.references_logos {
  align-items: center;
  display: flex;
  justify-content: center;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s, color 0.3s;
}

main {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--col-asso);
  color: var(--col-main);
  line-height: 1.6;
}

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 1px;
}

nav a {
  text-decoration: none;
  color: var(m);
  margin-left: 2rem;
  font-weight: 500;
}

nav a:hover {
  color: var(--col-gray);
}

.theme-toggle {
  background: none;
  border: 2px solid var(--col-main);
  color: var(--col-main);
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-weight: 600;
  border-radius: 4px;
  margin-left: 2rem;
}

.theme-toggle:hover {
  background-color: var(--col-main);
  color: var(--col-asso);
}

.hero {
  padding: 8rem 5%;
  max-width: 900px;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 2rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
  text-align: justify;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  margin-right: 1rem;
}

.btn-primary {
  background-color: var(--col-off);
  color: var(--col-generic-special-span);
}

.btn-secondary {
  border: 2px solid var(--col-main);
  color: var(--col-main);
}

.services {
  border-radius: 1vh;
  padding: 5rem 5%;
  background-color: var(--col-generic-special-highlight);
}

.section-title {
  font-size: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--col-elevate);
  color: var(--col-main);
  padding: 2.5rem;
  border-radius: 1vh;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--col-main);
  font-weight: 600;
}

.portfolio {
  padding: 5rem 5%;
}

.project-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 0;
  border-bottom: 1px solid var(--col-main);
  cursor: pointer;
}

.project-item:hover h3 {
  transform: translateX(10px);
  color: var(--col-gray);
}

.project-item h3 {
  font-size: 1.75rem;
  transition: transform 0.3s;
}

footer {
  padding: 5rem 5%;
  text-align: center;
  border-top: 1px solid var(--col-elevate);
}



/*  */
.accordion {
  max-width: 800px;
  margin: 2rem auto;
  font-family: sans-serif;
}

.accordion-item {
  background-color: #ffffff;
  margin-bottom: 1rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.03);
  border: 1px solid #e6ece8;
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  background: none;
  border: none;
  color: #2c2520;
  text-align: left;
  padding: 2rem;
  font-size: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.accordion-header:hover {
  color: #3d5a45;
}

.accordion-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

/* Target state when item is active */
.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  padding: 0 2rem;
  color: #555;
  text-align: justify;
}

.accordion-item.active .accordion-content {
  padding: 0 2rem 2rem 2rem;
}

@media (max-width: 768px) {
  header{
    flex-direction: row;
  }
}