/* ============================================================
   ASD TUG 70 — Landing comercial (Market Alliance)
   Paleta: Navy institucional + blanco + acentos dorado contenido
   ============================================================ */

:root{
  --navy-900:#050d1a;
  --navy-800:#0a1830;
  --navy-700:#0f2445;
  --navy-600:#16305e;
  --navy-500:#1e4079;
  --gold-500:#c9a24b;
  --gold-400:#dfc078;
  --white:#ffffff;
  --gray-100:#f4f6f9;
  --gray-200:#e6eaf0;
  --gray-400:#a6b0c3;
  --gray-600:#5c6779;
  --gray-800:#242c3a;
  --danger:#b23b3b;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(5,13,26,0.08);
  --shadow-md:0 8px 24px rgba(5,13,26,0.14);
  --shadow-lg:0 20px 50px rgba(5,13,26,0.25);
  --font-head:'Oswald', 'Segoe UI', sans-serif;
  --font-body:'Inter', 'Segoe UI', sans-serif;
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--gray-800);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-head);letter-spacing:0.02em;margin:0 0 .5em;color:var(--navy-900);}
p{margin:0 0 1em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--gray-100);}
.section-navy{background:var(--navy-900);color:var(--gray-200);}
.section-navy h2, .section-navy h3{color:var(--white);}
.eyebrow{
  display:inline-block;
  font-family:var(--font-head);
  font-size:.75rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold-500);
  margin-bottom:14px;
  font-weight:600;
}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center;}
.section-head h2{font-size:2rem;}
.section-head p{color:var(--gray-600);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);
  font-family:var(--font-head);font-size:.95rem;letter-spacing:.04em;
  text-transform:uppercase;font-weight:600;cursor:pointer;border:2px solid transparent;
  transition:all .2s ease; white-space:nowrap;
}
.btn-primary{background:var(--gold-500);color:var(--navy-900);border-color:var(--gold-500);}
.btn-primary:hover{background:var(--gold-400);border-color:var(--gold-400);}
.btn-outline{background:transparent;color:var(--white);border-color:rgba(255,255,255,0.5);}
.btn-outline:hover{border-color:var(--white);background:rgba(255,255,255,0.08);}
.btn-outline-navy{background:transparent;color:var(--navy-800);border-color:var(--navy-800);}
.btn-outline-navy:hover{background:var(--navy-800);color:var(--white);}
.btn-block{width:100%;}
.btn:disabled{opacity:.6;cursor:not-allowed;}

/* ---------- Top bar (legal strip) ---------- */
.top-strip{
  background:var(--navy-900);color:var(--gray-400);
  font-size:.78rem;padding:8px 0;
}
.top-strip .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
.top-strip a{color:var(--gray-400);}
.top-strip a:hover{color:var(--gold-400);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:500;
  background:rgba(5,13,26,0.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;gap:18px;}
.brand-group{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.brand-alliance img{height:34px;width:auto;}
.brand-divider{width:1px;height:28px;background:rgba(255,255,255,0.25);}
.brand-oilgas img{height:24px;width:auto;opacity:.92;}
.brand-asset{
  font-family:var(--font-head);color:var(--white);
  font-size:1.05rem;letter-spacing:.06em;text-transform:uppercase;
  padding-left:16px;border-left:1px solid rgba(255,255,255,0.25);
}
.brand-asset span{display:block;font-size:.6rem;color:var(--gold-400);letter-spacing:.18em;font-weight:400;}

.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{
  color:var(--gray-200);font-size:.85rem;letter-spacing:.03em;
  font-family:var(--font-head);text-transform:uppercase;font-weight:500;
  padding:6px 2px;border-bottom:2px solid transparent;
}
.main-nav a:hover{color:var(--gold-400);border-color:var(--gold-400);}
.main-nav a.nav-market{color:var(--gold-400);}
.lang-switch{display:flex;gap:6px;align-items:center;margin-left:8px;}
.lang-switch a{
  padding:4px 9px;border:1px solid rgba(255,255,255,0.3);border-radius:4px;
  font-size:.72rem;color:var(--gray-200);
}
.lang-switch a.active{background:var(--gold-500);color:var(--navy-900);border-color:var(--gold-500);}
.nav-toggle{display:none;background:none;border:none;color:var(--white);font-size:1.5rem;cursor:pointer;}

