/* ============================================================
   PORTFOLIO — estilos de /portfolio y de los casos de estudio
   Usa los tokens y componentes compartidos de brand.css.
   ============================================================ */

/* ---------- Hero del índice ---------- */
.pf-hero{position:relative;padding:clamp(90px,14vw,140px) 0 30px;overflow:hidden}
.pf-hero .iso-grid{opacity:.7}
.pf-hero-inner{max-width:740px}
.pf-hero h1{font-size:clamp(2.4rem,6vw,4.2rem);margin:18px 0 18px;line-height:1.05}
.pf-hero h1 .accent{color:var(--lime)}
.pf-hero p{color:var(--muted);font-size:clamp(1.05rem,2.2vw,1.3rem);max-width:54ch}

/* ---------- Grid de casos ---------- */
.pf-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:20px}
.pf-card{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);aspect-ratio:16/11;display:flex;flex-direction:column;justify-content:flex-end;padding:30px;isolation:isolate;transition:transform .55s var(--ease),border-color .55s var(--ease)}
.pf-card .bg{position:absolute;inset:0;z-index:-2;transition:transform .8s var(--ease)}
.pf-card .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 25%,rgba(0,0,0,.88))}
.pf-card:hover{transform:translateY(-8px);border-color:#3a3a45}
.pf-card:hover .bg{transform:scale(1.07)}
.pf-card .cat{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--lime);font-family:var(--font-display);font-weight:600}
.pf-card h3{font-size:1.8rem;margin:6px 0 6px}
.pf-card .res{color:#dcdcdc;font-size:.95rem;max-width:38ch}
.pf-card .live{display:inline-flex;align-items:center;gap:.5em;margin-top:18px;font-family:var(--font-display);font-weight:600;font-size:.95rem;color:var(--text);transform:translateY(10px);opacity:0;transition:.5s var(--ease)}
.pf-card:hover .live{transform:none;opacity:1}
.pf-card .live svg{width:1em;height:1em;transition:transform .3s var(--ease)}
.pf-card:hover .live svg{transform:translate(3px,-3px)}
/* fondos generados por CSS */
.bg-brasa{background:radial-gradient(120% 100% at 30% 20%,#ff7a3d,#7a1f0e 60%,#2a0c06)}
.bg-pulse{background:radial-gradient(120% 100% at 70% 10%,#5CE0D8,#1a6f7a 55%,#06232a)}
.bg-lex{background:radial-gradient(120% 100% at 50% 0%,#3a3f5a,#181a2b 60%,#0a0b12)}
/* tarjeta "próximos casos" */
.pf-soon{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;border:1px dashed var(--border);background:var(--surface);gap:10px}
.pf-soon .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:rgba(198,242,78,.1);color:var(--lime)}
.pf-soon h3{font-size:1.2rem}
.pf-soon p{color:var(--muted);font-size:.9rem;max-width:30ch}

/* ============================================================
   CASO DE ESTUDIO
   ============================================================ */
.case-hero{position:relative;min-height:62vh;display:flex;align-items:flex-end;overflow:hidden;padding-top:90px}
.case-hero .bg{position:absolute;inset:0;z-index:-2}
.case-hero .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,11,13,.4) 0%,rgba(11,11,13,.6) 50%,var(--bg) 100%)}
.case-hero-inner{padding-block:clamp(40px,7vw,80px)}
.case-back{display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-display);font-weight:600;font-size:.85rem;color:var(--text);margin-bottom:20px;opacity:.85;transition:color .3s var(--ease)}
.case-back:hover{color:var(--lime)}
.case-back svg{width:1em;height:1em}
.case-cat{font-family:var(--font-display);font-weight:600;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--lime)}
.case-hero h1{font-size:clamp(2.4rem,6.5vw,4.4rem);margin:10px 0 14px;line-height:1.02}
.case-tagline{color:var(--text);font-size:clamp(1.1rem,2.4vw,1.45rem);max-width:46ch;opacity:.92}
.case-meta{display:flex;gap:clamp(20px,4vw,48px);flex-wrap:wrap;margin-top:30px;border-top:1px solid var(--border);padding-top:24px}
.case-meta .m{display:flex;flex-direction:column;gap:3px}
.case-meta .m .k{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.case-meta .m .v{font-family:var(--font-display);font-weight:600;font-size:.98rem}

/* Bloques de contenido del caso */
.case-section{padding-block:clamp(50px,8vw,90px)}
.case-section.bordered{border-top:1px solid var(--border)}
.case-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,5vw,64px)}
.case-grid .k{font-family:var(--font-display);font-weight:600;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--teal)}
.case-grid h2{font-size:clamp(1.6rem,3.5vw,2.4rem);margin-top:10px;line-height:1.1}
.case-body p{color:var(--muted);font-size:1.05rem;margin-bottom:16px}
.case-body p strong{color:var(--ink);font-weight:500}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.case-tags span{font-size:.8rem;color:var(--lime);border:1px solid rgba(198,242,78,.3);background:rgba(198,242,78,.06);padding:.35em .9em;border-radius:100px;font-family:var(--font-display);font-weight:500}

/* Resultados / métricas */
.case-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:50px}
.metric-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:26px 22px;text-align:center;transition:transform .3s var(--ease),border-color .3s var(--ease)}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(198,242,78,.35)}
.metric-card .big{font-family:var(--font-display);font-weight:700;font-size:clamp(2rem,4vw,2.8rem);color:var(--lime);line-height:1}
.metric-card .lbl{color:var(--muted);font-size:.88rem;margin-top:8px}

/* Galería (placeholder) */
.case-gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:14px}
.gal{border-radius:14px;border:1px solid var(--border);background:linear-gradient(135deg,var(--surface),#0e0e11);min-height:200px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.82rem;position:relative;overflow:hidden}
.gal::before{content:"";position:absolute;inset:0;background:radial-gradient(300px 160px at 30% 0%,rgba(198,242,78,.08),transparent 60%)}
.gal.w3{grid-column:span 3}.gal.w2{grid-column:span 2}.gal.w6{grid-column:span 6}.gal.w4{grid-column:span 4}
.gal span{position:relative;z-index:1;display:flex;align-items:center;gap:.5em}
.gal span svg{width:16px;height:16px}

/* Navegación entre casos / CTA */
.case-next{border-top:1px solid var(--border);padding-block:clamp(50px,7vw,80px)}
.case-next-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.case-next-inner h2{font-size:clamp(1.6rem,4vw,2.4rem)}
.case-next-inner p{color:var(--muted);margin-top:6px}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .pf-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr;gap:18px}
  .case-metrics{grid-template-columns:repeat(2,1fr)}
  .case-gallery{grid-template-columns:repeat(2,1fr)}
  .gal.w3,.gal.w2,.gal.w6,.gal.w4{grid-column:span 2}
}
@media(max-width:560px){
  .case-metrics{grid-template-columns:1fr}
  .case-gallery{grid-template-columns:1fr}
  .gal.w3,.gal.w2,.gal.w6,.gal.w4{grid-column:span 1}
}