/* ==========================================================================
   NEXORA SOLUCIONES — index styles
   Tipografía: pila de sistema (sin dependencias externas obligatorias)
   ========================================================================== */

:root{
  /* --- Paleta (tomada del logotipo oficial) --- */
  --navy-950:#050e1c;
  --navy-900:#081729;
  --navy-800:#0b1e33;
  --navy-700:#122c4a;
  --blue-500:#0074d9;
  --blue-400:#2b98ff;
  --green-500:#4caf1e;
  --green-600:#3c8c17;

  --bg:#f6f8fa;
  --surface:#ffffff;
  --ink:#0f1720;
  --ink-soft:#4c5866;
  --ink-faint:#7c8794;
  --border:#e3e8ee;

  --font-display: -apple-system, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: -apple-system, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 1180px;
  --radius-sm: 4px;
  --radius-md: 10px;
  --shadow-card: 0 1px 2px rgba(9,20,35,.06), 0 8px 24px -12px rgba(9,20,35,.18);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,h5{ margin:0; font-family:var(--font-display); font-weight:700; letter-spacing:-0.02em; color:var(--navy-900); }
p{ margin:0; }
button{ font:inherit; }

.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--navy-900); color:#fff;
  padding:12px 18px; z-index:200; border-radius:0 0 var(--radius-sm) 0;
}
.skip-link:focus{ left:0; }

:focus-visible{ outline:3px solid var(--blue-400); outline-offset:2px; }

/* ---------- Botones ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:var(--radius-sm); font-weight:600; font-size:.95rem;
  border:1.5px solid transparent; cursor:pointer; transition:transform .15s ease, background-color .15s ease, border-color .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--blue-500); color:#fff; }
.btn-primary:hover{ background:var(--blue-400); }
.btn-ghost{ background:transparent; color:#fff; border-color:rgba(255,255,255,.55); }
.btn-ghost:hover{ background:rgba(255,255,255,.12); border-color:#fff; }
.btn-whatsapp{ background:#1e9e56; color:#fff; }
.btn-whatsapp:hover{ background:#22b562; }
.btn-block{ width:100%; }
.btn .icon{ width:18px; height:18px; fill:currentColor; flex:none; }

.eyebrow{
  font-family:var(--font-display); font-weight:700; font-size:.85rem;
  color:var(--blue-500); margin:0 0 10px;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--border);
}
/* Nota: se evita "backdrop-filter" aquí a propósito: en varios navegadores
   convierte a este header en el "containing block" de elementos hijos con
   position:fixed (como el menú móvil), rompiendo su posicionamiento. */
.header-inner{
  max-width:var(--container); margin:0 auto; padding:12px 24px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.brand-logo{ height:38px; width:auto; }

.main-nav ul{ display:flex; gap:32px; }
.main-nav a{
  font-weight:600; font-size:.95rem; color:var(--navy-800);
  padding:6px 0; position:relative;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:2px;
  background:var(--blue-500); transition:right .2s ease;
}
.main-nav a:hover::after{ right:0; }

.header-actions{ display:flex; align-items:center; gap:14px; }
.header-actions .btn-whatsapp{ padding:10px 18px; font-size:.9rem; }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:40px; height:40px; background:none; border:none; cursor:pointer; padding:0;
}
.nav-toggle span{ width:100%; height:2px; background:var(--navy-900); border-radius:2px; transition:transform .2s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative; min-height:86vh; display:flex; align-items:flex-end;
  overflow:hidden; background:var(--navy-950);
}
.hero-media{ position:absolute; inset:0; }
.hero-media img{
  width:100%; height:100%; object-fit:cover; object-position:60% 45%;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  animation: hero-reveal 1.1s cubic-bezier(.22,.61,.36,1) both;
}
@keyframes hero-reveal{
  from{ clip-path: polygon(0 0, 46% 0, 30% 100%, 0 100%); transform:scale(1.04); }
  to{ clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); transform:scale(1); }
}
.hero-media-scrim{
  position:absolute; inset:0;
  background:
    linear-gradient(100deg, rgba(5,14,28,.94) 0%, rgba(5,14,28,.82) 22%, rgba(5,14,28,.35) 46%, rgba(5,14,28,.05) 62%),
    linear-gradient(0deg, rgba(5,14,28,.55) 0%, rgba(5,14,28,0) 34%);
}
.hero-content{
  position:relative; z-index:2; color:#fff;
  max-width:640px; padding:0 24px 88px; margin-left:max(24px, calc((100vw - var(--container)) / 2));
}
.hero-content .eyebrow{ color:var(--blue-400); }
.hero h1{
  color:#fff; font-size:clamp(2.1rem, 4.6vw, 3.3rem); line-height:1.08; margin-bottom:20px;
}
.hero-lead{ color:rgba(255,255,255,.86); font-size:1.08rem; max-width:52ch; margin-bottom:32px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

