:root{
  --font:"Roboto Condensed","Arial Narrow",Arial,sans-serif;
  --bg:#f4f6fc;--paper:#fff;--soft:#f7f8fd;--line:#e3e7f2;--line2:#eef1f8;
  --ink:#1c2745;--muted:#66708c;--faint:#98a0b8;
  --p:#295eb2;--p2:#1f4a94;--p-soft:#e8eff9;--p-soft2:#dbe6f6;
  --v:#9a7cf2;--v-soft:#f3edff;
  --ok:#1f9d6b;--ok-soft:#e4f6ee;--warn:#d98c12;--warn-soft:#fff4de;--dg:#df4b66;--dg-soft:#fdeaee;
  --info:#2b8fd6;--info-soft:#e5f2fc;
  --sb:236px;--r:12px;--sh:0 1px 2px rgba(28,39,69,.05),0 4px 16px rgba(41,94,178,.08);
}
*{box-sizing:border-box}
html{font-size:15px}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.45;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}
a{color:var(--p);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2}
h1{font-size:26px}h2{font-size:18px}h3{font-size:15.5px}
p{margin:0 0 8px}
small,.small{font-size:12.5px}
.muted{color:var(--muted)}.faint{color:var(--faint)}
.right{text-align:right}.center{text-align:center}.nowrap{white-space:nowrap}
.mono{font-family:ui-monospace,Menlo,monospace;font-size:12.5px}
.hide{display:none!important}
.mt{margin-top:14px}.mb{margin-bottom:14px}.mt8{margin-top:8px}.mb8{margin-bottom:8px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row.between{justify-content:space-between}
.grow{flex:1}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g5{grid-template-columns:repeat(5,minmax(0,1fr))}.g6{grid-template-columns:repeat(6,minmax(0,1fr))}
.g23{grid-template-columns:2fr 1fr}.g32{grid-template-columns:1fr 2fr}

/* layout */
.app{display:flex;min-height:100vh}
.sidebar{width:var(--sb);background:linear-gradient(180deg,#fff 0%,#f6f7fe 100%);border-right:1px solid var(--line);position:fixed;top:0;bottom:0;left:0;overflow-y:auto;padding:14px 12px 20px;z-index:20;display:flex;flex-direction:column}
.brand{display:flex;flex-direction:column;align-items:center;padding:6px 0 14px}
.brand img{width:96px;height:96px;object-fit:contain}
.brand b{font-size:13px;color:var(--p2);letter-spacing:.04em;margin-top:-4px}
.brand small{color:var(--faint);font-size:11px}
.nav-group{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin:14px 10px 4px;font-weight:700}
.nav a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:9px;color:var(--ink);font-size:14.5px;margin-bottom:1px}
.nav a:hover{background:var(--p-soft);text-decoration:none}
.nav a.on{background:var(--p-soft2);color:var(--p2);font-weight:700}
.nav a .ic{width:18px;height:18px;flex:none;color:var(--p);opacity:.9}
.nav a .cnt{margin-left:auto;background:var(--dg);color:#fff;font-size:11px;border-radius:10px;padding:0 6px;line-height:17px}
.main{margin-left:var(--sb);flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:58px;display:flex;align-items:center;gap:12px;padding:0 24px;background:rgba(255,255,255,.75);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.topbar .crumb{color:var(--muted);font-size:14px}
.topbar .sp{flex:1}
.userchip{display:flex;align-items:center;gap:8px}
.userchip .av{width:32px;height:32px;border-radius:50%;background:var(--p-soft2);color:var(--p2);display:grid;place-items:center;font-weight:700;font-size:13px}
.userchip b{font-size:14px;display:block;line-height:1.1}
.userchip small{color:var(--muted)}
.bell{position:relative;display:inline-flex;width:36px;height:36px;border-radius:50%;align-items:center;justify-content:center;color:var(--ink);background:var(--soft);border:1px solid var(--line)}
.bell:hover{text-decoration:none;background:var(--p-soft)}
.bell .dot{position:absolute;top:-4px;right:-4px;background:var(--dg);color:#fff;font-size:10.5px;border-radius:10px;padding:0 5px;line-height:16px;font-weight:700}
.content{padding:22px 24px 40px;max-width:1440px;width:100%}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.page-head .eyebrow{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--v);font-weight:700}
.page-head p{color:var(--muted);margin:2px 0 0}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:36px;height:36px;font-size:18px;cursor:pointer}

