:root{--bg:#0d1117;--panel:#161b22;--border:#30363d;--fg:#e6edf3;--dim:#8b949e;--acc:#1f6feb;--acc2:#0a84ff;--ok:#3fb950;--warn:#d29922;--err:#f85149}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:'Segoe UI',system-ui,Arial,sans-serif;font-size:14px;display:flex;min-height:100vh}

/* sidebar */
.side{width:230px;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{font-weight:700;letter-spacing:1px;font-size:17px;padding:18px 18px 14px}
.brand span{color:var(--acc2)}
.side nav{display:flex;flex-direction:column;padding:0 10px;flex:1;overflow:auto}
.navgroup{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--dim);padding:14px 10px 6px}
.nav{background:none;border:none;color:var(--dim);padding:9px 12px;cursor:pointer;border-radius:6px;font-size:14px;text-align:left;width:100%}
.nav:hover{color:var(--fg);background:#21262d}
.nav.active{color:#fff;background:var(--acc)}
.sidefoot{padding:12px 16px;border-top:1px solid var(--border);color:var(--dim);font-size:12px}

main{flex:1;padding:26px 30px;max-width:1200px}
.ptitle{margin:0 0 18px;font-size:22px;font-weight:600}
.tab{display:none}
.tab.active{display:block}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:20px;text-align:center}
.cnum{font-size:32px;font-weight:700;color:var(--acc2)}
.clbl{color:var(--dim);font-size:13px;margin-top:4px}

/* panels */
.panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:18px;margin-bottom:16px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
h3{margin:0 0 12px;font-size:15px}
h4{margin:0 0 8px;font-size:13px;color:var(--dim)}
.hint{color:var(--dim);font-size:13px;margin:0 0 12px;line-height:1.5}
.qs{color:var(--fg);font-size:14px;line-height:2;padding-left:18px;margin:0}
.qs b{color:var(--acc2)}

input,textarea,select{width:100%;background:#0d1117;border:1px solid var(--border);color:var(--fg);border-radius:6px;padding:9px 11px;margin-bottom:10px;font-family:inherit;font-size:13px}
.bar{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap;align-items:center}
.bar input,.bar select{width:auto;flex:0 1 280px;margin-bottom:0}
.btn{background:var(--acc);color:#fff;border:none;border-radius:6px;padding:9px 16px;cursor:pointer;font-size:13px;font-weight:600}
.btn:hover{background:#388bfd}
.btn.primary{background:var(--acc)}
.btn.mini{padding:4px 10px;font-size:11px}

.list{list-style:none;margin:12px 0 0;padding:0;max-height:56vh;overflow:auto}
.list li{padding:9px 12px;border:1px solid var(--border);border-radius:6px;margin-bottom:6px;cursor:pointer;background:#0d1117}
.list li:hover{border-color:var(--acc)}
.list li .sub{color:var(--dim);font-size:12px}
.detail{background:#0d1117;border:1px solid var(--border);border-radius:6px;padding:14px;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,Consolas,monospace;font-size:12px;min-height:80px;max-height:60vh;overflow:auto}
.detail:empty::before{content:"—";color:var(--dim)}
.kv{display:grid;grid-template-columns:150px 1fr;gap:6px 14px;font-size:13px}
.kv div:nth-child(odd){color:var(--dim)}
.badge{display:inline-block;padding:1px 8px;border-radius:10px;font-size:11px;margin-left:6px}
.badge.ok{background:rgba(63,185,80,.15);color:var(--ok)}
.badge.warn{background:rgba(210,153,34,.15);color:var(--warn)}
.ingest{margin-bottom:14px}

