/* ===== METINGZ PROFESSIONAL LOGIN PAGE ===== */
/* ===== DESIGN SYSTEM ===== */
:root {
  /* Login Specific Colors */
  --login-bg-primary: #ffffff;
  --login-bg-secondary: #f8fafc;
  --login-bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --login-bg-gradient-alt: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --login-card-bg: rgba(255, 255, 255, 0.95);
  --login-card-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  --login-border: #e2e8f0;
  
  /* Text Colors */
  --login-text-primary: #1e293b;
  --login-text-secondary: #475569;
  --login-text-muted: #64748b;
  
  /* Accent Colors */
  --login-primary: #4f46e5;
  --login-primary-hover: #4338ca;
  --login-success: #10b981;
  --login-error: #ef4444;
  --login-warning: #f59e0b;
  --login-info: #3b82f6;
  
  /* Social Colors */
  --google-red: #db4437;
  --linkedin-blue: #0077b5;
  --github-gray: #333333;
  
  /* Effects */
  --login-radius-sm: 8px;
  --login-radius-md: 12px;
  --login-radius-lg: 16px;
  --login-radius-xl: 24px;
  --login-radius-2xl: 32px;
  --login-radius-full: 9999px;
  
  /* Shadows */
  --login-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --login-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --login-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --login-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --login-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --login-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --login-transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --login-transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --login-transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Spacing */
  --login-space-xs: 0.5rem;
  --login-space-sm: 0.75rem;
  --login-space-md: 1rem;
  --login-space-lg: 1.5rem;
  --login-space-xl: 2rem;
  --login-space-2xl: 3rem;
  --login-space-3xl: 4rem;
  --login-space-4xl: 6rem;
}

/* Dark Mode Variables */
@media (prefers-color-scheme: dark) {
  :root {
    --login-bg-primary: #0f172a;
    --login-bg-secondary: #1e293b;
    --login-card-bg: rgba(30, 41, 59, 0.95);
    --login-card-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    --login-border: #334155;
    
    --login-text-primary: #f1f5f9;
    --login-text-secondary: #cbd5e1;
    --login-text-muted: #94a3b8;
    
    --login-primary: #6366f1;
    --login-primary-hover: #818cf8;
  }
}

/* ===== BASE RESETS ===== */
.login-wrapper *,
.login-wrapper *::before,
.login-wrapper *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== LOGIN WRAPPER & BACKGROUND ===== */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--login-space-md);
  background: var(--login-bg-gradient);
  background-attachment: fixed;
  position: relative;
  overflow: hidden;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Animated Background Elements */
.background-animation {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: float 20s infinite ease-in-out;
  z-index: 0;
}

.shape-1 {
  width: 400px;
  height: 400px;
  top: -150px;
  left: -150px;
  animation-delay: 0s;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(124, 58, 237, 0.05) 100%);
}

.shape-2 {
  width: 300px;
  height: 300px;
  bottom: -100px;
  right: -100px;
  animation-delay: 5s;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.05) 100%);
}

.shape-3 {
  width: 200px;
  height: 200px;
  top: 50%;
  right: 20%;
  animation-delay: 10s;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(192, 132, 252, 0.05) 100%);
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(20px, -20px) rotate(5deg);
  }
  50% {
    transform: translate(-15px, 15px) rotate(-5deg);
  }
  75% {
    transform: translate(10px, -10px) rotate(3deg);
  }
}

/* Particle Effect */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.particle {
  position: absolute;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  animation: particle-float 15s infinite linear;
}

@keyframes particle-float {
  from {
    transform: translateY(100vh) rotate(0deg);
  }
  to {
    transform: translateY(-100px) rotate(360deg);
  }
}

/* ===== LOGIN CONTAINER ===== */
.login-container {
  width: 100%;
  max-width: 440px;
  background: var(--login-card-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--login-radius-2xl);
  box-shadow: var(--login-shadow-2xl);
  padding: var(--login-space-2xl);
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.1);
  animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ===== LOGIN HEADER ===== */
.login-header {
  text-align: center;
  margin-bottom: var(--login-space-2xl);
}

