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

:root {
  --bg: #0a0a0a;
  --fg: #ededed;
  --fg-muted: #888;
  --border: #222;
  --card-bg: #111;
  --accent: #ededed;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--fg);
  text-decoration: none;
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(10, 10, 10, 0.8);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
}

.nav-brand {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 40px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 9999px;
  font-size: 0.875rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

/* Features */
.features {
  padding: 0 24px 120px;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.feature-card {
  background: var(--card-bg);
  padding: 48px 32px;
}

.feature-icon {
  color: var(--fg-muted);
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Footer */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 40px 24px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer-contact {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  margin-bottom: 8px;
}

.footer-contact a {
  color: var(--fg);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s;
}

.footer-contact a:hover {
  border-color: var(--fg);
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    padding: 32px 24px;
  }

  .hero {
    padding: 100px 20px 60px;
  }
}