:root{--fondo: #F4F3EE;--superficie: #FFFFFF;--tinta: #1C2430;--suave: #5B6472;--borde: #E3E1D9;--borde-fuerte: #CBD2DA;--principal: #1E3A5F;--principal-hover: #142A45;--principal-claro: #EEF2F7;--error: #9F1239;--error-fondo: #FDE8EC;--aviso: #1F5135;--aviso-fondo: #DCEFE3;--nav: 68px;--radio: 16px;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--tinta);background:var(--fondo);-webkit-text-size-adjust:100%}*{box-sizing:border-box}body{margin:0;background:var(--fondo)}a{color:var(--principal)}button,input,select,textarea{font:inherit;color:inherit}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.app{max-width:560px;margin:0 auto;min-height:100dvh}.contenido{padding-bottom:calc(var(--nav) + 96px + env(safe-area-inset-bottom))}.pantalla-centro{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:20px}.cabecera{padding:24px 20px 8px;display:flex;flex-direction:column;gap:4px}.cabecera.con-atras{flex-direction:row;align-items:center;gap:4px;padding-left:8px}.titulo{margin:0;font-size:26px;font-weight:700;letter-spacing:-.4px}.subtitulo{margin:0;font-size:17px}.paso{margin:8px 0 0;font-size:12px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--suave)}.suave{color:var(--suave);margin:0}.pequeno{font-size:12px}.pila{display:flex;flex-direction:column;gap:12px;padding:8px 16px 16px}.tarjeta .pila,form.pila,section.pila{padding:0}section.tarjeta.pila,form.tarjeta.pila{padding:16px}.dos-columnas{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;align-items:end}.tarjeta{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:14px;color:var(--tinta);text-decoration:none}.acceso{width:100%;max-width:380px;display:flex;flex-direction:column;gap:14px;padding:24px}.error{margin:0;padding:10px 12px;border-radius:12px;background:var(--error-fondo);color:var(--error);font-size:14px}.error.pequeno{padding:4px 8px;font-size:12px}.aviso{margin:0;padding:10px 12px;border-radius:12px;background:var(--aviso-fondo);color:var(--aviso);font-size:14px}.campo{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--suave)}.campo input,.campo select,.campo textarea,.fila-nuevo input{min-height:46px;padding:10px 12px;border:1px solid var(--borde-fuerte);border-radius:12px;background:var(--superficie);font-size:16px;font-weight:400;color:var(--tinta);width:100%}.campo textarea{resize:vertical}input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid #93B4DA;outline-offset:2px}.boton{min-height:46px;padding:0 18px;border-radius:12px;border:1px solid var(--borde-fuerte);background:var(--superficie);color:var(--principal);font-weight:700;font-size:15px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}.boton:disabled{opacity:.55;cursor:default}.boton.primario{background:var(--principal);border-color:var(--principal);color:#fff}.boton.primario:hover:not(:disabled){background:var(--principal-hover)}.boton.pequeno{min-height:40px;padding:0 12px;font-size:13px}.boton.ancho{width:100%}.boton.enlace{border:none;background:none;min-height:40px;text-decoration:underline;font-weight:600}.boton.discontinuo{border-style:dashed;color:#3a4250;background:transparent;justify-content:flex-start;font-weight:600}.boton.peligro{color:var(--error);border-color:#f3b5c2;background:transparent;margin-top:12px}.boton-icono{width:44px;height:44px;border-radius:22px;border:none;background:transparent;color:var(--tinta);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex:0 0 auto}.selector-fecha{display:flex;align-items:center;gap:4px;margin-top:6px}.campo-fecha input{min-height:44px;padding:6px 10px;border:1px solid var(--borde-fuerte);border-radius:12px;background:var(--superficie);font-size:16px}.sesion{display:flex;flex-direction:column;gap:8px;text-align:left;width:100%}.sesion.vacia{border-style:dashed;border-color:#c9c5b8;background:transparent;cursor:pointer}.sesion-cab{display:flex;justify-content:space-between;align-items:center;gap:8px}.sesion-titulo{font-weight:700;font-size:15px}.sesion-proyecto{font-weight:600;font-size:15px}.fila-icono{display:inline-flex;align-items:center;gap:6px}.estado{font-size:12px;font-weight:600;padding:4px 