/* Authentication Modal Styles for FundFound */

.auth-container {
  padding: var(--spacing-2xl) var(--spacing-xl);
  min-height: 500px;
  position: relative;
}

.auth-form {
  display: none;
  animation: fadeInForm 0.4s ease-out;
}

.auth-form.active {
  display: block;
}

/* Auth Header */
.auth-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
  color: var(--text-muted);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* ==========================================
   USER TYPE SELECTOR
   ========================================== */

.user-type-selector {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.user-type-option {
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.user-type-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.option-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-md);
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-align: center;
}

.option-content:hover {
  border-color: var(--primary-light);
  background: var(--primary-50);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.user-type-option input:checked + .option-content {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.user-type-option input:checked + .option-content .option-icon {
  color: white;
}

.option-icon {
  width: 24px;
  height: 24px;
  color: var(--primary-color);
  transition: color var(--transition-fast);
}

.option-content span {
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

/* ==========================================
   FORM ELEMENTS
   ========================================== */

.auth-form form {
  display: flex;
  flex-direction: column;
}

/* Form Groups */
.form-group {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.form-group label {
  display: block;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  background: var(--bg-primary);
  transition: all var(--transition-fast);
  position: relative;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
  background: var(--bg-primary);
}


.form-group input::placeholder {
  color: var(--text-light);
  opacity: 0.7;
}

/* Form Row for side-by-side inputs */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

/* Input validation states */
.form-group input.error {
  border-color: var(--error-color);
  background: #fef2f2;
}

.form-group input.success {
  border-color: var(--success-color);
  background: #f0fdf4;
}

.form-group input.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group input.success:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Error message */
.error-message {
  color: var(--error-color);
  font-size: 0.75rem;
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.error-message svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ==========================================
   FORM OPTIONS (Remember me, Forgot password)
   ========================================== */

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* Custom Checkbox */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  position: relative;
}

.checkbox-label:hover .checkmark {
  border-color: var(--primary-color);
  background: var(--primary-50);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
  content: '✓';
  color: white;
  font-size: 12px;
  font-weight: bold;
  position: absolute;
}

/* Forgot Password Link */
.forgot-password {
  color: var(--primary-color);
  font-size: 0.875rem;
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
}

.forgot-password:hover {
  color: var(--primary-dark);
  background: var(--primary-50);
}

/* ==========================================
   AUTH DIVIDER
   ========================================== */

.auth-divider {
  position: relative;
  text-align: center;
  margin: var(--spacing-xl) 0;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gray-200);
}

.auth-divider span {
  background: white;
  padding: 0 var(--spacing-md);
  color: var(--text-muted);
  font-size: 0.875rem;
  position: relative;
}

/* ==========================================
   SOCIAL AUTHENTICATION
   ========================================== */

.social-auth {
  margin-bottom: var(--spacing-xl);
}

.btn-social {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: var(--spacing-md);
}

.btn-social:hover {
  border-color: var(--gray-300);
  background: var(--gray-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-social:active {
  transform: translateY(0);
}

.social-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.google-auth:hover {
  border-color: #4285f4;
  background: #f8f9ff;
}

.facebook-auth {
  background: #1877f2;
  color: white;
  border-color: #1877f2;
}

.facebook-auth:hover {
  background: #166fe5;
  border-color: #166fe5;
}

/* ==========================================
   FORM SWITCH LINKS
   ========================================== */

.auth-switch {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: var(--spacing-lg);
}

.auth-switch a {
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  margin-left: var(--spacing-xs);
}

.auth-switch a:hover {
  color: var(--primary-dark);
  background: var(--primary-50);
}

/* ==========================================
   LOADING STATES
   ========================================== */

.btn-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  margin: auto;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

.btn-loading .btn-text {
  opacity: 0;
}

/* ==========================================
   PASSWORD STRENGTH INDICATOR
   ========================================== */

.password-strength {
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.strength-bar {
  height: 4px;
  background: var(--gray-200);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.strength-fill {
  height: 100%;
  transition: all var(--transition-normal);
  border-radius: 2px;
}

