/* EFQ Studio — sistema visual inspirado en la diagramación editorial
   de estudios de arquitectura de referencia: blanco/off-white + charcoal,
   tipografía grotesca a dos extremos (display ultra-light / labels bold trackeados),
   líneas finas, menú off-canvas multinivel. Fuente: Archivo (Google Fonts, libre),
   sustituto de una tipografía comercial no licenciable para este proyecto. */

:root{
  --white:#FFFFFF;
  --offwhite:#F7F7F7;
  --ink:#1A1A1A;
  --navy:#1C252C;
  --text:#333333;
  --line: rgba(0,0,0,0.12);
  --line-dark: rgba(255,255,255,0.16);
  --maxw: 1360px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--white);
  color:var(--text);
  font-family:'Archivo', sans-serif;
  font-weight:400;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
body.locked{overflow:hidden; height:100vh;}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}
ul{list-style:none;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 40px;}
@media (max-width:640px){ .wrap{padding:0 22px;} }

.eyebrow{
  font-size:12px;
  letter-spacing:0.24em;
  text-transform:uppercase;
  font-weight:700;
  color:var(--text);
}

h1,h2,h3,h4,h5{
  font-family:'Archivo', sans-serif;
  font-weight:200;
  text-transform:uppercase;
  letter-spacing:-0.02em;
  line-height:0.98;
}

/* ============ PRELOADER ============ */
#loader{
  position:fixed; inset:0; z-index:999;
  background:var(--white);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  transition:opacity .7s ease, visibility .7s ease;
}
#loader.hidden{opacity:0; visibility:hidden; pointer-events:none;}
#loader .loader-logo{
  width:130px; opacity:0; transform:scale(0.94);
  animation:loaderIn 1s cubic-bezier(.22,.61,.36,1) forwards .1s;
}
#loader .loader-line{
  width:0; height:1px; background:var(--ink);
  margin-top:24px;
  animation:loaderLine 0.9s ease forwards .7s;
}
@keyframes loaderIn{ to{opacity:1; transform:scale(1);} }
@keyframes loaderLine{ to{width:140px;} }

/* ============ TOP BAR ============ */
header.topbar{
  position:fixed; top:0; left:0; right:0; z-index:200;
  mix-blend-mode:normal;
}
.topbar-inner{
  max-width:var(--maxw); margin:0 auto; padding:28px 40px;
  display:flex; align-items:center; justify-content:space-between;
}
@media (max-width:640px){ .topbar-inner{padding:20px 22px;} }
.topbar .logo img{height:24px; transition:filter .35s ease;}
.topbar.on-dark .logo img{filter:invert(1) brightness(2);}
.topbar-links{display:flex; align-items:center; gap:28px; margin-right:28px;}
.topbar-links a{
  font-family:'Archivo',sans-serif; font-size:11px; letter-spacing:0.18em; text-transform:uppercase;
  font-weight:700; color:var(--ink); transition:color .35s ease, opacity .25s ease;
}
.topbar-links a:hover{opacity:0.6;}
.topbar.on-dark .topbar-links a{color:var(--white);}
@media (max-width:640px){ .topbar-links{display:none;} }
.menu-btn{
  display:flex; align-items:center; gap:12px;
  background:none; border:0; cursor:pointer;
  font-family:'Archivo',sans-serif; font-size:11px; letter-spacing:0.2em; text-transform:uppercase;
  color:var(--ink); font-weight:700; transition:color .35s ease;
}
.topbar.on-dark .menu-btn{color:var(--white);}
.menu-btn .bars{display:flex; flex-direction:column; gap:5px; width:26px;}
.menu-btn .bars span{display:block; height:1px; background:currentColor; width:100%; transition:transform .3s;}
.lang-btn{
  border:1px solid currentColor; background:none; cursor:pointer;
  font-family:'Archivo',sans-serif; font-size:10px; letter-spacing:0.16em;
  color:var(--ink); padding:6px 12px; margin-right:22px; transition:color .35s ease;
}
.topbar.on-dark .lang-btn{color:var(--white);}

