/* Prototipo interactivo de DERATEK: la web se escribe y se dibuja al bajar.
   Todo depende de .fx (lo pone interactivo.js); sin JS la web se ve completa. */

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ── Cursor de escribir ── */
.caret { display: inline-block; width: 2px; height: 1em; margin-left: 3px; vertical-align: -0.12em; background: var(--gold); animation: blink 1s steps(1) infinite; }
.caret-big { width: 0.06em; height: 0.82em; margin-left: 0.08em; vertical-align: -0.04em; }
@keyframes blink { 50% { opacity: 0; } }

/* ── Portada: línea de consola y frase que cambia ── */
.prompt { font: 500 14px/1.4 ui-monospace, "Cascadia Mono", Consolas, monospace; color: var(--muted); margin-bottom: 22px; min-height: 1.4em; }
.prompt-sign { color: var(--gold); }
.prompt.is-done .caret { display: none; }
.prompt-ok { color: var(--gold); }
.rotor { white-space: normal; }

/* ── Titulares que se escriben al llegar ── */
.fx .type-in .ch { opacity: 0; }
.fx .type-in .ch.on { opacity: 1; }
.fx .type-in.is-typing::after { content: ""; display: inline-block; width: 0.06em; height: 0.8em; margin-left: 0.06em; background: var(--gold); vertical-align: -0.04em; }

/* ── Párrafos que se iluminan palabra a palabra ── */
.fx .reveal .w { opacity: 0.18; transition: opacity 120ms linear; }

/* ── Automatización en directo ── */
.flow-sec { padding: 0; position: relative; }
.flow-stage { padding: 112px 0; }
.flow { list-style: none; position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; padding-top: 30px; }
.flow::before, .flow-fill { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; }
.flow::before { background: var(--line-strong); }
.flow-fill { background: var(--gold); transform-origin: left; transform: scaleX(0); }
.node { position: relative; display: flex; flex-direction: column; gap: 12px; }
.node::before { content: ""; position: absolute; top: -36px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--black); border: 2px solid var(--line-strong); transition: background-color 300ms ease, border-color 300ms ease; }
.node-tag { font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); transition: color 300ms ease; }
.node-meta { font-size: 14px; color: var(--muted); }
.bubble { align-self: flex-start; max-width: 100%; padding: 12px 14px; background: var(--surface-2); border: 1px solid var(--line); font-size: 15px; line-height: 1.45; min-height: 3.3em; }
.bubble-out { background: var(--gold-soft); border-color: rgba(227, 173, 43, 0.35); }
.slot { padding: 12px 14px; border-left: 3px solid var(--gold); background: var(--surface-2); font-size: 15px; }
.slot b { display: block; font-size: 17px; }
.flow-note { margin-top: 40px; font-size: 13px; color: var(--muted); }

.fx .node { opacity: 0.32; transform: translateY(10px); transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out); }
.fx .node.is-on { opacity: 1; transform: none; }
.node.is-on::before { background: var(--gold); border-color: var(--gold); }
.node.is-on .node-tag { color: var(--gold); }

/* En escritorio la escena se queda fija mientras bajas */
@media (min-width: 961px) {
  .fx .flow-sec { height: 260vh; }
  .fx .flow-stage { position: sticky; top: 68px; min-height: calc(100dvh - 68px); display: flex; align-items: center; padding: 48px 0; }
}

/* En móvil, los pasos van en vertical con la línea a la izquierda */
@media (max-width: 960px) {
  .flow-stage { padding: 72px 0; }
  .flow { grid-template-columns: 1fr; gap: 34px; padding: 0 0 0 30px; }
  .flow::before, .flow-fill { left: 5px; right: auto; top: 6px; bottom: 6px; width: 2px; height: auto; }
  .flow-fill { transform-origin: top; transform: scaleY(0); }
  .node::before { top: 2px; left: -30px; }
}

/* ── Proceso: la línea dorada se dibuja paso a paso ── */
.steps.draw li { position: relative; border-top-color: var(--line-strong); }
.step-fill { position: absolute; left: 0; right: 0; top: -2px; height: 2px; background: var(--gold); transform-origin: left; transform: scaleX(0); }
.fx .steps.draw .step-n { color: var(--muted); transition: color 300ms ease; }
.fx .steps.draw li.is-on .step-n { color: var(--gold); }
html:not(.fx) .step-fill { transform: none; }

/* Sin animaciones si el sistema lo pide: todo se ve terminado */
@media (prefers-reduced-motion: reduce) {
  .caret { animation: none; }
  .fx .node, .fx .reveal .w { transition: none; }
}