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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4rem 1.5rem;
}

main {
  width: 100%;
  max-width: 680px;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.tagline {
  color: #94a3b8;
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.visitors {
  font-size: 0.85rem;
  color: #475569;
}

.whatsapp-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

section[data-section] {
  margin-top: 3rem;
  text-align: left;
}

section[data-section] h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #1e293b;
}

section[data-section] p {
  color: #94a3b8;
  line-height: 1.6;
}

section[data-section] ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: #94a3b8;
  line-height: 1.6;
}