:root{
  --plum:#2A2233;
  --plum-deep:#191320;
  --orchid:#7C5C8E;
  --mauve:#B197C0;
  --crimson:#B5253B;
  --mist:#EFEDF2;
  --paper:#F7F6F9;
  --ink:#231C2C;
  --muted:#6E6579;
  --line:#E2DEE9;
  --white:#ffffff;
  --display:'Archivo',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
  --mono:'Space Mono',ui-monospace,monospace;
  --maxw:1240px;
  --pad:clamp(20px,5vw,72px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--body);color:var(--ink);background:var(--paper);
  line-height:1.6;font-size:17px;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:1.02;letter-spacing:-.02em;color:var(--plum)}
.eyebrow{
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.28em;
  text-transform:uppercase;color:var(--orchid);display:flex;align-items:center;gap:14px;
}
.eyebrow::before{content:'';width:26px;height:1.5px;background:var(--orchid);display:inline-block}
.lead{font-size:clamp(18px,2.1vw,21px);color:var(--muted);max-width:62ch}

/* ---------- nav ---------- */
header{position:fixed;inset:0 0 auto 0;z-index:60;transition:background .4s ease,box-shadow .4s ease,padding .4s ease}
.nav{display:flex;align-items:center;justify-content:space-between;padding:22px var(--pad);max-width:var(--maxw);margin:0 auto;transition:padding .4s ease}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:34px;height:auto}
.brand .word{font-family:var(--display);font-weight:700;letter-spacing:.16em;font-size:18px;color:var(--white)}
.brand .word span{display:block;font-family:var(--mono);font-weight:400;font-size:8.5px;letter-spacing:.34em;color:var(--mauve);margin-top:2px}
.navlinks{display:flex;align-items:center;gap:34px}
.navlinks a{font-size:14px;font-weight:500;color:rgba(255,255,255,.85);letter-spacing:.01em;transition:color .25s}
.navlinks a:hover{color:var(--white)}
.nav-cta{font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  border:1.5px solid rgba(255,255,255,.45);color:var(--white);padding:11px 20px;border-radius:2px;transition:all .25s}
.nav-cta:hover{background:var(--crimson);border-color:var(--crimson)}
header.scrolled{background:rgba(25,19,32,.92);backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(255,255,255,.06)}
header.scrolled .nav{padding-top:14px;padding-bottom:14px}
.menu-btn{display:none;background:none;border:0;cursor:pointer;width:34px;height:24px;position:relative}
.menu-btn span{position:absolute;left:0;right:0;height:2px;background:var(--white);transition:.3s}
.menu-btn span:nth-child(1){top:2px}.menu-btn span:nth-child(2){top:11px}.menu-btn span:nth-child(3){top:20px}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;color:var(--white);overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-bg::after{content:'';position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(25,19,32,.55) 0%,rgba(25,19,32,.30) 35%,rgba(25,19,32,.78) 78%,rgba(25,19,32,.96) 100%),
    linear-gradient(105deg,rgba(42,34,51,.85) 0%,rgba(42,34,51,.15) 55%,rgba(124,92,142,.25) 100%);
  mix-blend-mode:normal}
.hero .wrap{position:relative;z-index:2;width:100%;padding-bottom:clamp(48px,9vh,110px);padding-top:140px}
.hero-mark{width:54px;margin-bottom:30px;opacity:0}
.hero h1{color:var(--white);font-size:clamp(40px,6.6vw,92px);max-width:16ch;text-shadow:0 2px 40px rgba(0,0,0,.3)}
.hero h1 em{font-style:normal;color:var(--mauve)}
.hero p.sub{margin-top:26px;font-size:clamp(17px,2vw,21px);color:rgba(255,255,255,.86);max-width:54ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px}
.btn{font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  padding:16px 30px;border-radius:2px;cursor:pointer;border:1.5px solid transparent;transition:all .25s;display:inline-flex;align-items:center;gap:10px}
.btn-primary{background:var(--crimson);color:var(--white)}
.btn-primary:hover{background:#9c1e31;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.5);color:var(--white)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:clamp(46px,7vh,76px);
  border-top:1px solid rgba(255,255,255,.18)}
.hero-stats .stat{padding:24px 22px 4px 0;border-right:1px solid rgba(255,255,255,.12)}
.hero-stats .stat:last-child{border-right:0}
.hero-stats .num{font-family:var(--display);font-weight:800;font-size:clamp(26px,3.4vw,40px);color:var(--white);line-height:1}
.hero-stats .lbl{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:rgba(255,255,255,.62);margin-top:10px;text-transform:uppercase}

