/* =========================================================
   Tandem Group — hoja de estilos compartida
   ========================================================= */
:root{
  --navy:#0e2c4c;
  --navy-2:#123a63;
  --navy-3:#153a66;
  --gold:#c9862f;
  --gold-dark:#b3762a;
  --cream:#faf5ea;
  --text-dark:#122942;
  --text-body:#33465c;
  --white:#ffffff;
  --max:1240px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',sans-serif;
  color:var(--text-body);
  line-height:1.6;
  background:var(--white);
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;color:var(--text-dark);line-height:1.2;}
h2{font-size:clamp(1.9rem,3.6vw,2.65rem);font-weight:700;margin-bottom:16px;}
h3{font-size:1.35rem;font-weight:700;}
h4{font-size:1.15rem;font-weight:700;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}
ul{list-style:none;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}
.eyebrow{
  color:var(--gold);
  font-weight:700;
  letter-spacing:.08em;
  font-size:.82rem;
  text-transform:uppercase;
  margin-bottom:14px;
  display:block;
}
.center{text-align:center;}
.title-dash{display:inline-block;width:56px;height:4px;background:var(--gold);border-radius:2px;margin-bottom:18px;}
.page-title{
  font-family:'Poppins',sans-serif;color:var(--navy);font-weight:800;
  font-size:clamp(2rem,4.4vw,3rem);text-transform:uppercase;letter-spacing:.02em;
}
.page-subtitle{
  font-size:clamp(1.15rem,2.2vw,1.5rem);font-weight:600;color:var(--text-dark);
  margin-bottom:0;max-width:640px;
}
.center .page-subtitle{margin-left:auto;margin-right:auto;}
.section{padding:88px 0;}
.section.cream{background:var(--cream);}
.section.navy{background:var(--navy);}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}
@media (max-width:768px){ .section{padding:56px 0;} }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 30px;
  border-radius:999px;
  font-weight:600;
  font-size:.98rem;
  cursor:pointer;
  border:2px solid transparent;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn-gold{background:var(--gold);color:#fff;}
.btn-gold:hover{background:var(--gold-dark);transform:translateY(-2px);}
.btn-outline{border-color:var(--gold);color:#fff;background:transparent;}
.btn-outline:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
.btn-outline-dark{border-color:var(--gold);color:var(--navy);background:transparent;}
.btn-outline-dark:hover{background:var(--cream);}
.btn-sm{padding:11px 22px;font-size:.9rem;}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:1000;
  background:var(--navy);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-wrap{
  max-width:var(--max);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
  height:86px;
}
.logo{display:flex;align-items:center;}
.logo img{height:40px;width:auto;display:block;}
nav.main-nav{display:flex;align-items:center;gap:40px;}
nav.main-nav a{
  color:#dfe7f0;
  font-weight:600;
  font-size:.92rem;
  letter-spacing:.03em;
  text-transform:uppercase;
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:all .2s;
}
nav.main-nav a:hover, nav.main-nav a.active{color:var(--gold);border-color:var(--gold);}
.nav-cta{display:flex;align-items:center;gap:18px;}
.hamburger{
  display:none;flex-direction:column;gap:5px;
  background:none;border:none;cursor:pointer;padding:8px;
}
.hamburger span{width:26px;height:2.5px;background:#fff;border-radius:2px;transition:all .25s;}
.mobile-nav{
  display:none;
  flex-direction:column;
  background:var(--navy-2);
  padding:10px 24px 24px;
}
.mobile-nav a{
  color:#dfe7f0;font-weight:600;padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  text-transform:uppercase;font-size:.9rem;letter-spacing:.03em;
}
.mobile-nav a.active{color:var(--gold);}
.mobile-nav .btn{margin-top:18px;justify-content:center;}

@media (max-width:980px){
  nav.main-nav{display:none;}
  .nav-cta .btn{display:none;}
  .hamburger{display:flex;}
  .mobile-nav.open{display:flex;}
}

