/* Estudo /estudos/custo-do-token/ */

.ct-page {
  --ct-queda: #2f7d6b;
  --ct-alta: #c44b3a;
  --ct-neutro: rgba(255, 255, 255, 0.42);
  --ct-faixa: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .ct-page {
  --ct-queda: #216354;
  --ct-alta: #a83d2e;
  --ct-neutro: rgba(0, 0, 0, 0.36);
  --ct-faixa: rgba(0, 0, 0, 0.06);
}

.ct-page .estudo-body {
  max-width: 100%;
}

/* --- Resposta curta no topo ---------------------------------------- */

.ct-tldr {
  margin: 2rem 0 2.5rem;
  border: 1px solid var(--border-color);
}

.ct-tldr__head {
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.ct-tldr__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ct-tldr__list li {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.9rem 1.1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.ct-tldr__list li:first-child {
  border-top: 0;
}

.ct-tldr__verdito {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.2;
}

.ct-tldr__verdito--sim {
  color: var(--ct-queda);
}

.ct-tldr__verdito--nao {
  color: var(--ct-alta);
}

.ct-tldr__verdito--talvez {
  color: var(--text-primary);
}

/* --- Gráficos ------------------------------------------------------ */

.ct-figure {
  margin: 2.5rem 0;
  padding: 1.25rem 1.25rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-primary);
}

.ct-figure__title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  line-height: 1.3;
}

.ct-figure__lead {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.ct-chart {
  position: relative;
  width: 100%;
  overflow-x: auto;
}

.ct-svg {
  display: block;
  width: 100%;
  height: auto;
  min-width: 460px;
  font-family: Inter, system-ui, sans-serif;
}

.ct-figure__source {
  margin: 0.75rem 0 0;
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--text-tertiary);
}

/* --- Primitivas dos gráficos --------------------------------------- */

.ct-grid line {
  stroke: var(--border-color);
  stroke-width: 1;
}

.ct-grid line.ct-grid__zero {
  stroke: var(--text-tertiary);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.ct-axis text {
  fill: var(--text-tertiary);
  font-size: 11px;
}

.ct-label {
  fill: var(--text-secondary);
  font-size: 11px;
}

.ct-label--forte {
  fill: var(--text-primary);
  font-size: 11.5px;
  font-weight: 600;
}

.ct-label--fraco {
  fill: var(--text-tertiary);
  font-size: 10px;
}

.ct-label--dentro {
  fill: var(--bg-primary);
  font-size: 10.5px;
  font-weight: 600;
}

.ct-label--alta {
  fill: var(--ct-alta);
  font-size: 11.5px;
  font-weight: 600;
}

.ct-hlabel {
  fill: var(--text-secondary);
  font-size: 11.5px;
}

.ct-hlabel--token {
  fill: var(--ct-queda);
  font-weight: 600;
}

.ct-hlabel--hardware,
.ct-hlabel--nuvem {
  fill: var(--text-tertiary);
}

.ct-line {
  fill: none;
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.ct-line--queda {
  stroke: var(--ct-queda);
}

.ct-line--alta {
  stroke: var(--ct-alta);
}

.ct-line--secundaria {
  stroke: var(--text-tertiary);
  stroke-width: 1.25;
  stroke-dasharray: 4 3;
}

.ct-line--hyperscaler {
  stroke: var(--text-primary);
  opacity: 0.75;
}

.ct-line--marketplace {
  stroke: var(--ct-queda);
}

.ct-dot {
  fill: var(--bg-primary);
  stroke: var(--text-primary);
  stroke-width: 1.75;
}

.ct-dot--alta {
  stroke: var(--ct-alta);
}

.ct-dot--fraco {
  stroke: var(--text-tertiary);
  stroke-width: 1.25;
}

.ct-bar {
  fill: var(--text-primary);
  opacity: 0.8;
}

.ct-bar--token {
  fill: var(--ct-queda);
  opacity: 1;
}

.ct-bar--software {
  fill: var(--ct-queda);
  opacity: 0.6;
}

.ct-bar--hardware,
.ct-bar--nuvem {
  fill: var(--text-primary);
  opacity: 0.35;
}

