/* ==========================================================================
   Seção 05 · Por dentro
   Desktop: capa fixa à esquerda que troca conforme o módulo lido à direita.
   Mobile: cada módulo traz a própria capa. Depois: "como você usa" (linha
   que se desenha com o scroll) e "ao final" (checklist que se marca).
   ========================================================================== */

.modules {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-16) var(--grid-gap);
}

/* ---------------------------------------------------------- Capa fixa */
.modules__aside {
  display: none;
}

.modules__stage {
  position: relative;
  width: min(100%, 21rem);
  aspect-ratio: 5 / 7;
  margin-inline: auto;
}

.modules__stage::before {
  content: "";
  position: absolute;
  inset: -18%;
  z-index: -1;
  background: radial-gradient(closest-side, rgb(var(--rgb-mint) / 0.16), transparent);
  filter: blur(var(--blur-lg));
}

.modules__stage .book {
  position: absolute;
  inset: 0;
  opacity: 0;
  translate: 0 28px;
  rotate: -4deg;
  scale: 0.94;
  transition:
    opacity var(--dur-slow) var(--ease-out),
    translate var(--dur-slower) var(--ease-spring),
    rotate var(--dur-slower) var(--ease-spring),
    scale var(--dur-slower) var(--ease-spring);
}

.modules__stage .book.is-past {
  translate: 0 -28px;
  rotate: 4deg;
}

.modules__stage .book.is-active {
  opacity: 1;
  translate: 0 0;
  rotate: 0deg;
  scale: 1;
}

.modules__progress {
  display: flex;
  gap: var(--space-2);
  width: min(100%, 21rem);
  margin: var(--space-10) auto 0;
}

.modules__seg {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-disabled);
  transition: color var(--dur-base) var(--ease-out);
}

.modules__seg::before {
  content: "";
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--ink-600);
  transition: background-color var(--dur-base) var(--ease-out);
}

.modules__seg.is-past {
  color: var(--color-text-tertiary);
}

.modules__seg.is-past::before {
  background: var(--color-accent-deep);
}

.modules__seg.is-active {
  color: var(--color-accent);
}

.modules__seg.is-active::before {
  background: var(--color-accent);
  box-shadow: var(--glow-sm);
}

/* -------------------------------------------------------------- Módulo */
.modules__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
}

.module {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  scroll-margin-top: calc(var(--header-h) + var(--space-8));
}

.module__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
}

.module__thumb {
  width: 5.5rem;
  margin-bottom: var(--space-3);
}

.module__keys {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.module__block {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.module__topics {
  display: flex;
  flex-direction: column;
  list-style: none;
}

.module__topics li {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-top: var(--border-width) solid var(--color-border);
  color: var(--color-text-secondary);
}

.module__topics li::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: none;
  translate: 0 -2px;
  background: var(--color-accent);
}

.module__exercise,
.module__audio {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-md);
}

.module__exercise {
  background: rgb(var(--rgb-mint) / 0.05);
  box-shadow: inset 0 0 0 1px rgb(var(--rgb-mint) / 0.2);
  color: var(--color-text);
}

.module__exercise .t-label {
  margin-bottom: var(--space-2);
  color: var(--color-accent);
}

.module__audio {
  align-items: center;
  border: var(--border-width) dashed var(--color-border-strong);
  color: var(--color-text-secondary);
}

.module__audio-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.module__audio-body strong {
  margin-right: var(--space-2);
  font-weight: var(--weight-medium);
  color: var(--color-text);
}

.module__icon {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  flex: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--color-on-accent);
  background: var(--color-accent);
}

.module__icon--quiet {
  color: var(--color-accent);
  background: var(--color-accent-soft);
}

/* -------------------------------------------------------- Como você usa */
.usage {
  margin-top: var(--space-32);
}

.usage__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 40rem;
  margin-bottom: var(--space-12);
}

.usage__steps {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-10) var(--grid-gap);
  list-style: none;
}

/* Trilho + preenchimento que acompanha o scroll (--p) */
.usage__steps::before,
.usage__steps::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.375rem;
  width: 1px;
  background: var(--color-border-strong);
}

.usage__steps::after {
  background: linear-gradient(180deg, var(--color-accent-deep), var(--color-accent));
  transform: scaleY(var(--p, 0));
  transform-origin: top;
}

.usage__step {
  --on: clamp(0, calc((var(--p, 0) - var(--at, 0)) * 12 + 1), 1);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  padding-left: 4rem;
}

/* Cada etapa acende quando a linha chega nela */
.usage__num {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  font-size: 1.05rem;
  color: color-mix(in srgb, var(--color-on-accent) calc(var(--on) * 100%), var(--color-accent));
  background: color-mix(in srgb, var(--color-accent) calc(var(--on) * 100%), var(--color-bg));
  box-shadow:
    inset 0 0 0 1px var(--color-border-strong),
    0 0 calc(var(--on) * 22px) rgb(var(--rgb-mint) / 0.35);
}

.usage__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-tight);
}

/* -------------------------------------------------------------- Ao final */
.outcome {
  --card-pad: clamp(2rem, 1.2rem + 3.5vw, 4rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-12);
  margin-top: var(--space-24);
  overflow: hidden;
}

.outcome__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
}

.outcome__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-block: var(--space-4);
  list-style: none;
}

.outcome__item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
  color: var(--color-text);
}

.outcome__tick {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
  border-radius: var(--radius-xs);
  font-size: 0.9rem;
  color: var(--color-on-accent);
  box-shadow: inset 0 0 0 1px var(--color-border-strong);
  transition: background-color var(--dur-base) var(--ease-out) calc(700ms + var(--n) * 260ms);
}

.outcome__tick .icon {
  stroke-width: 2.5;
  scale: 0;
  transition: scale var(--dur-slow) var(--ease-spring) calc(700ms + var(--n) * 260ms);
}

/* Marca os itens em sequência quando o card entra */
.outcome.is-revealed .outcome__tick,
html:not(.js) .outcome__tick {
  background-color: var(--color-accent);
}

.outcome.is-revealed .outcome__tick .icon,
html:not(.js) .outcome__tick .icon {
  scale: 1;
}

.outcome__quote {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-accent);
}

.outcome__quote p {
  font-size: var(--text-3xl);
  font-weight: var(--weight-medium);
  line-height: 1.15;
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
}

/* ============================================================ Responsivo */
@media (min-width: 48em) {
  .usage__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .usage__steps::before,
  .usage__steps::after {
    display: none;
  }

  .usage__step {
    padding-left: 0;
  }

  .usage__num {
    position: relative;
    margin-bottom: var(--space-2);
  }
}

@media (min-width: 64em) {
  .modules {
    grid-template-columns: repeat(var(--grid-columns), minmax(0, 1fr));
    align-items: start;
  }

  .modules__aside {
    display: block;
    grid-column: 1 / span 5;
    position: sticky;
    top: calc(var(--header-h) + 8vh);
  }

  .modules__list {
    grid-column: 7 / -1;
    gap: 0;
  }

  .module {
    justify-content: center;
    min-height: 82vh;
    padding-block: var(--space-12);
  }

  .module__thumb {
    display: none;
  }

  /* Linha horizontal entre as 4 etapas */
  .usage__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .usage__steps::before,
  .usage__steps::after {
    display: block;
    top: 1.375rem;
    bottom: auto;
    left: 0;
    right: 0;
    width: auto;
    height: 1px;
  }

  .usage__steps::after {
    background: linear-gradient(90deg, var(--color-accent-deep), var(--color-accent));
    transform: scaleX(var(--p, 0));
    transform-origin: left;
  }

  .outcome {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }
}