@media (max-width:960px){
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:82%;max-width:340px;
    background:var(--navy-900);flex-direction:column;align-items:flex-start;
    padding:90px 28px 28px;gap:22px;transform:translateX(100%);
    transition:transform .3s ease;box-shadow:var(--shadow-lg);overflow-y:auto;
  }
  .main-nav a{white-space:normal;}
  .main-nav.open{transform:translateX(0);}
  .nav-toggle{display:block;}
  .lang-switch{margin-left:0;margin-top:12px;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:var(--white);
  background:linear-gradient(160deg,var(--navy-900) 0%,var(--navy-700) 55%,var(--navy-600) 100%);
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:90px 24px 70px;max-width:var(--maxw);margin:0 auto;
}
.hero-copy .eyebrow{color:var(--gold-400);}
.hero-copy h1{font-size:2.7rem;color:var(--white);line-height:1.15;margin-bottom:20px;}
.hero-copy p{color:var(--gray-400);font-size:1.08rem;max-width:540px;}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin:28px 0 20px;}
.hero-note{
  font-size:.82rem;color:var(--gray-400);border-left:3px solid var(--gold-500);
  padding-left:14px;max-width:520px;
}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3.1;}
.hero-media-badge{
  position:absolute;bottom:16px;left:16px;background:rgba(5,13,26,0.72);
  color:var(--gold-400);padding:8px 16px;border-radius:6px;font-family:var(--font-head);
  font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
}
.hero-stats{
  display:flex;gap:0;margin-top:36px;border-top:1px solid rgba(255,255,255,0.14);
  padding-top:28px;flex-wrap:wrap;
}
.hero-stat{flex:1;min-width:140px;padding-right:24px;}
.hero-stat strong{display:block;font-family:var(--font-head);font-size:1.7rem;color:var(--gold-400);}
.hero-stat span{font-size:.78rem;color:var(--gray-400);text-transform:uppercase;letter-spacing:.06em;}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;padding:56px 20px 48px;}
  .hero-copy h1{font-size:2.1rem;}
}

/* ---------- Breadcrumb / Market link banner ---------- */
.market-banner{
  background:var(--gold-500);color:var(--navy-900);padding:12px 0;font-size:.85rem;
}
.market-banner .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
.market-banner a{font-weight:700;text-decoration:underline;}

/* ---------- Resumen / Overview cards ---------- */
.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.summary-card{
  background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-md);
  padding:26px 22px;text-align:center;box-shadow:var(--shadow-sm);
}
.summary-card .icon{font-size:1.6rem;color:var(--gold-500);margin-bottom:12px;}
.summary-card strong{display:block;font-family:var(--font-head);font-size:1.5rem;color:var(--navy-900);}
.summary-card span{font-size:.78rem;color:var(--gray-600);text-transform:uppercase;letter-spacing:.04em;}
@media (max-width:860px){.summary-grid{grid-template-columns:repeat(2,1fr);}}

.overview-note{
  max-width:820px;margin:36px auto 0;background:var(--white);border-left:4px solid var(--gold-500);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:18px 24px;box-shadow:var(--shadow-sm);
  font-size:.92rem;color:var(--gray-600);
}

.applications-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px;}
.application-card{
  background:var(--navy-900);color:var(--gray-200);border-radius:var(--radius-md);
  padding:26px;text-align:left;
}
.application-card h4{color:var(--gold-400);font-size:1rem;margin-bottom:8px;}
.application-card p{font-size:.88rem;color:var(--gray-400);margin:0;}
@media (max-width:860px){.applications-list{grid-template-columns:1fr;}}

/* ---------- Specifications ---------- */
.spec-tabs{display:flex;gap:12px;justify-content:center;margin-bottom:32px;flex-wrap:wrap;}
.spec-tab-btn{
  padding:10px 22px;border-radius:30px;border:1px solid var(--gray-200);background:var(--white);
  font-family:var(--font-head);font-size:.82rem;letter-spacing:.04em;text-transform:uppercase;
  cursor:pointer;color:var(--navy-800);
}
.spec-tab-btn.active{background:var(--navy-900);color:var(--white);border-color:var(--navy-900);}
.spec-table-wrap{overflow-x:auto;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);}
table.spec-table{width:100%;border-collapse:collapse;background:var(--white);min-width:560px;}
table.spec-table th, table.spec-table td{
  padding:14px 20px;text-align:left;border-bottom:1px solid var(--gray-200);font-size:.92rem;
}
table.spec-table thead th{
  background:var(--navy-900);color:var(--white);font-family:var(--font-head);
  text-transform:uppercase;letter-spacing:.04em;font-size:.78rem;
}
table.spec-table tbody tr:nth-child(even){background:var(--gray-100);}
table.spec-table td.value{font-weight:600;color:var(--navy-800);}
.spec-panel{display:none;}
.spec-panel.active{display:block;}
.spec-caption{margin-top:14px;font-size:.8rem;color:var(--gray-600);}
.spec-disclaimer{
  margin-top:28px;background:#fbf4e4;border:1px solid var(--gold-400);border-radius:var(--radius-sm);
  padding:16px 20px;font-size:.85rem;color:var(--gray-800);
}