/* Outlook clone — faithful OWA replica (light theme, MS geometry) */
.owaX{background:#fff;border:1px solid #e1dfdd;border-radius:8px;overflow:hidden;
  height:calc(100vh - 190px);min-height:480px;display:flex;flex-direction:column;
  font-family:"Segoe UI","Segoe UI Web (West European)",-apple-system,BlinkMacSystemFont,Roboto,"Helvetica Neue",sans-serif;
  color:#252424;text-align:left}
/* top bar */
.owaX-top{display:flex;align-items:center;height:48px;padding:0 12px;border-bottom:1px solid #e1dfdd;gap:10px}
.owaX-waffle{font-size:18px;color:#252424;cursor:pointer;padding:6px 8px;border-radius:4px}
.owaX-waffle:hover{background:#f3f2f1}
.owaX-logo{font-size:17px;font-weight:600;color:#252424;margin-right:18px}
.owaX-search{flex:0 0 460px;display:flex;align-items:center;background:#f3f2f1;border-radius:4px;height:32px;padding:0 4px 0 12px}
.owaX-search input{flex:1;border:none;background:transparent;outline:none;font-size:14px;color:#252424}
.owaX-sbtn{border:none;background:transparent;cursor:pointer;font-size:14px;color:#605e5c;padding:4px 8px}
.owaX-topright{margin-left:auto;display:flex;align-items:center;gap:16px}
.owaX-ticon{color:#605e5c;cursor:pointer;font-size:15px}
.owaX-avatar{width:32px;height:32px;border-radius:50%;background:#0f6cbd;color:#fff;display:flex;align-items:center;
  justify-content:center;font-size:13px;font-weight:600;cursor:pointer}
/* command bar */
.owaX-cmd{display:flex;align-items:center;height:44px;padding:0 8px;border-bottom:1px solid #e1dfdd;gap:2px;overflow-x:auto}
.owaX-cbtn{border:none;background:transparent;color:#252424;font-size:13px;font-family:inherit;padding:6px 10px;
  border-radius:4px;cursor:pointer;white-space:nowrap}
.owaX-cbtn:hover{background:#f3f2f1}
.owaX-cbtn.primary{color:#0f6cbd;font-weight:600}
.owaX-sep{width:1px;height:20px;background:#e1dfdd;margin:0 6px}
/* body grid: rail | tree | list | reading */
.owaX-body{flex:1;display:grid;grid-template-columns:48px 200px 360px 1fr;min-height:0}
.owaX-rail{border-right:1px solid #e1dfdd;padding-top:8px;display:flex;flex-direction:column;align-items:center;gap:4px}
.owaX-ricon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:17px;
  color:#605e5c;cursor:pointer;border-radius:4px;border-left:3px solid transparent}
.owaX-ricon:hover{background:#f3f2f1;color:#252424}
.owaX-ricon.active{color:#0f6cbd;border-left-color:#0f6cbd}
.owaX-tree{border-right:1px solid #e1dfdd;overflow-y:auto;padding:8px 0}
.owaX-tgroup{font-size:12px;font-weight:600;color:#605e5c;padding:10px 16px 4px;cursor:pointer}
.owaX-fold{padding:7px 16px 7px 24px;font-size:14px;color:#252424;cursor:pointer;display:flex;
  justify-content:space-between;align-items:center;border-left:3px solid transparent}
.owaX-fold:hover{background:#f3f2f1}
.owaX-fold.active{background:#eff6fc;border-left-color:#0f6cbd;font-weight:600}
.owaX-count{font-size:12px;color:#0f6cbd;font-weight:600}
.owaX-listwrap{border-right:1px solid #e1dfdd;display:flex;flex-direction:column;min-height:0}
.owaX-listhead{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;
  font-size:15px;font-weight:600;border-bottom:1px solid #e1dfdd}
.owaX-filter{font-size:12px;font-weight:400;color:#0f6cbd;cursor:pointer}
.owaX-list{overflow-y:auto;flex:1}
/* message rows — OWA: unread bold + blue bar, read rows plain */
.owaX-msg{padding:10px 14px;border-bottom:1px solid #edebe9;cursor:pointer;border-left:3px solid transparent;position:relative}
.owaX-msg:hover{background:#f3f2f1}
.owaX-msg.sel{background:#eff6fc;border-left-color:#0f6cbd}
.owaX-msg .l1{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.owaX-sender{font-size:14px;font-weight:400;color:#252424;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.owaX-time{font-size:12px;color:#605e5c;flex:none}
.owaX-subj{font-size:13px;color:#605e5c;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.owaX-prev{font-size:13px;color:#605e5c;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.owaX-msg.unread .owaX-sender{font-weight:700;color:#252424}
.owaX-msg.unread .owaX-subj{font-weight:600;color:#0f6cbd}
.owaX-msg.unread::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:#0f6cbd}
/* reading pane */
.owaX-read{overflow-y:auto;padding:24px 32px;background:#fff}
.owaX-readempty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;
  color:#605e5c;font-size:15px;text-align:center;gap:6px}
.owaX-readicon{font-size:44px;color:#c8c6c4}
.owaX-rhead{border-bottom:1px solid #edebe9;padding-bottom:14px;margin-bottom:14px}
.owaX-rsubj{font-size:17px;font-weight:600;color:#252424;margin-bottom:10px}
.owaX-rfrom{display:flex;align-items:center;gap:10px}
.owaX-ravatar{width:36px;height:36px;border-radius:50%;background:#8764b8;color:#fff;display:flex;
  align-items:center;justify-content:center;font-size:14px;font-weight:600;flex:none}
.owaX-rname{font-size:14px;font-weight:600;color:#252424}
.owaX-raddr{font-size:12px;color:#605e5c}
.owaX-rtime{margin-left:auto;font-size:12px;color:#605e5c}
.owaX-rbody{font-size:14px;line-height:1.55;color:#252424;white-space:pre-wrap}
.owa-empty{color:#605e5c;padding:24px;text-align:center;font-size:13px}