:root {
  --green: #25d366;
  --green-dark: #128c7e;
  --bg: #fafafa;
  --text: #222;
  --muted: #666;
  --card: #fff;
  --border: #e5e5e5;
  --max: 720px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 20px;
}

section { margin-bottom: 64px; }

h1 {
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 24px;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.lead {
  font-size: 18px;
  margin-bottom: 16px;
}

.sub {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 32px;
}

.btn-primary, button[type="submit"] {
  display: inline-block;
  background: var(--green);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 14px 28px;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover, button[type="submit"]:hover {
  background: var(--green-dark);
}

.steps {
  display: grid;
  gap: 16px;
}

.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  position: relative;
}

.num {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--green);
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.step em { color: var(--green-dark); font-style: normal; }

.mockup img {
  width: 100%;
  max-width: 420px;
  display: block;
  margin: 0 auto;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.for-who p {
  font-size: 17px;
  margin-bottom: 12px;
}

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

.price-card {
  background: var(--card);
  border: 2px solid var(--green);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
}

.trial { font-size: 28px; color: var(--green-dark); margin-bottom: 4px; }
.no-card { color: var(--muted); margin-bottom: 16px; }
.price { font-size: 22px; font-weight: 600; margin-bottom: 4px; }
.plan-detail { color: var(--muted); margin-bottom: 12px; }
.comparison { font-size: 14px; color: var(--muted); font-style: italic; }

#leadForm {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

label {
  display: block;
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}

input, select {
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
  font-family: inherit;
  background: var(--card);
}

input:focus, select:focus {
  outline: none;
  border-color: var(--green);
}

button[type="submit"] { margin-top: 8px; }

#formStatus {
  margin-top: 16px;
  padding: 16px;
  border-radius: 8px;
  text-align: center;
  font-weight: 500;
}

#formStatus.success {
  background: #d1f4e0;
  color: var(--green-dark);
}

#formStatus.error {
  background: #fde2e2;
  color: #c0392b;
}

footer {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

@media (max-width: 480px) {
  main { padding: 24px 16px; }
  section { margin-bottom: 48px; }
}