/* =============================================================================
   Editor de fotolibros · capa de interfaz sobre Livriz Folio
   -----------------------------------------------------------------------------
   Los tokens (color, tipografía, radios, sombras) vienen de marca/colors_and_type.css,
   copia del sistema publicado en https://marca.app.livriz.com. Acá sólo hay
   componentes del editor. Regla de la marca que manda en todo el layout:
   "calmo por defecto: el contenido del usuario siempre es lo más fuerte".

   Mobile-first: las reglas base son las del celular (riel abajo, paneles como
   hojas que suben, una página por ranura) y @media (min-width: 861px) arma el
   escritorio (riel a la izquierda, panel fijo, pliegos enteros, tira de páginas).
   ============================================================================= */

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; overflow: hidden; overscroll-behavior: none; }
body { font: var(--type-body-m-weight) var(--type-body-m-size)/var(--type-body-m-line) var(--font-sans); letter-spacing: var(--type-body-m-tracking); color: var(--fg-1); background: var(--bg-1); }
button, input, select, textarea { font: inherit; color: inherit; letter-spacing: inherit; }
[hidden] { display: none !important; }

.ms {
    font-family: 'Material Symbols Rounded';
    font-weight: 400; font-style: normal; font-size: 20px; line-height: 1;
    display: inline-block; white-space: nowrap; direction: ltr;
    font-feature-settings: 'liga'; -webkit-font-smoothing: antialiased; user-select: none;
    flex-shrink: 0;
}

:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ---- Botones (Material 3 · píldora) -------------------------------------- */
.btn {
    font-weight: 500; font-size: 14px; letter-spacing: .1px; line-height: 20px;
    height: 40px; padding: 0 20px; border-radius: var(--radius-full);
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    border: none; cursor: pointer; white-space: nowrap; background: transparent;
    transition: background var(--motion-duration-short) var(--motion-easing-standard), box-shadow var(--motion-duration-short);
}
.btn .ms { font-size: 18px; }
.btn-relleno { background: var(--brand-accent); color: var(--brand-accent-on); }
.btn-relleno:hover { background: var(--brand-accent-hover); box-shadow: var(--elev-1); }
.btn-tonal { background: var(--brand-accent-soft); color: var(--brand-accent); }
.btn-tonal:hover { background: var(--blue-100); }
.btn-contorno { color: var(--brand-accent); border: 1px solid var(--border-2); }
.btn-contorno:hover { background: color-mix(in srgb, var(--brand-accent) 6%, transparent); }
.btn-texto { color: var(--brand-accent); padding: 0 12px; }
.btn-texto:hover { background: color-mix(in srgb, var(--brand-accent) 8%, transparent); }
.btn-peligro { color: var(--status-danger); }
.btn-peligro:hover { background: var(--status-danger-soft); }
.btn:disabled { background: var(--md-sys-color-surface-container); color: var(--fg-disabled); cursor: not-allowed; box-shadow: none; }
.btn-chico { height: 32px; padding: 0 14px; font-size: 13px; }
.btn-ancho { width: 100%; }

.btn-icono {
    width: 40px; height: 40px; border-radius: 50%; border: none; background: transparent; color: var(--fg-2);
    display: inline-flex; align-items: center; justify-content: center; cursor: pointer; flex-shrink: 0;
}
.btn-icono .ms { font-size: 22px; }
.btn-icono:hover { background: color-mix(in srgb, var(--fg-1) 8%, transparent); color: var(--fg-1); }
.btn-icono:disabled { color: var(--fg-disabled); background: transparent; cursor: default; }
.btn-icono.activo { background: var(--brand-accent-soft); color: var(--brand-accent); }

/* ---- Chips ------------------------------------------------------------------ */
.chip {
    height: 32px; padding: 0 14px; border-radius: var(--radius-full); border: 1px solid var(--border-2);
    background: var(--bg-1); color: var(--fg-2); font-weight: 500; font-size: 13px;
    display: inline-flex; align-items: center; gap: 6px; cursor: pointer; white-space: nowrap;
}
.chip .ms { font-size: 18px; }
.chip:hover { background: var(--bg-2); }
.chip.activo { background: var(--brand-accent-soft); border-color: transparent; color: var(--brand-accent); }

.etiqueta-overline { font: var(--type-overline-weight) var(--type-overline-size)/var(--type-overline-line) var(--font-sans); letter-spacing: var(--type-overline-tracking); text-transform: uppercase; color: var(--fg-3); }

