/* HairTech v2.0 — direção visual da proposta 1.4.0 (preto/carvão, marfim, dourado), reescrita limpa para produção. */
@font-face{font-family:Montserrat;src:url("/assets/fonts/Montserrat-wght.ttf") format("truetype");font-weight:100 900;font-style:normal;font-display:swap}
:root{--bg:#060605;--bg2:#0e0e0c;--card:#121210;--line:#2c2a24;--line-gold:#4a3d26;--tx:#f5f2ec;--mut:#bdb8ad;--gold:#d2b16b;--gold-2:#e6c987;--serif:Didot,"Bodoni 72","Bodoni MT","Playfair Display",Georgia,"Times New Roman",serif;--sans:Montserrat,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--r:4px;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.7 var(--sans);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.08;margin:0;letter-spacing:-.01em}p{margin:0}
.container{width:min(1200px,calc(100% - 48px));margin-inline:auto}
.skip{position:fixed;left:16px;top:-80px;z-index:99;background:var(--gold);color:#000;padding:12px 18px;font-weight:700}.skip:focus{top:12px}
:focus-visible{outline:2px solid var(--gold-2);outline-offset:4px}
.eyebrow{font-size:11px;letter-spacing:.2em;font-weight:600;color:var(--gold);text-transform:uppercase;display:flex;align-items:center;gap:14px}
.eyebrow:before{content:"";width:28px;height:1px;background:var(--gold)}
.gold{color:var(--gold)}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(6,6,5,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-row{height:80px;display:flex;align-items:center;gap:32px}
.brand img{width:150px;height:auto}
.nav{display:flex;gap:26px;margin-left:auto;font-size:13px;letter-spacing:.02em}.nav a{color:var(--mut);padding-block:10px}.nav a:hover{color:var(--tx)}
.header-cta{margin-left:8px}
.menu{display:none;margin-left:auto}.menu summary{list-style:none;cursor:pointer;border:1px solid var(--line-gold);padding:10px 16px;font-size:13px}.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;left:0;right:0;top:80px;background:#0b0b09;border-bottom:1px solid var(--line-gold);display:grid;padding:8px 24px 20px}.menu nav a{padding:14px 0;border-bottom:1px solid var(--line)}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:14px 24px;border-radius:var(--r);font:600 14px/1.3 var(--sans);letter-spacing:.02em;cursor:pointer;border:1px solid transparent;transition:background .2s,color .2s,border-color .2s}
.btn-gold{background:var(--gold);color:#0a0a08}.btn-gold:hover{background:var(--gold-2)}
.btn-line{border-color:var(--line-gold);color:var(--tx)}.btn-line:hover{border-color:var(--gold);color:var(--gold)}
.btn-sm{min-height:42px;padding:10px 18px;font-size:13px}
.btn svg{width:18px;height:18px;flex:none;fill:currentColor}
/* hero */
.hero{padding:72px 0 40px;background:radial-gradient(900px 500px at 80% 20%,rgba(210,177,107,.08),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(40px,4.9vw,66px);margin:26px 0 0}
.hero .lead{color:var(--mut);font-size:17px;max-width:500px;margin-top:26px}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-fig{margin:0;position:relative}.hero-fig img{border-radius:220px 4px 4px 4px;border:1px solid var(--line-gold);aspect-ratio:4/5;object-fit:cover;object-position:74% 35%;width:100%}
.hero-fig figcaption{font-size:11px;color:#8d887d;margin-top:10px}
.facts{display:flex;flex-wrap:wrap;gap:12px 36px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.facts div{font-size:13px;color:var(--mut)}.facts b{display:block;font:400 24px/1.2 var(--serif);color:var(--tx)}
/* sections */
.section{padding:104px 0;border-top:1px solid var(--line)}
.alt{background:var(--bg2)}
.head{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end;margin-bottom:52px}
.head h2,.h2{font-size:clamp(34px,4.6vw,58px);margin-top:18px}
.head p{color:var(--mut);max-width:520px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-top:1px solid var(--gold);padding:32px 28px;border-radius:var(--r);display:flex;flex-direction:column;gap:14px}
.card h3{font-size:28px}.card p{color:var(--mut);font-size:15px}.card .more{margin-top:auto;color:var(--gold);font-size:13px;font-weight:600;padding-top:8px}
.num{font:400 15px var(--serif);color:var(--gold);letter-spacing:.1em}
.steps .card{border-top-color:var(--line-gold)}
/* doctor */
.doc{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:center}
.doc img{border-radius:var(--r);border:1px solid var(--line-gold);aspect-ratio:4/5;object-fit:cover}
.doc .creds{margin-top:26px;display:grid;gap:10px;font-size:14px;color:var(--mut)}.doc .creds b{color:var(--tx);font-weight:600}
.doc p.txt{color:var(--mut);margin-top:22px}
/* units */