.ct-bar--antes {
  fill: var(--text-primary);
  opacity: 0.32;
}

.ct-bar--depois {
  fill: var(--ct-alta);
  opacity: 1;
}

.ct-faixa {
  fill: var(--ct-faixa);
  stroke: var(--border-color);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.ct-faixa--h100 {
  fill: var(--ct-faixa);
}

.ct-seg--algoritmo {
  fill: var(--ct-queda);
}

/* Opacidade alta o suficiente para o rótulo branco de dentro ter contraste. */
.ct-seg--hardware {
  fill: var(--text-primary);
  opacity: 0.62;
}

.ct-seg--conc {
  fill: var(--ct-queda);
  opacity: 0.68;
}

.ct-bar--margem {
  fill: var(--text-primary);
  opacity: 0.5;
}

/* Régua de PUE: o que já foi extraído contra o que sobrou. */
.ct-trilho--extraido {
  fill: var(--ct-faixa);
  stroke: var(--border-color);
  stroke-width: 1;
}

.ct-trilho--restante {
  fill: var(--ct-alta);
  opacity: 0.75;
}

.ct-marco {
  stroke: var(--text-primary);
  stroke-width: 1;
  opacity: 0.55;
}

.ct-tick {
  stroke: var(--text-tertiary);
  stroke-width: 1;
}

/* Etapas de uma tarefa: entrada e saída contra consumo interno. */
.ct-etapa--io {
  fill: var(--text-primary);
  opacity: 0.75;
}

.ct-etapa--interno {
  fill: var(--ct-alta);
  opacity: 0.62;
}

.ct-etapa__div {
  stroke: var(--bg-primary);
  stroke-width: 1.25;
}

.ct-teto {
  fill: none;
  stroke: var(--ct-alta);
  stroke-width: 1;
  stroke-dasharray: 4 3;
}

.ct-cone {
  stroke: none;
}

.ct-cone--queda {
  fill: var(--ct-queda);
  opacity: 0.24;
}

.ct-cone--alta {
  fill: var(--ct-alta);
  opacity: 0.24;
}

.ct-seta {
  fill: none;
  stroke: var(--ct-alta);
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- Números soltos ------------------------------------------------ */

.ct-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 0.85rem;
  margin: 1.75rem 0;
  padding: 0;
  list-style: none;
}

.ct-stats li {
  padding: 0.9rem 1rem;
  border: 1px solid var(--border-color);
}

.ct-stats__valor {
  display: block;
  font-size: 1.4rem;
  line-height: 1.15;
  font-weight: 600;
  color: var(--text-primary);
}

.ct-stats__valor--alta {
  color: var(--ct-alta);
}

.ct-stats__valor--queda {
  color: var(--ct-queda);
}

.ct-stats__rotulo {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-tertiary);
}

/* --- Tabela de preço ----------------------------------------------- */

.ct-tabela {
  width: 100%;
  margin: 1.75rem 0;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.ct-tabela th,
.ct-tabela td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  text-align: right;
  color: var(--text-secondary);
}

.ct-tabela th {
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  font-weight: 500;
}

.ct-tabela th:first-child,
.ct-tabela td:first-child {
  text-align: left;
  color: var(--text-primary);
}

.ct-tabela tbody tr:first-child td {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- Fotos com crédito de licença ---------------------------------- */

.ct-foto {
  margin: 2.5rem 0;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
}

.ct-foto img {
  display: block;
  width: 100%;
  height: auto;
  /* A foto é apoio e não deve competir com os gráficos, que são o dado. */
  filter: saturate(0.72) contrast(1.02);
}

[data-theme="dark"] .ct-foto img {
  filter: saturate(0.6) contrast(0.96) brightness(0.86);
}

.ct-foto figcaption {
  padding: 0.9rem 1.1rem 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.ct-foto__credito {
  display: block;
  margin-top: 0.55rem;
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--text-tertiary);
}

