/* OAuth Icon Placeholders and Improvements */

/* Google Icon Placeholder */
.oauth-icon[alt="Google"], 
.oauth-icon[src*="google"] {
  position: relative;
}

.oauth-icon[alt="Google"]::after,
.oauth-icon[src*="google"]::after {
  content: "G";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #4285f4 0%, #db4437 100%);
  color: white;
  font-weight: bold;
  font-family: 'Arial', sans-serif;
  border-radius: 4px;
  font-size: 12px;
}

/* GitHub Icon Placeholder */
.oauth-icon[alt="GitHub"], 
.oauth-icon[src*="github"] {
  position: relative;
}

.oauth-icon[alt="GitHub"]::after,
.oauth-icon[src*="github"]::after {
  content: "⚡";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #333 0%, #24292e 100%);
  color: white;
  font-weight: bold;
  border-radius: 4px;
  font-size: 12px;
}

/* OAuth Button Improvements */
.btn-oauth {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 2px solid #e0e0e0;
  background: white;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.3s ease;
  text-decoration: none;
  color: #333;
  width: 100%;
  justify-content: center;
  margin-bottom: 12px;
}

.btn-oauth:hover {
  border-color: #d0d0d0;
  background: #f9f9f9;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-oauth:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.btn-oauth .oauth-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border-radius: 4px;
}

/* Specific OAuth Button Styles */
.btn-google:hover {
  border-color: #4285f4;
  background: #f8f9ff;
}

.btn-github:hover {
  border-color: #333;
  background: #f8f8f8;
}

/* Avatar/Profile Image Placeholders */
.testimonial-avatar, 
.profile-avatar,
.user-avatar {
  position: relative;
  display: inline-block;
}

.testimonial-avatar::after,
.profile-avatar::after,
.user-avatar::after {
  content: "👤";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 50%;
  font-size: 20px;
}

/* Loading States for OAuth */
.btn-oauth.loading {
  pointer-events: none;
  opacity: 0.7;
}

.btn-oauth.loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 20px;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: oauth-spin 1s linear infinite;
}

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

/* Error States */
.btn-oauth.error {
  border-color: #f56565;
  background: #fff5f5;
  color: #c53030;
}

.btn-oauth.error:hover {
  border-color: #e53e3e;
  background: #fed7d7;
}

/* Success States */
.btn-oauth.success {
  border-color: #48bb78;
  background: #f0fff4;
  color: #2f855a;
}

/* Form Enhancements */
.auth-form {
  position: relative;
}

.form-group {
  position: relative;
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: #374151;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.3s ease;
  background: white;
}

.form-input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-input.error {
  border-color: #f56565;
  background: #fff5f5;
}

.form-input.success {
  border-color: #48bb78;
  background: #f0fff4;
}

/* Password Toggle Button */
.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: #6b7280;
  transition: color 0.3s ease;
}

.password-toggle:hover {
  color: #374151;
}

/* Mobile Improvements for Auth Forms */
@media (max-width: 768px) {
  .btn-oauth {
    padding: 14px 16px;
    font-size: 16px;
  }
  
  .oauth-icon {
    width: 22px !important;
    height: 22px !important;
  }
  
  .form-input {
    padding: 14px 16px;
    font-size: 16px;
  }
  
  .auth-card {
    padding: 24px 20px;
    margin: 20px 10px;
  }
  
  .testimonial-avatar::after,
  .profile-avatar::after,
  .user-avatar::after {
    font-size: 24px;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  .btn-oauth {
    background: #1f2937;
    border-color: #374151;
    color: #f9fafb;
  }
  
  .btn-oauth:hover {
    background: #374151;
    border-color: #4b5563;
  }
  
  .form-input {
    background: #1f2937;
    border-color: #374151;
    color: #f9fafb;
  }
  
  .form-input:focus {
    border-color: #8b9df9;
    background: #111827;
  }
  
  .form-label {
    color: #f9fafb;
  }
}

/* Accessibility Improvements */
.btn-oauth:focus {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

.form-input:focus {
  outline: none;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .btn-oauth {
    border-width: 3px;
  }
  
  .form-input {
    border-width: 3px;
  }
  
  .oauth-icon::after {
    border: 2px solid currentColor;
  }
}