*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{--p:#C0392B;--p2:#A93226;--black:#0D0D0D;--dark:#1C1C1C;--dark2:#252525;--gray:#999;--lgray:#444;--white:#fff;--red-glow:rgba(192,57,43,.18);--radius:6px;--trans:.3s ease;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',Arial,sans-serif;color:var(--white);background:var(--black);line-height:1.6;}
img{display:block;max-width:100%;}a{text-decoration:none;color:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 40px;}

/* HEADER */
#header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background var(--trans),border-bottom var(--trans);}
#header.scrolled{background:rgba(13,13,13,.95);border-bottom:1px solid rgba(192,57,43,.25);backdrop-filter:blur(10px);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px;}
.logo-link img{height:36px;}
.nav{display:flex;align-items:center;gap:32px;}
.nav a:not(.btn-nav){color:rgba(255,255,255,.6);font-size:.85rem;font-weight:500;letter-spacing:.3px;}
.nav a:not(.btn-nav):hover{color:var(--white);}
.btn-nav{background:var(--p);color:var(--white);padding:10px 24px;border-radius:var(--radius);font-weight:700;font-size:.83rem;letter-spacing:.3px;}
.btn-nav:hover{background:var(--p2);}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px;}
.hamburger span{display:block;width:24px;height:2px;background:var(--white);}

/* HERO — black + red diagonal band + image right */
.hero{position:relative;min-height:100vh;display:grid;grid-template-columns:1fr 1fr;overflow:hidden;background:var(--black);}
.hero::before{content:'';position:absolute;top:-10%;left:35%;width:120%;height:120%;background:var(--p);clip-path:polygon(15% 0,100% 0,85% 100%,0% 100%);opacity:.06;z-index:0;}
.hero-left{position:relative;z-index:1;display:flex;flex-direction:column;justify-content:center;padding:130px 56px 80px;}
.hero-eyebrow{display:flex;align-items:center;gap:12px;margin-bottom:28px;}
.hero-line-red{width:36px;height:2px;background:var(--p);}
.hero-eyebrow span{font-size:.7rem;font-weight:700;letter-spacing:4px;text-transform:uppercase;color:var(--p);}
.hero-h1{font-size:clamp(2.6rem,4.5vw,4.2rem);font-weight:900;color:var(--white);line-height:1.0;letter-spacing:-1.5px;margin-bottom:28px;}
.hero-h1 .red{color:var(--p);}
.hero-sub{font-size:.97rem;color:rgba(255,255,255,.45);line-height:1.8;margin-bottom:44px;max-width:420px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;}
.btn-red{display:inline-block;background:var(--p);color:var(--white);padding:14px 38px;border-radius:var(--radius);font-weight:800;font-size:.9rem;transition:background var(--trans),transform var(--trans);}
.btn-red:hover{background:var(--p2);transform:translateY(-2px);}
.btn-ghost{display:inline-block;border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.7);padding:13px 32px;border-radius:var(--radius);font-weight:600;font-size:.88rem;transition:border-color var(--trans);}
.btn-ghost:hover{border-color:rgba(255,255,255,.5);color:var(--white);}
.hero-right{position:relative;z-index:1;overflow:hidden;}
.hero-right img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;mix-blend-mode:luminosity;}
.hero-right::after{content:'';position:absolute;inset:0;background:linear-gradient(to right,var(--black) 0%,transparent 30%);}

