:root {
  --fondo: #f4f1ec;
  --papel: #fffdf9;
  --tinta: #1b1a17;
  --suave: #6b665e;
  --linea: #e2ddd3;
  --rojo: #b4232a;
  --rojo-osc: #8f1b21;
  --ok: #1f7a4d;
  --ok-fondo: #e6f4ec;
  --alerta: #9a6400;
  --alerta-fondo: #fff4dc;
  --sombra: 0 1px 2px rgba(0,0,0,.05), 0 8px 24px rgba(30,25,15,.07);
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fondo: #151412;
    --papel: #1f1d1a;
    --tinta: #eeeae2;
    --suave: #a49d91;
    --linea: #34312c;
    --rojo: #e0474e;
    --rojo-osc: #c43a41;
    --ok: #5cc98f;
    --ok-fondo: #18301f;
    --alerta: #f0b54a;
    --alerta-fondo: #33280f;
    --sombra: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.3);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--fondo); color: var(--tinta); font: 15px/1.5 var(--sans); }
button, input, select, textarea { font: inherit; color: inherit; }
.oculto { display: none !important; }

.barra {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 24px; background: var(--papel); border-bottom: 1px solid var(--linea);
}
.marca { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.logo { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 7px; background: var(--rojo); color: #fff; font-family: var(--serif); font-size: 20px; }
.estado { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; font-size: 12.5px; }
.pill { padding: 3px 10px; border-radius: 99px; background: var(--ok-fondo); color: var(--ok); font-weight: 500; }
.pill.mal { background: var(--alerta-fondo); color: var(--alerta); }

.layout { display: grid; grid-template-columns: minmax(320px, 400px) 1fr; gap: 24px; padding: 24px; max-width: 1440px; margin: 0 auto; align-items: start; }

.panel {
  position: sticky; top: 78px; max-height: calc(100vh - 100px); overflow-y: auto;
  background: var(--papel); border: 1px solid var(--linea); border-radius: 14px; padding: 20px; box-shadow: var(--sombra);
}
.panel h2 { margin: 0 0 14px; font: 600 22px/1.2 var(--serif); }
.campo { display: block; border: 0; padding: 0; margin: 0 0 14px; min-width: 0; }
.campo > span, .campo > legend { display: block; font-size: 12.5px; font-weight: 600; color: var(--suave); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .04em; }
.campo em { text-transform: none; font-weight: 400; font-style: normal; letter-spacing: 0; }
.campo input, .campo select, .campo textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--linea); border-radius: 9px; background: var(--fondo); resize: vertical;
}
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: 2px solid var(--rojo); outline-offset: -1px; border-color: transparent; }
.fila { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fila.tres { grid-template-columns: 1.2fr 1fr 1fr; }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { padding: 7px 13px; border: 1px solid var(--linea); border-radius: 99px; background: var(--fondo); cursor: pointer; font-weight: 500; font-size: 14px; }
.chip.activo { background: var(--tinta); color: var(--papel); border-color: var(--tinta); }

.estilos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.estilo { display: flex; flex-direction: column; align-items: center; gap: 5px; padding: 8px 4px; border: 1px solid var(--linea); border-radius: 10px; background: var(--fondo); cursor: pointer; font-size: 12.5px; font-weight: 500; }
.estilo i { width: 100%; height: 30px; border-radius: 6px; background: linear-gradient(135deg, var(--c1), var(--c2)); }
.estilo.activo { border-color: var(--rojo); box-shadow: 0 0 0 1px var(--rojo); }
#estiloPersonalizado { margin-top: 8px; }

.boton { width: 100%; padding: 12px 16px; border: 0; border-radius: 10px; background: var(--rojo); color: #fff; font-weight: 600; font-size: 15px; cursor: pointer; transition: background .15s; }
.boton:hover { background: var(--rojo-osc); }
.boton:disabled { opacity: .55; cursor: progress; }
.boton-sec { padding: 7px 12px; border: 1px solid var(--linea); border-radius: 8px; background: var(--papel); cursor: pointer; font-size: 13.5px; font-weight: 500; }
.boton-sec:hover { border-color: var(--suave); }
.aviso-mini { margin: 10px 0 0; font-size: 12.5px; color: var(--suave); }

.lienzo { min-width: 0; }
.vacio, .progreso, .error {
  background: var(--papel); border: 1px solid var(--linea); border-radius: 14px; padding: 56px 32px; text-align: center; box-shadow: var(--sombra);
}
.vacio-icono { font-size: 44px; }
.vacio h3, .progreso h3 { font: 600 26px/1.2 var(--serif); margin: 10px 0 8px; }
.vacio p, .progreso p { color: var(--suave); max-width: 460px; margin: 0 auto; }
.pasos-info { display: inline-grid; grid-template-columns: 1fr 1fr; gap: 8px 28px; text-align: left; margin: 26px 0 0; padding-left: 20px; color: var(--suave); font-size: 14px; }
.spinner { width: 40px; height: 40px; margin: 0 auto; border: 3px solid var(--linea); border-top-color: var(--rojo); border-radius: 50%; animation: gira 0.9s linear infinite; }
@keyframes gira { to { transform: rotate(360deg); } }
.crono { margin-top: 14px; font-variant-numeric: tabular-nums; color: var(--suave); font-size: 13px; }
.error { text-align: left; padding: 22px 24px; border-color: var(--rojo); color: var(--rojo); font-weight: 500; }

.acciones { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.verificacion { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; font-size: 13px; }
.verificacion .pill { padding: 5px 12px; }

