/* ==========================================================================
   Guia Power BI + Git + GitHub + VS Code
   Folha de estilo principal
   ========================================================================== */

/* --- 1. Tokens de design ------------------------------------------------- */
:root {
  --bg: #ffffff;
  --bg-alt: #f6f8fa;
  --bg-sidebar: #fbfcfd;
  --surface: #ffffff;
  --surface-2: #f6f8fa;
  --border: #d8dee4;
  --border-soft: #e9edf1;
  --text: #1f2328;
  --text-soft: #57606a;
  --text-mute: #848d97;
  --brand: #1f6feb;
  --brand-strong: #0a4fb8;
  --brand-soft: #ddebff;
  --accent: #8250df;
  --green: #1a7f37;
  --green-soft: #dafbe1;
  --amber: #9a6700;
  --amber-soft: #fff8c5;
  --red: #cf222e;
  --red-soft: #ffebe9;
  --cyan: #0e7490;
  --code-bg: #0d1117;
  --code-text: #e6edf3;
  --shadow-sm: 0 1px 2px rgba(31, 35, 40, .08);
  --shadow: 0 4px 14px rgba(31, 35, 40, .10);
  --shadow-lg: 0 16px 40px rgba(31, 35, 40, .14);
  --radius: 10px;
  --radius-lg: 16px;
  --sidebar-w: 292px;
  --topbar-h: 62px;
  --content-max: 1040px;
  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, "Inter", Roboto, Helvetica, Arial, sans-serif;
  --mono: "Cascadia Code", "JetBrains Mono", Consolas, "SF Mono", Menlo, monospace;
}

html[data-theme="dark"] {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --bg-sidebar: #0b0f16;
  --surface: #161b22;
  --surface-2: #1c2129;
  --border: #30363d;
  --border-soft: #21262d;
  --text: #e6edf3;
  --text-soft: #adbac7;
  --text-mute: #7d8590;
  --brand: #58a6ff;
  --brand-strong: #79c0ff;
  --brand-soft: #132b4d;
  --accent: #bc8cff;
  --green: #3fb950;
  --green-soft: #12261b;
  --amber: #d29922;
  --amber-soft: #2b2513;
  --red: #f85149;
  --red-soft: #2d1416;
  --cyan: #39c5cf;
  --code-bg: #010409;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow: 0 4px 14px rgba(0, 0, 0, .45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, .55);
}

/* --- 2. Reset e base ----------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 18px); }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  transition: background-color .25s ease, color .25s ease;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code, kbd, pre { font-family: var(--mono); }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-mute); }

/* --- 3. Barra superior --------------------------------------------------- */
.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--topbar-h);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 11px; min-width: 0; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand__mark {
  width: 34px; height: 34px; flex: none;
  border-radius: 9px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #1f6feb, #8250df);
  color: #fff; font-size: 15px;
}
.brand__title { font-weight: 650; font-size: 15px; line-height: 1.15; white-space: nowrap; }
.brand__sub { font-size: 11.5px; color: var(--text-mute); line-height: 1.2; }

.topbar__spacer { flex: 1; }

.icon-btn {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-soft);
  border-radius: 9px;
  cursor: pointer;
  font-size: 15px;
  transition: all .18s ease;
}
.icon-btn:hover { color: var(--brand); border-color: var(--brand); transform: translateY(-1px); }

.menu-btn { display: none; }

.topbar__links { display: flex; gap: 6px; }
.topbar__links a {
  padding: 7px 11px; border-radius: 8px; font-size: 13.5px;
  color: var(--text-soft); display: flex; align-items: center; gap: 7px;
}
.topbar__links a:hover { background: var(--surface-2); color: var(--brand); text-decoration: none; }

/* --- 4. Busca ------------------------------------------------------------ */
.search { position: relative; width: 340px; max-width: 38vw; }
.search__icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-mute); font-size: 13px; pointer-events: none;
}
.search__input {
  width: 100%; height: 38px;
  padding: 0 64px 0 34px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--font); font-size: 14px;
  transition: border-color .18s, box-shadow .18s, background .18s;
}
.search__input::placeholder { color: var(--text-mute); }
.search__input:focus {
  outline: none; background: var(--surface);
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.search__kbd {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  font-size: 10.5px; font-family: var(--font); color: var(--text-mute);
  border: 1px solid var(--border); border-bottom-width: 2px;
  border-radius: 5px; padding: 1px 6px; background: var(--bg);
}
.search__input:focus ~ .search__kbd { display: none; }

