padding:.35rem .9rem;border-radius:999px;margin-bottom:1.2rem}
.hl{color:var(--green)}
.lead{font-size:1.15rem;color:var(--muted);margin:1.3rem 0 2rem;max-width:560px}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px}
.hero__trust{list-style:none;display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:2rem;color:var(--muted);font-size:.93rem}

/* Mockup celular */
.hero__visual{position:relative;display:flex;justify-content:center}
.phone{width:320px;background:#ECE5DD;border-radius:38px;border:10px solid var(--navy);box-shadow:var(--shadow);overflow:hidden}
.phone__top{display:flex;align-items:center;gap:10px;background:var(--navy);color:#fff;padding:12px 14px}
.phone__top small{display:block;font-size:.72rem;opacity:.7;line-height:1}
.phone__top strong{font-size:.95rem}
.chat{display:flex;flex-direction:column;gap:8px;padding:14px 12px 20px;font-size:.84rem;line-height:1.4}
.msg{max-width:84%;padding:8px 11px;border-radius:12px;box-shadow:0 1px 1px rgba(0,0,0,.08);animation:pop .5s both}
.msg--me{align-self:flex-end;background:#D9FDD3;border-top-right-radius:3px}
.msg--bot{align-self:flex-start;background:#fff;border-top-left-radius:3px}
.msg--file{font-weight:500}
.msg--audio{display:flex;align-items:center;gap:8px}
.wave{width:90px;height:16px;background:repeating-linear-gradient(90deg,#4B5563 0 2px,transparent 2px 5px);mask:linear-gradient(90deg,#000 0 100%);opacity:.6;clip-path:polygon(0 40%,10% 10%,20% 60%,30% 0,40% 50%,50% 20%,60% 70%,70% 10%,80% 50%,90% 30%,100% 60%,100% 100%,0 100%)}
.chat .msg:nth-child(1){animation-delay:.2s}.chat .msg:nth-child(2){animation-delay:.6s}.chat .msg:nth-child(3){animation-delay:1s}.chat .msg:nth-child(4){animation-delay:1.4s}.chat .msg:nth-child(5){animation-delay:1.8s}.chat .msg:nth-child(6){animation-delay:2.2s}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.97)}to{opacity:1;transform:none}}

.float-card{position:absolute;background:#fff;border-radius:16px;padding:14px 16px;box-shadow:var(--shadow);min-width:170px}
.float-card small{display:block;color:var(--muted);font-size:.75rem}
.float-card strong{font-family:Sora,sans-serif;font-size:1.15rem;color:var(--navy)}
.float-card--a{left:-40px;top:-10px;animation:float 6s ease-in-out infinite}
.float-card--b{right:-40px;bottom:-10px;animation:float 6s ease-in-out infinite 3s}
.bars{display:flex;align-items:flex-end;gap:6px;height:40px;margin-top:8px}
.bars i{flex:1;height:var(--h);background:linear-gradient(var(--green-2),var(--green));border-radius:4px}
.progress{height:8px;background:var(--line);border-radius:99px;margin:8px 0 6px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--green);border-radius:99px}
@keyframes float{50%{transform:translateY(-10px)}}

/* Seções */
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--navy);color:#fff}
.section__head{text-align:center;max-width:680px;margin:0 auto 56px}
.section__head p{color:var(--muted);font-size:1.08rem;margin-top:.8rem}
.section--dark .section__head p{color:#CBD5E1}
.eyebrow{display:inline-block;font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:var(--green);margin-bottom:.7rem}
.eyebrow--light{color:var(--green-2)}

/* Passos */
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;position:relative}
.step__num{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:var(--navy);color:#fff;font-family:Sora,sans-serif;font-weight:700;font-size:1.2rem;margin-bottom:18px}
.step p{color:var(--muted);margin-top:.5rem}

/* Recursos */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature{background:#fff;border-radius:var(--radius);padding:28px;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature__icon{font-size:1.7rem;width:54px;height:54px;display:grid;place-items:center;background:var(--green-soft);border-radius:14px;margin-bottom:16px}
.feature p{color:var(--muted);margin-top:.4rem}

/* Split IR */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split__text p{color:var(--muted);margin:1rem 0 1.4rem;font-size:1.06rem}
.checklist{list-style:none;display:grid;gap:10px}
.checklist li{padding-left:32px;position:relative}
.checklist li::before{content:"✓";position:absolute;left:0;top:1px;width:22px;height:22px;border-radius:50%;background:var(--green);color:#fff;font-size:.75rem;display:grid;place-items:center;font-weight:700}
.ir-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow)}
.ir-card__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;font-family:Sora,sans-serif;font-size:1.15rem;color:var(--navy)}
.tag{font-family:Inter,sans-serif;font-size:.78rem;font-weight:600;background:#FEF3C7;color:#92400E;padding:.25rem .7rem;border-radius:99px}
.ir-list{list-style:none;display:grid;gap:10px}
.ir-list li{display:flex;justify-content:space-between;gap:12px;padding:14px 16px 14px 44px;border-radius:12px;background:var(--bg-alt);position:relative;font-weight:500}
.ir-list li span{color:var(--muted);font-weight:400;font-size:.92rem;text-align:right}
.ir-list li::before{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:.7rem;font-weight:700;color:#fff}
.ir-list .ok::before{content:"✓";background:var(--green)}
.ir-list .pend::before{content:"!";background:var(--amber)}
.ir-list .wait::before{content:"…";background:#94A3B8}

