:root{
  --bg:#0b1020;
  --card:#0f1731;
  --text:#e8ecff;
  --muted:rgba(232,236,255,.75);
  --line:rgba(255,255,255,.12);
  --accent:#7c5cff;
  --accent2:#35d5ff;
  --danger:#ff5d7a;
  --ok:#56f29b;
  --warn:#ffd36a;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  background:radial-gradient(1200px 600px at 20% 0%, rgba(124,92,255,.18), transparent 55%),
             radial-gradient(900px 450px at 80% 15%, rgba(53,213,255,.14), transparent 60%),
             var(--bg);
  color:var(--text);
}

.topbar{
  position:sticky; top:0; z-index:5;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  backdrop-filter: blur(10px);
  background: rgba(11,16,32,.70);
}

.brand{display:flex; gap:12px; align-items:center}
.logo{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  font-weight:900;
  background:linear-gradient(135deg, rgba(124,92,255,.9), rgba(53,213,255,.75));
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.title{font-weight:900; letter-spacing:.3px}
.sub{font-size:12px; color:var(--muted)}

.top-actions{display:flex; gap:10px; align-items:center}

.btn{
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.08);
  color:var(--text);
  padding:10px 12px;
  border-radius:12px;
  cursor:pointer;
  font-weight:800;
}
.btn:hover{transform:translateY(-1px)}
.btn.ghost{background:transparent}

.wrap{max-width:1300px; margin:0 auto; padding:16px}

.card{
  border:1px solid var(--line);
  background:rgba(15,23,49,.55);
  border-radius:18px;
  box-shadow:0 18px 60px rgba(0,0,0,.35);
  overflow:hidden;
}

.tabs{
  display:flex; gap:10px;
  padding:12px;
  border-bottom:1px solid var(--line);
  background:rgba(0,0,0,.18);
}
.tab{
  border:1px solid rgba(255,255,255,.12);
  background:transparent;
  color:var(--muted);
  padding:10px 12px;
  border-radius:12px;
  cursor:pointer;
  font-weight:900;
}
.tab.active{
  color:var(--text);
  border-color:rgba(124,92,255,.45);
  background:rgba(124,92,255,.12);
}

.panel{display:none; padding:12px}
.panel.active{display:block}

.row{display:flex; gap:10px; align-items:center}
.between{justify-content:space-between}
.hint{color:var(--muted); font-size:13px}

.pillbar{display:flex; gap:8px; flex-wrap:wrap; justify-content:flex-end}
.pill{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.18);
  color:var(--text);
  padding:8px 10px;
  border-radius:999px;
  cursor:pointer;
  font-weight:800;
  font-size:12px;
}
.pill:hover{transform:translateY(-1px)}

.grid{
  margin-top:10px;
  display:grid;
  grid-template-columns: 1.3fr .9fr;
  gap:12px;
}

.editorBox{
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:rgba(0,0,0,.20);
  min-height:520px;
}
.editorHeader{
  display:flex; align-items:center; justify-content:space-between;
  padding:10px 12px;
  border-bottom:1px solid var(--line);
}
.editorTitle{font-weight:900}
.editorMeta{color:var(--muted); font-size:12px}
#editor{height:560px}

.side{display:flex; flex-direction:column; gap:12px}
.box{
  border:1px solid var(--line);
  border-radius:16px;
  background:rgba(0,0,0,.18);
  overflow:hidden;
}
.boxTitle{
  padding:10px 12px;
  font-weight:900;
  border-bottom:1px solid var(--line);
}
.boxBody{padding:10px 12px; color:var(--text); line-height:1.55}
.boxFooter{padding:0 12px 12px; color:var(--muted); font-size:12px}

.out{
  padding:10px 12px;
  white-space:pre-wrap;
  min-height:120px;
}

.errpanel{
  margin:10px 12px 12px;
  border:1px solid rgba(255,93,122,.30);
  background:rgba(255,93,122,.08);
  border-radius:14px;
  padding:10px 10px 12px;
}
.errtitle{
  display:flex; align-items:center; gap:10px;
  font-weight:900;
  color:var(--danger);
}
.errbadge{
  display:inline-flex; align-items:center; justify-content:center;
  min-width:28px;
  height:22px;
  padding:0 8px;
  border-radius:999px;
  background:rgba(255,93,122,.16);
  border:1px solid rgba(255,93,122,.35);
  color:var(--danger);
  font-size:12px;
  font-weight:900;
}
.err{color:var(--danger); white-space:pre-wrap; margin-top:8px}
.errhint{margin-top:10px; color:rgba(232,236,255,.9); opacity:.95}

