:root {
  --primary-color: #4a90e2;
  --secondary-color: #f5a623;
  --background-color: #f7f9fc;
  --text-color: #333333;
  --border-color: #e0e0e0;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 40px auto;
  background-color: #ffffff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
  color: var(--primary-color);
  font-size: 2.5rem;
  margin-bottom: 30px;
}

.form-container {
  display: flex;
  gap: 40px;
}

.image-preview {
  flex: 1;
  min-height: 300px;
  max-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--background-color);
  border-radius: 8px;
  padding: 20px;
}

#preview-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  max-height: 500px;
  overflow-y: auto;
}

#preview-container img {
  max-width: 100%;
  max-height: 300px;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#preview-text {
  color: #888;
  font-style: italic;
}

.form-fields {
  flex: 1;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--primary-color);
}

input[type="text"],
select {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 16px;
  transition: border-color 0.3s ease;
}

input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.file-input-wrapper {
  position: relative;
  display: inline-block;
  width: 100%;
}

.btn-file-input {
  background-color: var(--primary-color);
  color: #fff;
  padding: 10px 15px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s ease;
}

.btn-file-input:hover {
  background-color: darken(var(--primary-color), 10%);
}

.file-name {
  margin-left: 10px;
  color: #888;
}

input[type="range"] {
  width: 100%;
  margin-top: 10px;
}

button[type="submit"] {
  background-color: var(--secondary-color);
  color: #fff;
  padding: 12px 24px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 18px;
  transition: background-color 0.3s ease;
  width: 100%;
  margin-top: 20px;
}

button[type="submit"]:hover {
  background-color: darken(var(--secondary-color), 10%);
}

.results-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
  margin-top: 40px;
}

.thumbnail h2,
.actions h2 {
  color: var(--primary-color);
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.image-gallery img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.actions {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.action-button {
  background-color: var(--primary-color);
  color: #fff;
  padding: 12px 24px;
  border: none;
  border-radius: 4px;
  text-decoration: none;
  font-size: 16px;
  transition: background-color 0.3s ease;
  text-align: center;
}

.action-button:hover {
  background-color: darken(var(--primary-color), 10%);
}

.upload-more {
  text-align: center;
  margin-top: 40px;
}

@media (max-width: 768px) {
  .form-container {
    flex-direction: column;
  }

  .container {
    padding: 20px;
  }

  .image-gallery {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}