/* Site público do Mahiru — CSS puro, sem framework, sem fonte externa.
   A faixa escura (#06100d) é o fundo do próprio logo; o verde esmeralda vem da hélice do símbolo.
   Cor que vira texto usa o passo que fecha 4.5:1 na superfície onde pousa. */

:root {
  color-scheme: light; /* explícito: o hero já é escuro por design, não herdamos o tema do sistema */
  --chrome: #06100d;
  --chrome-fg: #f2f7f4;
  --chrome-muted: #9fb5aa;
  --chrome-border: #1d352c;
  --brand-from: #16c784;
  --brand-to: #0f9d67;
  --fg: #102019;
  --muted: #53685e;
  --border: #d5e7de;
  --panel: #ffffff;
  --bg: #f5faf7;
  --code-bg: #0a1512;
  --largura: 1120px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; }

img { max-width: 100%; height: auto; display: block; }

code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.faixa { max-width: var(--largura); margin: 0 auto; padding: 0 20px; }

/* ---------- cabeçalho e hero (faixa escura) ---------- */

.escuro { background: var(--chrome); color: var(--chrome-fg); }

.topo {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 16px 20px; max-width: var(--largura); margin: 0 auto;
}
.topo img { width: 132px; }
.topo nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.topo nav a {
  padding: 8px 12px; border-radius: 8px; font-size: 14px;
  color: var(--chrome-muted); text-decoration: none;
}
.topo nav a:hover { color: var(--chrome-fg); background: rgb(255 255 255 / 8%); }

.hero { padding: 48px 20px 72px; max-width: var(--largura); margin: 0 auto; }
.hero p.olho {
  margin: 0 0 12px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--brand-from);
}
.hero h1 {
  margin: 0 0 16px; max-width: 20ch;
  font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.12; letter-spacing: -.02em; font-weight: 650;
}
.hero .destaque {
  background: linear-gradient(90deg, var(--brand-from), var(--brand-to));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub { margin: 0 0 32px; max-width: 62ch; font-size: clamp(1rem, 2vw, 1.15rem); color: var(--chrome-muted); }

.acoes { display: flex; flex-wrap: wrap; gap: 12px; }

.botao {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 10px 20px; border-radius: 10px;
  font-size: 15px; font-weight: 550; text-decoration: none; border: 1px solid transparent;
}
.botao-principal {
  background: linear-gradient(90deg, var(--brand-from), var(--brand-to));
  color: #06100d;
}
.botao-principal:hover { filter: brightness(1.08); }
.botao-fantasma { border-color: var(--chrome-border); color: var(--chrome-fg); background: rgb(255 255 255 / 5%); }
.botao-fantasma:hover { background: rgb(255 255 255 / 10%); }

/* fluxo: Frontend → Backend → Mahiru → provedores */
.fluxo {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--chrome-border);
  font-size: 13px; color: var(--chrome-muted);
}
.fluxo span {
  padding: 6px 12px; border: 1px solid var(--chrome-border); border-radius: 8px;
  background: rgb(255 255 255 / 4%); white-space: nowrap;
}
.fluxo span.nucleo {
  color: var(--chrome); font-weight: 650; border-color: transparent;
  background: linear-gradient(90deg, var(--brand-from), var(--brand-to));
}
.fluxo b { color: var(--chrome-muted); font-weight: 400; }

/* ---------- seções claras ---------- */

section { padding: 64px 0; }
section.alternada { background: var(--panel); border-block: 1px solid var(--border); }

h2 { margin: 0 0 8px; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.015em; font-weight: 640; }
.legenda { margin: 0 0 36px; max-width: 60ch; color: var(--muted); }

.grade { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.cartao {
  padding: 22px; border: 1px solid var(--border); border-radius: 14px; background: var(--panel);
}
section.alternada .cartao { background: var(--bg); }
.cartao h3 { margin: 0 0 8px; font-size: 1rem; font-weight: 620; }
.cartao p { margin: 0; font-size: 14.5px; color: var(--muted); }
.cartao .marca {
  display: inline-block; width: 26px; height: 3px; border-radius: 2px; margin-bottom: 14px;
  background: linear-gradient(90deg, var(--brand-from), var(--brand-to));
}

