/* Más superficie útil, manteniendo márgenes y adaptación real a cada pantalla. */
@media(min-width:1000px){
 header{max-width:1760px;padding-inline:clamp(28px,3vw,54px)}
 .wrap{max-width:1720px;width:94%;padding-inline:24px}
 .course-reading{max-width:1240px;width:100%;margin-inline:auto}
 #app:has(.course-reading) .course-discussion{max-width:1240px}
 .home-course-section>.grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
.course-reading{min-width:0}.course-reading img{max-width:100%}
.home-course-intro{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}
.home-course-intro .home-course-heading{margin:0;max-width:760px}
.home-course-search{flex:0 1 460px;min-width:280px;padding-bottom:5px}
.home-course-search label{display:block;font-weight:650;font-size:15px;margin-bottom:8px}
.home-search-row{display:flex;border:1px solid #bac8dc;border-radius:9px;overflow:hidden;background:#fff}
.home-search-row input{min-width:0;width:100%;border:0;padding:13px 15px;background:transparent;color:#18243d}
.home-search-row input:focus-visible{outline:2px solid #2851cc;outline-offset:-3px}
.home-search-row button{flex-shrink:0;border:0;border-left:1px solid #d6deea;padding:11px 16px;background:#193dbe;color:#fff;font-weight:650;cursor:pointer}
.home-search-row button:hover{background:#102e9d}.home-search-status{display:block;font-size:13px;color:#657087;margin-top:7px;min-height:1.5em}
.home-search-empty{padding:26px;border:1px solid #d7dfec;background:#f5f7fc;border-radius:10px;grid-column:1/-1}
.personal-selection-tools{max-width:min(690px,calc(100vw - 24px));gap:7px;padding:12px;box-shadow:0 8px 30px #12244226}
.personal-selection-tools label{display:flex;align-items:center;gap:6px;font-size:13px;color:#374963;font-weight:600}
.personal-selection-tools select{max-width:150px;border:1px solid #c8d3e3;border-radius:6px;padding:7px;background:#fff;color:#172e52;font-size:13px}
.personal-selection-tools button{min-height:34px}.personal-selection-tools button:hover{background:#edf2fc}
.personal-selection-tools [data-personal=clear]{border-color:#c8d3e3;background:#f2f5fa}
.personal-selection-tools [data-personal-close]{margin-left:auto}
.personal-mark{box-decoration-break:clone;-webkit-box-decoration-break:clone}
@media(max-width:999px){.home-course-intro{align-items:stretch;flex-direction:column;gap:18px}.home-course-search{flex-basis:auto;min-width:0;width:100%;max-width:600px}.wrap{padding-inline:24px}.course-reading{width:100%}}
@media(max-width:650px){.wrap{padding-inline:18px}.home-search-row button{padding-inline:13px}.personal-selection-tools{max-width:calc(100vw - 16px);gap:6px;padding:10px}.personal-selection-tools label{flex:1 1 45%;flex-wrap:wrap}.personal-selection-tools select{max-width:none;width:100%}}