.search__results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0;
  max-height: min(60vh, 460px); overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 6px;
  display: none;
}
.search__results.is-open { display: block; }
.search__hit {
  display: block; padding: 9px 12px; border-radius: 8px; color: var(--text);
}
.search__hit:hover, .search__hit.is-active { background: var(--brand-soft); text-decoration: none; }
.search__hit-title { font-size: 13.5px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.search__hit-title i { color: var(--brand); font-size: 12px; }
.search__hit-ctx { font-size: 12px; color: var(--text-soft); margin-top: 2px; }
.search__hit mark { background: var(--amber-soft); color: var(--text); padding: 0 2px; border-radius: 3px; }
.search__empty { padding: 16px; font-size: 13px; color: var(--text-mute); text-align: center; }

/* --- 5. Layout ----------------------------------------------------------- */
.layout { display: flex; padding-top: var(--topbar-h); }

.sidebar {
  position: fixed;
  top: var(--topbar-h); bottom: 0; left: 0;
  width: var(--sidebar-w);
  overflow-y: auto;
  padding: 22px 12px 60px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  z-index: 50;
  transition: transform .26s ease;
}

.nav__group { font-size: 10.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--text-mute); padding: 16px 12px 7px; }
.nav__list { list-style: none; margin: 0; padding: 0; }
.nav__link {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 12px; margin-bottom: 1px;
  border-radius: 8px; font-size: 13.5px;
  color: var(--text-soft);
  border-left: 2.5px solid transparent;
  transition: background .15s, color .15s;
}
.nav__link:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav__link.is-active {
  background: var(--brand-soft); color: var(--brand-strong);
  font-weight: 600; border-left-color: var(--brand);
}
.nav__num {
  flex: none; width: 21px; height: 21px; border-radius: 6px;
  display: grid; place-items: center;
  font-size: 10.5px; font-weight: 700;
  background: var(--surface-2); color: var(--text-mute);
}
.nav__link.is-active .nav__num { background: var(--brand); color: #fff; }
.nav__link i { font-size: 12px; width: 14px; text-align: center; }

/* --- 6. Conteúdo --------------------------------------------------------- */
.content {
  flex: 1;
  min-width: 0;
  margin-left: var(--sidebar-w);
  padding: 34px 40px 100px;
}
.content__inner { max-width: var(--content-max); margin: 0 auto; }

.section { scroll-margin-top: calc(var(--topbar-h) + 20px); padding-bottom: 26px; }
.section + .section { border-top: 1px solid var(--border-soft); padding-top: 48px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 5px 11px; border-radius: 99px;
  margin-bottom: 14px;
}

h1 { font-size: clamp(28px, 4vw, 40px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 14px; }
h2 { font-size: clamp(23px, 3vw, 29px); line-height: 1.25; letter-spacing: -.015em; margin: 0 0 12px; }
h3 { font-size: 18.5px; margin: 32px 0 10px; }
h4 { font-size: 15.5px; margin: 24px 0 8px; }
p { margin: 0 0 15px; color: var(--text-soft); }
.content strong { color: var(--text); font-weight: 650; }
.lead { font-size: 17.5px; color: var(--text-soft); }

.content ul, .content ol { color: var(--text-soft); padding-left: 22px; margin: 0 0 16px; }
.content li { margin-bottom: 7px; }

.content p code, .content li code, .content td code {
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  padding: 1.5px 6px; border-radius: 5px;
  font-size: 13px; color: var(--accent);
  white-space: nowrap;
}

.anchor {
  margin-left: 10px; font-size: 15px; color: var(--text-mute);
  opacity: 0; transition: opacity .15s;
}
h2:hover .anchor, h3:hover .anchor { opacity: 1; }

/* --- 7. Hero ------------------------------------------------------------- */
.hero {
  background: linear-gradient(140deg, var(--brand-soft), transparent 65%), var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px;
  margin-bottom: 34px;
}
.hero__meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 22px; }
.hero__fig { margin-top: 24px; }

.chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; font-weight: 600;
  padding: 5px 12px; border-radius: 99px;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-soft);
}
.chip i { font-size: 12px; }
.chip--git i { color: #f05032; }
.chip--gh i { color: var(--text); }
.chip--vs i { color: #007acc; }
.chip--pbi i { color: #e8b000; }

.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 18px; border-radius: 9px;
  font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn--primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--brand-strong); box-shadow: var(--shadow); }
html[data-theme="dark"] .btn--primary { color: #04121f; }
.btn--ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); }

