.contact-section {
  background-color: #f8f9fa;
}

.contact-section .section-title {
  font-weight: 700;
  font-size: 2.5rem;
  color: #0d6efd;
}

.contact-section .lead {
  color: #555;
  font-size: 1.1rem;
}

.contact-form {
  background-color: #fff;
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.contact-form .input-group {
  border-radius: 10px;
  overflow: hidden;
}

.contact-form .input-group input,
.contact-form .input-group textarea {
  border: 1px solid #ced4da;
  border-left: none;
  border-radius: 0;
  padding: 0.8rem 1rem;
  transition: all 0.3s ease;
}

.contact-form .input-group-text {
  border-radius: 0;
  border: none;
  font-size: 1.2rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #0d6efd;
  box-shadow: 0 0 10px rgba(13,110,253,0.2);
}

.input-error {
  border-color: red !important;
}

.error-message {
  color: red;
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.btn-submit {
  padding: 0.75rem 2rem;
  font-size: 1.1rem;
  border-radius: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-submit:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.btn-submit:active {
  transform: scale(0.97);
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

footer {
  background-color: #222;
  color: #fff;
}

footer .contact-icon {
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

footer .contact-icon:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

@media (max-width: 992px) {
  .contact-form {
    padding: 1.5rem;
  }
}

@media (max-width: 576px) {
  .contact-section .section-title { font-size: 2rem; }
  .contact-section .lead { font-size: 1rem; }
  .contact-form input,
  .contact-form textarea { padding: 0.7rem 0.8rem; }
  .btn-submit { width: 100%; padding: 0.75rem; font-size: 1rem; }
}