/* Form Validation Styles */

/* Input States */
.form-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e1e5e9;
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.3s ease;
  background: #fff;
}

.form-input:focus {
  outline: none;
  border-color: #4CAF50;
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

/* Validation States */
.form-input.valid {
  border-color: #4CAF50;
  background: #f8fff8;
}

.form-input.invalid {
  border-color: #f44336;
  background: #fff8f8;
}

.form-input.validating {
  border-color: #ff9800;
  background: #fffaf0;
}

/* Error Messages */
.error-message {
  display: none;
  color: #f44336;
  font-size: 14px;
  margin-top: 4px;
  padding-left: 16px;
  position: relative;
}

.error-message::before {
  content: '⚠️';
  margin-right: 4px;
}

.form-input.invalid + .error-message {
  display: block;
  animation: slideDown 0.3s ease;
}

/* Success Messages */
.success-message {
  display: none;
  color: #4CAF50;
  font-size: 14px;
  margin-top: 4px;
  padding-left: 16px;
}

.success-message::before {
  content: '✓';
  margin-right: 4px;
}

.form-input.valid + .error-message + .success-message,
.form-input.valid + .success-message {
  display: block;
  animation: slideDown 0.3s ease;
}

/* Loading State */
.form-input.validating::after {
  content: '';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border: 2px solid #ff9800;
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Form Submission States */
.form-submitting {
  pointer-events: none;
  opacity: 0.7;
}

.form-submitting .btn {
  position: relative;
  color: transparent;
}

.form-submitting .btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  border: 2px solid #fff;
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Success State */
.form-success {
  background: #f8fff8;
  border: 2px solid #4CAF50;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  color: #2e7d32;
}

.form-success::before {
  content: '✅';
  font-size: 24px;
  display: block;
  margin-bottom: 8px;
}

/* Animations */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Input Icons */
.form-group.has-icon .form-input {
  padding-left: 44px;
}

.form-group.has-icon::before {
  content: attr(data-icon);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #666;
  z-index: 1;
}

.form-group.has-icon.valid::before {
  color: #4CAF50;
}

.form-group.has-icon.invalid::before {
  color: #f44336;
}

/* Character Counter */
.char-counter {
  font-size: 12px;
  color: #666;
  text-align: right;
  margin-top: 4px;
}

.char-counter.over-limit {
  color: #f44336;
}

/* Required Field Indicator */
.required::after {
  content: ' *';
  color: #f44336;
}