/* --- 8. Figuras ---------------------------------------------------------- */
.fig { margin: 24px 0; }
.fig__frame {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.fig__frame img { width: 100%; height: auto; border-radius: 8px; }
html[data-theme="dark"] .fig__frame img { filter: brightness(.94) saturate(.96); }
.fig figcaption {
  margin-top: 10px; font-size: 12.5px; color: var(--text-mute);
  display: flex; align-items: flex-start; gap: 8px; line-height: 1.5;
}
.fig figcaption i { color: var(--brand); margin-top: 3px; }

/* --- 9. Cards ------------------------------------------------------------ */
.grid { display: grid; gap: 16px; margin: 22px 0; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(212px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(178px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 19px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--brand); }
.card__icon {
  width: 42px; height: 42px; border-radius: 11px;
  display: grid; place-items: center;
  font-size: 18px; margin-bottom: 13px;
  background: var(--brand-soft); color: var(--brand);
}
.card__icon--git { background: #fdece8; color: #f05032; }
.card__icon--gh { background: var(--surface-2); color: var(--text); }
.card__icon--vs { background: #e3f2fd; color: #007acc; }
.card__icon--pbi { background: #fff8db; color: #c99400; }
.card__icon--green { background: var(--green-soft); color: var(--green); }
.card__icon--red { background: var(--red-soft); color: var(--red); }
.card__icon--amber { background: var(--amber-soft); color: var(--amber); }
.card__icon--accent { background: #f3e8ff; color: var(--accent); }
html[data-theme="dark"] .card__icon--git { background: #2b1512; }
html[data-theme="dark"] .card__icon--vs { background: #0b2a3f; }
html[data-theme="dark"] .card__icon--pbi { background: #2b2410; }
html[data-theme="dark"] .card__icon--accent { background: #24163a; }
.card h3, .card h4 { margin: 0 0 7px; font-size: 16px; }
.card p { margin: 0; font-size: 13.8px; }
.card p + p { margin-top: 9px; }
.card__link { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 600; margin-top: 12px; }

/* --- 10. Blocos de código ----------------------------------------------- */
.code {
  position: relative;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 18px 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.code__head {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 13px;
  background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid rgba(255, 255, 255, .09);
}
.code__dots { display: flex; gap: 5px; }
.code__dots span { width: 9px; height: 9px; border-radius: 50%; }
.code__dots span:nth-child(1) { background: #ff5f57; }
.code__dots span:nth-child(2) { background: #febc2e; }
.code__dots span:nth-child(3) { background: #28c840; }
.code__label { font-size: 11.5px; color: #8b949e; font-family: var(--font); letter-spacing: .02em; }
.code__body { margin: 0; padding: 15px 17px; overflow-x: auto; font-size: 13.5px; line-height: 1.75; color: var(--code-text); }
.code__body code { display: block; white-space: pre; }
.code__copy {
  position: absolute; top: 7px; right: 9px;
  display: flex; align-items: center; gap: 6px;
  padding: 5px 10px;
  font-family: var(--font); font-size: 11.5px; font-weight: 600;
  color: #adbac7; background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 7px; cursor: pointer;
  transition: all .16s ease;
}
.code__copy:hover { background: rgba(255, 255, 255, .17); color: #fff; }
.code__copy.is-done { background: var(--green); border-color: var(--green); color: #fff; }

/* tokens do "realce de sintaxe" manual */
.t-prompt { color: #3fb950; user-select: none; }
.t-cmd    { color: #e6edf3; font-weight: 600; }
.t-flag   { color: #ffa657; }
.t-str    { color: #a5d6ff; }
.t-out    { color: #8b949e; }
.t-com    { color: #6e7681; font-style: italic; }
.t-add    { color: #3fb950; }
.t-del    { color: #f85149; }
.t-key    { color: #ff7b72; }
.t-branch { color: #d2a8ff; }

/* --- 11. Callouts -------------------------------------------------------- */
.callout {
  display: flex; gap: 13px;
  padding: 15px 17px;
  border-radius: var(--radius);
  border: 1px solid;
  margin: 20px 0;
  font-size: 14px;
}
.callout i { font-size: 16px; margin-top: 2px; flex: none; }
.callout p { margin: 0; color: inherit; }
.callout p + p { margin-top: 7px; }
.callout__title { font-weight: 700; display: block; margin-bottom: 3px; }
.callout--info  { background: var(--brand-soft); border-color: color-mix(in srgb, var(--brand) 40%, transparent); color: var(--text); }
.callout--info i { color: var(--brand); }
.callout--tip   { background: var(--green-soft); border-color: color-mix(in srgb, var(--green) 40%, transparent); color: var(--text); }
.callout--tip i { color: var(--green); }
.callout--warn  { background: var(--amber-soft); border-color: color-mix(in srgb, var(--amber) 45%, transparent); color: var(--text); }
.callout--warn i { color: var(--amber); }
.callout--danger{ background: var(--red-soft); border-color: color-mix(in srgb, var(--red) 40%, transparent); color: var(--text); }
.callout--danger i { color: var(--red); }

