:root {
  color-scheme: dark;
  --background: #090a11;
  --surface: rgba(17, 18, 31, 0.88);
  --surface-border: rgba(126, 108, 255, 0.24);
  --text: #f5f6fb;
  --muted: #b8bbca;
  --violet: #7257e8;
  --blue: #3a91eb;
  --button: rgba(255, 255, 255, 0.045);
  --button-hover: rgba(114, 87, 232, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(114, 87, 232, 0.12), transparent 32rem),
    radial-gradient(circle at 80% 85%, rgba(58, 145, 235, 0.1), transparent 30rem),
    var(--background);
}

.page-shell {
  width: 100%;
  flex: 1;
  display: grid;
  place-items: center;
  padding: 32px 18px 20px;
}

.card {
  width: min(720px, 100%);
  padding: clamp(32px, 6vw, 62px);
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 26px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(14px);
}

.brand-mark {
  width: 74px;
  height: 74px;
  margin: 0 auto 26px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(114, 87, 232, 0.5);
  border-radius: 22px;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: #ffffff;
  background: linear-gradient(145deg, rgba(114, 87, 232, 0.18), rgba(58, 145, 235, 0.12));
  box-shadow: 0 0 28px rgba(114, 87, 232, 0.12);
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a99bf6;
}

h1 {
  margin: 0;
  font-size: clamp(2.15rem, 6vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.intro {
  max-width: 610px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  line-height: 1.75;
}

.social-heading {
  margin: 34px 0 16px;
  font-size: 0.95rem;
  color: #d6d8e4;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.social-links a {
  min-width: 108px;
  padding: 12px 17px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  color: var(--text);
  background: var(--button);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.social-links a:hover,
.social-links a:focus-visible {
  border-color: rgba(114, 87, 232, 0.62);
  background: var(--button-hover);
  transform: translateY(-2px);
  outline: none;
}

.closing {
  margin: 30px 0 0;
  color: #85899b;
  font-size: 0.9rem;
}

footer {
  padding: 0 18px 22px;
  text-align: center;
  color: #686c7e;
  font-size: 0.78rem;
}

@media (max-width: 520px) {
  .card {
    border-radius: 20px;
  }

  .social-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .social-links a:last-child {
    grid-column: 1 / -1;
  }
}

.primary-link {
  display: inline-flex;
  margin-top: 32px;
  padding: 13px 20px;
  border: 1px solid rgba(114, 87, 232, 0.5);
  border-radius: 12px;
  color: var(--text);
  background: linear-gradient(135deg, rgba(114, 87, 232, 0.16), rgba(58, 145, 235, 0.11));
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 600;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.primary-link:hover,
.primary-link:focus-visible {
  border-color: rgba(58, 145, 235, 0.72);
  background: linear-gradient(135deg, rgba(114, 87, 232, 0.22), rgba(58, 145, 235, 0.17));
  transform: translateY(-2px);
  outline: none;
}