.logo-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--login-space-sm);
}

.login-header h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--login-text-primary);
  margin: 0;
  background: linear-gradient(135deg, var(--login-primary) 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.login-subtitle {
  font-size: 1rem;
  color: var(--login-text-secondary);
  font-weight: 400;
  margin: 0;
  max-width: 320px;
  line-height: 1.5;
}

/* ===== MESSAGES CONTAINER ===== */
.messages-container {
  margin-bottom: var(--login-space-lg);
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message {
  display: flex;
  align-items: flex-start;
  padding: var(--login-space-md);
  border-radius: var(--login-radius-lg);
  margin-bottom: var(--login-space-sm);
  border: 1px solid transparent;
  animation: messageSlide 0.3s ease-out;
  transition: all var(--login-transition-base);
}

.message.success {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
  color: var(--login-success);
}

.message.error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.2);
  color: var(--login-error);
}

.message.warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.2);
  color: var(--login-warning);
}

.message.info {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.2);
  color: var(--login-info);
}

.message-icon {
  flex-shrink: 0;
  margin-right: var(--login-space-sm);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
}

.message-content {
  flex: 1;
  display: flex;
  align-items: center;
}

.message-text {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
}

.message-close {
  background: transparent;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0;
  margin-left: var(--login-space-sm);
  opacity: 0.7;
  transition: opacity var(--login-transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.message-close:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.1);
}

@keyframes messageSlide {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===== INVITE BANNER ===== */
.invite-login-banner {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(124, 58, 237, 0.05) 100%);
  border-radius: var(--login-radius-lg);
  padding: var(--login-space-lg);
  margin-bottom: var(--login-space-lg);
  border: 1px solid rgba(79, 70, 229, 0.2);
  animation: pulse 2s infinite;
  position: relative;
  overflow: hidden;
}

.invite-login-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--login-primary), #7c3aed);
  animation: shimmer 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.2);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(79, 70, 229, 0);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

.invite-banner-content {
  display: flex;
  align-items: flex-start;
  gap: var(--login-space-md);
}

.invite-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--login-primary), #7c3aed);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.invite-details {
  flex: 1;
}

.invite-details h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--login-text-primary);
  margin: 0 0 var(--login-space-xs) 0;
  line-height: 1.3;
}

.invite-details > p {
  font-size: 0.875rem;
  color: var(--login-text-secondary);
  margin: 0 0 var(--login-space-md) 0;
  line-height: 1.4;
}

.invite-preview {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--login-radius-md);
  padding: var(--login-space-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.invite-preview p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--login-text-secondary);
  line-height: 1.4;
}

.invite-preview strong {
  color: var(--login-text-primary);
  font-weight: 600;
}

.invite-host {
  font-size: 0.813rem;
  color: var(--login-text-muted);
  margin-top: var(--login-space-xs) !important;
  font-style: italic;
}

/* ===== LOGIN FORM ===== */
.login-form {
  margin-bottom: var(--login-space-xl);
}

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

.form-label {
  display: flex;
  align-items: center;
  gap: var(--login-space-xs);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--login-text-primary);
  margin-bottom: var(--login-space-xs);
  transition: color var(--login-transition-fast);
}

.form-label i {
  color: var(--login-primary);
  font-size: 0.875rem;
  width: 16px;
  text-align: center;
}

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

.form-input {
  width: 100%;
  padding: var(--login-space-md);
  font-size: 1rem;
  background: var(--login-bg-secondary);
  border: 2px solid var(--login-border);
  border-radius: var(--login-radius-lg);
  color: var(--login-text-primary);
  transition: all var(--login-transition-base);
  outline: none;
  font-family: inherit;
  padding-right: 48px;
}