/* BENTO SERVICES */
.servicios{padding:100px 0;background:var(--black);}
.sec-label{font-size:.68rem;font-weight:700;letter-spacing:5px;text-transform:uppercase;color:var(--p);}
.sec-h2{font-size:clamp(1.6rem,2.8vw,2.5rem);font-weight:900;letter-spacing:-1px;margin-top:8px;}
.svc-intro{margin-bottom:56px;}
.svc-intro p{color:var(--gray);margin-top:12px;font-size:.93rem;max-width:480px;}
.bento{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:320px 280px;gap:3px;}
.bento-item{position:relative;overflow:hidden;background:var(--dark);}
.bento-item.big{grid-column:1/3;grid-row:1/2;}
.bento-item.tall{grid-column:3/4;grid-row:1/3;}
.bento-item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.35;transition:opacity .5s,transform .7s;}
.bento-item:hover img{opacity:.5;transform:scale(1.05);}
.bento-item::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(13,13,13,.9) 0%,rgba(13,13,13,.3) 60%,transparent 100%);z-index:1;}
.bento-body{position:absolute;bottom:0;left:0;right:0;z-index:2;padding:28px 32px;}
.bento-num{font-size:.65rem;font-weight:800;letter-spacing:3px;text-transform:uppercase;color:var(--p);margin-bottom:6px;}
.bento-body h3{font-size:1.1rem;font-weight:800;color:var(--white);margin-bottom:8px;line-height:1.25;}
.bento-body p{font-size:.84rem;color:rgba(255,255,255,.5);line-height:1.6;}
.bento-item{opacity:0;transform:scale(.97);}
.bento-item.visible{opacity:1;transform:none;transition:opacity .5s,transform .5s;}
.bento-item.big .bento-body h3{font-size:1.4rem;}

/* DIFERENCIADORES 3-col horizontal */
.difs{padding:80px 0;background:var(--dark);}
.difs .sec-label{color:rgba(192,57,43,.9);}
.difs-intro{text-align:center;margin-bottom:52px;}
.difs-intro p{color:var(--gray);margin-top:12px;font-size:.93rem;}
.dif-row{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;}
.dif-card{padding:44px 36px;background:var(--dark2);border-top:2px solid transparent;transition:border-color var(--trans),background var(--trans);opacity:0;transform:translateY(14px);}
.dif-card.visible{opacity:1;transform:none;transition:opacity .5s,transform .5s;}
.dif-card:hover{border-top-color:var(--p);background:rgba(192,57,43,.04);}
.dif-icon{font-size:2rem;color:var(--p);margin-bottom:18px;}
.dif-card h4{font-size:1rem;font-weight:800;color:var(--white);margin-bottom:10px;}
.dif-card p{font-size:.86rem;color:var(--gray);line-height:1.7;}

/* GALERÍA 5-col hover rojo */
.galeria{display:grid;grid-template-columns:repeat(5,1fr);height:220px;gap:3px;}
.gal-img{overflow:hidden;position:relative;}
.gal-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s;filter:grayscale(.3);}
.gal-img::after{content:'';position:absolute;inset:0;background:var(--p);opacity:0;transition:opacity var(--trans);}
.gal-img:hover img{transform:scale(1.08);}
.gal-img:hover::after{opacity:.35;}

/* PROCESO horizontal rojo */
.proceso{padding:100px 0;background:var(--black);}
.proceso-intro{text-align:center;margin-bottom:64px;}
.proceso-intro p{color:var(--gray);margin-top:12px;font-size:.93rem;}
.proc-track{position:relative;display:grid;grid-template-columns:repeat(5,1fr);}
.proc-track::before{content:'';position:absolute;top:20px;left:10%;right:10%;height:2px;background:linear-gradient(to right,var(--p),rgba(192,57,43,.2));z-index:0;}
.proc-step{position:relative;z-index:1;text-align:center;padding:0 16px;opacity:0;transform:translateY(12px);}
.proc-step.visible{opacity:1;transform:none;transition:opacity .5s,transform .5s;}
.proc-bullet{width:40px;height:40px;border-radius:50%;background:var(--p);display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:.72rem;font-weight:900;color:var(--white);position:relative;}
.proc-bullet::after{content:'';position:absolute;inset:-5px;border-radius:50%;border:1px solid rgba(192,57,43,.3);}
.proc-step h4{font-size:.9rem;font-weight:800;color:var(--white);margin-bottom:8px;}
.proc-step p{font-size:.8rem;color:var(--gray);line-height:1.6;}