/* ---------- Hero (home) ---------- */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  background:
    linear-gradient(100deg, rgba(9,26,48,.94) 10%, rgba(9,26,48,.55) 55%, rgba(9,26,48,.35) 100%),
    url('../img/hero-bg.jpg') center/cover no-repeat;
  color:#fff;
}
.hero-inner{max-width:var(--max);margin:0 auto;padding:100px 24px 70px;width:100%;}
.hero-dash{width:56px;height:4px;background:var(--gold);border-radius:2px;margin-bottom:26px;}
.hero h1{
  font-size:clamp(2.4rem,6vw,4.1rem);
  font-weight:800;
  color:#fff;
  text-transform:uppercase;
  margin-bottom:6px;
}
.hero h1 .accent{color:var(--gold);display:block;}
.hero p.lead{
  max-width:560px;margin:26px 0 40px;
  color:#e4ecf4;
  font-size:1.12rem;
}
.hero-buttons{display:flex;gap:18px;flex-wrap:wrap;}
.scroll-hint{
  position:absolute;bottom:34px;left:0;right:0;
  text-align:center;color:#cfdbe8;font-size:.9rem;
}
.scroll-hint svg{display:block;margin:10px auto 0;animation:bounce 1.8s infinite;}
@keyframes bounce{0%,100%{transform:translateY(0);}50%{transform:translateY(6px);}}

/* ---------- Page banner (Nosotros / Servicios / Contacto) ---------- */
.page-banner{
  position:relative;
  padding:96px 0 64px;
  background:
    linear-gradient(100deg, rgba(9,26,48,.92) 20%, rgba(9,26,48,.72) 100%),
    url('../img/page-banner-bg.jpg') center/cover no-repeat;
  color:#fff;
}
.page-banner .breadcrumb{
  color:#cfdbe8;font-size:.9rem;font-weight:600;letter-spacing:.03em;margin-bottom:14px;
}
.page-banner .breadcrumb a{color:#cfdbe8;}
.page-banner .breadcrumb a:hover{color:var(--gold);}
.page-banner .breadcrumb .sep{margin:0 8px;color:var(--gold);}
.page-banner h1{
  font-family:'Poppins',sans-serif;
  color:#fff;
  font-size:clamp(2.1rem,4.6vw,3.2rem);
  font-weight:800;
  text-transform:uppercase;
}
.page-banner p{max-width:560px;margin-top:14px;color:#e4ecf4;font-size:1.02rem;}

/* ---------- Two col generic ---------- */
.two-col{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
@media (max-width:900px){ .two-col{grid-template-columns:1fr;gap:36px;} }
.two-col img{border-radius:14px;box-shadow:0 20px 45px rgba(14,44,76,.18);width:100%;object-fit:cover;aspect-ratio:4/3;}
.two-col.reverse .col-text{order:2;}
.two-col.reverse .col-img{order:1;}
@media (max-width:900px){ .two-col.reverse .col-text, .two-col.reverse .col-img{order:initial;} }

/* Image variant matching the Servicios mockup proportions (wide, ~1.7:1) */
.two-col.img-sm img{max-width:560px;width:100%;height:330px;aspect-ratio:auto;object-fit:cover;margin:0 auto;}
@media (max-width:900px){ .two-col.img-sm img{max-width:100%;height:auto;aspect-ratio:16/9;} }

.col-text h2{margin-bottom:20px;}
.col-text p{margin-bottom:28px;font-size:1.02rem;}

/* ---------- Servicios cards (home teaser) ---------- */
.services-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:56px;
}
@media (max-width:900px){ .services-grid{grid-template-columns:1fr;} }
.service-card{
  background:#fff;border-radius:16px;padding:40px 32px;
  box-shadow:0 12px 30px rgba(20,45,75,.08);
  transition:transform .25s, box-shadow .25s;
}
.service-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(20,45,75,.14);}
.service-icon{
  width:64px;height:64px;border-radius:50%;
  background:var(--navy);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:26px;
}
.service-icon svg{width:28px;height:28px;stroke:var(--gold);}
.service-card h3{margin-bottom:14px;}
.service-card p{margin-bottom:22px;}
.service-card a{color:var(--navy);font-weight:700;display:inline-flex;align-items:center;gap:8px;}
.service-card a:hover{color:var(--gold);}
.center-btn{text-align:center;margin-top:52px;}

/* ---------- Stats bar ---------- */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
}
@media (max-width:900px){ .stats-bar{grid-template-columns:1fr 1fr;row-gap:38px;} }
@media (max-width:520px){ .stats-bar{grid-template-columns:1fr;} }
.stat-item{
  padding:0 30px;
  border-left:2px solid rgba(201,134,47,.5);
}
.stat-item:first-child{border-left:none;}
@media (max-width:900px){ .stat-item{border-left:none;padding:0 16px;} }
.stat-item h4{color:var(--gold);margin-bottom:10px;}
.stat-item p{color:#dfe7f0;font-size:.98rem;}

