#principal-messages-view{padding-bottom:.5rem}#principal-messages-view .pr-wa-shell{display:grid;grid-template-columns:minmax(260px,340px) 1fr;min-height:calc(100vh - 6.5rem);max-height:calc(100vh - 5rem);border-radius:1rem;overflow:hidden;border:1px solid #94a3b8;background:#e2e8f0;box-shadow:0 12px 32px #0f172a1a}#principal-messages-view .pr-wa-rail{display:flex;flex-direction:column;min-height:0;background:#fff;border-right:1px solid #cbd5e1}#principal-messages-view .pr-wa-rail-top{padding:1rem 1rem .65rem;background:linear-gradient(180deg,#f8fafc,#fff);border-bottom:1px solid #e2e8f0}#principal-messages-view .pr-wa-rail-top h2{margin:0;font-size:1.05rem;font-weight:900;color:#0f172a}#principal-messages-view .pr-wa-rail-top p{margin:.2rem 0 0;font-size:.68rem;color:#64748b;font-weight:600}#principal-messages-view .pr-wa-tabs{display:flex;gap:.35rem;padding:.55rem .75rem 0}#principal-messages-view .pr-wa-tab{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:.35rem;border:1px solid #e2e8f0;background:#f8fafc;color:#475569;font-size:.68rem;font-weight:800;padding:.45rem .4rem;border-radius:.55rem;cursor:pointer}#principal-messages-view .pr-wa-tab.is-active{background:#64748b;border-color:#64748b;color:#fff}#principal-messages-view .pr-wa-toolbar{display:flex;gap:.4rem;padding:.55rem .75rem;align-items:center}#principal-messages-view .pr-wa-search{flex:1;display:flex;align-items:center;gap:.45rem;border:1px solid #e2e8f0;border-radius:.65rem;padding:.4rem .6rem;background:#f8fafc;color:#64748b}#principal-messages-view .pr-wa-search input{flex:1;border:none;background:transparent;font-size:.75rem;color:#0f172a;outline:none}#principal-messages-view .pr-wa-bulk{width:2.25rem;height:2.25rem;border:1px solid #cbd5e1;border-radius:.65rem;background:#fff;color:#0284c7;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}#principal-messages-view .pr-wa-bulk:hover{background:#f0f9ff}#principal-messages-view .pr-wa-list{flex:1;overflow-y:auto;padding:.25rem .45rem .75rem}#principal-messages-view .pr-wa-row{width:100%;display:grid;grid-template-columns:2.65rem 1fr auto;gap:.55rem;align-items:center;text-align:left;border:none;background:transparent;padding:.55rem .45rem;border-radius:.75rem;cursor:pointer}#principal-messages-view .pr-wa-row:hover{background:#f1f5f9}#principal-messages-view .pr-wa-row.is-active{background:#e0f2fe}#principal-messages-view .pr-wa-row-text strong{display:block;font-size:.78rem;color:#0f172a;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#principal-messages-view .pr-wa-row-text span{display:block;font-size:.66rem;color:#64748b;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#principal-messages-view .pr-wa-avatar,#principal-messages-view .pr-wa-peer-avatar{width:2.65rem;height:2.65rem;border-radius:999px;background:#64748b;color:#fff;font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center;overflow:hidden;flex-shrink:0}#principal-messages-view .pr-wa-avatar.has-photo img,#principal-messages-view .pr-wa-peer-avatar-inner.has-photo img{width:100%;height:100%;object-fit:cover}#principal-messages-view .pr-wa-unread{min-width:1.15rem;height:1.15rem;padding:0 .3rem;border-radius:999px;background:#0284c7;color:#fff;font-size:.62rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center}#principal-messages-view .pr-wa-stage{display:flex;flex-direction:column;min-height:0;background:#e2e8f0}#principal-messages-view .pr-wa-stage-head{padding:.65rem 1rem;background:#64748b;color:#fff;border-bottom:1px solid #475569}#principal-messages-view .pr-wa-peer{display:flex;align-items:center;gap:.65rem;min-width:0}#principal-messages-view .pr-wa-peer-text{min-width:0}#principal-messages-view .pr-wa-peer-text strong{display:block;font-size:.88rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#principal-messages-view .pr-wa-peer-text span{display:block;font-size:.68rem;opacity:.88;font-weight:600}#principal-messages-view .pr-wa-thread{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.45rem;background:linear-gradient(180deg,#e2e8f0,#f1f5f9)}#principal-messages-view .pr-wa-bubble{max-width:78%;padding:.55rem .75rem;border-radius:.75rem;font-size:.78rem;line-height:1.35;word-break:break-word;box-shadow:0 1px 2px #0f172a0f}#principal-messages-view .pr-wa-bubble.is-mine{align-self:flex-end;background:#dbeafe;color:#0f172a;border-bottom-right-radius:.2rem}#principal-messages-view .pr-wa-bubble.is-theirs{align-self:flex-start;background:#fff;color:#0f172a;border:1px solid #cbd5e1;border-bottom-left-radius:.2rem}#principal-messages-view .pr-wa-bubble em{display:block;font-style:normal;font-size:.6rem;color:#64748b;margin-top:.25rem}#principal-messages-view .pr-wa-composer{display:flex;gap:.45rem;padding:.65rem .75rem;background:#f8fafc;border-top:1px solid #cbd5e1}#principal-messages-view .pr-wa-composer input{flex:1;border:1px solid #cbd5e1;border-radius:999px;padding:.55rem .85rem;font-size:.78rem;background:#fff}#principal-messages-view .pr-wa-send{width:2.5rem;height:2.5rem;border:none;border-radius:999px;background:#0284c7;color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}#principal-messages-view .pr-wa-send:disabled{opacity:.45;cursor:not-allowed}#principal-messages-view .pr-wa-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#64748b;font-size:.8rem;padding:2rem;text-align:center;gap:.65rem}#principal-messages-view .pr-wa-empty--rail,#principal-messages-view .pr-wa-empty--thread{flex:none;padding:1.5rem}#principal-messages-view .pr-wa-empty-icon{width:3rem;height:3rem;border-radius:999px;background:#fff;border:1px solid #cbd5e1;display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#94a3b8}#teacher-panel.is-ghost-mode #nav-messages-view,#teacher-panel.is-ghost-mode #nav-principal-messages-view{display:none!important}@media (max-width: 768px){#principal-messages-view .pr-wa-shell{grid-template-columns:1fr}#principal-messages-view .pr-wa-rail.is-collapsed{display:none}}