/**
 * Auth Modal Styles
 * Custom authentication UI styling using existing CSS variables
 */

/* ========================================
   Body Lock (Prevent Scroll)
   ======================================== */

html.auth-modal-open,
body.auth-modal-open {
  overflow: hidden;
  height: 100%;
}

body.auth-modal-open {
  position: fixed;
  width: 100%;
  touch-action: none;
  -webkit-overflow-scrolling: none;
}

/* ========================================
   Modal Overlay & Container
   ======================================== */

.auth-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal, 1002);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal, 0.2s ease), visibility var(--transition-normal, 0.2s ease);
  padding: var(--spacing-md, 16px);
}

.auth-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.auth-modal {
  background: var(--color-surface, #fff);
  border-radius: var(--radius-xl, 16px);
  width: 100%;
  max-width: 440px;
  max-height: 98vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-xl, 0 12px 32px rgba(0, 0, 0, 0.15));
  transform: translateY(20px);
  transition: transform var(--transition-normal, 0.2s ease);
  padding: var(--spacing-xl, 32px);
  
  /* Hide scrollbar on desktop */
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

.auth-modal::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.auth-modal-overlay.active .auth-modal {
  transform: translateY(0);
}

/* ========================================
   Close Button (Mobile Only)
   ======================================== */

.auth-modal-close {
  display: none;
  position: absolute;
  top: var(--spacing-md, 16px);
  right: var(--spacing-md, 16px);
  width: 36px;
  height: 36px;
  border: none;
  background: none !important;
  background-color: transparent !important;
  border-radius: var(--radius-full, 50%);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary, #666);
  transition: color var(--transition-fast, 0.15s ease);
  box-shadow: none !important;
  transform: none !important;
}

.auth-modal-close:hover {
  color: var(--color-text-primary, #333);
  background: none !important;
  background-color: transparent !important;
  box-shadow: none !important;
  transform: none !important;
}

.auth-modal-close:focus {
  outline: none;
  box-shadow: none !important;
}

.auth-modal-close:active {
  transform: none !important;
}

.auth-modal-close svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ========================================
   Logo
   ======================================== */

.auth-modal-logo {
  text-align: center;
  margin-bottom: var(--spacing-md, 16px);
}

.auth-logo-img {
  height: 36px;
  width: auto;
}

/* ========================================
   Title
   ======================================== */

.auth-modal-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text-primary, #333);
  text-align: center;
  margin: 0 0 var(--spacing-md, 16px) 0;
}

/* ========================================
   Tab Navigation
   ======================================== */

.auth-tabs {
  display: flex;
  gap: var(--spacing-xs, 4px);
  background: var(--color-background, #f5f5f5);
  padding: var(--spacing-xs, 4px);
  border-radius: var(--radius-md, 8px);
  margin-bottom: var(--spacing-md, 16px);
}

.auth-tab {
  flex: 1;
  padding: var(--spacing-sm, 8px) var(--spacing-md, 16px);
  border: none;
  background: transparent;
  border-radius: var(--radius-sm, 4px);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary, #666);
  cursor: pointer;
  transition: all var(--transition-fast, 0.15s ease);
}

.auth-tab:hover {
  color: var(--color-text-primary, #333);
  background: rgba(255, 255, 255, 0.1);
}

.auth-tab.active {
  background: var(--color-surface, #fff);
  color: var(--color-primary, #1a73e8);
  box-shadow: var(--shadow-sm, 0 2px 4px rgba(0, 0, 0, 0.05));
}

/* ========================================
   Messages (Error/Success)
   ======================================== */

.auth-message {
  padding: var(--spacing-md, 16px);
  border-radius: var(--radius-md, 8px);
  margin-bottom: var(--spacing-md, 16px);
  font-size: 14px;
  line-height: 1.5;
}

.auth-message-error {
  background: var(--color-danger-light, #fdf2f2);
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.auth-message-success {
  background: var(--color-success-light, #e8f5e9);
  color: #1e4620;
  border: 1px solid #c3e6cb;
}

/* ========================================
   Form Styles
   ======================================== */

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md, 16px);
}

.auth-form-description {
  font-size: 14px;
  color: var(--color-text-secondary, #666);
  line-height: 1.6;
  margin: 0 0 var(--spacing-sm, 8px) 0;
  text-align: center;
}

.auth-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs, 4px);
}

.auth-form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary, #333);
}

.auth-form-group input[type="text"],
.auth-form-group input[type="email"],
.auth-form-group input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  border: 2px solid var(--color-border, #e0e0e0);
  border-radius: var(--radius-md, 8px);
  background: var(--color-surface, #fff);
  color: var(--color-text-primary, #333);
  transition: border-color var(--transition-fast, 0.15s ease), box-shadow var(--transition-fast, 0.15s ease);
}

.auth-form-group input:hover {
  border-color: #c0c0c0;
}

.auth-form-group input:focus {
  outline: none;
  border-color: var(--color-primary, #1a73e8);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.auth-form-group input::placeholder {
  color: var(--color-text-muted, #999);
}