/* ============ OFF-CANVAS NAV ============ */
#navOverlay{
  position:fixed; inset:0; z-index:300;
  background:var(--navy);
  color:var(--white);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(-12px);
  transition:opacity .5s ease, visibility .5s ease, transform .5s ease;
}
#navOverlay.open{opacity:1; visibility:visible; transform:translateY(0);}
.nav-close{
  position:absolute; top:28px; right:40px;
  background:none; border:0; color:var(--white); cursor:pointer;
  font-size:13px; letter-spacing:0.2em; text-transform:uppercase; font-weight:700;
}
@media (max-width:640px){ .nav-close{top:20px; right:22px;} }
.nav-panels{position:relative; width:100%; max-width:640px; padding:0 32px;}
.nav-panel{
  display:none;
}
.nav-panel.active{display:block; animation:panelIn .4s ease;}
@keyframes panelIn{ from{opacity:0; transform:translateX(14px);} to{opacity:1; transform:translateX(0);} }
.nav-panel ul{display:flex; flex-direction:column;}
.nav-panel li{border-bottom:1px solid var(--line-dark);}
.nav-panel li:first-child{border-top:1px solid var(--line-dark);}
.nav-link{
  display:flex; align-items:center; justify-content:space-between;
  padding:22px 4px;
  font-size:clamp(22px, 4vw, 32px);
  text-transform:uppercase; letter-spacing:-0.01em; font-weight:300;
  cursor:pointer;
}
.nav-link .arrow{font-size:14px; color:rgba(255,255,255,0.5); font-weight:400;}
.nav-back{
  display:flex; align-items:center; gap:10px;
  font-size:11px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  color:rgba(255,255,255,0.6); margin-bottom:18px; cursor:pointer;
}

/* ============ HERO ============ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex; flex-direction:column; justify-content:flex-end; align-items:flex-start;
  padding:0 40px 100px;
  overflow:hidden;
}
@media (max-width:640px){ .hero{padding:0 22px 70px;} }
.hero video, .hero .hero-img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0;
}
.hero::after{
  content:'';
  position:absolute; inset:0; z-index:1;
  background:linear-gradient(180deg, rgba(26,26,26,0.15) 0%, rgba(26,26,26,0.05) 35%, rgba(26,26,26,0.75) 100%);
}
.hero-content{position:relative; z-index:2; max-width:900px;}
.hero .eyebrow{color:rgba(255,255,255,0.75); margin-bottom:20px;}
.hero h1{
  color:var(--white);
  font-size:clamp(40px, 7vw, 92px);
  font-weight:200;
}
.hero .sub{
  margin-top:22px; max-width:560px;
  font-size:15px; color:rgba(255,255,255,0.82); text-transform:none; font-weight:400; letter-spacing:0;
}
.page-hero{
  min-height:56vh;
}
.page-hero h1{font-size:clamp(34px,6vw,64px);}

/* ============ ROW DIRECTORY (home tiles) ============ */
.directory{border-top:1px solid var(--line);}
.dir-row{
  position:relative;
  border-bottom:1px solid var(--line);
  padding:36px 0;
  display:grid;
  grid-template-columns:140px 1fr auto;
  align-items:center;
  gap:24px;
  overflow:hidden;
  transition:padding .35s ease;
}
.dir-row .dir-bg{
  position:absolute; top:0; right:0; bottom:0; width:34%;
  background-size:cover; background-position:center;
  opacity:0; transform:scale(1.06);
  transition:opacity .5s ease, transform .6s ease;
  z-index:0;
}
.dir-row .dir-bg::before{
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(90deg, var(--white) 0%, rgba(255,255,255,0) 18%);
}
.dir-row:hover .dir-bg{opacity:1; transform:scale(1);}
.dir-row:hover{padding-left:16px;}
.dir-row > *{position:relative; z-index:1;}
.dir-cat{font-size:11px; letter-spacing:0.2em; text-transform:uppercase; color:var(--text); font-weight:700;}
.dir-title{
  font-size:clamp(20px, 2.6vw, 34px);
  font-weight:200; text-transform:uppercase; letter-spacing:-0.01em;
  max-width:58%;
  padding-right:24px;
}
.dir-title .sub-desc{
  display:block; font-family:'Archivo',sans-serif; text-transform:none; letter-spacing:0;
  font-size:14px; font-weight:400; color:var(--text); margin-top:8px; max-width:460px;
}
.dir-arrow{font-size:22px; font-weight:200; color:var(--text); transition:transform .3s; justify-self:end;}
.dir-row:hover .dir-arrow{transform:translateX(6px);}
@media (max-width:760px){
  .dir-row{grid-template-columns:1fr auto; row-gap:10px;}
  .dir-cat{grid-column:1/-1;}
  .dir-title{max-width:100%;}
  .dir-row .dir-bg{display:none;}
}

