/* Lesson-owned lane reservation only; canonical BASIC mechanics stay with Shell. */
.tnet21-frame{max-width:1296px}
.tnet21-main{max-width:680px}
.tnet21-right{width:300px}
@media(min-width:1101px){.tnet21-frame--right{grid-template-columns:220px minmax(0,680px) 300px}}
@media(max-width:1100px){.tnet21-right{display:none}}