:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(16, 185, 129, 0.4);
  --accent: #10b981;
  --accent-hover: #059669;
  --accent-glow: rgba(16, 185, 129, 0.2);
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --radius-lg: 16px;
  --radius-md: 10px;
  --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
  --container-max: 1080px;
  --content-max: 840px;
}

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

body {
  font-family: var(--font-stack);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Background ambient glow */
body::before {
  content: "";
  position: fixed;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, rgba(10, 14, 23, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

/* Header & Nav */
header {
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #10b981 0%, #047857 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.logo-text {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-badge {
  font-size: 11px;
  text-transform: uppercase;
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

nav a:hover, nav a.active {
  color: var(--accent);
}

/* Main Container */
main {
  flex: 1;
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.legal-content {
  max-width: var(--content-max);
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  backdrop-filter: blur(12px);
}

/* Typography */
h1 {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  line-height: 1.2;
}

h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 36px;
  margin-bottom: 14px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

h3 {
  font-size: 17px;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 8px;
  color: #e5e7eb;
}

p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 15px;
}

ul, ol {
  color: var(--text-secondary);
  margin-left: 24px;
  margin-bottom: 18px;
  font-size: 15px;
}

li {
  margin-bottom: 8px;
}

strong {
  color: var(--text-primary);
}

.meta-date {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 32px;
  display: block;
}

/* App Store Button */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #ffffff;
  color: #000000;
  padding: 12px 24px;
  border-radius: 99px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.btn-appstore:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
}

.btn-appstore svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* Feature Cards Grid */
.grid-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 48px 0;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 16px;
  display: inline-block;
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
}

/* Callout Box */
.callout {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin: 24px 0;
}

.callout p {
  color: #a7f3d0;
  font-size: 14px;
  margin: 0;
}

/* FAQ Item */
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
  padding: 20px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-q {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.faq-a {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-primary);
  padding: 36px 24px;
  margin-top: auto;
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s ease;
}

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

.copyright {
  color: var(--text-muted);
  font-size: 13px;
}

/* Responsive */
@media (max-width: 640px) {
  .legal-content {
    padding: 32px 20px;
  }

  h1 {
    font-size: 28px;
  }

  nav ul {
    gap: 16px;
  }

  .nav-container {
    padding: 14px 16px;
  }
}