.form-input::placeholder {
  color: var(--login-text-muted);
  opacity: 0.7;
}

.form-input:hover {
  border-color: var(--login-primary);
  background: var(--login-bg-primary);
}

.form-input:focus {
  border-color: var(--login-primary);
  background: var(--login-bg-primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
  transform: translateY(-1px);
}

.input-wrapper.focused .form-input {
  border-color: var(--login-primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

/* Form validation states */
.form-group.valid .form-input {
  border-color: var(--login-success);
  background: rgba(16, 185, 129, 0.05);
}

.form-group.invalid .form-input {
  border-color: var(--login-error);
  background: rgba(239, 68, 68, 0.05);
}

.input-feedback {
  font-size: 0.75rem;
  margin-top: var(--login-space-xs);
  min-height: 18px;
  font-weight: 500;
  transition: all var(--login-transition-fast);
}

.form-group.valid .input-feedback {
  color: var(--login-success);
}

.form-group.invalid .input-feedback {
  color: var(--login-error);
}

/* Password toggle button */
.password-toggle {
  position: absolute;
  right: var(--login-space-sm);
  background: transparent;
  border: none;
  color: var(--login-text-muted);
  cursor: pointer;
  padding: var(--login-space-xs);
  border-radius: var(--login-radius-sm);
  transition: all var(--login-transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.password-toggle:hover {
  color: var(--login-primary);
  background: rgba(79, 70, 229, 0.1);
}

.password-toggle:active {
  transform: scale(0.95);
}

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

/* Custom checkbox */
.checkbox-container {
  display: flex;
  align-items: center;
  position: relative;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--login-text-secondary);
  user-select: none;
  transition: color var(--login-transition-fast);
}

.checkbox-container:hover {
  color: var(--login-text-primary);
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--login-bg-secondary);
  border: 2px solid var(--login-border);
  border-radius: 6px;
  margin-right: var(--login-space-sm);
  transition: all var(--login-transition-base);
  position: relative;
}

.checkbox-container:hover .checkmark {
  border-color: var(--login-primary);
  background: var(--login-bg-primary);
}

.checkbox-container input:checked ~ .checkmark {
  background: var(--login-primary);
  border-color: var(--login-primary);
}

.checkbox-container input:checked ~ .checkmark::after {
  content: '✓';
  color: white;
  font-size: 0.75rem;
  font-weight: bold;
  animation: checkmark 0.2s ease-out;
}

@keyframes checkmark {
  from {
    transform: scale(0);
  }
  to {
    transform: scale(1);
  }
}

/* Forgot password link */
.forgot-password {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--login-primary);
  text-decoration: none;
  transition: all var(--login-transition-fast);
  position: relative;
  padding-bottom: 2px;
}

.forgot-password::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--login-primary);
  transition: width var(--login-transition-base);
}

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

.forgot-password:hover::after {
  width: 100%;
}

/* ===== SUBMIT BUTTON ===== */
.submit-btn {
  width: 100%;
  padding: var(--login-space-lg);
  background: linear-gradient(135deg, var(--login-primary), #7c3aed);
  color: white;
  border: none;
  border-radius: var(--login-radius-lg);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--login-transition-base);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--login-space-sm);
  margin-bottom: var(--login-space-xl);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
  letter-spacing: 0.5px;
}

.submit-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--login-transition-slow);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
}

.submit-btn:hover::before {
  left: 100%;
}

.submit-btn:active {
  transform: translateY(0);
  transition: transform var(--login-transition-fast);
}

.submit-btn.loading {
  pointer-events: none;
  opacity: 0.9;
}

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

.submit-btn.loading .btn-loader {
  opacity: 1;
}

.btn-text {
  display: flex;
  align-items: center;
  gap: var(--login-space-sm);
  transition: opacity var(--login-transition-fast);
}

.btn-text i {
  font-size: 1.125rem;
}

.btn-loader {
  position: absolute;
  opacity: 0;
  transition: opacity var(--login-transition-fast);
}

