/* AntiGPT Design System - CSS Variables & Custom Styles */

:root {
  /* Primary Colors - Blue */
  --tg-primary-blue: #3B6B9B;
  --tg-primary-blue-light: #5A8EBF;
  --tg-primary-blue-dark: #2A4F73;
  --tg-primary-blue-darker: #1C3A54;

  /* Accent Colors - Green */
  --tg-accent-green: #4A9B7F;
  --tg-accent-green-light: #E8F5F0;
  --tg-accent-green-dark: #357A63;

  /* Secondary Colors */
  --tg-yellow-light: #FEF9E7;
  --tg-yellow: #E5B94E;
  --tg-orange-light: #FFF4E6;
  --tg-orange: #E8923A;
  --tg-purple: #7C6AB5;
  --tg-purple-light: #F3F0FF;

  /* Backgrounds & Surfaces */
  --tg-bg-main: #F5F7FA;
  --tg-bg-surface: #FFFFFF;

  /* Text Colors */
  --tg-text-primary: #2D3748;
  --tg-text-secondary: #64748B;
  --tg-text-muted: #94A3B8;

  /* Borders */
  --tg-border-main: #E2E8F0;
  --tg-border-light: #F1F5F9;

  /* Status Colors */
  --tg-success: #10b981;
  --tg-warning: #f59e0b;
  --tg-danger: #ef4444;
  --tg-info: #3b82f6;

  /* Spacing */
  --tg-radius-sm: 6px;
  --tg-radius-md: 12px;
  --tg-radius-lg: 16px;

  /* Shadows */
  --tg-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --tg-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --tg-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --tg-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Base Reset & Typography */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--tg-text-primary);
  background-color: var(--tg-bg-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--tg-text-primary);
  margin-bottom: 0.75rem;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--tg-text-secondary);
}

a {
  color: var(--tg-primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--tg-primary-blue-light);
}

code, pre {
  font-family: 'Monaco', 'Courier New', monospace;
  background-color: var(--tg-bg-main);
  padding: 2px 6px;
  border-radius: var(--tg-radius-sm);
  font-size: 0.875rem;
}

/* Color Utility Classes */
.text-primary-blue {
  color: var(--tg-primary-blue);
}

.text-primary-blue-light {
  color: var(--tg-primary-blue-light);
}

.text-accent-green {
  color: var(--tg-accent-green);
}

.text-success {
  color: var(--tg-success);
}

.text-warning {
  color: var(--tg-warning);
}

.text-danger {
  color: var(--tg-danger);
}

.text-muted {
  color: var(--tg-text-muted);
}

.bg-primary-blue {
  background-color: var(--tg-primary-blue);
}

.bg-primary-blue-light {
  background-color: var(--tg-primary-blue-light);
}

.bg-accent-green {
  background-color: var(--tg-accent-green);
}

.bg-accent-green-light {
  background-color: var(--tg-accent-green-light);
}

.bg-yellow-light {
  background-color: var(--tg-yellow-light);
}

.bg-orange-light {
  background-color: var(--tg-orange-light);
}

.bg-purple-light {
  background-color: var(--tg-purple-light);
}

/* Card Styles */
.tg-card {
  background-color: var(--tg-bg-surface);
  border: 1px solid var(--tg-border-main);
  border-radius: var(--tg-radius-md);
  padding: 1.5rem;
  box-shadow: var(--tg-shadow-sm);
  transition: all 0.3s ease;
}

.tg-card:hover {
  box-shadow: var(--tg-shadow-md);
  border-color: var(--tg-border-main);
}

.tg-card.tg-card-accent {
  border-color: var(--tg-accent-green);
}

.tg-card.tg-card-primary {
  border-color: var(--tg-primary-blue);
}

.tg-card.tg-card-elevated {
  box-shadow: var(--tg-shadow-lg);
}

/* Button Styles */
.btn-tg-primary {
  background-color: var(--tg-primary-blue);
  border-color: var(--tg-primary-blue);
  color: white;
  font-weight: 500;
  padding: 0.625rem 1.25rem;
  border-radius: var(--tg-radius-md);
  transition: all 0.2s ease;
}

