/* HurstBot — misma paleta que el gráfico de ciclos (chart.html) */
:root {
  --bg: #131722; --panel: #1e222d; --panel2: #232836; --line: #2a2e39;
  --text: #d1d4dc; --muted: #787b86; --acc: #2962ff; --acc2: #5b7cff;
  --up: #26a69a; --dn: #ef5350; --warn: #f0b90b;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--acc2); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--acc2); outline-offset: 2px; }
.num, td.r, .kpi b { font-variant-numeric: tabular-nums; }

/* barra superior */
header.top { display: flex; align-items: center; gap: 24px; padding: 10px 20px;
  background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.marca { font-weight: 700; letter-spacing: .02em; color: var(--text); font-size: 15px; }
.marca span { color: var(--acc2); }
header nav { display: flex; gap: 18px; flex: 1; }
header nav a { color: var(--muted); }
header nav a.on, header nav a:hover { color: var(--text); text-decoration: none; }
.usuario { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 13px; }

main { max-width: 1240px; margin: 0 auto; padding: 22px 20px 60px; display: grid; gap: 22px; }
h1 { font-size: 20px; margin: 0; font-weight: 600; text-wrap: balance; }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted);
  font-weight: 600; margin: 0 0 10px; }
.sub { color: var(--muted); font-size: 13px; }
.fila { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.entre { justify-content: space-between; }

/* avisos */
.aviso, .error { padding: 10px 14px; border-radius: 6px; border-left: 3px solid; }
.aviso { background: rgba(38,166,154,.1); border-color: var(--up); }
.error { background: rgba(239,83,80,.1); border-color: var(--dn); }

/* bloques */
section.bloque { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px; }
.caja { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--muted); font-weight: 500; font-size: 12px; padding: 6px 10px;
  border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
td.r, th.r { text-align: right; white-space: nowrap; }
td.motivo { color: var(--muted); font-size: 12.5px; max-width: 520px; }
tbody tr:hover { background: var(--panel2); }

/* estados */
.chip { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 600;
  border: 1px solid currentColor; white-space: nowrap; }
.chip.comprado { color: var(--up); } .chip.esperando { color: var(--muted); }
.chip.pausa { color: var(--warn); } .chip.papel { color: var(--acc2); }
.up { color: var(--up); } .dn { color: var(--dn); } .m { color: var(--muted); }

/* cifras clave del bot */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; }
.kpi span { display: block; color: var(--muted); font-size: 12px; }
.kpi b { display: block; font-size: 20px; font-weight: 600; margin-top: 2px; }
.kpi small { color: var(--muted); font-size: 12px; }

/* formularios */
form.vertical { display: grid; gap: 14px; max-width: 640px; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
input, select, textarea { background: var(--bg); color: var(--text); border: 1px solid var(--line);
  border-radius: 6px; padding: 8px 10px; font: inherit; }
input[type=radio], input[type=checkbox] { padding: 0; }
.opcion { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; align-items: start;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; color: var(--text); cursor: pointer; }
.opcion input { margin-top: 4px; }
.opcion small { grid-column: 2; color: var(--muted); font-size: 12.5px; }
.opcion:has(input:checked) { border-color: var(--acc); background: rgba(41,98,255,.07); }
button, .boton { background: var(--acc); color: #fff; border: 0; border-radius: 6px; padding: 8px 14px;
  font: inherit; font-weight: 600; cursor: pointer; display: inline-block; }
button:hover, .boton:hover { background: var(--acc2); text-decoration: none; }
button.sec, .boton.sec { background: transparent; color: var(--text); border: 1px solid var(--line); }
button.sec:hover { border-color: var(--muted); background: transparent; }
button.peligro { background: transparent; color: var(--dn); border: 1px solid var(--dn); }
button.peligro:hover { background: rgba(239,83,80,.12); }
.enlinea { display: inline; margin: 0; }
.dos { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 22px; }
.nota { color: var(--muted); font-size: 12.5px; }

/* acceso */
.acceso { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.acceso form { width: min(360px, 100%); background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 26px 24px; display: grid; gap: 14px; }
.acceso .marca { font-size: 20px; text-align: center; }

#curva { height: 260px; }
@media (max-width: 640px) { header nav { order: 3; flex-basis: 100%; } main { padding: 16px; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* explorar: gráfico con rueda de espera y progreso del estudio */
.marco-grafico { position: relative; height: 78vh; min-height: 480px; }
.marco-grafico iframe { width: 100%; height: 100%; border: 0; display: block; background: var(--bg); }
.cargando[hidden] { display: none; }
.cargando { position: absolute; inset: 0; display: flex; flex-direction: column; gap: 14px; align-items: center;
  justify-content: center; background: var(--bg); color: var(--muted); z-index: 2; text-align: center; padding: 20px; }
.rueda { width: 38px; height: 38px; border: 3px solid var(--line); border-top-color: var(--acc2); border-radius: 50%;
  animation: girar 0.9s linear infinite; }
@keyframes girar { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .rueda { animation-duration: 3s; } }
.progreso { height: 8px; background: var(--bg); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; margin-top: 10px; }
.progreso .barra { height: 100%; background: var(--acc); transition: width .6s; }
.elegir { display: grid; grid-template-columns: 160px 200px 1fr auto; gap: 12px; align-items: end; }
@media (max-width: 760px) { .elegir { grid-template-columns: 1fr; } }
[hidden] { display: none !important; }   /* que ninguna clase con display anule 'hidden' */
fieldset.grupo { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; }
fieldset.grupo legend { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
  font-weight: 600; margin-bottom: 8px; }
.boton.chico, button.chico { padding: 3px 10px; font-size: 12.5px; }