/* =============================================================================
   DESARROLLO DE APPS — composición de /desarrollo-de-apps.
   Depende de sistema.css y pagina.css. idea → experiencia → sistema → operación.
   ========================================================================== */
.app-cab { display: grid; gap: var(--s-5); }
.app-cab .h2 { margin-top: var(--s-5); max-width: 22ch; }
.app-cab .lead { max-width: 36ch; }
@media (min-width: 62rem) {
    .app-cab { grid-template-columns: minmax(0, 1fr) minmax(0, 24rem); gap: clamp(3rem, 5vw, 5rem); align-items: end; }
}

/* =============================================================================
   1. HERO — la superficie: la pantalla al frente, el sistema detrás
   ========================================================================== */
.app-hero { padding-block: clamp(3rem, 1.5rem + 6vw, 6.5rem) clamp(3.5rem, 2rem + 5vw, 7rem); }
.app-hero__grid { display: grid; gap: var(--s-8); }
.app-hero .display { margin-top: var(--s-6); max-width: 15ch; }
.app-hero .lead { margin-top: var(--s-6); max-width: 50ch; }
.app-hero__visual { display: none; }
@media (min-width: 62rem) {
    .app-hero__grid { grid-template-columns: minmax(0, 1fr) minmax(22rem, 28rem); gap: clamp(3rem, 6vw, 6rem); align-items: center; }
    .app-hero__visual { display: block; }
}

.sup { width: 100%; height: auto; overflow: visible; }
.sup__plano rect { fill: var(--c-paper); stroke: var(--c-ink-3); stroke-width: 1; vector-effect: non-scaling-stroke; }
.sup__plano text { font-family: var(--f-mono); font-size: 8.5px; letter-spacing: 0.08em; fill: var(--c-ink-3); opacity: 0; transition: opacity var(--d-base) var(--e-out) calc(700ms + var(--i, 1) * 180ms); }
.sup__plano { transform: translate(0, 0); opacity: 0.35; transition: transform 1s var(--e-out) calc(300ms + var(--i, 1) * 140ms), opacity 1s var(--e-out) calc(300ms + var(--i, 1) * 140ms); }
.sup.is-visible .sup__plano { transform: translate(calc(var(--i, 1) * 16px), calc(var(--i, 1) * -16px)); opacity: 1; }
.sup.is-visible .sup__plano text { opacity: 1; }
.sup__marco { fill: #FFFFFF; stroke: var(--c-ink); stroke-width: 1.25; vector-effect: non-scaling-stroke; }
.sup__barra { fill: var(--c-rule); }
.sup__campo { fill: var(--c-ink-3); } .sup__campo--c { fill: var(--c-rule); }
.sup__tarjeta { fill: none; stroke: var(--c-rule); stroke-width: 1; vector-effect: non-scaling-stroke; }
.sup__estado { fill: var(--c-signal); }
.sup__boton { fill: var(--c-ink); }
.sup__etq { font-family: var(--f-mono); font-size: 8.5px; letter-spacing: 0.1em; fill: var(--c-paper); } .sup__etq--c { text-anchor: middle; }
.sup__nota { font-family: var(--f-mono); font-size: 9px; letter-spacing: 0.08em; fill: var(--c-ink-2); opacity: 0; transition: opacity var(--d-base) var(--e-out) 1500ms; }
.sup__nota--d { fill: var(--c-ink-3); }
.sup.is-visible .sup__nota { opacity: 1; }

/* =============================================================================
   2. DE UNA IDEA A UNA APLICACIÓN REAL — la misma pantalla gana definición
   ========================================================================== */
.entradas { display: grid; gap: var(--s-2); align-self: end; }
.entrada-idea { font-size: var(--t-small); color: var(--c-ink-2); padding-left: var(--s-4); position: relative; opacity: 0; transform: translateX(-6px); transition: opacity var(--d-base) var(--e-out) calc(var(--i, 0) * 110ms), transform var(--d-base) var(--e-out) calc(var(--i, 0) * 110ms); }
.entrada-idea::before { content: ''; position: absolute; left: 0; top: 0.6em; width: 5px; height: 5px; background: var(--c-ink-3); }
.entradas.is-visible .entrada-idea { opacity: 1; transform: none; }

