/* Muro de la Memoria
   Concepto: papelitos blancos sobre una pared azul noche, celeste de la bandera como único acento.
   Una sola página: en celular la navegación va abajo; en pantallas grandes hay una columna lateral con el QR. */

:root {
  --noche: #14264a;
  --noche-2: #1b3560;
  --celeste: #74acdf;
  --celeste-suave: #a9cdef;
  --papel: #f4f6f9;
  --papel-celeste: #e4effb;
  --papel-gris: #eaeef4;
  --tinta: #131a24;
  --texto: #f2f6fb;
  --suave: #b4c4dc;
  --linea: rgba(255, 255, 255, .18);
  --alerta: #ffb4ab;
  --sobre-celeste: #0b1626;
  --lat: clamp(17rem, 25vw, 23rem);

  --f-titulo: "Archivo", "Arial Narrow", Arial, sans-serif;
  --f-texto: "Newsreader", Georgia, "Times New Roman", serif;
  --f-ui: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--celeste); outline-offset: 2px; }
button { font: inherit; }

body.app {
  background: var(--noche);
  color: var(--texto);
  font-family: var(--f-ui);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  color-scheme: dark;
  min-height: 100vh; min-height: 100dvh;
  position: relative;
}
body.app::before {            /* pared: azul que aclara hacia abajo */
  content: ""; position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(60rem 38rem at 85% 108%, rgba(116, 172, 223, .36), transparent 70%),
    radial-gradient(48rem 30rem at 8% -8%, rgba(116, 172, 223, .18), transparent 70%),
    linear-gradient(180deg, #14264a 0%, #1b3560 100%);
}

/* ---------- Aviones de papel de fondo ---------- */
.fondo { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.avion {
  position: absolute; left: -12rem; width: var(--t, 7rem); height: auto; opacity: var(--o, .12);
  fill: none; stroke: #fff; stroke-width: 1.4; stroke-linejoin: round; stroke-linecap: round;
  animation: deriva var(--d, 140s) linear var(--r, 0s) infinite;
}
@keyframes deriva {
  from { transform: translate3d(0, 0, 0) rotate(var(--g, -8deg)); }
  to   { transform: translate3d(calc(100vw + 26rem), var(--dy, -10vh), 0) rotate(var(--g, -8deg)); }
}
.vuelo {
  position: fixed; left: 0; top: 0; width: 3.2rem; z-index: 60; pointer-events: none;
  filter: drop-shadow(0 3px 8px rgba(0, 0, 0, .45));
}
.vuelo svg { display: block; width: 100%; height: auto; }

.shell { position: relative; z-index: 1; min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }

/* ---------- Columna lateral (en celular es el encabezado) ---------- */
.lateral { padding: 1.25rem 1rem .25rem; display: flex; flex-direction: column; gap: 1rem; }
.marca { display: flex; align-items: flex-end; gap: .9rem; }
.cincuenta {
  font-family: var(--f-titulo); font-weight: 900; font-stretch: 75%;
  font-size: clamp(4.2rem, 22vw, 6rem); line-height: .8; letter-spacing: -.04em; color: var(--celeste);
}
.marca-texto { display: flex; flex-direction: column; gap: .15rem; min-width: 0; padding-bottom: .2rem; }
.etiqueta { font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--celeste-suave); }
.marca h1 {
  margin: 0; font-family: var(--f-titulo); font-weight: 800; font-stretch: 80%;
  font-size: 1.45rem; line-height: 1.05; text-transform: uppercase; text-wrap: balance;
}
.pregunta {
  margin: 0; font-family: var(--f-texto); font-weight: 500; color: #fff;
  font-size: clamp(1.3rem, 5.4vw, 1.7rem); line-height: 1.2; text-wrap: balance;
}
.qr-bloque, .pie-lat { display: none; }

/* Navegación: abajo en celular */
.nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: grid; grid-template-columns: 1fr 1fr; gap: .6rem;
  padding: .6rem 1rem calc(.6rem + env(safe-area-inset-bottom, 0px));
  background: rgba(15, 30, 58, .93); backdrop-filter: blur(8px);
  border-top: 1px solid var(--linea);
}
.nav-btn {
  color: var(--texto); background: transparent; border: 2px solid var(--linea); border-radius: 999px;
  font-weight: 800; font-size: .9rem; letter-spacing: .05em; text-transform: uppercase;
  padding: .7rem .5rem; min-height: 3rem; cursor: pointer;
  transition: background .2s, border-color .2s, transform .15s;
}
.nav-btn:active { transform: scale(.97); }
.nav-btn[aria-current="page"] { background: var(--celeste); border-color: var(--celeste); color: var(--sobre-celeste); }
.cuenta { font-variant-numeric: tabular-nums; display: inline-block; }
.cuenta.late { animation: late .7s ease; }
@keyframes late { 40% { transform: scale(1.5); } }