.tests{
  padding:0 12px 12px;
  display:flex; flex-direction:column; gap:8px;
}
.testRow{
  display:flex; gap:10px; align-items:flex-start;
  border:1px solid rgba(255,255,255,.10);
  border-radius:12px;
  padding:10px;
  background:rgba(255,255,255,.05);
}
.badge{
  min-width:26px; height:22px;
  border-radius:999px;
  display:inline-grid; place-items:center;
  font-weight:900; font-size:12px;
  border:1px solid rgba(255,255,255,.14);
}
.badge.ok{color:var(--ok); border-color:rgba(86,242,155,.35); background:rgba(86,242,155,.08)}
.badge.no{color:var(--danger); border-color:rgba(255,93,122,.35); background:rgba(255,93,122,.08)}
.badge.warn{color:var(--warn); border-color:rgba(255,211,106,.35); background:rgba(255,211,106,.08)}

.plots{padding:0 12px 12px; display:flex; flex-direction:column; gap:10px}
.plotCanvas{
  width:100%;
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  overflow:hidden;
}

.lessonList{
  display:flex;
  flex-direction:column;
  gap:14px;
}

.levelGroup{border:1px solid rgba(255,255,255,.10); background:rgba(0,0,0,.14); border-radius:18px; overflow:hidden}
.levelHead{display:flex; align-items:center; justify-content:space-between; padding:12px 12px; border-bottom:1px solid rgba(255,255,255,.10); background:rgba(255,255,255,.03)}
.levelTitle{display:flex; align-items:center; gap:10px; font-weight:900; letter-spacing:.2px}
.countBadge{padding:3px 10px; border-radius:999px; font-size:12px; font-weight:800; border:1px solid rgba(255,255,255,.14); background:rgba(255,255,255,.06); color:rgba(232,236,255,.92)}
.lessonGrid{display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:12px; padding:12px}
.lessonCard{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.20);
  border-radius:16px;
  padding:12px;
  cursor:pointer;
  transition:transform .12s ease, border-color .12s ease, background .12s ease;
  color:rgba(232,236,255,.95);
}
.lessonCard:hover{transform:translateY(-1px)}
.lessonCard.active{border-color:rgba(53,213,255,.45); background:rgba(53,213,255,.08)}
.lessonCard h3{margin:0 0 6px 0}
.lessonCard p{margin:0; color:rgba(232,236,255,.88); line-height:1.45}
.lessonCard .metaRow{display:flex; align-items:center; gap:10px; margin-top:8px}
.lessonCard .metaRow .muted{opacity:.72}

.datasetCard{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.18);
  border-radius:16px;
  padding:12px;
}
pre{white-space:pre-wrap}
code{color:rgba(53,213,255,.95)}


/* DataFrame table (mejor look) */
.tableBox{margin-top:10px; border:1px solid rgba(255,255,255,.12); border-radius:16px; background:rgba(0,0,0,.18); overflow:hidden}
.tableTitle{padding:10px 12px; font-weight:700; letter-spacing:.2px; border-bottom:1px solid rgba(255,255,255,.10)}
.tableScroll{max-height:260px; overflow:auto}
.dfTable{width:100%; border-collapse:separate; border-spacing:0; font-size:13px}
.dfTable thead th{position:sticky; top:0; background:rgba(8,12,24,.95); backdrop-filter:blur(8px); border-bottom:1px solid rgba(255,255,255,.12); padding:10px 10px; text-align:left; font-weight:700}
.dfTable tbody td{padding:9px 10px; border-bottom:1px solid rgba(255,255,255,.08); color:rgba(232,236,255,.92)}
.dfTable tbody tr:nth-child(odd) td{background:rgba(255,255,255,.02)}
.dfTable tbody tr:hover td{background:rgba(255,255,255,.06)}
.dfTable .num{text-align:right; font-variant-numeric:tabular-nums}
.dfTable .muted{opacity:.75}


/* Level badge */
.levelBadge{display:inline-flex; align-items:center; padding:3px 10px; border-radius:999px; font-size:12px; font-weight:700; border:1px solid rgba(255,255,255,.14); background:rgba(255,255,255,.06);}
.levelBadge[data-level='Inicio']{background:rgba(0,255,170,.08); border-color:rgba(0,255,170,.22);}
.levelBadge[data-level='Intermedio']{background:rgba(255,196,0,.08); border-color:rgba(255,196,0,.22);}
.levelBadge[data-level='Avanzado']{background:rgba(255,90,128,.08); border-color:rgba(255,90,128,.22);}

