/*
 * Photo2Form - Authentication Pages Styles
 * Styles for login, register, and other authentication pages
 */

/* ===============================================
   AUTH PAGE LAYOUT
   =============================================== */
body.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: var(--spacing-lg);
  margin: 0;
}

/* ===============================================
   AUTH CONTAINER
   =============================================== */
.auth-container {
  background: white;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-2xl);
  width: 100%;
  max-width: 450px;
  animation: slideUp var(--transition-slow);
}

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

/* ===============================================
   AUTH HEADER
   =============================================== */
.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md) auto;
  display: block;
}

.auth-logo svg {
  width: 100%;
  height: 100%;
}

.auth-title {
  font-size: var(--font-size-2xl);
  color: var(--text-primary);
  margin: 0 0 var(--spacing-xs) 0;
  font-weight: 600;
}

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

/* ===============================================
   AUTH FORM
   =============================================== */
.auth-form {
  margin-bottom: var(--spacing-lg);
}

.auth-form-group {
  margin-bottom: var(--spacing-lg);
}

.auth-form-group label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-base);
}

.auth-form-group input[type="text"],
.auth-form-group input[type="email"],
.auth-form-group input[type="password"] {
  width: 100%;
  padding: 14px;
  border: 2px solid var(--border-color-light);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  transition: var(--transition-base);
  background: var(--bg-input);
  color: var(--text-primary);
}

.auth-form-group input:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.auth-form-group input::placeholder {
  color: var(--text-disabled);
}

/* Password visibility toggle */
.auth-password-group {
  position: relative;
}

.auth-password-toggle {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--spacing-xs);
  transition: var(--transition-base);
}

.auth-password-toggle:hover {
  color: var(--text-primary);
}

/* Remember me checkbox */
.auth-remember {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.auth-remember input[type="checkbox"] {
  width: auto;
  margin: 0;
  cursor: pointer;
}

.auth-remember label {
  margin: 0;
  font-weight: normal;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

/* ===============================================
   AUTH BUTTONS
   =============================================== */
.auth-submit-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  margin-bottom: var(--spacing-md);
}

.auth-submit-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

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

.auth-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Secondary button */
.auth-secondary-btn {
  width: 100%;
  padding: 14px;
  background: white;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  margin-bottom: var(--spacing-sm);
}

.auth-secondary-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* ===============================================
   AUTH LINKS
   =============================================== */
.auth-links {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.auth-link {
  color: var(--primary-color);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: var(--transition-fast);
}

.auth-link:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}

/* ===============================================
   AUTH FOOTER
   =============================================== */
.auth-footer {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color-light);
}

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

.auth-footer-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-fast);
}

.auth-footer-link:hover {
  text-decoration: underline;
  color: var(--primary-hover);
}

/* ===============================================
   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(--border-color-light);
}

.auth-divider-text {
  position: relative;
  display: inline-block;
  background: white;
  padding: 0 var(--spacing-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

/* ===============================================
   AUTH ALERTS
   =============================================== */
.auth-alert {
  padding: 12px 16px;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base);
}

.auth-alert.error {
  background: #ffebee;
  color: #c62828;
  border-left: 4px solid var(--error-color);
}

.auth-alert.success {
  background: #e8f5e9;
  color: #2e7d32;
  border-left: 4px solid var(--success-color);
}

.auth-alert.info {
  background: #e3f2fd;
  color: #1565c0;
  border-left: 4px solid var(--info-color);
}

.auth-alert.warning {
  background: #fff3e0;
  color: #e65100;
  border-left: 4px solid var(--warning-color);
}

/* ===============================================
   SOCIAL AUTH BUTTONS
   =============================================== */
.auth-social-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.auth-social-btn {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--border-color-light);
  border-radius: var(--border-radius);
  background: white;
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

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

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

/* ===============================================
   AUTH LOADING STATE
   =============================================== */
.auth-loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top: 3px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: var(--spacing-sm);
  vertical-align: middle;
}

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

/* ===============================================
   RESPONSIVE AUTH
   =============================================== */
@media (max-width: 768px) {
  body.auth-page {
    padding: var(--spacing-md);
  }

  .auth-container {
    padding: var(--spacing-xl);
  }

  .auth-title {
    font-size: var(--font-size-xl);
  }

  .auth-logo {
    width: 60px;
    height: 60px;
  }
}

/* ===============================================
   BACK TO HOME LINK
   =============================================== */
.auth-back-link {
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  transition: var(--transition-base);
  font-size: var(--font-size-sm);
  backdrop-filter: blur(10px);
}

.auth-back-link:hover {
  background: rgba(255, 255, 255, 0.2);
  text-decoration: none;
  transform: translateX(-2px);
}