/* --- 12. Passos numerados ----------------------------------------------- */
.steps { list-style: none; margin: 24px 0; padding: 0; counter-reset: step; }
.steps > li {
  position: relative;
  padding: 0 0 26px 52px;
  counter-increment: step;
}
.steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 13.5px; font-weight: 700;
  background: var(--brand); color: #fff;
  box-shadow: 0 0 0 4px var(--brand-soft);
}
html[data-theme="dark"] .steps > li::before { color: #04121f; }
.steps > li::after {
  content: ""; position: absolute; left: 15.5px; top: 36px; bottom: 4px;
  width: 2px; background: var(--border);
}
.steps > li:last-child { padding-bottom: 4px; }
.steps > li:last-child::after { display: none; }
.steps h4 { margin: 4px 0 7px; font-size: 16.5px; }

/* --- 13. Timeline horizontal -------------------------------------------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(140px, 1fr));
  gap: 0;
  overflow-x: auto;
  padding: 26px 4px 8px;
  margin: 24px 0;
}
.tl {
  position: relative;
  padding: 0 12px;
  text-align: center;
}
.tl::before {
  content: ""; position: absolute; top: 15px; left: 0; right: 0; height: 3px;
  background: var(--border);
}
.tl:first-child::before { left: 50%; }
.tl:last-child::before { right: 50%; }
.tl__dot {
  position: relative; z-index: 1;
  width: 32px; height: 32px; margin: 0 auto 12px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 12.5px;
  background: var(--surface); color: var(--brand);
  border: 3px solid var(--brand);
}
.tl:nth-child(even) .tl__dot { color: var(--accent); border-color: var(--accent); }
.tl__title { font-size: 13.5px; font-weight: 650; margin-bottom: 4px; }
.tl__cmd {
  display: inline-block;
  font-family: var(--mono); font-size: 11px;
  background: var(--code-bg); color: #a5d6ff;
  padding: 3px 8px; border-radius: 6px;
  margin-bottom: 6px; white-space: nowrap; max-width: 100%; overflow: hidden; text-overflow: ellipsis;
}
.tl__desc { font-size: 11.5px; color: var(--text-mute); line-height: 1.45; }

/* --- 14. Fluxograma interativo ------------------------------------------ */
.flow {
  display: flex; flex-wrap: wrap; align-items: stretch; gap: 10px;
  padding: 22px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin: 24px 0;
}
.flow__node {
  flex: 1 1 140px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 12px;
  text-align: center;
  cursor: pointer;
  transition: all .2s ease;
}
.flow__node:hover, .flow__node.is-on {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft);
  transform: translateY(-3px);
}
.flow__node i { font-size: 19px; color: var(--brand); display: block; margin-bottom: 8px; }
.flow__node b { font-size: 13.5px; display: block; }
.flow__node small { font-size: 11.5px; color: var(--text-mute); display: block; margin-top: 3px; }
.flow__arrow { display: grid; place-items: center; color: var(--text-mute); font-size: 15px; flex: none; padding: 0 2px; }
.flow__detail {
  flex: 1 1 100%;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 15px 17px;
  font-size: 13.5px;
  color: var(--text-soft);
  min-height: 62px;
}
.flow__detail b { color: var(--text); }
.flow__detail code { background: var(--surface-2); padding: 1.5px 6px; border-radius: 5px; color: var(--accent); font-size: 12.5px; }

/* --- 15. Árvore de arquivos --------------------------------------------- */
.tree {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 17px 19px;
  margin: 20px 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.85;
  color: #c9d1d9;
  overflow-x: auto;
  white-space: pre;
}
.tree .d { color: #79c0ff; font-weight: 600; }
.tree .f { color: #c9d1d9; }
.tree .g { color: #f0b429; }
.tree .c { color: #6e7681; }
.tree .p { color: #d2a8ff; font-weight: 600; }
.tree .s { color: #6e7681; }

