:root {
  --fondo: #0e1116;
  --panel: #171b22;
  --linea: #262c36;
  --texto: #e6e9ef;
  --sutil: #8b95a5;
  --acento: #4ade80;
  --curso: #fbbf24;
  --error: #f87171;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--fondo); color: var(--texto);
  font: 16px/1.55 -apple-system, "Segoe UI", Roboto, system-ui, sans-serif;
}
.barra {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 20px; border-bottom: 1px solid var(--linea);
}
.marca { color: var(--texto); text-decoration: none; font-weight: 700; letter-spacing: .04em; }
.barra nav { display: flex; gap: 16px; align-items: center; font-size: 14px; }
.barra a { color: var(--sutil); text-decoration: none; }
.barra a:hover { color: var(--texto); }
.quien { color: var(--sutil); }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
.centro { min-height: 70vh; display: grid; place-items: center; }
.tarjeta {
  background: var(--panel); border: 1px solid var(--linea);
  border-radius: 14px; padding: 22px; margin-bottom: 20px;
}
.estrecha { width: min(380px, 92vw); }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0 0 12px; }
label { display: block; margin: 14px 0 0; font-size: 13px; color: var(--sutil); }
input, textarea, select {
  width: 100%; margin-top: 6px; padding: 11px 12px;
  background: #0f1319; color: var(--texto);
  border: 1px solid var(--linea); border-radius: 9px; font: inherit; font-size: 15px;
}
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid #2f6f4a; border-color: transparent; }
.fila { display: flex; gap: 12px; flex-wrap: wrap; }
.fila label { flex: 1 1 150px; }
button, .boton {
  margin-top: 18px; padding: 11px 18px; border: 0; border-radius: 9px;
  background: var(--acento); color: #06210f; font: inherit; font-weight: 650;
  cursor: pointer; display: inline-block; text-decoration: none;
}
button:hover, .boton:hover { filter: brightness(1.08); }
.sutil { color: var(--sutil); font-size: 14px; }
.tema { white-space: pre-wrap; border-left: 2px solid var(--linea); padding-left: 12px; margin-top: 16px; }
.volver { color: var(--sutil); text-decoration: none; font-size: 14px; }
.lista { list-style: none; padding: 0; margin: 0; }
.lista li { padding: 12px 0; border-top: 1px solid var(--linea); }
.lista li a { display: flex; justify-content: space-between; gap: 10px; align-items: center;
  color: var(--texto); text-decoration: none; font-weight: 550; }
.lista li a:hover .tit { text-decoration: underline; }
.pastilla { font-size: 12px; padding: 3px 9px; border-radius: 20px; white-space: nowrap;
  background: var(--linea); color: var(--sutil); }
.pastilla.hecho { background: #123021; color: var(--acento); }
.pastilla.curso { background: #33280a; color: var(--curso); }
.pastilla.error { background: #3a1717; color: var(--error); }
.pastilla.espera { background: #1d2430; color: #9db4d0; }
.barra-progreso { height: 6px; background: #0f1319; border-radius: 4px; overflow: hidden; margin: 14px 0; }
.barra-progreso div { height: 100%; background: var(--acento); transition: width .4s ease; }
.registro {
  background: #0b0e13; border: 1px solid var(--linea); border-radius: 9px;
  padding: 12px; max-height: 320px; overflow: auto;
  font: 12.5px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #b9c2d0; white-space: pre-wrap; margin: 0;
}
.aviso.error { background: #3a1717; color: #fca5a5; padding: 9px 12px; border-radius: 8px; font-size: 14px; }