:root {
  --bg: #080b16;
  --surface: rgba(20, 24, 39, 0.82);
  --surface-strong: #141827;
  --text: #f8fafc;
  --muted: #a8b0c4;
  --primary: #7c3aed;
  --secondary: #22d3ee;
  --accent: #f472b6;
  --highlight: #fbbf24;
  --border: rgba(255, 255, 255, 0.10);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background:
    radial-gradient(circle at 15% 0%, rgba(124, 58, 237, 0.22), transparent 34%),
    radial-gradient(circle at 95% 5%, rgba(34, 211, 238, 0.18), transparent 30%),
    radial-gradient(circle at 50% 100%, rgba(244, 114, 182, 0.12), transparent 28%),
    var(--bg);
}

a {
  color: inherit;
}

.container {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(8, 11, 22, 0.76);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 900;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.45);
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
}

.hero {
  padding: 96px 0 72px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.22);
  background: rgba(34, 211, 238, 0.08);
  color: var(--secondary);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 18px auto 16px;
  font-size: clamp(2.8rem, 7vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.hero p,
.lead {
  max-width: 760px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.08rem;
}

.actions {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  min-height: 48px;
  padding: 0 22px;
  border-radius: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 900;
  border: 1px solid var(--border);
}

.button.primary {
  border: 0;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.button.secondary {
  background: rgba(255, 255, 255, 0.04);
}

.section,
.page {
  padding: 44px 0 88px;
}

.section-title {
  text-align: center;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.065), rgba(255,255,255,0.025));
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 8px;
}

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

.page h1 {
  margin-left: 0;
  text-align: left;
  font-size: clamp(2.5rem, 6vw, 4.8rem);
}

.page .lead {
  margin-left: 0;
}

.notice {
  margin-top: 22px;
  padding: 18px 20px;
  border-radius: 17px;
  border: 1px solid rgba(251, 191, 36, 0.24);
  background: rgba(251, 191, 36, 0.08);
  color: #fde68a;
}

.legal-list {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

details {
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface);
}

summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  font-weight: 900;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  color: var(--secondary);
  font-size: 1.4rem;
}

details[open] summary::after {
  content: "−";
}

.details-content {
  padding: 0 22px 22px;
  color: var(--muted);
}

.site-footer {
  padding: 30px 0;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

@media (max-width: 820px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
    padding: 14px 0;
  }

  .nav-links {
    justify-content: flex-end;
  }

  .hero {
    padding-top: 64px;
  }
}