.ruta { margin-top: var(--s-9); display: grid; gap: var(--s-7); }
.etapa { position: relative; padding-top: var(--s-6); display: grid; gap: var(--s-2); justify-items: start; }
.etapa::before { content: ''; position: absolute; left: 0; top: 5px; width: 100%; height: var(--hairline); background: var(--c-rule); transform: scaleX(0); transform-origin: left; transition: transform 700ms var(--e-out) calc(var(--i, 0) * 180ms); }
.ruta.is-visible .etapa::before { transform: scaleX(1); }
.etapa:last-child::before { background: linear-gradient(to right, var(--c-rule), transparent); }
.etapa::after { content: ''; position: absolute; left: 0; top: 0; width: 11px; height: 11px; border: var(--hairline) solid var(--c-ink); background: var(--c-paper); }
.etapa:last-child::after { background: var(--c-signal); border-color: var(--c-signal); }
.etapa__fig { width: 5rem; height: auto; overflow: visible; margin-bottom: var(--s-3); opacity: 0; transform: translateY(6px); transition: opacity var(--d-slow) var(--e-out) calc(200ms + var(--i, 0) * 180ms), transform var(--d-slow) var(--e-out) calc(200ms + var(--i, 0) * 180ms); }
.ruta.is-visible .etapa__fig { opacity: 1; transform: none; }
.etapa__nombre { font-size: var(--t-h3); font-weight: 600; letter-spacing: -0.02em; }
.etapa__que { font-size: var(--t-small); color: var(--c-ink-2); line-height: 1.5; max-width: 26ch; }
@media (min-width: 48rem) { .ruta { grid-template-columns: repeat(4, 1fr); gap: var(--s-5); } .etapa::before { width: calc(100% + var(--s-5)); } }
.no-js .entrada-idea, .no-js .etapa__fig { opacity: 1; transform: none; }
.no-js .etapa::before { transform: none; }

/* =============================================================================
   3. EL ANILLO — la app en el centro; el producto la envuelve (grafito)
   ========================================================================== */
.anillo { margin-top: var(--s-9); display: grid; gap: var(--s-8); align-items: center; }
.anillo__svg { width: 100%; max-width: 30rem; height: auto; margin-inline: auto; overflow: visible; }
.anillo__orbita { fill: none; stroke: var(--c-deep-rule); stroke-width: 1; stroke-dasharray: 1200; stroke-dashoffset: 1200; vector-effect: non-scaling-stroke; transition: stroke-dashoffset 1.6s var(--e-out) 200ms; }
.anillo.is-visible .anillo__orbita { stroke-dashoffset: 0; }
.anillo__radio { stroke: var(--c-deep-rule); stroke-width: 1; vector-effect: non-scaling-stroke; stroke-dasharray: 160; stroke-dashoffset: 160; transition: stroke-dashoffset 700ms var(--e-out) calc(600ms + var(--i, 0) * 110ms), stroke var(--d-fast) var(--e-out); }
.anillo.is-visible .anillo__radio { stroke-dashoffset: 0; }
.anillo__nodo { fill: var(--c-deep); stroke: var(--c-deep-ink-2); stroke-width: 1; vector-effect: non-scaling-stroke; transition: fill var(--d-fast) var(--e-out), stroke var(--d-fast) var(--e-out); }
.anillo__nodo.is-on { fill: var(--c-signal); stroke: var(--c-signal); }
.anillo__etq { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: 0.08em; fill: var(--c-deep-ink-2); transition: fill var(--d-fast) var(--e-out); }
.anillo__etq.is-on { fill: var(--c-deep-ink); }
.anillo__tel { fill: var(--c-deep-2); stroke: var(--c-deep-ink); stroke-width: 1.25; vector-effect: non-scaling-stroke; }
.anillo__linea { fill: var(--c-deep-rule); }
.anillo__boton { fill: var(--c-signal); }
.anillo__centro { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: 0.1em; fill: var(--c-deep-ink); }

