:root {
  --green: #1b8a3a;
  --green-dark: #136a2c;
  --ink: #1a1a1a;
  --muted: #5a5a5a;
  --bg: #f7f7f4;
  --card: #ffffff;
  --border: #e3e3dc;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.hero {
  text-align: center;
  padding: 16px 0 8px;
}

.logo {
  display: block;
  margin: 0 auto 12px;
  border-radius: 12px;
}

h1 {
  margin: 0;
  font-size: 36px;
  color: var(--green);
}

.tagline {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.download {
  margin: 28px 0 32px;
  text-align: center;
}

.btn-primary {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px 20px;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  transition: background 150ms ease;
}

.btn-primary:hover,
.btn-primary:active {
  background: var(--green-dark);
}

.btn-label {
  font-size: 18px;
}

.btn-meta {
  font-size: 14px;
  font-weight: 400;
  opacity: 0.9;
}

.version {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.steps {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin: 0 0 20px;
}

.steps h2 {
  margin: 0 0 16px;
  font-size: 18px;
}

.step-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.step-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.step-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.step-num {
  flex: 0 0 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.step-list h3 {
  margin: 2px 0 4px;
  font-size: 16px;
}

.step-list p {
  margin: 0;
  color: var(--ink);
}

.note {
  margin: 16px 0 0;
  padding: 12px;
  background: #fff8e1;
  border-left: 3px solid #f0b400;
  font-size: 15px;
  color: #5a4500;
}

.share {
  text-align: center;
  margin: 24px 0;
}

.share h2 {
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--muted);
  font-weight: 500;
}

.share-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.share-btn svg {
  flex-shrink: 0;
}

.share-btn:hover,
.share-btn:focus-visible {
  background: #f0f0ea;
  border-color: #c8c8c0;
  outline: none;
}

.share-whatsapp svg {
  color: #25D366;
}

.share-facebook svg {
  color: #1877F2;
}

.share-linkedin svg {
  color: #0A66C2;
}

.share-copy svg,
.share-native svg {
  color: var(--green);
}

.qr {
  text-align: center;
  margin: 24px 0;
}

.qr img {
  max-width: 180px;
  height: auto;
  background: #fff;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.qr p {
  color: var(--muted);
  font-size: 14px;
  margin: 8px 0 0;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  margin-top: 28px;
}

@media print {

  .btn-primary,
  .download,
  .note,
  .share,
  footer {
    display: none;
  }

  .qr img {
    max-width: 280px;
  }

  body {
    background: #fff;
  }
}