* {
  box-sizing: border-box;
}

:root {
  --navy: #061a38;
  --teal: #00a6a6;
  --text: #111827;
  --muted: #667085;
  --line: #d9dde3;
  --soft: #f5f7f9;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--text);
  background: #fff;
}

.topbar {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6%;
  border-bottom: 1px solid #eceff3;
  background: #fff;
}

.brand {
  font-size: 24px;
  font-weight: 800;
}

.secure-note {
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
}

.hero {
  min-height: 320px;
  background: var(--navy);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  gap: 56px;
  padding: 72px 9% 0;
}

.hero-copy {
  color: #fff;
  padding-top: 130px;
  flex-direction: column;
  justify-content: flex-enf;
  align-items: center;
  text-align: center;
  height: 100%;
  padding-bottom: 70px;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.sale-text {
  margin: 18px 0 0;
  font-size: 24px;
  font-weight: 700;
}

.purchase-card {
  width: 100%;
  background: #fff;
  border-radius: 8px 8px 0 0;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  overflow: hidden;
  align-self: end;
  position: relative;
  top: 36px;
}

.card-top {
  padding: 24px 20px 22px;
}

.card-top h2 {
  margin: 0 0 8px;
  font-size: 28px;
}

.card-top p {
  margin: 12px 0 0;
  line-height: 1.5;
}

.badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 4px;
  padding: 4px 8px;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 700;
}

.premium {
  background: #e9d9ff;
}

.verified {
  background: #c9fbf3;
}

.option-row {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  border-top: 1px solid var(--line);
  background: #fff;
  font-weight: 700;
}

.option-row strong {
  margin-left: auto;
  color: var(--teal);
}

.selected {
  background: #f7f8fa;
}

.radio-dot,
.radio-empty {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.radio-dot {
  border: 6px solid var(--teal);
}

.radio-empty {
  border: 1px solid #8e949c;
}

.action-wrap {
  padding: 22px 20px;
  border-top: 1px solid var(--line);
}

.buy-button {
  display: flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  background: #111;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.buy-button:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

.benefits {
  list-style: none;
  margin: 0;
  padding: 18px 20px 22px;
  border-top: 1px solid var(--line);
}

.benefits li {
  margin: 10px 0;
  position: relative;
  padding-left: 28px;
  color: #344054;
}

.benefits li::before {
  content: "✓";
  position: absolute;
  left: 0;
  font-weight: 800;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding: 88px 9% 64px;
  background: #fff;
}

.feature {
  text-align: center;
}

.icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 20px;
  border: 2px solid #111827;
  border-radius: 22px;
  display: grid;
  place-items: center;
  font-size: 34px;
  font-weight: 800;
  background: #fff;
  box-shadow: 8px 8px 0 #e7f9f8;
}

.feature h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.feature p {
  max-width: 320px;
  margin: 0 auto;
  color: var(--muted);
  line-height: 1.6;
}

footer {
  padding: 24px 6%;
  background: var(--soft);
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 56px 6% 0;
  }

  .purchase-card {
    top: 40px;
  }

  .features {
    grid-template-columns: 1fr;
    padding-top: 96px;
  }
}

@media (max-width: 560px) {
  .topbar {
    height: auto;
    padding: 20px 5%;
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
  }

  .hero {
    padding: 44px 5% 0;
  }

  .eyebrow {
    font-size: 18px;
  }

  .sale-text {
    font-size: 20px;
  }

  .purchase-card {
    top: 28px;
  }

  .option-row {
    flex-wrap: wrap;
    padding: 16px 18px;
  }

  .option-row strong {
    width: 100%;
    margin-left: 32px;
  }
}