/* Authentication Styles */

.auth-main {
  min-height: calc(100vh - var(--header-height));
  padding-top: var(--header-height);
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f0fe 100%);
  display: flex;
  align-items: center;
  padding-bottom: var(--spacing-2xl);
}

.auth-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  padding: var(--spacing-xl) 0;
}

.auth-container.login-container {
  max-width: 400px;
}

.auth-card {
  background: var(--background);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-title {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group.form-options {
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

.form-label {
  font-weight: 500;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.form-input,
.form-select {
  padding: var(--spacing-base);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  background: var(--background);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

.form-input:invalid {
  border-color: var(--error-color);
}

.form-input:invalid:focus {
  box-shadow: 0 0 0 3px rgba(234, 67, 53, 0.1);
}

/* Password Strength Indicator */
.password-strength {
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  margin-top: var(--spacing-xs);
  overflow: hidden;
  transition: all var(--transition-base);
}

.password-strength::before {
  content: '';
  display: block;
  height: 100%;
  width: 0;
  background: var(--error-color);
  border-radius: 2px;
  transition: all var(--transition-base);
}

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

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

.password-strength.good::before {
  width: 75%;
  background: var(--primary-color);
}

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

/* Checkbox Styles */
.checkbox-group {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox-custom {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--background);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  margin-top: 2px;
}

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

.checkbox-input:checked + .checkbox-custom::before {
  content: '✓';
  color: white;
  font-size: 12px;
  font-weight: bold;
}

.checkbox-input:focus + .checkbox-custom {
  box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

.checkbox-text {
  color: var(--text-secondary);
  flex: 1;
}

.checkbox-text a {
  color: var(--primary-color);
  text-decoration: underline;
}

/* Auth Button */
.auth-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: var(--spacing-base) var(--spacing-lg);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-btn:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-base);
}

.auth-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-text,
.btn-loader {
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-loader {
  position: absolute;
}

/* Auth Divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--spacing-base);
  margin: var(--spacing-base) 0;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* Social Auth */
.social-auth {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-base);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-base);
  background: var(--background);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.social-btn:hover {
  background: var(--hover-bg);
  border-color: var(--primary-color);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.google-btn {
  border-color: #dadce0;
}

.google-btn:hover {
  background: #f8f9fa;
  border-color: #dadce0;
}

/* Auth Footer */
.auth-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.auth-footer p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.auth-link {
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
}

.auth-link:hover {
  text-decoration: underline;
}

.forgot-link {
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  text-decoration: none;
}

.forgot-link:hover {
  text-decoration: underline;
}

/* Auth Features (Register Page) */
.auth-features {
  background: var(--background);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-base);
  border: 1px solid var(--border-color);
}

.auth-features h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  text-align: center;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-base);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-base);
  background: var(--surface);
  border-radius: var(--radius-base);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.feature-item svg {
  color: var(--primary-color);
  flex-shrink: 0;
}

/* Form Validation Messages */
.form-error {
  color: var(--error-color);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-success {
  color: var(--success-color);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-error svg,
.form-success svg {
  width: 16px;
  height: 16px;
}

/* Loading Overlay */
.auth-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  z-index: 10;
}

[data-theme="dark"] .auth-loading {
  background: rgba(0, 0, 0, 0.9);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Auth Styles */
@media (max-width: 1023px) {
  .auth-container {
    grid-template-columns: 1fr;
    max-width: 500px;
  }
  
  .auth-features {
    order: -1;
  }
}

@media (max-width: 768px) {
  .auth-main {
    padding-bottom: var(--spacing-xl);
  }
  
  .auth-container {
    padding: var(--spacing-base) 0;
    gap: var(--spacing-xl);
  }
  
  .auth-card {
    padding: var(--spacing-xl);
    margin: 0 var(--spacing-base);
  }
  
  .auth-title {
    font-size: var(--font-size-2xl);
  }
  
  .auth-features {
    margin: 0 var(--spacing-base);
    padding: var(--spacing-lg);
  }
  
  .features-list {
    gap: var(--spacing-sm);
  }
  
  .feature-item {
    padding: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .auth-card {
    padding: var(--spacing-lg);
    margin: 0 var(--spacing-sm);
    border-radius: var(--radius-lg);
  }
  
  .auth-title {
    font-size: var(--font-size-xl);
  }
  
  .form-group.form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .auth-features {
    margin: 0 var(--spacing-sm);
    padding: var(--spacing-base);
  }
  
  .auth-features h3 {
    font-size: var(--font-size-base);
  }
  
  .feature-item {
    font-size: var(--font-size-xs);
  }
}

/* Dark Theme Auth Styles */
[data-theme="dark"] .auth-main {
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-surface) 100%);
}

[data-theme="dark"] .auth-card,
[data-theme="dark"] .auth-features {
  background: var(--dark-surface);
  border-color: var(--dark-border);
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select {
  background: var(--dark-bg);
  border-color: var(--dark-border);
  color: var(--dark-text-primary);
}

[data-theme="dark"] .checkbox-custom {
  background: var(--dark-bg);
  border-color: var(--dark-border);
}

[data-theme="dark"] .social-btn {
  background: var(--dark-bg);
  border-color: var(--dark-border);
}

[data-theme="dark"] .social-btn:hover {
  background: var(--dark-hover-bg);
}

[data-theme="dark"] .feature-item {
  background: var(--dark-bg);
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .form-input,
  .form-select {
    border-width: 2px;
  }
  
  .checkbox-custom {
    border-width: 2px;
  }
  
  .auth-btn {
    box-shadow: 0 0 0 2px var(--primary-dark);
  }
  
  .social-btn {
    border-width: 2px;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .auth-btn:hover {
    transform: none;
  }
  
  .social-btn:hover {
    transform: none;
  }
  
  .loading-spinner {
    animation: none;
  }
}