/* ==========================================================================
   Nux — Design system
   Fuente: nux-branding/manual-de-marca.html (paleta, tipografía, jerarquía)
   ========================================================================== */

:root{
  --navy:#0F2D52;
  --azul:#1A6FBF;
  --azul-dark:#155a9c;
  --white:#FFFFFF;
  --gray-dark:#2B2F36;
  --gray-light:#F2F4F7;
  --border:rgba(15,45,82,0.12);
  --border-on-dark:rgba(255,255,255,0.16);
  --muted:#5b6270;

  --font-head:'Manrope',-apple-system,'Helvetica Neue',Arial,sans-serif;
  --font-body:'Inter',-apple-system,'Helvetica Neue',Arial,sans-serif;

  --pad-x:clamp(20px,6vw,96px);
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(15,45,82,0.08);
  --shadow-lg:0 20px 50px rgba(15,45,82,0.16);

  --header-h:72px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--gray-dark);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.6;
}

img,svg{max-width:100%;display:block;}

h1,h2,h3,h4{
  font-family:var(--font-head);
  color:var(--navy);
  margin:0;
  line-height:1.15;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(32px,6vw,52px);font-weight:800;}
h2{font-size:clamp(26px,4.2vw,38px);font-weight:800;}
h3{font-size:clamp(19px,2.6vw,22px);font-weight:700;}
h4{font-size:16px;font-weight:700;}

p{margin:0 0 1em;color:var(--gray-dark);}
p:last-child{margin-bottom:0;}

a{color:var(--azul);text-decoration:none;}
a:hover{text-decoration:underline;}

ul{margin:0;padding:0;list-style:none;}

.container{
  max-width:1180px;
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}

.kicker{
  display:inline-block;
  font-family:var(--font-head);
  font-weight:700;
  font-size:12.5px;
  color:var(--azul);
  letter-spacing:.12em;
  text-transform:uppercase;
  margin-bottom:14px;
}

.lede{
  font-size:clamp(16px,2vw,18px);
  color:var(--muted);
  max-width:640px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-head);font-weight:700;font-size:15px;
  padding:14px 26px;border-radius:999px;border:2px solid transparent;
  cursor:pointer;text-decoration:none;line-height:1.25;text-align:center;
  min-width:0;max-width:100%;
  transition:transform .15s ease,background .15s ease,border-color .15s ease,color .15s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--azul);color:#fff;}
.btn-primary:hover{background:var(--azul-dark);}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--border);}
.btn-outline:hover{border-color:var(--navy);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,0.4);}
.btn-outline-light:hover{border-color:#fff;}
.btn-white{background:#fff;color:var(--navy);}
.btn-white:hover{background:#eef2f6;}
.btn-lg{padding:16px 32px;font-size:16px;}
.btn svg{width:18px;height:18px;flex:none;}

.btn-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  border-bottom:1px solid var(--border);
  height:var(--header-h);
  display:flex;align-items:center;
}
/* El blur vive en un pseudo-elemento a propósito: backdrop-filter en el
   propio .site-header crearía un containing block nuevo para sus
   descendientes position:fixed (el menú mobile), rompiendo top/bottom
   relativos al viewport. */
.site-header::before{
  content:'';position:absolute;inset:0;z-index:-1;
  background:rgba(255,255,255,0.92);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;width:100%;}
.brand-link{display:flex;align-items:center;}
.brand-link img{height:26px;width:auto;}

.main-nav{display:flex;align-items:center;gap:36px;}
.main-nav ul{display:flex;gap:30px;}
.main-nav a{
  font-family:var(--font-head);font-weight:600;font-size:14.5px;color:var(--navy);
  padding:6px 0;position:relative;
}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--azul);
  transition:width .2s ease;
}
.main-nav a:hover,.main-nav a[aria-current="page"]{text-decoration:none;}
.main-nav a:hover::after,.main-nav a[aria-current="page"]::after{width:100%;}
.main-nav a[aria-current="page"]{color:var(--azul);}

.nav-toggle{
  display:none;background:none;border:none;cursor:pointer;padding:8px;margin:-8px;
  width:40px;height:40px;align-items:center;justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:'';display:block;width:22px;height:2px;background:var(--navy);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;position:relative;
}
.nav-toggle span::before{position:absolute;top:-7px;}
.nav-toggle span::after{position:absolute;top:7px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-7px) rotate(-45deg);}

/* ---------- sections ---------- */
main{display:block;}
.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.section-tight{padding-top:0;}
.bg-light{background:var(--gray-light);}
.bg-navy{background:var(--navy);color:#fff;}
.bg-navy h1,.bg-navy h2,.bg-navy h3{color:#fff;}
.bg-navy .lede{color:rgba(255,255,255,0.7);}
.bg-navy .kicker{color:#7fb0e0;}

.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- grid helpers ---------- */
.grid{display:grid;gap:28px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:32px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent;}
.card-icon{
  width:48px;height:48px;border-radius:12px;background:rgba(26,111,191,0.1);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;flex:none;
}
.card-icon svg{width:24px;height:24px;color:var(--azul);}
.card h3{margin-bottom:10px;}
.card p{color:var(--muted);font-size:15px;}

