@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@300;400;500;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
 
}


.seccion4 {
  width: 100%;
  padding: 100px 20px;
  background: linear-gradient(135deg, #eee8e8 0%, #e8eef5 100%);
   font-family: "Ubuntu", sans-serif;
}

.form-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-text {
  font-size: 1rem;
  color: #444;
  margin-bottom: 25px;
  line-height: 1.6;
}

form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: linear-gradient(to bottom, rgba(47, 47, 47, 0.05) 0%, #ffffff 100%);
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

h2 {
  font-size: 2rem;
  margin-bottom: 10px;
  color: #2c3e50;
}

.form-row {
  display: flex;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  flex: 1;
}

label {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: #3a3a3a;
}

input,
textarea {
  padding: 12px 15px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 1rem;
  transition: all 0.3s ease;
}

input:focus,
textarea:focus {
  border-color: #007ffb;
  outline: none;
  box-shadow: 0 0 10px rgba(0, 127, 251, 0.2);
}

/* BOTÓN */
.btn-submit {
  align-self: flex-start;
  background: #373737;
  color: white;
  padding: 14px 50px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.btn-submit::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: linear-gradient(to right, #d12ae1 0% 20%, #007ffb 20% 40%, #fe8a00 40% 60%, #d1b699 60% 80%, #019f6e 80% 100%);
  transition: transform 0.5s ease;
}

.btn-submit::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: linear-gradient(90deg, #d12ae1, #007ffb, #fe8a00, #d1b699, #019f6e);
  opacity: 0.5;
  filter: blur(10px);
  z-index: -1;
  animation: gradienteCta 3s linear infinite;
  background-size: 300% 100%;
}

.btn-submit:hover {
  background: #131313;
  transform: translateY(-2px);
}

.image-container {
  position: relative;
  width: 100%;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
}

.image-container img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  object-fit: cover;
  transition: transform 0.5s ease;
}

.image-container:hover img {
  transform: scale(1.05);
}

.image-container .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #d12ae1, #007ffb, #fe8a00, #d1b699, #019f6e);
  opacity: 0;
  border-radius: 20px;
  mix-blend-mode: overlay;
  transition: opacity 0.3s ease;
}

.image-container:hover .overlay {
  opacity: 0.25;
}

@keyframes gradienteCta {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

@media (max-width: 950px) {
  .form-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .image-container img {
    height: 350px;
    object-fit: cover;
  }

  form {
    padding: 30px;
  }
}


.hidden {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s ease, transform 1s ease;
}

.visible {
  opacity: 1;
  transform: translateY(0);
}



.image-container.hidden {
  transform: translateX(30px);
}
/* ===== RESPONSIVE TABLET (768px - 950px) ===== */
@media (max-width: 950px) {
  .seccion4 {
    padding: 80px 20px;
  }

  .form-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  form {
    padding: 30px;
  }

  h2 {
    font-size: 1.75rem;
  }

  .intro-text {
    font-size: 0.95rem;
  }

  .form-row {
    flex-direction: column;
    gap: 15px;
  }

  .image-container img {
    height: 350px;
    object-fit: cover;
  }

  .btn-submit {
    width: 100%;
    padding: 14px 30px;
    text-align: center;
  }
}

/* ===== RESPONSIVE MÓVIL (max-width: 768px) ===== */
@media (max-width: 768px) {
  .seccion4 {
    padding: 60px 15px;
  }

  .form-container {
    gap: 30px;
  }

  form {
    padding: 25px 20px;
    border-radius: 15px;
  }

  h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
  }

  .intro-text {
    font-size: 0.9rem;
    margin-bottom: 20px;
  }

  .form-row {
    flex-direction: column;
    gap: 15px;
  }

  label {
    font-size: 0.95rem;
  }

  input,
  textarea {
    padding: 10px 12px;
    font-size: 0.95rem;
  }

  textarea {
    rows: 5;
  }

  .btn-submit {
    width: 100%;
    padding: 12px 30px;
    font-size: 1rem;
  }

  .image-container img {
    height: 280px;
  }
}

/* ===== RESPONSIVE MÓVIL PEQUEÑO (max-width: 480px) ===== */
@media (max-width: 480px) {
  .seccion4 {
    padding: 50px 12px;
  }

  form {
    padding: 20px 15px;
    gap: 15px;
  }

  h2 {
    font-size: 1.3rem;
  }

  .intro-text {
    font-size: 0.85rem;
    line-height: 1.5;
  }

  label {
    font-size: 0.9rem;
    margin-bottom: 6px;
  }

  input,
  textarea {
    padding: 10px;
    font-size: 0.9rem;
    border-radius: 6px;
  }

  .btn-submit {
    padding: 11px 25px;
    font-size: 0.95rem;
    border-radius: 6px;
  }

  .image-container {
    border-radius: 15px;
  }

  .image-container img {
    height: 220px;
    border-radius: 15px;
  }

  .image-container .overlay {
    border-radius: 15px;
  }
}