:root{
  --navy:#071d2c;
  --navy2:#0b2b40;
  --ink:#0b2030;
  --muted:#586976;
  --gold:#e4a42d;
  --gold2:#f0ba4b;
  --white:#fff;
  --soft:#f5f6f7;
  --line:#dce3e7;
  --green:#25b85b;
  --shadow:0 16px 42px rgba(4,29,45,.12);
  --max:1500px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Arial,sans-serif;background:white;line-height:1.55}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
button,input,textarea,select{font:inherit}
.container{width:min(var(--max),calc(100% - 74px));margin:auto}

/* Encabezado del diseño aprobado */
.site-header{position:sticky;top:0;z-index:1000;background:#fff;border-bottom:1px solid #d7dfe3;box-shadow:0 2px 12px rgba(4,29,45,.04)}
.header-inner{
  width:min(1540px,calc(100% - 70px));
  min-height:126px;
  margin:auto;
  display:grid;
  grid-template-columns:330px 1fr;
  align-items:center;
  gap:35px;
}
.brand{height:126px;display:flex;align-items:center}
.brand img{width:270px;max-height:112px;object-fit:contain}
.main-nav{display:flex;justify-content:center;align-items:center;gap:54px;height:126px}
.main-nav a{position:relative;height:126px;display:flex;align-items:center;color:#0b2030;font-size:16px;font-weight:600;line-height:1.2;letter-spacing:0}
.main-nav a::after{content:"";position:absolute;bottom:27px;left:0;right:0;height:2px;background:var(--gold);transform:scaleX(0);transition:.25s}
.main-nav a:hover::after,
body[data-page="inicio"] [data-nav="inicio"]::after,
body[data-page="empresa"] [data-nav="empresa"]::after,
body[data-page="capacidades"] [data-nav="capacidades"]::after,
body[data-page="experiencia"] [data-nav="experiencia"]::after,
body[data-page="contacto"] [data-nav="contacto"]::after{transform:scaleX(1)}
.menu-toggle{display:none}

/* Portada exacta */
.hero{
  position:relative;
  min-height:425px;
  color:#fff;
  overflow:hidden;
  background:
    linear-gradient(90deg,rgba(5,22,34,.86) 0%,rgba(5,22,34,.78) 35%,rgba(5,22,34,.42) 56%,rgba(5,22,34,.05) 78%),
    url("../assets/img/portada-equipo-real-pipeline-v2.jpg") center center/cover no-repeat;
}
.hero-inner{width:min(var(--max),calc(100% - 74px));min-height:425px;margin:auto;display:flex;align-items:center}
.hero-copy{max-width:710px;padding:42px 0}
.hero h1{max-width:720px;margin:0;color:#fff;font-size:clamp(38px,3.75vw,53px);font-weight:800;line-height:1.03;letter-spacing:-.04em;text-transform:uppercase}
.hero h1 .gold-dot{color:var(--gold)}
.gold-rule{width:64px;height:3px;background:var(--gold);margin:23px 0 20px}
.hero p{max-width:610px;margin:0;color:#f2f5f6;font-size:18px;line-height:1.45}
.hero-actions{display:flex;gap:18px;flex-wrap:wrap;margin-top:25px}
.btn{min-height:50px;padding:0 26px;display:inline-flex;align-items:center;justify-content:center;gap:19px;border-radius:5px;border:1px solid var(--gold);font-size:14px;font-weight:750;line-height:1.2;transition:.22s}
.btn-primary{color:#102535;background:linear-gradient(135deg,var(--gold2),var(--gold));box-shadow:0 9px 22px rgba(228,164,45,.22)}
.btn-outline{color:#fff;background:rgba(7,29,44,.35)}
.btn:hover{transform:translateY(-2px)}
.btn .arrow{font-size:25px;line-height:1}

/* Franja azul */
.proof-strip{background:linear-gradient(90deg,#071d2c,#0b2b40);color:white}
.proof-grid{width:min(1340px,calc(100% - 70px));min-height:92px;margin:auto;display:grid;grid-template-columns:1.15fr repeat(3,1fr)}
.proof-item{position:relative;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:19px 29px 17px;border-right:1px solid rgba(255,255,255,.24)}
.proof-item::before{content:"";position:absolute;top:0;left:29px;width:34px;height:3px;background:var(--gold)}
.proof-item:last-child{border-right:0}
.proof-number{margin-bottom:8px;color:var(--gold);font-size:12px;font-weight:850;line-height:1;letter-spacing:.16em;text-transform:uppercase}
.proof-copy strong{display:block;color:#fff;font-size:16px;line-height:1.25}
.proof-copy span{display:block;margin-top:3px;color:#eef3f5;font-size:13px;line-height:1.35}

