:root {
  --bg: #f8f9ff;
  --card: #ffffff;
  --ink: #0b1c30;
  --ink-soft: #445268;
  --line: #c9d5ea;
  --primary: #0051d5;
  --primary-strong: #003ea8;
  --success: #1a9b5f;
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow: 0 28px 42px -30px rgba(15, 23, 42, 0.45);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  background:
    radial-gradient(820px 340px at 4% -8%, rgba(0, 81, 213, 0.12), transparent 62%),
    radial-gradient(760px 360px at 96% 0%, rgba(0, 81, 213, 0.08), transparent 58%),
    var(--bg);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(248, 249, 255, 0.9);
  border-bottom: 1px solid #dde6f8;
}

.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  min-height: 76px;
  padding: 0 20px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
}

.brand {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.top-links { display: flex; justify-content: center; gap: 16px; }
.top-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 700;
  border-bottom: 2px solid transparent;
}
.top-links a:hover, .top-links a.is-current { color: var(--primary); border-bottom-color: var(--primary); }

.top-actions { display: flex; align-items: center; gap: 10px; }
.link-plain { color: var(--ink); text-decoration: none; font-weight: 700; }
.menu-toggle { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  padding: 12px 18px;
  font-weight: 700;
  text-decoration: none;
  border: 0;
}
.btn-primary { background: linear-gradient(130deg, var(--primary) 0%, #276af2 100%); color: #fff; }
.btn-primary:hover { background: linear-gradient(130deg, var(--primary-strong) 0%, #1a59d9 100%); }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: #edf4ff; }
.btn-whatsapp { background: #25d366; color: #fff; }
.btn-light { background: #fff; color: var(--ink); }

main { max-width: 1200px; margin: 0 auto; padding: 30px 20px 64px; }

.hero {
  text-align: center;
  border-radius: 32px;
  padding: 54px 24px;
  background: linear-gradient(155deg, #ffffff 0%, #edf4ff 58%, #e2eeff 100%);
  box-shadow: var(--shadow);
}
.kicker {
  margin: 0 0 10px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  font-size: 0.8rem;
}
h1, h2, h3 { font-family: "Plus Jakarta Sans", sans-serif; margin: 0; }
h1 { font-size: clamp(2rem, 4.6vw, 3.6rem); letter-spacing: -0.02em; }
.lead {
  max-width: 54ch;
  margin: 14px auto 0;
  color: var(--ink-soft);
  font-size: clamp(1.03rem, 1.6vw, 1.2rem);
}
.hero-note {
  margin: 18px auto 0;
  display: inline-block;
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  font-weight: 700;
  color: #113564;
  background: #dce9ff;
}

.pricing-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.plan-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.plan-card-featured {
  border: 2px solid var(--primary);
  transform: translateY(-4px);
}
.badge {
  align-self: center;
  margin: -4px 0 8px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.78rem;
}
.price {
  margin: 8px 0 16px;
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 800;
  color: var(--primary);
  font-size: 2rem;
}
.price span { color: var(--ink-soft); font-weight: 600; font-size: 1rem; }
.plan-card ul { margin: 0; padding-left: 18px; color: var(--ink-soft); display: grid; gap: 10px; flex: 1; }
.plan-card .btn { margin-top: 18px; }

.rules, .audience, .faq, .cta {
  margin-top: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 28px;
}
.rules h2, .audience h2, .faq h2, .cta h2 { font-size: clamp(1.45rem, 2.7vw, 2.2rem); }
.rules ul { margin: 14px 0 0; padding-left: 18px; color: var(--ink-soft); display: grid; gap: 10px; }

.audience-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.audience article {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  background: #f8fbff;
}
.audience h3 { font-size: 1.16rem; }
.audience p { margin: 8px 0 0; color: var(--ink-soft); }

.faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 0 16px;
  background: #fbfcff;
}
.faq details + details { margin-top: 10px; }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 0;
  font-weight: 700;
}
.faq summary::-webkit-details-marker { display: none; }
.faq p { margin: 0 0 14px; color: var(--ink-soft); }

.cta {
  text-align: center;
  color: #e9f1ff;
  background: linear-gradient(150deg, #0d2144 0%, #124188 72%, #1f63cf 100%);
}
.cta h2 { color: #fff; }
.cta p { margin: 12px auto 0; max-width: 50ch; }
.cta-actions {
  margin-top: 18px;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.footer {
  max-width: 1200px;
  margin: 0 auto 20px;
  padding: 0 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  color: var(--ink-soft);
}
.footer a { color: inherit; font-weight: 600; }

.hidden { display: none !important; }

@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .plan-card-featured { transform: none; }
  .audience-grid { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .topbar-inner {
    grid-template-columns: auto auto;
    grid-template-areas:
      "brand menu"
      "links links"
      "actions actions";
    padding-top: 12px;
    padding-bottom: 12px;
  }
  .brand { grid-area: brand; }
  .menu-toggle {
    grid-area: menu;
    justify-self: end;
    display: inline-flex;
    border: 0;
    border-radius: var(--radius-pill);
    background: #e8effd;
    color: var(--ink);
    padding: 8px 12px;
    font-weight: 700;
  }
  .top-links {
    grid-area: links;
    display: none;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
  .top-links.is-open { display: flex; }
  .top-actions { grid-area: actions; justify-content: flex-start; }
}