/* ---- Estructura (celular) ------------------------------------------------ */
/* Barra de arriba · mesa · riel abajo. El panel es una hoja que sube sobre la mesa. */
.app { display: grid; grid-template-rows: 56px minmax(0, 1fr); height: 100vh; height: 100dvh; }

.barra-superior {
    display: flex; align-items: center; gap: 2px; padding: 0 4px 0 10px; position: relative; z-index: 60;
    border-bottom: 1px solid var(--border-1); background: var(--md-sys-color-surface-container-lowest); min-width: 0;
}
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg-1); flex-shrink: 0; }
.marca img { width: 30px; height: 30px; }
.marca b { font-weight: 600; font-size: 16px; display: none; }
.barra-superior .divisor { width: 1px; height: 28px; background: var(--border-1); margin: 0 8px; flex-shrink: 0; display: none; }
.titulo-libro {
    font-weight: 600; font-size: 16px; border: 1px solid transparent; border-radius: var(--radius-sm);
    padding: 6px 8px; min-width: 0; width: 100%; max-width: 320px; background: transparent; text-overflow: ellipsis; flex: 1 1 auto;
}
.titulo-libro:hover { border-color: var(--border-1); }
.titulo-libro:focus { border-color: var(--brand-accent); outline: none; background: var(--bg-1); }
.barra-superior .relleno { flex: 0 1 0; }
.dato-libro { color: var(--fg-3); font-size: 13px; white-space: nowrap; display: none; }

/* Acciones del libro: en el celular, un menú que se abre con ⋮ */
.btn-menu { display: inline-flex; }
.acciones-libro {
    display: none; position: absolute; right: 8px; top: calc(100% + 6px); min-width: 240px; z-index: 80;
    flex-direction: column; align-items: stretch; gap: 2px; padding: 8px; border-radius: var(--radius-md);
    background: var(--bg-1); box-shadow: var(--elev-5);
}
.acciones-libro.abierto { display: flex; }
.acciones-libro .btn { justify-content: flex-start; height: 44px; padding: 0 14px; border: none; }
.acciones-libro .btn-relleno { justify-content: center; margin-top: 4px; }
.acciones-libro .btn-icono { width: 100%; border-radius: var(--radius-full); justify-content: flex-start; padding: 0 14px; gap: 12px; height: 44px; }
.acciones-libro .btn-icono::after { content: attr(aria-label); font-size: 14px; font-weight: 500; color: var(--fg-1); text-align: left; }
.acciones-libro .btn-icono[data-etiqueta]::after { content: attr(data-etiqueta); }

/* Selector de etapa: sólo existe en el prototipo para comparar */
.selector-etapa { display: none; align-items: center; gap: 2px; padding: 3px; border: 1px dashed var(--border-2); border-radius: var(--radius-full); flex-shrink: 0; }
.selector-etapa span { font-size: 11px; color: var(--fg-3); padding: 0 6px 0 8px; font-weight: 500; }
.selector-etapa a { font-size: 12px; font-weight: 600; color: var(--fg-2); text-decoration: none; height: 26px; min-width: 26px; padding: 0 8px; border-radius: var(--radius-full); display: inline-flex; align-items: center; justify-content: center; }
.selector-etapa a:hover { background: var(--bg-3); }
.selector-etapa a.activo { background: var(--fg-1); color: var(--bg-1); }

.cuerpo { display: grid; grid-template-rows: minmax(0, 1fr) auto; grid-template-areas: "mesa" "riel"; min-height: 0; }

/* Riel: barra de navegación de abajo (MD3 navigation bar), con scroll si no entra */
.riel {
    grid-area: riel; display: flex; flex-direction: row; align-items: stretch; gap: 0; z-index: 50;
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); overflow-x: auto; overflow-y: hidden; scrollbar-width: none;
    border-top: 1px solid var(--border-1); background: var(--md-sys-color-surface-container-lowest);
}
.riel::-webkit-scrollbar { display: none; }
.riel button {
    flex: 1 0 64px; min-width: 64px; border: none; background: none; cursor: pointer; padding: 2px 0 4px;
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    font-size: 11px; font-weight: 500; color: var(--fg-2); letter-spacing: .3px; -webkit-tap-highlight-color: transparent;
}
.riel .indicador { width: 56px; height: 32px; border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; transition: background var(--motion-duration-short); }
.riel .indicador .ms { font-size: 22px; }
.riel button.activo { color: var(--fg-1); font-weight: 600; }
.hoja-abierta .riel button.activo .indicador { background: var(--brand-accent-soft); color: var(--brand-accent); }
.riel .novedad { display: none; font-size: 9px; font-weight: 600; letter-spacing: .4px; color: var(--brand-accent); text-transform: uppercase; margin-top: -2px; }