.btn-tg-primary:hover {
  background-color: var(--tg-primary-blue-dark);
  border-color: var(--tg-primary-blue-dark);
  color: white;
}

.btn-tg-primary:active {
  background-color: var(--tg-primary-blue-darker);
  border-color: var(--tg-primary-blue-darker);
}

.btn-tg-primary:disabled {
  background-color: var(--tg-text-muted);
  border-color: var(--tg-text-muted);
  opacity: 0.6;
}

.btn-tg-accent {
  background-color: var(--tg-accent-green);
  border-color: var(--tg-accent-green);
  color: white;
  font-weight: 500;
  padding: 0.625rem 1.25rem;
  border-radius: var(--tg-radius-md);
  transition: all 0.2s ease;
}

.btn-tg-accent:hover {
  background-color: var(--tg-accent-green-dark);
  border-color: var(--tg-accent-green-dark);
  color: white;
}

.btn-tg-accent:active {
  background-color: #2a5c49;
  border-color: #2a5c49;
}

.btn-tg-outline {
  background-color: transparent;
  border: 1.5px solid var(--tg-primary-blue);
  color: var(--tg-primary-blue);
  font-weight: 500;
  padding: 0.625rem 1.25rem;
  border-radius: var(--tg-radius-md);
  transition: all 0.2s ease;
}

.btn-tg-outline:hover {
  background-color: var(--tg-primary-blue);
  color: white;
}

.btn-tg-outline:active {
  background-color: var(--tg-primary-blue-dark);
  border-color: var(--tg-primary-blue-dark);
  color: white;
}

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1.125rem;
}

/* Form Styling */
.form-control,
.form-select,
.form-check-input {
  border: 1px solid var(--tg-border-main);
  border-radius: var(--tg-radius-md);
  font-family: 'Inter', sans-serif;
  color: var(--tg-text-primary);
  transition: border-color 0.2s ease;
}

.form-control {
  padding: 0.625rem 0.875rem;
  background-color: var(--tg-bg-surface);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--tg-primary-blue);
  box-shadow: 0 0 0 0.2rem rgba(59, 107, 155, 0.15);
}

.form-label {
  color: var(--tg-text-primary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-text {
  color: var(--tg-text-muted);
  font-size: 0.875rem;
}

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  border: 1px solid var(--tg-border-main);
  accent-color: var(--tg-primary-blue);
}

.form-check-input:checked {
  background-color: var(--tg-primary-blue);
  border-color: var(--tg-primary-blue);
}

.form-check-input:focus {
  box-shadow: 0 0 0 0.2rem rgba(59, 107, 155, 0.15);
}

.form-group {
  margin-bottom: 1.5rem;
}

/* Badge Styles */
.badge-tg-verified {
  background-color: var(--tg-accent-green);
  color: white;
  font-weight: 500;
  padding: 0.35rem 0.65rem;
  border-radius: var(--tg-radius-sm);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-tg-unverified {
  background-color: var(--tg-warning);
  color: white;
  font-weight: 500;
  padding: 0.35rem 0.65rem;
  border-radius: var(--tg-radius-sm);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-tg-attention {
  background-color: var(--tg-danger);
  color: white;
  font-weight: 500;
  padding: 0.35rem 0.65rem;
  border-radius: var(--tg-radius-sm);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-tg-info {
  background-color: var(--tg-primary-blue);
  color: white;
  font-weight: 500;
  padding: 0.35rem 0.65rem;
  border-radius: var(--tg-radius-sm);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Score Bar Component */
.score-bar-wrap {
  width: 100%;
  height: 32px;
  background-color: var(--tg-border-light);
  border-radius: var(--tg-radius-md);
  overflow: hidden;
  position: relative;
}

.score-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  border-radius: var(--tg-radius-md);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 600;
  font-size: 0.875rem;
  color: white;
  padding-right: 0.75rem;
}

.score-bar-fill {
  background: linear-gradient(90deg, var(--tg-primary-blue), var(--tg-primary-blue-light));
}