/* ---------- Contenido ---------- */
.contenido { --pad: 1rem; flex: 1; min-width: 0; padding: 0 var(--pad) 6.5rem; display: flex; flex-direction: column; }
.vista-escribir { width: min(100%, 38rem); margin-inline: auto; padding-top: 1.25rem; }
.vista-muro { flex: 1; display: flex; flex-direction: column; min-height: 0; }

/* ---------- Formulario ---------- */
.formulario { display: flex; flex-direction: column; gap: 1.1rem; }
.campo { display: flex; flex-direction: column; gap: .4rem; }
.campo label { font-weight: 700; font-size: .92rem; }
.campo .ayuda { font-weight: 400; color: var(--suave); }
textarea, input[type="text"] {
  width: 100%; font-family: var(--f-texto); font-size: 1.15rem; line-height: 1.4;
  color: var(--tinta); background: var(--papel);
  border: 3px solid transparent; border-radius: 4px; padding: .8rem .9rem;
}
textarea { min-height: 9rem; resize: vertical; }
textarea::placeholder, input::placeholder { color: #667386; }
textarea:focus, input[type="text"]:focus { outline: none; border-color: var(--celeste); }
.contador { align-self: flex-end; font-size: .8rem; color: var(--suave); font-variant-numeric: tabular-nums; }
.contador.casi { color: var(--alerta); font-weight: 700; }
.trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.boton {
  font-weight: 800; font-size: 1.05rem; letter-spacing: .04em; text-transform: uppercase;
  background: var(--celeste); color: var(--sobre-celeste); border: 3px solid var(--celeste); border-radius: 6px;
  padding: .9rem 1.25rem; cursor: pointer; min-height: 3.2rem; width: 100%;
  transition: transform .15s, filter .2s;
}
.boton:hover { filter: brightness(1.07); }
.boton:active { transform: scale(.985); }
.boton:disabled { opacity: .6; cursor: default; }
.boton.secundario { background: transparent; color: var(--celeste); }
.error { color: var(--alerta); font-weight: 600; margin: 0; }
.nota { font-size: .85rem; color: var(--suave); margin: 0; }
.gracias { display: flex; flex-direction: column; gap: 1rem; padding-top: .5rem; }
.gracias h2 { margin: 0; font-family: var(--f-titulo); font-stretch: 80%; font-weight: 800; font-size: 1.9rem; text-transform: uppercase; color: #fff; }
.gracias p { margin: 0; font-family: var(--f-texto); font-size: 1.25rem; }

/* ---------- Barra del muro ---------- */
.barra-muro {
  position: sticky; top: 0; z-index: 10;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .6rem 1rem;
  margin: 0 calc(var(--pad) * -1) .9rem; padding: .75rem var(--pad);
  background: rgba(20, 38, 74, .72); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linea);
}
.segmento { display: inline-flex; border: 2px solid var(--linea); border-radius: 999px; overflow: hidden; background: rgba(15, 30, 58, .6); }
.segmento button {
  color: var(--texto); background: transparent; border: 0; padding: .55rem 1.2rem; min-height: 2.6rem;
  font-weight: 800; font-size: .88rem; letter-spacing: .04em; text-transform: uppercase; cursor: pointer;
  transition: background .2s;
}
.segmento button[aria-pressed="true"] { background: var(--celeste); color: var(--sobre-celeste); }
.herramientas { display: flex; flex-wrap: wrap; gap: .5rem; }
.herramienta, .ctl {
  color: var(--texto); background: rgba(15, 30, 58, .6); border: 2px solid var(--linea); border-radius: 999px;
  font-weight: 700; font-size: .85rem; padding: .5rem 1rem; min-height: 2.6rem; cursor: pointer;
  transition: background .2s, border-color .2s;
}
.herramienta:hover, .ctl:hover { border-color: var(--celeste); }
.herramienta[aria-pressed="false"] { opacity: .75; }
.herramienta-auto { display: none; }
#pc { display: none; }

