/* Eugenia Bazán · Arquitectura — estilo "Apple invertido": negro, tipografía fina, imagen protagonista */
:root{
  --bg:#000; --panel:#0a0a0b; --fg:#f5f5f7; --mut:#86868b; --dim:#55555a;
  --line:rgba(255,255,255,.13);
  --pad:clamp(20px,5vw,88px);
  --font:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--fg);font-family:var(--font);font-weight:300;font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
body.locked{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:#f5f5f7;color:#000}
:focus-visible{outline:1px solid #fff;outline-offset:4px}

.wrap{max-width:1560px;margin:0 auto;padding:0 var(--pad)}
.label{font-size:11px;font-weight:400;letter-spacing:.24em;text-transform:uppercase;color:var(--mut)}
.h-xl{font-weight:200;font-size:clamp(44px,9vw,148px);line-height:.98;letter-spacing:-.035em}
.h-lg{font-weight:200;font-size:clamp(34px,5.4vw,84px);line-height:1.04;letter-spacing:-.03em}
.h-md{font-weight:200;font-size:clamp(24px,2.6vw,38px);line-height:1.15;letter-spacing:-.02em}
.lead{font-weight:200;font-size:clamp(22px,2.7vw,40px);line-height:1.28;letter-spacing:-.018em}
.mut{color:var(--mut)}

/* ---------- Nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;height:60px;display:flex;align-items:center;
  transition:background .5s var(--ease),border-color .5s var(--ease);border-bottom:1px solid transparent}
.nav.solid{background:rgba(0,0,0,.72);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-color:var(--line)}
.nav .wrap{width:100%;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:300;font-size:15px;letter-spacing:.02em;white-space:nowrap}
.brand span{color:var(--mut);margin-left:.6em}
.links{display:flex;gap:clamp(20px,3vw,44px)}
.links a{font-size:12.5px;letter-spacing:.04em;color:#d2d2d7;opacity:.82;transition:opacity .3s}
.links a:hover{opacity:1}
.burger{display:none;width:44px;height:44px;margin-right:-12px;position:relative}
.burger i{position:absolute;left:12px;right:12px;height:1px;background:#fff;transition:transform .4s var(--ease),top .4s var(--ease)}
.burger i:first-child{top:18px}.burger i:last-child{top:26px}
.menu-open .burger i:first-child{top:22px;transform:rotate(45deg)}
.menu-open .burger i:last-child{top:22px;transform:rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:45;background:#000;display:flex;flex-direction:column;justify-content:center;
  padding:0 var(--pad);gap:6px;opacity:0;visibility:hidden;transition:opacity .45s var(--ease),visibility .45s}
.menu a{font-weight:200;font-size:clamp(36px,11vw,64px);letter-spacing:-.03em;line-height:1.2}
.menu-open .menu{opacity:1;visibility:visible}

/* ---------- Hero ---------- */
.hero{position:relative;height:100vh;height:100svh;min-height:560px;overflow:hidden;background:#000}
.slide{position:absolute;inset:0;visibility:hidden;overflow:hidden}
.slide img{width:100%;height:100%;object-fit:cover;will-change:transform}
.slide.prev{visibility:visible;z-index:1}
.slide.prev img{animation:hOut 1.9s var(--ease) both}
.slide.on{visibility:visible;z-index:2;animation:hWipe 1.7s cubic-bezier(.76,0,.2,1) both}
.slide.on img{animation:hIn 9s cubic-bezier(.14,.8,.2,1) both}
.slide.on::after{content:"";position:absolute;inset:0 auto 0 0;width:1px;background:rgba(255,255,255,.55);animation:hLine 1.7s cubic-bezier(.76,0,.2,1) both}
@keyframes hWipe{from{clip-path:inset(0 0 0 100%)}to{clip-path:inset(0 0 0 0)}}
@keyframes hLine{0%{left:100%;opacity:1}85%{opacity:1}100%{left:0;opacity:0}}
@keyframes hIn{from{transform:scale(1.2) translate3d(5%,0,0)}to{transform:scale(1.03)}}
@keyframes hOut{from{transform:scale(1.03);filter:brightness(1)}to{transform:scale(1.03) translate3d(-6%,0,0);filter:brightness(.35)}}
.hero::after{content:"";position:absolute;inset:0;z-index:3;pointer-events:none;
  background:linear-gradient(180deg,rgba(0,0,0,.55) 0%,rgba(0,0,0,.08) 28%,rgba(0,0,0,.18) 52%,rgba(0,0,0,.92) 100%)}
.hero-in{position:absolute;inset:auto 0 0 0;z-index:4;padding-bottom:clamp(28px,6vh,64px)}
.hero-in .label{color:#d2d2d7;margin-bottom:18px}
.hero-meta{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-top:clamp(20px,4vh,40px);
  padding-top:18px;border-top:1px solid rgba(255,255,255,.22);font-size:12.5px;letter-spacing:.04em;color:#d2d2d7}
#hero-cap{text-align:left;display:flex;gap:18px;align-items:baseline;overflow:hidden}
#hero-cap .num{color:var(--mut);font-variant-numeric:tabular-nums;letter-spacing:.12em}
#hero-cap .tx{display:inline-block}
#hero-cap .tx b{font-weight:300;color:#fff}
#hero-cap.sw .tx{animation:capIn 1.1s .5s var(--ease) both}
@keyframes capIn{from{opacity:0;transform:translateY(110%)}to{opacity:1;transform:none}}
.dots{display:flex;gap:8px}
.dots button{width:44px;height:24px;position:relative}
.dots button::before,.dots button::after{content:"";position:absolute;left:0;top:11px;height:1px}
.dots button::before{right:0;background:rgba(255,255,255,.28)}
.dots button::after{width:0;background:#fff}
.dots button.done::after{width:100%}
.dots button.on::after{animation:fill var(--dur,7s) linear forwards}
@keyframes fill{from{width:0}to{width:100%}}

