:root {
  --rt-navy: #12364b;
  --rt-navy-deep: #0b2636;
  --rt-teal: #17657a;
  --rt-orange: #e8783d;
  --rt-orange-light: #f29a54;
  --rt-cream: #f6f8f7;
  --rt-ink: #18313f;
  --rt-muted: #5f7280;
  --md-primary-fg-color: var(--rt-navy);
  --md-primary-fg-color--light: #2a6d83;
  --md-primary-fg-color--dark: var(--rt-navy-deep);
  --md-accent-fg-color: var(--rt-orange);
  --md-default-bg-color: var(--rt-cream);
  --md-default-fg-color: var(--rt-ink);
  --md-default-fg-color--light: var(--rt-muted);
}

[data-md-color-scheme="slate"] {
  --rt-navy: #0d2d3e;
  --rt-navy-deep: #071c27;
  --rt-teal: #52b3bd;
  --rt-orange: #f29a54;
  --rt-orange-light: #ffc078;
  --rt-cream: #101b22;
  --rt-ink: #e7eff1;
  --rt-muted: #afc0c6;
  --md-primary-fg-color: var(--rt-navy);
  --md-primary-fg-color--light: #1d5267;
  --md-primary-fg-color--dark: var(--rt-navy-deep);
  --md-accent-fg-color: var(--rt-orange);
  --md-default-bg-color: var(--rt-cream);
  --md-default-fg-color: var(--rt-ink);
  --md-default-fg-color--light: var(--rt-muted);
  --md-code-bg-color: #0b151c;
  /* O primário continua escuro por causa do cabeçalho. Links e o item ativo herdam essa cor, então no tema escuro ela some. */
  --md-typeset-a-color: var(--rt-orange-light);
}

html { scroll-behavior: smooth; }

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.md-header {
  background: linear-gradient(110deg, var(--rt-navy-deep), var(--rt-navy) 58%, var(--rt-teal));
  box-shadow: 0 5px 18px rgb(7 28 39 / 18%);
}

.md-header__button.md-logo img { height: 2rem; width: 2rem; }
.md-tabs { background: var(--rt-navy); }
.md-tabs__link--active,
.md-tabs__link:hover { color: var(--rt-orange-light); }
.md-main__inner { margin-top: 1.8rem; }

.md-content h1,
.md-content h2,
.md-content h3 {
  color: var(--md-default-fg-color);
  letter-spacing: -0.025em;
}

.md-content h1 { font-weight: 800; }
.md-content h2 { margin-top: 2.5rem; font-weight: 750; }
.md-content h3 { font-weight: 700; }

.md-nav__link--active,
.md-nav__link:focus,
.md-nav__link:hover { color: var(--md-accent-fg-color); }

.md-sidebar--primary { border-right: 1px solid rgb(24 49 63 / 8%); }
[data-md-color-scheme="slate"] .md-sidebar--primary { border-right-color: rgb(231 239 241 / 10%); }

.md-button {
  border: 1px solid rgb(18 54 75 / 24%);
  border-radius: 0.55rem;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.md-button:hover { box-shadow: 0 6px 16px rgb(18 54 75 / 16%); transform: translateY(-1px); }
.md-button--primary { background: var(--rt-orange); border-color: var(--rt-orange); color: #fff; }
.md-button--primary:hover { background: #ce5e2c; border-color: #ce5e2c; color: #fff; }

.md-typeset a:focus-visible,
.md-button:focus-visible,
.md-nav__link:focus-visible,
button:focus-visible {
  outline: 3px solid var(--rt-orange-light);
  outline-offset: 3px;
}

/* Hero da página inicial */
.hero {
  align-items: center;
  background: linear-gradient(135deg, var(--rt-navy-deep), var(--rt-navy) 62%, var(--rt-teal));
  border-radius: 1.15rem;
  color: #f7fbfc;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.95fr);
  margin: 0 0 2.5rem;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 4.5rem);
  position: relative;
}