.anillo__lista { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-2); }
.anillo__btn { display: grid; grid-template-columns: 1.75rem minmax(0, 1fr); gap: var(--s-2); align-items: baseline; width: 100%; padding: var(--s-3) var(--s-4); text-align: left; cursor: pointer; background: transparent; border: var(--hairline) solid var(--c-deep-rule); color: var(--c-deep-ink-2); font-size: 0.9375rem; font-weight: 500; transition: color var(--d-fast) var(--e-out), border-color var(--d-fast) var(--e-out); }
.anillo__btn .mono { color: var(--c-deep-ink-2); }
.anillo__btn:hover { color: var(--c-deep-ink); border-color: var(--c-deep-ink-2); }
.anillo__btn[aria-selected="true"] { color: var(--c-deep-ink); border-color: var(--c-signal); }
.anillo__paneles { margin-top: var(--s-5); padding-top: var(--s-5); border-top: var(--hairline) solid var(--c-deep-rule); min-height: 5rem; }
.anillo__que { font-size: var(--t-lead); line-height: var(--lh-lead); letter-spacing: -0.008em; color: var(--c-deep-ink); max-width: 36ch; }
.anillo__que[hidden] { display: none; }
@media (min-width: 62rem) { .anillo { grid-template-columns: minmax(0, 1fr) minmax(0, 26rem); gap: clamp(3rem, 6vw, 7rem); } }
.no-js .anillo__que[hidden] { display: block; } .no-js .anillo__que + .anillo__que { margin-top: var(--s-3); }
.no-js .anillo__orbita, .no-js .anillo__radio { stroke-dashoffset: 0; }

/* =============================================================================
   4. DÓNDE — situaciones de uso sobre un mismo riel
   ========================================================================== */
.donde { margin-top: var(--s-9); }
.donde__sitios { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6); }
.sitio { display: grid; gap: var(--s-2); justify-items: start; opacity: 0; transform: translateY(8px); transition: opacity var(--d-slow) var(--e-out) calc(var(--i, 0) * 140ms), transform var(--d-slow) var(--e-out) calc(var(--i, 0) * 140ms); }
.donde.is-visible .sitio { opacity: 1; transform: none; }
.sitio__marco { position: relative; display: block; border: var(--hairline) solid var(--c-ink); background: #FFFFFF; margin-bottom: var(--s-3); }
.sitio__marco i { position: absolute; background: var(--c-rule); }
.sitio__marco--tel { width: 3rem; height: 5.5rem; border-radius: 8px; }
.sitio__marco--tel i:nth-child(1) { left: 0.6rem; right: 0.6rem; top: 0.9rem; height: 4px; } .sitio__marco--tel i:nth-child(2) { left: 0.6rem; right: 0.6rem; bottom: 0.7rem; height: 8px; background: var(--c-signal); }
.sitio__marco--web { width: 7.5rem; height: 5rem; }
.sitio__marco--web i:nth-child(1) { left: 0; right: 0; top: 0; height: 10px; border-bottom: var(--hairline) solid var(--c-rule); background: var(--c-paper-2); } .sitio__marco--web i:nth-child(2) { left: 0.6rem; top: 1.3rem; width: 2rem; bottom: 0.6rem; }
.sitio__marco--mostrador { width: 6.5rem; height: 4.25rem; border-radius: 4px; }
.sitio__marco--mostrador i:nth-child(1) { left: 0.6rem; right: 0.6rem; top: 0.6rem; height: 1.6rem; } .sitio__marco--mostrador i:nth-child(2) { left: 0.6rem; width: 2.2rem; bottom: 0.6rem; height: 8px; background: var(--c-signal); }
.sitio__marco--admin { width: 7.5rem; height: 5rem; }
.sitio__marco--admin i:nth-child(1) { left: 0; top: 0; bottom: 0; width: 1.6rem; border-right: var(--hairline) solid var(--c-rule); background: var(--c-paper-2); } .sitio__marco--admin i:nth-child(2) { left: 2.2rem; right: 0.6rem; top: 0.8rem; height: 6px; }
.sitio__que { font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.016em; }
.donde__riel { position: relative; margin-top: var(--s-7); height: var(--hairline); background: var(--c-ink); transform: scaleX(0); transform-origin: left; transition: transform 900ms var(--e-out) 500ms; }
.donde.is-visible .donde__riel { transform: scaleX(1); }
.donde__riel .mono { position: absolute; right: 0; top: var(--s-3); color: var(--c-ink); }
.donde__riel::before { content: ''; position: absolute; left: 0; top: -4px; width: 9px; height: 9px; background: var(--c-signal); }
@media (min-width: 48rem) { .donde__sitios { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.no-js .sitio { opacity: 1; transform: none; } .no-js .donde__riel { transform: none; }

