/* === GENERAL STYLES === */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arvo, serif;
  background: url(images/aibioenergy3.jpg) no-repeat center center fixed;
  background-size: cover;
  padding-top: 80px; /* espacio bajo la navbar fija */
  overflow-x: hidden;
}

/* === NAVBAR & LOGO === */
/* KEEP NAVBAR SETUP AS IS */
.navbar-inverse {
  background: rgba(0, 0, 0, 0.5);
  border: none;
  min-height: 75px;
  padding: 5px 0 0 0;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
}

.navbar-header,
.navbar-brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding-left: 10px;
}

.logo {
  max-height: 95px;
  width: auto;
  object-fit: contain;
  transition: opacity 0.3s ease;
  padding: 19px 0 3px 0;
  margin-left: -20px;
}

.logo:hover {
  opacity: 1;
}

.navbar-brand span {
  display: inline-block;
  margin-top: 15px;
  font-size: 20px;
  color: rgba(128, 128, 128, 1);
  line-height: 1;
  margin-left: 1px;
}

.navbar-nav > li > a {
  display: flex;
  align-items: center;
  height: 70px;
  padding: 10px 8px;
  color: #fff !important;
  font-size: 17px;
  border-bottom: 3px solid transparent;
  transition: border-bottom 0.3s ease;
}

.navbar-nav > li > a:hover {
  border-bottom: 3px solid #8BC34A;
}

/* === JUMBOTRON === */
.jumbotron {
  background-color: transparent !important;
  color: #fff;
  text-align: center;
  margin: 10px;
  width: 100%;
}

/* === CONTAINER === */
.container {
  max-width: 1000px;
}

/* === ICONS SECTION === */
.bodyimage {
  height: 100px;
}

.col-md-4 {
  text-align: center;
  color: #fff;
}

.icons p {
  font-size: 15px;
}

/* === CONTACT BUTTON === */
.contact {
  text-align: center;
  margin: 30px 0 100px;
}

.btn {
  background-color: rgba(0, 0, 0, 0.4);
  border: none;
  border-radius: 10px;
  color: #fff;
  font-size: 18px;
  padding: 10px 70px;
  letter-spacing: 1.3px;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: rgba(23, 2, 1, 0.1);
  color: #fff;
}

/* === FOOTER === */
.custom-footer {
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  box-sizing: border-box;
  width: 100%;
  padding: 20px 20px;
}

/* Footer container */
.footer-content {
  display: flex;
  justify-content: center; /* centra todas las columnas horizontalmente */
  align-items: flex-start;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  flex-wrap: nowrap;       /* mantener columnas en la misma fila */
  gap: 250px;               /* espacio entre columnas */
}

.footer-column {
  flex: 0 0 auto; /* ancho según contenido */
}

.footer-column h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: #8BC34A;
}

.footer-column ul {
  list-style: none;
  padding: 0;
}

.footer-column a {
  color: #fff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-column a:hover {
  color: #8BC34A;
}

.footer-column.connect {
  text-align: center;
}

.footer-column.connect ul {
  display: inline-flex;
  gap: 15px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-column.connect ul li a {
  color: white;
  font-size: 24px;
  transition: color 0.3s;
}

.footer-column.connect ul li a:hover {
  color: #8BC34A;
}

.footer-text {
  font-size: 1.4rem !important; /* mismo tamaño que los enlaces del footer */
  color: #ffffff;    /* igual que el resto del texto */
  line-height: 1.4;  /* opcional para que se vea consistente */
}

.footer-text a {
  color: #ffffff;          /* color inicial */
  text-decoration: none;    /* opcional, quita subrayado */
}

.footer-text a:hover {
  color: #8BC34A !important;
}

.footer-links a {
  text-decoration: none;
  color: #ffffff;
  font-size: 12px;
  opacity: 0.4;
  margin-left: 10px;
  position: relative;
}

/* Añade un punto antes de cada enlace excepto el primero */
.footer-links a::before {
/*  content: "·";   Aquí está el punto */
  content: "|";  /* Aquí está el punto */
  margin-right: 5px;
}

.footer-links a:not(:first-child)::after {
/*  content: "·";   Aquí está el punto */	
  content: "|";   /* Separador después */
  margin-left: 5px;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: 50px;
  margin-bottom: 1px;	
  padding-top: 20px;
  padding-bottom: 0px;
  font-size: 2rem;
  color: #8BC34A;
}

.footer-logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 30px;
}

.footer-logo img {
  height: 70px;
  margin-right: 10px;
}

.footer-logo span {
  font-size: 2rem;
  font-weight: bold;
  color: rgba(128, 128, 128, 1);
}

/* === RESPONSIVE ADJUSTMENTS === */
@media (max-width: 992px) {
  .hero-content h1 { font-size: 2.5rem; }
  .hero-content p { font-size: 1.1rem; }
}

@media (max-width: 768px) {

  .logo { max-height: 90px; padding-top: 11px; }

  .jumbotron { margin: 0; padding: 20px 10px; }

  .navbar-nav > li > a { height: auto; padding: 10px 15px; }

  .navbar-toggle {
    margin: 5px 0 1px auto;
    border: none;
    padding: 10px;
    width: 50px;
    height: 50px;
    position: relative;
    overflow: hidden;
    border-radius: 50%;
  }

  .navbar-toggle .icon-bar {
    height: 3px;
    width: 30px;
    margin: 5px 0;
    background-color: #fff;
  }

  .navbar-toggle::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(57, 255, 20, 1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: ripple 1.5s 0.5s infinite;
  }

  .hero-container { width: 100%; }
  .hero-content h1 { font-size: 2rem; }
  .photo-card { max-width: 90%; }

  .footer-logo-container,
  .footer-content { flex-direction: column; align-items: center; text-align: center; }
  .footer-content { gap: 30px; }
  .footer-column { min-width: auto; }

  .single-photo { flex-direction: column; text-align: center; }
  .single-photo img { margin: 0 0 20px 0; width: 100%; max-width: 350px; }
}

/* === ANIMATIONS === */
@keyframes ripple {
  0% { width: 0; height: 0; opacity: 0.6; }
  50% { width: 60px; height: 60px; opacity: 0.3; }
  100% { width: 0; height: 0; opacity: 0; }
}