/* Bitácora de obra (fx-bitacora.js) — sección oscura "plano". */

.bit { position: relative; height: calc((var(--fases, 4) + 1) * 100vh); }
.bit__escena {
  position: sticky; top: var(--barra-h-compacta);
  height: calc(100vh - var(--barra-h-compacta)); overflow: hidden;
  display: grid; grid-template-rows: auto 1fr; gap: 22px;
  max-width: calc(var(--max) + var(--gutter) * 2); margin-inline: auto; padding: 18px var(--gutter) 24px;
}
.bit__cuadro { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .28; z-index: 0; }
.bit__slot { position: absolute; inset: 0; z-index: 0; }

/* Regla de tiempo */
.bit-regla { position: relative; z-index: 1; height: 46px; margin: 0 8px; border-bottom: 1px solid var(--line-fuerte); }
.bit-regla::before { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 8px; background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 2%); }
.bit-regla__marca { position: absolute; bottom: 0; display: flex; align-items: baseline; gap: 8px; padding: 0 0 14px 8px; border-left: 1px solid var(--line-fuerte); font-family: var(--f-mono); font-size: var(--fs-dato-s); letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); white-space: nowrap; transition: color var(--t-medio); }
.bit-regla__marca b { color: var(--text-2); font-weight: 500; }
.bit-regla__marca.is-hecha { color: var(--cianotipo); border-color: var(--cianotipo); }
.bit-regla__marca.is-actual { color: #fff; border-color: var(--chispa); }
.bit-regla__marca.is-actual b { color: var(--chispa); }
.bit-regla__aguja { position: absolute; bottom: -6px; width: 12px; height: 12px; margin-left: -6px; background: var(--rojo-2); transform: rotate(45deg); box-shadow: 0 0 12px var(--rojo-2); }
@media (max-width: 1100px) { .bit-regla__marca span { display: none; } }

.bit__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(300px, 400px) 1fr; gap: clamp(24px, 4vw, 56px); min-height: 0; }

/* Panel de bitácora */
.bit-panel { align-self: center; display: grid; gap: 12px; padding: 22px; background: rgba(0, 14, 30, .72); border: 1px solid var(--line-fuerte); backdrop-filter: blur(6px); }
.bit-panel__folio { display: flex; justify-content: space-between; gap: 10px; padding-bottom: 10px; border-bottom: 1px dashed var(--line-fuerte); font-family: var(--f-mono); font-size: var(--fs-dato-s); letter-spacing: .12em; text-transform: uppercase; color: var(--text-muted); }
.bit-panel__folio span:first-child { color: var(--chispa); }
.bit-panel__fase { font-family: var(--f-mono); font-size: var(--fs-dato); letter-spacing: .16em; text-transform: uppercase; color: var(--cianotipo) !important; }
.bit-panel__t { font-family: var(--f-titulo); font-weight: 800; font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.3rem); line-height: 1; text-transform: uppercase; color: #fff; }
.bit-panel__d { font-size: .92rem; line-height: 1.5; min-height: 4.5em; }
.bit-panel.is-cambio .bit-panel__t, .bit-panel.is-cambio .bit-panel__d { animation: bit-cambio .5s var(--ease-out); }
@keyframes bit-cambio { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.bit-avance { display: flex; align-items: baseline; gap: 10px; margin-top: 6px; }
.bit-avance__k { font-family: var(--f-mono); font-size: var(--fs-dato-s); letter-spacing: .14em; text-transform: uppercase; color: var(--text-muted); }
.bit-avance__n { margin-left: auto; font-family: var(--f-titulo); font-weight: 800; font-size: 3.6rem; line-height: .9; color: #fff; font-variant-numeric: tabular-nums; }
.bit-avance__pct { font-family: var(--f-titulo); font-weight: 700; font-size: 1.6rem; color: var(--chispa); }
.bit-segs { display: grid; grid-template-columns: repeat(24, 1fr); gap: 3px; }
.bit-segs i { height: 10px; background: var(--line); transition: background var(--t-rapido); }
.bit-segs i.is-on { background: linear-gradient(var(--chispa), var(--rojo-2)); }
.bit-alcance { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 3px; max-height: 30vh; overflow: hidden; }
.bit-alcance li { position: relative; padding-left: 22px; font-size: .78rem; line-height: 1.35; color: var(--text-muted); transition: color var(--t-medio); }
.bit-alcance li::before { content: ""; position: absolute; left: 0; top: 3px; width: 11px; height: 11px; border: 1px solid var(--line-fuerte); }
.bit-alcance li.is-ok { color: var(--text); }
.bit-alcance li.is-ok::before { background: var(--cianotipo); border-color: var(--cianotipo); box-shadow: inset 0 0 0 2px var(--plano-bg); }

