:root{--bg:#0b0e1a;--bg-raised:#141a2e;--border:#232b47;--text:#e8e6f0;--text-dim:#9b97b0;--accent:#c9a84c;--accent-soft:#8d7ee8;--danger:#e5484d;--exito:#7ee8a2;--radius:10px}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,system-ui,sans-serif}a{color:var(--accent-soft);text-decoration:none}button{background:var(--accent);color:#1a1405;border-radius:var(--radius);cursor:pointer;border:0;padding:.6rem 1.1rem;font-weight:600}button.secundario{background:var(--bg-raised);color:var(--text);border:1px solid var(--border)}input,select{background:var(--bg-raised);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);width:100%;padding:.55rem .8rem}label{color:var(--text-dim);margin:.8rem 0 .3rem;font-size:.85rem;display:block}.error{color:var(--danger);margin-top:.4rem;font-size:.85rem}.contrib-positiva{color:var(--exito)}.contrib-negativa{color:var(--danger)}.birueda-cuerda{stroke-opacity:.45}.birueda-cuerda-activa{stroke-opacity:.85}.birueda-cuerda-tenue{stroke-opacity:.08}.shell{min-height:100vh;display:flex}.shell-nav{border-right:1px solid var(--border);flex-shrink:0;width:220px;padding:1rem}.shell-nav h1{color:var(--accent);font-size:1.1rem}.shell-nav .nav-enlace{border-radius:var(--radius);color:var(--text-dim);padding:.55rem .9rem;display:block}.shell-nav .nav-enlace.activo{color:var(--accent);background:var(--bg-raised)}.shell-salir{width:100%;margin-top:2rem}.shell-main{flex:1;min-width:0;max-width:900px;padding:2rem}.chat-layout{gap:1.5rem;height:calc(100vh - 4rem);display:flex}.chat-sesiones{flex-direction:column;flex-shrink:0;gap:.6rem;width:240px;display:flex}.chat-conversacion{flex:1;min-width:0}.panel-chat{z-index:30;background:var(--bg-raised);border-left:1px solid var(--border);flex-direction:column;gap:.6rem;width:min(400px,100vw);padding:1rem;display:flex;position:fixed;top:0;bottom:0;right:0}@media (width<=760px){.shell{flex-direction:column}.shell-nav{border-right:0;border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:.15rem .35rem;width:auto;padding:.6rem .8rem;display:flex}.shell-nav h1{width:100%;margin:.2rem 0 .5rem}.shell-nav .nav-enlace{padding:.35rem .6rem}.shell-salir{width:auto;margin:0 0 0 auto;padding:.35rem .8rem}.shell-main{padding:1rem 1rem 5.5rem}.chat-layout{flex-direction:column;height:auto}.chat-sesiones{width:auto;max-height:30vh;overflow-y:auto}.chat-conversacion{height:65vh}table{display:block;overflow-x:auto}}