:root{
  --bg:#0b1220;--panel:#141d2e;--panel2:#1b2639;--line:#243044;--text:#e5eaf3;--muted:#8b98ad;
  --blue:#3b82f6;--red:#ef4444;--green:#22c55e;--purple:#a855f7;--orange:#f97316;--cyan:#06b6d4;--yellow:#eab308;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0}
.loading,.empty{color:var(--muted);padding:40px;text-align:center}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px;
  background:radial-gradient(900px 500px at 20% 0%,#16233b 0%,var(--bg) 60%)}
.login{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px}
.login .logo{width:52px;height:52px;border-radius:14px;background:var(--blue);display:grid;place-items:center;font-size:26px;margin-bottom:14px}
.login h1{font-size:22px;margin-bottom:4px}
.login p{color:var(--muted);margin:0 0 20px}
.login label{display:block;font-size:12px;color:var(--muted);margin:12px 0 5px}
.login input{width:100%;background:var(--panel2);border:1px solid var(--line);color:#fff;padding:11px 12px;border-radius:9px;font-size:14px}
.login button{width:100%;margin-top:18px;padding:11px;border-radius:9px;border:0;background:var(--blue);color:#fff;font-size:14px;font-weight:600;cursor:pointer}
.login .err{color:var(--red);font-size:13px;margin-top:12px;min-height:18px}
.pass-wrap{position:relative}
.pass-wrap input{padding-right:44px}
.eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:0;
  font-size:17px;cursor:pointer;padding:6px 8px;line-height:1}

/* ---------- Estructura ---------- */
.shell{display:flex;min-height:100vh}
.side{width:230px;background:#0e1626;border-right:1px solid var(--line);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow:auto}
.brand{display:flex;gap:10px;align-items:center;padding:16px 16px 10px}
.brand .logo{width:34px;height:34px;border-radius:9px;background:var(--blue);display:grid;place-items:center;font-size:18px}
.brand b{display:block;font-size:15px}.brand small{color:var(--muted)}
nav{display:flex;flex-direction:column;padding:8px;gap:1px}
nav a{padding:9px 12px;border-radius:8px;color:#c7d0de;text-decoration:none;font-size:13.5px}
nav a:hover{background:var(--panel2)}
nav a.active{background:var(--blue);color:#fff}
nav .sep{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.06em;padding:14px 12px 5px}
.side-foot{margin-top:auto;padding:14px 16px;color:var(--muted);font-size:12px}
.side-foot a{color:var(--muted);text-decoration:underline}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;border-bottom:1px solid var(--line);background:#0e1626;position:sticky;top:0;z-index:5}
.top-mid b{display:block}.top-mid small{color:var(--muted)}
.top-right{display:flex;gap:10px;align-items:center}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--purple);display:grid;place-items:center;font-weight:700;font-size:13px}
.burger{display:none;background:none;border:0;color:#fff;font-size:20px}
main{padding:16px 20px 60px}
.row-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 14px;flex-wrap:wrap}
.row-title h2{font-size:18px}
.mt{margin-top:14px}.mb{margin-bottom:10px}
.muted{color:var(--muted)}
.right{margin-left:auto}

/* ---------- Bloques ---------- */
.grid{display:grid;gap:14px}
.kpis{grid-template-columns:repeat(4,1fr)}
.kpis6{grid-template-columns:repeat(6,1fr)}
.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}
.g21{grid-template-columns:1.4fr 1fr}.g12{grid-template-columns:1fr 1.4fr}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;min-width:0}
.panel h3{font-size:14px;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px}
.panel h3 small{color:var(--muted);font-weight:400}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.kpi .l{color:var(--muted);font-size:12px;display:flex;gap:6px;align-items:center}
.kpi .v{font-size:22px;font-weight:700;margin:4px 0 2px}
.kpi .v small{font-size:12px;color:var(--muted);font-weight:400;margin-left:3px}
.d{font-size:12px}.d.good{color:var(--green)}.d.bad{color:var(--red)}.d.neutral{color:var(--muted)}
.chart{position:relative;height:230px}.chart.short{height:170px}.chart.tall{height:320px}
.bar{height:8px;border-radius:5px;background:var(--panel2);overflow:hidden;margin-top:8px}
.bar i{display:block;height:100%;background:var(--blue)}
.bar.green i{background:var(--green)}.bar.orange i{background:var(--orange)}.bar.cyan i{background:var(--cyan)}
.ring{--p:0;--c:var(--blue);width:96px;height:96px;border-radius:50%;display:grid;place-items:center;
  background:conic-gradient(var(--c) calc(var(--p)*1%),var(--panel2) 0);position:relative}
.ring::after{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--panel)}
.ring b{position:relative;z-index:1;font-size:17px}
.rings{display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:space-around}
.ring-box{text-align:center}.ring-box small{display:block;color:var(--muted);margin-top:6px}

