/* V4 | Layout editorial inspirado na referência enviada; V3 permanece intacta. */
.reference-v4{--v4-cream:#f8f5f2;--v4-ink:#735a55;--v4-border:#e7ddd8;background:#fffefd}
.reference-v4 .hero-section.container{width:100%;max-width:none;margin:0;padding:0}
.reference-v4 .hero-panel{
  position:relative;display:block;height:clamp(305px,27.5vw,445px);
  min-height:0;max-height:none;border-radius:0;overflow:hidden;isolation:isolate;
  background:linear-gradient(105deg,#fcfaf8 0%,#f5efea 60%,#e9d9d0 100%)
}
.reference-v4 .hero-photo.hero-photo-refined{
  position:absolute;inset:0 0 0 auto;z-index:0;width:49%;max-width:none;
  height:100%;opacity:1;object-fit:cover;object-position:65% 38%;
  -webkit-mask-image:linear-gradient(to right,transparent 0%,rgba(0,0,0,.84) 17%,#000 35%);
  mask-image:linear-gradient(to right,transparent 0%,rgba(0,0,0,.84) 17%,#000 35%)
}
.reference-v4 .hero-grain{position:absolute;z-index:1;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(255,253,251,.25),transparent 43%)}
.reference-v4 .hero-content{
  position:relative;z-index:2;width:56%;max-width:none;min-height:0;height:100%;
  margin:0;padding:20px clamp(22px,3vw,54px) 22px clamp(40px,5vw,112px);
  display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center
}
.reference-v4 .hero-identity{
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  width:100%;max-width:100%;margin:0;gap:clamp(10px,1.25vw,18px);transform:none
}
.reference-v4 .hero-content .hero-name {
  margin: 0;
  max-width: 100%;
  font-family: 'Raleway', sans-serif;
  font-size: clamp(39px, 4.3vw, 69px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: 0.10em;
  word-spacing: normal;
  text-transform: uppercase;
  color: #705754;
}
.reference-v4 .hero-profession{
  margin:0;color:#8c706d;font:300 clamp(28px,2.6vw,32px)/1.5 'DM Sans',Arial,sans-serif;
  letter-spacing:.55em;text-transform:uppercase;text-align:center
}
/* A galeria de PDFs vem diretamente abaixo do banner. */
.reference-v4 .library-section{
  scroll-margin-top:18px;margin:0;padding:clamp(22px,2.2vw,37px) 0 clamp(60px,5.5vw,94px);
  border-top:0;background:#fffefd
}
.reference-v4 .library-section>.container{width:min(1660px,calc(100% - clamp(28px,5.2vw,102px)))}
.reference-v4 .section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 6px}
.reference-v4 .section-heading h2{
  margin:0;max-width:none;font:400 clamp(20px,1.72vw,27px)/1.3 'Playfair Display',Georgia,serif;
  letter-spacing:-.014em;color:#6e5651
}
.reference-v4 .library-summary{gap:7px;align-items:center;border:0;padding:0}
.reference-v4 .library-summary strong{font:600 12px/1.2 'DM Sans',Arial,sans-serif;color:#8a635c}
.reference-v4 .library-summary span{font:400 12px/1.2 'DM Sans',Arial,sans-serif;color:#8c7c75}
.reference-v4 .results-row{margin:6px 0 2px;color:#998883}
.reference-v4 .results-row #resultCount{font-size:11px}
.reference-v4 .results-note{font-size:11px}
.reference-v4 .material-carousel{width:100%;margin:0;padding-inline:clamp(34px,4vw,64px)}
.reference-v4 .material-viewport{
  width:100%;padding:6px 0 20px;
  -webkit-mask-image:linear-gradient(to right,transparent 0%,#000 3%,#000 97%,transparent 100%);
  mask-image:linear-gradient(to right,transparent 0%,#000 3%,#000 97%,transparent 100%)
}
.reference-v4 .material-grid{gap:clamp(12px,1.5vw,25px);padding:10px 4px 32px}
.reference-v4 .material-card{flex:0 0 clamp(190px,18vw,265px);width:clamp(190px,18vw,265px);border-radius:4px}
.reference-v4 .material-card-open{
  border-radius:4px;box-shadow:0 8px 21px rgba(78,56,50,.11);
  transition:transform .42s cubic-bezier(.2,.85,.24,1),box-shadow .4s ease
}
.reference-v4 .material-card:hover .material-card-open,
.reference-v4 .material-card.is-hovered .material-card-open,
.reference-v4 .material-card:focus-within .material-card-open{
  transform:translate3d(0,-11px,0) scale(1.018);
  box-shadow:0 26px 42px rgba(78,56,50,.18),0 8px 16px rgba(78,56,50,.10)
}
.reference-v4 .material-card::after{bottom:-18px;height:12px}
.reference-v4 .material-card-open .material-cover,