/* ========================================
   Password Input with Toggle
   ======================================== */

.auth-password-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.auth-password-wrapper input {
  padding-right: 48px;
}

.auth-password-toggle {
  position: absolute;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted, #999);
  transition: color var(--transition-fast, 0.15s ease);
}

.auth-password-toggle:hover {
  color: var(--color-text-secondary, #666);
}

.auth-password-toggle:focus {
  outline: none;
}

.auth-password-toggle svg {
  color: inherit;
  stroke: currentColor;
}

/* ========================================
   Password Requirements
   ======================================== */

.auth-password-requirements {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: var(--spacing-xs, 4px);
  padding: var(--spacing-xs, 4px) var(--spacing-sm, 8px);
  background: var(--color-background, #f5f5f5);
  border-radius: var(--radius-sm, 4px);
}

.auth-password-requirements .requirement {
  font-size: 12px;
  color: var(--color-text-muted, #999);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs, 4px);
  transition: color var(--transition-fast, 0.15s ease);
}

.auth-password-requirements .requirement .req-icon {
  width: 16px;
  text-align: center;
  font-size: 12px;
}

.auth-password-requirements .requirement.met {
  color: var(--color-success, #28a745);
}

.auth-password-requirements .requirement.met .req-icon {
  color: var(--color-success, #28a745);
}

/* ========================================
   Checkbox
   ======================================== */

.auth-checkbox-group {
  flex-direction: row;
  align-items: flex-start;
  margin-top: var(--spacing-xs, 4px);
}

.auth-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm, 8px);
  font-size: 14px;
  color: var(--color-text-secondary, #666);
  line-height: 1.5;
  cursor: pointer;
}

.auth-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-primary, #1a73e8);
}

.auth-checkbox-label a {
  color: var(--color-primary, #1a73e8);
  text-decoration: none;
}

.auth-checkbox-label a:hover {
  text-decoration: underline;
}

/* ========================================
   Submit Button
   ======================================== */

.auth-submit-btn {
  width: 100%;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary, #1a73e8);
  border: none;
  border-radius: var(--radius-md, 8px);
  cursor: pointer;
  transition: background var(--transition-fast, 0.15s ease), transform var(--transition-fast, 0.15s ease);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm, 8px);
  margin-top: var(--spacing-sm, 8px);
}

.auth-submit-btn:hover:not(:disabled) {
  background: var(--color-primary-dark, #1557b0);
  transform: translateY(-1px);
}

.auth-submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

.auth-submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Loading spinner */
.auth-submit-btn .btn-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: auth-spin 0.8s linear infinite;
}

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

/* ========================================
   Link Buttons
   ======================================== */

.auth-link-btn {
  background: none;
  border: none;
  color: var(--color-primary, #1a73e8);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: var(--spacing-sm, 10px);
  text-decoration: none;
  transition: color var(--transition-fast, 0.15s ease);
}

.auth-link-btn:hover {
  color: var(--color-primary-dark, #1557b0);
  background-color: transparent;
  box-shadow: none;
  text-decoration: underline;
}

/* ========================================
   Divider
   ======================================== */

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--spacing-md, 16px);
  margin: var(--spacing-md, 16px) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border, #e0e0e0);
}

.auth-divider span {
  font-size: 13px;
  color: var(--color-text-muted, #999);
  text-transform: lowercase;
}

/* ========================================
   Social Sign-In Buttons
   ======================================== */

.auth-social {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 8px);
}

.auth-social-btn {
  width: 100%;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  border: 2px solid var(--color-border, #e0e0e0);
  border-radius: var(--radius-md, 8px);
  background: var(--color-surface, #fff);
  color: var(--color-text-primary, #333);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm, 8px);
  transition: all var(--transition-fast, 0.15s ease);
}

.auth-social-btn:hover {
  background: var(--color-background, #f5f5f5);
  border-color: #c0c0c0;
}

.auth-google-btn svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Footer Links
   ======================================== */

.auth-footer {
  text-align: center;
  margin-top: var(--spacing-md, 16px);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 480px) {
  .auth-modal-overlay {
    padding: 0;
  }
  
  .auth-modal {
    max-width: 100%;
    max-height: 100%;
    height: 100%;
    border-radius: 0;
    padding: var(--spacing-xl, 32px) var(--spacing-md, 16px);
    overflow-y: auto;
  }
  
  .auth-modal-close {
    display: flex;
    top: var(--spacing-sm, 8px);
    right: var(--spacing-sm, 8px);
    width: 40px;
    height: 40px;
    z-index: 10;
  }
  
  .auth-modal-title {
    font-size: 20px;
  }
  
  .auth-form-group input[type="text"],
  .auth-form-group input[type="email"],
  .auth-form-group input[type="password"] {
    padding: 12px 14px;
    font-size: 16px; /* Prevents iOS zoom */
  }
  
  .auth-submit-btn,
  .auth-social-btn {
    padding: 12px 20px;
  }
}