:root {
  --primary-color: #4A90E2;
  --primary-dark: #357ABD;
  --accent-color: #FF6B6B;
  --text-main: #2D3436;
  --text-muted: #636E72;
  --bg-light: #F9FAFB;
  --bg-white: #FFFFFF;
  --glass-bg: rgba(255, 255, 255, 0.8);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --border-radius: 12px;
  --max-width: 1000px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 1.75rem; margin-bottom: 1.5rem; }
p { margin-bottom: 1.5rem; color: var(--text-muted); }

/* Layout */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

header {
  height: 80px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary-color);
}

.logo-area img {
  width: 44px;
  height: 44px;
}

.main-nav {
  display: flex;
  gap: 32px;
}

.main-nav a {
  text-decoration: none;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

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

/* Hero Section */
.hero {
  padding: 60px 0 40px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}

.tagline {
  color: var(--primary-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
  display: block;
}

.hero-title {
  font-size: 3rem;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto;
}

.cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 2rem;
}

.btn {
  padding: 12px 24px;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-primary::before {
  content: "";
  display: inline-block;
  width: 20px;
  height: 20px;
  background-size: contain;
  background-repeat: no-repeat;
}

#hero_app_store_btn::before,
#footer_app_store_btn::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 384 512'%3E%3Cpath fill='white' d='M318.7 268.7c-.2-36.7 16.4-64.4 50-84.8-18.8-26.9-47.2-41.7-84.7-44.6-35.5-2.8-74.3 20.7-88.5 20.7-15 0-49.4-19.7-76.4-19.7C63.3 141.2 4 184.8 4 273.5q0 39.3 14.4 81.2c12.8 36.7 59 126.7 107.2 125.2 25.2-.6 43-17.9 75.8-17.9 31.8 0 48.3 17.9 76.4 17.9 48.6-.7 90.4-82.5 102.6-119.3-65.2-30.7-61.7-90-61.7-91.9zm-56.6-164.2c27.3-32.4 24.8-61.9 24-72.5-24.1 1.4-52 16.4-67.9 34.9-17.5 19.8-27.8 44.3-25.6 71.9 26.1 2 49.9-11.4 69.5-34.3z'/%3E%3C/svg%3E");
}

#hero_google_play_btn::before,
#footer_google_play_btn::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='white' d='M325.3 234.3L104.6 13l280.8 161.2-60.1 60.1zM47 0C34 6.8 25.3 19.2 25.3 35.3v441.3c0 16.1 8.7 28.5 21.7 35.3l256.6-256L47 0zm425.2 225.6l-58.9-34.1-65.7 64.5 65.7 64.5 60.1-34.1c18-14.3 18-46.5-1.2-60.8zM104.6 499l280.8-161.2-60.1-60.1L104.6 499z'/%3E%3C/svg%3E");
}

/* Brand Info Section */
.brand-info {
  padding: 40px 0;
  background-color: var(--bg-white);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.info-card {
  padding: 24px;
  background-color: var(--bg-light);
  border-radius: var(--border-radius);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.info-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.info-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

/* Contact Section */
.contact-section {
  padding: 40px 0;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
}

.btn-outline {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background-color: rgba(74, 144, 226, 0.05);
}

/* Legal Content Section */
.legal-section {
  padding: 30px 0 60px;
}

.legal-card {
  background: var(--bg-white);
  padding: 32px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.content-loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

.legal-content h1, .legal-content h2, .legal-content h3 {
  color: var(--text-main);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.legal-content p {
  margin-bottom: 1rem;
}

.legal-content ul, .legal-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

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

.last-updated {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* Footer */
footer {
  background-color: var(--bg-white);
  padding: 40px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  text-align: center;
}

.footer-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 2rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
}

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

.footer-apps {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 2rem;
}

.footer-apps .btn {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.footer-apps .btn::before {
  width: 16px;
  height: 16px;
}

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

/* Responsive */
@media (max-width: 768px) {
  .hero-title { font-size: 2.5rem; }
  .legal-card { padding: 24px; }
  .cta-group { flex-direction: column; }
}

/* Markdown Specific Overrides */
.markdown-body blockquote {
  border-left: 4px solid var(--primary-color);
  padding-left: 1rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 1.5rem 0;
}