.chatgpt-desktop-shell{
    height:calc(100vh - 130px);
    min-height:620px;
    display:flex;
    overflow:hidden;
    background:#f7f7f8;
    border:1px solid #e5e7eb;
    border-radius:18px;
    box-shadow:0 5px 25px rgba(0,0,0,.06);
}
.chatgpt-desktop-sidebar{
    width:250px;
    background:#202123;
    color:#fff;
    padding:14px;
    display:flex;
    flex-direction:column;
}
.chatgpt-new-chat{
    width:100%;
    border:1px solid #565869;
    background:transparent;
    color:#fff;
    border-radius:9px;
    padding:11px;
    text-align:right;
}
.chatgpt-history{
    margin-top:22px;
    flex:1;
    overflow-y:auto;
}
.chatgpt-history a{
    display:block;
    color:#ddd;
    text-decoration:none;
    padding:10px;
    border-radius:8px;
    font-size:13px;
}
.chatgpt-history a:hover{
    background:#2a2b32;
}
.chatgpt-desktop-main{
    flex:1;
    min-width:0;
    display:flex;
    flex-direction:column;
}
.chatgpt-desktop-header{
    height:65px;
    background:#fff;
    border-bottom:1px solid #e5e7eb;
    padding:0 22px;
    display:flex;
    align-items:center;
    justify-content:space-between;
}
.chatgpt-desktop-brand{
    display:flex;
    align-items:center;
    gap:12px;
}
.chatgpt-desktop-icon{
    width:42px;
    height:42px;
    border-radius:12px;
    background:#111827;
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
}
.chatgpt-desktop-messages{
    flex:1;
    overflow-y:auto;
    padding:35px 12%;
}
.chatgpt-desktop-welcome{
    text-align:center;
    max-width:700px;
    margin:80px auto;
}
.chatgpt-desktop-welcome-icon{
    width:72px;
    height:72px;
    border-radius:22px;
    background:#111827;
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:28px;
    margin:0 auto 20px;
}
.chatgpt-desktop-input-area{
    padding:15px 12%;
    background:linear-gradient(transparent,#f7f7f8 25%);
}
.chatgpt-desktop-input-box{
    max-width:850px;
    margin:auto;
    background:#fff;
    border:1px solid #d1d5db;
    border-radius:17px;
    padding:8px;
    display:flex;
    align-items:flex-end;
    gap:8px;
    box-shadow:0 4px 15px rgba(0,0,0,.06);
}
.chatgpt-desktop-input-box textarea{
    flex:1;
    border:0!important;
    outline:0!important;
    box-shadow:none!important;
    resize:none;
    max-height:180px;
    line-height:1.8;
}
.chatgpt-desktop-send{
    width:42px;
    height:42px;
    min-width:42px;
    border:0;
    border-radius:11px;
    background:#111827;
    color:#fff;
}
.chatgpt-desktop-send:disabled{
    opacity:.35;
}
.chatgpt-desktop-disclaimer{
    text-align:center;
    color:#9ca3af;
    font-size:10px;
    margin-top:8px;
}
@media(max-width:900px){
    .chatgpt-desktop-sidebar{
        display:none;
    }
    .chatgpt-desktop-messages,
    .chatgpt-desktop-input-area{
        padding-left:6%;
        padding-right:6%;
    }
}