* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, "Segoe UI", Arial, sans-serif;
  color: #eef2f5;
}

body {
  background:
    radial-gradient(
      circle at top left,
      rgba(91, 221, 151, 0.16),
      transparent 38%
    ),
    linear-gradient(
      180deg,
      #1b2129 0%,
      #14181e 45%,
      #0d1013 100%
    );
  background-attachment: fixed;
  min-height: 100vh;
}

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

.cm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;

  padding: 18px 32px;
  background: rgba(29, 36, 44, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
}

.cm-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
}

.cm-logo {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(107, 232, 155, 0.55);
  background: rgba(18, 28, 24, 0.7);
  color: #78ed9d;

  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
}

.cm-nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid rgba(111, 234, 155, 0.4);
  font-size: 13px;
  font-weight: 700;
  color: #b9ffd0;
}

.cm-nav-link:hover {
  background: rgba(111, 234, 155, 0.1);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.cm-hero {
  text-align: center;
  padding: 96px 16px 72px;
}

.cm-hero h1 {
  font-size: 40px;
  font-weight: 800;
  max-width: 680px;
  margin: 0 auto 18px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  background: linear-gradient(180deg, #f5f7fa 0%, #cfd6dd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.cm-hero-sub {
  max-width: 560px;
  margin: 0 auto 34px;
  color: #9fa8b4;
  font-size: 16px;
  line-height: 1.6;
}

.cm-botao-principal {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 12px;

  background: linear-gradient(180deg, #6fea9b 0%, #2fae63 100%);
  color: #0e1a12;
  font-weight: 800;
  font-size: 15px;

  box-shadow: 0 10px 26px rgba(87, 235, 134, 0.28);
}

.cm-botao-principal:hover {
  filter: brightness(1.07);
}

.cm-botao-desabilitado {
  background: rgba(255, 255, 255, 0.07);
  color: #8a94a0;
  box-shadow: none;
  cursor: default;
}

.cm-botao-desabilitado:hover {
  filter: none;
}

.cm-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-bottom: 84px;
}

.cm-feature {
  background: rgba(45, 54, 65, 0.5);
  border: 1px solid rgba(139, 151, 165, 0.2);
  border-radius: 14px;
  padding: 24px 18px;

  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.cm-feature-icone {
  width: 38px;
  height: 38px;
  border-radius: 10px;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 18px;
  margin-bottom: 14px;

  background: rgba(87, 235, 134, 0.1);
  border: 1px solid rgba(111, 234, 155, 0.3);
}

.cm-feature h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.cm-feature p {
  margin: 0;
  font-size: 13.5px;
  color: #9fa8b4;
  line-height: 1.5;
}

.cm-footer {
  display: flex;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
  color: #6b7684;
  font-size: 12.5px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

@media (max-width: 720px) {
  .cm-features {
    grid-template-columns: 1fr;
  }

  .cm-hero h1 {
    font-size: 28px;
  }
}