.articulo { background: var(--papel); border: 1px solid var(--linea); border-radius: 14px; padding: 44px clamp(20px, 6vw, 72px) 52px; box-shadow: var(--sombra); }
.articulo > * { max-width: 720px; margin-left: auto; margin-right: auto; }
.categoria { color: var(--rojo); font-weight: 700; font-size: 12.5px; text-transform: uppercase; letter-spacing: .08em; }
.articulo h1 { font: 700 clamp(30px, 4vw, 44px)/1.08 var(--serif); letter-spacing: -.015em; margin: 8px auto 12px; }
.articulo .subtitulo { font: 400 21px/1.4 var(--serif); color: var(--suave); margin-bottom: 18px; }
.meta { font-size: 13px; color: var(--suave); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); padding: 9px 0; margin-bottom: 24px; display: flex; gap: 14px; flex-wrap: wrap; }
.articulo h2 { font: 600 25px/1.2 var(--serif); margin: 34px auto 10px; }
.articulo p.parrafo { font: 400 19px/1.65 var(--serif); margin-top: 0; margin-bottom: 18px; }
.parrafo sup a { color: var(--rojo); text-decoration: none; font-family: var(--sans); font-size: 11px; font-weight: 600; margin-left: 2px; }
.parrafo.sin-respaldo { background: var(--alerta-fondo); box-shadow: -10px 0 0 var(--alerta-fondo), 10px 0 0 var(--alerta-fondo); border-radius: 2px; }
.parrafo.sin-respaldo::after { content: " ⚠ Sin fuente comprobada"; font: 600 11px var(--sans); color: var(--alerta); }
[contenteditable]:hover { outline: 1px dashed var(--linea); outline-offset: 4px; }
[contenteditable]:focus { outline: 2px solid var(--rojo); outline-offset: 4px; }

.figura { margin: 24px auto 28px; max-width: 900px !important; }
.figura.principal { margin-top: 0; }
.marco-img { position: relative; border-radius: 10px; overflow: hidden; background: var(--fondo); aspect-ratio: 3 / 2; display: grid; place-items: center; }
.marco-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.marco-img .cargando { color: var(--suave); font-size: 13.5px; display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 16px; text-align: center; }
.marco-img .cargando .spinner { width: 28px; height: 28px; }
.etiqueta-ia { position: absolute; left: 10px; bottom: 10px; background: rgba(0,0,0,.62); color: #fff; font-size: 11px; font-weight: 600; padding: 3px 8px; border-radius: 5px; }
.herramientas-img { position: absolute; top: 10px; right: 10px; display: flex; gap: 6px; opacity: 0; transition: opacity .15s; }
.marco-img:hover .herramientas-img, .marco-img:focus-within .herramientas-img { opacity: 1; }
.herramientas-img button { border: 0; background: rgba(255,255,255,.92); color: #111; border-radius: 7px; padding: 6px 10px; font-size: 12.5px; font-weight: 600; cursor: pointer; }
figcaption { font-size: 13.5px; color: var(--suave); margin-top: 8px; }

.notas { margin-top: 30px; padding: 16px 18px; border-radius: 10px; background: var(--fondo); font-size: 14px; }
.notas strong { display: block; margin-bottom: 4px; }
.fuentes { margin-top: 30px; }
.fuentes h3 { font: 600 19px var(--serif); margin: 0 0 10px; }
.fuentes ol { padding-left: 22px; margin: 0; font-size: 14px; }
.fuentes li { margin-bottom: 8px; }
.fuentes a { color: var(--tinta); word-break: break-word; }
.marca-f { font-size: 11.5px; font-weight: 600; padding: 1px 7px; border-radius: 99px; margin-left: 6px; white-space: nowrap; }
.marca-f.ok { background: var(--ok-fondo); color: var(--ok); }
.marca-f.no { background: var(--alerta-fondo); color: var(--alerta); }

.dialogo { border: 1px solid var(--linea); border-radius: 14px; background: var(--papel); color: var(--tinta); padding: 20px; width: min(520px, calc(100vw - 32px)); box-shadow: var(--sombra); }
.dialogo::backdrop { background: rgba(0,0,0,.4); }
.dialogo h3 { margin: 0 0 12px; font: 600 21px var(--serif); }
.dialogo-cab { display: flex; justify-content: space-between; align-items: center; }
.cerrar { border: 0; background: none; font-size: 18px; cursor: pointer; color: var(--suave); }
#formClave input { width: 100%; padding: 10px; margin-bottom: 12px; border: 1px solid var(--linea); border-radius: 9px; background: var(--fondo); }
.lista-historial { list-style: none; margin: 0; padding: 0; max-height: 60vh; overflow-y: auto; }
.lista-historial li { display: flex; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--linea); }
.lista-historial .info { flex: 1; min-width: 0; cursor: pointer; }
.lista-historial .info b { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lista-historial .info small { color: var(--suave); }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; background: var(--tinta); color: var(--papel); padding: 10px 16px; border-radius: 9px; font-size: 14px; transition: all .2s; z-index: 50; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding: 16px; gap: 16px; }
  .panel { position: static; max-height: none; }
  .barra { padding: 10px 16px; }
  .estado { display: none; }
  .marca { margin-right: auto; }
  .articulo { padding: 28px 18px 36px; }
  .articulo p.parrafo { font-size: 18px; }
  .pasos-info { grid-template-columns: 1fr; }
  .herramientas-img { opacity: 1; }
}