/* PQS EMS. Bố cục quản trị: sidebar trái, thanh trên, nội dung là bảng và biểu mẫu. Màu nhận diện PQS. */
:root{
  --bg:#F4F6FB; --panel:#FFFFFF; --panel-2:#F8F9FD; --line:#DFE3EF; --line-2:#ECEFF6;
  --ink:#141A2E; --text:#2A3147; --muted:#60677F;
  --accent:#0B1A9C; --accent-soft:#E4E8FC; --accent-ink:#FFFFFF;
  --good:#11804A; --good-soft:#E3F4EA; --warn:#A35C00; --warn-soft:#FDF1DD; --bad:#C2000D; --bad-soft:#FDE6E7;
  --side:#0B1450; --side-text:#C9CEF2;
  --font:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; --r:10px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0B0E1E; --panel:#13172C; --panel-2:#181D36; --line:#2A3058; --line-2:#20264A;
  --ink:#ECEEF8; --text:#D3D6EA; --muted:#9CA2C2;
  --accent:#AEB8FF; --accent-soft:#1E2558; --accent-ink:#0B0E1E;
  --good:#5BD394; --good-soft:#123323; --warn:#F2B455; --warn-soft:#3A2A10; --bad:#FF7179; --bad-soft:#3D1418;
  --side:#070A1A; --side-text:#A9AFD9; color-scheme:dark}}
*{box-sizing:border-box}
html,body{min-height:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.5;font-variant-numeric:tabular-nums}
h1,h2,h3{color:var(--ink);margin:0;text-wrap:balance}
h1{font-size:22px;font-weight:700}
h2{font-size:16px;font-weight:600}
h3{font-size:14px;font-weight:600}
a{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.app{display:grid;grid-template-columns:232px minmax(0,1fr);min-height:100vh}
.side{background:var(--side);color:var(--side-text);padding:16px 10px;display:flex;flex-direction:column;gap:2px;position:sticky;top:0;height:100vh;overflow:auto}
.brand{display:flex;align-items:center;gap:8px;padding:4px 10px 16px;color:#fff;font-weight:700;font-size:15px;text-decoration:none}
.brand i{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:#E3000F;color:#fff;font-style:normal;font-size:12px}
.side a.nav{display:block;color:var(--side-text);text-decoration:none;padding:8px 10px;border-radius:8px;font-size:13.5px}
.side a.nav:hover{background:rgba(255,255,255,.07);color:#fff}
.side a.nav.on{background:rgba(255,255,255,.13);color:#fff;font-weight:600}
.side .grp{font-size:11px;letter-spacing:.08em;text-transform:uppercase;opacity:.6;padding:12px 10px 4px}
.side .soon{padding:6px 10px;font-size:12.5px;opacity:.55}
.main{min-width:0;display:flex;flex-direction:column}
.top{position:sticky;top:0;z-index:5;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:10px max(16px,env(safe-area-inset-right,0px)) 10px max(16px,env(safe-area-inset-left,0px));flex-wrap:wrap}
.top .sp{flex:1}
.menu-btn{display:none}
.who{font-size:13px;text-align:right}
.who small{display:block;color:var(--muted)}
.content{padding:20px max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px));display:flex;flex-direction:column;gap:16px;min-width:0;max-width:1280px;width:100%}
.head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
.head p{margin:4px 0 0;color:var(--muted);font-size:13px;max-width:75ch}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:8px;padding:7px 12px;cursor:pointer;font-size:13px;font-weight:500;white-space:nowrap;text-decoration:none}
.btn:hover{border-color:var(--accent)}
.btn.pri{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.dan{color:var(--bad);border-color:var(--bad)}
.btn.sm{padding:4px 9px;font-size:12.5px}
.btn.link{border:none;background:none;color:var(--accent);padding:2px 4px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);min-width:0}
.panel>.ph{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--line-2);flex-wrap:wrap}
.panel>.pb{padding:14px;display:flex;flex-direction:column;gap:12px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px;display:flex;flex-direction:column;gap:4px;text-decoration:none;color:inherit}
.card:hover{border-color:var(--accent)}
.card .k{font-size:12.5px;color:var(--muted)}
.card .v{font-size:22px;font-weight:700;color:var(--ink)}
.card .s{font-size:12px;color:var(--muted)}
.grid2{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:16px;align-items:start}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.tabs a{padding:9px 12px;color:var(--muted);border-bottom:2px solid transparent;font-weight:500;text-decoration:none}
.tabs a.on{color:var(--accent);border-bottom-color:var(--accent)}