.score-bar-fill.score-low {
  background: linear-gradient(90deg, var(--tg-danger), #fc8181);
  width: 25%;
}

.score-bar-fill.score-medium {
  background: linear-gradient(90deg, var(--tg-warning), #fbbf24);
  width: 50%;
}

.score-bar-fill.score-high {
  background: linear-gradient(90deg, var(--tg-accent-green), #6ee7b7);
  width: 75%;
}

.score-bar-fill.score-excellent {
  background: linear-gradient(90deg, var(--tg-accent-green-dark), var(--tg-accent-green));
  width: 100%;
}

/* Navigation & Header Customization */
.navbar {
  background-color: var(--tg-bg-surface);
  border-bottom: 1px solid var(--tg-border-main);
  box-shadow: var(--tg-shadow-sm);
  padding: 1rem 0;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--tg-primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

.navbar-brand:hover {
  color: var(--tg-primary-blue-dark);
}

.nav-link {
  color: var(--tg-text-secondary);
  font-weight: 500;
  margin: 0 0.5rem;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--tg-primary-blue);
}

.nav-link.active {
  color: var(--tg-primary-blue);
  border-bottom: 2px solid var(--tg-primary-blue);
  padding-bottom: 0.25rem;
}

.dropdown-menu {
  border: 1px solid var(--tg-border-main);
  box-shadow: var(--tg-shadow-lg);
  border-radius: var(--tg-radius-md);
}

.dropdown-item {
  color: var(--tg-text-primary);
  transition: all 0.2s ease;
}

.dropdown-item:hover {
  background-color: var(--tg-bg-main);
  color: var(--tg-primary-blue);
}

.dropdown-divider {
  border-color: var(--tg-border-light);
}

/* Metric Card Component */
.metric-card {
  background-color: var(--tg-bg-surface);
  border: 1px solid var(--tg-border-main);
  border-radius: var(--tg-radius-md);
  padding: 1.25rem;
  box-shadow: var(--tg-shadow-sm);
  text-align: center;
}

.metric-card-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--tg-primary-blue);
  margin: 0.5rem 0;
}

.metric-card-label {
  font-size: 0.875rem;
  color: var(--tg-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 0.5rem;
}

.metric-card.metric-accent .metric-card-value {
  color: var(--tg-accent-green);
}

/* Highlight Classes for Text/Content */
.highlight-template {
  background-color: var(--tg-yellow-light);
  padding: 2px 6px;
  border-radius: var(--tg-radius-sm);
  border-left: 3px solid var(--tg-yellow);
}

.highlight-complex {
  background-color: var(--tg-primary-blue-light);
  color: white;
  padding: 2px 6px;
  border-radius: var(--tg-radius-sm);
  border-left: 3px solid var(--tg-primary-blue-dark);
}

.highlight-fact {
  background-color: var(--tg-orange-light);
  padding: 2px 6px;
  border-radius: var(--tg-radius-sm);
  border-left: 3px solid var(--tg-orange);
}

/* Disclaimer Banner */
.disclaimer-banner {
  background-color: var(--tg-purple-light);
  border: 1px solid var(--tg-purple);
  border-radius: var(--tg-radius-md);
  padding: 1rem;
  margin: 1.5rem 0;
  color: var(--tg-text-primary);
}

.disclaimer-banner-title {
  font-weight: 600;
  color: var(--tg-purple);
  margin-bottom: 0.5rem;
}

.disclaimer-banner-content {
  font-size: 0.9375rem;
  color: var(--tg-text-secondary);
}

/* Sidebar Styles for Legal Pages */
.legal-sidebar {
  position: sticky;
  top: 2rem;
  background-color: var(--tg-bg-surface);
  border: 1px solid var(--tg-border-main);
  border-radius: var(--tg-radius-md);
  padding: 1.5rem;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
}

.legal-sidebar-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--tg-text-primary);
  margin-bottom: 1rem;
}

.legal-sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.legal-sidebar-nav li {
  margin-bottom: 0.5rem;
}

.legal-sidebar-nav a {
  display: block;
  padding: 0.5rem 0;
  color: var(--tg-text-secondary);
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
  transition: all 0.2s ease;
}

