:root {
  --bg: #0d0b0c;
  --bg2: #141113;
  --card: #171315;
  --line: #2a2226;
  --txt: #ece7de;
  --dim: #a89f96;
  --ac: #e0455a;
  --verde: #3f9d5a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ac); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- topo ---------- */

header.topo {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topo-linha {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  /* o atalho "14px 0 0" zerava as laterais e matava o respiro do .container */
  padding: 14px 20px 0;
}

.marca {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--txt);
}
.marca:hover { text-decoration: none; }

.wordmark {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.32em;
}

.wordmark .i {
  position: relative;
  display: inline-block;
}
.wordmark .i::after {
  content: "";
  position: absolute;
  top: -0.18em;
  left: 0.16em;
  width: 0.17em;
  height: 0.17em;
  border-radius: 50%;
  background: var(--ac);
}

nav.menu {
  display: flex;
  gap: 22px;
  font-size: 0.92rem;
  /* regra do dono: NADA encosta na lateral da tela — a rolagem vive dentro do respiro */
  width: 100%;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}
nav.menu::-webkit-scrollbar { display: none; }
nav.menu a { color: var(--dim); padding: 6px 0 10px; border-bottom: 2px solid transparent; }
nav.menu a:hover { color: var(--txt); text-decoration: none; }
nav.menu a.ativo { color: var(--txt); border-bottom-color: var(--ac); }

/* ---------- herói com arte ---------- */

.hero {
  display: grid;
  gap: 20px;
  align-items: center;
}
.hero .arte { order: -1; }

.arte {
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
}
.arte img {
  display: block;
  width: 100%;
  height: auto;
  -webkit-mask-image: radial-gradient(ellipse at center, black 55%, transparent 78%);
  mask-image: radial-gradient(ellipse at center, black 55%, transparent 78%);
}

@media (min-width: 820px) {
  .hero { grid-template-columns: 1.2fr 1fr; gap: 36px; }
  .hero .arte { order: 0; margin: 0 0 0 auto; }
}

/* ---------- blocos ---------- */

section { padding: 48px 0; }
section.alt { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

h1 {
  font-size: clamp(1.9rem, 5.5vw, 3.1rem);
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
h2 {
  font-size: clamp(1.4rem, 3.5vw, 1.9rem);
  margin: 0 0 14px;
}
h3 { font-size: 1.05rem; margin: 0 0 8px; }

.ac { color: var(--ac); }

p.sub {
  color: var(--dim);
  font-size: 1.08rem;
  max-width: 42em;
  margin: 0 0 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
}
.card p { color: var(--dim); font-size: 0.95rem; margin: 0; }

.grade {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .grade.c2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 820px) { .grade.c4 { grid-template-columns: repeat(4, 1fr); } .grade.c3 { grid-template-columns: repeat(3, 1fr); } }

/* ---------- botões ---------- */

.btn {
  display: inline-block;
  background: var(--ac);
  color: #fff;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
}
.btn:hover { text-decoration: none; filter: brightness(1.1); }

.btn-ghost {
  display: inline-block;
  color: var(--txt);
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.btn-ghost:hover { text-decoration: none; border-color: var(--dim); }

/* ---------- pilares ---------- */

.pilares {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
  text-align: center;
}
@media (min-width: 720px) { .pilares { grid-template-columns: repeat(4, 1fr); } }
.pilar {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 10px;
  background: var(--card);
}
.pilar b { display: block; font-size: 1.05rem; }
.pilar span { color: var(--dim); font-size: 0.85rem; }

/* ---------- diagrama ---------- */

.diagrama {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
}
.diagrama .coluna {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.diagrama .no {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  text-align: center;
  font-size: 0.92rem;
  color: var(--dim);
}
.diagrama .no b { display: block; color: var(--txt); }
.diagrama .no span { font-size: 0.8rem; }
.diagrama .nucleo {
  background: var(--ac);
  border: none;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  padding: 18px 14px;
}
.diagrama .seta {
  color: var(--ac);
  font-size: 1.4rem;
  text-align: center;
  align-self: center;
}
.diagrama .seta::before { content: "\2193"; }
@media (min-width: 720px) {
  .diagrama { flex-direction: row; align-items: center; gap: 14px; }
  .diagrama .seta::before { content: "\2192"; }
}

/* ---------- tabelas ---------- */

.rolagem { overflow-x: auto; }

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}
th, td {
  padding: 6px 9px;
  text-align: right;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
th { color: var(--dim); font-weight: 600; }
td.n, th.n { text-align: left; font-weight: 600; }
tr.destaque td { background: rgba(224, 69, 90, 0.08); }

.nota {
  color: var(--dim);
  font-size: 0.8rem;
  margin-top: 12px;
}

/* ---------- passos ---------- */

ol.passos {
  list-style: none;
  counter-reset: passo;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
ol.passos li {
  counter-increment: passo;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 18px 18px 64px;
  position: relative;
}
ol.passos li::before {
  content: counter(passo, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 18px;
  color: var(--ac);
  font-weight: 700;
  font-size: 1.2rem;
}
ol.passos b { display: block; margin-bottom: 4px; }
ol.passos span { color: var(--dim); font-size: 0.95rem; }

/* ---------- destaque de números ---------- */

.metricas {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .metricas { grid-template-columns: repeat(3, 1fr); } }
.metrica {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}
.metrica .valor {
  font-size: 2rem;
  font-weight: 700;
  color: var(--ac);
  line-height: 1.2;
}
.metrica .rotulo { color: var(--txt); font-weight: 600; margin-top: 4px; }
.metrica .detalhe { color: var(--dim); font-size: 0.85rem; margin-top: 4px; }

/* ---------- avisos ---------- */

.aviso {
  border: 1px solid var(--ac);
  border-radius: 12px;
  padding: 16px 20px;
  background: rgba(224, 69, 90, 0.07);
  font-size: 0.95rem;
}
.aviso b { color: var(--ac); }

/* ---------- CTA ---------- */

.cta-faixa {
  text-align: center;
  padding: 56px 0;
}
.cta-faixa h2 { margin-bottom: 8px; }
.cta-faixa p { color: var(--dim); margin: 0 0 22px; }

/* ---------- rodapé ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--dim);
  font-size: 0.85rem;
}
.rodape-linha {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  align-items: center;
}