/* ---------- Muro: papelitos ---------- */
.papelitos { column-width: 16rem; column-gap: 1rem; padding-top: .4rem; }
.papelito {
  position: relative; break-inside: avoid; margin: 0 0 1rem;
  background: var(--papel); color: var(--tinta); border-radius: 3px;
  padding: 1rem 1.1rem .85rem; display: flex; flex-direction: column; gap: .7rem;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .5) inset, 0 8px 22px rgba(7, 16, 36, .28);
  transform: rotate(var(--giro, 0deg));
  transition: transform .25s cubic-bezier(.2, .8, .2, 1), box-shadow .25s;
  cursor: pointer;
}
.papelito.t1 { background: var(--papel-celeste); }
.papelito.t2 { background: var(--papel-gris); }
.papelito:hover, .papelito:focus-visible { transform: rotate(0deg) translateY(-4px) scale(1.015); box-shadow: 0 1px 0 rgba(255,255,255,.5) inset, 0 16px 34px rgba(7, 16, 36, .38); }
.papelito p {
  margin: 0; font-family: var(--f-texto); font-size: clamp(1.08rem, .98rem + .3vw, 1.35rem); line-height: 1.32;
  white-space: pre-line; overflow-wrap: anywhere;
}
.papelito footer, .foco-card footer {
  font-size: .75rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: #2a6aa6;
  border-top: 1px solid #cdd6e2; padding-top: .55rem; overflow-wrap: anywhere;
}
.papelito.entra { animation: llega .9s cubic-bezier(.2, .8, .2, 1) both; }
@keyframes llega { from { opacity: 0; transform: translateY(-26px) rotate(var(--giro, 0deg)) scale(.95); } }
.papelito.nuevo { outline: 3px solid var(--celeste); outline-offset: 2px; }
.papelito.nuevo::before, .foco-card.es-nuevo::before {
  content: "Nuevo"; position: absolute; top: -.7rem; right: .8rem; z-index: 2;
  background: var(--celeste); color: var(--sobre-celeste); border-radius: 3px;
  font-size: .68rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; padding: .2rem .55rem;
}

/* ---------- Muro: vacío ---------- */
.vacio { flex: 1; display: grid; place-content: center; text-align: center; gap: .6rem; padding: 3rem 1rem; }
.vacio p { margin: 0; font-family: var(--f-texto); font-size: clamp(1.4rem, 1rem + 1.4vw, 2.2rem); max-width: 24ch; text-wrap: balance; color: #fff; }
.vacio span { color: var(--suave); }

/* ---------- Modo foco ---------- */
.foco {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1rem; padding-block: 1rem; min-height: 22rem;
}
.foco-card {
  position: relative; width: min(100%, 56rem);
  background: var(--papel); color: var(--tinta); border-radius: 4px; touch-action: pan-y;
  padding: clamp(1.4rem, 3vw, 3rem) clamp(1.4rem, 3vw, 3rem) clamp(1.8rem, 3.4vw, 3.4rem);
  display: flex; flex-direction: column; gap: clamp(.9rem, 1.6vw, 1.6rem);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .5) inset, 0 18px 50px rgba(7, 16, 36, .4);
  transition: opacity .38s ease, transform .38s ease;
}
.foco-card.sale { opacity: 0; transform: translateY(14px) scale(.985); }
.foco-card p {
  margin: 0; font-family: var(--f-texto); font-weight: 500; font-size: var(--fs, 2rem); line-height: 1.22;
  white-space: pre-line; overflow-wrap: anywhere; text-wrap: balance;
}
.foco-card footer { font-size: clamp(.8rem, .7rem + .4vw, 1.2rem); padding-top: clamp(.6rem, 1vw, 1rem); }
.foco-barra { position: absolute; left: 0; bottom: 0; height: 6px; width: 100%; background: var(--celeste); transform-origin: left; border-radius: 0 0 4px 4px; }
@keyframes cuenta { from { transform: scaleX(1); } to { transform: scaleX(0); } }
.foco-ctrl { display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem; }
.foco-pos { color: var(--suave); font-size: .85rem; letter-spacing: .1em; font-variant-numeric: tabular-nums; }