.legal-sidebar-nav a:hover,
.legal-sidebar-nav a.active {
  color: var(--tg-primary-blue);
  border-left-color: var(--tg-primary-blue);
}

/* Loading Spinner */
.spinner-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 200px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--tg-border-light);
  border-top-color: var(--tg-primary-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.spinner-sm {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

.spinner-lg {
  width: 64px;
  height: 64px;
  border-width: 5px;
}

/* Flash Message Styles */
.flash-message {
  padding: 1rem;
  margin: 1rem 0;
  border-radius: var(--tg-radius-md);
  border-left: 4px solid;
  animation: slideIn 0.3s ease-out;
}

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

.flash-success {
  background-color: #d1fae5;
  border-color: var(--tg-accent-green);
  color: var(--tg-accent-green-dark);
}

.flash-error {
  background-color: #fee2e2;
  border-color: var(--tg-danger);
  color: #991b1b;
}

.flash-warning {
  background-color: #fef3c7;
  border-color: var(--tg-warning);
  color: #92400e;
}

.flash-info {
  background-color: #dbeafe;
  border-color: var(--tg-info);
  color: #1e40af;
}

.flash-close {
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.flash-close:hover {
  opacity: 1;
}

/* Footer Styling */
footer {
  background-color: var(--tg-bg-surface);
  border-top: 1px solid var(--tg-border-main);
  margin-top: 3rem;
  padding: 2rem 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section-title {
  font-weight: 600;
  color: var(--tg-text-primary);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--tg-text-secondary);
  font-size: 0.9375rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--tg-primary-blue);
}

.footer-bottom {
  border-top: 1px solid var(--tg-border-light);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--tg-text-muted);
  font-size: 0.875rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .legal-sidebar {
    position: static;
    max-height: none;
    margin-bottom: 2rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .metric-card {
    margin-bottom: 1rem;
  }

  .btn-tg-primary,
  .btn-tg-accent,
  .btn-tg-outline {
    width: 100%;
    display: block;
    margin-bottom: 0.5rem;
  }
}

@media (max-width: 576px) {
  body {
    font-size: 15px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  .tg-card {
    padding: 1rem;
  }

  .metric-card-value {
    font-size: 2rem;
  }

  .navbar {
    padding: 0.75rem 0;
  }

  .nav-link {
    margin: 0.25rem 0;
  }
}

/* Additional Utility Classes */
.rounded-tg-sm {
  border-radius: var(--tg-radius-sm);
}

.rounded-tg-md {
  border-radius: var(--tg-radius-md);
}

.rounded-tg-lg {
  border-radius: var(--tg-radius-lg);
}

.shadow-tg-sm {
  box-shadow: var(--tg-shadow-sm);
}

.shadow-tg-md {
  box-shadow: var(--tg-shadow-md);
}

.shadow-tg-lg {
  box-shadow: var(--tg-shadow-lg);
}

.shadow-tg-xl {
  box-shadow: var(--tg-shadow-xl);
}

.border-tg-main {
  border: 1px solid var(--tg-border-main);
}

.border-tg-light {
  border: 1px solid var(--tg-border-light);
}

/* Link Variants */
.link-primary {
  color: var(--tg-primary-blue);
}

.link-primary:hover {
  color: var(--tg-primary-blue-dark);
}

.link-accent {
  color: var(--tg-accent-green);
}

.link-accent:hover {
  color: var(--tg-accent-green-dark);
}

/* Divider */
.divider {
  height: 1px;
  background-color: var(--tg-border-main);
  margin: 1.5rem 0;
}

/* Small Spacing Classes */
.gap-tg-sm {
  gap: 0.5rem;
}

.gap-tg-md {
  gap: 1rem;
}

.gap-tg-lg {
  gap: 1.5rem;
}

/* ==========================================================================
   LANDING PAGE STYLES
   Scoped under .landing-page to avoid conflicts with Bootstrap on other pages
   ========================================================================== */