/* Panel: hoja que sube desde abajo */
.panel {
    position: fixed; left: 0; right: 0; bottom: calc(64px + env(safe-area-inset-bottom)); z-index: 45;
    height: min(58dvh, 540px); background: var(--bg-1); display: flex; flex-direction: column; min-height: 0;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0; box-shadow: 0 -8px 32px rgba(0,0,0,.16);
    animation: subir var(--motion-duration-medium) var(--motion-easing-decelerate);
}
.panel.cerrado-movil { display: none; }
@keyframes subir { from { transform: translateY(24px); opacity: 0; } to { transform: none; opacity: 1; } }
.panel-manija { display: flex; align-items: center; justify-content: center; position: relative; height: 22px; flex-shrink: 0; }
.panel-manija .agarradera { width: 32px; height: 4px; border-radius: 2px; background: var(--neutral-300); margin-top: 8px; }
.panel-manija .btn-icono { position: absolute; right: 8px; top: 6px; width: 36px; height: 36px; }
.panel-cabecera { padding: 4px 20px 8px; }
.panel-cabecera h2 { font: var(--type-title-l-weight) 20px/28px var(--font-sans); margin: 0; }
.panel-cabecera p { font-size: 13px; line-height: 19px; color: var(--fg-3); margin: 4px 0 0; letter-spacing: .2px; }
.panel-cuerpo { padding: 8px 16px 20px; overflow-y: auto; flex: 1; display: flex; flex-direction: column; gap: 16px; overscroll-behavior: contain; }
.panel-pie { padding: 12px 16px 14px; border-top: 1px solid var(--border-1); display: flex; flex-direction: column; gap: 8px; }
.grupo-titulo { font-size: 12px; font-weight: 600; color: var(--fg-2); letter-spacing: .3px; margin-bottom: 8px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.fila-botones { display: flex; gap: 8px; flex-wrap: wrap; }
.fila-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.nota { font-size: 12px; line-height: 17px; color: var(--fg-3); letter-spacing: .2px; margin: 0; }
.nota a { color: var(--brand-accent); }

/* Mesa de trabajo */
.mesa { grid-area: mesa; position: relative; display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--grey-93); }
.mesa-escena { position: relative; flex: 1; display: flex; min-height: 0; }
.barra-contextual {
    height: 52px; flex-shrink: 0; display: flex; align-items: center; gap: 4px; padding: 0 10px;
    background: var(--md-sys-color-surface-container-lowest); border-bottom: 1px solid var(--border-1);
    overflow-x: auto; overflow-y: hidden; scrollbar-width: none;
}
.barra-contextual::-webkit-scrollbar { display: none; }
.barra-contextual > * { flex-shrink: 0; }
.barra-contextual .rotulo { font-size: 13px; font-weight: 600; color: var(--fg-1); margin-right: 4px; white-space: nowrap; display: flex; align-items: center; gap: 6px; }
.barra-contextual .rotulo .ms { color: var(--fg-3); }
.barra-contextual .sep { width: 1px; height: 24px; background: var(--border-1); margin: 0 4px; flex-shrink: 0; }
.barra-contextual .pista { font-size: 13px; color: var(--fg-3); white-space: nowrap; display: none; }
.barra-contextual label.control { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--fg-2); white-space: nowrap; }
.barra-contextual input[type=range] { width: 110px; accent-color: var(--brand-accent); }
.barra-contextual select { height: 32px; border: 1px solid var(--border-2); border-radius: var(--radius-sm); padding: 0 8px; background: var(--bg-1); font-size: 13px; }

