:root {
  color-scheme: dark;
}

body {
  margin: 0;
  background: #0f172a;
  color: #e2e8f0;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.65;
}

.guia-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.guia-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid #1e293b;
  background: #0f172a;
  position: sticky;
  top: 0;
  z-index: 5;
}

.guia-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #f8fafc;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.05rem;
}

.guia-brand-mark {
  color: #34d399;
  font-size: 1.1rem;
}

.guia-nav {
  display: flex;
  gap: 18px;
}

.guia-nav a {
  color: #94a3b8;
  text-decoration: none;
  font-size: .95rem;
}

.guia-nav a:hover,
.guia-brand:hover {
  color: #34d399;
}

.guia-main {
  flex: 1;
  width: 100%;
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 20px 56px;
}

.guia-article {
  font-size: 1.02rem;
}

.guia-article h1 {
  font-size: 2rem;
  line-height: 1.25;
  color: #f8fafc;
  margin: 8px 0 14px;
}

.guia-article h2 {
  font-size: 1.35rem;
  color: #f8fafc;
  margin: 34px 0 10px;
}

.guia-article h3 {
  font-size: 1.1rem;
  color: #f1f5f9;
  margin: 22px 0 6px;
}

.guia-article p {
  margin: 10px 0;
}

.guia-article a {
  color: #34d399;
}

.guia-article ul,
.guia-article ol {
  margin: 10px 0 10px 24px;
}

.guia-article li {
  margin: 6px 0;
}

.guia-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0 18px;
  font-variant-numeric: tabular-nums;
}

.guia-article th,
.guia-article td {
  border: 1px solid #334155;
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}

.guia-article th {
  background: #1e293b;
  color: #f1f5f9;
  font-size: .92rem;
}

.guia-article blockquote,
.guia-article .guia-formula {
  background: #1e293b;
  border-left: 3px solid #34d399;
  border-radius: 6px;
  padding: 10px 16px;
  margin: 14px 0;
  font-family: ui-monospace, 'Cascadia Mono', monospace;
  font-size: .95rem;
  overflow-x: auto;
}

.guia-lead {
  font-size: 1.12rem;
  color: #cbd5e1;
}

.guia-meta {
  color: #94a3b8;
  font-size: .9rem;
  margin-bottom: 6px;
}

.guia-source {
  color: #cbd5e1;
  font-size: .92rem;
  border-left: 3px solid #334155;
  padding-left: 12px;
}

.guia-rating {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 12px 16px;
}

.guia-notes {
  color: #94a3b8;
  font-size: .88rem;
}

.guia-related {
  margin-top: 36px;
  border-top: 1px solid #1e293b;
  padding-top: 18px;
}

.guia-faq {
  margin-top: 34px;
  padding-top: 8px;
  border-top: 1px solid #1e293b;
}

.guia-related h2 {
  margin-top: 0;
}

.guia-cta {
  display: inline-block;
  background: #059669;
  color: #f0fdf4;
  text-decoration: none;
  font-weight: 600;
  border-radius: 8px;
  padding: 10px 18px;
  margin: 8px 0;
}

.guia-cta:hover {
  background: #10b981;
}

.guia-cards {
  list-style: none;
  margin: 20px 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.guia-cards a {
  display: block;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 14px 18px;
  text-decoration: none;
}

.guia-cards a:hover {
  border-color: #34d399;
  background: #16223a;
}

.guia-cards strong {
  color: #f8fafc;
  display: block;
}

.guia-cards span {
  color: #94a3b8;
  font-size: .93rem;
}

.guia-footer {
  border-top: 1px solid #1e293b;
  padding: 18px 24px;
  font-size: .9rem;
  color: #94a3b8;
}

.guia-footer a {
  color: #94a3b8;
}

.guia-footer a:hover {
  color: #34d399;
}

.guia-disclaimer {
  margin-top: 28px;
  color: #94a3b8;
  font-size: .88rem;
}

@media (max-width: 640px) {
  .guia-article h1 {
    font-size: 1.55rem;
  }
  .guia-article table {
    display: block;
    overflow-x: auto;
  }
}