:root {
  --primary: #ff7f00;
  --primary-light: #ff9933;
  --primary-dark: #e67300;
  --secondary: #3a3a3a;
  --light: #f8f9fa;
  --dark: #212529;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f0f0f0;
  color: var(--dark);
  min-height: 100vh;
}

.navbar {
  background-color: var(--primary);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-weight: bold;
  color: white !important;
}

.main-container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  border: none;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin-bottom: 2rem;
}

.card-header {
  background-color: var(--primary);
  color: white;
  border-bottom: none;
  padding: 1.25rem;
}

.card-body {
  padding: 2rem;
}

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.dropzone {
  border: 2px dashed var(--primary);
  border-radius: 5px;
  background: white;
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.dropzone:hover {
  border-color: var(--primary-dark);
  background-color: #fff8f0;
}

.dropzone .dz-message {
  font-size: 1.5rem;
  color: #999;
  margin: 2em 0;
}


.dropzone .dz-preview .dz-image {
  border-radius: 8px;
  overflow: hidden;
}

.dropzone .dz-preview .dz-details {
  padding: 10px;
}

.dropzone .dz-preview .dz-progress {
  height: 15px;
  border-radius: 10px;
  background: #f0f0f0;
  margin-top: 10px;
}

.dropzone .dz-preview .dz-progress .dz-upload {
  background: var(--primary);
  border-radius: 10px;
}

.form-control {
  border-radius: 5px;
  border: 1px solid #ddd;
  padding: 10px 15px;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(255, 127, 0, 0.25);
}

.form-label {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.alert {
  border-radius: 5px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.alert-success {
  background-color: #d4edda;
  border-color: #c3e6cb;
  color: #155724;
}

.alert-danger {
  background-color: #f8d7da;
  border-color: #f5c6cb;
  color: #721c24;
}

.file-info {
  margin-top: 20px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 5px;
}

.file-info h5 {
  color: var(--primary);
  margin-bottom: 15px;
}

.file-info ul {
  list-style-type: none;
  padding-left: 0;
}

.file-info li {
  padding: 5px 0;
  border-bottom: 1px solid #eee;
}

@media (max-width: 768px) {
  .card-body {
    padding: 1.5rem;
  }
  
  .dropzone .dz-message {
    font-size: 1.2rem;
  }
}