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button{display:grid;justify-items:center;gap:3px;border:0;border-radius:10px;padding:4px;color:#718098;background:transparent;font-size:.98rem}.cm-footer button span{font-size:.55rem}.cm-footer button.is-active{color:#2f72ec;background:#eff5ff}.cm-desktop-art{display:none}@keyframes cmFade{from{opacity:0}to{opacity:1}}@keyframes cmRise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}@media(max-width:520px){.classmates{padding:0}.classmates__shell{width:100%;height:100vh;border:0;border-radius:0}}@media(min-width:900px){.classmates{padding:34px}.classmates__shell{width:min(1120px,calc(100% - 68px));height:min(820px,calc(100vh - 68px));grid-template-columns:42% 58%;grid-template-rows:84px minmax(0,1fr);border-radius:34px;background:linear-gradient(112deg,#edf4ff 0 42%,#fff 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/* Real classmates and private messages. */
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/* Opaque chat workspace: keep every message readable on desktop and mobile. */
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.cm-bubbles{padding:15px 0!important}
.cm-bubbles p{border:1px solid #edf1f7;color:#243a62!important;background:#f7f9fc!important;box-shadow:0 5px 12px rgba(33,54,94,.04);font-weight:600}
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.cm-composer{padding:10px 0 2px!important}.cm-composer input{border-color:#dfe8f5!important;background:#fff!important}
@media(max-width:520px){.cm-chat-screen{border-right:0!important;border-left:0!important;border-radius:0!important;box-shadow:none!important}}