.landing-page {
  overflow-x: hidden;
}

/* Landing Nav */
.landing-page .landing-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 2rem;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.3s;
  background: transparent;
}
.landing-page .landing-nav.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border-bottom: 1px solid var(--tg-border-main);
}
.landing-page .nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: white;
  transition: color 0.3s;
}
.landing-page .landing-nav.scrolled .nav-brand { color: var(--tg-primary-blue); }
.landing-page .nav-brand svg { width: 30px; height: 30px; }
.landing-page .nav-brand span { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.02em; }

.landing-page .nav-center {
  display: flex;
  gap: 6px;
  list-style: none;
}
.landing-page .nav-center a {
  text-decoration: none;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s;
}
.landing-page .nav-center a:hover { color: white; background: rgba(255,255,255,0.12); }
.landing-page .landing-nav.scrolled .nav-center a { color: var(--tg-text-secondary); }
.landing-page .landing-nav.scrolled .nav-center a:hover { color: var(--tg-primary-blue); background: rgba(59,107,155,0.08); }

.landing-page .nav-right { display: flex; gap: 10px; align-items: center; }
.landing-page .btn-nav-login {
  background: none;
  border: 1.5px solid rgba(255,255,255,0.4);
  color: white;
  padding: 8px 20px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.landing-page .btn-nav-login:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.7); color: white; }
.landing-page .landing-nav.scrolled .btn-nav-login { border-color: var(--tg-border-main); color: var(--tg-text-secondary); }
.landing-page .landing-nav.scrolled .btn-nav-login:hover { border-color: var(--tg-primary-blue); color: var(--tg-primary-blue); }

.landing-page .btn-nav-register {
  background: white;
  color: var(--tg-primary-blue-dark);
  border: none;
  padding: 8px 20px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.landing-page .btn-nav-register:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); color: var(--tg-primary-blue-dark); }
.landing-page .landing-nav.scrolled .btn-nav-register { background: var(--tg-primary-blue); color: white; }

/* Landing Hero */
.landing-page .hero {
  background: linear-gradient(160deg, var(--tg-primary-blue-darker) 0%, var(--tg-primary-blue) 40%, var(--tg-primary-blue-light) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 6rem 2rem 4rem;
}
.landing-page .hero::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,155,127,0.15) 0%, transparent 70%);
}
.landing-page .hero::after {
  content: '';
  position: absolute;
  bottom: -15%; left: -5%;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(90,142,191,0.2) 0%, transparent 70%);
}
.landing-page .hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.landing-page .hero-inner {
  max-width: 1100px;
  width: 100%;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.landing-page .hero-text h1 {
  font-size: 3rem;
  font-weight: 800;
  color: white;
  line-height: 1.15;
  letter-spacing: -0.04em;
  margin-bottom: 1.25rem;
}
.landing-page .hero-text h1 .highlight {
  background: linear-gradient(90deg, #7DD3B8, #A8E6CF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.landing-page .hero-text p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 480px;
}

.landing-page .hero-badges {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.landing-page .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  border-radius: 24px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.9);
  font-weight: 500;
}
.landing-page .hero-badge svg { width: 16px; height: 16px; opacity: 0.8; }

.landing-page .hero-cta { display: flex; gap: 14px; align-items: center; }
.landing-page .btn-hero-primary {
  background: white;
  color: var(--tg-primary-blue-dark);
  border: none;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.landing-page .btn-hero-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.2); color: var(--tg-primary-blue-dark); }
.landing-page .btn-hero-primary svg { width: 18px; height: 18px; }
.landing-page .btn-hero-secondary {
  background: none;
  border: 1.5px solid rgba(255,255,255,0.35);
  color: white;
  padding: 14px 28px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.landing-page .btn-hero-secondary:hover { border-color: rgba(255,255,255,0.65); background: rgba(255,255,255,0.08); color: white; }

/* Hero visual — floating UI mockup */
.landing-page .hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.landing-page .hero-card {
  background: white;
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.14);
  padding: 1.75rem;
  width: 100%;
  max-width: 420px;
  transform: perspective(800px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.4s;
}
.landing-page .hero-card:hover { transform: perspective(800px) rotateY(0) rotateX(0); }