/* Primera fila de capacidades */
.home-capabilities{padding:23px 0 70px;background:#fff}
.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.capability-card{overflow:hidden;background:white;border:1px solid var(--line);border-radius:5px;box-shadow:0 10px 26px rgba(6,29,44,.07);transition:.25s}
.capability-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.capability-card img{width:100%;height:160px;object-fit:cover}
.capability-content{position:relative;padding:18px 21px 23px;border-top:3px solid var(--gold)}
.capability-number{display:flex;align-items:center;gap:10px;margin-bottom:8px;color:#b7770a;font-size:12px;font-weight:850;line-height:1;letter-spacing:.18em}
.capability-number::after{content:"";width:30px;height:1px;background:var(--gold)}
.capability-content h3{margin:0 0 6px;color:var(--navy);font-size:20px}
.capability-content p{margin:0;min-height:52px;color:#425766;font-size:14px}
.card-arrow{position:absolute;right:18px;bottom:18px;color:var(--gold);font-size:25px}

/* Secciones inferiores */
.section{padding:88px 0}
.section-soft{background:var(--soft)}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:42px;margin-bottom:36px}
.eyebrow{display:block;margin-bottom:11px;color:#bc7c0e;font-size:13px;font-weight:850;letter-spacing:.15em;text-transform:uppercase}
.section-title h2,.page-hero h1{margin:0;color:var(--navy);font-size:clamp(38px,3.7vw,56px);font-weight:800;line-height:1.07;letter-spacing:-.03em}
.section-title p{max-width:650px;margin:0;color:var(--muted);font-size:17px}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:68px;align-items:center}
.intro-photo{position:relative;overflow:hidden;min-height:500px;border-radius:7px;box-shadow:var(--shadow)}
.intro-photo img{width:100%;height:500px;object-fit:cover}
.intro-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(7,29,44,.78))}
.intro-badge{position:absolute;z-index:2;right:28px;bottom:25px;padding:15px 19px;border-left:3px solid var(--gold);color:white}
.intro-badge strong{display:block;font-size:29px}
.intro-copy h2{margin:0 0 22px;color:var(--navy);font-size:clamp(38px,3.7vw,56px);font-weight:800;line-height:1.07;letter-spacing:-.03em}
.intro-copy p{color:#455a67;font-size:18px}
.tag-list,.company-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.tag,.company-chip{padding:9px 13px;border:1px solid var(--line);border-radius:999px;background:white;color:#294354;font-weight:700;font-size:14px}

/* Método */
.method-grid{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid #cad4da;border-bottom:1px solid #cad4da}
.method-item{padding:31px 24px 34px;border-right:1px solid #cad4da}
.method-item:last-child{border-right:0}
.method-item .num{display:block;margin-bottom:27px;color:#bd7d10;font-weight:900}
.method-item h3{margin:0 0 8px;color:var(--navy);font-size:18px}
.method-item p{margin:0;color:var(--muted);font-size:14px}

/* Experiencia */
.experience-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:30px}
.experience-panel{padding:34px;border:1px solid var(--line);border-radius:7px;background:white;box-shadow:0 9px 26px rgba(6,29,44,.06)}
.experience-panel h3{margin:0 0 10px;color:var(--navy);font-size:25px}
.client{margin-top:14px;padding:17px 18px;border-left:4px solid var(--gold);background:var(--soft);font-weight:800;color:var(--navy)}
.notice{margin-top:23px;padding:15px 18px;border-left:3px solid var(--gold);background:#fff8e9;color:#5a4a28;font-size:13px}

/* CTA */
.cta{padding:76px 0;color:white;background:linear-gradient(90deg,rgba(7,29,44,.97),rgba(7,29,44,.68)),url("../assets/img/registro-mina-panoramica-20220415.jpg") center/cover}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta h2{max-width:790px;margin:0;font-size:clamp(36px,3.6vw,54px);font-weight:800;line-height:1.06;letter-spacing:-.025em}
.cta p{max-width:700px;color:#dce7eb}

