/* =========================================================
   HEAD SPA — Ciência, Arte e Experiência
   Página de vendas · Head Spa Brasil
   Paleta: preto · dourado · marfim
   ========================================================= */

:root{
  --preto:#0B0B0B;
  --preto-2:#141414;
  --preto-3:#1E1C18;
  --dourado:#C9A227;
  --dourado-claro:#E7CE7E;
  --dourado-escuro:#8A6B15;   /* usado como texto sobre marfim (contraste AA) */
  --marfim:#F6F1E7;
  --marfim-2:#FBF8F2;
  --tinta:#17150F;
  --tinta-suave:#4A453A;
  --linha:rgba(201,162,39,.28);
  --linha-clara:rgba(23,21,15,.12);

  --max:1120px;
  --raio:14px;
  --sombra:0 12px 32px rgba(0,0,0,.18);

  --serif:Georgia,"Iowan Old Style","Times New Roman",Times,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}

body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  color:var(--tinta);
  background:var(--marfim);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block}

h1,h2,h3{font-family:var(--serif);line-height:1.18;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.85rem,6.2vw,3.1rem)}
h2{font-size:clamp(1.5rem,4.6vw,2.25rem)}
h3{font-size:clamp(1.1rem,3.2vw,1.3rem)}
p{margin:0 0 1em}

a{color:inherit}
:focus-visible{outline:3px solid var(--dourado);outline-offset:3px;border-radius:4px}

.container{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:20px}

section[id],main[id]{scroll-margin-top:72px}
.secao{padding:56px 0}
@media (min-width:820px){ .secao{padding:80px 0} }

.secao--escura{background:var(--preto);color:#EDE8DC}
.secao--escura h2,.secao--escura h3{color:#fff}
.secao--clara{background:var(--marfim-2)}

.olho{
  font-family:var(--sans);
  font-size:.78rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:700;
  color:var(--dourado-escuro);
  margin:0 0 .6em;
}
.secao--escura .olho{color:var(--dourado-claro)}

.centro{text-align:center}
.medida{max-width:64ch}
.centro .medida{margin-inline:auto}

/* ---------- Cabeçalho ---------- */
.cabecalho{
  position:sticky;top:0;z-index:40;
  background:rgba(11,11,11,.96);
  border-bottom:1px solid rgba(201,162,39,.22);
}
.cabecalho__interno{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:62px;
}
.marca{display:flex;flex-direction:column;line-height:1;text-decoration:none}
.marca__nome{font-family:var(--serif);font-size:1.12rem;color:#fff;letter-spacing:.02em}
.marca__sub{font-size:.62rem;letter-spacing:.34em;text-transform:uppercase;color:var(--dourado);margin-top:3px}
.cabecalho .btn{padding:11px 16px;font-size:.78rem}
@media (max-width:479px){ .cabecalho .btn{display:none} }

/* ---------- Botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  min-height:56px;padding:16px 26px;
  border:0;border-radius:999px;
  font-family:var(--sans);font-size:1rem;font-weight:800;
  letter-spacing:.045em;text-transform:uppercase;text-align:center;
  text-decoration:none;cursor:pointer;
  background:linear-gradient(180deg,var(--dourado-claro),var(--dourado));
  color:#20180A;
  box-shadow:0 8px 22px rgba(201,162,39,.32);
  transition:transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.btn:hover{filter:brightness(1.05);box-shadow:0 10px 26px rgba(201,162,39,.42)}
.btn:active{transform:translateY(1px)}
.btn--bloco{display:flex;width:100%}
.btn--contorno{
  background:transparent;color:var(--dourado-claro);
  border:2px solid var(--dourado);box-shadow:none;
}
.btn--contorno:hover{background:rgba(201,162,39,.12)}

.selo-btn{
  margin:12px 0 0;
  font-size:.83rem;line-height:1.5;
  color:var(--tinta-suave);
  text-align:center;
}
.secao--escura .selo-btn{color:#B9B2A2}

.cta{margin-top:30px}
.cta .btn{max-width:460px;margin-inline:auto}
@media (min-width:560px){ .cta .btn--bloco{display:inline-flex;width:auto} }

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 460px at 50% -8%, rgba(201,162,39,.20), transparent 62%),
    linear-gradient(180deg,var(--preto) 0%, var(--preto-3) 100%);
  color:#EDE8DC;
  padding:26px 0 44px;
}
.hero__grade{display:grid;gap:22px;align-items:center}
@media (min-width:900px){
  .hero{padding:64px 0 76px}
  .hero__grade{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:52px}
}
.hero h1{color:#fff;margin-bottom:.35em}
.hero h1 em{font-style:normal;color:var(--dourado-claro);display:block;font-size:.6em;letter-spacing:.02em;margin-top:.25em}
.hero__lead{font-size:1.06rem;color:#D8D2C4;max-width:56ch}

