@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* CSS Variables aligned with CDM App theme */
:root {
  /* Brand colors */
  --accent-primary: #0A84FF;       /* AppColors.primary */
  --accent-secondary: #03A9F4;     /* AppColors.primaryLight */
  --accent-orange: #FF9500;        /* AppColors.accent */
  --accent-red: #EE6666;           /* AppColors.chartRed */
  --accent-green: #91CC75;         /* AppColors.chartGreen */

  /* Light Theme (Default) */
  --bg-primary: #F3F3F3;           /* AppColors.background */
  --bg-secondary: #FFFFFF;         /* AppColors.white */
  --bg-tertiary: #E5E5E5;          /* AppColors.lightGrey */
  
  --text-primary: #000000;         /* AppColors.black */
  --text-secondary: #505050;       /* AppColors.textPrimary */
  --text-muted: #A9B9C6;           /* AppColors.textTertiary */
  --border-color: #E5E5E5;         /* AppColors.lightGrey */
  
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(10, 132, 255, 0.04);
  
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark Theme */
    --bg-primary: #121212;           /* AppColors.darkBackground */
    --bg-secondary: #2C2C2F;         /* AppColors.darkSurface */
    --bg-tertiary: #1E1E1E;
    
    --text-primary: #FFFFFF;         /* AppColors.white */
    --text-secondary: #E5E5EA;       /* AppColors.iosGrey */
    --text-muted: #A9B9C6;           /* AppColors.placeholder */
    --border-color: rgba(255, 255, 255, 0.08);
    
    --glass-bg: rgba(44, 44, 47, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  }
}

html[data-theme="dark"] {
  /* Dark Theme */
  --bg-primary: #121212;           /* AppColors.darkBackground */
  --bg-secondary: #2C2C2F;         /* AppColors.darkSurface */
  --bg-tertiary: #1E1E1E;
  
  --text-primary: #FFFFFF;         /* AppColors.white */
  --text-secondary: #E5E5EA;       /* AppColors.iosGrey */
  --text-muted: #A9B9C6;           /* AppColors.placeholder */
  --border-color: rgba(255, 255, 255, 0.08);
  
  --glass-bg: rgba(44, 44, 47, 0.85);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

html[data-theme="light"] {
  /* Light Theme */
  --bg-primary: #F3F3F3;           /* AppColors.background */
  --bg-secondary: #FFFFFF;         /* AppColors.white */
  --bg-tertiary: #E5E5E5;          /* AppColors.lightGrey */
  
  --text-primary: #000000;         /* AppColors.black */
  --text-secondary: #505050;       /* AppColors.textPrimary */
  --text-muted: #A9B9C6;           /* AppColors.textTertiary */
  --border-color: #E5E5E5;         /* AppColors.lightGrey */
  
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(10, 132, 255, 0.04);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  transition: background-color var(--transition-normal);
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Background Glow Effects */
.bg-glow-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(10, 132, 255, 0.08) 0%, rgba(10, 132, 255, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

.bg-glow-2 {
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(255, 149, 0, 0.05) 0%, rgba(255, 149, 0, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

/* Typography & Links */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--accent-secondary);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.logo img {
  height: 32px;
  width: auto;
  border-radius: var(--radius-sm);
}

.logo span {
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Contact button in nav */
.btn-contact {
  background: rgba(10, 132, 255, 0.08);
  border: 1px solid rgba(10, 132, 255, 0.15);
  color: var(--accent-primary) !important;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition-fast);
}

.btn-contact:hover {
  background: rgba(10, 132, 255, 0.15);
  transform: translateY(-1px);
}

/* Main Layout Container */
main {
  padding: 120px 24px 80px;
  max-width: 900px;
  margin: 0 auto;
  min-height: calc(100vh - 160px);
}

/* Header Inside Content */
.legal-header {
  text-align: center;
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.badge {
  background: rgba(10, 132, 255, 0.08);
  border: 1px solid rgba(10, 132, 255, 0.15);
  color: var(--accent-primary);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.legal-header h1 {
  font-size: 38px;
  letter-spacing: -1.2px;
  line-height: 1.2;
}

/* Navigation Tabs */
.tabs-nav {
  display: flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 5px;
  gap: 4px;
  margin-bottom: 40px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
  max-width: 520px;
  width: 100%;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
  text-align: center;
}

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

.tab-btn.active {
  background: var(--accent-primary);
  color: #FFFFFF !important;
  box-shadow: 0 4px 15px rgba(10, 132, 255, 0.25);
}

/* Legal Container (Main Card) */
.legal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--glass-shadow);
  position: relative;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

/* Tab Panels Switching */
.tab-panel {
  display: none;
  animation: fadeIn 0.4s ease-out forwards;
}

.tab-panel.active {
  display: block;
}

.legal-meta {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  transition: border-color var(--transition-normal);
}

.legal-content {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.legal-content h2 {
  color: var(--text-primary);
  font-size: 20px;
  margin: 36px 0 16px;
  border-left: 3.5px solid var(--accent-primary);
  padding-left: 12px;
}

.legal-content p {
  margin-bottom: 16px;
}

.legal-content p strong {
  color: var(--text-primary);
}

.legal-content ul, .legal-content ol {
  margin-bottom: 24px;
  padding-left: 20px;
}

.legal-content li {
  margin-bottom: 8px;
}

.legal-content li strong {
  color: var(--text-primary);
}

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

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 24px;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  color: var(--text-muted);
  font-size: 13px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand img {
  height: 24px;
  border-radius: 4px;
}

.footer-brand span {
  font-weight: 700;
  color: var(--text-primary);
}

/* Language Selector */
.lang-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
}

.lang-link {
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-link:hover, .lang-link.active {
  color: var(--accent-primary);
}

.lang-divider {
  color: var(--border-color);
}

/* Navigation Actions Container */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(10, 132, 255, 0.08);
  color: var(--accent-primary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  transition: transform 0.3s ease;
}

.theme-toggle:hover svg {
  transform: rotate(15deg);
}

/* Hide sun or moon depending on active theme */
html[data-theme="dark"] .theme-toggle .moon-icon {
  display: none;
}
html[data-theme="dark"] .theme-toggle .sun-icon {
  display: block;
}

html[data-theme="light"] .theme-toggle .sun-icon {
  display: none;
}
html[data-theme="light"] .theme-toggle .moon-icon {
  display: block;
}

/* System-based fallback when data-theme is not explicitly set */
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .theme-toggle .moon-icon {
    display: none;
  }
  html:not([data-theme="light"]) .theme-toggle .sun-icon {
    display: block;
  }
}
@media (prefers-color-scheme: light) {
  html:not([data-theme="dark"]) .theme-toggle .sun-icon {
    display: none;
  }
  html:not([data-theme="dark"]) .theme-toggle .moon-icon {
    display: block;
  }
}

/* Default fallback rules */
html:not([data-theme="dark"]):not([data-theme="light"]) .theme-toggle .sun-icon {
  display: none;
}
html:not([data-theme="dark"]):not([data-theme="light"]) .theme-toggle .moon-icon {
  display: block;
}

/* Responsiveness */
@media (max-width: 768px) {
  main {
    padding: 100px 16px 60px;
  }
  
  .legal-card {
    padding: 28px 20px;
  }
  
  .legal-header h1 {
    font-size: 32px;
  }
  
  .tab-btn {
    padding: 10px 16px;
    font-size: 14px;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
}