/* Sección de operación continua. La línea avanza por los meses, arriba lo que
   cambia en la empresa y abajo lo que EnLínea entrega. */

.opera { width: min(1180px, calc(100% - 32px)); margin: clamp(36px, 5vh, 56px) auto 0; }
.o-guia { display: flex; justify-content: space-between; gap: 16px; margin: 0 4px 14px; font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--gris); }

.o-carril { position: relative; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.o-carril::before, .o-carril::after { content: ''; position: absolute; left: 0; right: 0; top: 50%; height: 3px; margin-top: -1.5px; border-radius: 2px; }
.o-carril::before { background: #dcdad2; }
.o-carril::after { background: var(--linea-viva); transform: scaleX(var(--avance, 0)); transform-origin: 0 50%; transition: transform .9s var(--ease-in-out); }
.opera.reinicia .o-carril::after { transition: none; }

.o-carril li { position: relative; z-index: 1; display: grid; grid-template-rows: 1fr auto 1fr; gap: 14px; justify-items: center; min-width: 0; }

.o-pide, .o-entrega { margin: 0; width: 100%; padding: 14px; border-radius: 14px; font-size: 13.5px; line-height: 1.35; opacity: 0; }
.o-pide { align-self: end; background: #e9e7df; color: #4c4b47; font-weight: 500; transform: translateY(10px); }
.o-entrega { align-self: start; background: var(--blanco); box-shadow: inset 0 0 0 1px var(--borde), 0 12px 28px rgba(14, 90, 84, .1); font-weight: 650; transform: translateY(-10px); }
.o-entrega em { display: inline-block; margin-top: 10px; padding: 4px 9px; border-radius: 999px; background: #d5f2ea; font-family: var(--mono); font-size: 10.5px; font-style: normal; font-weight: 500; color: var(--linea-honda); }
li.pide .o-pide { opacity: 1; transform: none; transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
li.entrega .o-entrega { opacity: 1; transform: none; transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }

.o-nodo { display: grid; justify-items: center; gap: 0; }
.o-nodo b { padding: 4px 12px; border-radius: 999px; background: var(--papel); box-shadow: inset 0 0 0 2px #dcdad2; font-family: var(--mono); font-size: 11.5px; font-weight: 500; color: var(--gris); transition: background-color .35s ease, color .35s ease, box-shadow .35s ease; }
li.pide .o-nodo b { box-shadow: inset 0 0 0 2px var(--linea-viva); color: var(--tinta); }
li.entrega .o-nodo b { background: var(--linea-honda); box-shadow: none; color: var(--blanco); }

.opera.reinicia .o-pide, .opera.reinicia .o-entrega { opacity: 0; transition: opacity .4s ease; }
.opera > .ficticio { margin: 16px 4px 0; text-align: right; }

@media (max-width: 860px) {
  .o-guia { display: none; }
  .o-carril { grid-template-columns: 1fr; gap: 12px; padding-left: 30px; }
  .o-carril::before, .o-carril::after { left: 9px; right: auto; top: 0; bottom: 0; width: 3px; height: auto; margin: 0; }
  .o-carril::after { transform: scaleY(var(--avance, 0)); transform-origin: 50% 0; }
  .o-carril li { grid-template-rows: auto; gap: 6px; justify-items: stretch; }
  .o-nodo { order: -1; justify-items: start; }
  .o-nodo b { margin-left: -38px; }
  .o-pide, .o-entrega { transform: none; }
  .o-pide::before { content: 'Cambia en la empresa'; display: block; margin-bottom: 3px; font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: #85847e; }
  .opera > .ficticio { text-align: left; }
}

@media (prefers-reduced-motion: reduce) { .opera * , .o-carril::after { transition-duration: .01s !important; } }

/* Fija al scroll en escritorio. La altura extra es el recorrido. */
#operacion.fija { height: 260vh; padding: 0; }
#operacion.fija .opera-pin { position: sticky; top: 0; display: flex; flex-direction: column; justify-content: center; min-height: 100vh; min-height: 100svh; padding: 40px 0; box-sizing: border-box; }
#operacion.fija .opera { margin-top: clamp(28px, 4vh, 48px); }