/* ---------- Tablas ---------- */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:7px 8px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:500;font-size:12px}
tr.row:hover{background:var(--panel2);cursor:pointer}
.num{text-align:right}
.tbl-wrap{overflow:auto}
td.act{text-align:right;white-space:nowrap}

/* ---------- Controles ---------- */
.btn{background:var(--panel2);border:1px solid var(--line);color:#c7d0de;padding:6px 11px;border-radius:8px;font-size:12.5px;cursor:pointer;font-family:inherit}
.btn:hover{filter:brightness(1.2)}
.btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn.danger{color:#fca5a5;border-color:#4c1d1d}
.btn.sm{padding:3px 8px;font-size:12px}
.btn.big{padding:10px 16px;font-size:14px}
.tabs{display:flex;gap:6px;flex-wrap:wrap}
.tabs button{background:var(--panel2);border:1px solid var(--line);color:#c7d0de;padding:5px 10px;border-radius:7px;font-size:12.5px;cursor:pointer}
.tabs button.on{background:var(--blue);color:#fff;border-color:var(--blue)}
input,select,textarea{background:var(--panel2);border:1px solid var(--line);color:#fff;padding:7px 9px;border-radius:8px;font-size:13px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:1px solid var(--blue)}
textarea{width:100%;min-height:64px;resize:vertical}
.field{display:flex;flex-direction:column;gap:4px;min-width:0}
.field label{font-size:11.5px;color:var(--muted)}
.field input,.field select{width:100%}
.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.form-grid.g2{grid-template-columns:1fr 1fr}
.form-grid.g4{grid-template-columns:repeat(4,1fr)}
.inline{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.chip{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;background:var(--panel2);color:#c7d0de}
.chip.ok{background:#14532d;color:#bbf7d0}.chip.warn{background:#713f12;color:#fde68a}
.chip.bad{background:#4c1d1d;color:#fecaca}.chip.blue{background:#1e3a8a;color:#bfdbfe}
.pill{border:1px solid var(--line);background:var(--panel2);color:#c7d0de;border-radius:999px;padding:4px 12px;font-size:12.5px;cursor:pointer}
.pill.on{background:var(--green);border-color:var(--green);color:#04210f;font-weight:600}
.switchrow{display:flex;gap:6px;flex-wrap:wrap}

