:root{
  --bg:#f5f5f7;--bg-alt:#fbfbfd;--ink:#1d1d1f;--ink-soft:#2c2c2e;
  --gold:#b08d57;--gold-dark:#8c6d42;--gold-soft:#c9a87a;
  --muted:#86868b;--line:#e5e5e7;--card:#ffffff;
  --serif:'Cormorant Garamond',Georgia,serif;
  --sans:'Montserrat',system-ui,sans-serif;
  --radius:2px;--max:1240px;--pad:clamp(1.25rem,4vw,2.5rem);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-weight:300;color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;letter-spacing:-.005em;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .3s var(--ease)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;line-height:1.15;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(2.6rem,5.8vw,4.75rem)}
h2{font-size:clamp(1.9rem,4vw,3rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
p{margin:0 0 1rem}
.container{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.reveal{opacity:0;transform:translateY(25px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}

/* TOPBAR + NAVBAR (shared with rest of site) */
.topbar{position:fixed;top:0;left:0;right:0;z-index:101;background:rgba(10,10,10,.55);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08);transition:background .4s}
.topbar.scrolled{background:var(--ink)}
.topbar-inner{max-width:var(--max);margin:0 auto;padding:.7rem var(--pad);display:flex;align-items:center;justify-content:space-between;gap:1.5rem;color:rgba(255,255,255,.85);font-size:.78rem}
.topbar-info{display:flex;gap:2rem;align-items:center;flex-wrap:wrap}
.topbar-info-item{display:inline-flex;align-items:center;gap:.55rem;color:rgba(255,255,255,.85);transition:color .3s}
.topbar-info-item:hover{color:var(--gold-soft)}
.topbar-info-item svg{width:14px;height:14px;color:var(--gold-soft);flex-shrink:0}
.topbar-info-item strong{font-weight:600;color:#fff}
.topbar-social{display:flex;gap:.9rem}
.topbar-social a{color:rgba(255,255,255,.7)}
.topbar-social a:hover{color:var(--gold-soft)}
.topbar-social svg{width:15px;height:15px}

.nav{position:fixed;top:46px;left:0;right:0;z-index:100;padding:0 var(--pad);background:rgba(245,245,247,.92);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.nav-inner{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:110px}
.logo{display:flex;align-items:center}
.logo-img{height:76px;width:auto;filter:invert(1) brightness(0)}
.nav-links{display:flex;gap:2.4rem;align-items:center;list-style:none;margin:0;padding:0}
.nav-links a,.nav-links .nav-dd-trigger{font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;font-weight:500;color:var(--ink);position:relative;cursor:pointer}
.nav-links a::after,.nav-links .nav-dd-trigger::after{content:'';position:absolute;bottom:-6px;left:0;width:0;height:1px;background:var(--gold);transition:width .4s var(--ease)}
.nav-links a:hover::after,.nav-dd:hover .nav-dd-trigger::after{width:100%}
.nav-links a:hover,.nav-dd:hover .nav-dd-trigger{color:var(--gold)}

.nav-dd{position:relative}
.nav-dd::after{content:'';position:absolute;top:100%;left:-20px;right:-20px;height:30px;pointer-events:auto}
.nav-dd-trigger{display:inline-flex;align-items:center;gap:6px}
.nav-dd-trigger svg{width:10px;height:10px;transition:transform .3s}
.nav-dd:hover .nav-dd-trigger svg{transform:rotate(180deg)}
.nav-dd-menu{position:absolute;top:calc(100% + 18px);left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border:1px solid var(--line);min-width:480px;padding:1.4rem 1.8rem;display:grid;grid-template-columns:1fr 1fr;gap:.1rem 1.8rem;opacity:0;visibility:hidden;pointer-events:none;box-shadow:0 20px 50px rgba(0,0,0,.1);transition:opacity .3s var(--ease),visibility .3s var(--ease),transform .3s var(--ease);border-radius:var(--radius);border-top:2px solid var(--gold)}
.nav-dd:hover .nav-dd-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.nav-dd-menu a{color:var(--ink)!important;font-family:var(--serif);font-size:1.05rem;font-weight:500;text-transform:none;letter-spacing:-.005em;padding:.55rem 0;white-space:nowrap;transition:all .3s}
.nav-dd-menu a::after{display:none}
.nav-dd-menu a:hover{color:var(--gold)!important;padding-left:6px}

