/* DigitAI — folha de estilo das páginas estáticas (institucional + blog).
   Mantém a identidade do app sem depender do bundle React/Tailwind. */

:root {
  --candy: #ff5fa2;
  --grape: #7a3cff;
  --sun: #ffd166;
  --grass: #2dd4a4;
  --mint: #b6f3df;
  --coral: #ff6b6b;
  --sky-1: #bde7ff;
  --sky-2: #e9f6ff;
  --ink: #1f2937;
  --ink-soft: #4b5563;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #f8fbff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Nunito', 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(60% 40% at 50% 0%, var(--sky-1) 0%, transparent 60%),
    var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* ---------- Topo / navegação ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-nav-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ink);
}
.site-brand .b-candy { color: var(--candy); }
.site-brand .b-grape { color: var(--grape); }
.site-nav ul {
  list-style: none;
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.site-nav a {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 0.9rem;
}
.site-nav a:hover {
  background: rgba(122, 60, 255, 0.08);
  text-decoration: none;
}
.site-nav .cta {
  background: linear-gradient(135deg, var(--candy), var(--grape));
  color: #fff;
  padding: 0.45rem 1rem;
}
.site-nav .cta:hover { filter: brightness(1.05); }

/* ---------- Layout ---------- */
.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
.page.wide { max-width: 960px; }

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 2.5rem 1rem 1rem;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw + 0.5rem, 2.6rem);
  margin: 0 0 0.5rem;
  line-height: 1.15;
}
.hero .lede {
  color: var(--ink-soft);
  font-size: 1.1rem;
  max-width: 620px;
  margin: 0 auto;
}

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
  font-family: inherit;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.25;
  margin-top: 1.8em;
  margin-bottom: 0.5em;
}
h1 { font-size: clamp(1.8rem, 3vw + 0.6rem, 2.4rem); margin-top: 0; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }
p, ul, ol { margin: 0 0 1rem; }
ul, ol { padding-left: 1.4rem; }
li { margin: 0.25rem 0; }
strong { color: var(--ink); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
blockquote {
  margin: 1.2rem 0;
  padding: 0.6rem 1.2rem;
  border-left: 4px solid var(--grape);
  background: rgba(122, 60, 255, 0.06);
  border-radius: 0 12px 12px 0;
  color: var(--ink-soft);
}
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: #f0e7ff;
  color: var(--grape);
  padding: 0.1em 0.35em;
  border-radius: 6px;
  font-size: 0.9em;
}

/* ---------- Cards e CTAs ---------- */
.callout {
  background: #fff;
  border-radius: 20px;
  padding: 1rem 1.25rem;
  box-shadow: 0 4px 20px rgba(31, 41, 55, 0.06);
  margin: 1.5rem 0;
}
.callout.tip {
  background: linear-gradient(135deg, rgba(45, 212, 164, 0.12), rgba(182, 243, 223, 0.45));
  border-left: 4px solid var(--grass);
}
.callout.warn {
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(255, 209, 102, 0.2));
  border-left: 4px solid var(--coral);
}

.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--candy), var(--grape));
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(122, 60, 255, 0.25);
}
.btn:hover { filter: brightness(1.05); text-decoration: none; }

/* ---------- Lista de artigos ---------- */
.article-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 720px) {
  .article-list { grid-template-columns: 1fr 1fr; }
}
.article-list li {
  background: #fff;
  border-radius: 20px;
  padding: 1rem 1.25rem;
  box-shadow: 0 4px 20px rgba(31, 41, 55, 0.06);
  margin: 0;
}
.article-list h3 { margin: 0 0 0.35rem; font-size: 1.1rem; }
.article-list h3 a { color: var(--ink); }
.article-list h3 a:hover { color: var(--grape); }
.article-list p { color: var(--ink-soft); margin: 0; font-size: 0.95rem; }

/* ---------- Metadados de artigo ---------- */
.article-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.article-meta time { font-weight: 700; }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 1rem;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--grape); }

/* ---------- Rodapé ---------- */
.site-footer {
  background: linear-gradient(180deg, transparent, rgba(122, 60, 255, 0.06));
  padding: 2rem 1rem 3rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
  border-top: 1px solid var(--line);
  margin-top: 3rem;
}
.site-footer ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 0.5rem 1.2rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 0 0 0.75rem;
}
.site-footer a { color: var(--ink-soft); font-weight: 600; }
.site-footer a:hover { color: var(--grape); }

/* ---------- Tabela de contato ---------- */
table.simple {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}
table.simple th, table.simple td {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--line);
}
table.simple th { color: var(--muted); font-weight: 700; }

/* ---------- Foco acessível ---------- */
:focus-visible {
  outline: 3px solid var(--grape);
  outline-offset: 2px;
  border-radius: 6px;
}