/* ============================================================
   Neuroredes — Documentação técnica
   Paleta: creme quente + acento oxblood. Foco em tipografia.
   ============================================================ */

:root {
  /* Cores */
  --bg:           #f5f1e8;
  --surface:      #fbf8f1;
  --surface-2:    #ece5d3;
  --ink:          #1c1813;
  --ink-soft:     #2e2820;
  --muted:        #6b6356;
  --muted-2:      #98907f;
  --border:       #d6cdb9;
  --border-soft:  #e6dfcd;
  --rule:         #c5bba3;

  --accent:       #7a2e1f;
  --accent-soft:  #b85a45;
  --accent-tint:  #f0d9d2;

  --note:         #2c4a5b;
  --note-bg:      #e4ecf1;
  --warn:         #8a5b14;
  --warn-bg:      #f3e7cb;

  --code-bg:      #211c16;
  --code-fg:      #e9e1cd;
  --code-line:    #3a322a;
  --code-tab-bg:  #2c241c;

  /* Tipografia */
  --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Métrica */
  --sidebar-w:    280px;
  --content-w:    760px;
  --rhythm:       8px;
}

/* Reset & base ---------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 32px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease, color 120ms ease;
}

a:hover {
  border-bottom-color: var(--accent);
}

p { margin: 0 0 1em; }

strong { color: var(--ink); font-weight: 600; }

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 48px 0;
}

/* Layout ---------------------------------------------------- */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 40px 28px 24px;
  border-right: 1px solid var(--border);
  background: var(--surface);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.content-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.content {
  width: 100%;
  max-width: var(--content-w);
  padding: 64px 56px 96px;
  margin: 0 auto;
  flex: 1;
}

/* Brand ----------------------------------------------------- */

.brand {
  display: block;
  border: 0 !important;
  color: var(--ink);
  margin-bottom: 40px;
  line-height: 1.15;
}

.brand:hover { color: var(--ink); }

.brand-name {
  display: block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
}

.brand-sub {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-style: italic;
}

/* Sidebar nav ---------------------------------------------- */

.nav-group {
  margin-bottom: 28px;
}

.nav-label {
  display: block;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--rule);
}

.sidebar nav a {
  display: block;
  padding: 5px 10px;
  margin: 1px 0;
  font-size: 14px;
  color: var(--ink-soft);
  border-bottom: 0;
  border-left: 2px solid transparent;
  transition: background 100ms ease, border-color 100ms ease, color 100ms ease;
}

.sidebar nav a:hover {
  color: var(--ink);
  background: var(--surface-2);
}

.sidebar nav a[aria-current="page"] {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
  background: var(--accent-tint);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted-2);
  text-transform: uppercase;
}

/* Mobile header --------------------------------------------- */

.mobile-bar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  align-items: center;
  justify-content: space-between;
}

.mobile-bar .brand-name { font-size: 12px; }

.menu-toggle {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--border);
  padding: 6px 12px;
  cursor: pointer;
}

.menu-toggle:hover { background: var(--surface-2); }

/* Page header ----------------------------------------------- */

.page-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.page-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 42px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0 0 56px;
  max-width: 640px;
}

/* Section -------------------------------------------------- */

section.doc-section {
  margin-top: 56px;
  padding-top: 8px;
}

section.doc-section + section.doc-section {
  margin-top: 64px;
}

.section-eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 8px;
}

.doc-section h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 0 0 18px;
  line-height: 1.2;
}

.doc-section h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 32px 0 10px;
}

ul, ol {
  padding-left: 22px;
  margin: 0 0 1em;
}

li { margin-bottom: 6px; }
li::marker { color: var(--muted-2); }

/* Tables ---------------------------------------------------- */

table.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 24px;
  font-size: 14.5px;
}

.doc-table thead th {
  text-align: left;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 10px 14px;
  border-bottom: 2px solid var(--ink);
  background: transparent;
}

.doc-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
  color: var(--ink-soft);
}