/* Páginas interiores */
.page-hero{min-height:370px;display:flex;align-items:end;color:white;background:linear-gradient(90deg,rgba(7,29,44,.97),rgba(7,29,44,.52)),url("../assets/img/hero-kta.jpg") center/cover}
.page-hero-inner{padding:75px 0 58px}
.page-hero h1{color:white}
.page-hero p{max-width:760px;color:#dce6ea;font-size:18px}
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.detail-card{overflow:hidden;background:white;border:1px solid var(--line);border-radius:7px;box-shadow:0 10px 28px rgba(7,29,44,.07)}
.detail-card img{width:100%;height:270px;object-fit:cover}
.detail-body{padding:27px}
.detail-body h2{margin:0 0 10px;color:var(--navy)}
.detail-body ul{padding-left:21px;color:#425765}
.detail-body li{margin-bottom:7px}

/* Vista previa independiente de capacidades */
.preview-page-hero{min-height:430px;background:linear-gradient(90deg,rgba(7,29,44,.97),rgba(7,29,44,.58)),url("../assets/img/proceso-kta-sideboom-completo-v15.png") center 44%/cover}
.preview-capabilities-intro{padding:76px 0 54px;background:#fff}
.preview-index-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.preview-index-card{position:relative;min-height:148px;padding:24px 22px;border:1px solid var(--line);border-top:3px solid var(--gold);background:#fff;box-shadow:0 8px 22px rgba(7,29,44,.05);transition:.22s}
.preview-index-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.preview-index-card span{display:block;margin-bottom:19px;color:#b7770a;font-size:12px;font-weight:900;letter-spacing:.18em}
.preview-index-card strong{display:block;color:var(--navy);font-size:18px;line-height:1.22}
.preview-index-card small{display:block;margin-top:8px;color:var(--muted);font-size:13px}
.preview-index-card::after{content:"→";position:absolute;right:18px;bottom:15px;color:var(--gold);font-size:21px}
.preview-capabilities-list{padding:14px 0 92px;background:var(--soft)}
.preview-capability{display:grid;grid-template-columns:.82fr 1.18fr;overflow:hidden;margin-top:34px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 14px 34px rgba(7,29,44,.08);scroll-margin-top:145px}
.preview-capability:nth-child(even){grid-template-columns:1.18fr .82fr}
.preview-capability:nth-child(even) .preview-capability-media{order:2}
.preview-capability-media{position:relative;min-height:100%;background:var(--navy)}
.preview-capability-media img{width:100%;height:100%;min-height:590px;object-fit:cover}
.preview-capability-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,29,44,.72))}
.preview-capability-media span{position:absolute;z-index:2;left:28px;bottom:25px;color:#fff;font-size:54px;font-weight:850;line-height:1;letter-spacing:-.04em}
.preview-capability-body{padding:44px 43px 40px}
.preview-capability-kicker{display:block;margin-bottom:10px;color:#b7770a;font-size:12px;font-weight:850;letter-spacing:.15em;text-transform:uppercase}
.preview-capability-body h2{max-width:760px;margin:0;color:var(--navy);font-size:clamp(31px,3vw,45px);line-height:1.05;letter-spacing:-.03em}
.preview-capability-summary{max-width:760px;margin:17px 0 28px;color:#455a67;font-size:17px;line-height:1.6}
.preview-service-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px}
.preview-service-group{padding:20px;border-top:3px solid var(--gold);background:#f6f8f9}
.preview-service-group h3{margin:0 0 12px;color:var(--navy);font-size:16px}
.preview-service-group ul{margin:0;padding:0;list-style:none}
.preview-service-group li{position:relative;margin-top:8px;padding-left:15px;color:#455a67;font-size:13px;line-height:1.45}
.preview-service-group li::before{content:"";position:absolute;left:0;top:.65em;width:5px;height:5px;border-radius:50%;background:var(--gold)}
.preview-results{margin-top:20px;padding:20px 21px;border-left:3px solid var(--gold);background:#fff8e9}
.preview-results h3{margin:0 0 10px;color:var(--navy);font-size:15px}
.preview-results ul{display:grid;grid-template-columns:repeat(2,1fr);gap:7px 24px;margin:0;padding-left:18px;color:#5d5239;font-size:13px}
.preview-service-model{padding:82px 0;color:#fff;background:linear-gradient(105deg,#061824,#0b2b40)}
.preview-service-model-heading{display:grid;grid-template-columns:.82fr 1.18fr;gap:16px 70px;align-items:end;margin-bottom:34px}
.preview-service-model-heading .eyebrow{grid-column:1/-1;color:var(--gold2)}
.preview-service-model-heading h2{margin:0;font-size:clamp(34px,3.5vw,51px);line-height:1.06;letter-spacing:-.03em}
.preview-service-model-heading p{margin:0;color:#cbd8de;font-size:17px}
.preview-service-model-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.24);border-bottom:1px solid rgba(255,255,255,.24)}
.preview-service-model-grid article{position:relative;padding:28px 25px 30px;border-right:1px solid rgba(255,255,255,.24)}
.preview-service-model-grid article::before{content:"";position:absolute;top:-1px;left:25px;width:34px;height:3px;background:var(--gold)}
.preview-service-model-grid article:last-child{border-right:0}
.preview-service-model-grid h3{margin:0 0 8px;font-size:17px}
.preview-service-model-grid p{margin:0;color:#cbd8de;font-size:13px;line-height:1.5}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}
.principle{padding:25px;border-top:3px solid var(--gold);background:white;box-shadow:0 8px 22px rgba(7,29,44,.06)}
.principle h3{margin:0 0 7px;color:var(--navy)}
.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px}
.contact-card{padding:33px;border:1px solid var(--line);border-radius:7px;background:white;box-shadow:var(--shadow)}
.contact-card h2{margin-top:0;color:var(--navy)}
.contact-row{padding:17px 0;border-bottom:1px solid var(--line)}
.contact-row:last-child{border-bottom:0}
.contact-row strong{display:block;color:var(--navy)}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:17px}
.contact-form label{color:var(--navy);font-weight:700}
.contact-form .full{grid-column:1/-1}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;margin-top:7px;padding:13px 14px;border:1px solid #c9d4da;border-radius:5px}
.contact-form textarea{min-height:145px;resize:vertical}
.form-note{grid-column:1/-1;color:var(--muted);font-size:12px}