10px;border-radius:12px;white-space:nowrap}.estado.verde{background:#dcefe3;color:#1f5135}.estado.ambar{background:#fce7c8;color:#7a3e06}.estado.gris{background:#e6e8eb;color:#3a4250}.chip{align-self:flex-start;font-size:11px;font-weight:700;letter-spacing:.6px;padding:4px 8px;border-radius:6px}.actividad{display:flex;align-items:center;gap:10px}.actividad-texto{flex:1 1 auto;display:flex;flex-direction:column;gap:6px;min-width:0}.lista-alumnos{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.alumno{display:flex;flex-direction:column;gap:10px;padding:12px}.alumno-cab{display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:32px}.alumno-nombre{font-weight:600;font-size:15px}.obs{font-size:12px;font-weight:600;color:#3a4250;background:#f1f0ea;border:1px solid #DAD7CC;border-radius:14px;padding:6px 10px;min-height:32px;max-width:55%;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.notas{display:flex;gap:8px}.nota{flex:1 1 0;height:48px;border-radius:12px;border:1px solid var(--borde-fuerte);background:var(--superficie);font-size:17px;font-weight:700;cursor:pointer;color:var(--tinta);touch-action:manipulation}.pie-fijo{position:fixed;left:50%;transform:translate(-50%);width:100%;max-width:560px;bottom:calc(var(--nav) + env(safe-area-inset-bottom));background:var(--superficie);border-top:1px solid var(--borde);padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;z-index:5}.hoja-fondo{position:fixed;top:0;right:0;bottom:0;left:0;background:#141a2473;z-index:20;display:flex;align-items:flex-end;justify-content:center}.hoja{background:var(--fondo);width:100%;max-width:560px;max-height:88dvh;border-radius:20px 20px 0 0;display:flex;flex-direction:column;padding-bottom:env(safe-area-inset-bottom)}.hoja-cab{display:flex;justify-content:space-between;align-items:center;padding:10px 8px 4px 20px}.hoja-cab h2{margin:0;font-size:18px}.hoja-cuerpo{overflow-y:auto;padding:4px 16px 16px;display:flex;flex-direction:column;gap:10px}.hoja-pie{border-top:1px solid var(--borde);padding:12px 16px;display:flex;flex-direction:column;gap:8px;background:var(--superficie)}.resumen{margin:0;font-size:13px;font-weight:600;color:#3a4250}.fila-chips{display:flex;flex-wrap:wrap;gap:8px}.chip-boton{min-height:44px;padding:0 16px;border-radius:22px;border:1px solid;font-size:13px;font-weight:700;letter-spacing:.4px;cursor:pointer}.lista-opciones{display:flex;flex-direction:column;gap:8px}.opcion{min-height:50px;padding:0 16px;border-radius:14px;border:1px solid var(--borde);background:var(--superficie);font-size:15px;font-weight:500;text-align:left;display:flex;align-items:center;justify-content:space-between;cursor:pointer}.opcion.sel{border:2px solid var(--principal);font-weight:700}.fila-nuevo{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.fila-nuevo input{flex:1 1 180px;width:auto}.lista-simple{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.fila-alumno{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.tarjeta.fila-alumno{padding:8px 8px 8px 14px}.acciones{display:flex;gap:6px;flex-wrap:wrap}.segmentos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;background:#e7e5dd;padding:4px;border-radius:14px}.segmentos button{min-height:40px;border:none;border-radius:10px;background:transparent;font-weight:600;cursor:pointer;color:#3a4250}.segmentos button[aria-pressed=true]{background:var(--superficie);color:var(--tinta);box-shadow:0 1px 2px #0000001f}.checks{border:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 14px}.check{display:inline-flex;align-items:center;gap:8px;min-height:40px;font-size:14px}.check input{width:20px;height:20px}.tarjeta.profe{padding:12px 14px;gap:6px}.barra-nav{position:fixed;left:50%;transform:translate(-50%);bottom:0;width:100%;max-width:560px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));background:var(--superficie);border-top:1px solid var(--borde);padding:6px 8px calc(6px + env(safe-area-inset-bottom));z-index:10}.nav-item{min-height:52px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:12px;font-weight:500;color:var(--suave);text-decoration:none}.nav-item.activo{color:var(--principal);font-weight:700}