:root {
  /* Cor principal */
  --primary: #22c55e;
  --primary-hover: #16a34a;
  --primary-soft: #14532d;

  /* Fundos */
  --bg-main: #0a120d;
  --bg-card: #101914;
  --bg-card-2: #16211b;
  --bg-element: #0f1712;
  --bg-element-2: #1a261e;

  /* Texto */
  --text-main: #ffffff;
  --text-soft: #b7cbbd;
  --text-muted: #8aa091;
  --text-footer: #738879;

  /* Botões secundários */
  --btn-secondary: #18231c;
  --btn-secondary-hover: #223127;

  /* Sombras */
  --shadow-soft: 0 10px 28px rgba(0, 0, 0, 0.25);
  --shadow-strong: 0 12px 36px rgba(0, 0, 0, 0.35);
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}

.brand {
  font-size: 22px;
  font-weight: bold;
  color: var(--text-main);
  text-decoration: none;
}

.topbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-weight: bold;
  transition: 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

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

.btn-secondary {
  background: var(--btn-secondary);
  color: #fff;
}

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

.hero {
  padding: 44px 0 26px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 26px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: 52px;
  line-height: 1.05;
}

.hero p {
  margin: 0 0 22px;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.6;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

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

.preview-card {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-card-2));
  border-radius: 26px;
  padding: 22px;
  box-shadow: var(--shadow-strong);
}

.preview-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.preview-avatar {
  width: 62px;
  height: 62px;
  border-radius: 18px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
}

.preview-title {
  font-size: 26px;
  font-weight: bold;
}

.preview-subtitle {
  color: var(--text-soft);
  font-size: 14px;
  margin-top: 4px;
}

.preview-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.preview-tab {
  background: var(--bg-element-2);
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
}

.preview-tab.active {
  background: var(--primary);
  color: #fff;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.preview-link {
  background: var(--bg-element);
  border-radius: 18px;
  min-height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 14px;
  color: #fff;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.section {
  padding: 34px 0;
}

.section h2 {
  margin: 0 0 18px;
  font-size: 34px;
}

.section-intro {
  margin: 0 0 24px;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.6;
  max-width: 760px;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--shadow-soft);
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.feature-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.6;
  font-size: 15px;
}

.plans {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.plan-card {
  background: var(--bg-card);
  border-radius: 22px;
  padding: 22px;
  box-shadow: var(--shadow-soft);
}

.plan-card h3 {
  margin: 0 0 10px;
  font-size: 24px;
}

.plan-card .plan-price {
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 14px;
}

.plan-card p {
  margin: 0 0 14px;
  color: var(--text-soft);
  line-height: 1.6;
}

.plan-list {
  margin: 0;
  padding-left: 18px;
  color: #fff;
  line-height: 1.8;
}

.cta {
  padding: 40px 0 60px;
}

.cta-box {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-card-2));
  border-radius: 28px;
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-strong);
}

.cta-box h2 {
  margin: 0 0 12px;
  font-size: 34px;
}

.cta-box p {
  margin: 0 0 22px;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.6;
}

.footer {
  padding: 24px 0 40px;
  text-align: center;
  color: var(--text-footer);
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-grid,
  .features,
  .plans {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 40px;
  }

  .preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero h1 {
    font-size: 34px;
  }

  .preview-grid {
    grid-template-columns: 1fr 1fr;
  }
}