/* Dataset panel */
.datasetBox{margin-top:10px; border:1px solid rgba(255,255,255,.12); border-radius:16px; background:rgba(0,0,0,.18); overflow:hidden}
.datasetTitle{padding:10px 12px; font-weight:800; letter-spacing:.2px; border-bottom:1px solid rgba(255,255,255,.10)}
.datasetScroll{max-height:220px; overflow:auto}

/* DataFrame tweaks */
.dfTable td.num{text-align:right; font-variant-numeric:tabular-nums}
.dfTable tbody tr:nth-child(odd){background:rgba(255,255,255,.03)}
.dfTable tbody tr:hover{background:rgba(255,255,255,.06)}

/* Lesson groups */
.lessonGroup{margin:10px 0 6px; padding:0 6px}
.lessonGroupRow{display:flex; align-items:center; justify-content:space-between; gap:10px}
.lessonGroupHint{opacity:.75; font-size:12px}
.lessonItem{width:100%; text-align:left; border:1px solid rgba(255,255,255,.10); background:rgba(0,0,0,.16); color:inherit; border-radius:14px; padding:10px 10px; margin:6px 0; cursor:pointer}
.lessonItem:hover{background:rgba(255,255,255,.05)}
.lessonItem.active{border-color:rgba(0,255,170,.35); box-shadow:0 0 0 2px rgba(0,255,170,.10) inset}
.liTop{display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:6px}
.liId{font-size:12px; opacity:.8}
.liTitle{font-size:13px; font-weight:700; line-height:1.25}

/* Datasets card */
.datasetsCard{margin-top:12px; border:1px solid rgba(255,255,255,.10); border-radius:16px; background:rgba(0,0,0,.12); padding:12px}
.datasetsHead{display:flex; flex-direction:column; gap:10px}
.datasetsTitle{font-weight:800}
.datasetsPills{display:flex; flex-wrap:wrap; gap:8px}
.datasetsPills .pill{border:1px solid rgba(255,255,255,.12); background:rgba(255,255,255,.04); color:inherit; padding:6px 10px; border-radius:999px; cursor:pointer}
.datasetsPills .pill.active{border-color:rgba(0,255,170,.35); background:rgba(0,255,170,.08)}
.datasetNote{margin:8px 0 10px; opacity:.85; font-size:13px}
.datasetScroll{max-height:260px; overflow:auto; border-radius:12px; border:1px solid rgba(255,255,255,.10)}

/* Dataset preview */
.dataset-table{ width:100%; border-collapse:separate; border-spacing:0; overflow:hidden; border-radius:14px; }
.dataset-table thead th{ text-align:left; font-weight:650; font-size:13px; padding:10px 12px; background:rgba(255,255,255,.06); border-bottom:1px solid rgba(255,255,255,.10); position:sticky; top:0; z-index:1; }
.dataset-table tbody td{ padding:9px 12px; border-bottom:1px solid rgba(255,255,255,.06); font-size:13px; }
.dataset-table tbody tr:hover td{ background:rgba(255,255,255,.04); }
.tips{ margin:10px 0 0; padding-left:18px; }
.tips li{ margin:6px 0; opacity:.95; }
code.mono{ font-family: ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace; font-size:12.5px; }
.lvl-badge{ padding:4px 10px; border-radius:999px; font-size:12px; font-weight:650; border:1px solid rgba(255,255,255,.14); }
.lvl-inicio{ background:rgba(46,204,113,.15); color:#b7f5cc; }
.lvl-intermedio{ background:rgba(241,196,15,.15); color:#ffeaa7; }
.lvl-avanzado{ background:rgba(231,76,60,.15); color:#ffb3ab; }
.cs-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:12px; margin-top:14px; }
.cs-card{ border:1px solid rgba(255,255,255,.12); background:rgba(0,0,0,.20); border-radius:16px; padding:12px 12px; }
.cs-h{ font-weight:750; margin-bottom:8px; }
.cs-b{ opacity:.95; line-height:1.6; font-size:13px; }


/* --- Enhancements: console + datasets (non-breaking) --- */
.out{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  padding: 12px 12px;
  min-height: 120px;
}
.out .dim{opacity:.75}
.datasetCard pre{white-space:pre-wrap}
.dsTableWrap{
  margin-top:10px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  overflow:hidden;
  background: rgba(0,0,0,.18);
}
.dsTable{
  width:100%;
  border-collapse: collapse;
  font-size: 13px;
}
.dsTable th, .dsTable td{
  padding:10px 12px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.dsTable th{
  text-align:left;
  background: rgba(255,255,255,.06);
  font-weight: 700;
}
.dsTable tr:hover td{ background: rgba(255,255,255,.04); }
.levelPill{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.2px;
  border:1px solid rgba(255,255,255,.16);
}
.levelPill.inicio{ background: rgba(46, 204, 113, .14); color:#bff7d0; }
.levelPill.intermedio{ background: rgba(241, 196, 15, .14); color:#fff1b8; }
.levelPill.avanzado{ background: rgba(231, 76, 60, .14); color:#ffd0cb; }