.unit{background:var(--card);border:1px solid var(--line);padding:30px 28px;border-radius:var(--r)}.unit h3{font-size:30px;margin:10px 0}.unit p{color:var(--mut);font-size:14px}
.tag{font-size:10px;letter-spacing:.2em;color:var(--gold);font-weight:600}
/* principles */
.principles li{list-style:none;padding:18px 0;border-bottom:1px solid var(--line);color:var(--mut)}.principles li b{color:var(--tx);display:block;font-weight:600}.principles{padding:0;margin:0}
/* faq */
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px}
details.q{border-bottom:1px solid var(--line);padding:22px 0}details.q summary{cursor:pointer;list-style:none;font-weight:600;display:flex;justify-content:space-between;gap:16px}details.q summary::-webkit-details-marker{display:none}
details.q summary:after{content:"+";color:var(--gold);font-size:22px;line-height:1}details.q[open] summary:after{content:"−"}details.q p{color:var(--mut);margin-top:12px}
/* lead form */
.lead-box{display:grid;grid-template-columns:1fr 1fr;gap:56px;background:var(--card);border:1px solid var(--line-gold);padding:clamp(28px,5vw,64px);border-radius:var(--r)}
.lead-box .h2{margin-bottom:18px}.lead-box>div>p{color:var(--mut)}
form.lead{display:grid;gap:16px}
.lead label{display:grid;gap:8px;font-size:13px;color:#e5dfd3;font-weight:500}
.lead input,.lead select{width:100%;min-height:50px;padding:12px 14px;background:#080807;color:var(--tx);border:1px solid #55472d;border-radius:var(--r);font:15px var(--sans)}
.lead input:focus,.lead select:focus{outline:2px solid var(--gold);outline-offset:1px}
.lead .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.lead .consent{display:flex;gap:12px;align-items:flex-start;font-weight:400;color:var(--mut);font-size:13px;line-height:1.55}.lead .consent input{width:20px;min-height:20px;height:20px;margin-top:2px;accent-color:var(--gold);flex:none}
.lead .consent a{color:var(--gold);text-decoration:underline}
.lead .err{color:#f0a58a;font-size:13px;min-height:1em}
.small{font-size:12px;color:#8d887d;line-height:1.6}
/* footer */
.footer{border-top:1px solid var(--line);padding:64px 0 110px;font-size:14px;color:var(--mut)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}.footer h4{color:var(--tx);font:600 12px var(--sans);letter-spacing:.18em;text-transform:uppercase;margin:0 0 14px}
.footer a:hover{color:var(--gold)}.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.legal{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);font-size:12px;color:#8d887d;display:grid;gap:8px}
/* whatsapp float */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:60px;height:60px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 10px 30px rgba(0,0,0,.45)}
.wa-float svg{width:30px;height:30px;fill:#fff}
/* article / blog / legal */
.page{padding:72px 0 96px}.page .wrap{width:min(760px,calc(100% - 48px));margin-inline:auto}
.page h1{font-size:clamp(36px,5vw,58px);margin:18px 0 22px}.page h2{font-size:30px;margin:44px 0 14px}.page h3{font:600 18px var(--sans);margin:28px 0 10px}
.page p,.page li{color:#d8d3c8;margin-bottom:14px}.page a{color:var(--gold);text-decoration:underline;text-underline-offset:3px}
.page .meta{color:#8d887d;font-size:13px}
.blog-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:40px}
.blog-list a{display:block;background:var(--card);border:1px solid var(--line);padding:24px;border-radius:var(--r);text-decoration:none!important;color:var(--tx)!important}.blog-list a:hover{border-color:var(--gold)}
.blog-list span{display:block;font-size:11px;letter-spacing:.16em;color:var(--gold);text-transform:uppercase;margin-bottom:8px}.blog-list b{font:400 22px/1.2 var(--serif)}
.note{border-left:2px solid var(--gold);background:#11100d;padding:16px 20px;margin:28px 0;font-size:14px;color:var(--mut)}
.cta-article{margin-top:48px;background:var(--card);border:1px solid var(--line-gold);padding:32px;border-radius:var(--r)}
.cta-article h2{margin:0 0 10px!important}
/* responsive */
@media(max-width:980px){.nav,.header-cta{display:none}.menu{display:block}.hero-grid,.head,.doc,.faq-grid,.lead-box{grid-template-columns:1fr}.hero-grid{gap:36px}.hero-fig{max-width:520px}.grid3,.grid4{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.container{width:calc(100% - 36px)}.header-row{height:68px}.brand img{width:120px}.menu nav{top:68px}.section{padding:72px 0}.hero{padding-top:40px}.grid3,.grid4,.grid2,.blog-list,.lead .row,.footer-grid{grid-template-columns:1fr}.actions .btn{width:100%}.head{margin-bottom:36px}.card{padding:26px 22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}