/* ============ SECTION SHELL ============ */
section{padding:110px 0;}
.section-head{max-width:760px; margin-bottom:56px;}
.section-head h2{font-size:clamp(28px,4vw,46px);}
.section-head p.desc{
  margin-top:20px; font-size:15px; color:var(--text); text-transform:none; letter-spacing:0; font-weight:400; max-width:600px;
}

/* ============ STATS ============ */
.stats-row{display:flex; gap:56px; flex-wrap:wrap; border-top:1px solid var(--line); padding-top:36px; margin-top:44px;}
.stat .num{font-size:40px; font-weight:200;}
.stat .label{margin-top:6px; font-size:11px; letter-spacing:0.16em; text-transform:uppercase; font-weight:700; color:var(--text);}

/* ============ SERVICES GRID (estudio page) ============ */
.services-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
.service{background:var(--white); padding:44px 40px;}
.service .idx{font-size:12px; color:var(--text); opacity:.5; font-weight:700; letter-spacing:0.1em;}
.service h3{font-size:22px; margin-top:18px; text-transform:uppercase; font-weight:300; letter-spacing:0;}
.service p{margin-top:12px; font-size:13.5px; color:var(--text); line-height:1.6; text-transform:none; font-weight:400;}
@media (max-width:760px){ .services-grid{grid-template-columns:1fr;} }

/* ============ METHODOLOGY (estudio page) ============ */
.method-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
.method-step{background:var(--white); padding:36px 32px;}
.method-step .idx{font-size:12px; color:var(--text); opacity:.5; font-weight:700; letter-spacing:0.1em;}
.method-step h3{font-size:19px; margin-top:16px; text-transform:uppercase; font-weight:300; letter-spacing:0;}
.method-step p{margin-top:10px; font-size:13px; color:var(--text); line-height:1.6; text-transform:none; font-weight:400;}
@media (max-width:760px){ .method-grid{grid-template-columns:1fr;} }

/* ============ FAQ ============ */
.faq-list{max-width:820px; border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex; align-items:center; justify-content:space-between; gap:24px; width:100%;
  padding:26px 4px; background:none; border:none; cursor:pointer; text-align:left;
  font-family:inherit; font-size:17px; font-weight:400; color:var(--ink); letter-spacing:0;
}
.faq-icon{font-size:20px; font-weight:300; color:var(--text); flex-shrink:0; transition:transform .3s;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .35s ease;}
.faq-a p{padding:0 4px 26px; font-size:14.5px; line-height:1.7; color:var(--text); max-width:680px;}
@media (max-width:760px){ .faq-q{font-size:15px; padding:20px 2px;} }