.strength-fill.weak {
  width: 25%;
  background: var(--error-color);
}

.strength-fill.fair {
  width: 50%;
  background: var(--warning-color);
}

.strength-fill.good {
  width: 75%;
  background: var(--info-color);
}

.strength-fill.strong {
  width: 100%;
  background: var(--success-color);
}

.strength-text {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.strength-text.weak { color: var(--error-color); }
.strength-text.fair { color: var(--warning-color); }
.strength-text.good { color: var(--info-color); }
.strength-text.strong { color: var(--success-color); }

/* ==========================================
   TERMS AND CONDITIONS
   ========================================== */

.terms-checkbox {
  margin-bottom: var(--spacing-xl);
}

.terms-checkbox .checkbox-label {
  align-items: flex-start;
  line-height: 1.5;
  gap: var(--spacing-sm);
}

.terms-checkbox .checkmark {
  margin-top: 2px;
}

.terms-checkbox a {
  color: var(--primary-color);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: all var(--transition-fast);
}

.terms-checkbox a:hover {
  text-decoration-color: var(--primary-color);
  color: var(--primary-dark);
}

/* ==========================================
   FORM ANIMATIONS
   ========================================== */

@keyframes fadeInForm {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Form switching animations */
.auth-form.switching-out {
  animation: slideOutLeft 0.3s ease-in forwards;
}

.auth-form.switching-in {
  animation: slideInFromRight 0.3s ease-out forwards;
}

@keyframes slideOutLeft {
  to {
    opacity: 0;
    transform: translateX(-30px);
  }
}

/* ==========================================
   SUCCESS/ERROR STATES
   ========================================== */

.auth-success {
  text-align: center;
  padding: var(--spacing-2xl);
}

.auth-success .success-icon {
  width: 64px;
  height: 64px;
  background: var(--success-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  color: white;
}

.auth-success h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.auth-success p {
  color: var(--text-muted);
  margin-bottom: var(--spacing-xl);
}

.auth-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.auth-error .error-icon {
  width: 20px;
  height: 20px;
  color: var(--error-color);
  flex-shrink: 0;
}

.auth-error-message {
  color: var(--error-color);
  font-size: 0.875rem;
  font-weight: 500;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
  .auth-container {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .auth-title {
    font-size: 1.75rem;
  }

  .user-type-selector {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .modal-content {
    width: 95%;
    margin: var(--spacing-lg);
    max-height: calc(100vh - 2rem);
  }
}

@media (max-width: 480px) {
  .auth-container {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .option-content {
    padding: var(--spacing-md);
  }

  .option-content span {
    font-size: 0.8rem;
  }

  .option-icon {
    width: 20px;
    height: 20px;
  }
}

/* ==========================================
   ACCESSIBILITY IMPROVEMENTS
   ========================================== */

/* Focus indicators */
.form-group input:focus,
.form-group select:focus,
.user-type-option input:focus + .option-content,
.checkbox-label input:focus + .checkmark,
.btn-social:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .auth-form,
  .option-content,
  .form-group input,
  .checkmark,
  .btn-social,
  .strength-fill {
    transition: none;
    animation: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .form-group input,
  .user-type-option .option-content {
    border-width: 3px;
  }

  .checkbox-label input:checked + .checkmark {
    background: var(--text-primary);
    border-color: var(--text-primary);
  }
}

/* ==========================================
   DARK MODE SUPPORT (Optional)
   ========================================== */

@media (prefers-color-scheme: dark) {
  .auth-container {
    background: var(--gray-800);
    color: var(--gray-100);
  }

  .auth-title {
    color: var(--gray-100);
  }

  .auth-subtitle {
    color: var(--gray-400);
  }

  .form-group input,
  .form-group select {
    background: var(--gray-700);
    border-color: var(--gray-600);
    color: var(--gray-100);
  }

  .form-group label {
    color: var(--gray-200);
  }

  .user-type-selector {
    background: var(--gray-700);
  }

  .option-content {
    background: var(--gray-800);
    border-color: var(--gray-600);
    color: var(--gray-200);
  }

  .btn-social {
    background: var(--gray-700);
    border-color: var(--gray-600);
    color: var(--gray-200);
  }
}

/* ==========================================
   PRINT STYLES
   ========================================== */

@media print {
  .modal,
  .auth-container {
    display: none !important;
  }
}