.fade-in{
    animation:fadeIn .24s ease-out both;
}
@keyframes fadeIn{
    from{opacity:0; transform:translateY(6px)}
    to{opacity:1; transform:translateY(0)}
}

.card{
    background:rgba(255,255,255,.85);
    border:1px solid var(--border);
    border-radius:var(--radius2);
    box-shadow:var(--shadow);
}

.h1{
    font-size:44px;
    line-height:1.05;
    letter-spacing:-.03em;
    margin:0;
}
.sub{
    margin:10px 0 0 0;
    color:var(--muted);
    font-size:15px;
}

.btn{
    border:none;
    border-radius:14px;
    padding:12px 16px;
    font-weight:650;
    cursor:pointer;
    transition:transform .15s ease, box-shadow .15s ease, background .15s ease, opacity .15s ease;
    user-select:none;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
    background:linear-gradient(180deg, var(--primary), var(--primary2));
    color:#fff;
    box-shadow:0 12px 30px rgba(37,99,235,.25);
}
.btn-primary:hover{box-shadow:0 14px 36px rgba(37,99,235,.30)}
.btn-ghost{
    background:transparent;
    border:1px solid var(--border);
    color:var(--text);
}
.btn-ghost:hover{background:rgba(15,23,42,.04)}
.btn-danger{
    background:rgba(239,68,68,.10);
    border:1px solid rgba(239,68,68,.20);
    color:#b91c1c;
}
.btn-danger:hover{background:rgba(239,68,68,.14)}

.field{
    width:100%;
    border:1px solid var(--border);
    background:rgba(255,255,255,.90);
    border-radius:14px;
    padding:12px 12px;
    outline:none;
    transition:box-shadow .15s ease, border-color .15s ease, transform .15s ease;
}
.field:focus{
    border-color:rgba(37,99,235,.35);
    box-shadow:var(--ring);
}

.kbd{
    font-family:var(--mono);
    font-size:12px;
    color:var(--muted);
}

.badge{
    font-size:12px;
    color:var(--muted);
}

.hr{
    height:1px;
    background:var(--border);
    width:100%;
}

.sidebar-head{
    padding:18px 16px 12px 16px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
}
.brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    letter-spacing:-.02em;
}
.logo{
    width:30px;
    height:30px;
    border-radius:12px;
    background:linear-gradient(180deg, rgba(37,99,235,.95), rgba(29,78,216,.95));
    box-shadow:0 12px 30px rgba(37,99,235,.22);
}
.sidebar-actions{
    display:flex;
    gap:10px;
    padding:0 16px 14px 16px;
}
.sidebar-list{
    padding:0 10px 12px 10px;
    overflow:auto;
    flex:1;
}
.chat-item{
    width:100%;
    text-align:left;
    border:1px solid transparent;
    background:transparent;
    padding:10px 10px;
    border-radius:14px;
    cursor:pointer;
    display:flex;
    justify-content:space-between;
    gap:10px;
    transition:background .15s ease, transform .15s ease, border-color .15s ease;
}
.chat-item:hover{
    background:rgba(15,23,42,.04);
}
.chat-item:active{transform:translateY(1px)}
.chat-item.active{
    background:rgba(37,99,235,.10);
    border-color:rgba(37,99,235,.20);
}
.chat-item .id{
    font-family:var(--mono);
    font-size:12px;
    color:var(--muted);
}
.chat-item.active .id{color:rgba(29,78,216,.85)}

.msg{
    max-width:760px;
    padding:14px 14px;
    border-radius:18px;
    border:1px solid var(--border);
    background:rgba(255,255,255,.88);
    box-shadow:0 10px 24px rgba(2,6,23,.06);
    white-space:pre-wrap;
    line-height:1.45;
    margin:0 0 12px 0;
    transform-origin:top left;
}
.msg.user{
    margin-left:auto;
    background:linear-gradient(180deg, rgba(37,99,235,.12), rgba(37,99,235,.08));
    border-color:rgba(37,99,235,.18);
}
.msg.assistant{
    margin-right:auto;
}

.composer{
    display:flex;
    gap:6px;
    align-items:flex-end;

    padding:4px 6px;

    border:1px solid var(--border);
    border-radius:14px;
    background:#fff;
    box-shadow:none;

    transition:border-color .18s ease;
}

.composer:focus-within{
    border-color:rgba(37,99,235,.22);
    box-shadow:0 14px 34px rgba(37,99,235,.10);
}