/* ============ PORTFOLIO GRID ============ */
.portfolio-filter{display:flex; gap:28px; margin-bottom:48px; border-bottom:1px solid var(--line); padding-bottom:20px;}
.portfolio-filter button{
  background:none; border:0; cursor:pointer;
  font-family:'Archivo',sans-serif; font-size:12px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  color:rgba(51,51,51,0.4); padding-bottom:4px; border-bottom:2px solid transparent;
}
.portfolio-filter button.active{color:var(--ink); border-color:var(--ink);}
.portfolio-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:2px; background:var(--line);}
@media (max-width:960px){ .portfolio-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:640px){ .portfolio-grid{grid-template-columns:1fr;} }
.project-card{background:var(--white); display:none;}
.project-card.show{display:block;}
a.project-card{cursor:pointer;}
.video-wrap{position:relative; aspect-ratio:4/5; background:var(--ink); overflow:hidden; cursor:pointer;}
.video-wrap .poster-img{width:100%; height:100%; object-fit:contain; object-position:center;}
.video-wrap video{width:100%; height:100%; object-fit:contain; display:block;}
.video-wrap::before{content:'';position:absolute; inset:0; background:linear-gradient(0deg, rgba(26,26,26,0.55) 0%, rgba(26,26,26,0.02) 40%); pointer-events:none;}
.play-icon{
  position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
  width:50px; height:50px; border-radius:50%; border:1px solid rgba(255,255,255,0.75);
  display:flex; align-items:center; justify-content:center; font-size:13px; color:var(--white); z-index:2;
  transition:transform .25s;
}
.project-card:hover .play-icon{transform:translate(-50%,-50%) scale(1.08);}
.project-caption{
  position:absolute; left:0; right:0; bottom:0; z-index:2; padding:20px;
  display:flex; align-items:baseline; justify-content:space-between; gap:10px;
}
.project-name{color:var(--white); font-size:18px; text-transform:uppercase; font-weight:300; letter-spacing:0;}
.project-tag{font-size:9.5px; letter-spacing:0.14em; text-transform:uppercase; color:rgba(255,255,255,0.85); font-weight:700; white-space:nowrap;}

/* ============ MODAL DE VIDEO (ventana flotante, resolución original) ============ */
.video-modal{
  position:fixed; inset:0; z-index:400;
  background:rgba(10,10,9,0.94);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden;
  transition:opacity .35s ease, visibility .35s ease;
  padding:60px 30px;
}
.video-modal.open{opacity:1; visibility:visible;}
.video-modal video{
  max-width:90vw; max-height:85vh; width:auto; height:auto;
  background:#000; box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.video-modal-close{
  position:absolute; top:26px; right:32px;
  background:none; border:1px solid rgba(255,255,255,0.4); color:#fff;
  font-size:11px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  cursor:pointer; padding:10px 16px; transition:border-color .25s;
}
.video-modal-close:hover{border-color:#fff;}
@media (max-width:640px){
  .video-modal-close{top:16px; right:16px;}
}

/* ============ ABOUT / ESTUDIO ============ */
.about-lead{font-size:clamp(22px,3vw,32px); font-weight:200; text-transform:none; letter-spacing:0; line-height:1.35; max-width:820px;}
.about-body{margin-top:40px; display:grid; grid-template-columns:1fr 1fr; gap:60px;}
.about-body p{font-size:15px; color:var(--text); text-transform:none; letter-spacing:0; font-weight:400;}
.about-tagline{font-size:14px !important; font-weight:700 !important; color:var(--ink) !important; margin-top:22px; letter-spacing:0.01em;}
@media (max-width:760px){ .about-body{grid-template-columns:1fr;} }
.full-photo{width:100%; aspect-ratio:16/9; overflow:hidden; margin:60px 0;}
.full-photo img{width:100%; height:100%; object-fit:cover;}

/* ============ CONTACT ============ */
.contact-grid{display:grid; grid-template-columns:1.1fr 0.9fr; gap:70px;}
@media (max-width:760px){ .contact-grid{grid-template-columns:1fr; gap:44px;} }
.contact-big{font-size:clamp(26px,4vw,44px); font-weight:200; text-transform:uppercase;}
.contact-btn{
  display:inline-block; margin-top:36px; padding:16px 38px;
  border:1px solid var(--ink);
  font-size:11px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  transition:background .25s, color .25s;
}
.contact-btn:hover{background:var(--ink); color:var(--white);}
.contact-detail{border-top:1px solid var(--line); padding-top:24px; margin-top:24px;}
.contact-detail .k{font-size:10px; letter-spacing:0.16em; text-transform:uppercase; font-weight:700; color:rgba(51,51,51,0.5);}
.contact-detail .v{font-size:16px; margin-top:6px; text-transform:none; letter-spacing:0;}