/* --- 16. Tabela ---------------------------------------------------------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 22px 0;
  background: var(--surface);
}
table { width: 100%; border-collapse: collapse; font-size: 13.8px; }
thead th {
  text-align: left; padding: 12px 15px;
  background: var(--surface-2);
  font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: var(--text-soft);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td { padding: 12px 15px; border-bottom: 1px solid var(--border-soft); color: var(--text-soft); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--surface-2); }
td .cmd {
  display: inline-block;
  font-family: var(--mono); font-size: 12.5px; font-weight: 600;
  background: var(--code-bg); color: #a5d6ff;
  padding: 3px 9px; border-radius: 6px; white-space: nowrap;
}

/* --- 17. Links úteis ----------------------------------------------------- */
.links { display: grid; gap: 11px; grid-template-columns: repeat(auto-fit, minmax(275px, 1fr)); margin: 22px 0; }
.link-card {
  display: flex; align-items: center; gap: 13px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  transition: all .18s ease;
}
.link-card:hover {
  text-decoration: none; border-color: var(--brand);
  box-shadow: var(--shadow); transform: translateY(-2px);
}
.link-card__icon {
  width: 38px; height: 38px; flex: none; border-radius: 10px;
  display: grid; place-items: center; font-size: 16px;
  background: var(--surface-2); color: var(--brand);
}
.link-card__body { min-width: 0; flex: 1; }
.link-card__title { font-size: 14px; font-weight: 650; }
.link-card__url { font-size: 12px; color: var(--text-mute); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link-card__go { color: var(--text-mute); font-size: 12px; }
.link-card:hover .link-card__go { color: var(--brand); }

/* --- 18. Comparação lado a lado ----------------------------------------- */
.vs { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin: 22px 0; }
.vs__col { border: 1px solid; border-radius: var(--radius); padding: 18px; }
.vs__col--bad { background: var(--red-soft); border-color: color-mix(in srgb, var(--red) 35%, transparent); }
.vs__col--good { background: var(--green-soft); border-color: color-mix(in srgb, var(--green) 35%, transparent); }
.vs__col h4 { margin: 0 0 12px; display: flex; align-items: center; gap: 9px; font-size: 15.5px; }
.vs__col--bad h4 i { color: var(--red); }
.vs__col--good h4 i { color: var(--green); }
.vs__col ul { margin: 0; padding-left: 20px; font-size: 13.8px; }
.vs__col li { margin-bottom: 6px; }

/* --- 19. Rodapé ---------------------------------------------------------- */
.footer {
  margin-top: 54px; padding-top: 26px;
  border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-mute);
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center;
}
.footer__links { display: flex; flex-wrap: wrap; gap: 16px; }

.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 55;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--brand); color: #fff;
  border: none; cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0; pointer-events: none;
  transition: opacity .22s, transform .22s;
}
.to-top.is-on { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-3px); }

/* --- 20. Animações ------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity .55s ease, transform .55s ease; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

.backdrop {
  position: fixed; inset: var(--topbar-h) 0 0 0; z-index: 45;
  background: rgba(0, 0, 0, .45);
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
.backdrop.is-on { opacity: 1; pointer-events: auto; }

/* --- 21. Responsivo ------------------------------------------------------ */
@media (max-width: 1100px) {
  :root { --sidebar-w: 260px; }
  .content { padding: 30px 26px 90px; }
  .topbar__links a span { display: none; }
}

@media (max-width: 900px) {
  .menu-btn { display: grid; }
  .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-lg); width: 290px; }
  .sidebar.is-open { transform: none; }
  .content { margin-left: 0; padding: 26px 18px 80px; }
  .search { width: auto; flex: 1; max-width: none; }
  .search__kbd { display: none; }
  .brand__sub { display: none; }
  .brand__title { font-size: 14px; }
}

@media (max-width: 620px) {
  body { font-size: 15.5px; }
  .topbar { gap: 10px; padding: 0 12px; }
  .brand__title { display: none; }
  .topbar__links { display: none; }
  .hero { padding: 22px 18px; }
  .content { padding: 22px 14px 70px; }
  .section + .section { padding-top: 34px; }
  .timeline { grid-template-columns: repeat(6, 150px); }
  .code__body { font-size: 12.5px; }
  .flow__arrow { transform: rotate(90deg); width: 100%; }
  .flow__node { flex: 1 1 100%; }
}

/* --- 22. Impressão ------------------------------------------------------- */
@media print {
  .topbar, .sidebar, .to-top, .code__copy, .backdrop { display: none !important; }
  .content { margin: 0; padding: 0; }
  .layout { padding-top: 0; }
  .card, .code, .fig__frame { break-inside: avoid; }
}