.nav-cta{background:var(--gold)!important;color:#fff!important;border:1px solid var(--gold);padding:.8rem 1.7rem;border-radius:var(--radius);font-weight:600;letter-spacing:.12em;box-shadow:0 6px 20px rgba(176,141,87,.35);transition:all .3s}
.nav-cta:hover{background:var(--gold-dark)!important;border-color:var(--gold-dark);transform:translateY(-1px)}
.nav-cta::after{display:none!important}
.burger{display:none;width:32px;height:32px;flex-direction:column;justify-content:center;gap:5px;padding:0}
.burger span{display:block;height:1.5px;width:24px;background:var(--ink);transition:.3s;margin-left:auto}

.btn{display:inline-flex;align-items:center;gap:.6rem;padding:.9rem 1.8rem;font-size:.78rem;letter-spacing:.15em;text-transform:uppercase;font-weight:500;border:1px solid var(--ink);color:var(--ink);background:transparent;transition:all .4s var(--ease);cursor:pointer;border-radius:var(--radius)}
.btn:hover{background:var(--ink);color:#fff}
.btn-gold{background:var(--gold);border-color:var(--gold);color:#fff}
.btn-gold:hover{background:var(--gold-dark);border-color:var(--gold-dark)}

/* ============ HERO ============ */
.cases-hero{position:relative;padding:clamp(180px,24vh,240px) 0 clamp(3.5rem,7vw,5.5rem);color:#fff;background:var(--ink);overflow:hidden;text-align:center}
.cases-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center top,rgba(176,141,87,.22),transparent 65%);pointer-events:none}
.cases-hero-inner{position:relative;z-index:1;max-width:820px;margin:0 auto;padding:0 var(--pad)}
.cases-hero .eyebrow{display:inline-flex;align-items:center;gap:.85rem;font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:1.4rem;font-weight:500}
.cases-hero .eyebrow::before,.cases-hero .eyebrow::after{content:'';width:38px;height:1px;background:var(--gold-soft)}
.cases-hero h1{color:#fff;font-weight:300;margin-bottom:1.4rem}
.cases-hero h1 em{font-style:italic;color:var(--gold-soft);font-weight:300}
.cases-hero p{color:rgba(255,255,255,.78);font-size:1.1rem;line-height:1.75;max-width:620px;margin:0 auto;font-weight:300}
.cases-hero-stats{display:flex;justify-content:center;gap:clamp(2rem,5vw,4rem);margin-top:3rem;padding-top:2.2rem;border-top:1px solid rgba(255,255,255,.12);flex-wrap:wrap}
.cases-hero-stat{text-align:center}
.cases-hero-stat strong{display:block;font-family:var(--serif);font-size:2.4rem;color:var(--gold-soft);font-weight:400;line-height:1}
.cases-hero-stat span{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.55);display:block;margin-top:.5rem}

/* Filtros */
.cases-filters{padding:2rem 0 1rem;background:var(--bg);text-align:center;border-bottom:1px solid var(--line)}
.cases-filters-inner{display:inline-flex;gap:.5rem;flex-wrap:wrap;justify-content:center}
.cf{padding:.6rem 1.4rem;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;font-weight:500;border:1px solid var(--line);background:transparent;cursor:pointer;border-radius:999px;color:var(--muted);transition:all .3s var(--ease)}
.cf:hover{color:var(--ink);border-color:var(--ink)}
.cf.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Listado de casos */
.cases-list{padding:clamp(3rem,6vw,5.5rem) 0;background:var(--bg)}
.case{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center;margin-bottom:clamp(4rem,8vw,6rem)}
.case:last-child{margin-bottom:0}
.case.reverse{direction:rtl}
.case.reverse > *{direction:ltr}
.case-body{padding:.5rem 0}
.case-cat{display:inline-flex;align-items:center;gap:.6rem;font-size:.66rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:1rem;font-weight:600}
.case-cat::before{content:'';width:26px;height:1px;background:var(--gold)}
.case h2{font-family:var(--serif);font-weight:400;margin-bottom:1.2rem;font-size:clamp(1.8rem,3.2vw,2.6rem);line-height:1.2}
.case h2 em{font-style:italic;color:var(--gold);font-weight:300}
.case-lead{font-family:var(--serif);font-style:italic;font-size:1.25rem;line-height:1.55;color:var(--ink);margin-bottom:1.2rem;font-weight:400}
.case-text{color:var(--ink-soft);font-size:1.02rem;line-height:1.8;margin-bottom:1.4rem;font-weight:300}
.case-text strong{color:var(--ink);font-weight:500}
.case-kicker{display:flex;gap:.8rem;align-items:flex-start;padding:1.2rem 1.4rem;background:var(--bg-alt);border-left:3px solid var(--gold);font-size:.98rem;line-height:1.65;color:var(--ink-soft);font-family:var(--serif);font-style:italic;margin-bottom:1.6rem}
.case-kicker svg{width:22px;height:22px;color:var(--gold);flex-shrink:0;margin-top:2px}
.case-meta{display:flex;gap:2rem;padding-top:1.4rem;border-top:1px solid var(--line);flex-wrap:wrap;margin-top:.4rem}
.case-meta-item{font-size:.78rem}
.case-meta-item strong{display:block;font-family:var(--serif);font-size:1.05rem;font-weight:500;color:var(--ink);margin-bottom:.2rem;font-style:normal}
.case-meta-item span{color:var(--muted);letter-spacing:.05em;font-size:.72rem;text-transform:uppercase}