.loader {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ===== DIVIDER ===== */
.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin-bottom: var(--login-space-lg);
  color: var(--login-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--login-border);
}

.divider span {
  padding: 0 var(--login-space-md);
}

/* ===== REGISTER LINK ===== */
.alternative-login {
  margin-bottom: var(--login-space-xl);
}

.register-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--login-space-sm);
  width: 100%;
  padding: var(--login-space-lg);
  background: transparent;
  border: 2px solid var(--login-border);
  border-radius: var(--login-radius-lg);
  color: var(--login-text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--login-transition-base);
  position: relative;
  overflow: hidden;
}

.register-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(79, 70, 229, 0.1), transparent);
  transition: left var(--login-transition-slow);
}

.register-link:hover {
  border-color: var(--login-primary);
  background: rgba(79, 70, 229, 0.05);
  transform: translateY(-2px);
  box-shadow: var(--login-shadow-sm);
}

.register-link:hover::before {
  left: 100%;
}

.register-link i {
  color: var(--login-primary);
  font-size: 1.125rem;
  transition: transform var(--login-transition-base);
}

.register-link:hover i {
  transform: translateX(4px);
}

/* ===== SOCIAL LOGIN ===== */
.social-login {
  margin-bottom: var(--login-space-xl);
}

.social-divider {
  text-align: center;
  color: var(--login-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--login-space-lg);
  position: relative;
}

.social-divider::before,
.social-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(50% - 80px);
  height: 1px;
  background: var(--login-border);
}

.social-divider::before {
  left: 0;
}

.social-divider::after {
  right: 0;
}

.social-buttons {
  display: flex;
  gap: var(--login-space-md);
}

.social-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--login-space-sm);
  padding: var(--login-space-md);
  border: 2px solid var(--login-border);
  border-radius: var(--login-radius-lg);
  background: transparent;
  color: var(--login-text-primary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--login-transition-base);
  position: relative;
  overflow: hidden;
}

.social-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left var(--login-transition-slow);
}

.social-btn:hover::before {
  left: 100%;
}

.google-btn:hover {
  border-color: var(--google-red);
  background: rgba(219, 68, 55, 0.05);
  color: var(--google-red);
}

.google-btn:hover i {
  color: var(--google-red);
}

.linkedin-btn:hover {
  border-color: var(--linkedin-blue);
  background: rgba(0, 119, 181, 0.05);
  color: var(--linkedin-blue);
}

.linkedin-btn:hover i {
  color: var(--linkedin-blue);
}

.social-btn i {
  font-size: 1.125rem;
  transition: color var(--login-transition-fast);
}

/* ===== SECURITY NOTICE ===== */
.security-notice {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--login-space-sm);
  font-size: 0.75rem;
  color: var(--login-text-muted);
  text-align: center;
  padding: var(--login-space-md);
  background: var(--login-bg-secondary);
  border-radius: var(--login-radius-lg);
  border: 1px solid var(--login-border);
}

.security-notice i {
  color: var(--login-success);
  font-size: 0.875rem;
}

/* ===== DARK MODE ENHANCEMENTS ===== */
@media (prefers-color-scheme: dark) {
  .login-container {
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(40px);
  }
  
  .form-input {
    background: rgba(15, 23, 42, 0.5);
  }
  
  .form-input:hover,
  .form-input:focus {
    background: rgba(15, 23, 42, 0.8);
  }
  
  .invite-login-banner {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.05) 100%);
    border-color: rgba(99, 102, 241, 0.2);
  }
  
  .invite-preview {
    background: rgba(15, 23, 42, 0.5);
  }
  
  .social-btn:hover {
    background: rgba(255, 255, 255, 0.05);
  }
  
  .security-notice {
    background: rgba(15, 23, 42, 0.5);
  }
}

/* ===== RESPONSIVE DESIGN ===== */

/* Large Desktops (1440px and up) */
@media (min-width: 1440px) {
  .login-container {
    max-width: 480px;
    padding: var(--login-space-3xl);
  }
  
