/* ════════════════════════════════════════════════════════════════════
   DESIGN SYSTEM · CAMADA 3 — COMPONENTES (tema: Template 01 · Sereno)
   ════════════════════════════════════════════════════════════════════
   Todos os componentes do site, consumindo apenas tokens (tokens.css).
   Nenhum valor de cor/raio/sombra é cravado aqui — mude em tokens.css.

   Índice:
   1. Navegação (todas as páginas)
   2. Botões (padrão compartilhado + variantes)
   3. Home · hero
   4. Home · seções (problema, framework, comparação, jornada, explore)
   5. Páginas internas · layout doc (sidebar + coluna de leitura)
   6. Páginas internas · conteúdo (callouts, tabelas, código, listas)
   7. Hub da metodologia (hero, jornada, princípios, banda de CTA)
   8. Responsivo
   ════════════════════════════════════════════════════════════════════ */


/* ── 1. NAVEGAÇÃO ────────────────────────────────────────────────── */

.site-nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem var(--pad-x);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
/* No index (body sem .doc) o header não acompanha o scroll */
body:not(.doc) .site-nav { position: static; }
.nav-logo {
  display: flex; align-items: center; gap: 0.55rem;
  font-size: 1.2rem; font-weight: 800; letter-spacing: var(--ls-tight);
  color: var(--text); text-decoration: none;
}
.nav-logo svg { width: 34px; height: 20px; }
.nav-logo span { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 1.6rem; }
.nav-link {
  color: var(--muted); font-size: var(--fs-sm); font-weight: 600;
  text-decoration: none;
}
.nav-link:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }


/* ── 2. BOTÕES ───────────────────────────────────────────────────── */

/* padrão compartilhado de todos os botões */
.nav-cta, .hero-cta, .explore-btn, .req-btn, .cta-btn {
  display: inline-block; font-weight: 700; text-decoration: none;
  background: var(--accent); color: var(--on-accent);
}
.nav-cta:hover, .hero-cta:hover, .req-btn:hover {
  background: var(--accent-dark); color: var(--on-accent);
}

.nav-cta  { padding: 0.6rem 1.4rem;  border-radius: var(--radius-md); font-size: var(--fs-sm); }
.hero-cta { padding: 1rem 2.4rem;    border-radius: var(--radius-lg); font-size: 1.1rem; box-shadow: var(--shadow-cta); }
.req-btn  { padding: 0.6rem 1.3rem;  border-radius: var(--radius-md); font-size: 0.92rem; margin-top: 0.8rem; }

/* variantes sobre fundo escuro (seção explore e banda de CTA) */
.explore-btn, .cta-btn {
  background: var(--bg); color: var(--accent-dark);
  padding: 0.95rem 2rem; border-radius: var(--radius-lg); font-size: var(--fs-md);
}
.explore-btn:hover, .cta-btn:hover { background: var(--on-dark-soft); color: var(--accent-dark); }
.explore-btn.secondary {
  background: transparent; color: var(--on-accent);
  border: 2px solid rgba(255, 255, 255, 0.6);
}
.explore-btn.secondary:hover { background: rgba(255, 255, 255, 0.12); color: var(--on-accent); }


/* ── 3. HOME · HERO ──────────────────────────────────────────────── */

body:not(.doc) section { padding: var(--pad-section) var(--pad-x); }
section.alt { background: var(--bg-alt); }
.container { max-width: var(--w-container); margin: 0 auto; }
.section-label {
  font-size: var(--fs-2xs); font-weight: 700; letter-spacing: var(--ls-overline);
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 0.8rem;
}

#hero {
  text-align: center;
  padding: 6rem var(--pad-x) 5rem;
  max-width: 60rem; margin: 0 auto;
}
.hero-tagline {
  display: inline-block;
  font-size: 0.85rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent);
  background: var(--bg-alt); border: 1px solid var(--border);
  padding: 0.4rem 1rem; border-radius: var(--radius-pill);
  margin-bottom: 1.8rem;
}
.hero-headline {
  font-size: var(--fs-display);
  font-weight: 800; line-height: 1.1;
  margin-bottom: 1.5rem;
}
.hero-headline em { font-style: normal; color: var(--accent); }
.hero-sub {
  font-size: var(--fs-lead);
  color: var(--muted); max-width: 38rem;
  margin: 0 auto 2.5rem;
}
.hero-visual { margin: 3rem auto 0; max-width: 460px; }
.hero-visual .inf-label {
  fill: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: 0.16em;
}


