* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  color: #ffffff;
  background: radial-gradient(circle at top left, #334155, #0f172a 58%, #020617);
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 620px;
  padding: 48px 32px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 28px;
  background: rgba(15, 23, 42, 0.72);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(14px);
}

.logo {
  display: inline-block;
  letter-spacing: 0.18em;
  font-weight: 800;
  font-size: 18px;
  padding: 14px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.line {
  width: 74px;
  height: 4px;
  margin: 28px auto 22px;
  border-radius: 999px;
  background: #38bdf8;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.05;
}

p {
  margin: 0 auto 10px;
  max-width: 470px;
  font-size: 18px;
  line-height: 1.6;
}

.muted {
  color: #cbd5e1;
}

.mail {
  display: inline-block;
  margin-top: 26px;
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  border-bottom: 2px solid #38bdf8;
  padding-bottom: 4px;
}

.mail:hover {
  color: #bae6fd;
}