:root {
  --primary-color: #302b63;
  --secondary-color: #302b63;
  --accent-color: #ff6b6b;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --danger-color: #f44336;
  --dark-color: #2c3e50;
  --light-color: #f8f9fa;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #ffffff 0%, #ffffff 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  color: var(--dark-color);
}

.container {
  width: 100%;
  max-width: 800px;
  background-color: white;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.header {
  background-color: var(--primary-color);
  color: white;
  padding: 30px;
  text-align: center;
}

.header h1 {
  font-size: 2rem;
  margin-bottom: 10px;
}

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

.card {
  padding: 30px;
}

.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 30px;
}

.qr-wrapper {
  position: relative;
  margin-bottom: 15px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

#qr-code {
  display: block;
  background-color: white;
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition);
}

.loading-overlay.active {
  opacity: 1;
}

.qr-info {
  text-align: center;
  color: var(--dark-color);
}

.qr-info i {
  color: var(--primary-color);
  margin-right: 5px;
}

.form-group {
  display: grid;
  gap: 20px;
  margin-bottom: 30px;
}

.input-group {
  display: flex;
  flex-direction: column;
}

.input-group label {
  margin-bottom: 8px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.input-group label i {
  color: var(--primary-color);
}

.form-input {
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(74, 107, 223, 0.2);
}

.password-input {
  position: relative;
}

.toggle-password {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #777;
  cursor: pointer;
  padding: 5px;
}

.checkbox {
  margin-right: 8px;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  padding: 12px 20px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--box-shadow);
}

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

.btn.secondary {
  background-color: var(--light-color);
  color: var(--dark-color);
  border: 1px solid #ddd;
}

.instructions {
  background-color: var(--light-color);
  padding: 20px 30px;
}

.instructions h3 {
  margin-bottom: 15px;
  color: var(--primary-color);
}

.instructions ol {
  padding-left: 20px;
}

.instructions li {
  margin-bottom: 8px;
  line-height: 1.5;
}

@media (max-width: 600px) {
  .header h1 {
    font-size: 1.5rem;
  }

  .actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

@media print {
  body {
    background: none;
  }

  .container {
    box-shadow: none;
  }

  .header, .form-group, .actions, .instructions {
    display: none;
  }

  .card {
    padding: 0;
  }

  .qr-container {
    margin: 0;
  }
}