/* =============================================================================
   5. EL VIAJE — un toque dispara una operación (secuencia que se repite)
   ========================================================================== */
.viaje { --t: 800ms; --t0: 500ms; position: relative; margin-top: var(--s-9); display: grid; gap: var(--s-7); }
.viaje__tel { position: relative; width: 9rem; padding: var(--s-5) var(--s-4); border: var(--hairline) solid var(--c-ink); border-radius: 14px; background: #FFFFFF; display: grid; gap: var(--s-3); }
.viaje__boton { display: block; padding: var(--s-2) 0; text-align: center; background: var(--c-ink); color: var(--c-paper); font-size: var(--t-small); font-weight: 600; }
.viaje.is-visible .viaje__boton { animation: viaje-tap 300ms var(--e-out) var(--t0) 1; }
@keyframes viaje-tap { 50% { transform: scale(0.96); background: var(--c-signal); color: var(--c-ink); } }
.viaje__estados { position: relative; display: block; height: 1.4em; font-family: var(--f-mono); font-size: var(--t-micro); letter-spacing: var(--ls-mono); text-transform: uppercase; color: var(--c-ink-2); }
.viaje__estado { position: absolute; left: 0; top: 0; opacity: 0; }
.viaje.is-visible .viaje__estado { animation: viaje-estado calc(var(--t) * 1.6) linear calc(var(--t0) + 300ms + var(--i, 0) * var(--t) * 1.5) 1 forwards; }
.viaje.is-visible .viaje__estado--fin { animation-name: viaje-estado-fin; color: var(--c-ink); }
@keyframes viaje-estado { 0%, 95% { opacity: 1; } 100% { opacity: 0; } }
@keyframes viaje-estado-fin { to { opacity: 1; } }

.viaje__estaciones { display: grid; gap: var(--s-5); }
.estacion { position: relative; display: grid; gap: var(--s-1); padding-top: var(--s-5); color: var(--c-ink-3); }
.estacion::before { content: ''; position: absolute; left: 0; top: 4px; width: 100%; height: var(--hairline); background: var(--c-rule); }
.estacion::after { content: ''; position: absolute; left: 0; top: 0; width: 9px; height: 9px; border: var(--hairline) solid var(--c-ink-3); background: var(--c-paper); }
.viaje.is-visible .estacion { animation: estacion-on 1ms linear calc(var(--t0) + var(--i, 0) * var(--t)) 1 forwards; }
.viaje.is-visible .estacion::after { animation: estacion-nodo 1ms linear calc(var(--t0) + var(--i, 0) * var(--t)) 1 forwards; }
@keyframes estacion-on { to { color: var(--c-ink); } }
@keyframes estacion-nodo { to { background: var(--c-signal); border-color: var(--c-signal); } }
.estacion__nombre { font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.016em; }