/* ---------- Metodologia ---------- */
.steps-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:60px;
  position:relative;
}
@media (max-width:900px){ .steps-row{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .steps-row{grid-template-columns:1fr;} }
.step{text-align:left;position:relative;}
.step-circle{
  width:86px;height:86px;border-radius:50%;
  background:var(--navy);
  margin-bottom:26px;
  position:relative;
  display:flex;align-items:center;justify-content:center;
}
.step-circle svg{width:34px;height:34px;stroke:var(--gold);}
.steps-row::before{
  content:"";
  position:absolute;top:43px;left:calc(12.5% + 43px);right:calc(12.5% + 43px);
  height:2px;background:var(--gold);
  z-index:0;
}
@media (max-width:900px){ .steps-row::before{display:none;} }
.step h4{margin-bottom:10px;}
.step p{font-size:.95rem;}

/* ---------- Nuestra experiencia ---------- */
.experiencia-list{margin:26px 0 32px;}
.experiencia-list li{
  position:relative;padding-left:30px;margin-bottom:14px;color:var(--text-body);font-weight:500;
}
.experiencia-list li::before{
  content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--gold);
}
.experiencia-list li::after{
  content:"";position:absolute;left:5px;top:10px;width:6px;height:3px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);
}

/* ---------- CTA banner ---------- */
.cta-banner{
  position:relative;
  padding:70px 0;
  background:
    linear-gradient(100deg, rgba(9,26,48,.92) 20%, rgba(9,26,48,.6) 100%),
    url('../img/page-banner-bg.jpg') center/cover no-repeat;
  color:#fff;
}
.cta-inner{
  display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;margin-bottom:8px;max-width:560px;}
.cta-inner p{color:#dbe4ee;}
.cta-actions{display:flex;gap:16px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
footer{background:var(--cream);padding:70px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:56px;
}
@media (max-width:900px){ .footer-grid{grid-template-columns:1fr 1fr;row-gap:40px;} }
@media (max-width:560px){ .footer-grid{grid-template-columns:1fr;} }
.footer-logo{margin-bottom:14px;}
.footer-logo img{height:38px;width:auto;}
.footer-tagline{color:var(--gold);font-weight:700;font-size:.85rem;letter-spacing:.04em;margin-bottom:18px;}
.socials{display:flex;gap:10px;}
.socials a{
  width:34px;height:34px;border-radius:8px;background:var(--gold);
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-size:.9rem;
}
.footer-grid h5{color:var(--gold);font-weight:700;margin-bottom:18px;font-size:1rem;}
.footer-grid ul li{margin-bottom:12px;}
.footer-grid ul a{color:var(--text-dark);font-size:.95rem;}
.footer-grid ul a:hover{color:var(--gold);}
.footer-bottom{
  border-top:1px solid rgba(14,44,76,.12);
  padding:22px 0;text-align:center;color:var(--text-dark);font-size:.88rem;
}

/* ---------- Nosotros page ---------- */
.cards-2{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:56px;}
@media (max-width:800px){ .cards-2{grid-template-columns:1fr;} }
.info-card{
  background:#fff;border-radius:16px;padding:40px;
  box-shadow:0 12px 30px rgba(20,45,75,.08);
}
.info-card h3{color:var(--navy);margin-bottom:18px;letter-spacing:.04em;}

.values-row{
  display:grid;grid-template-columns:repeat(4,1fr);margin-top:50px;
}
@media (max-width:900px){ .values-row{grid-template-columns:1fr 1fr;row-gap:36px;} }
@media (max-width:520px){ .values-row{grid-template-columns:1fr;} }
.value-item{padding:0 26px;border-left:2px solid rgba(201,134,47,.5);text-align:center;}
.value-item:first-child{border-left:none;}
@media (max-width:900px){ .value-item{border-left:none;} }
.value-icon{
  width:56px;height:56px;border-radius:50%;background:var(--navy);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
}
.value-icon svg{width:24px;height:24px;stroke:var(--gold);}
.value-item h4{margin-bottom:12px;}

