/* ============================================================
   Institut Guinot — estilos compartidos (páginas de tratamiento + hub)
   Replica los tokens y componentes del index.html (home).
   ============================================================ */
:root{
  --white:#FFFFFF; --paper:#FBF8F5; --nude:#F2E8E1; --ink:#1A1614;
  --ink-soft:#6E645E; --red:#CE0E2E; --red-deep:#A50A24; --line:#ECE3DC;
  --display:"Cormorant Garamond", Georgia, serif;
  --logo:"Marcellus", Georgia, serif;
  --body:"Jost", system-ui, sans-serif;
  --wrap:1180px; --gutter:clamp(1.25rem,5vw,4rem);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);font-weight:300;color:var(--ink);background:var(--white);line-height:1.62;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}
.eyebrow{font-family:var(--logo);font-size:.72rem;letter-spacing:.34em;text-transform:uppercase;color:var(--red)}
h1,h2,h3{font-family:var(--display);font-weight:500;line-height:1.06}
a{color:inherit;text-decoration:none}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--body);font-weight:400;font-size:.9rem;letter-spacing:.03em;padding:.85em 1.7em;border-radius:2px;border:1px solid transparent;cursor:pointer;transition:background .25s,color .25s,border-color .25s,transform .2s}
.btn:hover{transform:translateY(-1px)}
.btn--solid{background:var(--red);color:#fff}
.btn--solid:hover{background:var(--red-deep)}
.btn--ghost{border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--wa{background:#25D366;color:#06371f}
.btn--wa:hover{background:#1eb457}

/* ---------- Header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{font-family:var(--logo);font-size:1.5rem;letter-spacing:.18em;line-height:1}
.brand small{display:block;font-family:var(--body);font-size:.56rem;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-soft);font-weight:500;margin-top:4px}
.nav-links{display:flex;align-items:center;gap:1.6rem}
.nav-links a.link{font-size:.82rem;letter-spacing:.05em;color:var(--ink-soft);transition:color .2s}
.nav-links a.link:hover{color:var(--red)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;font-size:1.5rem;color:var(--ink)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{border-bottom:1px solid var(--line);background:var(--paper)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;align-items:center;font-size:.8rem;color:var(--ink-soft);padding-block:.85rem}
.breadcrumb li{display:flex;align-items:center;gap:.4rem}
.breadcrumb li+li::before{content:"›";color:var(--line)}
.breadcrumb a:hover{color:var(--red)}
.breadcrumb [aria-current]{color:var(--ink)}

/* ---------- Hero de tratamiento ---------- */
.t-hero{padding-block:clamp(2.5rem,6vw,5rem)}
.t-hero .eyebrow{display:block;margin-bottom:1rem}
.t-hero h1{font-size:clamp(2.4rem,5.5vw,4rem);margin-bottom:1.2rem}
.t-hero h1 em{font-style:italic;color:var(--red)}
.t-hero .lede{font-size:1.1rem;color:var(--ink-soft);max-width:60ch;margin-bottom:1.6rem}
.chips{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:1.9rem}
.chip{font-size:.74rem;letter-spacing:.05em;background:var(--nude);color:var(--ink);padding:.5em 1em;border-radius:2px}
.chip--price{background:var(--ink);color:#fff}
.chip--tag{background:var(--red);color:#fff}
.t-cta{display:flex;gap:.8rem;flex-wrap:wrap}

/* ---------- Secciones ---------- */
section.block{padding-block:clamp(3rem,7vw,5.5rem)}
.block--paper{background:var(--paper)}
.section-head{max-width:52ch;margin-bottom:2.2rem}
.section-head h2{font-size:clamp(1.8rem,4vw,2.8rem);margin:.6rem 0}
.section-head p{color:var(--ink-soft);font-size:1.03rem}
.prose{max-width:62ch}
.prose p{margin-bottom:1rem;color:var(--ink-soft)}
.includes{list-style:none;max-width:62ch;margin-top:.5rem}
.includes li{position:relative;padding:.55rem 0 .55rem 1.6rem;border-bottom:1px solid var(--line)}
.includes li::before{content:"";position:absolute;left:0;top:1.15rem;width:8px;height:8px;border-radius:50%;background:var(--red)}
.factbox{display:flex;flex-wrap:wrap;gap:2rem;margin-top:1.6rem}
.factbox div{min-width:8rem}
.factbox .k{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--red);margin-bottom:.3rem}
.factbox .v{font-family:var(--display);font-size:1.5rem}

/* ---------- FAQ ---------- */
.faq{max-width:62ch}
.faq details{border-bottom:1px solid var(--line);padding:.9rem 0}
.faq summary{cursor:pointer;font-family:var(--display);font-size:1.25rem;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--red)}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--ink-soft);margin-top:.6rem}

/* ---------- Grid de tarjetas (hub + relacionados) ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:1.5rem}
.card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:2px;padding:1.4rem;background:var(--white);transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--red);transform:translateY(-2px)}
.card .k{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--red);margin-bottom:.5rem;min-height:1rem}
.card h3{font-family:var(--display);font-size:1.4rem;margin-bottom:.5rem}
.card p{font-size:.92rem;color:var(--ink-soft);margin-bottom:1rem;flex:1}
.card .price{font-family:var(--display);font-size:1.15rem}
.card .go{font-size:.8rem;letter-spacing:.05em;color:var(--red);margin-top:.9rem}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:#fff;padding-block:clamp(3rem,5vw,4rem)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem}
footer .brand{color:#fff}
footer .brand small{color:rgba(255,255,255,.5)}
.foot-col h4{font-family:var(--body);font-weight:500;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--red);margin-bottom:1rem}
.foot-col a{display:block;color:rgba(255,255,255,.78);font-size:.92rem;margin-bottom:.55rem;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bottom{margin-top:3rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.14);font-size:.78rem;color:rgba(255,255,255,.5);display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem}

/* ---------- WhatsApp flotante ---------- */
.wa-float{position:fixed;right:1.4rem;bottom:1.4rem;z-index:60;width:58px;height:58px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px -8px rgba(37,211,102,.7);transition:transform .2s}
.wa-float:hover{transform:scale(1.06)}
.wa-float svg{width:30px;height:30px;fill:#fff}

/* ---------- Responsive ---------- */
@media (max-width:960px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:860px){
  .nav-links{position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:0 var(--gutter);max-height:0;overflow:hidden;border-bottom:1px solid transparent;transition:max-height .3s}
  .nav-links.open{max-height:80vh;padding-block:1rem;border-bottom:1px solid var(--line)}
  .nav-links a.link,.nav-links .btn{width:100%;padding-block:.7rem}
  .nav-toggle{display:block}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:560px){.cards{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}