/* passos + snippet */
.integra { display: grid; gap: 32px; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 900px) { .integra { grid-template-columns: 0.85fr 1.15fr; } }

ol.passos { margin: 0; padding: 0; list-style: none; counter-reset: passo; }
ol.passos li { counter-increment: passo; position: relative; padding: 0 0 22px 46px; }
ol.passos li::before {
  content: counter(passo); position: absolute; left: 0; top: 0;
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 50%; background: var(--chrome); color: var(--chrome-fg);
  font-size: 14px; font-weight: 600;
}
ol.passos strong { display: block; margin-bottom: 2px; font-weight: 600; }
ol.passos p { margin: 0; font-size: 14.5px; color: var(--muted); }

pre.codigo {
  margin: 0; padding: 20px; border-radius: 14px; overflow-x: auto;
  background: var(--code-bg); color: #d5e7de; font-size: 13px; line-height: 1.65;
}
pre.codigo .cmt { color: #7d968b; }
pre.codigo .str { color: var(--brand-to); }
pre.codigo .key { color: var(--brand-from); }

/* provedores */
.provedores { display: flex; flex-wrap: wrap; gap: 10px; }
.provedores span {
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--panel); font-size: 14px;
}
.provedores span.planejado { color: var(--muted); border-style: dashed; }

/* chamada final */
.final { text-align: center; padding: 72px 20px; }
.final h2 { margin-bottom: 12px; }
.final .acoes { justify-content: center; }

/* rodapé */
footer { padding: 32px 0; border-top: 1px solid var(--border); font-size: 14px; color: var(--muted); }
footer .linhas { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; justify-content: space-between; }
footer a { text-decoration: none; }
footer a:hover { color: var(--fg); text-decoration: underline; }
footer nav { display: flex; flex-wrap: wrap; gap: 20px; }

/* ---------- página de documentação (markdown renderizado) ---------- */

.doc { max-width: 860px; margin: 0 auto; padding: 48px 20px 80px; }
.doc h1 { font-size: clamp(1.75rem, 4vw, 2.4rem); letter-spacing: -.02em; margin: 0 0 24px; }
.doc h2 { margin: 44px 0 12px; padding-top: 20px; border-top: 1px solid var(--border); }
.doc h3 { margin: 28px 0 8px; font-size: 1.1rem; }
.doc p, .doc li { color: #2b3a33; }
.doc a { color: #087a51; }
.doc pre {
  padding: 18px; border-radius: 12px; overflow-x: auto;
  background: var(--code-bg); color: #d5e7de; font-size: 13px; line-height: 1.6;
}
.doc :not(pre) > code {
  padding: 2px 6px; border-radius: 5px; background: #ecf6f1; font-size: .9em; word-break: break-word;
}
.doc table { width: 100%; border-collapse: collapse; font-size: 14.5px; display: block; overflow-x: auto; }
.doc th, .doc td { padding: 8px 12px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.doc th { background: var(--bg); font-weight: 600; }
.doc blockquote {
  margin: 20px 0; padding: 4px 18px; border-left: 3px solid var(--brand-from);
  color: var(--muted); background: var(--bg);
}
.doc hr { border: 0; border-top: 1px solid var(--border); margin: 32px 0; }

.aviso {
  margin: 0 0 28px; padding: 12px 16px; border-radius: 10px; font-size: 14px;
  border: 1px solid #c3ddd2; background: #ecf6f1; color: #2b4a3d;
}

/* ---------- erro ---------- */
.erro { display: grid; place-items: center; min-height: 70vh; text-align: center; padding: 40px 20px; }
.erro h1 { font-size: clamp(2rem, 6vw, 3rem); margin: 0 0 8px; }