:root{--bg:#0b0b0b;--panel:#121212;--gold:#d79a18;--gold2:#f2b52a;--text:#f5f3ed;--muted:#aaa79e;--line:#2b2b2b;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Arial,Helvetica,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,textarea,select{font:inherit}.wrap{width:min(var(--max),calc(100% - 36px));margin:auto}.nav{position:sticky;top:0;z-index:30;background:rgba(11,11,11,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.navin{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:.2px}.mark{width:44px;height:44px;border:3px solid var(--gold);display:grid;place-items:center;color:var(--gold);font-weight:1000;font-size:20px;transform:skew(-6deg)}.brand small{display:block;color:var(--muted);font-weight:600;font-size:11px;letter-spacing:1.4px}.links{display:flex;gap:24px;align-items:center;font-size:14px}.cta{background:var(--gold);color:#111;padding:12px 18px;border-radius:2px;font-weight:900}.hero{min-height:78vh;display:grid;align-items:end;position:relative;background:linear-gradient(90deg,rgba(0,0,0,.90) 0%,rgba(0,0,0,.58) 45%,rgba(0,0,0,.18) 100%),url('img/hero-muro-blanco.jpg') center/cover}.hero:after{content:"";position:absolute;inset:auto 0 0;height:180px;background:linear-gradient(transparent,var(--bg))}.heroContent{position:relative;z-index:2;padding:110px 0 120px;max-width:820px}.eyebrow{color:var(--gold2);font-weight:800;letter-spacing:2px;text-transform:uppercase;font-size:13px}.hero h1,.pageHero h1{font-size:clamp(44px,7vw,92px);line-height:.95;margin:14px 0 22px;letter-spacing:-3px}.hero p,.pageHero p{font-size:clamp(18px,2vw,24px);color:#ddd8cb;max-width:760px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.btn{padding:14px 22px;border:1px solid #5b5b5b;font-weight:800}.btn.gold{background:var(--gold);border-color:var(--gold);color:#111}.section{padding:90px 0}.section.tight{padding:60px 0}.kicker{color:var(--gold);text-transform:uppercase;letter-spacing:2px;font-weight:800;font-size:12px}.title{font-size:clamp(32px,4vw,58px);line-height:1.05;margin:10px 0 24px;letter-spacing:-1.5px}.muted{color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--panel)}.stat{padding:30px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat b{display:block;font-size:28px;color:var(--gold)}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--panel);border:1px solid var(--line);overflow:hidden}.card img{height:280px;width:100%;object-fit:cover}.cardBody{padding:22px}.card h3{margin:0 0 8px;font-size:24px}.service{padding:28px;border:1px solid var(--line);background:linear-gradient(180deg,#131313,#0f0f0f)}.service span{color:var(--gold);font-weight:900}.service h3{font-size:24px;margin:8px 0}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}.split img{height:560px;width:100%;object-fit:cover}.quote{font-size:clamp(28px,4vw,52px);line-height:1.08;letter-spacing:-1px}.pageHero{padding:110px 0 70px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 80% 10%,#30220b 0,transparent 34%)}.gallery{columns:3 280px;column-gap:14px}.gallery img{width:100%;margin:0 0 14px;break-inside:avoid;border:1px solid #222}.projectHero{height:460px;position:relative;display:flex;align-items:end;background:center/cover}.projectHero:before{content:"";position:absolute;inset:0;background:linear-gradient(transparent,rgba(0,0,0,.92))}.projectHero .wrap{position:relative;padding-bottom:40px}.projectHero h2{font-size:46px;margin:0}.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}.spec{border-top:1px solid var(--line);padding-top:14px;color:var(--muted)}.contactGrid{display:grid;grid-template-columns:.8fr 1.2fr;gap:42px}.form{background:#111;border:1px solid var(--line);padding:28px}.form label{display:block;font-size:13px;color:#c9c5bb;margin:14px 0 6px}.form input,.form textarea,.form select{width:100%;background:#0b0b0b;color:white;border:1px solid #343434;padding:13px}.form textarea{min-height:130px}.footer{border-top:1px solid var(--line);padding:38px 0;color:var(--muted);font-size:14px}.footerin{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.badge{display:inline-block;border:1px solid #4a3714;color:var(--gold2);padding:7px 10px;font-size:12px;text-transform:uppercase;letter-spacing:1px}.mobile{display:none}.notice{border-left:3px solid var(--gold);padding:18px 20px;background:#15120c;color:#d8d2c6}.steps{counter-reset:step;display:grid;gap:12px}.step{padding:22px;border:1px solid var(--line);background:#111}.step:before{counter-increment:step;content:"0" counter(step);color:var(--gold);font-weight:900;margin-right:16px}.whatsapp{position:fixed;right:18px;bottom:18px;z-index:40;background:#fff;color:#111;border-radius:999px;padding:12px 16px;font-weight:900;box-shadow:0 8px 30px #0008}