/* El navegador no hace zoom de la página con dos dedos sobre el libro: el pellizco es del encuadre */
.escenario { flex: 1; position: relative; overflow: auto; display: flex; padding: 24px 48px 72px; touch-action: pan-x pan-y; overscroll-behavior: contain; }
.escenario > .pliego { margin: auto; }
.flecha-pliego { position: absolute; top: 50%; transform: translateY(-50%); z-index: 5; background: var(--bg-1) !important; box-shadow: var(--elev-2); }
.flecha-pliego.izq { left: 8px; }
.flecha-pliego.der { right: 8px; }
.control-zoom { position: absolute; right: 12px; bottom: 12px; z-index: 5; display: flex; align-items: center; gap: 2px; padding: 4px; background: var(--bg-1); border-radius: var(--radius-full); box-shadow: var(--elev-2); }
.control-zoom .btn-icono { width: 36px; height: 36px; }
.control-zoom .btn-icono .ms { font-size: 20px; }
.control-zoom output { font-size: 12px; font-weight: 500; min-width: 44px; text-align: center; color: var(--fg-2); }
.control-zoom .sep-zoom { width: 1px; height: 20px; background: var(--border-1); margin: 0 2px; }
/* En el celular se acerca con los dedos: del control queda el cambio de vista */
.control-zoom > :not(:first-child) { display: none; }
.leyenda-pliego { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); font-size: 12px; color: var(--fg-3); background: color-mix(in srgb, var(--bg-1) 80%, transparent); padding: 4px 12px; border-radius: var(--radius-full); white-space: nowrap; z-index: 4; display: none; }

/* Vista de todo el libro: ranuras una debajo de la otra */
.vista-libro .escenario { display: block; padding: 0; }
.vista-libro .flecha-pliego { display: none; }
.libro { width: max-content; min-width: 100%; display: flex; flex-direction: column; align-items: center; gap: 22px; padding: 16px 16px 96px; }
.ranura { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.ranura-rotulo { font-size: 12px; font-weight: 500; color: var(--fg-3); padding-left: 2px; }
.ranura.actual .ranura-rotulo { color: var(--fg-1); font-weight: 600; }
.ranura-hoja { background: #fff; box-shadow: var(--elev-2); flex-shrink: 0; }
.ranura-hoja:empty { background: linear-gradient(90deg, #fff, #f6f6f6 50%, #fff); }

/* ---- Pliego y páginas ------------------------------------------------- */
.pliego { display: flex; position: relative; box-shadow: var(--elev-4); background: #fff; }
.pliego::after { /* pliegue del lomo */
    content: ''; position: absolute; top: 0; bottom: 0; left: 50%; width: 40px; transform: translateX(-50%); pointer-events: none; z-index: 3;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,.07) 45%, rgba(0,0,0,.12) 50%, rgba(0,0,0,.07) 55%, transparent);
}
.pliego.es-tapa::after, .pliego.una-pagina::after { display: none; }
.pagina { position: relative; overflow: hidden; background: #fff; flex-shrink: 0; }
.pagina > .area { position: absolute; inset: 0; container-type: inline-size; }
.pagina.seleccionada::before { content: ''; position: absolute; inset: 0; box-shadow: inset 0 0 0 2px var(--brand-accent); z-index: 6; pointer-events: none; }
.pagina-vacia-aviso { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; text-align: center; color: color-mix(in srgb, currentColor 40%, transparent); font-size: 2.4cqw; pointer-events: none; padding: 10%; }

.marco { position: absolute; overflow: hidden; }
.marco img.foto { position: absolute; max-width: none; user-select: none; -webkit-user-drag: none; pointer-events: none; }
.marco.vacio {
    background: color-mix(in srgb, #8a8a8a 10%, transparent);
    border: 1.5px dashed color-mix(in srgb, #8a8a8a 55%, transparent);
    display: flex; align-items: center; justify-content: center; flex-direction: column; gap: .6cqw;
    color: color-mix(in srgb, #6b6b6b 85%, transparent); font-size: 1.8cqw; font-weight: 500; text-align: center;
}
.marco.vacio .ms { font-size: 4.2cqw; }
.interactiva .marco { cursor: pointer; }
/* El contorno va en una capa encima de la foto: si fuera del marco, la foto lo taparía */
.interactiva .marco::after { content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 1; transition: box-shadow var(--motion-duration-short); }
.interactiva .marco:hover::after { box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--brand-accent) 60%, transparent); }
.interactiva .marco.seleccionado { cursor: grab; z-index: 1; touch-action: none; }
.interactiva .marco.seleccionado::after { box-shadow: inset 0 0 0 3px var(--brand-accent), inset 0 0 0 4px rgba(255,255,255,.7); }
.interactiva .marco.seleccionado:active { cursor: grabbing; }
.interactiva .marco.destello::after { animation: destello 900ms var(--motion-easing-standard); }
@keyframes destello { 0%, 40% { box-shadow: inset 0 0 0 4px var(--brand-accent); background: color-mix(in srgb, var(--brand-accent) 25%, transparent); } 100% { box-shadow: none; background: transparent; } }
.interactiva .marco.destino::after { box-shadow: inset 0 0 0 4px var(--brand-accent); background: color-mix(in srgb, var(--brand-accent) 22%, transparent); }
.marco .aviso-calidad { position: absolute; left: 6px; top: 6px; background: var(--status-warning); color: #fff; border-radius: var(--radius-full); width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; z-index: 2; }
.marco .aviso-calidad.grave { background: var(--status-danger); }
.marco .aviso-calidad .ms { font-size: 16px; }

