:root {
  --color-navy-dark: #091420;
  --color-navy-secondary: #1c324c;
  --color-navy-mid: #34485b;
  --color-blue-accent: #175be5;
  --color-white: #ffffff;
  --color-blue-slate: #63758d;
  --color-yellow: #facc15;
  --color-yellow-border: #eab308;
  --color-red: #dc2626;
  --color-green: #16a34a;
  --color-green-dark: #15803d;
}

* {
  box-sizing: border-box;
}

html {
  background-color: var(--color-white);
  color: var(--color-navy-dark);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-white);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(23, 91, 229, 0.15);
  color: var(--color-navy-dark);
}

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  width: 100%;
  min-height: 100vh;
  background: var(--color-white);
  color: var(--color-navy-dark);
}

.top-banner {
  width: 100%;
  background: var(--color-yellow);
  color: var(--color-navy-dark);
  padding: 10px 16px;
  text-align: center;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--color-yellow-border);
}

.content-wrap {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  padding: 16px 18px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-section,
.benefits-section,
.offer-section {
  display: flex;
  flex-direction: column;
}

.hero-section {
  text-align: center;
}

.alert-title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-red);
  text-decoration: underline;
  letter-spacing: -0.02em;
  line-height: 30.25px;
}

.main-title {
  margin: 10px 0 0;
  font-size: 25px;
  font-weight: 800;
  color: var(--color-navy-dark);
  letter-spacing: -0.03em;
  line-height: 1.35;
}

.main-title .accent {
  color: var(--color-blue-accent);
}

.intro-text,
.support-text,
.offer-text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-navy-mid);
}

.intro-text strong,
.offer-text strong {
  color: var(--color-navy-dark);
  font-weight: 700;
}

.mockup-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-top: 6px;
}

.mockup-image {
  width: min(80%, 272px);
  max-width: 272px;
  height: auto;
  object-fit: contain;
  user-select: none;
}

.benefits-section {
  gap: 24px;
}

.section-title {
  margin: 0;
  text-align: center;
  font-size: 21px;
  font-weight: 700;
  color: var(--color-navy-dark);
  letter-spacing: -0.02em;
}

.section-title-offer {
  font-weight: 800;
}

.benefits-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.benefits-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--color-navy-secondary);
  font-size: 15px;
  line-height: 1.35;
}

.checkmark {
  color: var(--color-blue-accent);
  font-weight: 700;
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
  user-select: none;
}

.support-text {
  text-align: center;
  padding-top: 8px;
}

.offer-section {
  align-items: center;
  text-align: center;
  gap: 14px;
  padding-top: 8px;
}

.offer-text {
  margin-top: 0;
}

.pricing-block {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 4px 0;
}

.old-price {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-red);
}

.old-price span {
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--color-red);
}

.price-lead {
  margin: 0;
  font-size: 13px;
  font-weight: 900;
  color: var(--color-green-dark);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.final-price {
  margin: 0;
  font-size: 55px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-green);
  text-shadow: 0 2px 8px rgba(22, 163, 74, 0.2);
}

.checkout-wrap {
  width: 100%;
  margin: 8px 0;
  display: flex;
  justify-content: center;
}

.sales-funnel {
  width: 100%;
  min-height: 60px;
}

.security-note {
  margin: 0;
  padding-top: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-blue-slate);
}

@media (min-width: 640px) {
  .top-banner {
    padding-top: 10px;
    padding-bottom: 10px;
    font-size: 14px;
  }

  .content-wrap {
    max-width: 560px;
    padding: 24px 22px 48px;
    gap: 32px;
  }

  .main-title {
    margin-top: 14px;
    font-size: 29px;
  }

  .intro-text,
  .support-text,
  .offer-text,
  .benefits-list li {
    font-size: 16px;
  }

  .mockup-wrap {
    margin-top: 8px;
  }

  .mockup-image {
    width: min(80%, 304px);
    max-width: 304px;
  }

  .benefits-section {
    gap: 24px;
  }

  .section-title {
    font-size: 24px;
  }

  .benefits-list {
    gap: 16px;
  }

  .old-price {
    font-size: 18px;
  }

  .price-lead {
    font-size: 14px;
  }
}