:root {
  --bg:#f3f5f7; --panel:#fff; --panel2:#f8f9fa; --line:#d6dbe0; --text:#20252a; --muted:#68727c;
  --accent:#1769aa; --accent2:#0f558c; --danger:#b52323; --warn:#b76a00; --ok:#177245; --sidebar:#17212b;
  --sidebarText:#e9eef2; --sidebarMuted:#9dacb9; --shadow:0 2px 10px rgba(15,30,45,.08);
  font-family:"Segoe UI",Arial,sans-serif; color:var(--text); background:var(--bg);
}
*{box-sizing:border-box} html,body,#app{height:100%;margin:0} body{overflow:hidden} button,input,select,textarea{font:inherit}
button{cursor:pointer} a{color:var(--accent)}
.hidden{display:none!important}.muted{color:var(--muted)}.danger{color:var(--danger)}.ok{color:var(--ok)}
.btn{border:1px solid #b9c2ca;background:#fff;color:#26313a;padding:8px 13px;border-radius:2px;min-height:34px}.btn:hover{background:#f2f5f7}.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent2)}
.btn-danger{background:#fff;border-color:#d39a9a;color:var(--danger)}.btn-link{border:0;background:transparent;color:var(--accent);padding:5px}
.input,.select,.textarea{width:100%;border:1px solid #b9c2ca;background:#fff;padding:8px 10px;border-radius:2px;outline:none}.input:focus,.select:focus,.textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px rgba(23,105,170,.12)}
.field{margin-bottom:14px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}.help{font-size:12px;color:var(--muted);margin-top:4px}
.login-shell{height:100%;display:flex;background:linear-gradient(120deg,#e9eef2,#f7f8f9)}.login-side{width:38%;min-width:340px;background:var(--sidebar);color:#fff;padding:54px;display:flex;flex-direction:column;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-weight:600;letter-spacing:.2px}.brand img{width:42px;height:42px;object-fit:contain}.brand span{font-size:21px}.login-copy{max-width:430px}.login-copy h2{font-size:32px;font-weight:400;margin:0 0 16px}.login-copy p{line-height:1.6;color:#c2ccd4}.login-main{flex:1;display:flex;align-items:center;justify-content:center;padding:35px}.login-box{width:min(430px,100%);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:34px}.login-box h2{font-weight:500;margin:0 0 8px}.login-box p{color:var(--muted);margin:0 0 24px}
.app-shell{height:100%;display:flex}.sidebar{width:238px;background:var(--sidebar);color:var(--sidebarText);display:flex;flex-direction:column;flex:none}.sidebar .brand{height:68px;padding:0 18px;border-bottom:1px solid rgba(255,255,255,.08)}.sidebar .brand img{width:34px;height:34px}.sidebar .brand span{font-size:17px}.nav{padding:12px 0;overflow:auto;flex:1}.nav button{display:flex;align-items:center;gap:10px;width:100%;border:0;background:transparent;color:var(--sidebarMuted);text-align:left;padding:10px 18px;border-left:3px solid transparent}.nav button:hover{background:rgba(255,255,255,.05);color:#fff}.nav button.active{color:#fff;background:rgba(255,255,255,.08);border-left-color:#4aa8e8}.nav-icon{width:19px;text-align:center}.sidebar-user{padding:13px 18px;border-top:1px solid rgba(255,255,255,.08);font-size:13px}.sidebar-user strong{display:block;color:#fff;overflow:hidden;text-overflow:ellipsis}.sidebar-user span{color:var(--sidebarMuted)}
.main{min-width:0;flex:1;display:flex;flex-direction:column}.topbar{height:52px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 18px;flex:none}.topbar-title{font-weight:600}.topbar-actions{display:flex;align-items:center;gap:10px}.content{flex:1;min-height:0;overflow:auto;padding:22px}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.section-head h2{font-size:22px;font-weight:500;margin:0}.section-head .actions{display:flex;gap:8px}
.metrics{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}.metric{background:#fff;border-top:3px solid var(--accent);border-right:1px solid var(--line);border-bottom:1px solid var(--line);border-left:1px solid var(--line);padding:16px 18px;min-width:180px}.metric .value{font-size:28px;font-weight:600}.metric .label{font-size:13px;color:var(--muted);margin-top:3px}