/* Pie */
.site-footer{padding:54px 0 0;background:#061824;color:#d8e2e7}
.footer-inner{width:min(var(--max),calc(100% - 74px));margin:auto;display:grid;grid-template-columns:1.45fr .65fr .85fr;gap:55px;padding-bottom:42px}
.footer-brand img{width:230px;padding:8px;background:white;border-radius:4px}
.footer-brand p{max-width:430px;color:#aebdc5}
.footer-column h3{margin-top:0;color:white}
.footer-column a{display:block;margin:8px 0;color:#c0ccd2}
.footer-column a:hover{color:var(--gold)}
.footer-legal{width:min(var(--max),calc(100% - 74px));margin:auto;padding:18px 0 24px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:35px;color:#91a4ad;font-size:12px}
.floating-wa{position:fixed;right:20px;bottom:20px;z-index:900;padding:13px 18px;border-radius:26px;background:#23b95b;color:white;font-weight:800;box-shadow:0 10px 25px rgba(0,0,0,.22)}
.reveal{opacity:0;transform:translateY(20px);transition:.65s}
.reveal.visible{opacity:1;transform:none}

/* Tablet */
@media(max-width:1160px){
  .header-inner{width:calc(100% - 38px);grid-template-columns:250px 1fr;gap:18px}
  .brand img{width:225px}
  .main-nav{gap:26px}
  .capability-grid{grid-template-columns:repeat(2,1fr)}
  .proof-grid{grid-template-columns:repeat(2,1fr)}
  .proof-item:nth-child(2){border-right:0}
  .proof-item:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.22)}
  .method-grid{grid-template-columns:repeat(3,1fr)}
  .method-item:nth-child(3){border-right:0}
  .method-item:nth-child(-n+3){border-bottom:1px solid #cad4da}
  .preview-index-grid{grid-template-columns:repeat(2,1fr)}
  .preview-capability,.preview-capability:nth-child(even){grid-template-columns:1fr}
  .preview-capability:nth-child(even) .preview-capability-media{order:0}
  .preview-capability-media img{min-height:360px;height:360px}
  .preview-service-model-grid{grid-template-columns:repeat(2,1fr)}
  .preview-service-model-grid article:nth-child(2){border-right:0}
  .preview-service-model-grid article:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.24)}
}