/* ---------- Pantallas grandes: columna lateral con QR y contenido que se desplaza ---------- */
@media (min-width: 56rem) {
  body.app { height: 100vh; height: 100dvh; overflow: hidden; }
  .shell { flex-direction: row; height: 100%; min-height: 0; }
  .lateral {
    width: var(--lat); flex: none; height: 100%; overflow-y: auto; scrollbar-width: none;
    padding: clamp(1.25rem, 2.4vw, 2.25rem); gap: clamp(.9rem, 2.2vh, 1.6rem);
    border-right: 1px solid var(--linea);
  }
  .lateral::-webkit-scrollbar { display: none; }
  .marca { flex-direction: column; align-items: flex-start; gap: .4rem; }
  .cincuenta { font-size: clamp(4.5rem, 7vw, 6.5rem); }
  .marca h1 { font-size: clamp(1.7rem, 2.3vw, 2.4rem); }
  .pregunta { font-size: clamp(1.2rem, 1.1rem + .6vw, 1.6rem); }
  .nav { position: static; display: flex; flex-direction: column; padding: 0; background: none; border: 0; backdrop-filter: none; gap: .5rem; }
  .nav-btn { border-radius: 8px; text-align: left; padding: .8rem 1rem; }
  .qr-bloque { display: flex; flex-direction: column; gap: .6rem; margin-top: auto; }
  .qr-marco {
    background: #fff; padding: .7rem; border-radius: 6px; border: 4px solid var(--celeste);
    width: min(100%, 15rem, 26vh); aspect-ratio: 1;
  }
  .qr-marco svg { display: block; width: 100%; height: 100%; }
  .qr-texto { margin: 0; font-weight: 800; font-size: 1rem; text-transform: uppercase; letter-spacing: .04em; }
  .qr-url { margin: 0; color: var(--suave); font-size: .85rem; overflow-wrap: anywhere; }
  .pie-lat { display: block; margin: 0; color: var(--suave); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }

  .fondo { left: var(--lat); }
  .contenido {
    --pad: clamp(1.25rem, 2.6vw, 2.5rem);
    height: 100%; overflow-y: auto; padding: 0 var(--pad) var(--pad);
    scrollbar-width: thin; scrollbar-color: rgba(255, 255, 255, .25) transparent;
  }
  .vista-escribir { padding-top: clamp(1.5rem, 6vh, 4rem); }
  .herramienta-auto { display: inline-block; }
  #pc { display: inline-block; }
  .papelitos { column-width: 17rem; column-gap: 1.25rem; }
  .papelito { margin-bottom: 1.25rem; }
}

/* Notebooks y pantallas bajas: columna lateral más compacta para que el QR siempre se vea completo */
@media (min-width: 56rem) and (max-height: 860px) {
  .lateral { gap: .85rem; padding-block: 1.1rem; }
  .cincuenta { font-size: clamp(3.6rem, 6vw, 5rem); }
  .pregunta { font-size: 1.15rem; }
  .qr-marco { width: min(100%, 13rem, 24vh); padding: .55rem; }
  .pie-lat { display: none; }
}
@media (min-width: 56rem) and (max-height: 680px) {
  .marca { flex-direction: row; align-items: flex-end; gap: .75rem; }
  .cincuenta { font-size: 3.4rem; }
  .marca h1 { font-size: 1.15rem; }
  .pregunta { font-size: 1rem; }
  .nav { flex-direction: row; }
  .nav-btn { flex: 1; text-align: center; padding: .55rem .5rem; font-size: .75rem; min-height: 2.5rem; }
  .qr-marco { width: min(100%, 9.5rem, 26vh); border-width: 3px; }
  .qr-texto { font-size: .8rem; }
  .qr-url { display: none; }
}

@media (min-width: 90rem) {
  .papelitos { column-width: 20rem; }
}

@media (prefers-reduced-motion: reduce) {
  .papelito.entra { animation: none; }
  .papelito, .foco-card, .nav-btn, .boton { transition: none; }
  .foco-barra { display: none !important; }
  .avion { animation: none; left: 8%; }
  .avion:nth-child(2) { left: 52%; top: 62%; }
  .avion:nth-child(3) { left: 78%; top: 18%; }
  .cuenta.late { animation: none; }
}