/* Mesa de fotos */
.bit-mesa { position: relative; min-height: 0; }
.bit-mesa__fase { position: absolute; inset: 0; pointer-events: none; }
.bit-foto {
  --rot: 0deg; --j: 0;
  position: absolute; width: clamp(160px, 17vw, 250px); margin: 0; padding: 7px 7px 22px; background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,.3), 0 18px 40px rgba(0,0,0,.45);
  opacity: 0; transform: translateY(-40px) rotate(calc(var(--rot) * 3)) scale(1.1);
  transition: opacity .45s var(--ease-out), transform .7s var(--ease-out), filter .5s;
}
.bit-foto::before { content: ""; position: absolute; left: 50%; top: -9px; width: 60px; height: 18px; margin-left: -30px; background: rgba(255, 241, 193, .55); transform: rotate(-3deg); }
.bit-foto img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.bit-mesa__fase.is-actual .bit-foto { opacity: 1; transform: rotate(var(--rot)); transition-delay: calc(var(--j) * 90ms); pointer-events: auto; }
.bit-mesa__fase.is-pasada .bit-foto { opacity: calc(.5 - var(--atras) * .12); transform: translate(calc(var(--atras) * -14px), calc(var(--atras) * -10px)) rotate(var(--rot)) scale(.9); filter: grayscale(.8) brightness(.7); }
.bit-mesa__sello { position: absolute; right: 6%; top: 8%; opacity: 0; transform: rotate(-10deg) scale(1.8); transition: opacity .2s, transform .28s cubic-bezier(.7, 0, .84, 0); font-size: .8rem; background: rgba(0, 14, 30, .5); }
.bit-mesa__fase.is-sellada.is-pasada .bit-mesa__sello { opacity: 0; }
.bit-mesa__fase.is-actual.is-sellada .bit-mesa__sello, .bit-mesa__fase.is-pasada:nth-last-child(2) .bit-mesa__sello { opacity: .9; transform: rotate(-10deg) scale(1); }

.bit-final { position: absolute; left: 0; right: 0; bottom: 2%; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 18px; opacity: 0; transform: translateY(20px); transition: opacity .5s, transform .5s var(--ease-out); pointer-events: none; }
.bit-final.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.bit-final__sello { padding: 10px 20px; border: 5px double var(--rojo-2); color: var(--rojo-2); font-family: var(--f-titulo); font-weight: 800; font-size: 1.8rem; letter-spacing: .14em; text-transform: uppercase; transform: rotate(-6deg); background: rgba(0, 14, 30, .75); }

/* Versión apilada */
.bit-simple { display: grid; gap: 18px; }
.bit-tarjeta { position: relative; display: grid; gap: 12px; padding: 20px; background: rgba(0, 14, 30, .6); border: 1px solid var(--line-fuerte); }
.bit-tarjeta__cab { display: flex; justify-content: space-between; font-family: var(--f-mono); font-size: var(--fs-dato-s); letter-spacing: .14em; text-transform: uppercase; color: var(--cianotipo); }
.bit-tarjeta__pct { color: var(--chispa); }
.bit-tarjeta__barra { height: 4px; background: var(--line); }
.bit-tarjeta__barra span { display: block; height: 100%; background: linear-gradient(90deg, var(--chispa), var(--rojo-2)); }
.bit-tarjeta__t { font-family: var(--f-titulo); font-weight: 800; font-size: 1.6rem; line-height: 1; text-transform: uppercase; color: #fff; }
.bit-tarjeta__d { font-size: .92rem; }
.bit-tarjeta__fotos { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.bit-tarjeta__fotos .bit-foto { position: relative; width: auto; opacity: 1; transform: none; padding: 5px 5px 14px; }
.bit-tarjeta__fotos .bit-foto::before { display: none; }
.bit-tarjeta__sello { justify-self: end; }
.bit-exp { justify-self: start; }

@media (max-width: 1024px) { .bit__grid { grid-template-columns: 320px 1fr; } }