@media(max-width:800px){.links{display:none}.mobile{display:block}.navin{height:68px}.hero{min-height:82vh;background-position:54% center}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.08) 0%,rgba(0,0,0,.22) 32%,rgba(0,0,0,.88) 100%);pointer-events:none}.heroContent{max-width:660px}.heroContent{padding:90px 0 90px}.hero h1,.pageHero h1{letter-spacing:-2px}.stats{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.grid3,.split,.contactGrid,.specs{grid-template-columns:1fr}.split img{height:400px}.section{padding:65px 0}.card img{height:240px}.gallery{columns:2 160px}.projectHero{height:360px}.projectHero h2{font-size:36px}}

/* Logotipo corporativo PDB */
.mark{width:58px;height:58px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#050505;border:0;padding:0;flex:0 0 58px}
.mark img{width:100%;height:100%;object-fit:contain;display:block}
@media(max-width:760px){.mark{width:52px;height:52px;flex-basis:52px}.brand>div:last-child{font-size:18px;line-height:1.05}.brand small{font-size:11px;letter-spacing:1.7px}}
.projectLink{color:inherit}.openProject{display:inline-block;margin-top:14px;color:var(--gold2);font-weight:800;letter-spacing:.4px}.reportHero{min-height:72vh;position:relative;display:flex;align-items:end;background:center/cover}.reportHero:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.22),rgba(0,0,0,.92))}.reportHeroIn{position:relative;padding:110px 0 70px;z-index:1}.reportHero h1{font-size:clamp(54px,8vw,100px);line-height:.9;letter-spacing:-3px;margin:14px 0 24px}.reportHero p{max-width:760px;font-size:20px;color:#ddd8cb}.backLink{display:inline-block;margin-bottom:44px;color:var(--gold2);font-weight:800}.reportGrid{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:end}.reportLead{font-size:19px}.processGallery{display:grid;grid-template-columns:1fr 1fr;gap:18px}.processGallery figure{margin:0;background:#111;border:1px solid var(--line)}.processGallery img{width:100%;height:520px;object-fit:cover}.processGallery figcaption{padding:20px;display:grid;gap:5px}.processGallery figcaption b{font-size:18px;color:var(--gold2)}.processGallery figcaption span{color:var(--muted)}.processGallery figure:nth-child(3n){grid-column:1/-1}.processGallery figure:nth-child(3n) img{height:600px}.reportCTA{border-top:1px solid var(--line);padding-top:55px;display:flex;justify-content:space-between;gap:30px;align-items:end}.reportCTA .title{max-width:760px;margin-bottom:0}@media(max-width:800px){.reportHero{min-height:68vh}.reportHeroIn{padding:90px 0 55px}.reportHero h1{letter-spacing:-2px}.reportGrid,.processGallery{grid-template-columns:1fr}.processGallery figure:nth-child(3n){grid-column:auto}.processGallery img,.processGallery figure:nth-child(3n) img{height:420px}.reportCTA{display:grid;align-items:start}.openProject{font-size:14px}}
.aiHero{background:radial-gradient(circle at 80% 10%,#4a3209 0,transparent 35%),linear-gradient(180deg,#101010,#0b0b0b)}.aiGrid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}.aiPanel{border:1px solid var(--line);background:var(--panel);padding:28px}.aiPanel h2{font-size:30px;margin:8px 0 22px}.uploadBox{min-height:300px;border:1px dashed #66522a;background:#0c0c0c;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:8px;padding:30px;cursor:pointer}.uploadBox input{display:none}.uploadIcon{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:var(--gold);color:#111;font-size:32px;line-height:1}.uploadBox small,.styleChoices small{display:block;color:var(--muted);margin-top:4px}.previewWrap{margin-top:16px;border:1px solid var(--line);overflow:hidden}.previewWrap img{width:100%;max-height:480px;object-fit:contain;background:#080808}.styleChoices{display:grid;gap:10px}.styleChoices