/* =====================================================
   UNERA S.A.S. — Hoja de estilos principal
   Paleta extraída directamente del logo oficial:
   navy institucional + dorado metálico + crema
   ===================================================== */

:root {
  /* --- Paleta de marca (muestreada del logo) --- */
  --navy-950: #050810;
  --navy-900: #0a1420;
  --navy-800: #14283c;
  --navy-700: #1e3654;

  --gold-300: #e8d6a8;
  --gold-400: #d9bb6f;
  --gold-500: #c9a227;
  --gold-600: #a9821f;
  --gold-700: #8a6a2f;

  --crema-50: #f8f6f1;
  --crema-100: #f1ede3;

  --ink-900: #12161c;
  --blanco: #ffffff;

  /* --- Tipografía --- */
  --fuente-display: 'Cinzel', serif;
  --fuente-texto: 'Barlow', system-ui, sans-serif;

  /* --- Layout --- */
  --contenedor-ancho: 1180px;
  --header-alto: 84px;

  /* --- Sombras / efectos --- */
  --sombra-dorada: 0 8px 30px rgba(201, 162, 39, 0.35);
  --transicion-suave: 0.4s cubic-bezier(.25,.8,.25,1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--fuente-texto);
  color: var(--ink-900);
  background: var(--crema-50);
  overflow-x: hidden;
}

.contenedor {
  width: min(100% - 3rem, var(--contenedor-ancho));
  margin-inline: auto;
}

h1, h2, h3 {
  font-family: var(--fuente-display);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* =====================================================
   BOTONES
   ===================================================== */
.btn {
  display: inline-block;
  padding: 0.9rem 2.1rem;
  border-radius: 2px;
  font-family: var(--fuente-texto);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.82rem;
  transition: transform var(--transicion-suave), box-shadow var(--transicion-suave);
}

.btn--gold {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
  color: var(--navy-950);
  box-shadow: var(--sombra-dorada);
}

.btn--gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(201, 162, 39, 0.5);
}

/* =====================================================
   HEADER / NAV
   ===================================================== */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-alto);
  z-index: 100;
  display: flex;
  align-items: center;
  background: rgba(5, 8, 16, 0.35);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background var(--transicion-suave), box-shadow var(--transicion-suave);
}

.header.header--solido {
  background: rgba(6, 10, 20, 0.92);
  box-shadow: 0 6px 24px rgba(0,0,0,0.25);
}

.header__contenedor {
  width: min(100% - 2.5rem, var(--contenedor-ancho));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.marca {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.marca__logo {
  height: 46px;
  width: auto;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4));
}

.marca__texto {
  display: flex;
  flex-direction: column;
  line-height: 1;
  color: var(--crema-50);
  font-family: var(--fuente-display);
}

.marca__texto strong {
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  background: linear-gradient(135deg, var(--gold-300), var(--gold-600));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.marca__texto small {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--crema-100);
  margin-top: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav__lista {
  display: flex;
  gap: 1.9rem;
}

.nav__link {
  position: relative;
  color: var(--crema-50);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-bottom: 6px;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 2px;
  background: var(--gold-500);
  transition: width var(--transicion-suave);
}

.nav__link:hover::after,
.nav__link.activo::after {
  width: 100%;
}

.nav__link.activo {
  color: var(--gold-400);
}

.hamburguesa {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.hamburguesa span {
  width: 26px;
  height: 2px;
  background: var(--crema-50);
  transition: var(--transicion-suave);
}

/* =====================================================
   HERO
   ===================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 0%, var(--navy-800) 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  padding-top: var(--header-alto);
}

.hero__particulas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero__brillo {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 1;
}

.hero__brillo--1 {
  width: 480px; height: 480px;
  background: var(--gold-600);
  top: -120px; left: -120px;
  animation: derivar 14s ease-in-out infinite alternate;
}

.hero__brillo--2 {
  width: 420px; height: 420px;
  background: var(--navy-700);
  bottom: -140px; right: -100px;
  animation: derivar 18s ease-in-out infinite alternate-reverse;
}

@keyframes derivar {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(60px,40px) scale(1.15); }
}