/* cards */
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh)}
.card .hd{padding:12px 16px;border-bottom:1px solid var(--line2);display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.card .bd{padding:14px 16px}
.card .bd.p0{padding:0}
.kpi{padding:14px 16px;display:flex;gap:12px;align-items:center}
.kpi .ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--p-soft);color:var(--p);font-size:18px;flex:none}
.kpi .ico.v{background:var(--v-soft);color:var(--v)}.kpi .ico.ok{background:var(--ok-soft);color:var(--ok)}.kpi .ico.dg{background:var(--dg-soft);color:var(--dg)}.kpi .ico.warn{background:var(--warn-soft);color:var(--warn)}
.kpi small{display:block;color:var(--muted);font-size:12.5px}
.kpi b{font-size:22px;line-height:1.1}
.stat{padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--soft)}
.stat small{color:var(--muted);display:block}.stat b{font-size:18px}.stat .sub{display:block;color:var(--muted);font-size:12.5px;margin-top:2px}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);background:var(--soft);font-weight:700;white-space:nowrap}
.tbl td{padding:9px 12px;border-bottom:1px solid var(--line2);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tr:hover td{background:#fafbff}
.tbl td.n,.tbl th.n{text-align:right;white-space:nowrap}
.tbl .sub{display:block;color:var(--muted);font-size:12.5px}
.tbl tfoot td{font-weight:700;background:var(--soft)}
.tw{overflow-x:auto}
.empty{padding:26px;text-align:center;color:var(--faint)}

/* badges */
.b{display:inline-block;padding:1px 8px;border-radius:20px;font-size:12px;font-weight:700;background:var(--line2);color:var(--muted);white-space:nowrap;line-height:18px}
.b-p{background:var(--p-soft);color:var(--p2)}.b-v{background:var(--v-soft);color:#6a5bd0}.b-ok{background:var(--ok-soft);color:var(--ok)}
.b-warn{background:var(--warn-soft);color:#a8690a}.b-dg{background:var(--dg-soft);color:var(--dg)}.b-info{background:var(--info-soft);color:var(--info)}
.code{font-weight:700;color:var(--p2)}
.t-ok{color:var(--ok)}.t-dg{color:var(--dg)}.t-warn{color:var(--warn)}.t-p{color:var(--p2)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap;line-height:1.2}
.btn:hover{background:var(--soft);text-decoration:none}
.btn-p{background:var(--p);border-color:var(--p);color:#fff}.btn-p:hover{background:var(--p2)}
.btn-v{background:var(--v);border-color:var(--v);color:#fff}
.btn-ok{background:var(--ok);border-color:var(--ok);color:#fff}
.btn-dg{background:#fff;border-color:var(--dg-soft);color:var(--dg)}.btn-dg:hover{background:var(--dg-soft)}
.btn-sm{padding:4px 9px;font-size:12.5px;border-radius:7px}
.btn-xs{padding:2px 7px;font-size:12px;border-radius:6px}
.btn-link{border:0;background:none;color:var(--p);padding:0}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btns{display:flex;gap:6px;flex-wrap:wrap;align-items:center}

