/* ===================== VARIABLES ===================== */
:root{
  --navy:#0d2a52;          /* Azul industrial / marino dominante */
  --navy-dark:#081d3a;
  --navy-light:#16407a;
  --orange:#f7941d;        /* Acento construcción */
  --orange-dark:#e07d00;
  --yellow:#ffc328;
  --bg:#ffffff;
  --bg-soft:#f4f6fa;       /* Gris muy claro */
  --bg-mute:#eceff5;
  --text:#1c2733;
  --text-soft:#5a6675;
  --white:#ffffff;
  --border:#e2e7ef;
  --shadow:0 10px 30px rgba(13,42,82,.10);
  --shadow-lg:0 20px 50px rgba(13,42,82,.18);
  --radius:14px;
  --maxw:1180px;
}

/* ===================== RESET ===================== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===================== BUTTONS ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;border:none;cursor:pointer;border-radius:10px;
  padding:14px 26px;font-size:.98rem;transition:transform .18s ease,box-shadow .18s ease,background .2s ease;
  white-space:nowrap;
}
.btn-lg{padding:16px 32px;font-size:1.05rem}
.btn-block{width:100%}
.btn-primary{background:var(--orange);color:#1c1200;box-shadow:0 8px 22px rgba(247,148,29,.35)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(247,148,29,.45)}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ===================== NAVBAR ===================== */
.navbar{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:110px}
.brand{
  display:inline-flex;align-items:center;
  padding:10px 22px;border-radius:16px;
  background:linear-gradient(135deg,#ffffff,#eef2f8);
  box-shadow:0 6px 18px rgba(13,42,82,.16);
  border:1px solid rgba(13,42,82,.08);
  transition:transform .25s ease,box-shadow .25s ease;
}
.brand:hover{transform:translateY(-2px) scale(1.03);box-shadow:0 12px 28px rgba(13,42,82,.26)}
.brand-logo{
  height:88px;width:auto;object-fit:contain;
  filter:drop-shadow(0 2px 4px rgba(13,42,82,.25));
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-weight:600;color:var(--navy);font-size:.97rem;transition:color .2s}
.nav-links a:hover{color:var(--orange-dark)}
.nav-links .nav-cta{
  background:var(--navy);color:#fff;padding:10px 20px;border-radius:8px;
}
.nav-links .nav-cta:hover{background:var(--navy-light);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:3px;background:var(--navy);border-radius:3px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ===================== HERO ===================== */
.hero{
  position:relative;
  background:url('imagenes/imagen1.jpg') center/cover no-repeat;
  color:#fff;
  min-height:88vh;
  display:flex;align-items:center;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(8,29,58,.92) 0%,rgba(13,42,82,.78) 55%,rgba(8,29,58,.55) 100%);
}
.hero-content{position:relative;z-index:2;max-width:760px;padding-top:60px;padding-bottom:60px}
.hero-eyebrow{
  display:inline-block;background:rgba(247,148,29,.18);color:var(--yellow);
  border:1px solid rgba(247,148,29,.5);
  padding:7px 16px;border-radius:50px;font-size:.82rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase;
  margin-bottom:22px;
}
.hero h1{font-size:clamp(2.1rem,5vw,3.6rem);line-height:1.12;font-weight:900;letter-spacing:-.5px}
.hero h1 .accent{color:var(--orange)}
.hero-sub{font-size:clamp(1rem,2vw,1.2rem);color:#dde6f2;margin:22px 0 26px;max-width:620px}
.hero-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px 22px;
  max-width:660px;margin:0 0 34px;
}
.hero-list li{
  position:relative;padding-left:26px;
}
.hero-list li::before{
  content:"";position:absolute;left:0;top:7px;
  width:12px;height:12px;border-radius:3px;
  background:var(--orange);box-shadow:0 0 0 4px rgba(247,148,29,.22);
}
.hl-title{display:block;font-weight:700;color:#fff;font-size:1rem}
.hl-desc{display:block;color:#c2d0e3;font-size:.9rem;line-height:1.4}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}