  .login-header h2 {
    font-size: 2.5rem;
  }
  
  .login-subtitle {
    font-size: 1.125rem;
  }
}

/* Tablets Landscape (1024px - 1439px) */
@media (max-width: 1439px) and (min-width: 1024px) {
  .login-container {
    max-width: 420px;
  }
}

/* Tablets Portrait (768px - 1023px) */
@media (max-width: 1023px) and (min-width: 768px) {
  .login-wrapper {
    padding: var(--login-space-xl);
  }
  
  .login-container {
    max-width: 400px;
    padding: var(--login-space-xl);
  }
  
  .login-header h2 {
    font-size: 1.75rem;
  }
  
  .shape-1 {
    width: 300px;
    height: 300px;
  }
  
  .shape-2 {
    width: 200px;
    height: 200px;
  }
  
  .shape-3 {
    width: 150px;
    height: 150px;
  }
}

/* Large Mobile (480px - 767px) */
@media (max-width: 767px) and (min-width: 480px) {
  .login-wrapper {
    padding: var(--login-space-lg);
  }
  
  .login-container {
    padding: var(--login-space-lg);
    max-width: 100%;
    margin: 0 auto;
  }
  
  .login-header h2 {
    font-size: 1.5rem;
  }
  
  .login-subtitle {
    font-size: 0.875rem;
  }
  
  .shape-1,
  .shape-2,
  .shape-3 {
    display: none;
  }
  
  .social-buttons {
    flex-direction: column;
  }
  
  .social-btn {
    padding: var(--login-space-lg);
  }
  
  .invite-banner-content {
    flex-direction: column;
    text-align: center;
  }
  
  .invite-icon {
    align-self: center;
  }
}

/* Small Mobile (below 480px) */
@media (max-width: 479px) {
  .login-wrapper {
    padding: var(--login-space-md);
  }
  
  .login-container {
    padding: var(--login-space-lg);
    border-radius: var(--login-radius-xl);
    max-width: 100%;
  }
  
  .login-header h2 {
    font-size: 1.375rem;
  }
  
  .login-subtitle {
    font-size: 0.813rem;
  }
  
  .background-animation {
    display: none;
  }
  
  .messages-container {
    margin-bottom: var(--login-space-md);
  }
  
  .message {
    padding: var(--login-space-sm);
    flex-direction: column;
    text-align: center;
    gap: var(--login-space-xs);
  }
  
  .message-icon {
    margin-right: 0;
    margin-bottom: var(--login-space-xs);
  }
  
  .message-close {
    position: absolute;
    top: var(--login-space-xs);
    right: var(--login-space-xs);
    margin-left: 0;
  }
  
  .invite-login-banner {
    padding: var(--login-space-md);
    margin-bottom: var(--login-space-md);
  }
  
  .invite-banner-content {
    flex-direction: column;
    text-align: center;
    gap: var(--login-space-sm);
  }
  
  .invite-icon {
    align-self: center;
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
  }
  
  .invite-details h4 {
    font-size: 1rem;
  }
  
  .form-group {
    margin-bottom: var(--login-space-md);
  }
  
  .form-input {
    padding: var(--login-space-sm);
    font-size: 0.9375rem;
  }
  
  .form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--login-space-sm);
  }
  
  .submit-btn,
  .register-link {
    padding: var(--login-space-md);
    font-size: 0.9375rem;
  }
  
  .social-buttons {
    flex-direction: column;
  }
  
  .social-btn {
    padding: var(--login-space-md);
  }
  
  .security-notice {
    padding: var(--login-space-sm);
    font-size: 0.688rem;
    flex-direction: column;
    text-align: center;
    gap: var(--login-space-xs);
  }
  