/* ---- Tira de páginas (sólo escritorio: en el celular se recorre el libro con scroll) */
.tira { border-top: 1px solid var(--border-1); background: var(--md-sys-color-surface-container-lowest); display: none; align-items: center; gap: 12px; padding: 10px 16px 12px; min-width: 0; }
.tira-info { display: flex; flex-direction: column; gap: 2px; min-width: 92px; flex-shrink: 0; }
.tira-info b { font-size: 14px; font-weight: 600; }
.tira-info span { font-size: 12px; color: var(--fg-3); }
.tira-lista { display: flex; gap: 12px; overflow-x: auto; padding: 4px 4px 6px; flex: 1; align-items: flex-end; }
.miniatura { flex-shrink: 0; display: flex; flex-direction: column; align-items: center; gap: 4px; cursor: pointer; position: relative; border: none; background: none; padding: 0; }
.miniatura .pliego { box-shadow: var(--elev-1); border-radius: 2px; pointer-events: none; }
.miniatura .pliego::after { width: 6px; }
.miniatura .marco.vacio { border-width: 1px; }
.miniatura .marco.vacio > * { display: none; }
.miniatura .pagina-vacia-aviso { display: none; }
.miniatura .marco-sel { position: absolute; inset: -4px -4px 20px; border-radius: 6px; border: 2px solid transparent; pointer-events: none; }
.miniatura.activa .marco-sel { border-color: var(--brand-accent); }
.miniatura:hover .marco-sel { border-color: var(--border-2); }
.miniatura.activa:hover .marco-sel { border-color: var(--brand-accent); }
.miniatura small { font-size: 11px; color: var(--fg-3); font-weight: 500; }
.miniatura.activa small { color: var(--brand-accent); font-weight: 600; }
.miniatura .acciones-mini { position: absolute; top: -2px; right: -2px; display: none; gap: 2px; z-index: 3; }
.miniatura:hover .acciones-mini { display: flex; }
.acciones-mini span { width: 24px; height: 24px; border-radius: 50%; background: var(--bg-1); box-shadow: var(--elev-2); display: flex; align-items: center; justify-content: center; color: var(--fg-2); }
.acciones-mini span:hover { color: var(--fg-1); background: var(--bg-3); }
.acciones-mini .ms { font-size: 15px; }
.miniatura.arrastrando { opacity: .4; }
.miniatura.soltar-antes::before { content: ''; position: absolute; left: -8px; top: 0; bottom: 18px; width: 3px; border-radius: 2px; background: var(--brand-accent); }
.miniatura .alerta-mini { position: absolute; top: -6px; left: -6px; width: 20px; height: 20px; border-radius: 50%; background: var(--status-warning); color: #fff; display: flex; align-items: center; justify-content: center; z-index: 3; }
.miniatura .alerta-mini .ms { font-size: 14px; }
.agregar-pliego { flex-shrink: 0; width: 72px; height: 56px; border: 1.5px dashed var(--border-2); border-radius: var(--radius-sm); background: none; color: var(--fg-2); cursor: pointer; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; font-size: 11px; font-weight: 500; margin-bottom: 20px; }
.agregar-pliego:hover { border-color: var(--brand-accent); color: var(--brand-accent); background: var(--brand-accent-soft); }

