/* ============================================================
   Compêndio — Arnaldo Gunzi
   Tema: Azul escuro e branco — fundo branco, acentos azul escuro
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Source+Sans+3:wght@300;400;500;600&display=swap');

/* ---------- Variáveis de cor ---------- */
:root {
  --blue-deep:    #0a1628;
  --blue-dark:    #112240;
  --blue-mid:     #1a3a6b;
  --blue-accent:  #2563ae;
  --blue-light:   #3b7dd8;
  --blue-pale:    #e8f0fe;
  --white:        #ffffff;
  --off-white:    #f6f9fd;
  --text-main:    #1a2a3a;
  --text-muted:   #5a7a9a;
  --border:       rgba(37, 99, 174, 0.18);
  --shadow:       0 4px 24px rgba(10, 22, 40, 0.12);
}

/* ---------- Base ---------- */
body,
.quarto-container,
#quarto-content {
  background-color: var(--white) !important;
  color: var(--text-main) !important;
  font-family: 'Source Sans 3', sans-serif !important;
  font-weight: 400;
  line-height: 1.75;
}

/* ---------- Navbar ---------- */
.navbar {
  background: var(--blue-dark) !important;
  border-bottom: 3px solid var(--blue-accent) !important;
  padding: 0.75rem 1.5rem !important;
  box-shadow: 0 2px 16px rgba(10, 22, 40, 0.18) !important;
}

.navbar-brand,
.navbar-brand:hover {
  font-family: 'Playfair Display', serif !important;
  font-size: 1.25rem !important;
  font-weight: 700 !important;
  color: var(--white) !important;
  letter-spacing: 0.04em;
}

.navbar .nav-link {
  color: rgba(255,255,255,0.75) !important;
  font-size: 0.9rem !important;
  font-weight: 500 !important;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 0.2s ease;
  padding: 0.5rem 1rem !important;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--white) !important;
}

/* ---------- Área principal ---------- */
#quarto-content main {
  max-width: 780px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
}

/* ---------- Título da página (h1) ---------- */
h1.title,
.quarto-title h1 {
  font-family: 'Playfair Display', serif !important;
  font-size: clamp(1.9rem, 4vw, 2.7rem) !important;
  font-weight: 700 !important;
  color: var(--blue-deep) !important;
  line-height: 1.2 !important;
  margin-bottom: 0.5rem !important;
  letter-spacing: -0.01em;
}

/* Linha decorativa abaixo do título */
.quarto-title-meta,
h1.title + p:first-of-type {
  border-left: 3px solid var(--blue-accent);
  padding-left: 1rem;
  color: var(--text-muted) !important;
  font-style: italic;
  margin-bottom: 2.5rem;
}

/* ---------- Headings ---------- */
h2 {
  font-family: 'Playfair Display', serif !important;
  font-size: 1.4rem !important;
  font-weight: 600 !important;
  color: var(--blue-dark) !important;
  margin-top: 2.5rem !important;
  margin-bottom: 0.6rem !important;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.01em;
}

h3 {
  font-family: 'Source Sans 3', sans-serif !important;
  font-size: 1.05rem !important;
  font-weight: 600 !important;
  color: var(--blue-accent) !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 1.8rem !important;
}

/* ---------- Parágrafos ---------- */
p {
  color: var(--text-main) !important;
  font-size: 1.02rem;
  margin-bottom: 1rem;
}

/* ---------- Links ---------- */
a {
  color: var(--blue-accent) !important;
  text-decoration: none !important;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

a:hover {
  color: var(--blue-deep) !important;
  border-bottom-color: var(--blue-accent) !important;
}

/* ---------- Listas ---------- */
ul, ol {
  padding-left: 1.4rem;
}

li {
  color: var(--text-main) !important;
  margin-bottom: 0.4rem;
}

li::marker {
  color: var(--blue-accent) !important;
}

/* ---------- TOC (Índice lateral) ---------- */
#TOC,
.sidebar-toc,
nav[role="doc-toc"] {
  background: var(--off-white) !important;
  border-left: 3px solid var(--blue-accent) !important;
  border-radius: 4px;
  padding: 1.25rem 1rem !important;
}

#TOC .nav-link,
nav[role="doc-toc"] a {
  color: var(--text-muted) !important;
  font-size: 0.85rem !important;
  padding: 0.2rem 0.5rem !important;
  transition: color 0.2s;
}

#TOC .nav-link:hover,
#TOC .nav-link.active,
nav[role="doc-toc"] a:hover {
  color: var(--blue-dark) !important;
  background: transparent !important;
}

/* ---------- Sidebar ---------- */
.sidebar,
#quarto-sidebar {
  background: var(--off-white) !important;
  border-right: 1px solid var(--border) !important;
}

/* ---------- Footer ---------- */
footer,
#quarto-footer {
  background: var(--blue-dark) !important;
  border-top: 3px solid var(--blue-accent) !important;
  color: rgba(255,255,255,0.65) !important;
  font-size: 0.82rem;
  padding: 1.5rem 2rem;
  text-align: center;
}

/* ---------- Code blocks ---------- */
pre, code {
  background: var(--off-white) !important;
  color: var(--blue-deep) !important;
  border: 1px solid var(--border) !important;
  border-radius: 4px;
  font-size: 0.88rem;
}

/* ---------- Blockquote ---------- */
blockquote {
  border-left: 4px solid var(--blue-accent) !important;
  background: var(--off-white) !important;
  color: var(--text-muted) !important;
  padding: 0.8rem 1.2rem;
  border-radius: 0 4px 4px 0;
  margin: 1.5rem 0;
}

/* ---------- Imagens ---------- */
img {
  border-radius: 6px;
  box-shadow: var(--shadow);
  max-width: 100%;
  height: auto;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--off-white); }
::-webkit-scrollbar-thumb { background: var(--blue-mid); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue-accent); }

/* ---------- Seleção de texto ---------- */
::selection {
  background: var(--blue-accent);
  color: var(--white);
}

/* ---------- Animação de entrada ---------- */
#quarto-content main {
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}