.hero::after {
  border: 1px solid rgb(242 154 84 / 30%);
  border-radius: 50%;
  content: "";
  height: 20rem;
  position: absolute;
  right: -8rem;
  top: -10rem;
  width: 20rem;
}

.hero__copy,
.hero__visual { position: relative; z-index: 1; }
.hero h1 { color: #fff; font-size: clamp(2.5rem, 6vw, 4.8rem); letter-spacing: -0.055em; line-height: 0.98; margin: 0.45rem 0 1rem; }
.hero__subtitle { color: rgb(247 251 252 / 82%); font-size: clamp(1rem, 1.7vw, 1.25rem); line-height: 1.65; max-width: 38rem; }
.eyebrow { color: var(--rt-orange-light); font-size: 0.76rem; font-weight: 800; letter-spacing: 0.14em; margin: 0; text-transform: uppercase; }

.hero .md-button:not(.md-button--primary) { border-color: rgb(247 251 252 / 48%); color: #fff; }
.hero .md-button:not(.md-button--primary):hover { background: rgb(247 251 252 / 10%); border-color: #fff; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.7rem; }

.maze-art {
  aspect-ratio: 1;
  background: rgb(7 28 39 / 22%);
  border: 1px solid rgb(247 251 252 / 18%);
  border-radius: 1.2rem;
  box-shadow: 0 1.5rem 3rem rgb(7 28 39 / 18%);
  margin: auto;
  max-width: 22rem;
  padding: 1.35rem;
  transform: rotate(2deg);
  width: 100%;
}

.maze-art__grid {
  background: linear-gradient(90deg, transparent 47%, rgb(242 154 84 / 84%) 48% 52%, transparent 53%), linear-gradient(0deg, transparent 47%, rgb(242 154 84 / 84%) 48% 52%, transparent 53%), rgb(247 251 252 / 6%);
  border: 0.35rem solid #dcecee;
  border-radius: 0.7rem;
  height: 100%;
  position: relative;
}

.maze-art__grid::before,
.maze-art__grid::after {
  border: 0.35rem solid #dcecee;
  border-bottom: 0;
  content: "";
  height: 38%;
  left: 22%;
  position: absolute;
  top: 0;
  width: 26%;
}

.maze-art__grid::after { border-bottom: 0.35rem solid #dcecee; border-top: 0; bottom: 0; left: auto; right: 22%; top: auto; }
.maze-art__robot { align-items: center; background: var(--rt-orange); border: 0.3rem solid #fff; border-radius: 0.65rem; box-shadow: 0 0 0 0.35rem rgb(242 154 84 / 28%), 0 0.6rem 1.1rem rgb(7 28 39 / 28%); display: flex; height: 2.3rem; justify-content: center; left: 21%; position: absolute; top: 44%; transform: rotate(-2deg); width: 2.3rem; }
.maze-art__robot::before,
.maze-art__robot::after { background: var(--rt-navy-deep); border-radius: 50%; content: ""; height: 0.32rem; position: absolute; top: 0.55rem; width: 0.32rem; }
.maze-art__robot::before { left: 0.48rem; }
.maze-art__robot::after { right: 0.48rem; }
.maze-art__goal { align-items: center; background: var(--rt-orange-light); border-radius: 50%; bottom: 13%; color: var(--rt-navy-deep); display: flex; font-size: 0.7rem; font-weight: 900; height: 2rem; justify-content: center; position: absolute; right: 14%; width: 2rem; }

