/* =========================================================
   NAEX · Sitio corporativo one-page
   Paleta, tipografía y layout responsive
   ========================================================= */

:root {
  --naex-dark:        #505050;
  --naex-mid:         #737271;
  --naex-accent:      #8cb43c;
  --naex-light-green: #c8e08a;
  --naex-grey:        #f4f4f2;
  --naex-very-soft:   #f0f0ee;
  --naex-border:      #d8d8d6;
  --naex-diag:        #f4f6ee;
  --naex-body:        #333;
  --naex-muted:       #888;
  --naex-white:       #ffffff;

  --ff-body: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --ff-mono: 'Consolas', 'Courier New', monospace;

  --max-w: 1200px;
  --nav-h: 68px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body {
  font-family: var(--ff-body);
  color: var(--naex-body);
  line-height: 1.6;
  font-size: 16px;
  background: var(--naex-white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--naex-dark); text-decoration: none; }
a:hover { color: var(--naex-accent); }

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

/* =========================================================
   NAV sticky superior
   ========================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--naex-border);
  z-index: 100;
  backdrop-filter: blur(8px);
}
.nav__inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav__logo img { height: 30px; }
.nav__menu { display: flex; gap: 28px; list-style: none; align-items: center; }
.nav__menu a {
  font-size: 13px; font-weight: 600; color: var(--naex-dark);
  letter-spacing: 0.3px; transition: color 0.2s;
}
.nav__menu a:hover { color: var(--naex-accent); }
.nav__cta {
  background: var(--naex-dark); color: #fff !important;
  padding: 9px 18px; border-radius: 3px; font-size: 13px !important;
  transition: background 0.2s;
}
.nav__cta:hover { background: var(--naex-accent); color: #fff !important; }

.nav__toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 32px; height: 32px; position: relative;
}
.nav__toggle span {
  position: absolute; left: 4px; right: 4px; height: 2px;
  background: var(--naex-dark); transition: transform 0.25s, opacity 0.25s;
}
.nav__toggle span:nth-child(1) { top: 10px; }
.nav__toggle span:nth-child(2) { top: 15px; }
.nav__toggle span:nth-child(3) { top: 20px; }
.nav.open .nav__toggle span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav.open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav__toggle span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 80px) 0 100px;
  background: var(--naex-white);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; top: 0; right: 0; width: 55%; height: 100%;
  background: var(--naex-dark);
  clip-path: polygon(35% 0, 100% 0, 100% 100%, 10% 100%);
  z-index: 0;
}
.hero::after {
  content: ""; position: absolute; top: 0; right: 0; width: 30%; height: 100%;
  background: var(--naex-accent); opacity: 0.6;
  clip-path: polygon(60% 0, 100% 0, 100% 80%, 25% 100%);
  z-index: 0;
}
.hero__grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center;
  position: relative; z-index: 2;
}
.hero__kicker {
  font-size: 11px; font-weight: 700; color: var(--naex-accent);
  letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 18px;
}
.hero__title {
  font-size: clamp(30px, 4.5vw, 46px); font-weight: 700; color: var(--naex-dark);
  line-height: 1.2; margin-bottom: 20px;
}
.hero__subtitle {
  font-size: 16px; color: var(--naex-mid); margin-bottom: 30px; line-height: 1.6;
}
.hero__badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.hero__badge {
  background: var(--naex-grey); border-left: 3px solid var(--naex-accent);
  padding: 7px 14px; font-size: 12px; color: var(--naex-dark); font-weight: 600;
}
.hero__ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 24px; border-radius: 3px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.3px;
  transition: all 0.2s; border: 0; cursor: pointer; text-align: center;
}
.btn--primary { background: var(--naex-dark); color: #fff !important; }
.btn--primary:hover { background: var(--naex-accent); }
.btn--ghost {
  background: transparent; color: #fff !important;
  border: 2px solid #fff; padding: 11px 22px;
}
.btn--ghost:hover { background: #fff; color: var(--naex-dark) !important; }