/* Teléfono */
@media(max-width:820px){
  .container,.hero-inner,.footer-inner,.footer-legal,.proof-grid{width:calc(100% - 34px)}
  .header-inner{min-height:88px;width:calc(100% - 28px);grid-template-columns:1fr auto}
  .brand{height:88px}
  .brand img{width:180px;max-height:78px}
  .menu-toggle{display:flex;flex-direction:column;align-items:center;gap:4px;border:0;background:none;color:var(--navy);padding:8px}
  .menu-toggle span{display:block;width:27px;height:2px;background:var(--navy)}
  .menu-toggle b{font-size:10px}
  .main-nav{position:absolute;left:0;right:0;top:88px;display:none;height:auto;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 20px;background:white;border-bottom:1px solid var(--line);box-shadow:0 15px 25px rgba(7,29,44,.12)}
  .main-nav.open{display:flex}
  .main-nav a{height:49px;border-bottom:1px solid #edf1f3}
  .main-nav a::after{display:none}
  .hero{min-height:0;background:linear-gradient(180deg,rgba(5,22,34,.04) 0,rgba(5,22,34,.1) calc(33.333vw - 35px),rgba(5,22,34,.98) calc(33.333vw + 30px),var(--navy) calc(33.333vw + 31px)),url("../assets/img/portada-equipo-real-pipeline-v2.jpg") center top/100% auto no-repeat,var(--navy)}
  .hero-inner{min-height:0;align-items:flex-start}
  .hero-copy{padding:clamp(145px,36vw,300px) 0 45px}
  .hero h1{font-size:32px}
  .hero p{font-size:16px}
  .hero-actions{display:grid}
  .btn{width:100%}
  .proof-grid{grid-template-columns:1fr}
  .proof-item{min-height:82px;border-right:0;border-bottom:1px solid rgba(255,255,255,.22)!important;padding:19px 8px 16px}
  .proof-item::before{left:8px}
  .proof-number{font-size:11px}
  .proof-item:last-child{border-bottom:0!important}
  .home-capabilities{padding-top:20px}
  .section{padding:65px 0}
  .section-title{display:block}
  .section-title p{margin-top:15px}
  .capability-grid,.intro-grid,.experience-grid,.detail-grid,.principles,.contact-layout{grid-template-columns:1fr}
  .capability-card img{height:215px}
  .intro-grid{gap:35px}
  .intro-photo,.intro-photo img{min-height:370px;height:370px}
  .method-grid{grid-template-columns:1fr;border:0}
  .method-item{border:0;border-top:1px solid #cad4da!important}
  .method-item:last-child{border-bottom:1px solid #cad4da}
  .cta-inner{display:block}
  .cta{padding:54px 0}
  .cta .btn{margin-top:23px}
  .page-hero{min-height:330px}
  .contact-form{grid-template-columns:1fr}
  .contact-form .full{grid-column:auto}
  .footer-inner{grid-template-columns:1fr;gap:27px}
  .footer-legal{display:block}
  .footer-legal span{display:block;margin-bottom:9px}
  .preview-page-hero{min-height:390px}
  .preview-capabilities-intro{padding:61px 0 42px}
  .preview-index-grid{grid-template-columns:1fr}
  .preview-index-card{min-height:124px}
  .preview-capabilities-list{padding-bottom:65px}
  .preview-capability{margin-top:24px;scroll-margin-top:105px}
  .preview-capability-media img{min-height:245px;height:245px}
  .preview-capability-media span{left:20px;bottom:18px;font-size:43px}
  .preview-capability-body{padding:30px 22px 28px}
  .preview-capability-body h2{font-size:31px}
  .preview-capability-summary{font-size:16px}
  .preview-service-groups{grid-template-columns:1fr}
  .preview-results ul{grid-template-columns:1fr}
  .preview-service-model{padding:65px 0}
  .preview-service-model-heading{display:block}
  .preview-service-model-heading p{margin-top:15px}
  .preview-service-model-grid{grid-template-columns:1fr;margin-top:30px}
  .preview-service-model-grid article{border-right:0;border-bottom:1px solid rgba(255,255,255,.24)!important}
  .preview-service-model-grid article:last-child{border-bottom:0!important}
}
@media(max-width:430px){
  .brand img{width:160px}
  .hero h1{font-size:28px}
  .section-title h2,.intro-copy h2,.page-hero h1{font-size:35px}
}