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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

.App {
  min-height: 100vh;
  padding: 20px;
}

.App-header {
  text-align: center;
  color: white;
  padding: 40px 20px;
}

.App-header h1 {
  font-size: 2.5em;
  margin-bottom: 10px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.App-header p {
  font-size: 1.2em;
  opacity: 0.9;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.card {
  background: white;
  border-radius: 15px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.card h2 {
  color: #667eea;
  margin-bottom: 20px;
  font-size: 1.8em;
}

/* File Upload */
.upload-section {
  margin: 20px 0;
}

.file-label {
  display: inline-block;
  padding: 12px 30px;
  background: #667eea;
  color: white;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 600;
}

.file-label:hover {
  background: #764ba2;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

input[type="file"] {
  display: none;
}

/* Metrics */
.metrics {
  margin-top: 30px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 10px;
}

.metrics h3 {
  color: #333;
  margin-bottom: 15px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.metric {
  background: white;
  padding: 15px;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.metric-label {
  font-size: 0.9em;
  color: #666;
  margin-bottom: 5px;
}

.metric-value {
  font-size: 1.5em;
  font-weight: bold;
  color: #667eea;
}

.model-info {
  margin-top: 20px;
  padding: 15px;
  background: #e8f5e9;
  border-left: 4px solid #4caf50;
  border-radius: 5px;
}

.model-info p {
  margin: 5px 0;
  color: #2e7d32;
}

/* Form */
.prediction-form {
  margin-top: 20px;
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: #333;
  font-weight: 600;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1em;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #667eea;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
}

.predict-btn {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 20px;
}

.predict-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.predict-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Results */
.results {
  margin-top: 30px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 10px;
}

.results h3 {
  color: #667eea;
  margin-bottom: 20px;
}

.result-section {
  margin-bottom: 30px;
}

.result-section h4 {
  color: #333;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e0e0e0;
}

.predictions-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.prediction-item {
  display: grid;
  grid-template-columns: 40px 1fr 2fr 80px;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.prediction-rank {
  font-weight: bold;
  color: #667eea;
  font-size: 1.1em;
}

.prediction-name {
  font-size: 0.95em;
  color: #333;
}

.prediction-bar {
  height: 20px;
  background: #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
}

.prediction-fill {
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  transition: width 0.5s ease;
}

.prediction-score {
  text-align: right;
  font-weight: 600;
  color: #667eea;
}

.error-message {
  margin-top: 20px;
  padding: 15px;
  background: #ffebee;
  border-left: 4px solid #f44336;
  border-radius: 5px;
  color: #c62828;
}

/* Responsive */
@media (max-width: 768px) {
  .App-header h1 {
    font-size: 1.8em;
  }
  
  .prediction-item {
    grid-template-columns: 30px 1fr;
    gap: 8px;
  }
  
  .prediction-bar,
  .prediction-score {
    grid-column: 2;
  }
}