.contact-form{margin-top:44px;}
.contact-form .f-row{display:grid; grid-template-columns:1fr 1fr; gap:24px;}
@media (max-width:520px){ .contact-form .f-row{grid-template-columns:1fr;} }
.contact-form .f-group{margin-bottom:26px;}
.contact-form label{
  display:block; font-size:10px; letter-spacing:0.16em; text-transform:uppercase;
  font-weight:700; color:rgba(51,51,51,0.5); margin-bottom:10px;
}
.contact-form input, .contact-form textarea{
  width:100%; border:none; border-bottom:1px solid var(--line);
  background:transparent; padding:10px 2px; font-family:'Archivo', sans-serif;
  font-size:16px; color:var(--ink); transition:border-color .25s;
}
.contact-form input:focus, .contact-form textarea:focus{outline:none; border-color:var(--ink);}
.contact-form textarea{resize:vertical; min-height:110px;}
.contact-form .form-submit{
  display:inline-block; margin-top:10px; padding:16px 38px;
  border:1px solid var(--ink); background:var(--ink); color:var(--white);
  font-size:11px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  cursor:pointer; transition:background .25s, color .25s;
}
.contact-form .form-submit:hover{background:var(--white); color:var(--ink);}
.contact-form .form-submit:disabled{opacity:0.5; cursor:default;}
.contact-form .form-note{font-size:12px; color:rgba(51,51,51,0.55); margin-top:14px;}
.contact-form .form-success{display:none; font-size:15px; padding:20px 0;}
.contact-form .form-success.show{display:block;}
.contact-form .form-success strong{display:block; margin-bottom:6px; font-size:18px; font-weight:600;}
.contact-form.sent form{display:none;}

/* ============ FOOTER ============ */
footer{border-top:1px solid var(--line); padding:36px 0;}
footer .wrap{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;}
footer .foot-logo img{height:16px;}
footer p{font-size:10.5px; color:rgba(51,51,51,0.6); letter-spacing:0.04em; text-transform:uppercase;}
footer .foot-enfoque-logo{height:22px; width:auto; opacity:0.55; filter:grayscale(1);}

/* ============ SECCIÓN CLIENTES ============ */
.clients-grid{margin-top:36px; border:1px solid var(--line); padding:32px;}
.clients-grid img{width:100%; height:auto; display:block; filter:grayscale(1);}

/* ============ PÁGINA DE PROYECTO INDIVIDUAL ============ */
.breadcrumb{
  position:relative; z-index:2; margin-bottom:18px;
  font-size:11px; letter-spacing:0.16em; text-transform:uppercase; font-weight:700;
  color:rgba(255,255,255,0.7);
}
.breadcrumb a{color:rgba(255,255,255,0.7); transition:color .25s;}
.breadcrumb a:hover{color:#fff;}
.status-pill{
  display:inline-block; margin-top:18px; padding:7px 16px;
  border:1px solid rgba(255,255,255,0.5); color:#fff;
  font-size:10px; letter-spacing:0.16em; text-transform:uppercase; font-weight:700;
}
.project-actions{display:flex; gap:16px; margin-top:32px; flex-wrap:wrap;}
.btn-line{
  display:inline-flex; align-items:center; gap:10px;
  padding:15px 30px; border:1px solid var(--ink);
  font-size:11px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  cursor:pointer; background:none; transition:background .25s, color .25s;
}
.btn-line:hover{background:var(--ink); color:var(--white);}
.btn-line.on-hero{border-color:rgba(255,255,255,0.6); color:#fff;}
.btn-line.on-hero:hover{background:#fff; color:var(--ink);}

.hero-cta-row{display:flex; align-items:center; gap:26px; flex-wrap:wrap; margin-top:34px;}
.hero-link{
  color:#fff; font-size:11px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  border-bottom:1px solid rgba(255,255,255,0.4); padding-bottom:3px; transition:border-color .25s, opacity .25s;
}
.hero-link:hover{border-color:#fff;}
.hero-trust{
  display:flex; align-items:center; gap:14px; flex-wrap:wrap; margin-top:26px;
  font-size:12px; letter-spacing:0.02em; color:rgba(255,255,255,0.72);
}
.hero-trust strong{color:#fff; font-weight:700;}
.hero-trust .sep{color:rgba(255,255,255,0.35);}
@media (max-width:760px){
  .hero-trust{gap:10px; font-size:11px;}
}