/* ---------- hero ---------- */
.hero{
  position:relative;background:var(--navy);color:#fff;overflow:hidden;
  padding:80px 0 100px;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(560px 420px at 88% -10%, rgba(26,111,191,0.45), transparent 60%),
    radial-gradient(480px 360px at 105% 60%, rgba(26,111,191,0.25), transparent 65%);
  pointer-events:none;
}
.hero .container{position:relative;}
.hero-inner{max-width:760px;}
.hero h1{color:#fff;margin-bottom:22px;}
.hero .lede{color:rgba(255,255,255,0.72);font-size:clamp(17px,2.4vw,20px);max-width:600px;margin-bottom:36px;}
.hero-trust{
  margin-top:56px;padding-top:28px;border-top:1px solid var(--border-on-dark);
  display:flex;flex-wrap:wrap;gap:36px;color:rgba(255,255,255,0.6);font-size:13.5px;
}
.hero-trust strong{color:#fff;display:block;font-family:var(--font-head);font-size:22px;margin-bottom:2px;}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:rgba(255,255,255,0.7);padding:64px 0 28px;}
.footer-top{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid var(--border-on-dark);
}
.footer-brand img{height:24px;margin-bottom:16px;}
.footer-brand p{color:rgba(255,255,255,0.55);font-size:14px;max-width:280px;}
.footer-col h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,0.65);font-size:14.5px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,0.45);
}

/* ---------- reveal-on-scroll ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
[data-reveal].is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- misc components ---------- */
.tag{
  display:inline-flex;align-items:center;font-family:var(--font-head);font-weight:700;
  font-size:12px;padding:5px 12px;border-radius:20px;background:rgba(26,111,191,0.1);color:var(--azul);
}
.divider{height:1px;background:var(--border);border:none;margin:0;}
.eyebrow-icon{width:20px;height:20px;flex:none;color:var(--azul);}

.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--gray-dark);}
.check-list svg{width:20px;height:20px;flex:none;color:var(--azul);margin-top:1px;}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-family:var(--font-head);font-weight:700;font-size:13.5px;color:var(--navy);}
.form-field .optional{font-family:var(--font-body);font-weight:400;color:var(--muted);font-size:12.5px;}
.form-field input,
.form-field select,
.form-field textarea{
  font-family:var(--font-body);font-size:15px;color:var(--gray-dark);
  border:1.5px solid var(--border);border-radius:10px;padding:13px 15px;
  background:#fff;width:100%;transition:border-color .15s ease,box-shadow .15s ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;border-color:var(--azul);box-shadow:0 0 0 3px rgba(26,111,191,0.14);
}
.form-field textarea{resize:vertical;min-height:130px;}
.form-field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b6270' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:18px;padding-right:42px;}
.hp-field{position:absolute;left:-9999px;top:-9999px;opacity:0;pointer-events:none;}
.form-status{
  margin-top:18px;padding:14px 16px;border-radius:10px;font-size:14px;display:none;
}
.form-status.is-visible{display:block;}
.form-status.is-success{background:rgba(26,111,191,0.1);color:var(--azul-dark);}
.form-status.is-error{background:rgba(192,57,43,0.08);color:#a4291a;}

.contact-direct{display:flex;flex-direction:column;gap:22px;}
.contact-direct-item{display:flex;gap:16px;align-items:flex-start;}
.contact-direct-item .icon{
  width:44px;height:44px;border-radius:12px;background:rgba(26,111,191,0.1);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.contact-direct-item .icon svg{width:22px;height:22px;color:var(--azul);}
.contact-direct-item h4{margin-bottom:4px;}
.contact-direct-item a,.contact-direct-item span{font-size:15px;color:var(--gray-dark);}

@media (max-width:640px){
  .form-grid{grid-template-columns:1fr;}
}

/* ---------- mockup illustrations (portfolio) ---------- */
.mockup{
  border-radius:var(--radius);overflow:hidden;background:var(--gray-light);
  border:1px solid var(--border);aspect-ratio:4/3;position:relative;
}
.mockup-browser-bar{
  height:34px;background:#fff;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:6px;padding:0 14px;
}
.mockup-browser-bar span{width:8px;height:8px;border-radius:50%;background:var(--border);}
.mockup-body{padding:20px;display:flex;flex-direction:column;gap:12px;height:calc(100% - 34px);}
.mockup-block{border-radius:8px;background:rgba(15,45,82,0.06);}
.mockup-block.accent{background:var(--azul);}
.mockup-block.navy{background:var(--navy);}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:980px){
  .footer-top{grid-template-columns:1fr 1fr;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:860px){
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    background:#fff;padding:28px var(--pad-x);
    flex-direction:column;align-items:stretch;gap:28px;
    overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .18s ease,transform .18s ease,visibility 0s linear .18s;
  }
  .main-nav.is-open{
    opacity:1;visibility:visible;transform:translateY(0);
    transition:opacity .18s ease,transform .18s ease,visibility 0s linear 0s;
  }
  .main-nav ul{flex-direction:column;gap:22px;}
  .main-nav a{font-size:19px;display:block;}
  .main-nav .btn{width:100%;}
  .nav-toggle{display:inline-flex;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;gap:32px;}
  .section{padding:64px 0;}
  .hero{padding:56px 0 72px;}
  .hero-trust{gap:24px;}
}

@media (max-width:560px){
  .grid-4{grid-template-columns:1fr;}
  .btn-row{flex-direction:column;align-items:stretch;}
}

/* ---------- print ---------- */
@media print{
  .site-header,.nav-toggle,.no-print{display:none;}
}