.stat-grid,
.feature-grid,
.quick-links { display: grid; gap: 1rem; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 1.2rem 0 2.4rem; }
.stat,
.feature-card,
.quick-link { background: var(--md-default-bg-color); border: 1px solid rgb(24 49 63 / 11%); border-radius: 0.85rem; padding: 1.25rem; }
[data-md-color-scheme="slate"] .stat,
[data-md-color-scheme="slate"] .feature-card,
[data-md-color-scheme="slate"] .quick-link { border-color: rgb(231 239 241 / 13%); }
.stat__value { color: var(--rt-orange); display: block; font-size: 1.8rem; font-weight: 850; letter-spacing: -0.04em; line-height: 1.1; }
.stat__label { color: var(--md-default-fg-color--light); display: block; font-size: 0.82rem; margin-top: 0.35rem; }
.feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.feature-card,
.quick-link { transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease; }
.feature-card:hover,
.quick-link:hover { border-color: var(--rt-orange-light); box-shadow: 0 0.8rem 2rem rgb(18 54 75 / 10%); transform: translateY(-2px); }
.feature-card__icon { color: var(--rt-orange); font-size: 1.55rem; }
.feature-card h3,
.quick-link h3 { margin: 0.45rem 0; }
.feature-card p,
.quick-link p { color: var(--md-default-fg-color--light); font-size: 0.9rem; line-height: 1.6; margin-bottom: 0; }
.feature-card a,
.quick-link a { font-weight: 750; }

.process { display: grid; gap: 0; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 1.3rem 0 2.4rem; }
.process__step { border-top: 2px solid var(--rt-orange-light); padding: 1.1rem 1rem 0 0; position: relative; }
.process__step::before { background: var(--rt-orange); border: 4px solid var(--md-default-bg-color); border-radius: 50%; content: ""; height: 0.75rem; left: 0; position: absolute; top: -0.45rem; width: 0.75rem; }
.process__number { color: var(--rt-orange); font-size: 0.76rem; font-weight: 850; letter-spacing: 0.1em; }
.process h3 { font-size: 1rem; margin: 0.45rem 0; }
.process p { color: var(--md-default-fg-color--light); font-size: 0.87rem; line-height: 1.55; margin: 0; padding-right: 0.8rem; }
.quick-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.md-typeset .admonition,
.md-typeset details { border-radius: 0.7rem; box-shadow: 0 0.5rem 1.4rem rgb(18 54 75 / 7%); }
.md-typeset table:not([class]) { border: 1px solid rgb(24 49 63 / 11%); border-radius: 0.55rem; display: block; overflow-x: auto; width: 100%; }
.md-typeset table:not([class]) th { background: rgb(18 54 75 / 7%); }
[data-md-color-scheme="slate"] .md-typeset table:not([class]) th { background: rgb(231 239 241 / 8%); }
.md-typeset pre > code { border-radius: 0.55rem; }
.md-footer { margin-top: 3rem; }

@media screen and (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero__visual { max-width: 19rem; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 1.4rem; }
}

@media screen and (max-width: 600px) {
  .md-main__inner { margin-top: 1rem; }
  .hero { border-radius: 0.85rem; padding: 1.5rem; }
  .hero h1 { font-size: 3rem; }
  .hero__actions .md-button { flex: 1 1 100%; text-align: center; }
  .feature-grid,
  .quick-links,
  .process,
  .stat-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}

/* Barras laterais recolhíveis: navegação (esquerda) e índice (direita) */
.rt-sidebar-toggles {
  align-items: center;
  display: flex;
  margin-left: 0.35rem;
}

.rt-sidebar-toggles .md-header__button {
  border-radius: 0.4rem;
}

.rt-sidebar-toggles .md-header__button[aria-expanded="false"] {
  background: rgb(247 251 252 / 16%);
  color: var(--rt-orange-light);
}

@media screen and (max-width: 59.984375em) {
  .rt-sidebar-toggles { display: none; }
}

@media screen and (max-width: 76.234375em) {
  .rt-sidebar-toggles [data-rt-toggle="nav"] { display: none; }
}

@media print {
  .rt-sidebar-toggles { display: none; }
}

/* Testes de energia (7.2): gráficos e avisos montados a partir dos CSV */
.energia-grafico { position: relative; height: 18rem; margin: 1rem 0; }
.energia-aviso { color: var(--md-default-fg-color--light); font-style: italic; }
.energia-fotos { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 0.5rem; }
.energia-fotos p { display: contents; }
.energia-fotos img { width: 100%; }
.energia-figura { display: block; margin: 0 auto; }
.energia-fotos { max-width: 52rem; margin: 0 auto; }
.energia-fotos--par { max-width: 40rem; grid-template-columns: repeat(2, 1fr); }