/* forms */
label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:3px;font-weight:700}
input,select,textarea{font:inherit;font-size:14px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 10px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--p-soft2);border-color:var(--p)}
input[type=checkbox],input[type=radio]{width:auto;margin-right:6px;vertical-align:middle}
textarea{min-height:70px;resize:vertical}
.f{display:grid;gap:12px}
.f .fld{min-width:0}
.chk{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--ink);font-weight:400;cursor:pointer}
.inline-form{display:inline}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end;margin-bottom:14px}
.filters input,.filters select{width:auto;min-width:140px}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:14px;flex-wrap:wrap}
.tabs a{padding:8px 14px;color:var(--muted);font-weight:700;border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs a.on{color:var(--p2);border-color:var(--p)}
.tabs a:hover{text-decoration:none;color:var(--ink)}

/* alerts / flash */
.flash{padding:10px 14px;border-radius:9px;margin-bottom:12px;font-weight:700;border:1px solid}
.flash.ok{background:var(--ok-soft);color:var(--ok);border-color:#c8ecd9}
.flash.error{background:var(--dg-soft);color:var(--dg);border-color:#f7c9d3}
.note{padding:10px 12px;border-radius:9px;background:var(--soft);border:1px solid var(--line);font-size:13.5px;color:var(--muted)}
.note.warn{background:var(--warn-soft);border-color:#f3dcae;color:#7a4e07}
.note.dg{background:var(--dg-soft);border-color:#f7c9d3;color:var(--dg)}
.note.info{background:var(--info-soft);border-color:#c6e2f7;color:#1c6ea8}
.rem{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px solid var(--line2);font-size:14px}
.rem:last-child{border-bottom:0}
.rem .dot{width:9px;height:9px;border-radius:50%;margin-top:6px;flex:none;background:var(--info)}
.rem.danger .dot{background:var(--dg)}.rem.warn .dot{background:var(--warn)}.rem.muted .dot{background:var(--faint)}

/* timetable */
.week{display:grid;grid-template-columns:repeat(7,minmax(150px,1fr));gap:8px}
.day{background:var(--paper);border:1px solid var(--line);border-radius:10px;min-height:140px;display:flex;flex-direction:column}
.day .dh{padding:8px 10px;border-bottom:1px solid var(--line2);font-weight:700;display:flex;justify-content:space-between;align-items:baseline}
.day .dh small{color:var(--muted);font-weight:400}
.day.today .dh{background:var(--p-soft);color:var(--p2);border-radius:10px 10px 0 0}
.day .dbody{padding:6px;display:flex;flex-direction:column;gap:6px}
.sess{display:block;padding:7px 9px;border-radius:8px;border:1px solid var(--line);border-left:4px solid var(--p);background:#fff;font-size:12.5px;color:var(--ink)}
.sess:hover{text-decoration:none;box-shadow:var(--sh)}
.sess b{display:block;font-size:13px}
.sess.online{border-left-color:var(--p);background:#f4f7ff}.sess.offline{border-left-color:var(--warn);background:#fff9ee}
.sess.done{opacity:.75}.sess.cancelled{text-decoration:line-through;opacity:.5}
.sess.c1{border-left-color:var(--v);background:#f6f4ff}

/* dialog */
dialog{border:0;border-radius:14px;padding:0;box-shadow:0 20px 60px rgba(28,39,69,.25);width:min(640px,94vw);max-height:92vh;overflow:auto}
dialog::backdrop{background:rgba(28,39,69,.4)}
dialog .hd{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
dialog .bd{padding:16px 18px}
dialog .ft{padding:12px 18px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}
.x{background:none;border:0;font-size:20px;cursor:pointer;color:var(--muted)}

