/* =====================================================================
   Rafa Moreno — Short stories
   Carregado depois de home.css. O título fica preso atrás (sticky) e a
   "folha" com as histórias sobe por cima dele, como uma página de caderno.
   ===================================================================== */

body.stories { background: var(--bg); }

/* barra de progresso de leitura (mesma dos cases) */
.progress {
  position: fixed; top: 0; left: 0; z-index: 300;
  width: 100%; height: 3px; pointer-events: none;
  transform: scaleX(var(--read, 0)); transform-origin: left center;
  background: var(--primary);
}

/* ── Título preso atrás ─────────────────────────────────────────── */
.qs-stage { position: relative; }
.qs-title {
  position: sticky; top: 0; z-index: 0;
  min-height: 78vh; min-height: 78svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 140px 24px 80px;
  background: var(--bg);
  overflow: hidden;
}
.qs-title::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 40px 40px; opacity: .6;
  -webkit-mask-image: linear-gradient(#000 40%, transparent 100%);
          mask-image: linear-gradient(#000 40%, transparent 100%);
  animation: grid-pan 10s linear infinite;
}
.qs-title > * { position: relative; }
.qs-title__head {
  font-family: var(--display); font-weight: 400; text-transform: uppercase;
  font-size: clamp(2.5rem, 9vw, 7.8rem); line-height: 1.25;
  margin: .1em 0 28px;
  transform: scaleY(var(--stretch)); transform-origin: bottom center;
  color: var(--primary);
  /* recua e some enquanto a folha sobe (variáveis do stories.js) */
  opacity: var(--qs-fade, 1);
  translate: 0 var(--qs-shift, 0px);
  scale: var(--qs-scale, 1);
  animation: qs-rise .9s var(--ease) both;
}
.qs-title__sub {
  font-family: var(--serif); font-weight: 300; font-style: italic;
  font-size: clamp(1.15rem, 2vw, 1.6rem); color: var(--text-muted);
  opacity: var(--qs-fade, 1);
  animation: qs-rise .9s var(--ease) .15s both;
}
.qs-title .eyebrow { animation: qs-rise .9s var(--ease) both; }
@keyframes qs-rise { from { opacity: 0; translate: 0 40px; } }

/* ── A folha ────────────────────────────────────────────────────── */
.qs-sheet {
  position: relative; z-index: 2;
  max-width: 1240px; margin: -8vh auto 0;
  padding: clamp(28px, 4vw, 64px) clamp(20px, 5vw, 80px) clamp(64px, 8vw, 112px);
  background: var(--surface);
  border: 1px solid var(--border); border-bottom: 0;
  border-radius: 28px 28px 0 0;
  box-shadow: 0 -30px 80px rgba(0, 0, 0, .45);
}
@media (max-width: 1280px) { .qs-sheet { margin-inline: 16px; } }
@media (max-width: 560px) { .qs-sheet { margin-inline: 8px; border-radius: 20px 20px 0 0; } }

/* filtros por empresa */
.qs-filter {
  position: sticky; top: 84px; z-index: 5;
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  width: fit-content; max-width: 100%; margin: 0 auto clamp(40px, 6vw, 72px);
  padding: 6px; border-radius: 999px;
  background: rgba(23, 15, 20, .72);
  -webkit-backdrop-filter: blur(14px) saturate(1.4); backdrop-filter: blur(14px) saturate(1.4);
  border: 1px solid rgba(255, 255, 255, .08);
}
.qs-filter__btn {
  font-family: var(--mono); font-size: .85rem; letter-spacing: .02em;
  padding: 9px 18px; border-radius: 999px; border: 0; cursor: pointer;
  background: transparent; color: var(--text-muted);
  transition: background .25s, color .25s;
}
.qs-filter__btn span { opacity: .55; margin-left: 4px; font-variant-numeric: tabular-nums; }
.qs-filter__btn:hover { color: var(--text); }
.qs-filter__btn.is-active { background: var(--primary); color: var(--on-primary); }
.qs-filter__btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
@media (max-width: 560px) {
  .qs-filter {
    gap: 2px; padding: 4px; flex-wrap: nowrap; top: 72px;
    justify-content: flex-start; max-width: calc(100vw - 40px);
    overflow-x: auto; scrollbar-width: none;
  }
  .qs-filter::-webkit-scrollbar { display: none; }
  .qs-filter__btn { font-size: .74rem; padding: 8px 11px; white-space: nowrap; }
}

/* ── Uma história ──────────────────────────────────────────────── */
.story { padding-block: clamp(40px, 6vw, 72px); scroll-margin-top: 150px; }
.story + .story { border-top: 1px solid var(--border); }
.story.is-hidden { display: none; }
.story.is-entering { animation: story-in .6s var(--ease) both; }
@keyframes story-in { from { opacity: 0; translate: 0 24px; } }

.story__head { display: flex; flex-wrap: wrap; gap: clamp(28px, 5vw, 80px); margin-bottom: clamp(28px, 4vw, 48px); }
.story__ident { flex: 0 1 300px; min-width: 0; }
.story__num { font-family: var(--mono); font-size: .72rem; letter-spacing: .18em; color: var(--text-dim); margin-bottom: 18px; font-variant-numeric: tabular-nums; }
.story__subject { font-family: var(--sans); font-weight: 700; font-size: 1rem; }
.story__org { font-family: var(--mono); font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--primary); margin: 4px 0 16px; }
.story__title {
  font-family: var(--serif); font-weight: 300; font-style: italic;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem); line-height: 1.15; letter-spacing: -.01em;
  color: var(--title); text-wrap: balance;
}
.story__body { flex: 1 1 560px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.story__block h3 { font-family: var(--mono); font-size: .7rem; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 8px; }
.story__block p { font-family: var(--serif); font-weight: 300; font-size: 1.12rem; line-height: 1.6; color: var(--text-muted); max-width: 40em; }
.story__link {
  align-self: flex-start;
  font-family: var(--mono); font-size: .85rem; color: var(--text);
  padding: 10px 18px; border-radius: 999px; border: 1px solid var(--border);
  transition: border-color .2s, color .2s, gap .3s;
}
.story__link:hover { border-color: var(--primary); color: var(--primary); }