/* ---- Bandeja de fotos ------------------------------------------------- */
.zona-subida {
    border: 1.5px dashed var(--border-2); border-radius: var(--radius-md); padding: 24px 16px; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--fg-2); background: var(--bg-2);
}
.zona-subida > .ms { font-size: 36px; color: var(--brand-accent); }
.zona-subida b { font-size: 14px; font-weight: 600; color: var(--fg-1); }
.zona-subida.sobre { border-color: var(--brand-accent); background: var(--brand-accent-soft); }
.grilla-fotos { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 6px; }
.foto-bandeja { position: relative; aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-3); cursor: grab; border: none; padding: 0; }
.foto-bandeja img { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; }
.foto-bandeja:hover { box-shadow: 0 0 0 2px var(--brand-accent); }
.foto-bandeja .uso { position: absolute; right: 4px; bottom: 4px; min-width: 20px; height: 20px; border-radius: var(--radius-full); background: var(--brand-accent); color: #fff; font-size: 11px; font-weight: 600; display: flex; align-items: center; justify-content: center; padding: 0 5px; gap: 1px; }
.foto-bandeja .uso .ms { font-size: 13px; }
.foto-bandeja .quitar { position: absolute; right: 4px; top: 4px; width: 22px; height: 22px; border-radius: 50%; background: rgba(0,0,0,.6); color: #fff; display: none; align-items: center; justify-content: center; }
.foto-bandeja .quitar .ms { font-size: 15px; }
.foto-bandeja:hover .quitar { display: flex; }
@media (hover: none) { .foto-bandeja .quitar { display: flex; width: 26px; height: 26px; } }
.foto-bandeja .origen { position: absolute; left: 4px; bottom: 4px; font-size: 9px; font-weight: 600; background: rgba(255,255,255,.9); color: var(--fg-2); padding: 1px 6px; border-radius: var(--radius-full); letter-spacing: .3px; }
.foto-bandeja.sin-usar-oculta { display: none; }
.contador-fotos { font-size: 12px; color: var(--fg-3); }

/* ---- Diseños de página (panel) --------------------------------------- */
.grilla-disenos { display: grid; grid-template-columns: repeat(auto-fill, minmax(82px, 1fr)); gap: 10px; }
.diseno-opcion { border: 1px solid var(--border-1); border-radius: var(--radius-sm); background: var(--bg-1); padding: 8px; cursor: pointer; display: flex; flex-direction: column; gap: 6px; align-items: center; }
.diseno-opcion:hover { border-color: var(--border-2); background: var(--bg-2); }
.diseno-opcion.activo { border-color: var(--brand-accent); box-shadow: 0 0 0 1px var(--brand-accent); background: var(--brand-accent-soft); }
.diseno-dibujo { position: relative; width: 100%; background: #fff; box-shadow: 0 0 0 1px var(--border-1); }
.diseno-dibujo i { position: absolute; background: var(--neutral-300); border-radius: 1px; }
.diseno-opcion.activo .diseno-dibujo i { background: color-mix(in srgb, var(--brand-accent) 55%, white); }
.diseno-opcion small { font-size: 10px; color: var(--fg-3); line-height: 13px; text-align: center; }

/* ---- Colores ------------------------------------------------------------- */
.paleta { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.muestra-color { aspect-ratio: 1; border-radius: 50%; border: 1px solid rgba(0,0,0,.12); cursor: pointer; padding: 0; position: relative; }
.muestra-color.activo::after { content: ''; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid var(--brand-accent); }
.color-libre { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--fg-2); }
.color-libre input[type=color] { width: 40px; height: 32px; border: 1px solid var(--border-2); border-radius: var(--radius-sm); padding: 2px; background: var(--bg-1); cursor: pointer; }
.color-libre code { font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); }