/* misc */
.pill-group{display:flex;gap:6px;flex-wrap:wrap}
.pill{padding:4px 10px;border-radius:20px;border:1px solid var(--line);font-size:13px;color:var(--muted);background:#fff}
.pill.on{background:var(--p);color:#fff;border-color:var(--p)}
.bar{height:8px;background:var(--line2);border-radius:6px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--p);border-radius:6px}
.bar.ok i{background:var(--ok)}.bar.dg i{background:var(--dg)}.bar.warn i{background:var(--warn)}
.linkbox{display:flex;gap:6px;align-items:center}
.linkbox input{font-size:13px;background:var(--soft)}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--v-soft);color:#6a5bd0;display:grid;place-items:center;font-weight:700;flex:none}
.chart{display:flex;gap:8px;align-items:flex-end;height:120px;padding-top:8px}
.chart .col{flex:1;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:4px;font-size:11.5px;color:var(--muted)}
.chart .col i{display:block;width:100%;background:linear-gradient(180deg,var(--v),var(--p));border-radius:6px 6px 2px 2px;min-height:2px}
.desc dt{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-top:8px}
.desc dd{margin:0;font-size:14.5px}
.slot-row{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:6px;margin-bottom:6px}
.login{min-height:100vh;display:grid;place-items:center;background:radial-gradient(1200px 600px at 10% -10%,#e6ebff 0%,transparent 60%),radial-gradient(900px 500px at 100% 100%,#f0ecff 0%,transparent 60%),var(--bg)}
.login .card{width:min(400px,92vw);padding:30px 30px 26px;text-align:center}
.login img{width:120px}
.print-only{display:none}
@media print{.sidebar,.topbar,.no-print,.flash{display:none!important}.main{margin:0}.content{padding:0}.card{box-shadow:none;border:0}.print-only{display:block}body{background:#fff}}
@media (max-width:1000px){.g4,.g5,.g6{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(2,minmax(0,1fr))}.g23,.g32{grid-template-columns:1fr}.week{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:820px){
  .sidebar{transform:translateX(-100%);transition:transform .2s}.sidebar.open{transform:none;box-shadow:0 0 40px rgba(0,0,0,.3)}
  .main{margin-left:0}.burger{display:inline-block}.content{padding:14px 16px 40px}.topbar{padding:0 14px}
  .g2,.g3,.g4,.g5,.g6{grid-template-columns:1fr}.week{grid-template-columns:1fr}
  h1{font-size:22px}.userchip small{display:none}
}

/* portal */
.portal{max-width:920px;margin:0 auto;padding:16px 16px 60px}
.portal .ph{display:flex;align-items:center;gap:12px;padding:8px 0 14px}
.portal .ph img{width:56px;height:56px}
.portal .ph h1{font-size:20px}
.ptabs{display:flex;gap:4px;overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:12px;padding:4px;margin-bottom:16px}
.ptabs a{padding:8px 12px;border-radius:9px;color:var(--muted);font-weight:700;white-space:nowrap;font-size:14px}
.ptabs a.on{background:var(--p);color:#fff}
.ptabs a:hover{text-decoration:none}
.wd-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px}
.wd-grid .wd{border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:#fff}
.wd-grid .wd .times{display:flex;gap:6px;margin-top:6px}
.wd-grid .wd input[type=time]{padding:4px 6px;font-size:13px}
.grid>*{min-width:0}.card>.bd.p0{overflow-x:auto}

.fit{display:flex;flex-wrap:wrap;gap:5px;align-items:center;margin:6px 0}
.fc{border:1px solid var(--line);border-radius:999px;padding:2px 9px;font:inherit;font-size:12.5px;background:#fff;cursor:pointer;color:var(--ink)}
.fc.ok{background:#e4f6ee;border-color:#9fd9bf;color:#16603f;font-weight:600}.fc.part{background:#fff8e6;border-color:#f3dcae;color:#7a4e07}
.fc.busy{background:#fdeaee;border-color:#f4b6c2;color:#a3243e}

.filters label.chk{display:inline-flex;align-items:center;gap:6px;width:auto;white-space:nowrap}.filters label.chk input,.filters input[type=checkbox]{width:auto;min-width:0;margin:0;flex:none}

