:root {
  --black: #020617;
  --graphite: #0f172a;
  --gray-dark: #1f2937;
  --gray-light: #cbd5e1;
  --white: #ffffff;
  --blue: #2563eb;
  --green: #16a34a;
  --green-dark: #15803d;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: var(--black);
  color: var(--gray-light);
  line-height: 1.6;
}
.container { width: min(1120px, 92%); margin: 0 auto; }
.narrow { width: min(820px, 92%); }
.header {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(10px);
  background: rgba(2, 6, 23, 0.85);
  border-bottom: 1px solid rgba(203, 213, 225, 0.12);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 0; }
.brand { color: var(--white); text-decoration: none; font-weight: 800; letter-spacing: 0.6px; }
.nav { display: flex; gap: 1rem; align-items: center; }
.nav a { color: var(--gray-light); text-decoration: none; }
.btn {
  display: inline-block; border-radius: 999px; padding: 0.7rem 1.2rem; text-decoration: none;
  font-weight: 700; transition: 0.25s ease; border: 1px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--blue); color: var(--white); }
.btn-ghost { color: var(--white); border-color: rgba(255,255,255,0.35); }
.btn-dark { background: var(--gray-dark); color: var(--white); }
.btn-success { background: var(--green); color: var(--white); }
.btn-success:hover { background: var(--green-dark); }
.hero { padding: 4rem 0 3rem; background: linear-gradient(145deg, var(--black), var(--graphite)); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2rem; align-items: center; }
.eyebrow { color: #93c5fd; font-weight: 700; }
h1, h2, h3, h4 { color: var(--white); margin-top: 0; }
h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 0.25rem; }
h2 { font-size: clamp(1.1rem, 2.7vw, 1.5rem); font-weight: 500; margin-bottom: 1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.2rem; }
.mockup {
  background: #0b1225; border: 1px solid rgba(203, 213, 225, 0.2); border-radius: 1rem;
  padding: 1rem; box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}
.mockup-top { height: 1.2rem; border-radius: 999px; background: linear-gradient(90deg, #334155, #64748b); margin-bottom: 1rem; }
.mockup-body { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.7rem; }
.mockup-card, .mockup-chart { border-radius: 0.7rem; background: linear-gradient(180deg, #1e293b, #0f172a); min-height: 70px; }
.mockup-chart { grid-column: span 2; min-height: 90px; }
.section { padding: 3.5rem 0; }
.grid { display: grid; gap: 1rem; }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--graphite); border: 1px solid rgba(203, 213, 225, 0.12); border-radius: 0.9rem;
  padding: 1rem; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}
.audience-list {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0.6rem;
  list-style: none; padding: 0; margin: 0;
}
.audience-list li { background: var(--graphite); padding: 0.8rem; border-radius: 0.65rem; }
.steps { padding-left: 1.2rem; }
.support-text { color: #94a3b8; }
.plans { grid-template-columns: repeat(3, 1fr); align-items: stretch; }
.price { font-size: 1.2rem; font-weight: 800; color: var(--white); }
.plan.mensal { background: #111827; }
.plan.trimestral { border-color: rgba(37, 99, 235, 0.45); }
.plan.featured {
  border: 2px solid var(--green); transform: scale(1.02); background: linear-gradient(180deg, #062f1a, #0f172a);
}
.badge {
  display: inline-block; background: var(--green); color: var(--white); font-weight: 700;
  padding: 0.25rem 0.65rem; border-radius: 999px; font-size: 0.8rem;
}
.saving { color: #86efac; font-weight: 700; }
.notice { border-left: 4px solid #22c55e; padding-left: 1rem; }
.faq-item { border-bottom: 1px solid rgba(203, 213, 225, 0.18); }
.faq-q {
  width: 100%; text-align: left; background: transparent; border: 0; color: var(--white);
  font-size: 1rem; font-weight: 700; padding: 1rem 0; cursor: pointer;
}
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-a { max-height: 200px; }
.footer { padding: 2.2rem 0; background: #01040f; border-top: 1px solid rgba(203,213,225,.12); }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer a { color: var(--gray-light); text-decoration: none; }
.menu-toggle, .to-top { display: none; }

@media (max-width: 980px) {
  .hero-grid, .grid-3, .grid-5, .plans { grid-template-columns: 1fr 1fr; }
  .grid-5 article:last-child { grid-column: span 2; }
}
@media (max-width: 760px) {
  .menu-toggle {
    display: inline-flex; flex-direction: column; gap: 4px; background: transparent; border: 0; cursor: pointer;
  }
  .menu-toggle span { width: 22px; height: 2px; background: var(--white); }
  .nav {
    position: absolute; top: 64px; left: 0; right: 0; background: var(--graphite);
    display: none; flex-direction: column; padding: 1rem;
  }
  .nav.open { display: flex; }
  .hero-grid, .grid-3, .grid-5, .plans { grid-template-columns: 1fr; }
  .grid-5 article:last-child { grid-column: auto; }
  .btn { width: 100%; text-align: center; }
  .to-top {
    display: inline-flex; align-items: center; justify-content: center;
    position: fixed; right: 14px; bottom: 14px; width: 42px; height: 42px;
    border: 0; border-radius: 50%; background: var(--blue); color: white; cursor: pointer;
    box-shadow: 0 8px 20px rgba(0,0,0,.35);
  }
}