:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(8, 22, 40, 0.78);
  --panel-border: rgba(137, 221, 255, 0.18);
  --text: #eef6ff;
  --muted: #9cb7cf;
  --accent: #5ce0ff;
  --accent-strong: #90f0ff;
  --warning: #ffd37a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(92, 224, 255, 0.16), transparent 36%),
    linear-gradient(180deg, #07111f 0%, #050c17 44%, #02060d 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent-strong);
}

a:hover {
  color: #d2fbff;
}

.shell {
  width: min(1080px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(92, 224, 255, 0.35), rgba(115, 76, 255, 0.35));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
}

.hero {
  margin-top: 28px;
  padding: 44px;
  border-radius: 30px;
  background:
    linear-gradient(160deg, rgba(16, 41, 74, 0.92), rgba(5, 11, 20, 0.92)),
    radial-gradient(circle at top right, rgba(92, 224, 255, 0.18), transparent 30%);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0 0 12px;
  line-height: 1.15;
}

h1 {
  margin-top: 18px;
  font-size: clamp(2.6rem, 7vw, 4.7rem);
  max-width: 10ch;
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
}

p {
  margin: 0 0 16px;
  color: var(--muted);
}

.hero-copy {
  max-width: 620px;
  font-size: 1.08rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
}

.button-primary {
  background: linear-gradient(135deg, #5ce0ff, #82f2ff);
  color: #04101b;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.grid {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  padding: 24px;
  border-radius: 22px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.panel-title {
  color: var(--text);
  font-weight: 800;
}

.fine-print {
  font-size: 0.94rem;
}

.notice {
  padding: 16px 18px;
  border-left: 4px solid var(--warning);
  border-radius: 14px;
  background: rgba(255, 211, 122, 0.09);
}

.site-footer {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 24px, 1080px);
    padding-top: 18px;
  }

  .hero {
    padding: 28px 22px;
    border-radius: 24px;
  }
}