.preco{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;
  margin:22px 0 6px;
}
.preco__rotulo{font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dourado-claro);width:100%;display:flex;flex-wrap:wrap;align-items:center;gap:9px}
.preco__rotulo .off{
  background:var(--dourado);color:#20180A;
  padding:3px 9px;border-radius:999px;
  font-size:.74rem;font-weight:800;letter-spacing:.08em;
}
.preco__antes{width:100%;font-size:.95rem;color:#B9B2A2;margin-bottom:-4px}
.preco__antes s{color:#9A9385}
.preco__prazo{margin:10px 0 0;font-size:.84rem;color:#B9B2A2}
.oferta .preco__antes,.oferta .preco__prazo{width:100%;text-align:center}
.preco__valor{font-family:var(--serif);font-size:clamp(2.2rem,8vw,2.9rem);color:#fff;line-height:1}
.preco__nota{font-size:.95rem;color:#D8D2C4}
.tag-frete{
  display:inline-block;margin-top:4px;
  padding:5px 13px;border-radius:999px;
  background:rgba(201,162,39,.16);border:1px solid var(--linha);
  color:var(--dourado-claro);font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
}

/* ---------- Mockup do livro ---------- */
.mockup{display:flex;justify-content:center;perspective:1400px}
.mockup__livro{
  position:relative;
  width:min(238px,60vw);
  border-radius:4px 8px 8px 4px;
  overflow:hidden;
  box-shadow:
    0 2px 0 rgba(255,255,255,.06) inset,
    26px 34px 60px rgba(0,0,0,.55),
    0 0 0 1px rgba(201,162,39,.18);
}
@media (min-width:900px){ .mockup__livro{width:min(360px,32vw)} }
.mockup__livro img{width:100%;border-radius:inherit}
/* lombada */
.mockup__livro::before{
  content:"";position:absolute;inset:0 auto 0 0;width:16px;
  background:linear-gradient(90deg,rgba(0,0,0,.55),rgba(0,0,0,.12) 55%,rgba(255,255,255,.06));
  pointer-events:none;
}
/* brilho de papel */
.mockup__livro::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(255,255,255,.16) 0%,rgba(255,255,255,0) 34%);
  pointer-events:none;
}
.mockup__base{
  width:min(260px,64vw);height:20px;margin-top:-8px;margin-inline:auto;
  background:radial-gradient(ellipse at center,rgba(0,0,0,.55),transparent 70%);
  filter:blur(2px);
}

/* ---------- Faixa de confiança ---------- */
.faixa{background:var(--preto-2);border-block:1px solid rgba(201,162,39,.22);padding:16px 0}
.faixa ul{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;
}
.faixa li{
  display:flex;align-items:center;gap:9px;
  color:#E6E0D2;font-size:.9rem;font-weight:600;
}
.faixa svg{flex:none;width:19px;height:19px;fill:none;stroke:var(--dourado);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Cartões ---------- */
.grade{display:grid;gap:16px}
.grade--2{grid-template-columns:1fr}
.grade--3{grid-template-columns:1fr}
@media (min-width:640px){
  .grade--2{grid-template-columns:repeat(2,1fr)}
  .grade--3{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:960px){ .grade--3{grid-template-columns:repeat(3,1fr)} }

.cartao{
  background:#fff;border:1px solid var(--linha-clara);border-radius:var(--raio);
  padding:22px;
}
.cartao h3{margin-bottom:.35em}
.cartao p{margin:0;color:var(--tinta-suave);font-size:.97rem}
.secao--escura .cartao{
  background:rgba(255,255,255,.04);border-color:var(--linha);
}
.secao--escura .cartao p{color:#C6BFAF}

/* ---------- Listas com check ---------- */
.checks{list-style:none;margin:0;padding:0;display:grid;gap:11px}
@media (min-width:720px){ .checks--2col{grid-template-columns:repeat(2,1fr);gap:11px 26px} }
.checks li{position:relative;padding-left:32px;font-size:1rem}
.checks li::before{
  content:"";position:absolute;left:0;top:.32em;
  width:19px;height:19px;border-radius:50%;
  background:var(--dourado);
}
.checks li::after{
  content:"";position:absolute;left:6px;top:.62em;
  width:7px;height:4px;
  border-left:2px solid #17150F;border-bottom:2px solid #17150F;
  transform:rotate(-45deg);
}

