/* StretchStrong Authentication Styles */

:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary-color: #64748b;
  --success-color: #059669;
  --error-color: #dc2626;
  --warning-color: #d97706;
  
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.5;
  color: var(--text-primary);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Authentication Container */
.auth-container {
  width: 100%;
  max-width: 480px;
  padding: 2rem;
  position: relative;
}

.auth-form {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 3rem;
  display: none;
  animation: slideUp 0.3s ease-out;
}

.auth-form.active {
  display: block;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Auth Header */
.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.logo i {
  font-size: 2rem;
  color: var(--primary-color);
}

.logo span {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.auth-header h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

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

/* Form Styles */
.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-primary);
}

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

.input-group i {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  z-index: 1;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  transition: all 0.2s ease;
  background: var(--bg-primary);
}

.input-group input:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

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

.password-toggle {
  position: absolute;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: color 0.2s ease;
}

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

/* Password Requirements */
.password-requirements {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.requirement {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.requirement.valid {
  color: var(--success-color);
}

.requirement.valid::before {
  content: '✓';
  color: var(--success-color);
  font-weight: bold;
}

.requirement::before {
  content: '○';
  color: var(--text-muted);
}

/* Form Options */
.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: -0.5rem 0;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
  position: relative;
}

.checkbox input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.checkbox input[type="checkbox"]:checked + .checkmark {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.checkbox input[type="checkbox"]:checked + .checkmark::after {
  content: '✓';
  color: white;
  font-size: 0.75rem;
  font-weight: bold;
}

.forgot-link {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
}

.forgot-link:hover {
  text-decoration: underline;
}

/* Level Selector */
.level-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.level-selector input[type="radio"] {
  display: none;
}

.level-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.level-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-secondary);
}

.level-selector input[type="radio"]:checked + .level-card {
  border-color: var(--primary-color);
  background: var(--primary-light);
}

.level-card i {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.level-selector input[type="radio"]:checked + .level-card i {
  color: var(--primary-color);
}

.level-card span {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-primary);
}

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

/* Buttons */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

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

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
  background: var(--primary-color);
  color: white;
}

.full-width {
  width: 100%;
}

.btn-google,
.btn-apple {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  flex: 1;
}

.btn-google:hover,
.btn-apple:hover {
  border-color: var(--border-hover);
  background: var(--bg-secondary);
}

.btn-google i {
  color: #ea4335;
}

.btn-apple i {
  color: var(--text-primary);
}

/* Auth Divider */
.auth-divider {
  position: relative;
  text-align: center;
  margin: 1rem 0;
}

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

.auth-divider span {
  background: var(--bg-primary);
  padding: 0 1rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Social Auth */
.social-auth {
  display: flex;
  gap: 1rem;
}

/* Auth Switch */
.auth-switch {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.auth-switch a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

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

/* Auth Messages */
.auth-message {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 1rem 1.5rem;
  display: none;
  z-index: 1000;
  max-width: 400px;
  animation: slideIn 0.3s ease-out;
}

.auth-message.success {
  border-left: 4px solid var(--success-color);
  display: block;
}

.auth-message.error {
  border-left: 4px solid var(--error-color);
  display: block;
}

.message-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.success-icon {
  color: var(--success-color);
  display: none;
}

.error-icon {
  color: var(--error-color);
  display: none;
}

.auth-message.success .success-icon {
  display: block;
}

.auth-message.error .error-icon {
  display: block;
}

.message-text {
  font-size: 0.875rem;
  color: var(--text-primary);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Dashboard Container */
.dashboard-container {
  min-height: 100vh;
  background: var(--bg-secondary);
}

/* Dashboard Header */
.dashboard-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.header-container .logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.header-container .logo i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.header-container .logo span {
  font-size: 1.25rem;
  font-weight: 700;
}

/* Main Navigation */
.main-nav {
  display: flex;
  gap: 0.5rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.875rem;
  font-weight: 500;
}

.nav-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.nav-btn.active {
  background: var(--primary-light);
  color: var(--primary-color);
}

.nav-btn i {
  font-size: 1rem;
}

/* User Menu */
.user-menu {
  position: relative;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.user-info:hover {
  background: var(--bg-secondary);
}

.user-avatar {
  width: 2rem;
  height: 2rem;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.875rem;
}

.user-details {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.user-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

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

.dropdown-arrow {
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.user-menu.active .dropdown-arrow {
  transform: rotate(180deg);
}

/* User Dropdown */
.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  display: none;
  animation: fadeIn 0.2s ease-out;
}

.user-dropdown.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: background-color 0.2s ease;
}

.dropdown-item:hover {
  background: var(--bg-secondary);
}

.dropdown-item.logout {
  color: var(--error-color);
}

.dropdown-item.logout:hover {
  background: #fef2f2;
}

.dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 0.5rem 0;
}

/* Dashboard Main */
.dashboard-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.dashboard-section {
  display: none;
}

.dashboard-section.active {
  display: block;
}

.section-header {
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 3rem;
  height: 3rem;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon i {
  font-size: 1.25rem;
  color: var(--primary-color);
}

.stat-content h3 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-content p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.stat-trend {
  font-size: 0.75rem;
  font-weight: 500;
}

.stat-trend.positive {
  color: var(--success-color);
}

/* Dashboard Cards */
.dashboard-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Profile Grid */
.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
}

.profile-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.profile-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

/* Switch Component */
.switch-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-color);
  transition: 0.2s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.2s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* Loading Overlay */
.loading-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: 9999;
  display: none;
}

.loading-overlay.active {
  display: flex;
}

.loading-spinner {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.loading-spinner i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.loading-spinner p {
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .auth-container {
    padding: 1rem;
  }
  
  .auth-form {
    padding: 2rem 1.5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .level-selector {
    grid-template-columns: 1fr;
  }
  
  .social-auth {
    flex-direction: column;
  }
  
  .header-container {
    padding: 0 1rem;
    flex-wrap: wrap;
    height: auto;
    min-height: 4rem;
  }
  
  .main-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 1px solid var(--border-color);
  }
  
  .dashboard-main {
    padding: 1rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .profile-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .auth-form {
    padding: 1.5rem 1rem;
  }
  
  .nav-btn span {
    display: none;
  }
  
  .user-details {
    display: none;
  }
}