.tbar{display:flex;gap:8px;flex-wrap:wrap;padding:12px 14px;border-bottom:1px solid var(--line-2)}
.tbar input,.tbar select{border:1px solid var(--line);background:var(--panel-2);border-radius:8px;padding:6px 10px}
.tbar input[type=search]{flex:1 1 200px;min-width:0}
.tw{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line-2);vertical-align:top}
th{font-size:12px;font-weight:600;color:var(--muted);background:var(--panel-2);white-space:nowrap}
th a{color:inherit;text-decoration:none}
th a:hover{color:var(--ink)}
td.n,th.n{text-align:right;white-space:nowrap}
.empty{text-align:center;color:var(--muted);padding:28px 12px}
.pager{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;font-size:12.5px;color:var(--muted);flex-wrap:wrap}
.pill{display:inline-block;border-radius:999px;padding:1px 9px;font-size:12px;font-weight:500;white-space:nowrap;background:var(--line-2);color:var(--text)}
.pill.good{background:var(--good-soft);color:var(--good)}
.pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.bad{background:var(--bad-soft);color:var(--bad)}
.pill.acc{background:var(--accent-soft);color:var(--accent)}
.chip{display:inline-block;border:1px solid var(--line);border-radius:6px;padding:0 6px;font-size:11.5px;margin:1px 2px 1px 0;white-space:nowrap}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.alert{border-radius:8px;padding:10px 12px;font-size:13px;border:1px solid}
.alert.ok{background:var(--good-soft);border-color:var(--good);color:var(--ink)}
.alert.warn{background:var(--warn-soft);border-color:var(--warn);color:var(--ink)}
.alert.bad{background:var(--bad-soft);border-color:var(--bad);color:var(--ink)}
.alert.info{background:var(--accent-soft);border-color:var(--accent);color:var(--ink)}
.alert ul{margin:4px 0 0;padding-left:18px}
.todo a{display:block;padding:10px 14px;border-bottom:1px solid var(--line-2);text-decoration:none;color:var(--text)}
.todo a:hover{background:var(--panel-2)}
.kv{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:6px 16px;font-size:13px;margin:0}
.kv dt{color:var(--muted)}
.kv dd{margin:0}
form.stack{display:flex;flex-direction:column;gap:12px}
.fld{display:flex;flex-direction:column;gap:4px;min-width:0}
.fld label{font-size:12.5px;font-weight:500;color:var(--ink)}
.fld input,.fld select,.fld textarea{border:1px solid var(--line);background:var(--panel-2);border-radius:8px;padding:8px 10px;width:100%}
.fld .hint{font-size:12px;color:var(--muted)}
.fld .err,.err{color:var(--bad);font-size:12.5px;font-weight:500}
.f2{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.chk{display:inline-flex;gap:8px;align-items:center;font-size:13px}
details.inline{border-top:1px solid var(--line-2);padding-top:8px}
details.inline summary{cursor:pointer;color:var(--accent);font-size:12.5px}
.auth{min-height:100vh;display:grid;place-items:center;padding:24px 16px}
.auth .box{width:100%;max-width:400px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:14px}
.secret{font-family:ui-monospace,Consolas,monospace;font-size:16px;letter-spacing:.06em;background:var(--panel-2);border:1px dashed var(--line);border-radius:8px;padding:10px;word-break:break-all}
.codes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;font-family:ui-monospace,Consolas,monospace}
dialog{border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--text);max-width:460px;width:calc(100% - 32px);padding:0}
dialog::backdrop{background:rgba(5,8,25,.5)}
dialog .mb{padding:16px;display:flex;flex-direction:column;gap:12px}
dialog .mf{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--line-2)}
.forbid{max-width:520px;margin:40px auto;text-align:center;display:flex;flex-direction:column;gap:10px;align-items:center}
.forbid .code{font-size:40px;font-weight:700;color:var(--bad)}
@media (max-width:900px){
  .app{grid-template-columns:minmax(0,1fr)}
  .side{position:fixed;inset:0 auto 0 0;width:250px;z-index:40;transform:translateX(-100%);transition:transform .2s;height:100%}
  .side.open{transform:none}
  .menu-btn{display:inline-flex}
  .grid2{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion: reduce){.side{transition:none}}

/* Giai đoạn 4: bỏ qua menu, tìm kiếm chung */