.reference-v4 .material-card-open .material-cover img{border-radius:4px}
.reference-v4 .carousel-arrow{width:39px;height:39px;background:rgba(255,254,252,.96);border-color:#e8dcd6;color:#785653}
.reference-v4 .empty-state{margin-top:14px}
/* Busca e filtros mantidos, subordinados às capas. */
.reference-v4 .library-discovery{margin-top:clamp(32px,3.2vw,48px);padding-top:clamp(25px,2.3vw,35px);border-top:1px solid #e7ddd8}
.reference-v4 .library-discovery h3{font:400 clamp(19px,1.5vw,24px)/1.3 'Playfair Display',Georgia,serif;color:#725955;margin:0 0 18px}
.reference-v4 .library-tools{margin-bottom:20px}
.reference-v4 .filter-row{border-bottom:0;padding-bottom:0}
.reference-v4 .filter-btn[aria-pressed=true]{background:#8b6460;border-color:#8b6460}
.reference-v4 .guide-section{padding-top:clamp(62px,6vw,92px);border-top:1px solid #eee6e1}
/* Desktop médio: nome jamais invade o rosto. */
@media(max-width:1080px) and (min-width:721px){
  .reference-v4 .hero-panel{height:clamp(290px,34vw,390px)}
  .reference-v4 .hero-content{width:61%;padding-left:clamp(22px,3vw,45px);padding-right:12px}
  .reference-v4 .hero-content .hero-name{font-size:clamp(28px,3.65vw,42px);letter-spacing:.075em}
  .reference-v4 .hero-profession{font-size:clamp(18px,2.6vw,28px);letter-spacing:.50em}
  .reference-v4 .hero-photo.hero-photo-refined{width:46%;object-position:62% 35%}
  .reference-v4 .material-card{flex-basis:clamp(190px,23vw,250px);width:clamp(190px,23vw,250px)}
}
/* Mobile: foto primeiro, assinatura depois; sem texto por cima do rosto. */
@media(max-width:720px){
  .reference-v4 .hero-panel{display:flex;flex-direction:column;height:auto;min-height:0;overflow:hidden;border-radius:0;background:#f6f0ec}
  .reference-v4 .hero-photo.hero-photo-refined{
    position:relative;inset:auto;z-index:0;display:block;width:100%;
    height:clamp(245px,63vw,345px);object-fit:cover;object-position:65% 27%;
    -webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 74%,transparent 100%);
    mask-image:linear-gradient(to bottom,#000 0%,#000 74%,transparent 100%)
  }
  .reference-v4 .hero-grain{display:none}
  .reference-v4 .hero-content{
    width:100%;height:auto;min-height:0;margin:-15px 0 0;padding:0 18px 32px;
    position:relative;z-index:2;align-items:center;justify-content:center
  }
  .reference-v4 .hero-identity{gap:10px}
  .reference-v4 .hero-content .hero-name{
    font-size:clamp(23px,6.6vw,39px);letter-spacing:.07em;white-space:nowrap;word-spacing:normal
  }
  .reference-v4 .hero-profession{font-size:clamp(11px,2.5vw,18px);letter-spacing:.48em}
  .reference-v4 .library-section{margin:0;padding:26px 0 65px}
  .reference-v4 .library-section>.container{width:calc(100% - 24px)}
  .reference-v4 .section-heading{margin:0 3px 7px;gap:8px}
  .reference-v4 .section-heading h2{font-size:19px}
  .reference-v4 .library-summary{display:none}
  .reference-v4 .results-row{margin:8px 3px 0}
  .reference-v4 .material-carousel{padding-inline:38px}
  .reference-v4 .material-viewport{
    padding:8px 0 12px;
    -webkit-mask-image:linear-gradient(to right,transparent 0%,#000 8%,#000 92%,transparent 100%);
    mask-image:linear-gradient(to right,transparent 0%,#000 8%,#000 92%,transparent 100%)
  }
  .reference-v4 .material-grid{gap:13px;padding:9px 3px 24px}
  .reference-v4 .material-card{flex:0 0 clamp(172px,53vw,230px);width:clamp(172px,53vw,230px);border-radius:4px}
  .reference-v4 .material-card-open{border-radius:4px}
  .reference-v4 .carousel-arrow{width:34px;height:34px}
  .reference-v4 .library-discovery{margin-top:26px;padding-top:25px}
  .reference-v4 .library-discovery h3{font-size:21px;margin-bottom:15px}
  .reference-v4 .guide-section{padding-top:60px}
}
@media(max-width:380px){
  .reference-v4 .hero-content .hero-name{font-size:clamp(20px,6.3vw,26px);letter-spacing:.055em}
  .reference-v4 .hero-profession{font-size:11px;letter-spacing:.42em}
  .reference-v4 .material-card{flex-basis:clamp(165px,52vw,198px);width:clamp(165px,52vw,198px)}
}
@media(prefers-reduced-motion:reduce){.reference-v4 .material-card-open{transition:none!important}}