/* Slider antes / después */
.ba{position:relative;width:100%;aspect-ratio:4/3;overflow:hidden;background:#000;border-radius:var(--radius);user-select:none;box-shadow:0 28px 60px rgba(28,25,23,.14);cursor:ew-resize;touch-action:none}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none;display:block}
.ba .ba-after{clip-path:inset(0 0 0 var(--pos,50%))}
.ba .ba-line{position:absolute;top:0;bottom:0;left:var(--pos,50%);width:2px;background:rgba(255,255,255,.92);box-shadow:0 0 10px rgba(0,0,0,.35);pointer-events:none;transform:translateX(-50%)}
.ba .ba-handle{position:absolute;top:50%;left:var(--pos,50%);transform:translate(-50%,-50%);width:54px;height:54px;border-radius:50%;background:#fff;border:1px solid rgba(28,25,23,.1);box-shadow:0 10px 24px rgba(0,0,0,.25);display:flex;align-items:center;justify-content:center;pointer-events:none;transition:transform .2s var(--ease)}
.ba .ba-handle::before{content:'';position:absolute;inset:-10px;border-radius:50%;background:rgba(255,255,255,.16);animation:baPulse 2.2s ease-out infinite;z-index:-1}
@keyframes baPulse{0%{transform:scale(1);opacity:.4}100%{transform:scale(1.8);opacity:0}}
.ba:hover .ba-handle{transform:translate(-50%,-50%) scale(1.06)}
.ba-handle svg{width:22px;height:22px;color:var(--gold-dark)}
.ba-label{position:absolute;top:1.2rem;padding:.45rem .9rem;font-size:.62rem;letter-spacing:.28em;text-transform:uppercase;font-weight:600;color:#fff;background:rgba(10,10,10,.55);backdrop-filter:blur(6px);border-radius:999px;pointer-events:none;border:1px solid rgba(255,255,255,.18)}
.ba-label.before{left:1.2rem}
.ba-label.after{right:1.2rem;background:rgba(176,141,87,.92)}
.ba.dragging .ba-handle{transform:translate(-50%,-50%) scale(1.14)}
.ba-hint{position:absolute;bottom:1rem;left:50%;transform:translateX(-50%);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;color:rgba(255,255,255,.85);background:rgba(10,10,10,.45);padding:.35rem .8rem;border-radius:999px;pointer-events:none;opacity:.9;transition:opacity .4s;white-space:nowrap}
.ba.touched .ba-hint{opacity:0}

/* Empty result state */
.cases-empty{text-align:center;padding:4rem 0;color:var(--muted);font-family:var(--serif);font-style:italic;font-size:1.3rem;display:none}
.cases-empty.show{display:block}

/* Nota clínica */
.cases-note{background:var(--bg-alt);padding:clamp(2.5rem,5vw,3.5rem) 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center}
.cases-note-inner{max-width:720px;margin:0 auto;padding:0 var(--pad);font-size:.9rem;color:var(--muted);line-height:1.75;font-style:italic;font-family:var(--serif)}
.cases-note-inner strong{color:var(--ink);font-style:normal;font-family:var(--sans);font-size:.68rem;letter-spacing:.28em;text-transform:uppercase;font-weight:600;display:block;margin-bottom:.6rem}

/* CTA final */
.cases-cta{padding:clamp(4rem,8vw,6rem) 0;background:var(--ink);color:#fff;text-align:center;background-image:radial-gradient(ellipse at top,rgba(176,141,87,.14),transparent 65%)}
.cases-cta h2{color:#fff;font-weight:300;margin-bottom:1.2rem}
.cases-cta h2 em{font-style:italic;color:var(--gold-soft);font-weight:300}
.cases-cta p{color:rgba(255,255,255,.75);max-width:560px;margin:0 auto 2.2rem;font-size:1.05rem}
.cases-cta-btns{display:inline-flex;gap:.8rem;flex-wrap:wrap;justify-content:center}
.cases-cta .btn{border-color:rgba(255,255,255,.5);color:#fff}
.cases-cta .btn:hover{background:#fff;color:var(--ink)}
.cases-cta .btn-gold{background:var(--gold);border-color:var(--gold)}
.cases-cta .btn-gold:hover{background:var(--gold-dark);border-color:var(--gold-dark);color:#fff}

