/* Plantilla de caso de estudio (inspirada en una página de portfolio editorial).
   Usa la paleta acordada: blanco #f1f1f1 y negro #25252a (variables de style.css). */

.case-note{background:var(--accent);font-size:13px;text-align:center;padding:9px 16px;font-weight:600}

/* hero */
.case-hero{padding:clamp(40px,6vw,88px) 0 0}
.case-top{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:clamp(36px,6vw,72px);font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.case-top a:hover{color:var(--ink)}
.case-hero h1{font-size:clamp(42px,7.8vw,130px);font-weight:700;letter-spacing:-0.045em;line-height:.92}
.case-sub{font-family:var(--font-head);font-weight:600;font-size:clamp(20px,2.3vw,34px);letter-spacing:-0.02em;line-height:1.15;max-width:22em;margin-top:clamp(20px,3vw,36px)}
.case-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:clamp(40px,6vw,72px);border-top:1px solid var(--ink)}
.case-meta div{padding:22px 24px 22px 0;border-bottom:1px solid var(--line)}
.case-meta dt{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:8px}
.case-meta dd{font-family:var(--font-head);font-weight:600;font-size:clamp(17px,1.5vw,22px)}
.case-actions{margin-top:36px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}

/* image placeholders */
.ph{position:relative;background:var(--soft);display:flex;align-items:flex-end;justify-content:space-between;padding:20px 24px;color:var(--mute);font-size:13px;font-weight:600;letter-spacing:.04em;overflow:hidden}
.ph::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 22px,rgba(37,37,42,.05) 22px 23px)}
.ph span{position:relative}
.ph-hero{aspect-ratio:16/8.2;margin-top:clamp(40px,6vw,72px)}
.ph-wide{aspect-ratio:16/8}
.ph-half{aspect-ratio:4/3}
.ph-tall{aspect-ratio:4/5}

/* testimonial */
.quote-block{display:grid;grid-template-columns:1fr 2fr;gap:clamp(24px,5vw,80px);align-items:start}
.quote-block blockquote{font-family:var(--font-head);font-weight:600;font-size:clamp(26px,3.6vw,54px);letter-spacing:-0.03em;line-height:1.1}
.quote-who{display:flex;align-items:center;gap:14px;margin-top:32px;font-size:15px}
.quote-who .av{width:48px;height:48px;background:var(--soft);border-radius:50%}
.quote-who strong{display:block}
.quote-who span{color:var(--mute);font-size:14px}

/* generic case sections */
.case-sec{border-top:1px solid var(--ink);padding:clamp(48px,7vw,104px) 0}
.case-grid{display:grid;grid-template-columns:1fr 2fr;gap:clamp(24px,5vw,80px)}
.case-label{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);position:sticky;top:110px;align-self:start}
.case-label b{display:block;font-family:var(--font-head);font-size:14px;color:var(--ink);margin-bottom:8px}
.case-body h2{font-size:clamp(34px,5vw,76px);margin-bottom:28px}
.case-body p{font-size:clamp(17px,1.5vw,21px);color:var(--mute);max-width:36em;margin-bottom:20px}
.case-body p.big{font-family:var(--font-head);font-weight:600;font-size:clamp(18px,1.75vw,25px);letter-spacing:-0.025em;line-height:1.3;color:var(--ink);max-width:34em}
.case-body p.area-more{max-width:32em;margin:-4px 0 24px}
.case-media{display:grid;gap:20px;margin-top:40px}
.case-media.two{grid-template-columns:1fr 1fr}

/* steps */
.case-steps{list-style:none;margin-top:36px;border-top:1px solid var(--ink)}
.case-steps li{display:grid;grid-template-columns:70px 1fr 1.4fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);align-items:baseline}
.case-steps .n{font-family:var(--font-head);font-weight:600;color:var(--mute)}
.case-steps h4,main .case-steps h3{font-size:22px;margin:0}
.case-steps p{margin:0;font-size:16px}
.case-steps .cs-text{min-width:0}
.case-steps .cs-text p+p{margin-top:12px}

/* results */
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.kpi{background:var(--soft);padding:32px 28px}
.kpi small{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:22px}
.kpi .from{font-size:14px;color:var(--mute)}
.kpi .to{font-family:var(--font-head);font-weight:700;font-size:clamp(44px,6vw,92px);letter-spacing:-0.04em;line-height:1;margin:6px 0 8px}
.kpi .delta{display:inline-block;background:var(--accent);font-size:13px;font-weight:700;padding:4px 10px}
.pending{font-size:13px;color:var(--mute);margin-top:16px}

/* next case */
.next{display:block;border-top:1px solid var(--ink);padding:clamp(48px,7vw,96px) 0;transition:background .2s}
.next-inner{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap}
.next small{display:block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:14px}
.next h3{font-size:clamp(48px,10vw,160px);letter-spacing:-0.045em;line-height:.9}
.next .arrow{font-size:clamp(40px,6vw,90px);line-height:1;transition:transform .25s}
.next:hover .arrow{transform:translateX(14px)}
.next p{max-width:26em;color:var(--mute);margin-top:18px}