/* Os links herdam o tratamento de link do site (main.css usa
   `.content a:not(...)`, especificidade alta). Aqui só o tamanho. */
.ct-foto__credito a {
  font-size: inherit;
}

/* --- Leitura externa ----------------------------------------------- */

.ct-leitura {
  margin: 2.5rem 0;
  padding: 0;
  list-style: none;
  counter-reset: leitura;
}

.ct-leitura li {
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
}

.ct-leitura li:last-child {
  border-bottom: 1px solid var(--border-color);
}

.ct-leitura__titulo {
  display: block;
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.35;
  color: var(--text-primary);
}

/* Sem sublinhado próprio: main.css já sublinha e colore link de conteúdo,
   e duas decorações somadas viravam linha dupla. */
.ct-leitura__titulo a {
  font-family: inherit;
  font-size: inherit;
}

.ct-leitura__meta {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--text-tertiary);
}

.ct-leitura__porque {
  margin: 0.5rem 0 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --- Tabela comparativa: nuvem contra IA --------------------------- */

.ct-comp {
  margin: 2.5rem 0;
  padding: 1.25rem 1.25rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-primary);
}

.ct-comp__wrap {
  width: 100%;
  overflow-x: auto;
}

.ct-comp__tabela {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.ct-comp__tabela thead th {
  padding: 0 0.7rem 0.7rem;
  border-bottom: 1px solid var(--text-tertiary);
  font-size: 0.78rem;
  font-weight: 600;
  text-align: left;
  vertical-align: bottom;
  color: var(--text-primary);
}

.ct-comp__tabela thead th span {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.ct-comp__tabela tbody th[scope="row"] {
  width: 30%;
  padding: 0.6rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 500;
  text-align: left;
  vertical-align: top;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.ct-comp__tabela td {
  padding: 0.6rem 0.7rem;
  width: 35%;
  vertical-align: top;
  line-height: 1.5;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

/* Coluna de IA com leve destaque, porque é o assunto do estudo. */
.ct-comp__tabela .ct-comp__ia {
  background: var(--ct-faixa);
  color: var(--text-primary);
}

.ct-comp__secao th {
  padding: 1rem 0.7rem 0.4rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-align: left;
  color: var(--ct-alta);
}

/* Linha em que os dois lados são idênticos: o achado do prédio compartilhado. */
.ct-comp__linha--igual th[scope="row"],
.ct-comp__linha--igual td {
  color: var(--text-primary);
}

.ct-comp__linha--igual td {
  font-weight: 600;
}

.ct-comp__mark {
  display: inline-block;
  margin-left: 0.3rem;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  cursor: help;
}

/* Em tela estreita a tabela vira blocos empilhados: rolar na horizontal
   escondia justamente a coluna de IA, que é o assunto do estudo. */
@media (max-width: 700px) {
  .ct-comp {
    padding: 1rem 0.9rem 0.9rem;
  }

  .ct-comp__tabela {
    min-width: 0;
    font-size: 0.82rem;
  }

  .ct-comp__tabela thead {
    display: none;
  }

  .ct-comp__tabela tbody,
  .ct-comp__tabela tr,
  .ct-comp__tabela tbody th[scope="row"],
  .ct-comp__tabela td {
    display: block;
    width: auto;
  }

  .ct-comp__tabela tbody th[scope="row"] {
    padding: 0.75rem 0 0.35rem;
    border-bottom: 0;
    font-size: 0.86rem;
    font-weight: 600;
  }

  .ct-comp__tabela td {
    padding: 0.4rem 0 0.4rem 0.75rem;
    border-bottom: 0;
    border-left: 2px solid var(--border-color);
  }

  .ct-comp__tabela td::before {
    content: attr(data-rotulo);
    display: block;
    margin-bottom: 0.1rem;
    font-size: 0.66rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-tertiary);
  }

  .ct-comp__tabela .ct-comp__ia {
    background: none;
    border-left-color: var(--ct-alta);
  }

  .ct-comp__tabela tbody tr:not(.ct-comp__secao) {
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
  }