.icon-btn{
    width:44px;
    height:44px;
    border-radius:14px;
    border:1px solid var(--border);
    background:rgba(255,255,255,.90);
    cursor:pointer;
    display:grid;
    place-items:center;
    transition:transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.icon-btn:hover{background:rgba(15,23,42,.04)}
.icon-btn:active{transform:translateY(1px)}
.icon{
    width:18px;
    height:18px;
    display:block;
}

.send-btn{
    width:52px;
    height:44px;
    border-radius:14px;
    border:none;
    cursor:pointer;
    color:#fff;
    background:linear-gradient(180deg, var(--primary), var(--primary2));
    box-shadow:0 12px 28px rgba(37,99,235,.22);
    transition:transform .15s ease, box-shadow .15s ease, opacity .15s ease;
    display:grid;
    place-items:center;
}
.send-btn:hover{box-shadow:0 14px 34px rgba(37,99,235,.28)}
.send-btn:active{transform:translateY(1px)}
.send-btn:disabled{opacity:.45; cursor:not-allowed; box-shadow:none}

.textarea{
    flex:1;

    min-height:32px;
    max-height:160px;

    resize:none;
    padding:6px 6px;

    border:none;
    outline:none;
    background:transparent;
    line-height:1.35;
}


.file-chip-row{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:10px;
}
.file-chip{
    padding:8px 10px;
    border-radius:999px;
    border:1px solid var(--border);
    background:rgba(255,255,255,.86);
    display:flex;
    gap:8px;
    align-items:center;
    font-size:13px;
    color:var(--muted);
    animation:fadeIn .18s ease-out both;
}
.file-chip b{
    color:var(--text);
    font-weight:650;
}
.file-chip button{
    border:none;
    background:transparent;
    cursor:pointer;
    font-size:16px;
    line-height:1;
    color:var(--muted);
}
.file-chip button:hover{color:var(--text)}

.toast{
    position:fixed;
    left:50%;
    bottom:18px;
    transform:translateX(-50%);
    background:rgba(15,23,42,.92);
    color:#fff;
    padding:10px 14px;
    border-radius:999px;
    font-size:13px;
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease, transform .18s ease;
}
.toast.show{
    opacity:1;
    transform:translateX(-50%) translateY(-6px);
}

.newchat-btn{
    display:flex;
    align-items:center;
    gap:10px;
    width:100%;
    padding:8px 12px;
    border-radius:12px;
    border:none;
    background:transparent;
    color:var(--text);
    font-weight:600;
    cursor:pointer;
    transition:background .12s ease;
}

.newchat-btn:hover{
    background:rgba(15,23,42,.04);
}

.newchat-btn:active{
    background:rgba(15,23,42,.06);
}

.newchat-btn:focus,
.newchat-btn:focus-visible{
    outline:none;
    box-shadow:none;
}

.newchat-plus{
    width:22px;
    height:22px;
    border-radius:50%;
    background:rgba(15,23,42,.08);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:16px;
    line-height:1;
    color:var(--text);
    flex-shrink:0;
}

.newchat-text{
    font-size:14px;
}

.sidebar-footer{
    margin-top:auto;
    padding:10px;
    position:relative;
}

.sidebar-user{
    width:100%;
    display:flex;
    align-items:center;
    gap:10px;
    padding:10px;
    border-radius:14px;
    border:1px solid var(--border);
    background:rgba(255,255,255,.90);
    cursor:pointer;
}
.sidebar-user:hover{
    background:rgba(15,23,42,.04);
}

.user-avatar{
    width:32px;
    height:32px;
    border-radius:50%;
    background:rgba(15,23,42,.08);
    display:flex;
    align-items:center;
    justify-content:center;
    font-weight:800;
}
.user-meta{
    flex:1;
    min-width:0;
}
.user-name{
    font-size:13px;
    font-weight:800;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}
.user-sub{
    font-size:11px;
    color:var(--muted);
}
.user-caret{
    opacity:.6;
}

.sidebar-menu{
    position:absolute;
    left:10px;
    right:10px;
    bottom:64px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:14px;
    box-shadow:var(--shadow);
    padding:6px;
    display:none;
}
.sidebar-menu.open{
    display:block;
}

.menu-item{
    width:100%;
    text-align:left;
    padding:10px;
    border-radius:10px;
    border:none;
    background:transparent;
    cursor:pointer;
    font-weight:700;
}
.menu-item:hover{
    background:rgba(15,23,42,.05);
}
.menu-item.danger{
    color:#b91c1c;
}

.menu-sep{
    height:1px;
    background:var(--border);
    margin:6px;
}

.topbar-left{
    display:flex;
    align-items:center;
    gap:12px;
}
.topbar-right{
    display:flex;
    align-items:center;
    gap:12px;
}

