:root {
  --bg: #f3f8ff;
  --paper: #ffffff;
  --ink: #1a1f36;
  --muted: #5c668a;
  --line: #d7e3f5;
  --sky: #b8d9ff;
  --lilac: #8b7cf6;
  --lilac-deep: #5b4fd6;
  --sun: #ffe566;
  --coral: #ff6b6b;
  --ok: #3ecf8e;
  --radius: 18px;
  --max: 720px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Outfit", "Avenir Next", "Helvetica Neue", sans-serif;
  background: var(--bg);
  line-height: 1.5;
}

.sky {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, #fff7c2 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 20%, rgba(139, 124, 246, 0.22) 0%, transparent 50%),
    radial-gradient(ellipse 50% 35% at 0% 60%, rgba(184, 217, 255, 0.55) 0%, transparent 55%),
    linear-gradient(180deg, #eaf3ff 0%, #f7fbff 45%, #ffffff 100%);
}

.page {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

.hero {
  text-align: center;
  padding: 28px 0 48px;
  animation: rise 520ms ease both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.logo {
  display: block;
  margin: 0 auto 18px;
  border-radius: 18px;
  box-shadow: 0 10px 28px rgba(91, 79, 214, 0.18);
}

.brand {
  margin: 0 0 14px;
  font-size: clamp(2.4rem, 7vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--ink);
}

.brand::after {
  content: "";
  display: block;
  width: 56px;
  height: 6px;
  margin: 14px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--sun), var(--coral), var(--lilac));
}

.hero h1 {
  margin: 22px auto 14px;
  max-width: 16ch;
  font-size: clamp(1.35rem, 3.6vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.lede {
  margin: 0 auto 28px;
  max-width: 38ch;
  color: var(--muted);
  font-size: 1.08rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

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

.btn.primary {
  color: #fff;
  background: var(--lilac-deep);
  box-shadow: 0 8px 0 #3d3499, 0 12px 24px rgba(91, 79, 214, 0.25);
}

.btn.primary:hover {
  background: var(--lilac);
}

.btn.primary:active {
  transform: translateY(2px);
  box-shadow: 0 4px 0 #3d3499, 0 8px 16px rgba(91, 79, 214, 0.2);
}

.btn.ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
  border: 2px solid var(--line);
}

.btn.ghost:hover {
  background: #fff;
  border-color: var(--lilac);
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.band {
  margin: 18px 0;
  padding: 28px 26px;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 0 rgba(184, 217, 255, 0.55);
  animation: rise 620ms ease both;
  animation-delay: 80ms;
}

.band.soft {
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
  animation-delay: 140ms;
}

.band h2 {
  margin: 0 0 18px;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
}

.step-n {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--ink);
  background: var(--sun);
  border: 2px solid #f0c93a;
}

.steps li:nth-child(2) .step-n {
  background: #b8f0d4;
  border-color: #6ed9a5;
}

.steps li:nth-child(3) .step-n {
  background: #d9d2ff;
  border-color: var(--lilac);
}

.steps h3 {
  margin: 2px 0 4px;
  font-size: 1.05rem;
}

.steps p,
.install,
.notes {
  margin: 0;
  color: var(--muted);
}

.install {
  padding-left: 1.2em;
  display: grid;
  gap: 10px;
}

.install li::marker {
  color: var(--lilac-deep);
  font-weight: 700;
}

.notes {
  padding-left: 1.1em;
  display: grid;
  gap: 10px;
}

.notes a {
  color: var(--lilac-deep);
  font-weight: 600;
}

.foot {
  margin-top: 36px;
  text-align: center;
  padding-top: 28px;
  border-top: 2px dashed var(--line);
  animation: rise 700ms ease both;
  animation-delay: 180ms;
}

.brand-mini {
  margin: 0 0 6px;
  font-weight: 700;
  font-size: 1.15rem;
}

.foot p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.foot-btn {
  min-width: 200px;
}

@media (max-width: 560px) {
  .page {
    width: min(var(--max), calc(100% - 28px));
    padding-top: 32px;
  }

  .band {
    padding: 22px 18px;
    box-shadow: 0 8px 0 rgba(184, 217, 255, 0.55);
  }

  .btn.primary {
    box-shadow: 0 6px 0 #3d3499, 0 10px 18px rgba(91, 79, 214, 0.22);
  }
}