/* ---------- Gallery ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.gallery-item{border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);position:relative;background:var(--navy-900);}
.gallery-item img{width:100%;height:340px;object-fit:cover;transition:transform .4s ease;}
.gallery-item:hover img{transform:scale(1.04);}
.gallery-item .cap{
  position:absolute;bottom:0;left:0;right:0;background:linear-gradient(to top,rgba(5,13,26,0.85),transparent);
  color:var(--white);padding:16px;font-size:.82rem;
}
.gallery-video-pending{
  border:2px dashed var(--gray-400);border-radius:var(--radius-md);
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  padding:40px 24px;color:var(--gray-600);height:340px;background:var(--gray-100);
}
.gallery-video-pending .icon{font-size:2rem;color:var(--gold-500);margin-bottom:10px;}
.gallery-caption-note{margin-top:22px;text-align:center;font-size:.85rem;color:var(--gray-600);}
.video-wrap{
  margin-top:24px;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);
  background:var(--navy-900);
}
.video-wrap video{width:100%;max-height:560px;display:block;background:#000;}
@media (max-width:760px){.gallery-grid{grid-template-columns:1fr;}}

/* ---------- Process ---------- */
.process-steps{
  display:grid;grid-template-columns:repeat(6,1fr);gap:16px;counter-reset:step;
}
.process-step{
  background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-md);
  padding:22px 16px;text-align:center;position:relative;
}
.process-step::before{
  counter-increment:step;content:counter(step);
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;background:var(--navy-900);color:var(--gold-400);
  font-family:var(--font-head);margin:0 auto 14px;font-size:.95rem;
}
.process-step h4{font-size:.92rem;margin-bottom:6px;}
.process-step p{font-size:.8rem;color:var(--gray-600);margin:0;}
@media (max-width:960px){.process-steps{grid-template-columns:repeat(3,1fr);}}
@media (max-width:640px){.process-steps{grid-template-columns:1fr 1fr;}}

/* ---------- Alliance role ---------- */
.role-box{
  max-width:900px;margin:0 auto;background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.14);border-radius:var(--radius-lg);
  padding:36px 40px;
}
.role-box p{color:var(--gray-200);font-size:1rem;}
.disclosure-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px;}
.disclosure-item{
  background:rgba(255,255,255,0.03);border-left:3px solid var(--gold-500);
  padding:14px 18px;font-size:.85rem;color:var(--gray-400);border-radius:0 6px 6px 0;
}
@media (max-width:760px){.disclosure-grid{grid-template-columns:1fr;}}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:flex-start;}
.contact-info h3{font-size:1.2rem;}
.contact-info ul{list-style:none;padding:0;margin:20px 0;}
.contact-info li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--gray-200);font-size:.92rem;
}
.contact-info li strong{display:block;color:var(--navy-900);font-family:var(--font-head);font-size:.82rem;text-transform:uppercase;letter-spacing:.03em;}
.contact-form{
  background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-md);
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:.8rem;font-family:var(--font-head);text-transform:uppercase;letter-spacing:.03em;color:var(--navy-800);margin-bottom:6px;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:12px 14px;border:1px solid var(--gray-200);border-radius:var(--radius-sm);
  font-family:var(--font-body);font-size:.94rem;background:var(--gray-100);
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--navy-600);background:var(--white);
}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-consent{font-size:.78rem;color:var(--gray-600);display:flex;gap:8px;align-items:flex-start;margin-bottom:18px;}
.form-consent input{width:auto;margin-top:3px;}
.form-msg{
  margin-top:16px;padding:14px 16px;border-radius:var(--radius-sm);font-size:.85rem;display:none;
}
.form-msg.show{display:block;}
.form-msg.success{background:#e7f4ea;color:#22633a;border:1px solid #b9dfc4;}
.form-msg.error{background:#fbe8e8;color:#9c2b2b;border:1px solid #f2bcbc;}
.form-msg.info{background:#eef3fb;color:var(--navy-700);border:1px solid #cdddf3;}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}.form-row-2{grid-template-columns:1fr;}}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);color:var(--gray-400);padding:56px 0 24px;font-size:.85rem;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px;}
.footer-brand img{height:32px;margin-bottom:14px;}
.footer-col h5{color:var(--white);font-family:var(--font-head);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:14px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:8px;}
.footer-col a:hover{color:var(--gold-400);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.78rem;
}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}

/* ---------- Legal pages ---------- */
.legal-page{padding:60px 0 90px;}
.legal-page .container{max-width:860px;}
.legal-page h1{font-size:1.9rem;}
.legal-page h2{font-size:1.2rem;margin-top:2em;}
.legal-page p, .legal-page li{color:var(--gray-600);font-size:.95rem;}
.legal-page ul{padding-left:20px;}
.legal-updated{font-size:.8rem;color:var(--gray-400);margin-bottom:30px;}
.back-link{display:inline-block;margin-bottom:24px;font-size:.85rem;color:var(--navy-700);font-weight:600;}
.back-link:hover{color:var(--gold-500);}

/* ---------- Utility ---------- */
.text-center{text-align:center;}
.mt-lg{margin-top:48px;}
.noindex-banner{
  background:var(--navy-800);color:var(--gray-400);text-align:center;font-size:.72rem;
  padding:6px 12px;letter-spacing:.03em;
}