/* ==========================================================================
   SECTIONS — generales
   ========================================================================== */
.section{ padding:96px 0; }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head h2{ font-size:clamp(1.7rem, 3vw, 2.3rem); margin-bottom:14px; }
.section-head p{ color:var(--ink-soft); font-size:1.05rem; }

/* ==========================================================================
   SERVICIOS
   ========================================================================== */
.services{ background:var(--surface); }
.service-group{ margin-bottom:56px; }
.service-group:last-child{ margin-bottom:0; }

.service-group-title{
  font-size:1.15rem; padding-bottom:14px; margin-bottom:28px;
  border-bottom:2px solid var(--border);
  display:flex; align-items:center; gap:10px;
}
.service-group--energy .service-group-title::before{
  content:""; width:10px; height:10px; border-radius:2px; background:var(--blue-500); flex:none;
}
.service-group--complementary .service-group-title::before{
  content:""; width:10px; height:10px; border-radius:2px; background:var(--green-500); flex:none;
}

.service-grid{ display:grid; grid-template-columns:repeat(5, 1fr); gap:20px; }
.service-grid--six{ grid-template-columns:repeat(6, 1fr); }

.service-card{
  background:var(--bg); border:1px solid var(--border); border-radius:var(--radius-md);
  padding:24px 20px; transition:border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.service-card:hover{ border-color:var(--blue-400); transform:translateY(-3px); box-shadow:var(--shadow-card); }

.service-group--complementary .service-card:hover{ border-color:var(--green-500); }

.service-icon{
  display:flex; align-items:center; justify-content:center;
  width:46px; height:46px; border-radius:var(--radius-sm); margin-bottom:16px;
  background:rgba(0,116,217,.1); color:var(--blue-500);
}
.service-group--complementary .service-icon{ background:rgba(76,175,30,.1); color:var(--green-600); }
.service-icon svg{ width:24px; height:24px; fill:none; stroke:currentColor; stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round; }

.service-card h4{ font-size:1rem; margin-bottom:8px; line-height:1.3; }
.service-card p{ font-size:.9rem; color:var(--ink-soft); }

/* ==========================================================================
   PROYECTOS
   ========================================================================== */
.projects{ background:var(--bg); }
.project-gallery{ display:grid; grid-template-columns:repeat(3, 1fr); gap:20px; }
.project-gallery figure{ margin:0; border-radius:var(--radius-md); overflow:hidden; background:var(--navy-950); }
.project-gallery img{ width:100%; height:280px; object-fit:cover; transition:transform .4s ease; }
.project-gallery figure:hover img{ transform:scale(1.05); }
.project-gallery figcaption{
  padding:14px 16px; font-weight:600; font-size:.9rem; color:var(--navy-800); background:var(--surface);
  border:1px solid var(--border); border-top:none;
}

/* ==========================================================================
   NOSOTROS
   ========================================================================== */
.about{ background:var(--surface); }
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.about-media{ border-radius:var(--radius-md); overflow:hidden; }
.about-media img{ width:100%; height:100%; object-fit:cover; min-height:340px; }
.about-content h2{ font-size:clamp(1.6rem, 2.8vw, 2.1rem); margin-bottom:20px; }
.about-content p{ color:var(--ink-soft); margin-bottom:16px; font-size:1.02rem; }
.about-content p:last-child{ margin-bottom:0; }

/* ==========================================================================
   CTA BANNER
   ========================================================================== */
.cta-banner{ position:relative; padding:110px 24px; text-align:center; overflow:hidden; }
.cta-banner img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.cta-banner-scrim{ position:absolute; inset:0; background:linear-gradient(180deg, rgba(5,14,28,.7), rgba(5,14,28,.82)); }
.cta-banner-content{ position:relative; z-index:1; max-width:640px; margin:0 auto; }
.cta-banner h2{ color:#fff; font-size:clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom:28px; }