/* Help box */
.helpwrap{padding:0 12px 12px; display:flex; flex-direction:column; gap:8px;}
.helptitle{font-weight:800; opacity:.95}
.helpbox{
  border:1px dashed rgba(255,255,255,.18);
  border-radius:14px;
  padding:10px 12px;
  background:rgba(0,0,0,.18);
  color:rgba(232,236,255,.92);
  line-height:1.5;
}
.helphead{font-weight:900; margin-bottom:8px;}
.helpcode{margin:0; white-space:pre-wrap}
.helpmeta{font-size:12px; opacity:.75}
.btn.small{padding:8px 10px; font-size:12px; border-radius:12px}

.helptext{opacity:.92}


/* --- Progreso + Panel (add-only, non-breaking) --- */
.progRow{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin:10px 0 14px;
  padding:0 4px;
}
.progBar{
  flex:1;
  height:10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(0,0,0,.20);
  overflow:hidden;
}
.progFill{
  height:100%;
  width:0%;
  background:linear-gradient(90deg, rgba(0,255,170,.20), rgba(140,255,0,.18));
}
.progText{font-size:12px; opacity:.9; white-space:nowrap}

.levelHead{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px;
  margin:14px 2px 6px;
  padding:0 2px;
}
.levelTitle{
  font-weight:900;
  letter-spacing:.2px;
  color:rgba(232,236,255,.96);
}
.levelCount{font-size:12px; opacity:.82}

.lessonMarks{font-size:14px; opacity:.95}

.panelWrap{
  padding:14px 10px;
}
.panelTitle{
  font-weight:900;
  letter-spacing:.2px;
  margin-bottom:6px;
}
.panelHint{font-size:12px; opacity:.78; margin-bottom:10px}
.panelGrid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:10px;
  margin:10px 0;
}
.pCard{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.18);
  border-radius:16px;
  padding:12px;
}
.pK{font-size:12px; opacity:.8; margin-bottom:6px}
.pV{font-size:22px; font-weight:950}
.pS{font-size:12px; opacity:.78; margin-top:4px}

.bar{height:10px; border-radius:999px; border:1px solid rgba(255,255,255,.14); background:rgba(0,0,0,.20); overflow:hidden; margin-top:10px}
.barFill{height:100%; background:rgba(0,255,170,.18); width:0%}

.timeList{
  display:flex;
  flex-direction:column;
  gap:8px;
}
.timeRow{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.14);
  border-radius:14px;
  padding:10px 12px;
}
.timeTitle{font-weight:800; font-size:13px}
.timeMeta{font-size:12px; opacity:.78; margin-top:2px}
.timeRight{font-variant-numeric:tabular-nums; opacity:.9}

/*para el boton de borrar todo*/
/* Botón peligro */
.btn.danger{ border-color: rgba(255,80,120,.35); }
.btn.danger:hover{ border-color: rgba(255,80,120,.55); }
.btn.danger:not(.ghost){ background: rgba(255,80,120,.14); }

/* Modal */
.modal-backdrop{
  position: fixed; inset: 0;
  display: none; align-items: center; justify-content: center;
  background: rgba(0,0,0,.55);
  z-index: 9999;
}
.modal-backdrop.show{ display: flex; }

.modal{
  width: min(520px, calc(100vw - 28px));
  background: rgba(12,18,38,.92);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px;
  box-shadow: 0 18px 60px rgba(0,0,0,.55);
  padding: 16px 16px 14px;
  color: #e8ecff;
}

.modal-hd{ display:flex; gap:12px; align-items:flex-start; }
.modal-ic{
  width: 38px; height: 38px; border-radius: 12px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(255,80,120,.14);
  border: 1px solid rgba(255,80,120,.25);
  flex: 0 0 auto;
}
.modal-title{ font-weight: 800; font-size: 16px; letter-spacing:.2px; }
.modal-sub{ font-size: 13px; opacity:.9; margin-top:2px; line-height:1.35; }

.modal-body{ margin: 14px 0 10px; }
.modal-check{ display:flex; gap:10px; align-items:flex-start; font-size: 13px; opacity:.95; }
.modal-check input{ margin-top: 2px; transform: scale(1.05); }

.modal-actions{ display:flex; justify-content:flex-end; gap:10px; margin-top: 8px; }

/*termina aqui ----------------------------------------------------------------------------------*/