/* =========================================================
   Cache de prompt   componentes só desta página

   Camada 3 de 3: styles.css → llm.css → didatica.css → aqui.
   O comparador de prompts, os blocos reordenáveis, a lista de
   invalidadores e o painel de reuso.
   ========================================================= */

/* =========================
   Par lado a lado (A / B)
   ========================= */
.cch-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--md);
}

.cch-ta {
  width: 100%;
  padding: var(--sm);
  border: 1px solid var(--hair);
  border-radius: 9px;
  background: #fff;
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: calc(var(--md) / 1.22);
  line-height: 1.55;
  resize: vertical;
}

.cch-ta:focus {
  outline: none;
  border-color: var(--prompt-green);
  box-shadow: 0 0 0 3px rgba(63, 185, 80, .14);
}

/* =========================
   Diff: prefixo comum vs. divergência
   ========================= */
.cch-diff,
.cch-diff * {
  background: transparent;
}

.cch-diff {
  margin: 0;
  padding: var(--sm);
  border: 1px solid var(--hair);
  border-radius: 9px;
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: calc(var(--md) / 1.3);
  line-height: 1.55;
  /* pre-wrap e não pre: o texto do visitante não deve criar rolagem
     horizontal, e a posição do corte continua visível na quebra */
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 280px;
  overflow-y: auto;
}

.cch-diff__keep {
  color: #8ee6a1;
  background: rgba(63, 185, 80, .12);
}

.cch-diff__break {
  color: #ff9ab4;
  background: rgba(209, 67, 107, .14);
  text-decoration: underline;
  text-decoration-color: rgba(209, 67, 107, .45);
  text-underline-offset: 3px;
}

.cch-warn {
  margin-top: var(--md);
  padding: calc(var(--sm) / 1.3) var(--sm);
  border-left: 3px solid var(--prompt-green);
  border-radius: 0 8px 8px 0;
  background: rgba(63, 185, 80, .07);
  font-size: calc(var(--md) / 1.1);
  color: var(--ink-80);
}

.cch-warn.is-bad {
  border-left-color: var(--c-pink);
  background: rgba(209, 67, 107, .07);
}

/* =========================
   Blocos reordenáveis
   ========================= */
.cch-blocks {
  display: flex;
  flex-direction: column;
  gap: calc(var(--sm) / 1.6);
  margin-top: var(--md);
}

.cch-block {
  display: grid;
  grid-template-columns: 26px 1fr auto 66px auto;
  gap: calc(var(--sm) / 1.2);
  align-items: center;
  padding: calc(var(--sm) / 1.4) var(--sm);
  border: 1px solid var(--hair-soft);
  border-left: 3px solid var(--c, var(--hair));
  border-radius: 9px;
  background: #fff;
  transition: background .2s ease, opacity .2s ease;
}

.cch-block.is-volatile {
  border-style: dashed;
  border-left-style: solid;
  background: rgba(209, 67, 107, .05);
}

/* estável, mas depois do primeiro volátil: recalculado à toa */
.cch-block.is-wasted {
  background: repeating-linear-gradient(
    -45deg,
    rgba(209, 67, 107, .07) 0 8px,
    transparent 8px 16px
  );
  opacity: .82;
}

.cch-block__i {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(14, 16, 22, .06);
  color: var(--ink-45);
  font-size: calc(var(--sm) / 1.14);
  font-weight: 700;
}

.cch-block__body { min-width: 0; }
.cch-block__body b { display: block; font-size: calc(var(--md) / 1.06); }

.cch-block__body small {
  display: block;
  font-size: calc(var(--sm) / 1.1);
  color: var(--ink-45);
}

.cch-block__n {
  font-family: var(--font-mono);
  font-size: calc(var(--sm) / 1.02);
  color: var(--ink-45);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.cch-block__moves {
  display: flex;
  gap: 3px;
}

.cch-block__moves button {
  width: 26px;
  height: 26px;
  border: 1px solid var(--hair);
  border-radius: 6px;
  background: #fff;
  color: var(--ink-60);
  line-height: 1;
  transition: border-color .18s ease, color .18s ease, opacity .18s ease;
}

.cch-block__moves button:hover:not(:disabled) {
  border-color: var(--ink-45);
  color: var(--bg);
}

.cch-block__moves button:disabled { opacity: .3; cursor: default; }

/* =========================
   Invalidadores
   ========================= */
.cch-invs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--md);
}

.cch-inv {
  display: flex;
  gap: calc(var(--sm) / 1.2);
  padding: var(--sm);
  border: 1px solid var(--hair-soft);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}

.cch-inv:hover { border-color: var(--ink-45); }

.cch-inv.is-on {
  border-color: var(--c, var(--c-pink));
  background: color-mix(in srgb, var(--c, var(--c-pink)) 7%, #fff);
}

.cch-inv input {
  flex: 0 0 auto;
  margin-top: 3px;
  accent-color: var(--c, var(--c-pink));
}

.cch-inv b { display: block; font-size: calc(var(--md) / 1.04); }

.cch-inv small {
  display: block;
  margin-top: 2px;
  font-size: calc(var(--sm) / 1.06);
  color: var(--ink-60);
  line-height: 1.5;
}

.cch-inv em {
  display: block;
  margin-top: calc(var(--sm) / 2.4);
  font-family: var(--font-mono);
  font-size: calc(var(--sm) / 1.2);
  font-style: normal;
  color: var(--c, var(--c-pink));
}

/* =========================
   Reuso: escrita uma vez, leitura sempre
   ========================= */
.cch-reuse {
  display: flex;
  flex-direction: column;
  gap: calc(var(--sm) / 2.2);
  margin-top: var(--md);
}

.cch-reuse__row {
  display: grid;
  grid-template-columns: 34px 1fr 54px;
  gap: calc(var(--sm) / 1.3);
  align-items: center;
}

.cch-reuse__n,
.cch-reuse__tag {
  font-size: calc(var(--sm) / 1.1);
  color: var(--ink-45);
}

.cch-reuse__tag { text-align: right; }

.cch-reuse__bar {
  display: flex;
  height: 16px;
  border-radius: 5px;
  overflow: hidden;
  background: rgba(14, 16, 22, .05);
}

.cch-reuse__bar i { display: block; height: 100%; }
.cch-reuse__bar i.is-write { background: var(--c-amber); }
.cch-reuse__bar i.is-read { background: var(--c-green); }
.cch-reuse__bar i.is-full { background: var(--c-pink); }

/* =========================
   Leitura grande
   ========================= */
.cch-big {
  font-family: var(--font-mono);
  font-size: calc(var(--lg) / 1.15);
  font-weight: 700;
  line-height: 1;
  color: var(--bg);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* =========================
   Responsivo
   ========================= */
@media (max-width: 900px) {
  .cch-pair { grid-template-columns: 1fr; }
  .cch-invs { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .cch-block { grid-template-columns: 22px 1fr auto; row-gap: calc(var(--sm) / 2); }
  .cch-block__n { grid-column: 2; text-align: left; }
  .cch-block__moves { grid-column: 3; }
  .cch-big { font-size: var(--md); }
  .cch-diff { font-size: calc(var(--md) / 1.42); }
}