body {
  font-family: 'Poppins', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  background: linear-gradient(135deg, #ff9966, #ff5e62);
}

.card {
  background: #fff;
  padding: 25px 30px;
  border-radius: 15px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  text-align: center;
  max-width: 300px;
  width: 90%;
}

h1 {
  font-size: 1.4rem;
  color: #333;
  margin-bottom: 15px;
}

.upload-btn {
  display: inline-block;
  background: #ff6600;
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease;
}

.upload-btn:hover {
  background: #e05500;
}

input[type="file"] {
  display: none; /* oculta el botón original */
}

#preview {
  width: 200px;
  height: 200px;
  border-radius: 12px;
  border: 2px dashed #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 15px auto 0;
  background: #f8f8f8;
  color: #777;
  font-size: 14px;
  transition: transform 0.3s ease;
}

#preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: cover;
}

#preview:hover {
  transform: scale(1.03);
}

#clearBtn {
  margin-top: 10px;
  background: #ff4444;
  color: #fff;
  border: none;
  padding: 8px 15px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s ease;
}

#clearBtn:hover {
  background: #cc0000;
}