.nav-sec{margin-top:6px}.nav-sec>summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);font-weight:700;padding:8px 10px 4px;border-radius:8px;user-select:none}
.nav-sec>summary::-webkit-details-marker{display:none}.nav-sec>summary::after{content:"▸";font-size:12px;transition:transform .15s}.nav-sec[open]>summary::after{transform:rotate(90deg)}
.nav-sec>summary:hover{color:var(--p2);background:var(--p-soft)}.nav-sec[data-act]>summary{color:var(--p2)}
.help-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 12px;font:inherit;font-size:13.5px;font-weight:700;color:var(--p2);cursor:pointer}
.help-btn:hover{background:var(--p-soft)}
.help-dlg{max-width:620px;width:92vw}.help-steps{margin:0 0 10px;padding-left:20px;display:grid;gap:8px;font-size:15px;line-height:1.55}
@media (max-width:820px){.help-btn span{display:none}.help-btn{padding:5px 11px}}

/* ===== Điện thoại (≤640px) ===== */
@media (max-width:640px){
  /* ô nhập 16px: iPhone không tự phóng to khi bấm vào ô */
  input,select,textarea{font-size:16px;padding:9px 11px}
  .btn{padding:9px 14px;min-height:40px}.btn-sm,.btn-xs{min-height:34px;padding:6px 11px}
  .topbar{height:54px;gap:8px}.topbar .crumb{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}
  .userchip>div{display:none}
  .content{padding:12px 12px 40px}
  .page-head{gap:10px;margin-bottom:12px;align-items:stretch}.page-head p{font-size:14px}
  .page-head>.btns{width:100%}
  .grid.g4,.grid.g5,.grid.g6{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .kpi{padding:10px 12px;gap:8px}.kpi .ico{width:32px;height:32px;font-size:14px;border-radius:9px}.kpi b{font-size:18px}.kpi small{font-size:12px}
  .filters{gap:6px}.filters>*{flex:1 1 140px}.filters input,.filters select{min-width:0;width:100%}
  .card .hd{flex-wrap:wrap;gap:6px}
  dialog{width:100vw;max-width:100vw;max-height:94dvh;margin:auto auto 0;border-radius:16px 16px 0 0}
  /* bảng dạng thẻ */
  .tbl.stk,.tbl.stk>tbody,.tbl.stk>tfoot,.tbl.stk>tbody>tr,.tbl.stk>tfoot>tr,.tbl.stk>tr{display:block;width:100%}
  .tbl.stk thead,.tbl.stk tr.thr{display:none}
  .tbl.stk tr.thr.has-ctl{display:flex;flex-wrap:wrap;gap:8px;padding:8px 12px;background:var(--soft)}
  .tbl.stk tr.thr.has-ctl th{border:0;padding:0;background:none}
  .tbl.stk tr:not(.thr){border-bottom:1px solid var(--line);padding:10px 12px}
  .tbl.stk tr:not(.thr)>td,.tbl.stk tr:not(.thr)>th{display:grid;grid-template-columns:32% minmax(0,1fr);gap:10px;align-items:start;border:0;padding:3px 0;text-align:left!important;white-space:normal!important;background:none!important;box-shadow:none!important;width:auto!important;min-width:0!important}
  .tbl.stk tr:not(.thr)>*::before{content:attr(data-label);font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:700;padding-top:3px;overflow-wrap:anywhere}
  .tbl.stk tr:not(.thr)>[data-label=""]{grid-template-columns:minmax(0,1fr)}
  .tbl.stk tr:not(.thr)>[data-label=""]::before{display:none}
  .tbl.stk tr:not(.thr)>:first-child{font-size:15px}
  .tbl.stk .cv{min-width:0;overflow-wrap:anywhere}
  .tbl.stk .cv:empty{min-height:0}
  .tbl.stk textarea,.tbl.stk select,.tbl.stk input:not([type=checkbox]):not([type=radio]){width:100%!important;max-width:100%!important;min-width:0!important}
  .tbl.stk tr.clash{box-shadow:inset 4px 0 0 var(--dg);background:var(--dg-soft)}
  .card>.bd.p0{overflow-x:visible}.tw{overflow-x:visible}
}