/* Planos */
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,380px));gap:28px;justify-content:center}
.plan{background:var(--navy-2);border:1px solid var(--navy-3);border-radius:24px;padding:36px 32px;position:relative;display:flex;flex-direction:column}
.plan--featured{background:#fff;color:var(--ink);border:3px solid var(--green);transform:scale(1.03)}
.plan__badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--green);color:#fff;font-weight:700;font-size:.8rem;padding:.3rem .9rem;border-radius:99px;white-space:nowrap}
.plan__desc{color:#CBD5E1;margin:.4rem 0 1.2rem}
.plan--featured .plan__desc{color:var(--muted)}
.plan__price{font-family:Sora,sans-serif;font-weight:800;font-size:3rem;line-height:1}
.plan__price small{font-size:1rem;font-weight:600;opacity:.75;margin:0 3px}
.plan__note{font-size:.88rem;color:var(--muted);margin-top:.4rem}
.plan ul{list-style:none;display:grid;gap:10px;margin:1.6rem 0 2rem;flex:1}
.plan li{padding-left:26px;position:relative}
.plan li::before{content:"✓";position:absolute;left:0;color:var(--green-2);font-weight:700}

/* Segurança */
.security{display:flex;gap:32px;align-items:center;background:linear-gradient(135deg,var(--bg-alt),#fff);border:1px solid var(--line);border-radius:24px;padding:40px}
.security__icon{font-size:2.6rem;width:86px;height:86px;flex:none;display:grid;place-items:center;background:var(--navy);border-radius:24px}
.security h2{font-size:1.6rem}
.security p{color:var(--muted);margin-top:.6rem}

/* FAQ */
.faq{display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 22px}
.faq summary{cursor:pointer;list-style:none;font-weight:600;padding:18px 30px 18px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--green);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--muted);padding-bottom:18px}

/* Cadastro */
.signup{background:var(--navy);color:#fff;border-radius:28px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;box-shadow:var(--shadow)}
.signup__text p{color:#CBD5E1;margin-top:1rem}
.form{display:grid;gap:14px}
.form label{display:grid;gap:6px;font-size:.9rem;font-weight:500;color:#E2E8F0}
.form input,.form select{font:inherit;padding:.8rem 1rem;border-radius:12px;border:1px solid var(--navy-3);background:var(--navy-2);color:#fff;outline:none;width:100%}
.form input::placeholder{color:#7C8DA8}
.form input:focus,.form select:focus{border-color:var(--green-2);box-shadow:0 0 0 3px rgba(34,197,94,.25)}
.form__check{grid-template-columns:auto 1fr !important;align-items:start;gap:10px !important;font-weight:400 !important;font-size:.85rem !important}
.form__check input{width:18px;height:18px;margin-top:3px;accent-color:var(--green)}
.form__check a{color:var(--green-2)}
.form__error{color:#FCA5A5;font-size:.88rem;min-height:1.2em}

/* Footer */
.footer{background:#071528;color:#94A3B8;padding:60px 0 28px}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer p{margin-top:.8rem;max-width:300px}
.footer h4{color:#fff;font-size:.95rem;margin-bottom:.8rem}
.footer__grid a:not(.brand){display:block;text-decoration:none;margin-bottom:.45rem}
.footer__grid a:hover{color:#fff}
.footer__bottom{border-top:1px solid #1E293B;margin-top:40px;padding-top:22px}

/* WhatsApp flutuante */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:60px;height:60px;border-radius:50%;background:#25D366;color:#fff;display:grid;place-items:center;box-shadow:0 10px 30px -6px rgba(37,211,102,.7);transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}

/* Animação ao rolar */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.reveal.visible{opacity:1;transform:none}

/* Páginas legais */
.legal{padding:60px 0 90px}
.legal h1{font-size:2.2rem;margin-bottom:.4rem}
.legal .updated{color:var(--muted);margin-bottom:2rem}
.legal h2{font-size:1.25rem;margin:2rem 0 .6rem}
.legal p,.legal li{color:#334155;margin-bottom:.7rem}
.legal ul{padding-left:1.3rem}
.legal .note{background:#FEF3C7;border:1px solid #FDE68A;color:#78350F;padding:14px 18px;border-radius:12px;margin-bottom:2rem;font-size:.92rem}

/* Responsivo */
@media (max-width:960px){
  .hero__grid,.split,.signup{grid-template-columns:1fr}
  .hero__visual{margin-top:20px}
  .steps,.features{grid-template-columns:1fr 1fr}
  .plans{grid-template-columns:minmax(0,440px)}
  .plan--featured{transform:none;order:-1}
}
@media (max-width:760px){
  .menu-btn{display:flex}
  .nav{position:fixed;inset:72px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 24px;border-bottom:1px solid var(--line);transform:translateY(-8px);opacity:0;visibility:hidden;transition:transform .2s,opacity .2s,visibility .2s;box-shadow:0 20px 30px -20px rgba(11,31,58,.3)}
  .nav.open{transform:none;opacity:1;visibility:visible}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav a.btn{margin-top:14px;border:0}
  .menu-btn.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .menu-btn.open span:nth-child(2){opacity:0}
  .menu-btn.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .section{padding:72px 0}
  .hero{padding:40px 0 70px}
  .steps,.features{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__grid>div:first-child{grid-column:1/-1}
  .signup{padding:32px 22px}
  .security{flex-direction:column;align-items:flex-start;padding:28px}
  .float-card--a{left:0;top:10px}
  .float-card--b{right:0;bottom:20px}
}
@media (max-width:380px){
  .phone{width:280px}
  .float-card{min-width:140px;padding:10px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}
section[id]{scroll-margin-top:72px}