/* FOOTER */
.footer{background:#0f0d0c;color:rgba(255,255,255,.6);padding:4rem 0 2rem;font-size:.88rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3rem}
.footer h4{color:#fff;font-size:.75rem;letter-spacing:.25em;text-transform:uppercase;margin-bottom:1.4rem;font-weight:500;font-family:var(--sans)}
.footer a{color:rgba(255,255,255,.6);display:block;padding:.35rem 0;font-size:.88rem}
.footer a:hover{color:var(--gold)}
.footer-brand-logo{height:70px;margin-bottom:1.2rem}
.footer-brand p{line-height:1.7;font-size:.88rem;max-width:360px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:1.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.78rem;color:rgba(255,255,255,.45)}

.wa-float{position:fixed;bottom:26px;right:26px;z-index:90;width:60px;height:60px;background:#25d366;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 14px 34px rgba(37,211,102,.35);transition:all .35s;animation:waPop 1.8s cubic-bezier(.34,1.56,.64,1) .3s}
@keyframes waPop{0%,100%{transform:scale(1)}15%{transform:scale(1.12)}30%{transform:scale(.95)}45%{transform:scale(1.05)}}
.wa-float.hide{transform:translateY(80px) scale(0);opacity:0}
.wa-float:hover{box-shadow:0 18px 40px rgba(37,211,102,.5),0 0 0 4px rgba(176,141,87,.35)}
.wa-float::before{content:'';position:absolute;inset:-6px;border-radius:50%;background:#25d366;opacity:.35;animation:waPulse 2s ease-out infinite;z-index:-1}
@keyframes waPulse{0%{transform:scale(1);opacity:.35}100%{transform:scale(1.5);opacity:0}}
.wa-float svg{width:28px;height:28px}

/* RESPONSIVE */
@media (max-width:1040px){
  .case{grid-template-columns:1fr;gap:2rem}
  .case.reverse{direction:ltr}
  .case .case-body{order:2}
  .case .ba-wrap{order:1}
}
@media (max-width:960px){
  .topbar-social{display:none}
  .topbar-info{gap:1.2rem;font-size:.72rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
  .cases-hero-stats{gap:2rem}
  .cases-hero-stat strong{font-size:2rem}
}
@media (max-width:640px){
  .topbar{display:none}
  .nav{top:0}
  .nav-inner{height:90px}
  .logo-img{height:58px}
  .nav-links{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg);flex-direction:column;gap:0;padding:5rem 0 1rem;align-items:stretch;transform:translateY(-120%);transition:transform .4s;overflow-y:auto}
  .nav-links.open{transform:translateY(0)}
  .nav-links li{width:100%;border-bottom:1px solid var(--line)}
  .nav-links li:last-child{border-bottom:none;padding:1rem var(--pad)}
  .nav-links a,.nav-links .nav-dd-trigger{display:block;padding:1.2rem var(--pad);font-size:1rem}
  .nav-links .nav-cta{width:100%;text-align:center}
  .nav-dd-menu{position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;min-width:auto;box-shadow:none;border:none;padding:.4rem 0 1rem;display:block;grid-template-columns:1fr}
  .nav-dd-menu a{padding:.5rem var(--pad)!important;font-size:.95rem}
  .burger{display:flex}
  .footer-grid{grid-template-columns:1fr}
  .ba{aspect-ratio:3/4}
  .ba-label{font-size:.58rem;padding:.35rem .75rem}
  .ba .ba-handle{width:46px;height:46px}
  .footer-bottom{flex-direction:column;text-align:center}
}
.topbar-lang{font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;font-weight:600;color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:.25rem .7rem;margin-left:.4rem;transition:all .3s}
.topbar-lang:hover{color:var(--gold-soft);border-color:var(--gold-soft)}
.nav-links a.nav-lang{display:none}
@media(max-width:960px){
  .nav-links a.nav-lang{display:inline-flex;align-items:center;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;border:1px solid var(--gold)!important;color:var(--gold)!important;border-radius:999px;padding:.5rem 1rem;transition:all .3s}
  .nav-links a.nav-lang:hover{background:var(--gold);color:#fff!important}
}