/* ---------- Secciones ---------- */
section{padding:clamp(90px,14vw,200px) 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;margin-bottom:clamp(36px,5vw,72px)}
.manifiesto .lead{max-width:22em}
.manifiesto .lead em{font-style:normal;color:var(--mut)}
.manifiesto .label{margin-bottom:clamp(28px,4vw,56px)}

.filters{display:flex;gap:6px;flex-wrap:wrap}
.filters button{font-size:12.5px;letter-spacing:.03em;color:var(--mut);padding:8px 16px;border:1px solid transparent;border-radius:999px;transition:color .3s,border-color .3s}
.filters button:hover{color:#fff}
.filters button.on{color:#fff;border-color:rgba(255,255,255,.35)}

.grid{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(14px,2vw,28px) clamp(14px,2vw,28px)}
.card{display:block;cursor:pointer;text-align:left;width:100%;grid-column:span 3}
.card.third{grid-column:span 2}
.card.bw img{filter:grayscale(1) contrast(1.06) brightness(.9)}
.card.bw:hover img{filter:grayscale(0) brightness(1)}
.card.wide{grid-column:1/-1}
.card .ph{overflow:hidden;background:var(--panel);aspect-ratio:4/3;border-radius:2px}
.card.wide .ph{aspect-ratio:21/10}
.card img{width:100%;height:100%;object-fit:cover;filter:brightness(.86);transition:transform 1.4s var(--ease),filter .8s var(--ease)}
.card:hover img{transform:scale(1.035);filter:brightness(1)}
.card .cap{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:18px 2px clamp(22px,3vw,44px)}
.card h3{font-weight:200;font-size:clamp(20px,2vw,28px);letter-spacing:-.02em;line-height:1.2}
.card.hide{display:none}

/* Enfoque */
.enfoque{border-top:1px solid var(--line)}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(28px,4vw,72px)}
.cols .n{font-weight:200;font-size:13px;letter-spacing:.2em;color:var(--dim);margin-bottom:22px;padding-top:22px;border-top:1px solid var(--line)}
.cols p{color:var(--mut);margin-top:14px;font-size:16px}

/* Proceso (tira horizontal) */
.proceso{padding-bottom:0}
.strip{display:flex;gap:clamp(14px,2vw,28px);overflow-x:auto;padding:0 var(--pad) 12px;scroll-snap-type:x proximity;scrollbar-width:none}
.strip::-webkit-scrollbar{display:none}
.strip figure{flex:0 0 auto;height:clamp(260px,46vh,520px);scroll-snap-align:start}
.strip img{height:100%;width:auto;filter:grayscale(1) contrast(1.02) brightness(.92);transition:filter .8s var(--ease);border-radius:2px}
.strip figure:hover img{filter:none}

/* Estudio */
.estudio .two{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,6vw,120px);align-items:start}
.retrato{aspect-ratio:4/5;overflow:hidden;background:var(--panel);border-radius:2px}
.retrato img{width:100%;height:100%;object-fit:cover;object-position:50% 100%;filter:grayscale(1) brightness(.9)}
.estudio p{color:#c7c7cc;max-width:36em;margin-top:22px}
.lista{margin-top:clamp(36px,5vw,64px);border-top:1px solid var(--line)}
.lista li{list-style:none;display:grid;grid-template-columns:72px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);font-size:15.5px}
.lista li span{color:var(--mut);font-size:12.5px;letter-spacing:.06em;padding-top:3px}