/* ===================== SECTION HEAD ===================== */
.section-head{text-align:center;max-width:680px;margin:0 auto 50px}
.kicker{
  display:inline-block;color:var(--orange-dark);font-weight:700;
  text-transform:uppercase;letter-spacing:1.5px;font-size:.8rem;margin-bottom:12px;
}
.kicker.light{color:var(--yellow)}
.section-head h2{font-size:clamp(1.7rem,3.5vw,2.5rem);font-weight:800;color:var(--navy);letter-spacing:-.5px}
.section-lead{color:var(--text-soft);margin-top:12px;font-size:1.05rem}

/* ===================== VALUE ===================== */
.value{padding:90px 0;background:var(--bg)}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.value-card{
  background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);
  padding:38px 30px;text-align:center;transition:transform .25s ease,box-shadow .25s ease;
}
.value-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.value-icon{
  width:72px;height:72px;margin:0 auto 22px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--navy),var(--navy-light));color:var(--yellow);
}
.value-icon svg{width:34px;height:34px}
.value-card h3{font-size:1.25rem;color:var(--navy);margin-bottom:10px;font-weight:700}
.value-card p{color:var(--text-soft)}

/* ===================== CATEGORIES ===================== */
.categories{padding:90px 0;background:var(--bg-soft)}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.cat-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.cat-media{position:relative;height:200px;overflow:hidden}
.cat-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-media img{transform:scale(1.08)}
.cat-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(13,42,82,.35))}
.cat-body{padding:22px 22px 26px}
.cat-body h3{color:var(--navy);font-size:1.18rem;margin-bottom:8px;font-weight:700}
.cat-body p{color:var(--text-soft);font-size:.95rem}

/* ===================== IMPACT ===================== */
.impact{padding:84px 0;background:linear-gradient(135deg,var(--navy),var(--navy-light));color:#fff}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-bottom:54px}
.stat{text-align:center;padding:14px}
.stat-num{display:block;font-size:clamp(2.4rem,5vw,3.4rem);font-weight:900;color:var(--orange);line-height:1}
.stat-label{display:block;margin-top:10px;color:#cdd9ea;font-weight:600;letter-spacing:.3px}
.testimonial{
  max-width:780px;margin:0 auto;text-align:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);padding:40px 36px;
}
.testimonial blockquote{font-size:clamp(1.05rem,2.2vw,1.35rem);font-style:italic;color:#eef3fa;line-height:1.55}
.testimonial blockquote::before{content:"“";color:var(--orange);font-size:2.4rem;font-weight:900;vertical-align:-.35em;margin-right:4px}
.testimonial figcaption{margin-top:22px}
.t-name{display:block;font-weight:800;color:var(--yellow)}
.t-role{display:block;color:#bcc9dc;font-size:.92rem}

/* ===================== FOOTER ===================== */
.footer{background:var(--navy-dark);color:#c2cee0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:64px 24px 44px}
.footer-logo{
  height:110px;width:auto;margin-bottom:18px;
  background:linear-gradient(135deg,#ffffff,#eef2f8);
  padding:16px 24px;border-radius:16px;
  box-shadow:0 8px 22px rgba(0,0,0,.35);
  filter:drop-shadow(0 2px 4px rgba(0,0,0,.2));
}
.footer-brand p{color:#9fb0c8;max-width:300px}
.footer-col h4{color:#fff;font-size:1.05rem;margin-bottom:16px;font-weight:700}
.footer-col ul li{margin-bottom:10px;font-size:.95rem}
.footer-col a{transition:color .2s}
.footer-col a:hover{color:var(--orange)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:.88rem;color:#8295b0;text-align:center}

/* ===================== RESPONSIVE ===================== */
@media (max-width:980px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .quote-inner{grid-template-columns:1fr;gap:34px}
}
@media (max-width:760px){
  .nav-links{
    position:absolute;top:110px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .nav-links.open{max-height:340px}
  .nav-links a{padding:16px 24px;border-top:1px solid var(--border)}
  .nav-links .nav-cta{margin:14px 24px;text-align:center}
  .nav-toggle{display:flex}
  .value-grid{grid-template-columns:1fr}
  .hero-list{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .cat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;text-align:left}
  .hero{min-height:auto;padding:40px 0}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
}