:root {
  --bg: #0f1115;
  --panel: rgba(22, 25, 31, 0.94);
  --text: #f5f7fa;
  --muted: #aeb6c2;
  --red: #d3131b;
  --red-dark: #920b11;
  --line: rgba(255,255,255,.11);
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(211,19,27,.18), transparent 34%),
    linear-gradient(135deg, #090a0d 0%, #151922 55%, #0a0c10 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .13;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0,
    transparent 18px,
    rgba(255,255,255,.06) 18px,
    rgba(255,255,255,.06) 19px
  );
}

.maintenance-card {
  width: min(760px, 100%);
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 54px 44px 44px;
  border: 1px solid var(--line);
  border-top: 5px solid var(--red);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(0,0,0,.45);
  backdrop-filter: blur(8px);
}

.badge {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--red-dark), var(--red));
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
}

.icon {
  width: 92px;
  height: 92px;
  margin: 28px auto 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.13);
  background: rgba(255,255,255,.04);
  font-size: 48px;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -.035em;
}

p {
  margin: 0 auto 12px;
  max-width: 620px;
  line-height: 1.65;
  color: #d8dde5;
  font-size: 17px;
}

.lead { font-size: 20px; }

.notice {
  margin: 30px auto 0;
  padding: 20px;
  max-width: 440px;
  border-radius: 12px;
  background: rgba(211,19,27,.11);
  border: 1px solid rgba(211,19,27,.4);
}

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

.notice strong {
  margin-bottom: 7px;
  font-size: 16px;
}

.notice span {
  color: #fff;
  font-size: 31px;
  font-weight: 800;
  letter-spacing: .03em;
}

.divider {
  height: 1px;
  margin: 34px 0 24px;
  background: var(--line);
}

.small {
  font-size: 14px;
  margin-bottom: 5px;
}

.muted { color: var(--muted); }

@media (max-width: 600px) {
  body { padding: 14px; }
  .maintenance-card { padding: 38px 22px 30px; }
  .lead { font-size: 18px; }
  p { font-size: 16px; }
}