:root {
  --bg-1: #f5f7fb;
  --bg-2: #e9eef9;
  --card-bg: #ffffff;
  --text-main: #131722;
  --text-muted: #5c667a;
  --line: #dde3f0;
  --button-bg: #131722;
  --button-text: #ffffff;
  --button-bg-hover: #202738;
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  font-family: "Segoe UI Variable", "Avenir Next", "Helvetica Neue", sans-serif;
  color: var(--text-main);
  background: radial-gradient(circle at 20% 20%, #ffffff 0%, transparent 45%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
}

.screen {
  width: 100%;
  height: 100dvh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 18px 40px rgba(25, 35, 58, 0.08);
  text-align: center;
}

.kicker {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.title {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.15;
}

.description {
  margin: 10px 0 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.links {
  display: grid;
  gap: 10px;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 0;
  border-radius: 12px;
  background: var(--button-bg);
  color: var(--button-text);
  text-decoration: none;
  font-size: 0.97rem;
  font-weight: 600;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.link-btn:hover,
.link-btn:focus-visible {
  background: var(--button-bg-hover);
  transform: translateY(-1px);
}

@media (min-width: 768px) {
  .card {
    padding: 26px;
  }

  .title {
    font-size: 1.9rem;
  }
}