/* Servicios */
.servicios{border-top:1px solid var(--line)}
.serv{border-top:1px solid var(--line)}
.serv div{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(16px,6vw,120px);padding:clamp(22px,3vw,40px) 0;border-bottom:1px solid var(--line);align-items:baseline}
.serv p{color:var(--mut);font-size:16px;max-width:34em}

/* Contacto */
.contacto .two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,7vw,140px);margin-top:clamp(40px,6vw,90px)}
.datos a{display:flex;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--line);font-size:16px;transition:padding .4s var(--ease)}
.datos a:first-child{border-top:1px solid var(--line)}
.datos a:hover{padding-left:10px}
.datos a span{color:var(--mut)}
form label{display:block;margin-bottom:26px}
form .label{display:block;margin-bottom:6px}
input,textarea{width:100%;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.28);color:#fff;font:inherit;font-weight:300;padding:10px 0;border-radius:0;transition:border-color .3s}
input:focus,textarea:focus{outline:0;border-color:#fff}
textarea{resize:vertical;min-height:110px}
.hp{position:absolute;left:-9999px}
.btn{display:inline-flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.06em;padding:14px 28px;border:1px solid rgba(255,255,255,.5);border-radius:999px;transition:background .4s var(--ease),color .4s var(--ease)}
.btn:hover{background:#f5f5f7;color:#000}
.msg{margin-top:18px;font-size:14px;color:var(--mut);min-height:1.6em}

footer{border-top:1px solid var(--line);padding:28px 0 36px;font-size:12px;color:var(--dim);letter-spacing:.03em}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- Galería ---------- */
.lb{position:fixed;inset:0;z-index:60;background:#000;opacity:0;visibility:hidden;transition:opacity .5s var(--ease),visibility .5s}
.lb.on{opacity:1;visibility:visible}
.lb-top{position:absolute;inset:0 0 auto 0;z-index:3;height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 var(--pad);font-size:12.5px;letter-spacing:.04em}
.lb-top h2{font-weight:300;font-size:14px;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lb-top div{display:flex;gap:clamp(16px,3vw,36px);align-items:center;flex:none}
.lb-top button{color:#d2d2d7;padding:10px 0}.lb-top button:hover{color:#fff}
#lb-count{color:var(--mut);font-variant-numeric:tabular-nums;letter-spacing:.12em}
.lb-track{position:absolute;inset:0;display:flex;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scrollbar-width:none;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
.lb-track::-webkit-scrollbar{display:none}
.lb-slide{flex:0 0 100%;height:100%;scroll-snap-align:center;scroll-snap-stop:always;display:flex;align-items:center;justify-content:center;padding:72px clamp(0px,7vw,120px) 64px}
.lb-slide img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;user-select:none;-webkit-user-drag:none}
.lb-slide.next{flex-direction:column;align-items:flex-start;justify-content:center;padding-left:var(--pad);padding-right:var(--pad)}
.lb-slide.next .label{margin-bottom:16px}
.lb-arrow{position:absolute;top:50%;z-index:3;width:clamp(56px,7vw,110px);height:160px;margin-top:-80px;display:flex;align-items:center;justify-content:center;opacity:.55;transition:opacity .4s,transform .5s var(--ease)}
.lb-arrow:hover{opacity:1}
.lb-arrow.prev{left:0}.lb-arrow.next{right:0}
.lb-arrow.prev:hover{transform:translateX(-4px)}.lb-arrow.next:hover{transform:translateX(4px)}
.lb-arrow[disabled]{opacity:0;pointer-events:none}
.lb-arrow svg{width:26px;height:52px;stroke:#fff;stroke-width:.7;fill:none;vector-effect:non-scaling-stroke}
.lb-bar{position:absolute;inset:auto 0 0 0;z-index:3;height:2px}
.lb-bar i{display:block;height:1px;background:#fff;width:0;transition:width .6s var(--ease)}
.lb-info{position:absolute;inset:0 0 0 auto;z-index:4;width:min(460px,100%);background:rgba(8,8,9,.86);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border-left:1px solid var(--line);padding:84px clamp(22px,3vw,40px) 40px;overflow-y:auto;transform:translateX(100%);transition:transform .7s var(--ease)}
.lb.info .lb-info{transform:none}
.lb-info .lead{font-size:clamp(20px,1.9vw,26px);margin:14px 0 26px}
.lb-info p{color:#c7c7cc;font-size:15.5px;margin-bottom:1em}
.lb-info dl{margin-top:28px;border-top:1px solid var(--line)}
.lb-info dl div{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.lb-info dt{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--mut);padding-top:3px}
@media (hover:none),(pointer:coarse){.lb-arrow{display:none}.lb-slide{padding:64px 0 40px}}

