/* ============================================
   AUTHENTICATION STYLES
   ============================================ */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-xl);
}

.auth-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.auth-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
}

.auth-blob-1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -200px;
  left: -200px;
}

.auth-blob-2 {
  width: 500px;
  height: 500px;
  background: var(--secondary);
  bottom: -200px;
  right: -200px;
}

.auth-container {
  width: 100%;
  max-width: 450px;
  position: relative;
  z-index: 1;
}

.auth-card {
  background: rgba(30, 41, 59, 0.8);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.auth-header {
  padding: var(--space-2xl) var(--space-2xl) var(--space-lg);
  text-align: center;
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-lg);
}

.auth-logo-icon {
  width: 45px;
  height: 45px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-text-fill-color: white;
}

.auth-logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: inherit;
  padding: 6px;
  background: rgba(0, 0, 0, 0.12);
}

.auth-tabs {
  display: flex;
  gap: var(--space-sm);
  background: rgba(15, 23, 42, 0.5);
  border-radius: var(--radius-lg);
  padding: 4px;
}

.auth-tab {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
}

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

.auth-tab.active {
  background: var(--gradient-primary);
  color: white;
}

.auth-body {
  padding: var(--space-xl) var(--space-2xl);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
  animation: fadeInUp 0.4s ease;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-xl);
}

/* Social Auth */
.auth-social {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.auth-social-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition-normal);
}

.auth-social-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}

/* Form Styles */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.input-group {
  position: relative;
  margin-bottom: var(--space-lg);
}

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

.input-wrapper {
  position: relative;
}

.input-wrapper .icon {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  transition: var(--transition-normal);
}

.input-wrapper input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 2.75rem;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition-normal);
}

.input-wrapper input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.input-wrapper input:focus + .icon {
  color: var(--primary-light);
}

.input-wrapper input::placeholder {
  color: var(--text-muted);
}

.input-wrapper .toggle-password {
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-normal);
}

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

/* Password Strength */
.password-strength {
  margin-top: var(--space-sm);
}

.strength-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-xs);
}

.strength-fill {
  height: 100%;
  width: 0;
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
}

.strength-fill.weak {
  width: 33%;
  background: var(--error);
}

.strength-fill.medium {
  width: 66%;
  background: var(--warning);
}

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

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

/* Checkbox */
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--primary);
}

.checkbox-group label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

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

.checkbox-group label a:hover {
  color: var(--primary);
}

/* Auth Actions */
.auth-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.forgot-password {
  font-size: 0.875rem;
  color: var(--primary-light);
  transition: var(--transition-normal);
}

.forgot-password:hover {
  color: var(--primary);
  text-decoration: underline;
}

.auth-submit {
  width: 100%;
  padding: 1rem;
  background: var(--gradient-primary);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.auth-submit:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.auth-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.auth-submit .loader {
  width: 20px;
  height: 20px;
  border-color: rgba(255, 255, 255, 0.3);
  border-top-color: white;
  margin-right: var(--space-sm);
}

/* Auth Footer */
.auth-footer {
  padding: var(--space-lg) var(--space-2xl) var(--space-2xl);
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.auth-footer-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.auth-footer-text a {
  color: var(--primary-light);
  font-weight: 600;
  transition: var(--transition-normal);
}

.auth-footer-text a:hover {
  color: var(--primary);
}

/* Error Message */
.error-message {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  color: var(--error);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
  animation: shake 0.5s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Success Animation */
.success-animation {
  text-align: center;
  padding: var(--space-xl);
}

.success-icon {
  width: 80px;
  height: 80px;
  background: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  animation: scaleIn 0.5s ease;
}

.success-icon svg {
  width: 40px;
  height: 40px;
  color: white;
}

.success-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.success-message {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

/* ============================================
   RESPONSIVE AUTH
   ============================================ */

@media (max-width: 480px) {
  .auth-page {
    padding: var(--space-md);
  }
  
  .auth-header {
    padding: var(--space-xl) var(--space-lg) var(--space-md);
  }
  
  .auth-body {
    padding: var(--space-lg);
  }
  
  .auth-footer {
    padding: var(--space-lg);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .auth-social {
    flex-direction: column;
  }
}