.skip{position:absolute;left:-9999px;top:8px;z-index:50;background:var(--accent);color:var(--accent-ink);padding:8px 12px;border-radius:8px}
.skip:focus{left:8px}
.gsearch{flex:1 1 260px;max-width:420px}
.gsearch input{width:100%}
main.content:focus{outline:none}

/* Khung mới (tham khảo bố cục hệ thống trung tâm khác; màu, phông, biểu tượng của PQS) */
:root{--r:14px;--shadow:0 1px 2px rgba(20,26,46,.04),0 4px 14px rgba(20,26,46,.05)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--shadow:none}}
.panel,.card{border-radius:var(--r);box-shadow:var(--shadow)}
.ic{flex:none;vertical-align:middle}
.side a.nav{display:flex;align-items:center;gap:10px}
.side a.nav .ic{opacity:.85}
.side a.nav.on .ic{opacity:1}
.side a.nav span:first-of-type{flex:1;min-width:0}
.nb{display:inline-grid;place-items:center;min-width:19px;height:19px;padding:0 5px;border-radius:999px;background:#E3000F;color:#fff;font-size:11px;font-weight:700;line-height:1}
.side-clock{display:flex;align-items:center;gap:8px;margin:0 6px 10px;padding:8px 10px;border-radius:10px;background:rgba(255,255,255,.07);color:#fff;font-weight:600;font-size:13px;font-variant-numeric:tabular-nums}
.top{gap:14px}
.duty{display:flex;align-items:center;gap:6px 14px;flex-wrap:wrap;font-size:12.5px;min-width:0}
.duty-h{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink)}
.duty-p{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.duty-p a{font-weight:600;text-decoration:none}
.bell{position:relative;display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;color:var(--ink);text-decoration:none}
.bell:hover{background:var(--panel-2)}
.bell .nb{position:absolute;top:2px;right:0}
.me{position:relative}
.me summary{list-style:none;display:flex;align-items:center;gap:8px;cursor:pointer;border-radius:999px;padding:3px 10px 3px 3px}
.me summary::-webkit-details-marker{display:none}
.me summary:hover{background:var(--panel-2)}
.avatar{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-weight:700}
.me-name{font-size:13px;font-weight:600;color:var(--ink);max-width:16ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.me-menu{position:absolute;right:0;top:calc(100% + 6px);z-index:20;min-width:240px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 30px rgba(20,26,46,.15);padding:10px;display:flex;flex-direction:column;gap:4px}
.me-menu>div{padding:4px 6px 8px;border-bottom:1px solid var(--line-2);margin-bottom:4px}
.me-menu a,.me-menu button{display:flex;align-items:center;gap:8px;padding:8px;border-radius:8px;color:var(--ink);text-decoration:none;background:none;border:0;width:100%;text-align:left;cursor:pointer;font-size:13px}
.me-menu a:hover,.me-menu button:hover{background:var(--panel-2)}
.eyebrow{font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:-10px}
.es{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:28px 16px}
.es b{color:var(--ink);font-size:15px}
.es .btn{margin-top:6px}
.es-ic{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:50%;margin-bottom:4px}
.es-acc{background:var(--accent-soft);color:var(--accent)}
.es-good{background:var(--good-soft);color:var(--good)}
.es-warn{background:var(--warn-soft);color:var(--warn)}
.slot{display:inline-block;border-radius:6px;padding:2px 8px;font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.slot.free{background:var(--good-soft);color:var(--good)}
.slot.teach{background:var(--accent-soft);color:var(--accent)}
.slot.off{background:var(--line-2);color:var(--muted);text-decoration:line-through}
.avlist{display:flex;flex-direction:column}
.avlist>div{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 2px;border-bottom:1px solid var(--line-2)}
.avlist>div:last-child{border-bottom:0}
.avlist .d{font-weight:600;font-size:13px;white-space:nowrap}
.avlist .d small{color:var(--muted);font-weight:400}
.avlist .s{display:flex;gap:4px;flex-wrap:wrap;justify-content:flex-end}
.duty-week{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.duty-item{display:flex;gap:8px;align-items:flex-start}
.duty-item>div{flex:1;min-width:0}
@media (max-width:900px){.duty{order:10;width:100%}.me-name{display:none}}
/* Nút Menu chỉ hiện trên màn hình hẹp (trước đây .btn ghi đè display:none) */