.hero__contenido {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--crema-50);
  padding: 2rem 1.5rem 4rem;
  max-width: 780px;
}

.hero__frase {
  font-style: italic;
  color: var(--gold-300);
  font-size: 1rem;
  margin-bottom: 1.6rem;
  opacity: 0.9;
}

.hero__logo-flotante {
  width: clamp(160px, 22vw, 240px);
  margin: 0 auto 1.6rem;
}

.hero__logo-flotante img {
  width: 100%;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.55));
}

/* ---------- Redes sociales (hero) ---------- */
.hero__redes {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  margin-bottom: 2.4rem;
}

.red-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1.5px solid var(--gold-500);
  color: var(--gold-400);
  background: rgba(201, 162, 39, 0.08);
  transition: transform var(--transicion-suave), background var(--transicion-suave),
              color var(--transicion-suave), box-shadow var(--transicion-suave);
}

.red-social svg {
  width: 20px;
  height: 20px;
}

.red-social:hover,
.red-social:focus-visible {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
  color: var(--navy-950);
  transform: translateY(-4px);
  box-shadow: var(--sombra-dorada);
}

.hero__titulo {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  letter-spacing: 0.08em;
  font-weight: 600;
  background: linear-gradient(135deg, var(--gold-300) 10%, var(--gold-600) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.6rem;
}

.hero__titulo span {
  color: var(--crema-50);
  -webkit-text-fill-color: var(--crema-50);
  font-size: 0.5em;
  display: block;
  letter-spacing: 0.5em;
  margin-top: 0.3rem;
}

.hero__subtitulo {
  font-size: 1rem;
  letter-spacing: 0.03em;
  color: var(--crema-100);
  margin-bottom: 0.4rem;
}

.hero__tagline {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-400);
  margin-bottom: 3rem;
}

.hero__scroll {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--crema-100);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero__scroll span {
  width: 22px;
  height: 34px;
  border: 2px solid var(--gold-400);
  border-radius: 20px;
  position: relative;
}

.hero__scroll span::before {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  background: var(--gold-400);
  border-radius: 2px;
  animation: rebotar-punto 1.8s ease-in-out infinite;
}

@keyframes rebotar-punto {
  0%, 100% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(10px); opacity: 0.3; }
}

/* =====================================================
   FILA DE ICONOS (nav visual flotante)
   ===================================================== */
.iconos-nav {
  position: relative;
  background: var(--crema-50);
  padding: 4.5rem 0 5rem;
}

.iconos-nav__eyebrow {
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.75rem;
  color: var(--gold-600);
  font-weight: 600;
  margin-bottom: 2.6rem;
}

.iconos-nav__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
}

.icono-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  color: var(--navy-900);
}

.icono-item__badge {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 35% 30%, var(--navy-700), var(--navy-950));
  box-shadow: 0 10px 26px rgba(10, 20, 32, 0.28);
  transition: box-shadow var(--transicion-suave), transform var(--transicion-suave);
}

.icono-item__badge img {
  width: 58%;
}

.icono-item:hover .icono-item__badge {
  box-shadow: 0 16px 34px rgba(201, 162, 39, 0.45);
  transform: translateY(-6px) scale(1.06);
}

.icono-item__label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

/* =====================================================
   ANIMACIÓN FLOTANTE (reutilizable: logo + iconos)
   ===================================================== */
.flotar {
  animation: flotar 5s ease-in-out infinite;
  animation-delay: var(--flotar-delay, 0s);
}

@keyframes flotar {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-14px); }
}

/* =====================================================
   SECCIONES DE SERVICIO
   ===================================================== */
.seccion {
  position: relative;
  padding: 6.5rem 0;
  overflow: hidden;
}

.seccion--clara {
  background: var(--crema-50);
  color: var(--ink-900);
}

.seccion--oscura {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-950));
  color: var(--crema-50);
}

.seccion--oscura::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(201,162,39,0.18) 1px, transparent 1.4px);
  background-size: 28px 28px;
  opacity: 0.35;
  pointer-events: none;
}

.seccion__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
  align-items: center;
}

.seccion__icono {
  display: inline-flex;
  width: 78px;
  height: 78px;
  margin-bottom: 1.4rem;
}