/* ==========================================================================
   CONTACTO
   ========================================================================== */
.contact{ background:var(--bg); }
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:start; }
.contact-info h2{ font-size:clamp(1.6rem, 2.8vw, 2.1rem); margin-bottom:14px; }
.contact-info > p{ color:var(--ink-soft); margin-bottom:28px; }

.contact-list{ margin-bottom:28px; display:flex; flex-direction:column; gap:18px; }
.contact-list li{ border-bottom:1px solid var(--border); padding-bottom:16px; }
.contact-label{ display:block; font-size:.8rem; font-weight:600; color:var(--ink-faint); margin-bottom:4px; }
.contact-list a{ font-weight:600; color:var(--navy-800); font-size:1.02rem; }
.contact-list a:hover{ color:var(--blue-500); }

.map-embed{
  margin-top:28px; border-radius:var(--radius-md); overflow:hidden; border:1px solid var(--border);
  aspect-ratio:16/10;
}
.map-embed iframe{ width:100%; height:100%; border:0; }

.contact-form{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md);
  padding:32px; box-shadow:var(--shadow-card);
}
.contact-form h3{ font-size:1.15rem; margin-bottom:22px; }
.form-field{ margin-bottom:18px; }
.form-field label{ display:block; font-size:.85rem; font-weight:600; color:var(--navy-800); margin-bottom:6px; }
.form-field input, .form-field select, .form-field textarea{
  width:100%; padding:12px 14px; border:1.5px solid var(--border); border-radius:var(--radius-sm);
  font:inherit; font-size:.95rem; color:var(--ink); background:var(--surface);
  transition:border-color .15s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{ border-color:var(--blue-500); }
.form-field textarea{ resize:vertical; min-height:96px; }
.form-error{ display:none; color:#c0392b; font-size:.8rem; margin-top:6px; }
.form-field.has-error input, .form-field.has-error select, .form-field.has-error textarea{ border-color:#c0392b; }
.form-field.has-error .form-error{ display:block; }
.form-status{ margin-top:16px; font-size:.9rem; font-weight:600; min-height:1.2em; }
.form-status.is-success{ color:var(--green-600); }
.form-status.is-error{ color:#c0392b; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{ background:var(--navy-950); color:rgba(255,255,255,.72); padding:64px 0 0; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:48px; padding-bottom:48px; }
.footer-brand .footer-logo{ height:34px; width:auto; margin-bottom:14px; filter:brightness(0) invert(1); opacity:.92; }
.footer-brand p{ color:rgba(255,255,255,.55); font-size:.9rem; }
.footer-col h5{ color:#fff; font-size:.85rem; text-transform:none; margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col li{ font-size:.9rem; color:rgba(255,255,255,.62); }
.footer-col a{ color:inherit; }
.footer-col a:hover{ color:#fff; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1); padding:22px 24px; text-align:center;
  font-size:.82rem; color:rgba(255,255,255,.45);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1024px){
  .service-grid, .service-grid--six{ grid-template-columns:repeat(3, 1fr); }
  .about-grid, .contact-grid{ grid-template-columns:1fr; gap:40px; }
  .about-media img{ min-height:280px; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:820px){
  .main-nav{
    position:fixed; inset:64px 0 0 0; background:var(--surface);
    transform:translateX(100%); transition:transform .25s ease; z-index:99;
    padding:32px 24px; border-top:1px solid var(--border);
  }
  .main-nav.is-open{ transform:translateX(0); }
  .main-nav ul{ flex-direction:column; gap:0; }
  .main-nav a{ display:block; padding:16px 0; border-bottom:1px solid var(--border); font-size:1.05rem; }
  .nav-toggle{ display:flex; }
  .header-actions .btn-whatsapp span{ display:none; }
  .header-actions .btn-whatsapp{ padding:10px; }

  .hero{ min-height:78vh; }
  .hero-content{ padding-bottom:56px; }

  .service-grid, .service-grid--six{ grid-template-columns:repeat(2, 1fr); }
  .project-gallery{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; gap:32px; }
  .section{ padding:64px 0; }
}

@media (max-width:480px){
  .service-grid, .service-grid--six{ grid-template-columns:1fr; }
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .contact-form{ padding:24px; }
}