/* App Stylesheet */
:root {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: #333;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

/* Form Styles */
.form-control,
.form-select {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Button Styles */
.btn {
  border-radius: 6px;
  padding: 8px 16px;
  font-weight: 500;
  transition: all 0.2s ease;
  border: none;
}

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

.btn-primary:hover {
  background: var(--secondary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:focus {
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.25);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

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

/* Card Styles */
.card {
  border: none;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
}

.card-header {
  background: var(--primary-gradient);
  color: white;
  border: none;
  border-radius: 10px 10px 0 0;
  padding: 20px;
}

/* Alert Styles */
.alert {
  border: none;
  border-left: 4px solid;
  border-radius: 6px;
}

.alert-danger {
  background-color: #fff5f5;
  border-color: #dc3545;
  color: #721c24;
}

.alert-success {
  background-color: #f1f8f4;
  border-color: #28a745;
  color: #1e5631;
}

.alert-info {
  background-color: #f0f7ff;
  border-color: #17a2b8;
  color: #0c5460;
}

/* Badge Styles */
.badge {
  padding: 6px 12px;
  border-radius: 20px;
  font-weight: 500;
  font-size: 12px;
}

.badge-primary {
  background: var(--primary-color);
  color: white;
}

/* Utility Classes */
.gradient-primary {
  background: var(--primary-gradient);
}

.text-muted {
  color: #999 !important;
}

.shadow-sm {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.rounded-3 {
  border-radius: 15px;
}

/* Responsive */
@media (max-width: 768px) {
  body {
    font-size: 13px;
  }
  
  .btn {
    padding: 6px 12px;
    font-size: 13px;
  }
}