.landing-page .hc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}
.landing-page .hc-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--tg-text-primary);
}
.landing-page .hc-badge {
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--tg-accent-green-light);
  color: var(--tg-accent-green-dark);
  padding: 4px 10px;
  border-radius: 12px;
}

.landing-page .hc-metrics { display: flex; flex-direction: column; gap: 12px; }
.landing-page .hc-metric {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--tg-bg-main);
  border-radius: 8px;
}
.landing-page .hc-metric-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.landing-page .hc-metric-icon svg { width: 18px; height: 18px; }
.landing-page .hc-metric-icon.mi-blue { background: #EBF4FF; color: var(--tg-primary-blue); }
.landing-page .hc-metric-icon.mi-yellow { background: var(--tg-yellow-light); color: var(--tg-yellow); }
.landing-page .hc-metric-icon.mi-green { background: var(--tg-accent-green-light); color: var(--tg-accent-green); }
.landing-page .hc-metric-icon.mi-orange { background: var(--tg-orange-light); color: var(--tg-orange); }

.landing-page .hc-metric-info { flex: 1; }
.landing-page .hc-metric-label { font-size: 0.78rem; color: var(--tg-text-muted); }
.landing-page .hc-metric-bar { height: 6px; background: var(--tg-border-light); border-radius: 3px; margin-top: 4px; overflow: hidden; }
.landing-page .hc-metric-fill { height: 100%; border-radius: 3px; }
.landing-page .hc-metric-val { font-size: 0.85rem; font-weight: 700; min-width: 36px; text-align: right; }

/* Floating badges on hero card */
.landing-page .hero-float {
  position: absolute;
  background: white;
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  padding: 10px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: landingFloat 3s ease-in-out infinite;
}
.landing-page .hero-float svg { width: 18px; height: 18px; }
.landing-page .hf-top { top: -10px; right: -30px; color: var(--tg-accent-green-dark); animation-delay: 0.5s; }
.landing-page .hf-bottom { bottom: 20px; left: -40px; color: var(--tg-primary-blue); animation-delay: 1.2s; }

@keyframes landingFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Landing Features */
.landing-page .landing-features {
  padding: 6rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.landing-page .section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.landing-page .section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tg-accent-green);
  background: var(--tg-accent-green-light);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 1rem;
}
.landing-page .section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  color: var(--tg-text-primary);
}
.landing-page .section-header p {
  font-size: 1.05rem;
  color: var(--tg-text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

.landing-page .features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.landing-page .feature-card {
  background: var(--tg-bg-surface);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid transparent;
}
.landing-page .feature-card:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  transform: translateY(-4px);
  border-color: var(--tg-border-main);
}
.landing-page .feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.landing-page .feature-icon svg { width: 26px; height: 26px; }
.landing-page .fi-blue { background: #EBF4FF; color: var(--tg-primary-blue); }
.landing-page .fi-green { background: var(--tg-accent-green-light); color: var(--tg-accent-green); }
.landing-page .fi-yellow { background: var(--tg-yellow-light); color: var(--tg-yellow); }
.landing-page .fi-orange { background: var(--tg-orange-light); color: var(--tg-orange); }
.landing-page .fi-purple { background: #F3F0FF; color: #7C6AB5; }
.landing-page .fi-teal { background: #E0F7F4; color: #2E8B7A; }

.landing-page .feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--tg-text-primary);
}
.landing-page .feature-card p {
  font-size: 0.9rem;
  color: var(--tg-text-secondary);
  line-height: 1.6;
}

/* Landing Principles */
.landing-page .principles {
  background: linear-gradient(160deg, var(--tg-primary-blue-darker) 0%, var(--tg-primary-blue) 100%);
  padding: 6rem 2rem;
}
.landing-page .principles-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.landing-page .principles .section-header h2 { color: white; }
.landing-page .principles .section-header p { color: rgba(255,255,255,0.7); }
.landing-page .principles .section-label { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.85); }

