/* Authentication Page Styles */

.auth-page {
  min-height: 100vh;
  background: linear-gradient(135deg, 
    var(--primary-600) 0%, 
    var(--primary-700) 25%,
    var(--secondary-600) 50%,
    var(--secondary-700) 75%,
    var(--accent-600) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  position: relative;
  overflow: hidden;
}

/* ===== BACKGROUND ANIMATION ===== */
.auth-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 0;
}

.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
}

.shape {
  position: absolute;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  animation: float 20s infinite linear;
}

.shape-1 {
  width: 200px;
  height: 200px;
  top: 10%;
  left: -100px;
  animation-delay: 0s;
  background: rgba(255, 255, 255, 0.08);
}

.shape-2 {
  width: 150px;
  height: 150px;
  top: 60%;
  right: -75px;
  animation-delay: -8s;
  background: rgba(255, 255, 255, 0.06);
}

.shape-3 {
  width: 100px;
  height: 100px;
  top: 30%;
  right: 20%;
  animation-delay: -15s;
  background: rgba(255, 255, 255, 0.05);
}

.shape-4 {
  width: 120px;
  height: 120px;
  bottom: 20%;
  left: 10%;
  animation-delay: -5s;
  background: rgba(255, 255, 255, 0.07);
}

@keyframes float {
  0% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) rotate(360deg);
    opacity: 0;
  }
}

/* ===== AUTH CONTAINER ===== */
.auth-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
}

.auth-form-container {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-2xl);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  padding: var(--space-8);
  animation: slideInUp 0.6s ease-out;
}

[data-theme="dark"] .auth-form-container {
  background: rgba(33, 33, 33, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ===== AUTH HEADER ===== */
.auth-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.logo i {
  font-size: var(--font-size-4xl);
  color: var(--primary);
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo h1 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin: 0;
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

/* ===== AUTH FORM ===== */
.auth-form {
  width: 100%;
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.input-group {
  position: relative;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-10);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

[data-theme="dark"] .input-group input,
[data-theme="dark"] .input-group select {
  background: rgba(66, 66, 66, 0.8);
  color: var(--text-primary);
}

.input-group input:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255, 255, 255, 1);
  box-shadow: 0 0 0 4px rgba(33, 150, 243, 0.1);
}

[data-theme="dark"] .input-group input:focus,
[data-theme="dark"] .input-group select:focus {
  background: rgba(66, 66, 66, 1);
}

.input-group i {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--font-size-base);
  z-index: 2;
}

.toggle-password {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--font-size-base);
  z-index: 2;
  padding: var(--space-2);
  border-radius: var(--radius-base);
  transition: color var(--transition-base);
}

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

/* ===== FORM OPTIONS ===== */
.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-sm);
  position: relative;
  transition: all var(--transition-base);
}

.checkmark::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.checkbox-label input:checked + .checkmark::after {
  opacity: 1;
}

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

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

/* ===== BUTTONS ===== */
.btn-full {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  color: white;
  border: none;
  box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-800) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-medium);
  backdrop-filter: blur(10px);
}

.btn-outline:hover:not(:disabled) {
  background: rgba(33, 150, 243, 0.1);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Button loading state */
.btn .btn-text {
  transition: opacity var(--transition-base);
}

.btn.loading .btn-text {
  opacity: 0;
}

.btn.loading .loading-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* ===== AUTH DIVIDER ===== */
.auth-divider {
  text-align: center;
  margin: var(--space-8) 0;
  position: relative;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-light);
  z-index: 0;
}

.auth-divider span {
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  padding: 0 var(--space-4);
  position: relative;
  z-index: 1;
}

[data-theme="dark"] .auth-divider span {
  background: rgba(33, 33, 33, 0.95);
}

/* ===== PASSWORD STRENGTH ===== */
.password-strength {
  margin-top: var(--space-3);
}

.strength-bar {
  width: 100%;
  height: 4px;
  background: var(--neutral-200);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

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

.strength-fill.weak {
  width: 25%;
  background: var(--error-500);
}

.strength-fill.fair {
  width: 50%;
  background: var(--warning-500);
}

.strength-fill.good {
  width: 75%;
  background: var(--primary-500);
}

.strength-fill.strong {
  width: 100%;
  background: var(--success-500);
}

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

.strength-text.weak span { color: var(--error-600); }
.strength-text.fair span { color: var(--warning-600); }
.strength-text.good span { color: var(--primary-600); }
.strength-text.strong span { color: var(--success-600); }