/* ---------- WhatsApp flotante + redes ---------- */
.wa{position:fixed;right:clamp(16px,2.4vw,32px);bottom:clamp(16px,2.4vw,32px);z-index:40;height:54px;min-width:54px;border-radius:999px;display:flex;align-items:center;
  background:rgba(12,12,13,.72);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border:1px solid rgba(255,255,255,.3);
  color:#f5f5f7;overflow:hidden;transition:background .45s var(--ease),color .45s var(--ease),border-color .45s}
.wa svg{width:52px;height:24px;flex:none;stroke:currentColor;stroke-width:1.1;fill:none;stroke-linecap:round;stroke-linejoin:round}
.wa span{max-width:0;opacity:0;white-space:nowrap;font-size:12.5px;letter-spacing:.06em;transition:max-width .6s var(--ease),opacity .4s,padding .6s var(--ease)}
.wa:hover{background:#f5f5f7;color:#000;border-color:#f5f5f7}
.wa:hover span{max-width:160px;opacity:1;padding-right:22px}
.social{display:flex;gap:6px;align-items:center}
.social a{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#d2d2d7;border:1px solid transparent;transition:color .3s,border-color .4s,background .4s}
.social a:hover{color:#fff;border-color:rgba(255,255,255,.4)}
.social svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.15;fill:none;stroke-linecap:round;stroke-linejoin:round}
.datos .social{margin-top:28px;margin-left:-11px}
.datos .social a{padding:0;border-bottom:1px solid transparent}
.datos .social a:first-child{border-top:1px solid transparent}
.datos .social a:hover{padding:0;border-color:rgba(255,255,255,.4)}
footer .wrap{align-items:center}

/* ---------- Puntero ---------- */
.has-cur,.has-cur *{cursor:none!important}
.cur-x,.cur-o{position:fixed;left:0;top:0;z-index:200;pointer-events:none;mix-blend-mode:difference;opacity:0;transition:opacity .4s}
.cur-on .cur-x,.cur-on .cur-o{opacity:1}
.cur-x i{position:absolute;background:#fff;transition:transform .5s var(--ease),opacity .3s}
.cur-x i:first-child{width:25px;height:1px;left:-12px;top:0}
.cur-x i:last-child{width:1px;height:25px;left:0;top:-12px}
.cur-o span{position:absolute;left:-30px;top:-30px;width:60px;height:60px;border:1px solid #fff;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:9.5px;letter-spacing:.22em;text-transform:uppercase;color:transparent;transform:scale(0);transition:transform .6s var(--ease),color .3s,background .4s}
.cur-hot .cur-x i{transform:rotate(45deg) scale(.5)}
.cur-hot .cur-o span{transform:scale(.62)}
.cur-view .cur-x i{opacity:0}
.cur-view .cur-o span{transform:scale(1.35);color:#fff;background:rgba(255,255,255,.06)}
.cur-down .cur-o span{transform:scale(.45)}

/* ---------- Reveal ---------- */
.js .rv{opacity:0;transform:translateY(26px);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease)}
.js .rv.in{opacity:1;transform:none}

@media (max-width:860px){
  body{font-size:16px}
  .links{display:none}.burger{display:block}
  .brand span{display:none}
  .grid{grid-template-columns:1fr}.card,.card.third,.card.wide{grid-column:1/-1}
  .card.wide .ph,.card .ph{aspect-ratio:4/3}
  .cols{grid-template-columns:1fr}
  .estudio .two,.contacto .two,.serv div{grid-template-columns:1fr}
  .hero-meta{font-size:11.5px}
  .dots button{width:28px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .slide.on,.slide.on img,.slide.prev img,.slide.on::after,#hero-cap.sw .tx{animation:none}
  .card img{transition-duration:.01s}
}

/* Ajustes v2 */
.lb-top{z-index:5}
.hero-meta{padding-right:76px}
#hero-cap .num{white-space:nowrap}
footer .social{margin-right:72px}
@media (max-width:860px){
  #hero-cap{gap:12px}
  .hero-meta{padding-right:70px}
  .dots{display:none}
  footer .social{margin-right:0}
  footer{padding-bottom:96px}
}

html:not(.js) .slide:first-child{visibility:visible}

footer .mail{color:#d2d2d7;font-size:13px;letter-spacing:.04em;border-bottom:1px solid transparent;transition:color .3s,border-color .4s}
footer .mail:hover{color:#fff;border-color:rgba(255,255,255,.5)}

/* v5: secciones administrables */
.manifiesto + .sec-proyectos{padding-top:0}
footer .wrap + .wrap{margin-top:18px}
footer .acceso{color:var(--dim);font-size:11px;letter-spacing:.18em;text-transform:uppercase;transition:color .3s}
footer .acceso:hover{color:#d2d2d7}