:root {
  --bg1: #f8fafc;
  --bg2: #eef2ff;
  --text: #0f172a;
  --muted: #64748b;
  --card: rgba(255,255,255,.82);
  --border: rgba(15,23,42,.08);
  --button: #0f172a;
  --button-text: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg1: #020617;
    --bg2: #111827;
    --text: #f8fafc;
    --muted: #94a3b8;
    --card: rgba(15,23,42,.78);
    --border: rgba(255,255,255,.12);
    --button: #f8fafc;
    --button-text: #020617;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(135deg, var(--bg1), var(--bg2));
  overflow: hidden;
}

.background {
  position: fixed;
  inset: -30%;
  background:
    radial-gradient(circle at 20% 20%, rgba(59,130,246,.35), transparent 30%),
    radial-gradient(circle at 80% 80%, rgba(168,85,247,.32), transparent 30%),
    radial-gradient(circle at 50% 50%, rgba(14,165,233,.18), transparent 28%);
  animation: moveBackground 14s ease-in-out infinite alternate;
  z-index: -1;
}

@keyframes moveBackground {
  from {
    transform: translate3d(-3%, -2%, 0) scale(1);
  }
  to {
    transform: translate3d(3%, 2%, 0) scale(1.08);
  }
}

.card {
  width: 100%;
  max-width: 760px;
  padding: 48px;
  text-align: center;
  border-radius: 32px;
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  box-shadow: 0 30px 90px rgba(0,0,0,.14);
}

.logo {
  max-width: 160px;
  max-height: 72px;
  margin-bottom: 28px;
}

.badge {
  display: inline-block;
  margin-bottom: 24px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: rgba(255,255,255,.16);
  font-size: 14px;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

p {
  max-width: 580px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

.actions {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.button,
.link {
  text-decoration: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 14px;
}

.button {
  background: var(--button);
  color: var(--button-text);
}

.link {
  color: var(--muted);
  border: 1px solid var(--border);
}

.maintenance {
  display: none;
  margin: 28px auto 0;
  max-width: 520px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(250,204,21,.14);
  border: 1px solid rgba(250,204,21,.35);
  color: var(--text);
}

.maintenance strong,
.maintenance span {
  display: block;
}

.maintenance span {
  margin-top: 4px;
  color: var(--muted);
}

body[data-maintenance="true"] .maintenance {
  display: block;
}

footer {
  margin-top: 36px;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 640px) {
  .card {
    padding: 36px 24px;
  }

  .actions {
    flex-direction: column;
  }

  .button,
  .link {
    width: 100%;
  }
}