/* ---- Diálogos (MD3: 28 px, scrim). En el celular suben desde abajo ------- */
.scrim { position: fixed; inset: 0; background: var(--md-sys-color-scrim); z-index: 100; display: flex; align-items: flex-end; justify-content: center; padding: 0; animation: aparecer var(--motion-duration-medium) var(--motion-easing-decelerate); }
.dialogo { background: var(--bg-1); border-radius: var(--radius-xl) var(--radius-xl) 0 0; box-shadow: var(--elev-5); width: min(720px, 100%); max-height: 94dvh; display: flex; flex-direction: column; overflow: hidden; padding-bottom: env(safe-area-inset-bottom); }
/* Cada diálogo trae su ancho de escritorio en el atributo style: en el celular van de lado a lado */
@media (max-width: 860px) { .dialogo { width: 100% !important; } }
.dialogo-cabecera { padding: 20px 16px 8px 20px; display: flex; align-items: flex-start; gap: 12px; }
.dialogo-cabecera h2 { font: var(--type-headline-s-weight) 22px/28px var(--font-sans); flex: 1; margin: 0; }
.dialogo-cabecera p { font-size: 14px; color: var(--fg-2); margin: 6px 0 0; line-height: 20px; }
.dialogo-cuerpo { padding: 12px 20px; overflow-y: auto; display: flex; flex-direction: column; gap: 20px; overscroll-behavior: contain; }
.dialogo-acciones { padding: 12px 16px 16px; display: flex; justify-content: flex-end; gap: 8px; align-items: center; flex-wrap: wrap; }
.dialogo-acciones .relleno { flex: 1; }
@keyframes aparecer { from { opacity: 0; } to { opacity: 1; } }

.campo { display: flex; flex-direction: column; gap: 6px; }
.campo > span { font-size: 12px; font-weight: 600; color: var(--fg-2); letter-spacing: .3px; }
.campo input[type=text] { height: 48px; border: 1px solid var(--border-2); border-radius: var(--radius-sm); padding: 0 14px; font-size: 16px; background: var(--bg-1); }
.campo input[type=text]:focus { outline: none; border-color: var(--brand-accent); box-shadow: 0 0 0 1px var(--brand-accent); }

.opciones-evento { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 8px; }
.opcion-evento { border: 1px solid var(--border-1); border-radius: var(--radius-md); background: var(--bg-1); padding: 14px 8px 12px; display: flex; flex-direction: column; align-items: center; gap: 6px; cursor: pointer; font-weight: 500; font-size: 13px; color: var(--fg-2); }
.opcion-evento .ms { font-size: 26px; color: var(--fg-3); }
.opcion-evento:hover { background: var(--bg-2); border-color: var(--border-2); }
.opcion-evento.activo { border-color: var(--brand-accent); background: var(--brand-accent-soft); color: var(--brand-accent); box-shadow: 0 0 0 1px var(--brand-accent); }
.opcion-evento.activo .ms { color: var(--brand-accent); }

.opciones-formato { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.opcion-formato { border: 1px solid var(--border-1); border-radius: var(--radius-md); background: var(--bg-1); padding: 14px 10px 12px; display: flex; flex-direction: column; align-items: center; gap: 8px; cursor: pointer; }
.opcion-formato .dibujo { height: 64px; display: flex; align-items: center; justify-content: center; }
.opcion-formato .dibujo i { display: block; background: var(--bg-3); border: 1.5px solid var(--neutral-400); border-radius: 2px; }
.opcion-formato b { font-size: 14px; font-weight: 600; }
.opcion-formato small { font-size: 12px; color: var(--fg-3); }
.opcion-formato:hover { background: var(--bg-2); }
.opcion-formato.activo { border-color: var(--brand-accent); background: var(--brand-accent-soft); box-shadow: 0 0 0 1px var(--brand-accent); }
.opcion-formato.activo .dibujo i { border-color: var(--brand-accent); background: color-mix(in srgb, var(--brand-accent) 15%, white); }

/* ---- Toast (snackbar) --------------------------------------------------- */
.toast { position: fixed; left: 50%; bottom: calc(80px + env(safe-area-inset-bottom)); transform: translateX(-50%) translateY(16px); width: max-content; background: var(--md-sys-color-inverse-surface); color: var(--md-sys-color-inverse-on-surface); padding: 12px 18px; border-radius: var(--radius-sm); box-shadow: var(--elev-3); font-size: 14px; display: flex; align-items: center; gap: 10px; opacity: 0; pointer-events: none; transition: opacity var(--motion-duration-medium), transform var(--motion-duration-medium) var(--motion-easing-standard); z-index: 200; max-width: min(560px, calc(100vw - 32px)); }
.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.toast .ms { font-size: 20px; }
.toast.exito .ms { color: var(--green-300); }
.toast.error .ms { color: var(--red-300); }
.toast button { color: var(--blue-300); background: none; border: none; font-weight: 600; cursor: pointer; padding: 0 0 0 8px; }

/* ---- Pantallas táctiles: blancos más grandes para el dedo ---------------- */
@media (pointer: coarse) {
    .btn-chico { height: 38px; }
    .barra-contextual .btn-icono { width: 42px; height: 42px; }
    .chip { height: 36px; }
}