.analysis-dropdown{ position:relative; }

.analysis-btn{
    display:flex;
    align-items:center;
    gap:10px;
    padding:8px 12px;
    border:1px solid var(--border);
    border-radius:999px;
    background:#fff;
    cursor:pointer;
    font-size:13px;
    box-shadow:var(--shadow);
}

.analysis-title{ color:var(--muted); font-size:12px; }
.analysis-value{ color:var(--text); font-weight:600; }
.analysis-caret{ color:var(--muted); }

.analysis-menu{
    position:absolute;
    top:44px;
    left:0;
    min-width:220px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:14px;
    padding:6px;
    box-shadow:var(--shadow2);
    z-index:100;
}

.analysis-item{
    width:100%;
    text-align:left;
    border:none;
    background:transparent;
    padding:10px 10px;
    border-radius:10px;
    cursor:pointer;
    font-size:13px;
    color:var(--text);
}
.analysis-item:hover{ background:rgba(15,23,42,.06); }
.analysis-item.active{ background:rgba(37,99,235,.12); }
.hidden{ display:none !important; }

.pdmd-tabs{
    display:inline-flex;
    gap:8px;
}

.pdmd-btn{
    padding:6px 12px;
    border-radius:999px;
    border:1px solid rgba(0,0,0,.12);
    background:#fff;
    cursor:pointer;
    font-size:13px;
    line-height:1;
}

.pdmd-btn.pdmd-on{
    background:#eef2ff;
    border-color:#c7d2fe;
}

.pdmd-ovl{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,.18);
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease;
    z-index:9998;
}

.pdmd-ovl.pdmd-open{
    opacity:1;
    pointer-events:auto;
}

.pdmd-pan{
    position:fixed;
    top:0;
    right:0;
    width:50vw;
    max-width:720px;
    min-width:360px;
    height:100vh;
    background:#fff;
    box-shadow:-12px 0 30px rgba(0,0,0,.18);
    transform:translateX(100%);
    transition:transform .22s ease;
    z-index:9999;
    display:flex;
    flex-direction:column;
}

.pdmd-pan.pdmd-open{
    transform:translateX(0);
}

.pdmd-hd{
    padding:14px 16px;
    border-bottom:1px solid rgba(0,0,0,.08);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
}

.pdmd-ttl{
    font-weight:600;
}

.pdmd-x{
    border:none;
    background:transparent;
    font-size:18px;
    cursor:pointer;
}

.pdmd-bd{
    padding:16px;
    overflow:auto;
}
.pdmd-centerpos{
    position:absolute;
    left:50%;
    top:50%;
    transform:translate(-50%,-50%);
}

.pdmd-grid{
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(160px,1fr));
    gap:12px;
}

.pdmd-card{
    display:flex;
    flex-direction:column;
    gap:8px;
    padding:10px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,0.08);
    background:rgba(255,255,255,0.04);
    cursor:pointer;
    text-align:left;
}

.pdmd-card:hover{
    background:rgba(255,255,255,0.06);
}

.pdmd-img{
    width:100%;
    height:140px;
    object-fit:cover;
    border-radius:10px;
    display:block;
}

.pdmd-cap{
    font-size:12px;
    opacity:0.75;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}

.pd-lb-ovl{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.6);
    opacity:0;
    pointer-events:none;
    transition:opacity .12s ease;
    z-index:9998;
}

.pd-lb-box{
    position:fixed;
    inset:0;
    display:flex;
    align-items:center;
    justify-content:center;
    opacity:0;
    pointer-events:none;
    transition:opacity .12s ease;
    z-index:9999;
    padding:24px;
}

.pd-lb-open{
    opacity:1;
    pointer-events:auto;
}

.pd-lb-wrap{
    position:relative;
    max-width:min(1000px, 95vw);
    max-height:90vh;
}

.pd-lb-img{
    max-width:100%;
    max-height:90vh;
    border-radius:14px;
    display:block;
}

.pd-lb-x{
    position:absolute;
    top:-10px;
    right:-10px;
    width:34px;
    height:34px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,0.12);
    background:rgba(0,0,0,0.6);
    color:#fff;
    cursor:pointer;
}

.pdds-list{
    display:flex;
    flex-direction:column;
    gap:10px;
}

.pdds-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:10px 12px;
    border-radius:12px;
    border:1px solid rgba(255,255,255,0.08);
    background:rgba(255,255,255,0.04);
}

.pdds-name{
    min-width:0;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
    opacity:0.9;
}

.pdds-open{
    flex:0 0 auto;
    padding:8px 10px;
    border-radius:10px;
    border:1px solid rgba(255,255,255,0.12);
    text-decoration:none;
    color:inherit;
    background:rgba(255,255,255,0.06);
}