/* ---------- Protocolos ---------- */
.protocolos{counter-reset:p;display:grid;gap:14px;list-style:none;margin:0;padding:0}
@media (min-width:640px){ .protocolos{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1000px){ .protocolos{grid-template-columns:repeat(3,1fr)} }
.protocolos li{
  counter-increment:p;
  position:relative;
  padding:20px 20px 20px 66px;
  border:1px solid var(--linha);
  border-radius:var(--raio);
  background:rgba(255,255,255,.04);
  font-family:var(--serif);font-size:1.06rem;line-height:1.35;color:#fff;
}
.protocolos li::before{
  content:counter(p,decimal-leading-zero);
  position:absolute;left:20px;top:18px;
  font-family:var(--serif);font-size:1.5rem;font-weight:700;
  color:var(--dourado);
}

/* ---------- Autor ---------- */
.autor{display:grid;gap:22px;align-items:center}
@media (min-width:820px){ .autor{grid-template-columns:auto 1fr;gap:34px} }
.autor__selo{
  width:118px;height:118px;border-radius:50%;
  display:grid;place-items:center;margin-inline:auto;
  background:linear-gradient(145deg,var(--dourado-claro),var(--dourado));
  color:#20180A;font-family:var(--serif);font-size:2.4rem;font-weight:700;
}

/* ---------- Oferta ---------- */
.oferta{
  background:linear-gradient(180deg,var(--preto-3),var(--preto));
  border:1px solid var(--linha);border-radius:20px;
  padding:30px 22px;text-align:center;color:#EDE8DC;
  max-width:640px;margin-inline:auto;
}
@media (min-width:720px){ .oferta{padding:42px 40px} }
.oferta h2{color:#fff}
.oferta .preco{justify-content:center;margin-top:18px}
.oferta .preco__rotulo{text-align:center}
.oferta .checks{margin:22px auto 0;max-width:36ch;text-align:left}
.oferta .checks li{color:#E6E0D2}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:10px;max-width:780px;margin-inline:auto}
.faq details{
  background:#fff;border:1px solid var(--linha-clara);border-radius:var(--raio);
}
.faq summary{
  cursor:pointer;list-style:none;
  padding:17px 52px 17px 18px;position:relative;
  font-weight:700;font-size:1rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:20px;top:50%;
  width:10px;height:10px;margin-top:-7px;
  border-right:2px solid var(--dourado-escuro);border-bottom:2px solid var(--dourado-escuro);
  transform:rotate(45deg);transition:transform .18s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg);margin-top:-3px}
.faq .faq__corpo{padding:0 18px 18px;color:var(--tinta-suave);font-size:.98rem}
.faq .faq__corpo p:last-child{margin-bottom:0}

/* ---------- Rodapé ---------- */
.rodape{background:var(--preto);color:#A9A296;padding:40px 0 96px;font-size:.9rem}
@media (min-width:760px){ .rodape{padding-bottom:44px} }
.rodape .marca__nome{font-size:1.05rem}
.rodape a{color:var(--dourado-claro)}
.rodape hr{border:0;border-top:1px solid rgba(255,255,255,.1);margin:22px 0}
.rodape__aviso{font-size:.82rem;line-height:1.6;color:#8C8578}

/* ---------- WhatsApp ---------- */
.zap{
  position:fixed;right:16px;bottom:88px;z-index:45;
  width:54px;height:54px;border-radius:50%;
  display:grid;place-items:center;
  background:#1FA855;color:#fff;text-decoration:none;
  box-shadow:0 8px 22px rgba(0,0,0,.3);
}
.zap svg{width:29px;height:29px;fill:currentColor}
@media (min-width:760px){ .zap{bottom:24px} }

/* ---------- Barra fixa (celular) ---------- */
.barra-fixa{
  position:fixed;left:0;right:0;bottom:0;z-index:44;
  background:rgba(11,11,11,.97);
  border-top:1px solid var(--linha);
  padding:9px 14px calc(9px + env(safe-area-inset-bottom));
  display:flex;align-items:center;gap:12px;
}
.barra-fixa__preco{flex:none;line-height:1.15}
.barra-fixa__preco strong{display:block;font-family:var(--serif);font-size:1.15rem;color:#fff}
.barra-fixa__preco span{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--dourado-claro)}
.barra-fixa .btn{flex:1;min-height:50px;padding:12px 14px;font-size:.8rem;letter-spacing:.03em}
@media (min-width:760px){ .barra-fixa{display:none} }

.pular{
  position:absolute;left:-9999px;
  background:var(--dourado);color:#111;padding:10px 16px;border-radius:0 0 8px 0;
}
.pular:focus{left:0;top:0;z-index:100}