:root {
  --bg: #0d0d0f;
  --bg-card: #17171b;
  --bg-elevated: #1f1f24;
  --text: #f2f0ec;
  --text-muted: #a3a1a0;
  --accent: #e2823c;
  --accent-hover: #ef9a5c;
  --border: #2a2a30;
  --border-soft: #232328;
  --line: #4a5568;
  --max: 720px;
  --max-wide: 1040px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: var(--max-wide); margin: 0 auto; padding: 0 24px; }

/* Topbar */
.topbar {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.topbar .wrap-wide { display: flex; align-items: center; justify-content: space-between; }
.topbar .marca { font-weight: 700; letter-spacing: -0.01em; text-decoration: none; color: var(--text); font-size: 1.05rem; }
.topbar .marca span { color: var(--accent); }
.topbar nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  margin-left: 24px;
}
.topbar nav a:hover, .topbar nav a.ativo { color: var(--text); }

/* Tipografia */
h1 { font-size: 2rem; line-height: 1.25; letter-spacing: -0.01em; margin: 0 0 20px; }
h2 { font-size: 1.5rem; margin: 0 0 4px; }
h3 { font-size: 1rem; margin: 28px 0 10px; }
p { color: var(--text); }

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
}

.lede { font-size: 1.1rem; color: var(--text-muted); margin: 0; }

/* Cards de listagem */
.grid-artigos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin: 32px 0 64px;
}
.card-artigo {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  text-decoration: none;
  display: block;
  transition: border-color 0.15s ease;
}
.card-artigo:hover { border-color: var(--line); }
.card-artigo .tag {
  display: inline-block;
  background: var(--bg-elevated);
  color: var(--accent);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-weight: 600;
}
.card-artigo h3 { color: var(--text); font-size: 1.1rem; margin: 0 0 8px; line-height: 1.35; }
.card-artigo .resumo-card { color: var(--text-muted); font-size: 0.9rem; margin: 0; }

/* Corpo do artigo */
.num-capitulo {
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  font-weight: 600;
}
.resumo {
  font-size: 1.15rem;
  font-weight: 500;
  margin: 16px 0 28px;
  padding-left: 16px;
  border-left: 3px solid var(--accent);
  color: var(--text);
}
ul.filtro { padding-left: 20px; margin: 0 0 20px; color: var(--text-muted); }
ul.filtro li { margin-bottom: 6px; }

.mecanismo {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 22px;
  margin: 20px 0 28px;
}
.mecanismo strong { display: block; margin-bottom: 6px; color: var(--accent); }

ol.passos { padding-left: 20px; margin: 0 0 24px; }
ol.passos li { margin-bottom: 16px; }
.erro { display: block; margin-top: 6px; font-size: 0.92rem; color: var(--text-muted); }

.checklist {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 22px;
}
.checklist p { margin: 0 0 10px; font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--accent); }
.checklist ul { list-style: none; padding: 0; margin: 0; }
.checklist li { margin-bottom: 8px; padding-left: 26px; position: relative; }
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: 3px;
  width: 16px; height: 16px;
  border: 1.5px solid var(--line);
  border-radius: 3px;
}

section.capitulo { border-top: 1px solid var(--border-soft); padding-top: 40px; margin-bottom: 56px; }
section.fechamento { border-top: 1px solid var(--border-soft); padding-top: 40px; }

.prova {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 22px;
  margin: 24px 0;
  font-size: 0.95rem;
}
.prova .numeros { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 12px; }
.prova .numeros div { min-width: 110px; }
.prova .numeros strong { display: block; font-size: 1.3rem; color: var(--accent); }
.prova .numeros span { font-size: 0.8rem; color: var(--text-muted); }

.cta-final {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  text-align: center;
  margin-top: 32px;
}
.cta-final h3 { color: var(--text); font-size: 1.2rem; margin-top: 0; }
.cta-final a.btn {
  display: inline-block;
  margin-top: 16px;
  background: var(--accent);
  color: #1a1004;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
}
.cta-final a.btn:hover { background: var(--accent-hover); }

footer.rodape { padding: 32px 0 64px; text-align: center; color: var(--text-muted); font-size: 0.85rem; border-top: 1px solid var(--border); margin-top: 40px; }

/* Gate */
.gate-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 13, 15, 0.78);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  overflow-y: auto;
  z-index: 100;
}
.conteudo-bloqueado { filter: blur(6px); pointer-events: none; user-select: none; }
.gate-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
  max-width: 420px;
  width: 100%;
  margin-top: 40px;
}
.gate-badge {
  display: inline-block;
  background: rgba(226, 130, 60, 0.15);
  color: var(--accent);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 14px;
}
.gate-card h2 { font-size: 1.3rem; margin: 0 0 8px; }
.gate-card .gate-sub { color: var(--text-muted); font-size: 0.88rem; margin: 0 0 22px; }
.campo { margin-bottom: 14px; }
.campo label { display: block; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 6px; }
.campo input, .campo select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 11px 12px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}
.campo input:focus, .campo select:focus { outline: none; border-color: var(--accent); }
.linha-telefone { display: flex; gap: 8px; }
.linha-telefone select { flex: 0 0 92px; }
.opcoes-desafio { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.opcao-desafio {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 10px 12px;
  cursor: pointer;
  font-size: 0.9rem;
}
.opcao-desafio input { margin: 0; }
.gate-submit {
  width: 100%;
  background: var(--accent);
  color: #1a1004;
  border: none;
  border-radius: 8px;
  padding: 14px;
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 6px;
}
.gate-submit:hover { background: var(--accent-hover); }
.gate-erro { color: #f28b6b; font-size: 0.85rem; margin-top: 10px; display: none; }

@media (max-width: 480px) {
  h1 { font-size: 1.6rem; }
  .topbar nav a { margin-left: 14px; font-size: 0.85rem; }
}