label{display:block;cursor:pointer}.styleChoices input{position:absolute;opacity:0}.styleChoices span{display:block;border:1px solid #343434;padding:16px;background:#0d0d0d}.styleChoices input:checked+span{border-color:var(--gold);box-shadow:inset 3px 0 0 var(--gold)}.aiLabel{display:block;margin:20px 0 7px;color:#c9c5bb;font-size:13px}.aiNotes{width:100%;min-height:100px;background:#0b0b0b;color:#fff;border:1px solid #343434;padding:13px;resize:vertical}.aiGenerate{width:100%;margin-top:16px;border:0;cursor:pointer}.aiGenerate:disabled{opacity:.55;cursor:not-allowed}.aiStatus{font-size:13px;margin-bottom:0}.aiResult{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:center;border-top:1px solid var(--line);padding-top:45px}.resultMedia{min-height:420px;border:1px solid var(--line);background:linear-gradient(135deg,#151515,#090909);display:grid;place-items:center;color:#716e66;font-weight:800}.resultMedia img{width:100%;height:auto;max-height:680px;object-fit:contain}.aiError{color:#ffb4a9}.aiOk{color:#d7b45c}@media(max-width:800px){.aiGrid,.aiResult{grid-template-columns:1fr}.uploadBox{min-height:220px}.resultMedia{min-height:300px}.aiPanel{padding:20px}}

/* V11 · colaboradores, privacidad y pie legal */
.collaborators{background:linear-gradient(180deg,#0b0b0b,#0f0d08)}.collaboratorsLead{max-width:760px;font-size:18px}.collaboratorGrid{margin-top:28px}.collaboratorCard span{font-size:27px}.collaboratorNote{margin-top:18px;color:#817d73;font-size:13px}.footer strong{color:#ded9cf}.footerLinks{display:flex;gap:16px;flex-wrap:wrap;align-items:center}.footerLinks a{color:#c9c5bb;border-bottom:1px solid #4a3a18;padding-bottom:2px}.footerLinks a:hover{color:var(--gold2)}.legalHero h1{font-size:clamp(42px,6vw,76px)}.legalText{max-width:860px}.legalText h2{font-size:26px;margin:42px 0 10px}.legalText h2:first-child{margin-top:0}.legalText p{color:#c4c0b7;font-size:17px}.legalText a{color:var(--gold2);text-decoration:underline}.legalNotice{margin-top:36px;border-left:3px solid var(--gold);padding:18px 20px;background:#15120c;color:#d8d2c6}.privacyCheck{display:flex!important;gap:10px;align-items:flex-start;margin:18px 0!important;color:#c9c5bb!important;font-size:13px!important}.privacyCheck input{width:auto!important;margin-top:4px}.privacyCheck a{color:var(--gold2);text-decoration:underline}.aiPrivacy{margin-top:14px;padding:14px 16px;border-left:3px solid var(--gold);background:#15120c;color:#bdb8ad;font-size:12px;line-height:1.55}.aiPrivacy strong{color:#e8e2d6}.aiPrivacy a{color:var(--gold2);text-decoration:underline}@media(max-width:800px){.footerin{display:grid}.footerLinks{gap:12px 16px}.collaboratorGrid{grid-template-columns:1fr}}

/* V12 · proyectos, cubiertas, fachadas, piedra y Control de Obra */
.projectGrid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.projectCard{display:grid;grid-template-columns:1fr 1fr;background:var(--panel);border:1px solid var(--line);overflow:hidden;min-height:340px}.projectCard img{width:100%;height:100%;object-fit:cover}.projectCard>div{padding:28px;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end}.projectCard h2{font-size:32px;line-height:1.05;margin:14px 0 10px}.projectCard p{color:var(--muted);margin:0 0 18px}.projectCard b{color:var(--gold2)}.controlObra{background:radial-gradient(circle at 80% 10%,#3b2908 0,transparent 34%),#0d0d0d}.controlList{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:26px}.controlList span{border-top:1px solid var(--line);padding-top:12px;color:#d7d2c7}.controlPanel{background:#111;border:1px solid #3a301d;padding:28px;box-shadow:0 24px 80px #0008}.controlTop{display:flex;justify-content:space-between;gap:20px}.controlTop span{color:var(--gold2);font-weight:900}.progress{height:10px;background:#292929;margin:22px 0 26px;overflow:hidden}.progress i{display:block;width:68%;height:100%;background:var(--gold)}.controlRows p{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:14px 0;margin:0}.controlRows span{color:var(--muted);font-size:14px}@media(max-width:900px){.projectGrid{grid-template-columns:1fr}.projectCard{grid-template-columns:1fr;min-height:0}.projectCard img{height:280px}.controlList{grid-template-columns:1fr}}