/* ── 4. HOME · SEÇÕES ────────────────────────────────────────────── */

/* problema */
.problem-grid {
  display: grid; grid-template-columns: 1.2fr 1fr;
  gap: 3.5rem; align-items: center; margin-top: 2rem;
}
.problem-grid p { color: var(--muted); margin-bottom: 1.2rem; }
.problem-grid p strong { color: var(--text); }
.problem-highlight {
  background: var(--card); border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 14px; padding: 2rem;
  box-shadow: var(--shadow-card);
}
.problem-highlight .quote {
  font-size: 1.12rem; font-weight: 500; font-style: italic;
  line-height: 1.7; margin-bottom: 1rem;
}
.problem-highlight .source { font-size: 0.85rem; color: var(--muted); }
.problem-highlight .source a { color: inherit; }

/* framework */
.framework-intro {
  display: grid; grid-template-columns: 1.3fr 1fr;
  gap: 3.5rem; align-items: center; margin-top: 2rem;
}
.framework-intro p { color: var(--muted); margin-bottom: 1.2rem; }
.framework-intro strong { color: var(--text); }
.framework-stat {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 2rem; text-align: center;
  box-shadow: var(--shadow-card);
}
.framework-stat + .framework-stat { margin-top: 1.2rem; }
.stat-number { font-size: 3.2rem; font-weight: 800; color: var(--accent); line-height: 1.1; }
.stat-label { color: var(--muted); margin-top: 0.5rem; font-size: var(--fs-sm); }

/* comparação */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.8rem; margin-top: 2rem; }
.compare-col {
  border-radius: var(--radius-xl); padding: 2rem;
  border: 1px solid var(--border); background: var(--card);
}
.compare-col.new { border: 2px solid var(--accent); }
.compare-head { font-size: 1.25rem; font-weight: 800; margin-bottom: 0.3rem; }
.compare-col.old .compare-head { color: var(--muted); }
.compare-col.new .compare-head { color: var(--accent); }
.compare-sub { font-size: var(--fs-xs); color: var(--muted); margin-bottom: 1.4rem; }
.compare-list { list-style: none; }
.compare-list li {
  display: flex; gap: 0.7rem; align-items: flex-start;
  padding: 0.7rem 0; border-top: 1px solid var(--border);
  font-size: 0.98rem; color: var(--muted);
}
.compare-list li:first-child { border-top: none; }
.ico { flex-shrink: 0; font-weight: 700; }
.compare-col.old .ico { color: var(--no); }
.compare-col.new .ico { color: var(--ok); }
.compare-col.new .compare-list li { color: var(--text); }

/* jornada */
.journey-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; margin-top: 2rem; }
.step-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 2rem;
  box-shadow: var(--shadow-card);
}
.step-card.active { border: 2px solid var(--accent); }
.step-number {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent); color: var(--on-accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; margin-bottom: 1.3rem;
}
.step-level {
  font-size: var(--fs-overline); font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 0.4rem;
}
.step-title { font-size: 1.3rem; font-weight: 800; margin-bottom: 0.5rem; }
.step-quote { font-size: var(--fs-sm); font-style: italic; color: var(--accent-dark); margin-bottom: 0.9rem; }
.step-desc { color: var(--muted); font-size: 0.96rem; margin-bottom: 1.2rem; }
.step-criterion {
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 0.9rem;
  font-size: var(--fs-xs); color: var(--muted);
}
.step-criterion strong { color: var(--accent-dark); display: block; margin-bottom: 0.2rem; }

/* faq */
#faq .faq-list { margin-top: 2rem; max-width: 46rem; }
#faq details { border-bottom: 1px solid var(--border); padding: 1.1rem 0; }
#faq summary { font-weight: 700; cursor: pointer; list-style-position: outside; }
#faq summary:hover { color: var(--accent-dark); }
#faq details p { color: var(--muted); margin-top: 0.7rem; }

/* explore (banda escura da home) */
#explore { background: var(--accent-dark); text-align: center; color: var(--on-accent); }
#explore .section-label { color: var(--on-dark-softer); }
#explore h2 { color: var(--on-accent); }
#explore p.lead { color: var(--on-dark-soft); max-width: 34rem; margin: 0 auto 2rem; }
.explore-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1.2rem; }
.explore-support { color: var(--on-dark-softer); font-size: 0.9rem; }