  .ct-comp__secao th {
    padding: 1.1rem 0 0.5rem;
  }
}

/* --- Caixa de destaque --------------------------------------------- */

.ct-callout {
  margin: 2rem 0;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--ct-alta);
  background: var(--bg-secondary);
}

.ct-callout--queda {
  border-left-color: var(--ct-queda);
}

.ct-callout h3 {
  margin: 0 0 0.5rem;
  font-size: 0.98rem;
  line-height: 1.35;
}

.ct-callout p {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

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

/* --- Conta de guardanapo ------------------------------------------- */

.ct-conta {
  margin: 1.75rem 0;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.ct-conta__linha {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0;
  border-bottom: 1px dotted var(--border-color);
}

.ct-conta__linha:last-child {
  border-bottom: 0;
  margin-top: 0.35rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
}

.ct-conta__valor {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* --- Infográfico: as três perguntas -------------------------------- */

.ct-info {
  margin: 2.5rem 0;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
}

.ct-info__head {
  padding: 1rem 1.2rem 0.9rem;
  border-bottom: 1px solid var(--border-color);
}

.ct-info__title {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
  line-height: 1.3;
}

.ct-info__lead {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.ct-info__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.ct-info__col {
  padding: 1.1rem 1.2rem 1.2rem;
  border-left: 1px solid var(--border-color);
}

.ct-info__col:first-child {
  border-left: 0;
}

.ct-info__n {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.ct-info__q {
  display: block;
  margin: 0.5rem 0 0.9rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.35;
  color: var(--text-primary);
}

.ct-info__seta {
  display: block;
  margin: 0 0 0.7rem;
  color: var(--text-tertiary);
}

.ct-info__seta--queda {
  color: var(--ct-queda);
}

.ct-info__seta--alta {
  color: var(--ct-alta);
}

.ct-info__seta--neutro {
  color: var(--text-primary);
  opacity: 0.7;
}

.ct-info__seta svg {
  display: block;
}

.ct-info__linha {
  display: grid;
  grid-template-columns: 5.2rem 1fr;
  gap: 0.6rem;
  padding: 0.45rem 0;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  line-height: 1.5;
}

.ct-info__k {
  color: var(--text-tertiary);
}

.ct-info__v {
  color: var(--text-secondary);
}

.ct-info__num {
  display: block;
  margin-top: 0.9rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border-color);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.15;
}

.ct-info__num--queda {
  color: var(--ct-queda);
}

.ct-info__num--alta {
  color: var(--ct-alta);
}

.ct-info__num--neutro {
  color: var(--text-primary);
}

.ct-info__num small {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.72rem;
  font-weight: 400;
  line-height: 1.45;
  color: var(--text-tertiary);
}

.ct-info__source {
  padding: 0.8rem 1.2rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--text-tertiary);
}

@media (max-width: 720px) {
  .ct-info__grid {
    grid-template-columns: 1fr;
  }

  .ct-info__col {
    border-left: 0;
    border-top: 1px solid var(--border-color);
  }

  .ct-info__col:first-child {
    border-top: 0;
  }
}

/* --- Camadas do piso ----------------------------------------------- */

.ct-piso {
  margin: 1.75rem 0;
  padding: 0;
  list-style: none;
}

.ct-piso li {
  padding: 0.9rem 0;
  border-top: 1px solid var(--border-color);
}

.ct-piso li:last-child {
  border-bottom: 1px solid var(--border-color);
}

.ct-piso__nome {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.92rem;
}

.ct-piso__meta {
  margin-left: 0.4rem;
  font-size: 0.75rem;
  color: var(--ct-alta);
}

.ct-piso__o-que {
  margin: 0.3rem 0 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

@media (max-width: 640px) {
  .ct-chart {
    margin: 0 -0.5rem;
  }

  .ct-tldr__list li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .ct-tabela {
    font-size: 0.8rem;
  }

  .ct-tabela th,
  .ct-tabela td {
    padding: 0.5rem 0.4rem;
  }
}