/* form validation styles - shows errors and highlights invalid fields */

/* invalid input fields get a red border */
input.has-error,
textarea.has-error,
select.has-error {
  border-color: #dc2626;
  background-color: #fef2f2;
}

/* dark mode - red error styling */
html.dark-mode input.has-error,
html.dark-mode textarea.has-error,
html.dark-mode select.has-error {
  border-color: #ef4444;
  background-color: rgba(239, 68, 68, 0.1);
}

/* error message text appears below the field */
.error-message {
  display: block;
  color: #dc2626;
  font-size: 13px;
  margin-top: 4px;
  margin-left: 2px;
  animation: slideDown 0.2s ease-out;
}

/* dark mode error text */
html.dark-mode .error-message {
  color: #ef4444;
}

/* smooth animation when error appears */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* success message styling - green checkmark */
.success-message {
  display: block;
  color: #16a34a;
  font-size: 13px;
  margin-top: 4px;
  margin-left: 2px;
}

html.dark-mode .success-message {
  color: #22c55e;
}

/* validation summary at top of form */
.validation-summary {
  background-color: #fef2f2;
  border-left: 4px solid #dc2626;
  padding: 12px 16px;
  border-radius: 4px;
  margin-bottom: 16px;
  display: none;
}

.validation-summary.show {
  display: block;
}

.validation-summary h4 {
  margin: 0 0 8px 0;
  color: #991b1b;
  font-size: 14px;
  font-weight: 600;
}

.validation-summary ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.validation-summary li {
  color: #dc2626;
  font-size: 13px;
  margin-bottom: 4px;
}

.validation-summary li:before {
  content: '• ';
  margin-right: 6px;
}

/* dark mode validation summary */
html.dark-mode .validation-summary {
  background-color: rgba(239, 68, 68, 0.1);
  border-left-color: #ef4444;
}

html.dark-mode .validation-summary h4 {
  color: #fecaca;
}

html.dark-mode .validation-summary li {
  color: #ef4444;
}

/* focus state for fields - nice highlight */
input:focus,
textarea:focus,
select:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  outline: none;
}

input.has-error:focus,
textarea.has-error:focus,
select.has-error:focus {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

html.dark-mode input:focus,
html.dark-mode textarea:focus,
html.dark-mode select:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

html.dark-mode input.has-error:focus,
html.dark-mode textarea.has-error:focus,
html.dark-mode select.has-error:focus {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* required field indicator */
.label.required::after {
  content: ' *';
  color: #dc2626;
  font-weight: bold;
}

html.dark-mode .label.required::after {
  color: #ef4444;
}

/* button states during validation */
button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

button[type="submit"]:disabled:hover {
  transform: none;
}

/* tooltip for inline help */
.field-hint {
  font-size: 12px;
  color: #6b7280;
  margin-top: 4px;
  display: block;
}

html.dark-mode .field-hint {
  color: #9ca3af;
}

/* password strength indicator */
.password-strength {
  height: 4px;
  background-color: #e5e7eb;
  border-radius: 2px;
  margin-top: 6px;
  overflow: hidden;
}

html.dark-mode .password-strength {
  background-color: #4b5563;
}

.password-strength-bar {
  height: 100%;
  width: 0%;
  border-radius: 2px;
  transition: width 0.3s ease, background-color 0.3s ease;
  background-color: #ef4444;
}

.password-strength-bar.weak {
  width: 33%;
  background-color: #ef4444;
}

.password-strength-bar.medium {
  width: 66%;
  background-color: #f59e0b;
}

.password-strength-bar.strong {
  width: 100%;
  background-color: #10b981;
}