:root {
  --bg: #f4f8ff;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-strong: #ffffff;
  --text: #101725;
  --muted: #5f6780;
  --line: rgba(16, 23, 37, 0.08);
  --accent: #28c0ed;
  --accent-mid: #5b78ff;
  --accent-deep: #bf20ff;
  --shadow: 0 20px 50px rgba(31, 55, 120, 0.12);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top right, rgba(191, 32, 255, 0.18), transparent 26rem),
    radial-gradient(circle at top left, rgba(40, 192, 237, 0.18), transparent 24rem),
    radial-gradient(circle at 50% 20%, rgba(91, 120, 255, 0.12), transparent 20rem),
    var(--bg);
  color: var(--text);
  font-family: "Avenir Next", "Avenir Next Rounded", "SF Pro Display", "Helvetica Neue", sans-serif;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-shell {
  width: min(100%, 440px);
  margin: 0 auto;
  padding: 18px 18px 104px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 800;
}

.brand img {
  border-radius: 9px;
  box-shadow: 0 8px 18px rgba(91, 120, 255, 0.24);
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section {
  padding: 18px 0 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.promo-card h2 {
  margin: 0;
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(2.9rem, 8vw, 4.2rem);
  max-width: 11ch;
}

.section-heading h2,
.promo-card h2 {
  font-size: clamp(2rem, 6vw, 2.75rem);
}

.lede,
.section-heading p,
.promo-card p,
.step-card p,
.hero-list li {
  color: var(--muted);
  line-height: 1.5;
  font-size: 1rem;
}

.lede {
  margin: 16px 0 0;
  max-width: 28ch;
  font-size: 1.08rem;
}

.cta-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 18px;
  font-size: 1rem;
  font-weight: 800;
  text-align: center;
  transition: transform 140ms ease, opacity 140ms ease, background 140ms ease;
}

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

.button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-mid) 52%, var(--accent-deep));
  color: #fff;
  box-shadow: 0 16px 30px rgba(91, 120, 255, 0.26);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--line);
  color: var(--text);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.stat {
  padding: 14px 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
}

.stat strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.92rem;
  font-weight: 800;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.25;
}

.hero-card,
.step-card,
.promo-card {
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.hero-card {
  margin-top: 22px;
  padding: 20px;
  border-radius: 30px;
}

.hero-copy {
  display: flex;
  align-items: center;
  gap: 16px;
}

.app-icon {
  width: 80px;
  height: 80px;
  border-radius: 22px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.14);
}

.hero-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-copy h2 {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.05;
}

.hero-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.hero-list li + li {
  margin-top: 12px;
}

.section-heading p {
  margin: 12px 0 0;
}

.step-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.step-card {
  position: relative;
  padding: 18px;
  border-radius: 24px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(91, 120, 255, 0.11);
  color: var(--accent-mid);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.step-card h3 {
  margin: 16px 0 8px;
  font-size: 1.3rem;
  line-height: 1.05;
}

.step-card p {
  margin: 0;
}

.promo-card {
  padding: 24px 20px;
  border-radius: 32px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.18), transparent 18rem),
    linear-gradient(145deg, rgba(18, 26, 48, 0.98), rgba(84, 60, 204, 0.96) 58%, rgba(191, 32, 255, 0.94));
  color: #fff;
}

.promo-card .eyebrow,
.promo-card p {
  color: rgba(255, 255, 255, 0.76);
}

.promo-card .button.secondary {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, rgba(244, 248, 255, 0.98), rgba(244, 248, 255, 0.78), rgba(244, 248, 255, 0));
}

.sticky-cta .button {
  width: min(100%, 440px);
  margin: 0 auto;
}

@media (min-width: 720px) {
  .site-shell {
    width: min(100%, 1080px);
    padding-bottom: 140px;
  }

  .hero h1 {
    max-width: none;
  }

  .cta-row {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .button {
    width: auto;
  }

  .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .sticky-cta {
    display: none;
  }
}