/* ---------- sections ---------- */
section{padding:clamp(72px,11vh,140px) 0}
.sec-head{max-width:760px;margin-bottom:clamp(40px,6vh,72px)}
.sec-head h2{font-size:clamp(30px,4.6vw,58px);margin-top:20px}
.sec-head .lead{margin-top:22px}

/* empresa */
.empresa{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.empresa-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(40px,6vw,90px);align-items:start}
.empresa-grid .body p{margin-bottom:20px;color:var(--muted)}
.empresa-grid .body p strong{color:var(--ink);font-weight:600}
.creds{display:flex;flex-direction:column;gap:0;border-top:2px solid var(--plum)}
.cred{display:flex;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.cred .k{font-family:var(--display);font-weight:800;font-size:32px;color:var(--plum);line-height:1;flex:0 0 auto;min-width:130px}
.cred .v{font-size:15px;color:var(--muted);align-self:center}
.cred .v b{display:block;color:var(--ink);font-family:var(--body);font-weight:600;font-size:16px;margin-bottom:2px}

/* servicios */
.servicios{background:var(--paper)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc{position:relative;background:var(--white);border:1px solid var(--line);border-radius:4px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .4s ease,box-shadow .4s ease}
.svc:hover{transform:translateY(-6px);box-shadow:0 24px 50px -28px rgba(42,34,51,.45)}
.svc-img{position:relative;aspect-ratio:16/11;overflow:hidden}
.svc-img img{width:100%;height:100%;object-fit:cover;filter:grayscale(.85) contrast(1.02) brightness(1.02);transition:filter .7s ease,transform .9s ease}
.svc-img::after{content:'';position:absolute;inset:0;background:var(--orchid);mix-blend-mode:color;opacity:.6;transition:opacity .7s ease}
.svc:hover .svc-img img{filter:none;transform:scale(1.05)}
.svc:hover .svc-img::after{opacity:0}
.svc-body{padding:26px 26px 30px;flex:1;display:flex;flex-direction:column}
.svc h3{font-size:21px;font-weight:700;letter-spacing:-.01em}
.svc .num{font-family:var(--mono);font-size:12px;color:var(--orchid);letter-spacing:.1em;margin-bottom:12px}
.svc ul{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:8px}
.svc li{font-size:14.5px;color:var(--muted);padding-left:18px;position:relative}
.svc li::before{content:'';position:absolute;left:0;top:9px;width:6px;height:6px;background:var(--crimson);border-radius:50%}

/* desarrollos feature */
.feature{background:var(--plum-deep);color:var(--white);position:relative;overflow:hidden}
.feature .wrap{position:relative;z-index:2;display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(34px,5vw,72px);align-items:center}
.feature .eyebrow{color:var(--mauve)}
.feature .eyebrow::before{background:var(--mauve)}
.feature h2{color:var(--white);font-size:clamp(30px,4.4vw,54px);margin-top:20px}
.feature p{color:rgba(255,255,255,.8);margin-top:22px;font-size:18px;max-width:46ch}
.feature .pts{margin-top:30px;display:grid;gap:16px}
.feature .pt{display:flex;gap:14px;align-items:baseline}
.feature .pt b{font-family:var(--display);color:var(--mauve);font-weight:700}
.feature .pt span{color:rgba(255,255,255,.82);font-size:15.5px}
.feature-img{border-radius:5px;overflow:hidden;box-shadow:0 40px 80px -40px rgba(0,0,0,.7)}
.feature-img img{width:100%;height:100%;object-fit:cover}
.feature .glyph{position:absolute;right:-60px;top:-40px;width:340px;opacity:.05;z-index:1;filter:brightness(0) invert(1)}

/* bim */
.bim{background:var(--white);border-top:1px solid var(--line)}
.bim-top{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(36px,5vw,80px);align-items:end;margin-bottom:60px}
.bim-stat{text-align:right}
.bim-stat .big{font-family:var(--display);font-weight:800;font-size:clamp(60px,11vw,128px);line-height:.85;color:var(--plum);letter-spacing:-.04em}
.bim-stat .big sup{font-size:.38em;color:var(--crimson);vertical-align:super;font-weight:700}
.bim-stat .cap{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:14px}
.bim-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.bim-card{padding:30px 28px;background:var(--mist);border-radius:4px;border-left:3px solid var(--orchid)}
.bim-card h3{font-size:18px;font-weight:700;margin-bottom:12px}
.bim-card p{font-size:14.5px;color:var(--muted)}

