body {
  font-family: Arial, sans-serif;
  font-size: 15px;
  margin: 0;
  padding: 0;
  background-color: #121212;
  color: #e0e0e0;
}
header {
  background-color: #1f1f1f;
}
.navbar {
  padding: 15px 0;
}
.navbar-brand {
  font-weight: bold;
  font-size: 1.8rem;
}
.nav-link {
  font-size: 15px;
  margin: 0 10px;
}
.nav-link.active,
.nav-link:hover {
  color: #27ae60 !important;
}
#inicio {
  background: url('../img/solar-bg.jpg') no-repeat center center/cover;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
#inicio::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1;
}
#inicio .container {
  position: relative;
  z-index: 2;
  padding: 20px;
}
#inicio h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}
#inicio p {
  font-size: 1.25rem;
}
#acerca {
  padding: 60px 0;
}
#acerca h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  text-align: center;
}
#acerca p {
  line-height: 1.8;
}
#servicios {
  background-color: #1e1e1e;
  padding: 60px 0;
}
#servicios h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  text-align: center;
}
.card {
  border: none;
  border-radius: 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.5);
}
.card .card-title {
  font-size: 1.5rem;
  margin-bottom: 15px;
}
.card .card-text {
  font-size: 0.95rem;
}
#proyectos {
  padding: 60px 0;
}
#proyectos h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  text-align: center;
}
#testimonios {
  padding: 60px 0;
}
#testimonios h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  text-align: center;
}
#contacto {
  padding: 60px 0;
}
#contacto h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  text-align: center;
}
footer {
  background-color: #1f1f1f;
  padding: 20px 0;
  font-size: 0.95rem;
}
footer p {
  margin: 0;
}
footer a {
  color: #27ae60;
  text-decoration: underline;
}
footer a:hover {
  color: #2ecc71;
}
.btn-custom {
  color: #ffffff;
  background-color: transparent;
  border: 2px solid #ffffff;
  padding: 10px 20px;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  border-radius: 5px;
}

.btn-custom:hover {
  color: #121212;
  background-color: #ffffff;
  border-color: #ffffff;
}
/* Custom styles for FAQ block */
#faq {
  background-color: #121212;
  padding: 60px 0;
}

#faq h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  text-align: center;
  color: #ffffff;
  text-transform: uppercase;
}

#faq .accordion {
  background: transparent;
  border: none;
}

#faq .accordion-item {
  background-color: #1e1e1e;
  border: none;
  border-radius: 5px;
  margin-bottom: 15px;
  overflow: hidden;
}

#faq .accordion-button {
  background-color: #2c2c2c;
  color: #e0e0e0;
  font-weight: 500;
  border: none;
  padding: 1rem;
}

#faq .accordion-button:not(.collapsed) {
  background-color: #3a3a3a;
  color: #ffffff;
}

#faq .accordion-button::after {
  filter: invert(1);
}

#faq .accordion-body {
  background-color: #1e1e1e;
  color: #cfcfcf;
  padding: 1rem;
  border-top: 1px solid #444;
}