/* ── 5. PÁGINAS INTERNAS · LAYOUT DOC ────────────────────────────── */

.doc-layout {
  max-width: var(--w-doc); margin: 0 auto;
  display: grid; grid-template-columns: 260px 1fr;
  gap: 3.5rem; padding: 3rem var(--pad-x) 4rem;
}
.doc-sidebar { position: sticky; top: 5.5rem; align-self: start; height: max-content; }
.side-title {
  font-size: var(--fs-overline); font-weight: 700; letter-spacing: var(--ls-overline);
  text-transform: uppercase; color: var(--accent); margin-bottom: 1rem;
}
.doc-nav { list-style: none; display: flex; flex-direction: column; gap: 0.15rem; }
.doc-nav a {
  display: block; color: var(--muted); text-decoration: none;
  padding: 0.5rem 0.8rem; border-radius: var(--radius-sm);
  font-size: 0.92rem; font-weight: 500;
  border-left: 3px solid transparent;
}
.doc-nav a:hover { color: var(--text); background: var(--bg-alt); }
.doc-nav a.active {
  color: var(--accent-dark); background: var(--bg-alt);
  border-left-color: var(--accent); font-weight: 700;
}
.doc-nav .step-idx { color: var(--accent); font-weight: 700; margin-right: 0.4rem; }
.doc-nav .sub { padding-left: 1.7rem; font-size: 0.86rem; }

.doc-main { min-width: 0; max-width: var(--w-doc-main); }

.breadcrumb { font-size: var(--fs-xs); color: var(--muted); margin-bottom: 1.2rem; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.level-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent-dark);
  background: var(--bg-alt); border: 1px solid var(--border);
  padding: 0.35rem 0.9rem; border-radius: var(--radius-pill); margin-bottom: 1.1rem;
}

/* tipografia de artigo */
.doc-main h1 {
  font-size: var(--fs-h1-doc); font-weight: 800;
  line-height: 1.15; margin-bottom: 1rem;
}
.doc-main .lead { font-size: var(--fs-lead-doc); color: var(--muted); margin-bottom: 2.2rem; }
.doc-main h2 {
  font-size: var(--fs-h2-doc); font-weight: 800;
  margin: 3rem 0 1rem; padding-top: 1rem; scroll-margin-top: 6rem;
}
.doc-main h3 { font-size: var(--fs-h3-doc); font-weight: 700; margin: 1.8rem 0 0.7rem; }
.doc-main p { color: var(--muted); margin-bottom: 1.1rem; }
.doc-main strong { color: var(--text); font-weight: 700; }
.doc-main ul, .doc-main ol { color: var(--muted); margin: 0 0 1.2rem 1.3rem; }
.doc-main li { margin-bottom: 0.5rem; }
.section-intro { font-size: 1.05rem; }
.time-tag { color: var(--muted); font-size: 0.9rem; font-weight: 500; }


/* ── 6. PÁGINAS INTERNAS · CONTEÚDO ──────────────────────────────── */

/* passo numerado (instruções) */
.step { display: flex; gap: 1.1rem; margin: 1.6rem 0; }
.step-num {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: var(--on-accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: var(--fs-sm);
}
.step-body { flex: 1; min-width: 0; }
.step-body h3 { margin-top: 0.2rem; }
.step-body p:last-child { margin-bottom: 0; }

/* callouts */
.callout {
  background: var(--bg-alt); border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-lg); padding: 1.3rem 1.5rem; margin: 1.6rem 0;
}
.callout-label {
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent-dark); margin-bottom: 0.4rem;
}
.callout p:last-child { margin-bottom: 0; }
.callout.principle { border-left-color: var(--accent); }
.callout.tip { border-left-color: var(--ok); }
.callout.tip .callout-label { color: var(--ok); }
.callout.key {
  background: var(--accent-soft);
  border-color: var(--accent-soft-border); border-left-color: var(--accent);
}
.callout.warn { border-left-color: var(--warn-border); }
.callout.warn .callout-label { color: var(--warn); }
.callout.req {
  background: var(--no-soft);
  border-color: var(--no-soft-border); border-left-color: var(--no);
}
.callout.req .callout-label { color: var(--no); }
.callout .big-quote { font-size: 1.15rem; color: var(--text); font-style: italic; line-height: 1.6; }