/* ---- Escritorio: riel a la izquierda, panel fijo, tira de páginas -------- */
@media (min-width: 861px) {
    .app { grid-template-rows: 64px minmax(0, 1fr) auto; }
    .barra-superior { gap: 8px; padding: 0 12px 0 16px; }
    .barra-superior .divisor { display: block; }
    .barra-superior .relleno { flex: 1; }
    .titulo-libro { min-width: 120px; width: auto; padding: 6px 10px; flex: 0 1 320px; }
    .btn-menu { display: none; }
    .acciones-libro, .acciones-libro.abierto { display: flex; position: static; flex-direction: row; align-items: center; gap: 8px; padding: 0; min-width: 0; background: none; box-shadow: none; }
    .acciones-libro .btn { height: 40px; padding: 0 20px; }
    .acciones-libro .btn-texto { padding: 0 12px; }
    .acciones-libro .btn-contorno { border: 1px solid var(--border-2); }
    .acciones-libro .btn-relleno { margin-top: 0; }
    .acciones-libro .btn-icono { width: 40px; height: 40px; border-radius: 50%; justify-content: center; padding: 0; }
    .acciones-libro .btn-icono::after, .acciones-libro .btn-icono[data-etiqueta]::after { content: none; }
    .selector-etapa { display: flex; }

    .cuerpo { grid-template-columns: 80px 280px minmax(0, 1fr); grid-template-rows: none; grid-template-areas: "riel panel mesa"; }
    .riel { flex-direction: column; align-items: center; gap: 4px; padding: 12px 0; border-top: none; border-right: 1px solid var(--border-1); overflow-x: hidden; overflow-y: auto; }
    .riel button { flex: 0 0 auto; width: 76px; min-width: 0; font-size: 12px; padding: 4px 0 6px; }
    .riel button:hover .indicador { background: var(--bg-3); }
    .riel button.activo .indicador, .hoja-abierta .riel button.activo .indicador { background: var(--brand-accent-soft); color: var(--brand-accent); }
    .riel .novedad { display: block; }

    .panel, .panel.cerrado-movil { grid-area: panel; position: static; display: flex; height: auto; border-radius: 0; box-shadow: none; border-right: 1px solid var(--border-1); animation: none; }
    .panel-manija { display: none; }
    .panel-cabecera { padding: 20px 20px 8px; }
    .panel-cabecera h2 { font-size: var(--type-title-l-size); line-height: var(--type-title-l-line); }
    .panel-cuerpo { padding: 8px 20px 20px; }
    .panel-pie { padding: 12px 20px 16px; }

    .barra-contextual { height: 56px; gap: 6px; padding: 0 16px; }
    .barra-contextual .pista { display: inline; }
    .barra-contextual .sep { margin: 0 6px; }
    .barra-contextual input[type=range] { width: 120px; }
    .escenario { padding: 32px 72px 48px; }
    .flecha-pliego.izq { left: 16px; }
    .flecha-pliego.der { right: 16px; }
    .control-zoom { right: 16px; bottom: 16px; }
    .control-zoom .btn-icono { width: 32px; height: 32px; }
    .control-zoom .btn-icono .ms { font-size: 18px; }
    .control-zoom > :not(:first-child) { display: inline-flex; }
    .leyenda-pliego { display: block; }
    .vista-libro .leyenda-pliego { display: none; }
    .libro { gap: 32px; padding: 28px 56px 72px; }
    .tira { display: flex; }

    .scrim { align-items: center; padding: 24px; }
    .dialogo { border-radius: var(--radius-xl); max-height: calc(100vh - 48px); padding-bottom: 0; }
    .dialogo-cabecera { padding: 24px 24px 8px; }
    .dialogo-cabecera h2 { font-size: var(--type-headline-s-size); line-height: var(--type-headline-s-line); }
    .dialogo-cuerpo { padding: 12px 24px; }
    .dialogo-acciones { padding: 16px 24px 24px; flex-wrap: nowrap; }
    .toast { bottom: 152px; }
}
@media (min-width: 1101px) {
    .cuerpo { grid-template-columns: 88px 320px minmax(0, 1fr); }
    .riel button { width: 80px; }
    .marca b { display: inline; }
    .dato-libro { display: inline; }
}