:root {
  --bg-1: #05070f;
  --bg-2: #0a1631;
  --accent: #ffcc00;
  --accent-2: #ff8a00;
  --text: #f8fbff;
  --muted: #c9d4ea;
  --card: rgba(12, 20, 40, 0.85);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 15%, #223f85 0%, transparent 35%),
    radial-gradient(circle at 85% 80%, #89253e 0%, transparent 40%),
    linear-gradient(150deg, var(--bg-1), var(--bg-2));
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(720px, 100%);
  padding: clamp(24px, 5vw, 48px);
  border-radius: 24px;
  background: var(--card);
  backdrop-filter: blur(8px);
  box-shadow:
    0 25px 80px rgba(0, 0, 0, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.badge {
  display: inline-block;
  margin: 0 0 12px;
  padding: 8px 12px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #101217;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

h1 {
  margin: 0;
  line-height: 1.1;
  font-size: clamp(2rem, 6vw, 3.7rem);
}

h1 span {
  color: var(--accent);
}

.subtitle {
  color: var(--muted);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  margin: 16px 0 24px;
  max-width: 60ch;
}

.benefits {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.benefits li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
}

.benefits li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.buy-button {
  border: 0;
  width: 100%;
  border-radius: 14px;
  padding: 16px 18px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  color: #0a0b0f;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition:
    transform 0.2s ease,
    filter 0.2s ease;
}

.buy-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.buy-button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.status {
  min-height: 20px;
  margin-top: 16px;
  color: var(--muted);
}

.center-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.panel {
  text-align: center;
  width: min(560px, 100%);
  padding: 28px;
  border-radius: 18px;
  background: var(--card);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.panel a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}