:root {
  --bg: #060814;
  --bg-soft: #0f1730;
  --text: #f3f4f6;
  --muted: #bcc3d6;
  --primary: #8f33ff;
  --accent: #39b3ff;
  --card: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans JP",
    "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1100px 620px at 85% -20%, rgba(143, 51, 255, 0.35), transparent 65%),
    radial-gradient(800px 500px at 10% 0%, rgba(57, 179, 255, 0.28), transparent 65%),
    linear-gradient(180deg, #060814 0%, #080b18 45%, #0b1023 100%);
  line-height: 1.7;
}

a {
  color: #badaff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: rgba(6, 8, 20, 0.55);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 14px;
}

.hero {
  padding: 84px 0 64px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 34px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: #cbd3e8;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.08;
}

.hero p {
  color: var(--muted);
  margin: 18px 0 0;
  font-size: 17px;
}

.actions {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(90deg, var(--primary), #b050ff);
}

.btn-secondary {
  color: #eef3ff;
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.app-shot {
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 22px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}

.app-shot img {
  width: 100%;
  border-radius: 18px;
  display: block;
}

.section {
  padding: 26px 0 56px;
}

.section h2 {
  margin: 0 0 18px;
  font-size: 26px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 17px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.legal-wrapper {
  padding: 70px 0;
}

.legal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px 24px;
}

.legal h1 {
  font-size: 30px;
  margin-bottom: 10px;
}

.legal h2 {
  margin-top: 28px;
  font-size: 20px;
}

.legal p,
.legal li {
  color: var(--muted);
}

.footer {
  padding: 24px 0 34px;
  border-top: 1px solid var(--border);
  color: #cdd5ec;
  font-size: 14px;
}

.footer a {
  color: #d5e2ff;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .cards {
    grid-template-columns: 1fr;
  }
}