/* Variables */
:root{
  --bg:#f7f8fa; --surface:#fff; --text:#17202a; --muted:#667085;
  --line:#e4e7ec; --accent:#1d4ed8; --accent-dark:#163ea8;
  --soft:#eef4ff; --positive:#087443; --caution:#9a6700;
  --max:1120px; --radius:18px; --shadow:0 12px 35px rgba(16,24,40,.08);
}
/* Layout global */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);line-height:1.65}
a{color:inherit}
.container{width:min(calc(100% - 32px),var(--max));margin:auto}
.narrow{max-width:820px}
.section{padding:82px 0}
.alt{background:#fff}
.section-heading{max-width:760px;margin:0 auto 34px;text-align:center}
.eyebrow{margin:0 0 10px;font-size:.76rem;font-weight:800;letter-spacing:.12em;color:var(--accent)}
h1,h2,h3{line-height:1.15;letter-spacing:-.025em}
h1{font-size:clamp(2.3rem,6vw,4.7rem);margin:0 0 20px}
h2{font-size:clamp(1.8rem,4vw,3rem);margin:0 0 18px}
h3{font-size:1.15rem}
p{margin:0 0 16px}.lead{font-size:1.18rem;color:var(--muted);max-width:690px}
.micro{font-size:.82rem;color:var(--muted)}
/* Header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:68px}
.brand{font-weight:900;text-decoration:none}
.nav{display:flex;gap:22px}.nav a{text-decoration:none;color:var(--muted);font-size:.92rem;font-weight:650}
.nav a:hover{color:var(--text)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px}
/* Hero */
.hero{padding:86px 0;background:linear-gradient(180deg,#fff 0%,#f7f8fa 100%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center}
.cta-row{display:flex;gap:12px;margin:28px 0 12px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:14px 21px;text-decoration:none;font-weight:800;cursor:pointer;transition:transform .18s,box-shadow .18s}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 20px rgba(29,78,216,.2)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
.product-placeholder{min-height:430px;border:2px dashed #cbd5e1;border-radius:24px;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#64748b;font-weight:800;text-align:center;padding:30px}
.product-placeholder small{font-weight:500;margin-top:10px;max-width:260px}
/* Cards */
.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card p,.card li{color:var(--muted)}
.tag{display:inline-block;border-radius:999px;padding:5px 9px;background:#f2f4f7;color:#475467;font-size:.73rem;font-weight:800}
.tag.positive{background:#ecfdf3;color:var(--positive)}.tag.caution{background:#fffaeb;color:var(--caution)}
/* Verdict */
.answer{font-size:1.15rem}
.verdict-box{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.verdict-box>div{padding:22px;border-left:4px solid var(--accent);background:var(--soft);border-radius:0 14px 14px 0}
.verdict-box p{color:var(--muted)}
.notice,.medical{padding:18px 20px;border-radius:14px;background:#fff8e6;border:1px solid #f2dfaa;color:#5c4800;margin-top:24px}
/* Specs */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.spec{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px}
.spec span{display:block;color:var(--muted);font-size:.82rem;margin-bottom:5px}
.spec strong{font-size:1rem}
/* Experience */
.timeline{display:grid;gap:14px}
.timeline>div{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px 22px}
.timeline span{font-weight:850;color:var(--accent);font-size:.85rem}
.timeline p{margin:6px 0 0;color:var(--muted)}
/* Pros/cons */
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:900px;margin:auto}
.pro h3,.con h3{margin-top:0}.pro ul,.con ul{padding-left:20px;margin-bottom:0}
/* Audience */
.audience-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}
/* CTA */
.cta-section{padding:48px 0;background:#111827;color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-inner .eyebrow{color:#93c5fd}.cta-inner p{color:#cbd5e1}
/* FAQ */
.faq{border-top:1px solid var(--line)}
details{background:#fff;border-bottom:1px solid var(--line);padding:20px 4px}
summary{cursor:pointer;font-weight:800;list-style:none}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";float:right;font-size:1.4rem;color:var(--muted)}
details[open] summary:after{content:"−"}
details p{color:var(--muted);margin:14px 30px 0 0}
/* Final CTA */
.final-verdict{padding:85px 0;text-align:center;background:var(--soft)}
.final-verdict p{color:#475467}
.final-verdict .btn{margin-top:10px}
/* Footer */
.footer{padding:38px 0;background:#101828;color:#cbd5e1;font-size:.84rem}
.footer strong{color:#fff}
/* Responsividade */
@media(max-width:900px){
  .hero-grid,.audience-grid,.proscons,.verdict-box{grid-template-columns:1fr}
  .summary-grid{grid-template-columns:1fr 1fr}.spec-grid{grid-template-columns:1fr 1fr}
  .cta-inner{align-items:flex-start;flex-direction:column}
}
@media(max-width:700px){
  .section{padding:62px 0}.hero{padding:60px 0}
  .nav{display:none;position:absolute;left:16px;right:16px;top:62px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:var(--shadow);flex-direction:column;gap:0}
  .nav.open{display:flex}.nav a{padding:11px}
  .menu-toggle{display:block}.summary-grid,.spec-grid{grid-template-columns:1fr}
  .product-placeholder{min-height:300px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}