.team-row{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin-top:50px;}
@media (max-width:760px){ .team-row{grid-template-columns:1fr;} }
.team-member{display:flex;gap:22px;align-items:flex-start;}
.team-avatar{
  width:110px;height:110px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg, var(--navy), var(--navy-2));
  display:flex;align-items:center;justify-content:center;
  font-family:'Poppins',sans-serif;font-weight:700;font-size:1.9rem;color:var(--gold);
  border:3px solid var(--cream);box-shadow:0 8px 20px rgba(20,45,75,.14);
}
.team-member h4{font-size:1.2rem;border-bottom:2px solid var(--gold);display:inline-block;padding-bottom:3px;margin-bottom:6px;}
.team-member .role{color:var(--gold);font-weight:700;font-size:.85rem;margin-bottom:10px;display:block;}
.team-member .contact-line{display:flex;align-items:center;gap:8px;font-size:.92rem;margin-bottom:6px;color:var(--text-body);}
.team-member .contact-line svg{width:15px;height:15px;flex-shrink:0;stroke:var(--gold);}
.team-member a.contact-line:hover{color:var(--gold);}

/* ---------- Nuestra experiencia: highlight cards (Nosotros) ---------- */
.experiencia-highlights{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px;
}
@media (max-width:640px){ .experiencia-highlights{grid-template-columns:1fr;} }
.highlight-card{
  background:#fff;border-radius:14px;padding:28px 26px;
  box-shadow:0 12px 30px rgba(20,45,75,.08);
  border-top:3px solid var(--gold);
}
.highlight-card h4{margin-bottom:10px;}
.highlight-card p{font-size:.93rem;color:var(--text-body);}

/* ---------- Nuestro liderazgo ---------- */
.leadership-intro{max-width:820px;margin:0 auto;text-align:center;}
.leadership-cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:50px;
}
@media (max-width:800px){ .leadership-cards{grid-template-columns:1fr;} }
.leadership-card{
  background:#fff;border-radius:16px;padding:36px 32px;
  box-shadow:0 12px 30px rgba(20,45,75,.08);
  text-align:center;
}
.leadership-card h4{color:var(--navy);margin-bottom:12px;}
.leadership-card p{font-size:.95rem;}

/* ---------- Respaldo técnico internacional ---------- */
.credential-grid{
  display:grid;grid-template-columns:1.1fr repeat(3,1fr);gap:26px;align-items:stretch;margin-top:50px;
}
@media (max-width:900px){ .credential-grid{grid-template-columns:1fr;} }
.credential-intro{
  background:var(--navy);color:#fff;border-radius:16px;padding:34px 30px;
  display:flex;flex-direction:column;justify-content:center;
}
.credential-intro h3{color:#fff;font-size:1.1rem;letter-spacing:.03em;margin-bottom:14px;}
.credential-intro p{color:#dfe7f0;font-size:.92rem;}
.credential-card{
  background:#fff;border:1.5px solid rgba(14,44,76,.12);border-radius:16px;padding:30px 26px;
}
.credential-card h4{color:var(--gold);margin-bottom:10px;letter-spacing:.03em;}
.credential-card p{font-size:.92rem;color:var(--text-body);}

/* ---------- Servicios detail ---------- */
.service-detail-block{padding:70px 0;}
.service-detail-block .eyebrow{margin-bottom:10px;}
.service-detail-block h2{margin-bottom:14px;}
.list-benefits{
  background:var(--cream);padding:50px 0;
}
.benefits-grid{
  display:grid;grid-template-columns:1fr 1fr auto;gap:40px;align-items:start;
}
@media (max-width:900px){ .benefits-grid{grid-template-columns:1fr;} }
.benefits-col h4{color:var(--gold);font-size:.95rem;letter-spacing:.04em;margin-bottom:20px;text-transform:uppercase;}
.benefits-col ul li{
  position:relative;padding-left:22px;margin-bottom:12px;color:var(--text-body);
}
.benefits-col ul li::before{
  content:"";position:absolute;left:0;top:8px;width:8px;height:8px;background:var(--gold);
}
.benefits-col:first-child{border-right:2px solid rgba(201,134,47,.4);padding-right:30px;}
@media (max-width:900px){ .benefits-col:first-child{border-right:none;padding-right:0;padding-bottom:20px;border-bottom:2px solid rgba(201,134,47,.4);margin-bottom:20px;} }
.benefits-grid .btn{align-self:center;}
@media (max-width:900px){ .benefits-grid .btn{margin-top:10px;} }