.ficha-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); margin-top:44px;
}
.ficha-item{background:var(--white); padding:26px 24px;}
.ficha-item .k{font-size:10px; letter-spacing:0.14em; text-transform:uppercase; font-weight:700; color:rgba(51,51,51,0.5);}
.ficha-item .v{margin-top:8px; font-size:17px; font-weight:300; text-transform:uppercase;}
@media (max-width:760px){ .ficha-grid{grid-template-columns:repeat(2,1fr);} }

.amenities-list{margin-top:20px; display:flex; flex-wrap:wrap; gap:10px 28px;}
.amenities-list span{
  font-size:12.5px; color:var(--text); position:relative; padding-left:16px;
}
.amenities-list span::before{content:'—'; position:absolute; left:0; opacity:.5;}

.gallery-note{margin-top:10px; margin-bottom:28px;}

.gallery-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:2px; background:var(--line);
}
.gallery-grid a{display:block; aspect-ratio:4/3; overflow:hidden; background:var(--ink);}
.gallery-grid img{width:100%; height:100%; object-fit:cover; transition:transform .5s ease;}
.gallery-grid a:hover img{transform:scale(1.05);}
@media (max-width:760px){ .gallery-grid{grid-template-columns:repeat(2,1fr);} }

.image-modal{
  position:fixed; inset:0; z-index:410;
  background:rgba(10,10,9,0.96);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden;
  transition:opacity .35s ease, visibility .35s ease;
  padding:60px 30px;
}
.image-modal.open{opacity:1; visibility:visible;}
.image-modal img{
  max-width:88vw; max-height:82vh; width:auto; height:auto;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.image-modal-close{
  position:absolute; top:26px; right:32px;
  background:none; border:1px solid rgba(255,255,255,0.4); color:#fff;
  font-size:11px; letter-spacing:0.18em; text-transform:uppercase; font-weight:700;
  cursor:pointer; padding:10px 16px; transition:border-color .25s;
}
.image-modal-close:hover{border-color:#fff;}
.image-modal-nav{
  position:absolute; top:50%; transform:translateY(-50%);
  background:none; border:1px solid rgba(255,255,255,0.4); color:#fff;
  width:48px; height:48px; cursor:pointer; font-size:18px;
  display:flex; align-items:center; justify-content:center;
  transition:border-color .25s;
}
.image-modal-nav:hover{border-color:#fff;}
.image-modal-prev{left:24px;}
.image-modal-next{right:24px;}
.image-modal-count{
  position:absolute; bottom:24px; left:50%; transform:translateX(-50%);
  color:rgba(255,255,255,0.7); font-size:11px; letter-spacing:0.14em;
}
@media (max-width:640px){
  .image-modal-nav{width:38px; height:38px; font-size:15px;}
  .image-modal-prev{left:10px;} .image-modal-next{right:10px;}
  .image-modal-close{top:16px; right:16px;}
}

.related-projects{display:grid; grid-template-columns:repeat(3,1fr); gap:2px; background:var(--line); margin-top:44px;}
.related-projects a{background:var(--white); display:block; aspect-ratio:4/5; position:relative; overflow:hidden;}
.related-projects img{width:100%; height:100%; object-fit:cover; transition:transform .5s ease;}
.related-projects a:hover img{transform:scale(1.05);}
.related-projects .rp-name{
  position:absolute; left:0; right:0; bottom:0; padding:16px;
  color:#fff; font-size:14px; text-transform:uppercase; font-weight:300;
  background:linear-gradient(0deg, rgba(26,26,26,0.7) 0%, rgba(26,26,26,0) 60%);
}
@media (max-width:760px){ .related-projects{grid-template-columns:repeat(2,1fr);} }

/* ============ WHATSAPP FLOTANTE ============ */
.whatsapp-btn{
  position:fixed; right:26px; bottom:26px; z-index:250;
  width:56px; height:56px; border-radius:50%;
  background:#25D366;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 20px rgba(0,0,0,0.28);
  transition:transform .25s ease, box-shadow .25s ease;
}
.whatsapp-btn:hover{transform:scale(1.08); box-shadow:0 8px 26px rgba(0,0,0,0.36);}
.whatsapp-btn svg{width:28px; height:28px;}
@media (max-width:640px){
  .whatsapp-btn{right:18px; bottom:18px; width:50px; height:50px;}
  .whatsapp-btn svg{width:25px; height:25px;}
}