/* tabela */
.doc-table { width: 100%; border-collapse: collapse; margin: 1.4rem 0; font-size: var(--fs-sm); }
.doc-table th, .doc-table td {
  text-align: left; padding: 0.75rem 0.9rem;
  border: 1px solid var(--border); vertical-align: top;
}
.doc-table th { background: var(--bg-alt); color: var(--text); font-weight: 700; }
.doc-table td { color: var(--muted); }
.doc-table tr:nth-child(even) td { background: var(--bg-zebra); }

/* bloco de comando / código */
.prompt {
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 1.1rem 1.3rem; margin: 1.2rem 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs); color: var(--text); line-height: 1.6;
}
.prompt-label {
  display: block; font-family: var(--font-sans);
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem;
}

/* checklist de conclusão */
.checklist { list-style: none; margin-left: 0 !important; }
.checklist li {
  display: flex; gap: 0.7rem; align-items: flex-start;
  padding: 0.6rem 0; border-top: 1px solid var(--border);
}
.checklist li:first-child { border-top: none; }
.checklist .ck { color: var(--ok); flex-shrink: 0; font-weight: 700; }

/* navegação anterior/próximo */
.pager {
  display: flex; justify-content: space-between; gap: 1rem;
  margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.pager a {
  flex: 1; min-width: 220px;
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.1rem 1.3rem; text-decoration: none;
}
.pager a:hover { border-color: var(--accent); }
.pager .dir { font-size: var(--fs-overline); color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }
.pager .pg-title { display: block; color: var(--text); font-weight: 700; margin-top: 0.2rem; }
.pager .next { text-align: right; }


/* ── 7. HUB DA METODOLOGIA ───────────────────────────────────────── */

.doc-hero { padding: 3.5rem var(--pad-x) 1.5rem; max-width: var(--w-hub); margin: 0 auto; }
.eyebrow {
  font-size: var(--fs-2xs); font-weight: 700; letter-spacing: var(--ls-overline);
  text-transform: uppercase; color: var(--accent); margin-bottom: 1rem;
}
.doc-hero h1 {
  font-size: var(--fs-h1-hub); font-weight: 800;
  line-height: 1.1; margin-bottom: 1.2rem;
}
.doc-hero .lead { font-size: 1.2rem; color: var(--muted); max-width: 680px; }

.hub-section { max-width: var(--w-hub); margin: 0 auto; padding: 1.5rem var(--pad-x) 0; }

.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin: 2rem 0; }
.path-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 1.8rem; display: block;
  text-decoration: none; box-shadow: var(--shadow-card);
}
.path-card:hover { border-color: var(--accent); box-shadow: var(--shadow-card-hover); }
.pc-level { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.pc-title { font-size: 1.25rem; font-weight: 800; color: var(--text); margin: 0.3rem 0 0.5rem; }
.pc-desc { font-size: 0.92rem; color: var(--muted); }
.pc-go { display: inline-block; margin-top: 1rem; color: var(--accent); font-weight: 700; font-size: 0.9rem; }

.principles-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin: 2rem 0; }
.principle-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.5rem;
  box-shadow: var(--shadow-card);
}
.principle-card .pn { font-size: 0.78rem; font-weight: 700; color: var(--accent); margin-bottom: 0.4rem; }
.principle-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--text); }
.principle-card p { font-size: 0.9rem; color: var(--muted); margin: 0; }

.cta-band {
  max-width: var(--w-hub); margin: 4rem auto 0;
  background: var(--accent-dark);
  border-radius: var(--radius-2xl); padding: 3rem; text-align: center;
}
.cta-band h2 { color: var(--on-accent); font-size: 1.8rem; margin-bottom: 0.8rem; }
.cta-band p { color: var(--on-dark-soft); max-width: 520px; margin: 0 auto 1.6rem; }


/* ── 8. RESPONSIVO ───────────────────────────────────────────────── */

@media (max-width: 880px) {
  .doc-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .doc-sidebar {
    position: static; border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1rem 1.2rem; background: var(--bg-alt);
  }
  .path-grid, .principles-grid { grid-template-columns: 1fr; }
  body.doc .nav-link { display: none; }
}

@media (max-width: 768px) {
  .problem-grid, .framework-intro, .compare-grid, .journey-steps { grid-template-columns: 1fr; }
  .nav-right { gap: 1rem; }
}

@media (max-width: 520px) {
  .cta-band { padding: 2rem 1.4rem; }
  .doc-table { font-size: 0.84rem; }
  .doc-table th, .doc-table td { padding: 0.5rem 0.6rem; }
}