* {
  box-sizing: border-box;
}

:root {
  --bg-dark-1: #07090f;
  --bg-dark-2: #0c1220;
  --bg-dark-3: #121826;
  --text-main: rgba(255, 255, 255, 0.96);
  --text-soft: rgba(255, 255, 255, 0.78);
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.12);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Arial, sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at 10% 15%, rgba(180, 0, 0, 0.18), transparent 24%),
    radial-gradient(circle at 90% 20%, rgba(170, 0, 0, 0.12), transparent 20%),
    radial-gradient(circle at 20% 85%, rgba(140, 0, 0, 0.14), transparent 22%),
    linear-gradient(135deg, var(--bg-dark-1) 0%, var(--bg-dark-2) 45%, var(--bg-dark-3) 100%);
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  overflow: hidden;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  box-shadow:
    inset 0 0 120px rgba(120, 0, 0, 0.14),
    inset 0 0 220px rgba(255, 30, 30, 0.08);
}

.page-shell {
  width: min(100%, 760px);
  display: flex;
  justify-content: center;
}

.card {
  width: min(100%, 580px);
  text-align: center;
  padding: 34px 26px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.06));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 18%, rgba(255,255,255,0.11), transparent 24%),
    radial-gradient(circle at 85% 12%, rgba(255,255,255,0.08), transparent 20%),
    linear-gradient(180deg, rgba(255,255,255,0.06), transparent 55%);
  pointer-events: none;
}

.content {
  position: relative;
  z-index: 1;
}

.text-box {
  width: 100%;
  padding: 22px 24px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.05));
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.10);
}

h1 {
  margin: 0 0 12px;
  font-size: 34px;
  line-height: 1.1;
  font-weight: 700;
  word-break: break-word;
}

p {
  margin: 0;
  font-size: 16px;
  line-height: 1.55;
  color: var(--text-soft);
  word-break: break-word;
}

.button-wrap {
  margin-top: 18px;
}

.shiny-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 280px);
  min-height: 50px;
  padding: 13px 20px;
  border-radius: 18px;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: white;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.2px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    0 16px 34px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(255,255,255,0.18);
  background:
    linear-gradient(135deg,
      rgba(175, 0, 0, 0.88) 0%,
      rgba(35, 35, 35, 0.96) 48%,
      rgba(245, 245, 245, 0.40) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.shiny-button::before {
  content: "";
  position: absolute;
  inset: -28%;
  background:
    radial-gradient(circle at 18% 25%, rgba(255, 90, 90, 0.32), transparent 26%),
    radial-gradient(circle at 82% 72%, rgba(255, 255, 255, 0.22), transparent 24%),
    radial-gradient(circle at 52% 52%, rgba(0, 0, 0, 0.28), transparent 42%);
  filter: blur(18px);
  z-index: 0;
}

.shiny-button::after {
  content: "";
  position: absolute;
  top: 0;
  left: -35%;
  width: 55%;
  height: 100%;
  background: linear-gradient(
    100deg,
    rgba(255,255,255,0.00) 0%,
    rgba(255,255,255,0.20) 45%,
    rgba(255,255,255,0.03) 100%
  );
  transform: skewX(-24deg);
  z-index: 1;
}

.shiny-button span {
  position: relative;
  z-index: 2;
}

.shiny-button:hover {
  transform: translateY(-1px);
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255,255,255,0.18);
}

.small-note {
  margin-top: 14px;
  font-size: 13px;
  color: rgba(255,255,255,0.62);
}

@media (max-width: 720px) {
  body {
    padding: 14px;
  }

  .card {
    width: 100%;
    padding: 24px 18px;
    border-radius: 22px;
  }

  .text-box {
    padding: 18px 16px;
    border-radius: 18px;
  }

  h1 {
    font-size: 28px;
  }

  p {
    font-size: 15px;
  }

  .shiny-button {
    width: 100%;
    min-height: 48px;
    font-size: 14px;
    border-radius: 16px;
  }
}

@media (max-width: 420px) {
  body {
    padding: 10px;
  }

  .card {
    padding: 18px 14px;
    border-radius: 18px;
  }

  .text-box {
    padding: 16px 14px;
  }

  h1 {
    font-size: 24px;
  }

  p {
    font-size: 14px;
  }

  .small-note {
    font-size: 12px;
  }
}