* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #f1f2f3;
}

.container {
  box-sizing: border-box;
  width: 100%;
  max-width: 1560px;
  min-width: 1240px;
  margin: 25px auto;
  position: relative;
  color: #333;
}

.container *{
  box-sizing: border-box;
}

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-bottom: 25px;
  width: 100%;
}

header h1 {
  font-size: 2.2rem;
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
}

header p{
  opacity: 0.9;
  font-size: 1.1rem;
}


.upload-area {
  border: 2px dashed #ccc;
  border-radius: 8px;
  padding: 20px;
  background: #fff;
  text-align: center;
  margin-bottom: 25px;
  cursor: pointer;
  transition: all 0.3s;
}

.upload-area:hover {
  border-color: #3498db;
  background-color: #f8f9fa;
}

.upload-area.active {
  border-color: #3498db;
  background-color: #e8f4fd;
}

.upload-icon {
  font-size: 48px;
  margin-bottom: 15px;
}

.upload-text {
  font-size: 16px;
  color: #8a8a8a;
  margin-bottom: 20px;
}
.upload-button{
  background: #3498db;
  color: #fff;
}

.file-input {
  display: none;
}


.metadata-form {
  display: none;
  padding: 20px;
  border-radius: 8px;
  background: #fff;
  margin-bottom: 25px;
}

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

.form-row {
  display: flex;
  gap: 20px;
  margin-bottom: 15px;
}

.form-col {
  flex: 1;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

input[type="text"] {
  width: 100%;
  padding: 10px 15px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

input[type="text"]:focus {
  border-color: #3498db;
  outline: none;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.button-group {
  display: flex;
  gap: 25px;
  justify-content: center;
}

button {
  padding: 12px 52px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background-color: #3498db;
  color: white;
}

.btn-primary:hover {
  background-color: #2980b9;
}

.btn-secondary {
  background-color: #95a5a6;
  color: white;
}

.btn-secondary:hover {
  background-color: #7f8c8d;
}

.btn-reset {
  background-color: #e74c3c;
  color: white;
}

.btn-reset:hover {
  background-color: #c0392b;
}

.info-section {
  margin-bottom: 25px;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
}

.info-section h2 {
  font-size: 22px;
  margin-bottom: 20px;
  color: #2c3e50;
}

.info-section h3 {
  margin: 20px 0 15px;
  color: #34495e;
}

.info-section p,
.info-section li {
  margin-top: 10px;
  line-height: 1.6;
}

.info-section ul {
  padding-left: 25px;
  margin-bottom: 25px;
}

.notice {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 12px 24px;
  border-radius: 4px;
  font-size: 16px;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 1000;
  pointer-events: none;
}

.notice.show {
  opacity: 1;
}

.original-meta {
  background-color: #f8f9fa;
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
  border-left: 4px solid #3498db;
}

.original-meta h3 {
  margin-bottom: 10px;
  color: #2c3e50;
}

.original-meta pre {
  white-space: pre-wrap;
  font-family: monospace;
  font-size: 14px;
}