/* footer band */
.case-cta{background:var(--ink);color:var(--paper);padding:clamp(56px,8vw,112px) 0}
.case-cta h2{font-size:clamp(36px,6vw,92px);max-width:14em;margin-bottom:32px}
.case-cta p{color:#c9c9c9;font-size:18px;margin-bottom:32px;max-width:32em}

/* reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

@media (max-width:980px){
  .case-meta{grid-template-columns:1fr 1fr}
  .quote-block,.case-grid{grid-template-columns:1fr}
  .case-label{position:static}
  .kpis{grid-template-columns:1fr}
  .case-media.two{grid-template-columns:1fr}
  .case-steps li{grid-template-columns:44px 1fr}
  .case-steps p,.case-steps .cs-text{grid-column:2}
}

/* bloque dividido: retrato fijo + bloques que suben */
.split-sec{padding:clamp(48px,7vw,96px) 0 0}
.split{display:grid;grid-template-columns:minmax(300px,.8fr) 2fr;gap:clamp(28px,5vw,88px);align-items:start}
.split-aside{position:sticky;top:104px;align-self:start}
.portrait .ph-tall{width:100%}
.portrait img{width:100%;aspect-ratio:4/5;object-fit:cover;display:block}
.portrait-cap{margin-top:18px;font-size:15px}
.portrait-cap small{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:6px}
.portrait-cap strong{display:block;font-family:var(--font-head);font-size:20px}
.portrait-cap span{color:var(--mute);font-size:14px}
.split-main .blk{border-top:1px solid var(--ink);padding:clamp(40px,6vw,88px) 0}
.split-main .blk:first-child{border-top:0;padding-top:0}
.split-main .blk:last-child{padding-bottom:clamp(48px,7vw,104px)}
.split-main blockquote{font-family:var(--font-head);font-weight:600;font-size:clamp(28px,3.6vw,56px);letter-spacing:-0.03em;line-height:1.08}
.blk-label{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-bottom:22px}
.blk-label b{font-family:var(--font-head);color:var(--ink);margin-right:12px}
@media (max-width:980px){
  .split{grid-template-columns:1fr}
  .split-aside{position:static}
  .portrait{max-width:420px}
}

/* artículo: títulos largos */
.article-01 h1{font-size:clamp(40px,6.5vw,104px);line-height:.98;max-width:16em}
.article-01 .case-sub{max-width:34em}

/* vídeos de artículo */
.video{position:relative;aspect-ratio:16/9;background:var(--ink);overflow:hidden}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-hero{margin-top:clamp(40px,6vw,72px)}
.video-cap{margin-top:12px;font-size:13px;color:var(--mute)}
.video-grid{display:grid;gap:20px;margin-top:28px}
.takeaways{list-style:none;border-top:1px solid var(--ink);margin-top:24px}
.takeaways li{padding:16px 0 16px 34px;border-bottom:1px solid var(--line);font-size:clamp(17px,1.4vw,20px);color:#3a3a40;position:relative}
.takeaways li::before{content:"";position:absolute;left:0;top:26px;width:12px;height:12px;background:var(--ink)}
.case-body h3{font-size:clamp(22px,2vw,30px);margin:34px 0 10px}
.case-body .disc{font-size:14px;color:var(--mute)}

/* vídeo: miniatura con botón de reproducir */
.video-link{position:absolute;inset:0;display:block;color:#fff}
.video-link img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}
.video-link:hover img{transform:scale(1.03)}
.video-link::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.55),rgba(0,0,0,0) 45%)}
.play{position:absolute;left:50%;top:50%;width:76px;height:76px;margin:-38px 0 0 -38px;border-radius:50%;background:var(--paper);z-index:2;transition:transform .3s}
.play::before{content:"";position:absolute;left:31px;top:24px;border-style:solid;border-width:14px 0 14px 22px;border-color:transparent transparent transparent var(--ink)}
.video-link:hover .play{transform:scale(1.08)}
.video-title{position:absolute;left:18px;right:18px;bottom:14px;z-index:2;font-size:14px;font-weight:600;line-height:1.3;text-shadow:0 1px 8px rgba(0,0,0,.5)}

/* imagen de cabecera enlazada al vídeo original */
a.hero-img-link{display:block;cursor:pointer}
a.hero-img-link img{transition:transform .5s}
a.hero-img-link:hover img{transform:scale(1.02)}
.video-cap a{text-decoration:underline;text-underline-offset:3px}

/* retrato fijo: margen inferior para que al llegar abajo no toque la línea siguiente */
.split-aside{margin-bottom:clamp(48px,6vw,96px)}
.split-sec{padding-bottom:clamp(24px,3vw,48px)}
@media (max-width:980px){.split-aside{margin-bottom:0}}

/* iconos sociales bajo el autor */
.portrait-cap .social{margin-top:14px;gap:20px}
.portrait-cap .social a svg{width:20px;height:20px}

/* nombre del autor subrayado en el título */
.article-01 h1 em{font-style:normal;background:linear-gradient(transparent 62%,var(--accent) 62%);-webkit-box-decoration-break:clone;box-decoration-break:clone}