@media (min-width: 62rem) {
    .viaje { grid-template-columns: 9rem minmax(0, 1fr); gap: var(--s-8); align-items: center; }
    .viaje__estaciones { grid-template-columns: repeat(5, 1fr); gap: var(--s-4); }
    .estacion::before { width: calc(100% + var(--s-4)); }
    .estacion:last-child::before { width: 100%; background: linear-gradient(to right, var(--c-rule), transparent); }
    /* El pulso recorre el riel de estaciones de principio a fin. */
    .viaje__estaciones { position: relative; }
    .viaje__estaciones::after { content: ''; position: absolute; left: 0; top: 4px; width: 22px; height: 3px; margin-top: -1px; background: var(--c-signal); opacity: 0; }
    .viaje.is-visible .viaje__estaciones::after { animation: viaje-pulso calc(var(--t) * 4) linear var(--t0) 1 forwards; }
    @keyframes viaje-pulso { 0% { opacity: 1; left: 0; } 95% { opacity: 1; } 100% { opacity: 0; left: calc(100% - 22px); } }
}
.viaje__pie { margin-top: var(--s-6); }
.no-js .estacion { color: var(--c-ink); } .no-js .estacion::after { background: var(--c-signal); border-color: var(--c-signal); }
.no-js .viaje__estado--fin { opacity: 1; } .no-js .viaje__pie { display: none; }

/* =============================================================================
   6. CRECER — el alcance de hoy y los huecos preparados
   ========================================================================== */
.crecer { display: grid; gap: var(--s-8); align-items: center; }
.crecer .h2 { margin-top: var(--s-5); max-width: 20ch; }
.crecer .lead { margin-top: var(--s-6); max-width: 44ch; }
.crecer__mapa { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-3); max-width: 24rem; }
.crecer__nucleo { grid-column: 1 / -1; display: grid; gap: var(--s-1); padding: var(--s-5) var(--s-5); border: var(--hairline) solid var(--c-ink); background: #FFFFFF; font-weight: 600; letter-spacing: -0.016em; }
.crecer__nucleo .mono { color: var(--c-ink-3); }
.hueco { display: grid; place-items: center; padding: var(--s-4); border: var(--hairline) dashed var(--c-rule); color: var(--c-ink-3); font-size: var(--t-small); text-align: center; opacity: 0; transition: opacity var(--d-base) var(--e-out) calc(300ms + var(--i, 0) * 160ms), border-color var(--d-base) var(--e-out) calc(300ms + var(--i, 0) * 160ms); }
.crecer__mapa.is-visible .hueco { opacity: 1; border-color: var(--c-ink-3); }
@media (min-width: 62rem) { .crecer { grid-template-columns: minmax(0, 1fr) minmax(0, 24rem); gap: clamp(3rem, 6vw, 7rem); } .crecer__mapa { grid-template-columns: repeat(3, minmax(0, 1fr)); } .crecer__nucleo { grid-column: 2; grid-row: 1 / span 2; align-content: center; } .hueco:nth-child(1) { grid-column: 1; grid-row: 1; } .hueco:nth-child(2) { grid-column: 3; grid-row: 1; } .hueco:nth-child(4) { grid-column: 1; grid-row: 2; } .hueco:nth-child(5) { grid-column: 3; grid-row: 2; } }
.no-js .hueco { opacity: 1; }

/* Sin JS: la superficie aparece ya desplegada. */
.no-js .sup__plano { transform: translate(calc(var(--i, 1) * 16px), calc(var(--i, 1) * -16px)); opacity: 1; }
.no-js .sup__plano text, .no-js .sup__nota { opacity: 1; }