:root {
  --bg: #111315; --panel: #1a1d20; --panel2: #22262a; --border: #2e3338;
  --text: #e8e6e1; --dim: #9a958c; --accent: #d9a441; --accent2: #7fb069;
  --err: #d06060; --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, sans-serif; background: var(--bg); color: var(--text); height: 100vh; display: flex; flex-direction: column; }
header { display: flex; align-items: center; gap: 16px; padding: 10px 18px; border-bottom: 1px solid var(--border); background: var(--panel); }
header h1 { font-size: 16px; margin: 0; color: var(--accent); letter-spacing: .5px; }
header .spacer { flex: 1; }
header .stat { font-size: 12px; color: var(--dim); }
main { flex: 1; display: grid; grid-template-columns: 240px 260px 1fr; min-height: 0; }
.col { border-right: 1px solid var(--border); overflow-y: auto; }
.col h2 { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--dim); padding: 12px 14px 6px; margin: 0; }
.item { padding: 8px 14px; cursor: pointer; border-left: 3px solid transparent; display: flex; align-items: center; gap: 10px; }
.item:hover { background: var(--panel2); }
.item.sel { background: var(--panel2); border-left-color: var(--accent); }
.item .name { font-weight: 600; }
.item .sub { font-size: 12px; color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item .txt { min-width: 0; }
.avatar { width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0; object-fit: cover; background: var(--panel2); }
.avatar.lg { width: 56px; height: 56px; }
.newconv { margin: 8px 14px; padding: 7px; width: calc(100% - 28px); background: var(--panel2); color: var(--text); border: 1px dashed var(--border); border-radius: var(--radius); cursor: pointer; }
.newconv:hover { border-color: var(--accent); color: var(--accent); }
#chat { display: flex; flex-direction: column; min-width: 0; }
#chatHead { display: flex; align-items: center; gap: 10px; padding: 8px 18px; border-bottom: 1px solid var(--border); background: var(--panel); min-height: 44px; }
#chatHead .name { font-weight: 700; }
#chatHead .role { font-size: 12px; color: var(--dim); }
#messages { flex: 1; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: 78%; padding: 10px 14px; border-radius: var(--radius); white-space: pre-wrap; overflow-wrap: break-word; }
.msg.user { align-self: flex-end; background: #33414d; }
.msg.user.other { align-self: flex-start; background: #3d3348; }
.msg .author { display: block; font-size: 11px; font-weight: 700; color: var(--accent); margin-bottom: 2px; }
.msg.agent { align-self: flex-start; background: var(--panel2); }
.msg.meta { align-self: center; background: none; color: var(--dim); font-size: 12px; padding: 2px; }
.msg.err { align-self: center; background: #3a2222; color: var(--err); font-size: 13px; }
.msg .att { display: block; font-size: 12px; color: var(--accent); margin-top: 4px; }
.tool { align-self: flex-start; font-size: 12px; color: var(--dim); border-left: 2px solid var(--accent2); padding: 2px 10px; }
#composer { display: flex; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--border); background: var(--panel); align-items: flex-end; }
#composer textarea { flex: 1; resize: none; background: var(--panel2); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); padding: 10px 12px; font: inherit; height: 46px; }
#composer button { background: var(--accent); border: 0; border-radius: var(--radius); padding: 11px 20px; font-weight: 700; cursor: pointer; }
#composer button:disabled { opacity: .4; cursor: default; }
#composer button.icon { background: var(--panel2); color: var(--text); border: 1px solid var(--border); padding: 11px 13px; }
#composer button.icon:hover { border-color: var(--accent); }
#composer button.icon.rec { background: #5a2626; border-color: var(--err); }
#attachBar { display: flex; gap: 8px; padding: 0 18px 6px; flex-wrap: wrap; }
#attachBar .chip { background: var(--panel2); border: 1px solid var(--border); border-radius: 20px; padding: 3px 12px; font-size: 12px; display: flex; gap: 8px; align-items: center; }
#attachBar .chip b { cursor: pointer; color: var(--err); }
.typing { color: var(--dim); font-size: 13px; padding: 0 18px 6px; min-height: 20px; }
/* right drawer */
#drawer { position: fixed; right: 0; top: 47px; bottom: 0; width: 460px; max-width: 92vw; background: var(--panel); border-left: 1px solid var(--border); transform: translateX(100%); transition: transform .15s; display: flex; flex-direction: column; }
#drawer.open { transform: none; }
#drawer .tabs { display: flex; border-bottom: 1px solid var(--border); }
#drawer .tabs button { flex: 1; background: none; border: 0; border-bottom: 2px solid transparent; color: var(--dim); padding: 10px; cursor: pointer; font: inherit; font-size: 13px; }
#drawer .tabs button.sel { color: var(--accent); border-bottom-color: var(--accent); }
#drawer .body { flex: 1; overflow-y: auto; padding: 14px; }
#drawer h3 { font-size: 12px; text-transform: uppercase; color: var(--dim); margin: 14px 0 6px; }
#drawer .kv { display: flex; justify-content: space-between; font-size: 13px; padding: 2px 0; gap: 10px; }
#drawer .kv span:last-child { color: var(--accent2); text-align: right; }
#drawer select { background: var(--panel2); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 4px 8px; font: inherit; font-size: 13px; }
#drawer .bar { height: 6px; background: var(--panel2); border-radius: 3px; overflow: hidden; margin: 4px 0 8px; }
#drawer .bar i { display: block; height: 100%; background: var(--accent); }
#defEditor { width: 100%; height: calc(100vh - 220px); background: var(--panel2); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; font: 13px/1.5 ui-monospace, monospace; resize: none; }
.rowbtns { display: flex; gap: 8px; margin-top: 8px; }
button.ghost { background: none; border: 1px solid var(--border); color: var(--dim); border-radius: var(--radius); padding: 5px 12px; cursor: pointer; font-size: 12px; }
button.ghost:hover { color: var(--accent); border-color: var(--accent); }
button.primary { background: var(--accent); border: 0; border-radius: var(--radius); padding: 6px 16px; font-weight: 700; cursor: pointer; font-size: 13px; }
/* file manager */
.fm-crumbs { font-size: 12px; color: var(--dim); margin-bottom: 8px; }
.fm-crumbs a { color: var(--accent); cursor: pointer; }
.fm-row { display: flex; align-items: center; gap: 8px; padding: 5px 6px; border-radius: 6px; font-size: 13px; cursor: pointer; }
.fm-row:hover { background: var(--panel2); }
.fm-row .sz { margin-left: auto; color: var(--dim); font-size: 11px; }
.fm-row .del { color: var(--err); cursor: pointer; visibility: hidden; padding: 0 4px; }
.fm-row:hover .del { visibility: visible; }
#login { position: fixed; inset: 0; background: var(--bg); display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 14px; }
#login input { width: 340px; padding: 12px; background: var(--panel2); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font: inherit; }
#login button { padding: 10px 30px; background: var(--accent); border: 0; border-radius: var(--radius); font-weight: 700; cursor: pointer; }
.hidden { display: none !important; }