/* =========================================================
   SECCIONES genéricas
   ========================================================= */
section { padding: 80px 0; }
.section__kicker {
  font-size: 11px; font-weight: 700; color: var(--naex-accent);
  letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 12px;
}
.section__title {
  font-size: clamp(26px, 3.5vw, 36px); font-weight: 700; color: var(--naex-dark);
  line-height: 1.25; margin-bottom: 18px;
}
.section__lead {
  font-size: 17px; color: var(--naex-mid); line-height: 1.65; margin-bottom: 42px;
  max-width: 820px;
}

/* === Sobre nosotros + KPIs === */
.about { background: var(--naex-grey); }
.kpis {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: 20px;
}
.kpi {
  background: #fff; padding: 28px 22px; border-top: 3px solid var(--naex-accent);
}
.kpi__val {
  font-size: 44px; font-weight: 700; color: var(--naex-dark); line-height: 1;
  margin-bottom: 8px;
}
.kpi__lab {
  font-size: 10px; color: var(--naex-mid); text-transform: uppercase;
  letter-spacing: 1.5px; font-weight: 700; margin-bottom: 6px;
}
.kpi__sub { font-size: 13px; color: var(--naex-body); line-height: 1.45; }

/* === 4 líneas de servicio === */
.services__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
.service {
  background: #fff; border: 1px solid var(--naex-border);
  padding: 28px; border-left: 4px solid var(--naex-accent);
  transition: transform 0.2s, box-shadow 0.2s;
}
.service:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.service__num {
  display: inline-block; background: var(--naex-dark); color: var(--naex-light-green);
  font-weight: 700; font-size: 13px; padding: 5px 11px; border-radius: 3px;
  margin-bottom: 14px; letter-spacing: 1px;
}
.service__title {
  font-size: 19px; font-weight: 700; color: var(--naex-dark); margin-bottom: 10px;
}
.service__desc { font-size: 14px; color: var(--naex-body); line-height: 1.6; }

/* === Plataforma 4 capas === */
.platform { background: var(--naex-dark); color: #fff; }
.platform .section__kicker { color: var(--naex-light-green); }
.platform .section__title { color: #fff; }
.platform .section__lead { color: var(--naex-light-green); }
.layers {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-top: 12px;
}
.layer {
  background: rgba(255,255,255,0.05); border-bottom: 3px solid var(--naex-accent);
  padding: 24px 22px; border-top: 1px solid rgba(255,255,255,0.08);
}
.layer__tag {
  font-size: 10px; color: var(--naex-light-green); text-transform: uppercase;
  letter-spacing: 1.5px; font-weight: 700; margin-bottom: 8px;
}
.layer__title {
  font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 12px;
  line-height: 1.3;
}
.layer__sub {
  font-size: 10.5px; color: var(--naex-light-green); text-transform: uppercase;
  letter-spacing: 1px; font-weight: 700; margin-bottom: 12px;
}
.layer__desc { font-size: 13px; color: #e5e5e5; line-height: 1.55; }

/* === Cartera de Sistemas === */
.portfolio__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.port {
  background: var(--naex-grey); border-top: 3px solid var(--naex-accent);
  padding: 18px;
}
.port__num {
  font-size: 11px; font-weight: 700; color: var(--naex-mid);
  letter-spacing: 1.2px; margin-bottom: 6px;
}
.port__title {
  font-size: 14px; font-weight: 700; color: var(--naex-dark); margin-bottom: 7px;
  line-height: 1.3;
}
.port__desc { font-size: 12px; color: var(--naex-body); line-height: 1.5; }

/* === Clientes (imagen de logos) === */
.clients { background: var(--naex-grey); }
.clients__image {
  background: #fff; padding: 30px; border-top: 3px solid var(--naex-accent);
  box-shadow: 0 2px 14px rgba(0,0,0,0.04);
}
.clients__image img {
  width: 100%; height: auto; display: block; margin: 0 auto;
  max-width: 1080px;
}