/* CLIENTES — marquee placeholder */
.clientes{padding:60px 0;background:var(--dark);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05);}
.clientes-inner{display:flex;align-items:center;gap:48px;flex-wrap:wrap;justify-content:center;}
.cli-label{font-size:.65rem;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--lgray);white-space:nowrap;}
.cli-tags{display:flex;gap:32px;flex-wrap:wrap;align-items:center;}
.cli-tag{font-size:.9rem;font-weight:700;color:rgba(255,255,255,.2);letter-spacing:.5px;text-transform:uppercase;}

/* CONTACTO */
.contacto{padding:100px 0;background:var(--dark);}
.contacto-inner{display:grid;grid-template-columns:1fr 1.4fr;gap:72px;align-items:start;}
.c-left .sec-h2{color:var(--white);}
.c-left p{color:var(--gray);font-size:.93rem;line-height:1.75;margin:16px 0 28px;}
.c-info{list-style:none;display:flex;flex-direction:column;gap:14px;}
.c-info li{display:flex;align-items:center;gap:14px;font-size:.9rem;color:var(--gray);}
.c-info li i{color:var(--p);width:16px;}
.c-img{width:100%;height:190px;object-fit:cover;border-radius:4px;margin-top:28px;filter:grayscale(.2);}
.c-form{background:var(--dark2);border:1px solid rgba(255,255,255,.07);border-radius:10px;padding:44px;}
.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.form-group label{font-size:.78rem;font-weight:700;color:rgba(255,255,255,.4);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-group input,.form-group select,.form-group textarea{padding:12px 16px;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);font-size:.9rem;font-family:inherit;background:rgba(255,255,255,.04);color:var(--white);transition:border-color var(--trans);}
.form-group input::placeholder,.form-group textarea::placeholder{color:rgba(255,255,255,.2);}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--p);}
.form-group select{color:rgba(255,255,255,.4);}
.form-group select option{background:var(--dark2);}
.form-group textarea{resize:vertical;}
.btn-submit{width:100%;padding:15px;background:var(--p);color:var(--white);border:none;border-radius:var(--radius);font-weight:800;font-size:1rem;cursor:pointer;transition:background var(--trans);}
.btn-submit:hover{background:var(--p2);}
.form-success{display:none;margin-top:16px;padding:14px;background:rgba(192,57,43,.12);border-radius:4px;color:var(--p);font-weight:600;font-size:.9rem;text-align:center;}
.c-left,.c-form{opacity:0;transform:translateY(14px);}
.c-left.visible,.c-form.visible{opacity:1;transform:none;transition:opacity .6s,transform .6s;}

/* FOOTER */
.footer{background:var(--black);padding:60px 0 24px;border-top:1px solid rgba(255,255,255,.05);}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:60px;margin-bottom:40px;}
.footer-brand img{height:34px;margin-bottom:16px;}
.footer-brand p{font-size:.84rem;color:rgba(255,255,255,.3);line-height:1.75;}
.footer-col h5{font-size:.68rem;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--p);margin-bottom:14px;}
.footer-col{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:.84rem;color:rgba(255,255,255,.35);transition:color var(--trans);}
.footer-col a:hover{color:var(--white);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding-top:24px;text-align:center;}
.footer-bottom p{font-size:.78rem;color:rgba(255,255,255,.2);}

@media(max-width:768px){
.hero{grid-template-columns:1fr;min-height:auto;}.hero-right{min-height:260px;}
.hero-left{padding:110px 24px 60px;}
.bento{grid-template-columns:1fr;grid-template-rows:auto;}.bento-item.big,.bento-item.tall{grid-column:auto;grid-row:auto;}
.bento-item{min-height:220px;}
.dif-row{grid-template-columns:1fr;}
.galeria{grid-template-columns:repeat(3,1fr);height:auto;}
.proc-track{grid-template-columns:1fr;}.proc-track::before{display:none;}
.contacto-inner{grid-template-columns:1fr;}
.footer-inner{grid-template-columns:1fr;}
.form-row{grid-template-columns:1fr;}
.nav{display:none;position:fixed;inset:0;background:var(--black);flex-direction:column;justify-content:center;align-items:center;gap:24px;z-index:99;}.nav.open{display:flex;}.nav a{font-size:1.1rem;}
.hamburger{display:flex;z-index:100;}
}