/* ===== ROLE INFO ===== */
.role-info {
  margin: var(--space-4) 0;
}

.info-box {
  background: rgba(33, 150, 243, 0.1);
  border: 1px solid rgba(33, 150, 243, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.info-box i {
  color: var(--primary);
  font-size: var(--font-size-lg);
  margin-top: 2px;
}

.info-box p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: var(--line-height-base);
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  max-width: 400px;
  width: 100%;
}

.toast {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-left: 4px solid var(--primary);
  animation: slideInRight 0.5s ease-out;
  position: relative;
  overflow: hidden;
}

.toast.success {
  border-left-color: var(--success-500);
}

.toast.error {
  border-left-color: var(--error-500);
}

.toast.warning {
  border-left-color: var(--warning-500);
}

.toast-icon {
  font-size: var(--font-size-lg);
}

.toast.success .toast-icon { color: var(--success-600); }
.toast.error .toast-icon { color: var(--error-600); }
.toast.warning .toast-icon { color: var(--warning-600); }
.toast.info .toast-icon { color: var(--primary-600); }

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0 0 var(--space-1) 0;
}

.toast-message {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--font-size-lg);
  padding: var(--space-2);
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
}

.toast-close:hover {
  background: var(--neutral-100);
  color: var(--text-primary);
}

/* Toast progress bar */
.toast::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--primary);
  width: 100%;
  animation: shrink 5s linear;
}

.toast.success::before { background: var(--success-500); }
.toast.error::before { background: var(--error-500); }
.toast.warning::before { background: var(--warning-500); }

@keyframes shrink {
  from { width: 100%; }
  to { width: 0%; }
}

/* ===== MODAL STYLES ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  padding: var(--space-4);
  animation: fadeIn 0.3s ease-out;
}

.modal {
  background: white;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 100%;
  animation: scaleIn 0.3s ease-out;
  overflow: hidden;
}

[data-theme="dark"] .modal {
  background: var(--neutral-800);
}

.modal-content {
  padding: var(--space-8);
  text-align: center;
}

.modal-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  font-size: var(--font-size-4xl);
}

.modal-icon.success {
  background: var(--success-100);
  color: var(--success-600);
}

.modal-icon.error {
  background: var(--error-100);
  color: var(--error-600);
}

.modal h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.modal p {
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  line-height: var(--line-height-relaxed);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 640px) {
  .auth-page {
    padding: var(--space-3);
  }
  
  .auth-form-container {
    padding: var(--space-6);
  }
  
  .form-row {
    display: block;
  }
  
  .form-row .form-group {
    margin-bottom: var(--space-5);
  }
  
  .form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }
  
  .logo h1 {
    font-size: var(--font-size-2xl);
  }
  
  .toast-container {
    left: var(--space-3);
    right: var(--space-3);
    top: var(--space-3);
    max-width: none;
  }
  
  .modal {
    margin: var(--space-4);
  }
  
  .modal-content {
    padding: var(--space-6);
  }
}

@media (max-width: 480px) {
  .shape {
    display: none;
  }
  
  .auth-form-container {
    padding: var(--space-5);
  }
  
  .modal-icon {
    width: 60px;
    height: 60px;
    font-size: var(--font-size-3xl);
  }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  .shape,
  .auth-form-container,
  .toast,
  .modal-overlay,
  .modal {
    animation: none;
  }
  
  .toast::before {
    animation: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .auth-form-container {
    border: 2px solid var(--text-primary);
  }
  
  .input-group input,
  .input-group select {
    border: 2px solid var(--text-primary);
  }
  
  .btn-outline {
    border-width: 2px;
  }
}

/* Dark mode improvements */
[data-theme="dark"] {
  .info-box {
    background: rgba(33, 150, 243, 0.15);
    border-color: rgba(33, 150, 243, 0.3);
  }
  
  .toast {
    background: var(--neutral-800);
    border-color: var(--border-light);
  }
  
  .toast-close:hover {
    background: var(--neutral-700);
  }
}