.landing-page .principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.landing-page .principle-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(8px);
  transition: all 0.3s;
}
.landing-page .principle-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-3px);
}
.landing-page .principle-emoji {
  font-size: 2rem;
  margin-bottom: 1rem;
  width: 52px; height: 52px;
  background: rgba(255,255,255,0.1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.landing-page .principle-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.6rem;
}
.landing-page .principle-card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}

/* Landing How It Works */
.landing-page .how-it-works {
  padding: 6rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}
.landing-page .steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
.landing-page .steps::before {
  content: '';
  position: absolute;
  left: 27px;
  top: 36px;
  bottom: 36px;
  width: 2px;
  background: var(--tg-border-main);
}
.landing-page .step-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 24px 0;
  position: relative;
}
.landing-page .step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--tg-bg-surface);
  border: 2px solid var(--tg-primary-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--tg-primary-blue);
  flex-shrink: 0;
  z-index: 2;
  box-shadow: 0 0 0 6px var(--tg-bg-main);
}
.landing-page .step-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.landing-page .step-content p {
  font-size: 0.92rem;
  color: var(--tg-text-secondary);
  line-height: 1.6;
}

/* Landing Auth Section */
.landing-page .auth-section {
  padding: 6rem 2rem;
  background: var(--tg-border-light);
}
.landing-page .auth-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.landing-page .auth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.landing-page .auth-card {
  background: var(--tg-bg-surface);
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.landing-page .auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
}
.landing-page .auth-card.login-card::before { background: var(--tg-primary-blue); }
.landing-page .auth-card.register-card::before { background: var(--tg-accent-green); }

.landing-page .auth-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.landing-page .auth-card .auth-subtitle {
  font-size: 0.9rem;
  color: var(--tg-text-secondary);
  margin-bottom: 1.75rem;
}

.landing-page .landing-form-group {
  margin-bottom: 1.1rem;
}
.landing-page .landing-form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--tg-text-secondary);
  margin-bottom: 6px;
}
.landing-page .landing-form-group input,
.landing-page .landing-form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--tg-border-main);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--tg-text-primary);
  background: var(--tg-bg-main);
  transition: border-color 0.2s, background 0.2s;
}
.landing-page .landing-form-group input:focus,
.landing-page .landing-form-group select:focus {
  outline: none;
  border-color: var(--tg-primary-blue-light);
  background: white;
}
.landing-page .landing-form-group input::placeholder { color: var(--tg-text-muted); }

.landing-page .landing-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.landing-page .landing-form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 1rem 0;
}
.landing-page .landing-form-check input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--tg-primary-blue);
  cursor: pointer;
}
.landing-page .landing-form-check label {
  font-size: 0.85rem;
  color: var(--tg-text-secondary);
  cursor: pointer;
}
.landing-page .landing-form-check a {
  color: var(--tg-primary-blue);
  text-decoration: none;
}
.landing-page .landing-form-check a:hover { text-decoration: underline; }

.landing-page .forgot-link {
  display: block;
  text-align: right;
  font-size: 0.82rem;
  color: var(--tg-primary-blue);
  text-decoration: none;
  margin-top: -4px;
  margin-bottom: 1rem;
}
.landing-page .forgot-link:hover { text-decoration: underline; }

.landing-page .btn-auth {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.landing-page .btn-auth svg { width: 18px; height: 18px; }
.landing-page .btn-login {
  background: var(--tg-primary-blue);
  color: white;
  box-shadow: 0 2px 10px rgba(59,107,155,0.3);
}
.landing-page .btn-login:hover { background: var(--tg-primary-blue-dark); box-shadow: 0 4px 18px rgba(59,107,155,0.35); transform: translateY(-1px); }
.landing-page .btn-register {
  background: var(--tg-accent-green);
  color: white;
  box-shadow: 0 2px 10px rgba(74,155,127,0.3);
}
.landing-page .btn-register:hover { background: var(--tg-accent-green-dark); box-shadow: 0 4px 18px rgba(74,155,127,0.35); transform: translateY(-1px); }

.landing-page .auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 1.25rem 0;
}
.landing-page .auth-divider::before,
.landing-page .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--tg-border-main);
}
.landing-page .auth-divider span { font-size: 0.8rem; color: var(--tg-text-muted); white-space: nowrap; }

