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

:root {
  --bg: #050505;
  --surface: #111111;
  --border: #1e1e1e;
  --text: #e8e8e8;
  --text-secondary: #999999;
  --accent: #9600FF;
  --accent-soft: rgba(150, 0, 255, 0.12);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--text); }

/* Main */
.content {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.page-meta {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 40px;
}

h2 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--text);
}

p {
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-size: 15px;
}

.content > p:first-of-type {
  color: var(--text);
  font-size: 17px;
  line-height: 1.8;
}

/* About hero */
.about-hero {
  text-align: center;
  padding: 24px 0 48px;
}

.about-hero .page-title {
  font-size: 40px;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.about-hero p {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 40px 0;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 20px;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* Contact card */
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  margin-top: 48px;
}

.contact-card h2 {
  margin-top: 0;
  margin-bottom: 8px;
}

.contact-card p {
  margin-bottom: 20px;
}

.contact-card a.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 12px 28px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 14px;
  transition: opacity 0.15s;
}

.contact-card a.btn:hover {
  opacity: 0.85;
  text-decoration: none;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  max-width: 720px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer span {
  color: var(--text-secondary);
  font-size: 13px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 13px;
}

@media (max-width: 600px) {
  .feature-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 13px; }
  .about-hero .page-title { font-size: 28px; }
  .footer { flex-direction: column; gap: 12px; text-align: center; }
}