.seccion__icono img { width: 100%; }

.seccion__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gold-600);
  margin-bottom: 0.7rem;
}

.seccion--oscura .seccion__eyebrow {
  color: var(--gold-400);
}

.seccion__titulo {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  letter-spacing: 0.03em;
  margin-bottom: 1rem;
}

.seccion__lead {
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 38ch;
  opacity: 0.85;
}

.lista-servicios {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.lista-servicios > li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 1.02rem;
  font-weight: 500;
  line-height: 1.5;
}

.lista-servicios > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 9px;
  height: 9px;
  background: var(--gold-500);
  border-radius: 2px;
  transform: rotate(45deg);
}

.lista-servicios--sub {
  margin-top: 0.7rem;
  padding-left: 0.2rem;
  gap: 0.55rem;
}

.lista-servicios--sub > li {
  font-size: 0.92rem;
  font-weight: 400;
  opacity: 0.85;
}

.lista-servicios--sub > li::before {
  width: 6px;
  height: 6px;
  background: transparent;
  border: 1.5px solid var(--gold-500);
}

/* =====================================================
   FOOTER / CONTACTO
   ===================================================== */
.footer {
  background: var(--navy-950);
  color: var(--crema-100);
  padding: 5rem 0 2.5rem;
  text-align: center;
}

.footer__contenido {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer__logo {
  width: 90px;
  margin-bottom: 1.6rem;
  filter: drop-shadow(0 10px 24px rgba(0,0,0,0.5));
}

.footer__lema {
  font-family: var(--fuente-display);
  text-transform: uppercase;
  letter-spacing: 0.35em;
  color: var(--gold-400);
  font-size: 0.95rem;
  margin-bottom: 2.2rem;
}

.footer__contacto-texto {
  font-size: 1.2rem;
  color: var(--crema-50);
  margin-bottom: 1.6rem;
}

.footer__copy {
  margin-top: 3rem;
  font-size: 0.78rem;
  opacity: 0.55;
}

/* =====================================================
   ANIMACIONES DE ENTRADA AL HACER SCROLL
   ===================================================== */
[data-animar] {
  opacity: 0;
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(.25,.8,.25,1);
  transition-delay: var(--delay, 0s);
}

[data-animar="fade-up"]    { transform: translateY(36px); }
[data-animar="fade-down"]  { transform: translateY(-24px); }
[data-animar="fade-left"]  { transform: translateX(48px); }
[data-animar="fade-right"] { transform: translateX(-48px); }
[data-animar="zoom"]       { transform: scale(0.85); }

[data-animar].en-vista {
  opacity: 1;
  transform: translate(0,0) scale(1);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 980px) {
  .nav__lista { gap: 1.2rem; }
  .nav__link { font-size: 0.74rem; }
  .seccion__grid { gap: 2.2rem; }
}

@media (max-width: 860px) {
  .nav { 
    position: fixed;
    inset: var(--header-alto) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--navy-950);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    padding: 1.5rem 1.5rem 2rem;
    max-height: calc(100vh - var(--header-alto));
    overflow-y: auto;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transicion-suave), opacity var(--transicion-suave);
  }

  .nav.nav--abierto {
    transform: translateY(0);
    opacity: 1;
  }

  .nav__lista {
    flex-direction: column;
    gap: 0;
  }

  .nav__lista li { border-bottom: 1px solid rgba(255,255,255,0.08); }

  .nav__link {
    display: block;
    padding: 1rem 0;
  }

  .nav__cta { margin-top: 1.2rem; text-align: center; }

  .hamburguesa { display: flex; }

  .iconos-nav__grid {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 2.5rem;
  }

  .seccion__grid,
  .seccion__grid--reversa {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .seccion__grid--reversa .seccion__lista-wrap,
  .seccion__grid--reversa .seccion__intro {
    order: initial;
  }

  .seccion__lead { max-width: none; }
}

@media (max-width: 560px) {
  .iconos-nav__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .icono-item__badge { width: 74px; height: 74px; }

  .hero__titulo span { letter-spacing: 0.35em; }

  .seccion { padding: 4.5rem 0; }
}