.why-row{margin-top:50px;}

/* "Por qué elegir" as bordered cards */
.why-cards{
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:50px;
}
@media (max-width:900px){ .why-cards{grid-template-columns:1fr 1fr;} }
@media (max-width:560px){ .why-cards{grid-template-columns:1fr;} }
.why-card{
  border:1.5px solid rgba(201,134,47,.4);border-radius:14px;padding:30px 26px;
  border-top:3px solid var(--gold);background:#fff;
}
.why-card h4{color:var(--gold);margin-bottom:10px;font-size:1.02rem;}
.why-card p{color:var(--text-body);font-size:.95rem;}

/* FAQ accordion */
.faq-list{max-width:820px;margin:50px auto 0;}
.faq-grid-2col{
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:repeat(2,auto);grid-auto-flow:column;gap:20px;margin-top:36px;
}
@media (max-width:800px){ .faq-grid-2col{grid-template-columns:1fr;grid-auto-flow:row;} }
.faq-acc-item{
  border:1.5px solid rgba(14,44,76,.12);border-radius:12px;margin-bottom:14px;
  background:#fff;overflow:hidden;
}
.faq-acc-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:none;text-align:left;cursor:pointer;
  font-family:'Poppins',sans-serif;font-weight:700;font-size:1rem;color:var(--text-dark);
}
.faq-acc-btn .chevron{
  flex-shrink:0;width:20px;height:20px;stroke:var(--gold);stroke-width:2.4;
  transition:transform .25s ease;
}
.faq-acc-item.open .faq-acc-btn .chevron{transform:rotate(180deg);}
.faq-acc-panel{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-acc-item.open .faq-acc-panel{max-height:220px;}
.faq-acc-panel p{padding:0 24px 22px;color:var(--text-body);}
.faq-cta{text-align:center;margin-top:44px;}

.steps-numbered{
  display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:50px;
}
@media (max-width:900px){ .steps-numbered{grid-template-columns:1fr 1fr;} }
@media (max-width:520px){ .steps-numbered{grid-template-columns:1fr;} }
.step-num{display:flex;align-items:center;gap:16px;}
.step-num .circle{
  width:56px;height:56px;border-radius:50%;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:'Poppins',sans-serif;
  font-weight:700;flex-shrink:0;font-size:1.05rem;
}
.step-num h4{color:var(--gold);}

/* "Como trabajamos" on a dark navy band (Servicios) */
.steps-navy h2{color:var(--gold);}
.steps-navy .step-num .circle{background:var(--gold);color:var(--navy);}
.steps-navy .step-num h4{color:#fff;}

/* ---------- Contacto ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-top:50px;}
@media (max-width:900px){ .contact-grid{grid-template-columns:1fr;} }
.contact-info-item{display:flex;gap:16px;margin-bottom:28px;align-items:flex-start;}
.contact-info-item .icon{
  width:46px;height:46px;border-radius:12px;background:var(--navy);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.contact-info-item .icon svg{width:20px;height:20px;stroke:var(--gold);}
.contact-info-item h4{margin-bottom:4px;}
.contact-form{background:#fff;border-radius:16px;padding:40px;box-shadow:0 12px 30px rgba(20,45,75,.08);}
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-weight:600;color:var(--text-dark);margin-bottom:8px;font-size:.92rem;}
.form-row input, .form-row textarea{
  width:100%;padding:13px 16px;border:1.5px solid #e2e4e8;border-radius:10px;
  font-family:'Inter',sans-serif;font-size:.95rem;color:var(--text-dark);
  background:var(--cream);
}
.form-row input:focus, .form-row textarea:focus{outline:none;border-color:var(--gold);}
.contact-form .btn{width:100%;justify-content:center;border:none;}
.form-status{margin-top:14px;font-size:.9rem;font-weight:600;}
.form-status.ok{color:#2e7d4f;}
.form-status.err{color:#b3271f;}

section[id]{scroll-margin-top:86px;}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--gold);color:#fff;
  padding:12px 20px;z-index:2000;border-radius:0 0 8px 0;font-weight:700;
}
.skip-link:focus{left:0;}