/* Club Diamond La — estilos compartilhados (index.html e livro.html) */
:root{
  --vinho:#4a1c2b; --vinho2:#6b2a3f; --rosa:#e298a8; --rosa2:#f3c9d2; --blush:#fcf0f2; --creme:#fdf6ef;
  --ouro:#c9a46a; --ouro2:#e8d2a8; --texto:#3d2530; --suave:#7c6069; --linha:#f0dbe0;
  --serif:"Cormorant Garamond",Georgia,serif; --sans:"Plus Jakarta Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--sans);color:var(--texto);background:var(--creme);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{width:min(1140px,100% - 40px);margin-inline:auto}
.previa{background:#f5d76e;color:#3b2f0b;text-align:center;font-size:.78rem;font-weight:700;padding:6px 12px}

/* topo */
header{position:sticky;top:0;z-index:50;background:rgba(253,246,239,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--linha)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:18px}
.logo img{height:26px;width:auto}
.menu{display:flex;gap:28px;font-size:.9rem;font-weight:600;color:var(--suave)}
.menu a{position:relative;padding:4px 0}
.menu a:hover,.menu a.ativo{color:var(--vinho)}
.menu a.ativo::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--rosa);border-radius:2px}
.menu .tag-novo{font-size:.62rem;background:var(--ouro);color:#fff;border-radius:999px;padding:2px 7px;margin-left:6px;vertical-align:2px;letter-spacing:.04em}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 28px;border-radius:999px;font-weight:700;font-size:.95rem;letter-spacing:.02em;transition:transform .2s,box-shadow .2s,background .2s,color .2s;border:0;cursor:pointer;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:19px;height:19px;flex:none}
.btn-prim{background:linear-gradient(135deg,var(--vinho2),var(--vinho));color:#fff;box-shadow:0 12px 28px rgba(74,28,43,.28)}
.btn-rosa{background:linear-gradient(135deg,#eaa9b7,var(--rosa));color:var(--vinho);box-shadow:0 12px 28px rgba(226,152,168,.4)}
.btn-out{border:1.5px solid var(--vinho);color:var(--vinho);background:transparent}
.btn-out:hover{background:var(--vinho);color:#fff}
.btn-claro{border:1.5px solid rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06)}
.btn-claro:hover{background:#fff;color:var(--vinho)}
.nav .btn{min-height:44px;padding:0 22px;font-size:.88rem}

/* títulos */
section{padding:96px 0}
.kicker{display:inline-flex;align-items:center;gap:12px;font-size:.74rem;font-weight:800;letter-spacing:.3em;text-transform:uppercase;color:var(--ouro)}
.kicker::before{content:"";width:34px;height:1px;background:currentColor}
.centro .kicker::after{content:"";width:34px;height:1px;background:currentColor}
h1,h2,h3{font-family:var(--serif);font-weight:600;color:var(--vinho);line-height:1.05}
h2{font-size:clamp(2.2rem,4vw,3.3rem);margin:14px 0 16px}
h2 em,h1 em{font-style:italic;color:var(--rosa)}
.tit{max-width:680px;margin-bottom:52px}
.tit.centro{text-align:center;margin-inline:auto}
.tit p{color:var(--suave);font-size:1.05rem}

/* selo do livro */
.selo-livro{display:inline-flex;align-items:center;gap:8px;background:var(--vinho);color:var(--ouro2);font-size:.68rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;padding:8px 14px;border-radius:999px;box-shadow:0 8px 20px rgba(74,28,43,.25)}
.selo-livro i{font-style:normal;color:var(--ouro)}

/* capa do livro (card) */
.capa{position:relative;border-radius:6px 14px 14px 6px;overflow:hidden;aspect-ratio:2/3;background:linear-gradient(150deg,#eef3f6,#d9e4ea);box-shadow:0 30px 60px rgba(74,28,43,.28),inset 4px 0 0 rgba(255,255,255,.4)}
.capa img{width:100%;height:100%;object-fit:cover;object-position:50% 40%}
.capa::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.18) 0,rgba(255,255,255,.15) 3%,transparent 7%)}
/* enquanto não houver o arquivo da capa original, a imagem é uma foto do livro: moldura de foto, sem efeito de lombada */
body.capa-foto .capa{border-radius:18px;transform:none !important;border:4px solid #fff}
body.capa-foto .capa::after{display:none}
body.capa-foto .card-livro-flut .capa{border-width:2px;border-radius:8px}

/* rodapé */
footer{background:var(--vinho);color:#e9cdd5;padding:56px 0 30px;font-size:.92rem}
.rod{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;flex-wrap:wrap;margin-bottom:34px}
.rod .logo img{height:30px}
.rod p{margin-top:14px;max-width:340px;color:#d9b6c0}
.rod h5{color:#fff;font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;margin-bottom:12px}
.rod ul{list-style:none;display:grid;gap:8px}
.rod a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.8rem;color:#c79aa8}

/* botão flutuante e barra do celular */
.flutua{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 12px 30px rgba(37,211,102,.45)}
.flutua svg{width:31px;height:31px;fill:#fff}
.barra-cel{display:none}

.rev{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.rev.on{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rev{opacity:1;transform:none}}

@media (max-width:980px){
  .menu{display:none}
}
@media (max-width:640px){
  .wrap{width:calc(100% - 32px)}
  section{padding:60px 0}
  .nav{height:62px}
  .logo img{height:21px}
  .nav .btn{min-height:40px;padding:0 16px;font-size:.82rem}
  .tit{margin-bottom:32px}
  h2{font-size:2.05rem}
  .kicker{font-size:.66rem;letter-spacing:.24em}
  .kicker::before,.centro .kicker::after{width:22px}
  .rev{opacity:1;transform:none;transition:none}
  .rod{flex-direction:column;gap:20px;margin-bottom:24px}
  .rod ul{display:flex;flex-wrap:wrap;gap:6px 18px}
  .rod h5{margin-bottom:8px}
  footer{padding-bottom:100px}
  .flutua{display:none}
  .barra-cel{display:block;position:fixed;left:0;right:0;bottom:0;z-index:70;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(253,246,239,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--linha);box-shadow:0 -8px 24px rgba(74,28,43,.08);transform:translateY(110%);transition:transform .3s}
  .barra-cel.on{transform:none}
  .barra-cel .btn{width:100%;min-height:50px}
}