/* === Alcance internacional === */
.reach__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
.reach__item {
  background: #fff; border: 1px solid var(--naex-border);
  padding: 22px; display: flex; gap: 14px; align-items: center;
}
.reach__flag {
  background: var(--naex-dark); color: var(--naex-light-green);
  padding: 10px 14px; border-radius: 3px; font-weight: 700;
  font-size: 15px; letter-spacing: 2px; min-width: 58px; text-align: center;
}
.reach__text { flex: 1; }
.reach__name {
  font-size: 16px; font-weight: 700; color: var(--naex-dark); margin-bottom: 3px;
}
.reach__role {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--naex-mid); font-weight: 700;
}
.reach__note {
  margin-top: 28px; padding: 18px 22px;
  background: var(--naex-diag); border-left: 4px solid var(--naex-accent);
  font-size: 14px; color: var(--naex-body); line-height: 1.6;
}

/* === Contacto === */
.contact { background: var(--naex-dark); color: #fff; }
.contact .section__kicker { color: var(--naex-light-green); }
.contact .section__title { color: #fff; }
.contact .section__lead { color: var(--naex-light-green); }
.contact__grid {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px;
  align-items: start;
}
.contact__form { display: grid; gap: 16px; }
.contact__form label {
  display: block; font-size: 12px; text-transform: uppercase; letter-spacing: 1.2px;
  font-weight: 700; color: var(--naex-light-green); margin-bottom: 6px;
}
.contact__form input,
.contact__form textarea {
  width: 100%; padding: 12px 14px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.2);
  color: #fff; font-family: var(--ff-body); font-size: 14px;
  border-radius: 3px; transition: border 0.2s;
}
.contact__form input:focus,
.contact__form textarea:focus {
  outline: 0; border-color: var(--naex-accent);
  background: rgba(255,255,255,0.12);
}
.contact__form textarea { min-height: 120px; resize: vertical; }
.contact__form button {
  background: var(--naex-accent); color: var(--naex-dark);
  font-weight: 700; font-size: 14px; letter-spacing: 0.5px;
  padding: 14px 28px; border: 0; cursor: pointer; border-radius: 3px;
  transition: background 0.2s; text-transform: uppercase;
  width: fit-content;
}
.contact__form button:hover { background: var(--naex-light-green); }
.contact__info { font-size: 14px; line-height: 1.8; }
.contact__info h3 {
  font-size: 13px; color: var(--naex-light-green); text-transform: uppercase;
  letter-spacing: 1.5px; font-weight: 700; margin-bottom: 10px; margin-top: 20px;
}
.contact__info h3:first-child { margin-top: 0; }
.contact__info a { color: #fff; border-bottom: 1px solid rgba(200,224,138,0.3); }
.contact__info a:hover { color: var(--naex-accent); border-color: var(--naex-accent); }
.contact__info strong { color: #fff; }

/* === Footer === */
.footer {
  background: #2d2d2d; color: #aaa; padding: 30px 0;
  font-size: 12px; text-align: center;
}
.footer strong { color: #fff; }
.footer__sep { margin: 0 10px; color: #555; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .layers { grid-template-columns: repeat(2, 1fr); }
  .portfolio__grid { grid-template-columns: repeat(3, 1fr); }
  .reach__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__grid { grid-template-columns: 1fr; }
  .hero::before, .hero::after { display: none; }
  .contact__grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  section { padding: 56px 0; }
  .hero { padding: calc(var(--nav-h) + 60px) 0 60px; }

  .nav__menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--naex-border);
    flex-direction: column; padding: 16px 24px 24px; gap: 16px;
    transform: translateY(-150%); transition: transform 0.25s;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .nav.open .nav__menu { transform: translateY(0); }
  .nav__menu a { width: 100%; padding: 6px 0; }
  .nav__cta { width: 100%; text-align: center; }
  .nav__toggle { display: block; }

  .services__grid { grid-template-columns: 1fr; }
  .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
  .reach__grid { grid-template-columns: 1fr; }
  .layers { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: 1fr 1fr; gap: 14px; }
  .kpi { padding: 20px 18px; }
  .kpi__val { font-size: 36px; }

  .clients__image { padding: 20px; }

  .hero__ctas { width: 100%; }
  .btn { flex: 1; min-width: 140px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .nav__inner { padding: 0 16px; }
  .portfolio__grid { grid-template-columns: 1fr; }
  .clients__image { padding: 14px; }
  .section__title { font-size: 24px; }
  .hero__title { font-size: 28px; }
}