/* portfolio */
.obras{background:var(--plum);color:var(--white)}
.obras .sec-head h2{color:var(--white)}
.obras .sec-head .eyebrow{color:var(--mauve)}.obras .sec-head .eyebrow::before{background:var(--mauve)}
.obras .lead{color:rgba(255,255,255,.72)}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:230px;gap:16px}
.tile{position:relative;overflow:hidden;border-radius:4px;cursor:default;background:var(--plum-deep)}
.tile img{width:100%;height:100%;object-fit:cover;filter:grayscale(.85) brightness(1.04) contrast(1.02);transition:filter .7s ease,transform 1s ease}
.tile::after{content:'';position:absolute;inset:0;background:var(--orchid);mix-blend-mode:color;opacity:.55;transition:opacity .7s ease}
.tile::before{content:'';position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,transparent 50%,rgba(20,15,26,.9) 100%);opacity:.95;transition:opacity .5s}
.tile:hover img{filter:none;transform:scale(1.06)}
.tile:hover::after{opacity:0}
.tile .cap{position:absolute;left:18px;bottom:16px;right:18px;z-index:3}
.tile .cap .t{font-family:var(--display);font-weight:700;font-size:16px;color:#fff;line-height:1.15}
.tile .cap .s{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mauve);margin-top:6px}
.tile.w2{grid-column:span 2}.tile.h2{grid-row:span 2}

/* trayectoria */
.tray{background:var(--paper)}
.ledger{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,5vw,72px)}
.ledger .col h3{font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--crimson);padding-bottom:16px;border-bottom:2px solid var(--plum);margin-bottom:6px}
.ledger .row{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line);align-items:baseline}
.ledger .row .name{font-size:16px;font-weight:500;color:var(--ink)}
.ledger .row .meta{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted);white-space:nowrap}

/* equipo */
.equipo{background:var(--white);border-top:1px solid var(--line)}
.team-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(28px,4vw,56px);margin-top:8px}
.person{padding:32px 0;border-top:2px solid var(--plum)}
.person .role{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--orchid);margin-bottom:8px}
.person .name{font-family:var(--display);font-weight:600;font-size:24px;color:var(--plum)}
.person .bio{margin-top:16px;color:var(--muted);font-size:15px;line-height:1.7}
.team-note{margin-top:48px;padding:28px 32px;background:var(--mist);border-radius:4px;color:var(--muted);font-size:15px}
.team-note b{color:var(--ink)}

/* contacto */
.contacto{background:var(--plum-deep);color:var(--white);position:relative;overflow:hidden}
.contacto .glyph{position:absolute;left:-80px;bottom:-100px;width:420px;opacity:.045;filter:brightness(0) invert(1)}
.contacto .wrap{position:relative;z-index:2}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,90px);align-items:center}
.contacto h2{color:var(--white);font-size:clamp(32px,5vw,62px)}
.contacto .lead{color:rgba(255,255,255,.78);margin-top:22px}
.contacto .cta-big{margin-top:34px}
.cinfo{display:flex;flex-direction:column;gap:2px}
.cinfo a,.cinfo .item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.14);align-items:center;transition:padding-left .3s}
.cinfo a:hover{padding-left:8px}
.cinfo .ck{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mauve);min-width:96px}
.cinfo .cv{font-size:16px;color:#fff;font-weight:500}

/* footer */
footer{background:#120D18;color:rgba(255,255,255,.6);padding:54px 0 40px}
.foot{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.foot .brand .word{font-size:16px}
.foot .tag{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--orchid)}
.foot .copy{font-size:12.5px;color:rgba(255,255,255,.4)}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:1024px){
  .svc-grid,.bim-cards{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .empresa-grid,.feature .wrap,.bim-top,.contact-grid{grid-template-columns:1fr}
  .bim-stat{text-align:left}.bim-top{align-items:start}
  .feature-img{order:-1}
}
@media(max-width:680px){
  body{font-size:16px}
  .navlinks{position:fixed;inset:64px 0 auto 0;background:rgba(25,19,32,.98);backdrop-filter:blur(12px);
    flex-direction:column;align-items:flex-start;gap:0;padding:14px var(--pad) 28px;
    clip-path:inset(0 0 100% 0);transition:clip-path .4s ease}
  .navlinks.open{clip-path:inset(0 0 0 0)}
  .navlinks a{width:100%;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:16px}
  .nav-cta{margin-top:12px}
  .menu-btn{display:block}
  .hero-stats{grid-template-columns:1fr 1fr;gap:0}
  .hero-stats .stat{border-right:0;padding-right:0}
  .hero-stats .stat:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);padding-right:18px}
  .svc-grid,.bim-cards,.gallery,.team-grid,.ledger{grid-template-columns:1fr}
  .gallery{grid-auto-rows:200px}
  .tile.w2{grid-column:span 1}.tile.h2{grid-row:span 1}
  .cred .k{font-size:28px;min-width:74px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important;transition:none}
  .svc-img img,.tile img{filter:none}
  .svc-img::after,.tile::after{opacity:0}
}