/* Design Tokens & Theme Variables */
:root {
  --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Material 3 Dark Colors from Android App */
  --color-bg: #0F0D15;
  --color-surface: #181524;
  --color-surface-card: rgba(28, 25, 42, 0.7);
  --color-surface-border: rgba(208, 188, 255, 0.12);
  
  --color-primary: #D0BCFF;
  --color-primary-accent: #6750A4;
  --color-primary-container: #4F378B;
  --color-on-primary-container: #EADDFF;
  
  --color-secondary: #CCC2DC;
  --color-tertiary: #EFB8C8;
  
  --color-text-main: #F4F0FF;
  --color-text-muted: #A39DB5;
  --color-text-subtle: #6E6882;
  
  --color-glow: rgba(103, 80, 164, 0.35);
  --color-glow-secondary: rgba(208, 188, 255, 0.15);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-on-primary-container);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-center {
  text-align: center;
}

/* Typography Utilities */
.gradient-text {
  background: linear-gradient(135deg, #D0BCFF 0%, #EADDFF 50%, #EFB8C8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-accent) 0%, #7C4DFF 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 20px var(--color-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px var(--color-glow);
  color: #FFFFFF;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

.btn-playstore {
  background: linear-gradient(135deg, #2D2545 0%, #1F1934 100%);
  border: 1px solid var(--color-primary-accent);
  color: #FFFFFF;
  box-shadow: 0 4px 24px rgba(103, 80, 164, 0.25);
}

.btn-playstore:hover {
  background: linear-gradient(135deg, #3A3057 0%, #292143 100%);
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(103, 80, 164, 0.4);
  color: #FFFFFF;
}

.btn-play-icon {
  width: 28px;
  height: 28px;
  fill: var(--color-primary);
}

.btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.1;
}

.btn-sub {
  font-size: 0.65rem;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  font-weight: 600;
}

.btn-main {
  font-size: 1.05rem;
  font-weight: 800;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-surface-border);
  color: var(--color-text-main);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  color: var(--color-text-main);
}

/* Navbar */
.navbar-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 13, 21, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-surface-border);
  padding: 16px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.brand-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

.play-icon {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: #FFFFFF;
  position: relative;
  transition: background 0.3s;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: #FFFFFF;
  left: 0;
  transition: transform 0.3s;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

/* Hero Section */
.hero-section {
  position: relative;
  padding: 140px 0 60px;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(circle, var(--color-glow) 0%, rgba(15, 13, 21, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  max-width: 620px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* Privacy Section */
.privacy-section {
  padding: 100px 0;
  background: var(--color-bg);
}

.privacy-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.privacy-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-surface-border);
  margin-bottom: 24px;
}

.privacy-title-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.privacy-shield-icon {
  font-size: 2.5rem;
}

.privacy-header h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: #FFFFFF;
}

.effective-date {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 4px;
}

.privacy-contact-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: rgba(103, 80, 164, 0.2);
  border: 1px solid rgba(208, 188, 255, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
}

.privacy-quick-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  margin-bottom: 36px;
  font-size: 0.85rem;
}

.privacy-quick-nav span {
  font-weight: 700;
  color: var(--color-text-subtle);
  margin-right: 4px;
}

.privacy-quick-nav a {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  color: var(--color-text-main);
  transition: all var(--transition-fast);
}

.privacy-quick-nav a:hover {
  background: var(--color-primary-accent);
  color: #FFFFFF;
}

.privacy-content-body {
  color: #E2DFEB;
  line-height: 1.7;
  font-size: 0.98rem;
}

.privacy-content-body strong {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-top: 24px;
  margin-bottom: 8px;
}

.privacy-content-body p {
  margin-bottom: 12px;
}

.privacy-content-body ul {
  margin-left: 24px;
  margin-bottom: 16px;
}

.privacy-content-body li {
  margin-bottom: 6px;

}

/* Footer */
.site-footer {
  background: #09080E;
  border-top: 1px solid var(--color-surface-border);
  padding: 32px 0;
  font-size: 0.88rem;
  color: var(--color-text-subtle);
}

/* Responsive Styles */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #14111F;
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    border-bottom: 1px solid var(--color-surface-border);
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-toggle {
    display: block;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .privacy-card {
    padding: 24px;
  }
}