.story__media { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(12px, 2vw, 20px); }
.story__media--single { grid-template-columns: minmax(0, 1fr); }
.story__fig {
  position: relative; overflow: hidden; margin: 0;
  border-radius: 14px; border: 1px solid rgba(255, 255, 255, .08);
  background: var(--surface-2);
  --slice-bg: var(--surface); /* fatias do reveal na cor da folha */
}
.story__fig img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; transition: transform .9s var(--ease); }
.story__media--single .story__fig img { aspect-ratio: 16 / 8; object-fit: contain; background: var(--surface-2); }
.story__fig:hover img { transform: scale(1.03); }
@media (max-width: 640px) {
  .story__media { grid-template-columns: minmax(0, 1fr); }
  .story__media--single .story__fig img { aspect-ratio: 4 / 3; }
}

/* reveal das histórias ao rolar */
.story .story__head, .story .story__media { opacity: 0; translate: 0 30px; transition: opacity .8s var(--ease), translate .8s var(--ease); }
.story .story__media { transition-delay: .12s; }
.story.in .story__head, .story.in .story__media { opacity: 1; translate: 0 0; }

/* ── Ficha técnica (coluna da esquerda) ─────────────────────────── */
.story__spec { margin-top: 28px; display: flex; flex-direction: column; border-top: 1px solid var(--border); }
.story__spec-row { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.story__spec dt { font-family: var(--mono); font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-dim); padding-top: 2px; }
.story__spec dd { font-family: var(--mono); font-size: .78rem; line-height: 1.5; color: var(--text); }

/* ── Diagramas em texto ─────────────────────────────────────────── */
.dg {
  margin: 4px 0 0; padding: 18px 20px 14px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 12px;
  font-family: var(--mono); font-size: .8rem; line-height: 1.5; color: var(--text);
  overflow-x: auto;
}
.dg figcaption { margin-top: 14px; padding-top: 10px; border-top: 1px dashed var(--border); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--text-dim); }

/* etapas com setas */
.dg-flow { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; counter-reset: dg; }
.dg-flow li {
  counter-increment: dg; display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border);
}
.dg-flow li::before { content: counter(dg, decimal-leading-zero); color: var(--primary); font-size: .68rem; }
.dg-flow li + li { position: relative; margin-left: 18px; }
.dg-flow li + li::after { content: "→"; position: absolute; left: -20px; color: var(--text-dim); }

/* origem → resultado */
.dg-map { display: grid; gap: 0; }
.dg-map__row { display: grid; grid-template-columns: minmax(0, 1fr) 20px minmax(0, 1.3fr); gap: 10px; align-items: baseline; padding: 9px 0; border-bottom: 1px solid var(--border-soft); }
.dg-map__row:last-child { border-bottom: 0; }
.dg-map__k { color: var(--text); }
.dg-map__arrow { color: var(--text-dim); text-align: center; }
.dg-map__v { color: var(--text); }

/* barras */
.dg-bars { display: grid; gap: 10px; }
.dg-bars__row { display: grid; grid-template-columns: 150px 44px minmax(0, 1fr); gap: 12px; align-items: center; }
.dg-bars__l { color: var(--text-muted); }
.dg-bars__v { text-align: right; font-variant-numeric: tabular-nums; }
.dg-bars__bar { height: 8px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.dg-bars__bar span { display: block; height: 100%; width: calc(var(--v) * 1%); border-radius: inherit; background: var(--primary); transform-origin: left; transform: scaleX(0); transition: transform 1.1s var(--ease) .2s; }
.story.in .dg-bars__bar span { transform: scaleX(1); }

/* esquema */
.dg-code { margin: 0; white-space: pre; color: var(--text); font: inherit; tab-size: 2; }

@media (max-width: 640px) {
  .dg-flow { flex-direction: column; align-items: flex-start; }
  .dg-flow li + li { margin-left: 0; margin-top: 14px; }
  .dg-flow li + li::after { content: "↓"; left: 12px; top: -20px; }
  .dg-map__row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .dg-map__arrow { display: none; }
  .dg-bars__row { grid-template-columns: 110px 40px minmax(0, 1fr); gap: 8px; }
}
@media (prefers-reduced-motion: reduce) { .dg-bars__bar span { transform: none; transition: none; } }

/* fim da folha */
.qs-end { text-align: center; padding-top: clamp(56px, 8vw, 96px); border-top: 1px solid var(--border); }
.qs-end__link {
  display: inline-block; margin-top: .2em;
  font-family: var(--display); text-transform: uppercase;
  font-size: clamp(1.6rem, 4.2vw, 3.3rem); line-height: 1.3;
  transform: scaleY(var(--stretch)); transform-origin: bottom center;
  color: #fff;
  transition: color .35s ease;
}
.qs-end__link:hover { color: var(--warm); }

.stories .footer { position: relative; z-index: 2; background: var(--bg); }

@media (prefers-reduced-motion: reduce) {
  .qs-title::before, .qs-title__head, .qs-title__sub, .qs-title .eyebrow { animation: none; }
  .story .story__head, .story .story__media { opacity: 1; translate: none; transition: none; }
  .story.is-entering { animation: none; }
}