/* ---------- Listas y tarjetas ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;cursor:pointer}
.card:hover{border-color:var(--blue)}
.card .h{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.card .h .avatar{background:var(--blue)}
.card b{font-size:14px}
.card .meta{color:var(--muted);font-size:12px}
.item{display:flex;gap:10px;align-items:center;padding:8px 6px;border-bottom:1px solid var(--line)}
.item:last-child{border-bottom:0}
.item .g{flex:1;min-width:0}
.item .g b{font-size:13.5px}
.item .g small{display:block;color:var(--muted);font-size:12px}
.slot-title{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em;margin:14px 0 4px}
.off-img{width:46px;height:46px;border-radius:8px;object-fit:contain;background:#fff1;flex:0 0 auto}
/* --- biblioteca visual de ejercicios --- */
/* --- modo entrenar --- */
.ses-barra{height:7px;border-radius:5px;background:var(--panel2);overflow:hidden;margin-bottom:6px}
.ses-barra i{display:block;height:100%;background:var(--green);transition:width .3s}
.ses-actual{border-color:var(--blue)}
.ses-ex{display:flex;gap:16px;align-items:flex-start}
.ses-ex img{width:120px;height:120px;border-radius:11px;object-fit:cover;background:#0d1524;flex:0 0 auto}
.ses-ex b{font-size:17px}
.sugerencia{background:#1e3a8a33;border:1px solid #1e3a8a;border-radius:8px;padding:6px 10px;
  margin-top:8px;font-size:12.5px;color:#bfdbfe}
.ses-campos{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.ses-campos input{font-size:19px;text-align:center;padding:11px 6px}
.descanso{margin-top:14px;text-align:center;border-color:var(--orange)}
.descanso .reloj{font-size:46px;font-weight:700;color:var(--orange);font-variant-numeric:tabular-nums}
.descanso .inline{justify-content:center}
tr.fila-actual{background:var(--panel2)}
.dia-cab{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:14px}
.dia-cab .slot-title{margin:0}
@media (max-width:820px){
  .ses-ex img{width:88px;height:88px}
  .ses-ex b{font-size:15.5px}
  .btn.big{padding:13px 18px;font-size:15px;flex:1}
}
.chips-row{display:flex;gap:6px;flex-wrap:wrap}
@media (max-width:820px){
  /* En el móvil, una sola fila que se desliza: se ven todos sin desplegables. */
  .chips-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .chips-row .pill{flex:0 0 auto}
}
.ex-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}
.ex-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;cursor:pointer}
.ex-card:hover{border-color:var(--blue)}
.ex-card img,.ex-noimg{width:100%;height:150px;object-fit:cover;display:block;background:#0d1524}
.ex-noimg{display:grid;place-items:center;font-size:34px}
.ex-card-body{padding:9px 11px}
.ex-card-body b{font-size:13px;display:block;line-height:1.25}
.ex-card-body small{color:var(--muted);font-size:11.5px}
.ex-thumb{width:46px;height:46px;border-radius:8px;object-fit:cover;background:#0d1524;flex:0 0 auto}
.ex-thumb.sin{display:grid;place-items:center;font-size:20px}
.ex-row{display:flex;gap:10px;align-items:center;cursor:pointer}
.ex-row:hover b{color:var(--blue)}
.ex-detail{display:flex;gap:16px;flex-wrap:wrap}
.ex-big{width:260px;height:260px;object-fit:cover;border-radius:12px;background:#0d1524}
.ex-big.sin{display:grid;place-items:center;font-size:54px}
.ex-meta{flex:1;min-width:180px;display:flex;flex-wrap:wrap;gap:6px;align-content:flex-start}
.ex-instr{white-space:pre-line;color:#c7d0de}
@media (max-width:820px){.ex-big{width:100%;height:auto;aspect-ratio:1}}
#off-video{width:100%;max-height:260px;border-radius:10px;background:#000}
.off-item{align-items:center}
.photos{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.photos figure{margin:0;background:var(--panel2);border-radius:10px;overflow:hidden}
.photos img{width:100%;height:190px;object-fit:cover;display:block}
.photos figcaption{padding:6px 8px;font-size:12px;color:var(--muted);display:flex;justify-content:space-between;align-items:center}

/* ---------- Modal y avisos ---------- */
.modal-back{position:fixed;inset:0;background:#000a;display:grid;place-items:center;z-index:50;padding:16px}
.modal-back[hidden]{display:none}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;width:100%;max-width:640px;max-height:88vh;overflow:auto}
.modal h3{font-size:16px;margin-bottom:14px}
.modal .foot{display:flex;gap:8px;justify-content:flex-end;margin-top:18px}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--panel2);border:1px solid var(--line);
  padding:10px 16px;border-radius:10px;z-index:60;font-size:13px}
.toast.err{border-color:var(--red);color:#fecaca}
.toast.ok{border-color:var(--green);color:#bbf7d0}

@media (max-width:1100px){.kpis,.kpis6{grid-template-columns:repeat(3,1fr)}.g3{grid-template-columns:1fr 1fr}.form-grid,.form-grid.g4{grid-template-columns:1fr 1fr}}
@media (max-width:820px){
  .side{position:fixed;left:-250px;z-index:20;transition:left .2s}.side.open{left:0}
  .burger{display:block}
  .kpis,.kpis6{grid-template-columns:repeat(2,1fr)}
  .g2,.g3,.g21,.g12{grid-template-columns:1fr}
  .form-grid,.form-grid.g2,.form-grid.g4{grid-template-columns:1fr 1fr}
  main{padding:12px 12px 70px}
}