.doc-table tr:last-child td { border-bottom: 0; }

.doc-table td code {
  font-size: 13px;
}

/* Definition list ------------------------------------------ */

dl.field-list {
  margin: 16px 0 24px;
  border-top: 1px solid var(--border-soft);
}

dl.field-list > div {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-soft);
}

dl.field-list dt {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  font-weight: 500;
}

dl.field-list dd {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-soft);
}

/* Note / Warning blocks ------------------------------------ */

.callout {
  position: relative;
  margin: 24px 0;
  padding: 16px 20px 16px 22px;
  border-left: 3px solid var(--note);
  background: var(--note-bg);
  font-size: 14.5px;
  line-height: 1.6;
}

.callout p:last-child { margin-bottom: 0; }

.callout-label {
  display: block;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--note);
  margin-bottom: 6px;
}

.callout.warn {
  border-left-color: var(--warn);
  background: var(--warn-bg);
}

.callout.warn .callout-label { color: var(--warn); }

.callout.accent {
  border-left-color: var(--accent);
  background: var(--accent-tint);
}

.callout.accent .callout-label { color: var(--accent); }

/* Code blocks ---------------------------------------------- */

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--surface-2);
  padding: 2px 6px;
  color: var(--ink);
  border-radius: 2px;
}

.code-block {
  margin: 20px 0 28px;
  border: 1px solid var(--code-bg);
  border-radius: 4px;
  overflow: hidden;
  background: var(--code-bg);
}

.code-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--code-tab-bg);
  border-bottom: 1px solid var(--code-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.code-tab-name { color: var(--code-fg); opacity: 0.85; }
.code-tab-lang { color: var(--accent-soft); font-weight: 600; }

.code-block pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--code-fg);
  background: var(--code-bg);
}

.code-block pre code {
  background: transparent;
  padding: 0;
  font-size: inherit;
  color: inherit;
  border-radius: 0;
}

/* Prism overrides — tema escuro quente */
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #7a7264; font-style: italic; }
.token.punctuation { color: #b9b09c; }
.token.string, .token.attr-value { color: #c8a165; }
.token.keyword, .token.boolean, .token.number { color: #d98c6c; }
.token.function, .token.class-name { color: #e9c69b; }
.token.operator { color: #c4baa3; }
.token.tag, .token.selector { color: #d98c6c; }
.token.attr-name { color: #b8a679; }
.token.property { color: #e9c69b; }

/* Module grid (index) -------------------------------------- */

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  margin: 16px 0 24px;
}

.module-card {
  display: block;
  padding: 18px 18px 20px;
  background: var(--surface);
  color: var(--ink-soft);
  border-bottom: 0;
  transition: background 120ms ease;
  position: relative;
}

.module-card:hover {
  background: var(--surface-2);
  color: var(--ink);
}

.module-card .module-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted-2);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.module-card .module-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
  margin-bottom: 6px;
}

.module-card .module-desc {
  display: block;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

/* Architecture diagram ------------------------------------ */

.diagram {
  margin: 24px 0 32px;
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  overflow-x: auto;
}

.diagram svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

.diagram-caption {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-2);
  text-align: center;
}

/* Placeholder ("em construção") ---------------------------- */

.wip {
  margin: 64px 0;
  padding: 48px 36px;
  border: 1px dashed var(--rule);
  background: var(--surface);
  text-align: center;
}

.wip-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.wip-title {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.wip-text {
  font-size: 14.5px;
  color: var(--muted);
  margin: 0 auto;
  max-width: 460px;
}

/* Responsive ----------------------------------------------- */

@media (max-width: 960px) {
  .app {
    grid-template-columns: 1fr;
  }

  .mobile-bar { display: flex; }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 86%;
    max-width: 320px;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 220ms ease;
    box-shadow: 0 0 0 9999px rgba(0,0,0,0);
  }

  .app.menu-open .sidebar {
    transform: translateX(0);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
  }

  .content {
    padding: 36px 24px 72px;
  }

  .page-title { font-size: 32px; }
}