.landing-page .btn-social {
  width: 100%;
  padding: 11px;
  border: 1.5px solid var(--tg-border-main);
  border-radius: 8px;
  background: var(--tg-bg-surface);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--tg-text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}
.landing-page .btn-social:hover { border-color: var(--tg-primary-blue-light); color: var(--tg-primary-blue); background: #EBF4FF; }
.landing-page .btn-social svg { width: 18px; height: 18px; }

/* Landing Footer */
.landing-page .landing-footer {
  background: var(--tg-primary-blue-darker);
  color: rgba(255,255,255,0.6);
  padding: 3rem 2rem 2rem;
  margin-top: 0;
  border-top: none;
}
.landing-page .landing-footer .footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}
.landing-page .footer-brand span { font-weight: 700; font-size: 1.1rem; color: white; }
.landing-page .footer-brand p { font-size: 0.85rem; margin-top: 6px; max-width: 280px; color: rgba(255,255,255,0.6); }
.landing-page .landing-footer .landing-footer-links h4 { color: rgba(255,255,255,0.8); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 10px; }
.landing-page .landing-footer .landing-footer-links a { display: block; color: rgba(255,255,255,0.5); text-decoration: none; font-size: 0.88rem; padding: 4px 0; transition: color 0.2s; }
.landing-page .landing-footer .landing-footer-links a:hover { color: white; }
.landing-page .landing-footer .landing-footer-bottom {
  max-width: 1100px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: 1rem;
  text-align: left;
  color: rgba(255,255,255,0.5);
}
.landing-page .landing-footer .landing-footer-bottom a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}
.landing-page .landing-footer .landing-footer-bottom a:hover { color: white; }

/* Landing Modal Overlay */
.landing-page .modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.landing-page .modal-overlay.active { display: flex; }
.landing-page .landing-modal {
  background: var(--tg-bg-surface);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.14);
  padding: 2.5rem;
  width: 100%;
  max-width: 440px;
  position: relative;
  animation: landingModalIn 0.3s ease;
}
@keyframes landingModalIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.landing-page .modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 32px; height: 32px;
  border: none;
  background: var(--tg-border-light);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tg-text-muted);
  transition: all 0.2s;
}
.landing-page .modal-close:hover { background: var(--tg-border-main); color: var(--tg-text-primary); }
.landing-page .modal-close svg { width: 16px; height: 16px; }
.landing-page .landing-modal h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.3rem; }
.landing-page .landing-modal .auth-subtitle { font-size: 0.9rem; color: var(--tg-text-secondary); margin-bottom: 1.5rem; }

.landing-page .modal-switch {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.88rem;
  color: var(--tg-text-secondary);
}
.landing-page .modal-switch a {
  color: var(--tg-primary-blue);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.landing-page .modal-switch a:hover { text-decoration: underline; }

/* Landing Responsive */
@media (max-width: 900px) {
  .landing-page .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .landing-page .hero-text p { margin: 0 auto 2rem; }
  .landing-page .hero-badges { justify-content: center; }
  .landing-page .hero-cta { justify-content: center; }
  .landing-page .hero-visual { display: none; }
  .landing-page .hero-text h1 { font-size: 2.2rem; }
  .landing-page .features-grid { grid-template-columns: 1fr 1fr; }
  .landing-page .principles-grid { grid-template-columns: 1fr; }
  .landing-page .auth-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .landing-page .nav-center { display: none; }
  .landing-page .features-grid { grid-template-columns: 1fr; }
  .landing-page .hero { padding: 5rem 1.25rem 3rem; }
  .landing-page .hero-text h1 { font-size: 1.8rem; }
  .landing-page .landing-features,
  .landing-page .how-it-works,
  .landing-page .auth-section { padding: 3.5rem 1.25rem; }
  .landing-page .auth-card { padding: 1.75rem; }
  .landing-page .landing-form-row { grid-template-columns: 1fr; }
  .landing-page .landing-footer .footer-inner { flex-direction: column; }
}