:root {
  --bg-start: #0f0f1a;
  --bg-end: #1a1a2e;
  --neon-cyan: #00f5ff;
  --neon-magenta: #ff00e5;
  --text-primary: #f5f5ff;
  --text-muted: #8a8aa3;
  --success: #00ffa3;
  --star: #ffd447;
  --border: rgba(0, 245, 255, 0.3);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(ellipse at top, var(--bg-end) 0%, var(--bg-start) 65%);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site {
  padding: 28px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  text-decoration: none;
}

.logo span {
  color: var(--neon-cyan);
  text-shadow: 0 0 12px rgba(0, 245, 255, 0.6);
}

nav.site a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin-left: 24px;
  transition: color 0.15s ease;
}

nav.site a:hover,
nav.site a:focus-visible {
  color: var(--neon-cyan);
}

main {
  padding: 64px 0 96px;
}

.hero {
  text-align: center;
  padding-bottom: 56px;
}

.hero h1 {
  font-size: 40px;
  font-weight: 800;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.hero h1 .glow {
  color: var(--neon-cyan);
  text-shadow: 0 0 20px rgba(0, 245, 255, 0.55), 0 0 48px rgba(0, 245, 255, 0.25);
}

.hero p.tagline {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 460px;
  margin: 0 auto;
}

.badge {
  display: inline-block;
  margin-top: 28px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.mock {
  margin: 48px auto 0;
  width: 220px;
  aspect-ratio: 9 / 16;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(160deg, #12121f 0%, #1a1a2e 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.04), 0 30px 80px rgba(0, 245, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.mock svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

section.feature {
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

section.feature h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 10px;
}

section.feature h2 .dot {
  color: var(--neon-magenta);
  text-shadow: 0 0 14px rgba(255, 0, 229, 0.5);
}

section.feature p {
  color: var(--text-muted);
  margin: 0;
}

section.feature ul {
  color: var(--text-muted);
  margin: 12px 0 0;
  padding-left: 20px;
}

section.feature li {
  margin-bottom: 6px;
}

section.feature li b {
  color: var(--text-primary);
}

.card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 28px;
  margin-top: 20px;
}

.card a.mail {
  display: inline-block;
  margin-top: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--neon-cyan);
  text-decoration: none;
  text-shadow: 0 0 12px rgba(0, 245, 255, 0.4);
}

.card a.mail:hover {
  text-decoration: underline;
}

article.legal h1 {
  font-size: 28px;
  margin-bottom: 4px;
}

article.legal .updated {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 36px;
}

article.legal h2 {
  font-size: 18px;
  margin-top: 36px;
  margin-bottom: 10px;
  color: var(--neon-cyan);
}

article.legal p,
article.legal li {
  color: var(--text-muted);
  font-size: 15px;
}

article.legal a {
  color: var(--neon-cyan);
}

article.legal ul {
  padding-left: 20px;
}

footer.site {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 32px 0;
}

footer.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

footer.site p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

footer.site nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  margin-left: 18px;
}

footer.site nav a:hover {
  color: var(--neon-cyan);
}

@media (max-width: 520px) {
  .hero h1 {
    font-size: 32px;
  }
  footer.site .wrap {
    flex-direction: column;
    align-items: flex-start;
  }
  footer.site nav a:first-child {
    margin-left: 0;
  }
}