  .social-divider {
    margin-bottom: var(--login-space-md);
  }
}

/* Extra Small Mobile (below 360px) */
@media (max-width: 359px) {
  .login-container {
    padding: var(--login-space-md);
  }
  
  .login-header h2 {
    font-size: 1.25rem;
  }
  
  .form-input {
    padding: 0.75rem;
    font-size: 0.875rem;
  }
  
  .submit-btn,
  .register-link {
    padding: 0.875rem;
    font-size: 0.875rem;
  }
  
  .divider span {
    padding: 0 var(--login-space-sm);
  }
}

/* ===== ACCESSIBILITY ===== */

/* Focus styles for keyboard navigation */
.form-input:focus-visible,
.submit-btn:focus-visible,
.register-link:focus-visible,
.social-btn:focus-visible,
.forgot-password:focus-visible {
  outline: 3px solid var(--login-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2);
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .login-container {
    border: 2px solid var(--login-text-primary);
  }
  
  .form-input {
    border-width: 2px;
  }
  
  .submit-btn,
  .register-link,
  .social-btn {
    border-width: 2px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .shape,
  .particle {
    animation: none;
  }
  
  .submit-btn::before,
  .register-link::before,
  .social-btn::before {
    display: none;
  }
  
  .submit-btn:hover,
  .register-link:hover,
  .social-btn:hover {
    transform: none;
  }
  
  .invite-login-banner {
    animation: none;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .login-wrapper {
    background: white !important;
  }
  
  .background-animation,
  .shape,
  .particle {
    display: none;
  }
  
  .login-container {
    box-shadow: none;
    border: 1px solid #ddd;
    background: white;
  }
  
  .submit-btn,
  .register-link,
  .social-btn {
    background: #f0f0f0 !important;
    color: black !important;
    border: 1px solid #ddd !important;
  }
  
  .forgot-password {
    color: black !important;
  }
}

/* ===== LOADING STATES ===== */

/* Skeleton loading for initial load */
@keyframes skeleton-loading {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

.skeleton {
  background: linear-gradient(90deg, var(--login-border) 25%, var(--login-bg-secondary) 50%, var(--login-border) 75%);
  background-size: 200px 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--login-radius-md);
}

/* ===== CUSTOM SCROLLBAR ===== */
.login-container::-webkit-scrollbar {
  width: 8px;
}

.login-container::-webkit-scrollbar-track {
  background: transparent;
  border-radius: var(--login-radius-full);
}

.login-container::-webkit-scrollbar-thumb {
  background: var(--login-border);
  border-radius: var(--login-radius-full);
  transition: background var(--login-transition-fast);
}

.login-container::-webkit-scrollbar-thumb:hover {
  background: var(--login-primary);
}

/* ===== PARTICLE GENERATION (Dynamic) ===== */
/* This would be handled by JavaScript, but here's the CSS */

/* ===== ERROR STATE ENHANCEMENTS ===== */
.form-group.invalid .form-input:focus {
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

/* Shake animation for invalid inputs */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

.form-group.invalid .form-input {
  animation: shake 0.5s ease-in-out;
}

/* ===== SUCCESS STATE ENHANCEMENTS ===== */
.form-group.valid .form-input:focus {
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

/* ===== TOOLTIP STYLES ===== */
.tooltip {
  position: absolute;
  background: var(--login-text-primary);
  color: white;
  padding: var(--login-space-xs) var(--login-space-sm);
  border-radius: var(--login-radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  z-index: 1000;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(5px);
  transition: all var(--login-transition-fast);
}

.tooltip.show {
  opacity: 1;
  transform: translateY(0);
}

.tooltip::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid var(--login-text-primary);
}

/* ===== GLASS MORPHISM EFFECTS ===== */
.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.login-container,
.form-input,
.submit-btn,
.register-link,
.social-btn {
  will-change: transform, opacity;
  backface-visibility: hidden;
  transform: translateZ(0);
}

/* ===== END OF LOGIN.CSS ===== */