.top .menu-btn{display:none}
@media (max-width:900px){.top .menu-btn{display:inline-flex}}
/* Thanh trên gọn một hàng trên màn hình rộng */
.top .gsearch{flex:1 1 180px;max-width:300px}
.top .duty{flex:0 1 auto}
@media (min-width:901px){.top{flex-wrap:nowrap}.top .duty{min-width:0;flex-wrap:nowrap;overflow:hidden}.top .gsearch{min-width:160px}}
@media (max-width:1700px){.me-name{display:none}}
/* Biểu đồ (components/chart/*): màu đã kiểm tra mù màu, độ tương phản trên nền sáng và tối */
:root{--ch-1:#2a78d6;--ch-2:#eb6834;--ch-o1:#184f95;--ch-o2:#3987e5;--ch-o3:#86b6ef;--ch-crit:#d03b3b;--ch-empty:#E3E6EF;--ch-grid:#ECEFF6;--ch-base:#C9CEDC}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--ch-1:#3987e5;--ch-2:#d95926;--ch-o1:#cde2fb;--ch-o2:#5598e7;--ch-o3:#1c5cab;--ch-crit:#e06060;--ch-empty:#262C52;--ch-grid:#20264A;--ch-base:#3A4170}}
.t-c1{background:var(--ch-1)}.t-c2{background:var(--ch-2)}.t-o1{background:var(--ch-o1)}.t-o2{background:var(--ch-o2)}.t-o3{background:var(--ch-o3)}.t-crit{background:var(--ch-crit)}.t-empty{background:var(--ch-empty)}
.ch{display:flex;flex-direction:column;gap:10px;min-width:0}
.ch-leg{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:12.5px;color:var(--muted)}
.ch-leg span{display:inline-flex;align-items:center;gap:6px}
.ch-leg b{color:var(--ink);font-weight:600}
.ch-sw{width:10px;height:10px;border-radius:3px;display:inline-block;flex:none}
.ch-sw.tg{width:2px;height:12px;border-radius:1px;background:var(--ink)}
/* Thanh ngang */
.ch-h{display:flex;flex-direction:column;gap:2px}
.ch-hr{display:grid;grid-template-columns:minmax(90px,28%) 1fr auto;align-items:center;gap:10px;padding:4px 6px;border-radius:6px;outline:none}
.ch-hr:hover,.ch-hr:focus-visible{background:var(--panel-2)}
.ch-hr:focus-visible{box-shadow:0 0 0 2px var(--accent)}
.ch-hl{font-size:13px;color:var(--ink);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ch-hl small{color:var(--muted);margin-left:4px}
.ch-ht{position:relative;height:12px}
.ch-ht.trk{background:var(--ch-empty);border-radius:4px}
.ch-hf{position:absolute;left:0;top:0;bottom:0;border-radius:0 4px 4px 0;min-width:2px}
.ch-ht.trk .ch-hf{border-radius:4px}
.ch-tg{position:absolute;top:-3px;bottom:-3px;width:2px;margin-left:-1px;background:var(--ink);border-radius:1px}
.ch-hv{font-size:13px;color:var(--ink);font-weight:600;min-width:46px;text-align:right;white-space:nowrap}
.ch-hv .lo{color:var(--bad);font-weight:600}
/* Thanh xếp chồng */
.ch-s{display:flex;gap:2px;height:16px}
.ch-s>span{border-radius:3px;min-width:3px;outline:none}
.ch-s>span:focus-visible{box-shadow:0 0 0 2px var(--accent)}
/* Cột theo thời gian */
.ch-c{display:grid;grid-template-columns:34px 1fr;column-gap:6px}
.ch-cy{position:relative;height:var(--h,140px);font-size:11px;color:var(--muted)}
.ch-cy span{position:absolute;right:0;transform:translateY(50%)}
.ch-cp{position:relative;height:var(--h,140px);border-bottom:1px solid var(--ch-base)}
.ch-cg{position:absolute;left:0;right:0;border-top:1px solid var(--ch-grid)}
.ch-ct{position:absolute;left:0;right:0;border-top:2px dashed var(--ink);opacity:.55}
.ch-cb{position:absolute;inset:0;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:2px;align-items:end}
.ch-cc{height:100%;display:flex;align-items:flex-end;justify-content:center;outline:none;border-radius:4px}
.ch-cc:hover,.ch-cc:focus-visible{background:var(--panel-2)}
.ch-cc:focus-visible{box-shadow:0 0 0 2px var(--accent)}
.ch-cf{width:min(70%,28px);border-radius:4px 4px 0 0;min-height:2px}
.ch-cf.fut{background:transparent;border:1.5px dashed var(--ch-base);border-bottom:0}
.ch-cx{grid-column:2;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:2px;font-size:11px;color:var(--muted);text-align:center;margin-top:4px}
.ch-cx span{white-space:nowrap;overflow:visible}
/* Chú thích khi rê chuột */
#ch-tip{position:fixed;z-index:80;pointer-events:none;max-width:280px;background:var(--ink);color:var(--panel);font-size:12.5px;line-height:1.45;padding:7px 10px;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.2);white-space:pre-line;display:none}
@media (forced-colors: active){.ch-hf,.ch-s>span,.ch-cf{forced-color-adjust:none;border:1px solid CanvasText}}