.panel{background:#fff;border:1px solid var(--line);box-shadow:0 1px 4px rgba(15,30,45,.04)}.panel-head{padding:13px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-weight:600}.panel-body{padding:16px}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;font-size:13px}.table th{position:sticky;top:0;background:#f5f7f8;text-align:left;font-weight:600;color:#4a555e;padding:9px 10px;border-bottom:1px solid var(--line)}.table td{padding:9px 10px;border-bottom:1px solid #e7eaed;vertical-align:middle}.table tr:hover td{background:#fafbfc}.badge{display:inline-block;padding:2px 7px;border:1px solid #b9c2ca;border-radius:10px;font-size:11px}.badge.manager{border-color:#6c8fb3;color:#2f5e8d}.badge.admin{border-color:#7c6db3;color:#59429a}.badge.off{border-color:#d3a1a1;color:#9d2828}.progress{height:7px;background:#e5e9ec;overflow:hidden}.progress>span{display:block;height:100%;background:var(--accent)}
.webmail{height:100%;display:flex;background:#fff;border:1px solid var(--line);min-height:500px}.mail-folders{width:205px;flex:none;border-right:1px solid var(--line);background:#f7f8f9;overflow:auto}.compose-main{margin:10px}.folder{display:flex;justify-content:space-between;width:100%;border:0;background:transparent;padding:9px 13px;text-align:left;color:#36414a}.folder:hover,.folder.active{background:#e7edf2}.folder .count{color:#6d7882;font-size:12px}.mail-list{width:360px;flex:none;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:260px}.mail-search{padding:9px;border-bottom:1px solid var(--line)}.mail-items{overflow:auto;flex:1}.mail-item{padding:10px 12px;border-bottom:1px solid #e6e9eb;cursor:pointer}.mail-item:hover{background:#f7f9fa}.mail-item.unread{background:#edf5fb}.mail-item .row1{display:flex;justify-content:space-between;gap:8px}.mail-item .from{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-item .date{font-size:11px;color:var(--muted);white-space:nowrap}.mail-item .subject{font-size:13px;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-reader{flex:1;min-width:0;display:flex;flex-direction:column}.mail-reader-head{padding:15px;border-bottom:1px solid var(--line)}.mail-reader-head h3{font-size:19px;font-weight:500;margin:0 0 8px}.mail-meta{font-size:12px;color:var(--muted);line-height:1.5}.mail-reader-actions{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}.mail-body{flex:1;min-height:0}.mail-body iframe{width:100%;height:100%;border:0;background:#fff}.mail-empty{height:100%;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.compose-modal,.modal-backdrop{position:fixed;inset:0}.modal-backdrop{background:rgba(10,20,30,.35);z-index:30}.compose-modal{z-index:31;display:flex;align-items:center;justify-content:center;padding:30px}.modal{background:#fff;border:1px solid #aeb7bf;box-shadow:0 15px 40px rgba(0,0,0,.22);width:min(820px,96vw);max-height:92vh;display:flex;flex-direction:column}.modal-head{padding:12px 15px;background:#263746;color:#fff;display:flex;justify-content:space-between;align-items:center}.modal-body{padding:14px;overflow:auto}.modal-foot{padding:11px 14px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}.editor-toolbar{border:1px solid #b9c2ca;border-bottom:0;padding:5px;background:#f5f6f7}.editor-toolbar button{border:0;background:transparent;min-width:30px;padding:4px}.editor{border:1px solid #b9c2ca;min-height:220px;padding:10px;outline:none;overflow:auto}.editor:focus{border-color:var(--accent)}
.password-rules{font-size:12px;color:var(--muted);line-height:1.6;padding:9px 10px;background:#f6f7f8;border-left:3px solid #8aa8bf;margin-bottom:14px}.expired-banner{background:#fff4dd;border:1px solid #e6c785;color:#6c4b00;padding:12px 15px;margin-bottom:15px}
.toast{position:fixed;right:18px;bottom:18px;z-index:100;background:#1f2b34;color:#fff;padding:10px 14px;box-shadow:var(--shadow);opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .16s,transform .16s}.toast.show{opacity:1;transform:none}.toast.error{background:#8e2222}.split-form{display:flex;gap:14px}.split-form>*{flex:1}.nowrap{white-space:nowrap}
@media(max-width:900px){.login-side{display:none}.sidebar{width:62px}.sidebar .brand span,.nav-label,.sidebar-user{display:none}.sidebar .brand{padding:0 10px;justify-content:center}.nav button{padding:12px 18px}.mail-folders{width:145px}.mail-list{width:300px}.content{padding:12px}}
@media(max-width:680px){.mail-reader{position:absolute;inset:53px 0 0 62px;background:#fff;z-index:5}.mail-list{flex:1;width:auto}.mail-folders{width:125px}.webmail{position:relative}.metrics{display:block}.metric{margin-bottom:8px}.split-form{display:block}.modal{width:98vw}.content{padding:8px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}