/* ================= Panel de moderación ================= */
body.admin {
  --bg: #f4f6f9; --sup: #ffffff; --tx: #131a24; --tx2: #4a5565; --ln: #d9dee6;
  --ac: #2a6aa6; --on: #ffffff; --ko: #b4372f; --ok: #2e7d4f; --aviso: #e4effb;
  margin: 0; background: var(--bg); color: var(--tx); font-family: var(--f-ui); line-height: 1.5;
}
@media (prefers-color-scheme: dark) {
  body.admin {
    --bg: #0e141d; --sup: #17202d; --tx: #eef2f7; --tx2: #a9b4c4; --ln: #2a3748;
    --ac: #74acdf; --on: #0b1626; --ko: #ff8a80; --ok: #7bd9a0; --aviso: #1d3556;
    color-scheme: dark;
  }
}
.admin * { box-sizing: border-box; }
.admin-wrap { max-width: 64rem; margin: 0 auto; padding: 1.25rem 1rem 4rem; display: flex; flex-direction: column; gap: 1rem; }
.admin h1 { margin: 0; font-family: var(--f-titulo); font-stretch: 80%; font-weight: 800; text-transform: uppercase; font-size: 1.6rem; display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.admin-barra { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: center; justify-content: space-between; }
.acciones-top { display: flex; flex-wrap: wrap; gap: .5rem; }
.vivo { font-family: var(--f-ui); font-stretch: 100%; font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ok); display: inline-flex; align-items: center; gap: .4rem; }
.vivo::before { content: ""; width: .6rem; height: .6rem; border-radius: 50%; background: currentColor; animation: pulsa 1.8s ease-in-out infinite; }
.vivo.caido { color: var(--ko); }
.vivo.caido::before { animation: none; }
@keyframes pulsa { 50% { opacity: .3; transform: scale(.8); } }
.pestanas { display: flex; flex-wrap: wrap; gap: .5rem; }
.pestana {
  font: inherit; font-weight: 700; font-size: .9rem; color: var(--tx); background: var(--sup);
  border: 2px solid var(--ln); border-radius: 999px; padding: .45rem 1rem; cursor: pointer; min-height: 2.6rem;
}
.pestana[aria-current="page"] { border-color: var(--ac); background: var(--ac); color: var(--on); }
.chico {
  font: inherit; font-weight: 700; font-size: .85rem; border-radius: 6px; padding: .5rem .9rem; cursor: pointer; min-height: 2.5rem;
  border: 2px solid var(--ln); background: var(--sup); color: var(--tx); text-decoration: none; display: inline-flex; align-items: center;
}
.chico.ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.chico.no { border-color: var(--ko); color: var(--ko); }
.chico[aria-pressed="true"] { border-color: var(--ac); }
.aviso {
  background: var(--aviso); border: 2px solid var(--ac); border-radius: 6px; padding: .8rem 1rem; font-weight: 700;
  animation: baja .35s ease both;
}
@keyframes baja { from { opacity: 0; transform: translateY(-8px); } }
.lista-admin { display: flex; flex-direction: column; gap: .75rem; }
.item {
  background: var(--sup); border: 1px solid var(--ln); border-radius: 6px; padding: 1rem;
  display: grid; grid-template-columns: 1fr auto; gap: .6rem 1rem; align-items: start;
}
.item.nuevo { border-color: var(--ac); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ac) 35%, transparent); animation: baja .4s ease both; }
.item.sale { opacity: 0; transform: translateX(24px); transition: opacity .25s, transform .25s; }
.item p { margin: 0; font-family: var(--f-texto); font-size: 1.15rem; white-space: pre-line; overflow-wrap: anywhere; }
.item .meta { grid-column: 1 / -1; font-size: .78rem; color: var(--tx2); }
.item .botones { display: flex; flex-wrap: wrap; gap: .4rem; justify-content: flex-end; }
.vacio-admin { color: var(--tx2); padding: 2rem 0; }
.login { max-width: 22rem; margin: 16vh auto 0; padding: 0 1rem; display: flex; flex-direction: column; gap: 1rem; }
.login label { font-weight: 700; }
.login input { width: 100%; font: inherit; padding: .8rem .9rem; border: 2px solid var(--ln); border-radius: 6px; background: var(--sup); color: var(--tx); }
.login .boton { width: 100%; background: var(--ac); border-color: var(--ac); color: var(--on); }
.login .error { color: var(--ko); }
@media (max-width: 36rem) { .item { grid-template-columns: 1fr; } .item .botones { justify-content: flex-start; } }
@media (prefers-reduced-motion: reduce) { .vivo::before, .aviso, .item.nuevo { animation: none; } .item.sale { transition: none; } }