/* Beitrag "Subjektive Belastung im Ausdauersport" – schwarzer TIPP-Kasten (Original: alignwide-Spalte
   1340px, #111, 6px Radius, Trennlinie) + Quellen. Prefix: .sbj- */

.prose .sbj-tipp {
  --bw: min(1340px, calc(100vw - 2 * var(--gutter)));
  width: var(--bw);
  margin: 3em 0 0 calc(50% - var(--bw) / 2);
  padding: 50px;
  background: #111; color: #fff;
  border: 1px solid rgba(255, 255, 255, .2); border-radius: 6px;
}
.prose .sbj-tipp p { margin: 0; color: #fff; }
.prose .sbj-tipp__label { font-size: clamp(18px, 1rem + .3vw, 22px); line-height: 1.125; }
.prose .sbj-tipp__label strong { font-weight: 700; }
.prose .sbj-tipp hr { margin: 30px 0; border: 0; border-top: 1px solid rgba(255, 255, 255, .2); }
.prose .sbj-tipp__text { font-size: clamp(18px, 1rem + .3vw, 22px); font-weight: 600; line-height: 1.4; }
@media (max-width: 781px) { .prose .sbj-tipp { padding: 30px; } }

.prose .sbj-sources { margin-top: 3.4em; }
.prose .sbj-sources + p { margin-top: .6em; }
.prose .sbj-sources + p + p { margin-top: 0; }