:root{
  --navy:#0A2540; --navy2:#0E3A66; --gold:#F5B800; --gold-d:#d9a200;
  --bg:#f4f6fa; --card:#fff; --line:#e6eaf0; --txt:#1c2733; --muted:#7a8699;
  --green:#1aa260; --red:#e0455e; --orange:#ef8b1f; --blue:#2f7de1;
  --shadow:0 2px 10px rgba(10,37,64,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Be Vietnam Pro","Segoe UI",Roboto,system-ui,sans-serif;background:var(--bg);color:var(--txt);font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
button{font-family:inherit;cursor:pointer;border:none}
a{text-decoration:none;color:inherit}

/* ===== LOGIN ===== */
#login{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--navy),var(--navy2))}
.login-card{background:#fff;border-radius:16px;padding:38px 40px;width:380px;box-shadow:0 18px 50px rgba(0,0,0,.3)}
.login-logo{text-align:center;margin-bottom:8px}
.brand-mark{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--navy)}
.brand-mark .dot{width:34px;height:34px;border-radius:9px;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-size:18px}
.slogan{text-align:center;color:var(--gold-d);font-weight:600;font-size:12px;letter-spacing:1px;margin-bottom:24px}
.login-card label{font-size:12px;color:var(--muted);font-weight:600}
.login-card select{width:100%;padding:11px;border:1px solid var(--line);border-radius:9px;margin:6px 0 16px;font-size:14px;background:#fff}
.btn-login{width:100%;padding:12px;background:var(--navy);color:#fff;border-radius:9px;font-weight:700;font-size:15px;transition:.2s}
.btn-login:hover{background:var(--navy2)}
.login-hint{font-size:11px;color:var(--muted);text-align:center;margin-top:14px;line-height:1.5}

/* ===== SHELL ===== */
#app{display:none;min-height:100vh}
.layout{display:flex;min-height:100vh}
.sidebar{width:248px;background:var(--navy);color:#cdd8e6;display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0}
.sb-brand{padding:20px 18px;border-bottom:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px}
.sb-brand .dot{width:30px;height:30px;border-radius:8px;background:var(--gold);color:var(--navy);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:900}
.sb-menu{flex:1;overflow-y:auto;padding:10px 0}
.sb-menu a{display:flex;align-items:center;gap:11px;padding:11px 18px;font-size:13.5px;color:#cdd8e6;border-left:3px solid transparent}
.sb-menu a .ic{width:20px;text-align:center}
.sb-menu a:hover{background:rgba(255,255,255,.05);color:#fff}
.sb-menu a.active{background:rgba(245,184,0,.12);color:#fff;border-left-color:var(--gold);font-weight:600}
.sb-foot{padding:14px 18px;border-top:1px solid rgba(255,255,255,.08);font-size:11px;color:#7e8ba0}

.main{flex:1;margin-left:248px;display:flex;flex-direction:column}
.topbar{height:60px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:5}
.topbar h2{font-size:17px;color:var(--navy)}
.topbar .user{display:flex;align-items:center;gap:12px}
.topbar .who{text-align:right;line-height:1.3}
.topbar .who b{font-size:13px}
.topbar .who small{font-size:11px;color:var(--muted)}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--gold);color:var(--navy);display:flex;align-items:center;justify-content:center;font-weight:800}
.btn-out{font-size:12px;color:var(--red);background:#fdecef;padding:7px 12px;border-radius:8px;font-weight:600}
.content{padding:24px 26px;flex:1}

/* cards */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:22px}
.stat{background:var(--card);border-radius:13px;padding:18px;box-shadow:var(--shadow);border:1px solid var(--line)}
.stat .lbl{font-size:12px;color:var(--muted);font-weight:600}
.stat .val{font-size:23px;font-weight:800;color:var(--navy);margin-top:6px}
.stat .sub{font-size:11.5px;margin-top:4px}
.up{color:var(--green)} .down{color:var(--red)}

.panel{background:var(--card);border-radius:13px;box-shadow:var(--shadow);border:1px solid var(--line);margin-bottom:20px;overflow:hidden}
.panel-h{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;flex-wrap:wrap;gap:9px}
.panel-h>h3{font-size:15px;color:var(--navy);margin-right:auto}
.panel-h>span{display:inline-flex;flex-wrap:wrap;gap:8px;align-items:center}
.panel-h .tag{font-size:11px;color:var(--muted)}
.panel-b{padding:6px 0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:1100px){.grid2{grid-template-columns:1fr}}

table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:11px 18px;font-size:13px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;font-weight:700;background:#fafbfd}
tbody tr:hover{background:#fafcff}
td.num,th.num{text-align:right}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:700}
.b-green{background:#e3f6ec;color:var(--green)} .b-red{background:#fdecef;color:var(--red)}
.b-orange{background:#fdf0e1;color:var(--orange)} .b-blue{background:#e7f0fd;color:var(--blue)}
.b-gray{background:#eef1f6;color:var(--muted)}

.bar{height:8px;background:#eef1f6;border-radius:6px;overflow:hidden;min-width:90px}
.bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--gold),var(--gold-d))}
.dept-pill{font-size:11px;padding:3px 9px;border-radius:6px;background:#eef3fb;color:var(--navy2);font-weight:600}

/* permission matrix */
.matrix td,.matrix th{text-align:center;font-size:12px}
.matrix th{font-size:18px;padding:8px 5px;cursor:default}
.matrix td:first-child,.matrix th:first-child{text-align:left;font-weight:600;font-size:12.5px}
.ok{color:var(--green);font-weight:800} .no{color:#cfd6e0}
/* tooltip rê chuột hiện tên tác vụ ngay lập tức */
.matrix td[data-tip],.matrix th[data-tip]{position:relative}
.matrix td[data-tip]:hover{background:#eaf1f8}
.matrix td[data-tip]:hover::after,.matrix th[data-tip]:hover::after{
  content:attr(data-tip);position:absolute;left:50%;top:100%;transform:translateX(-50%);
  margin-top:6px;background:#0A2540;color:#fff;padding:6px 11px;border-radius:7px;
  font-size:12.5px;font-weight:700;white-space:nowrap;z-index:60;
  box-shadow:0 6px 18px rgba(10,37,64,.32);pointer-events:none}
.matrix td[data-tip]:hover::before,.matrix th[data-tip]:hover::before{
  content:"";position:absolute;left:50%;top:100%;transform:translateX(-50%);
  border:6px solid transparent;border-bottom-color:#0A2540;z-index:60;pointer-events:none}

/* AI chat */
.chat{display:flex;flex-direction:column;height:520px}
.chat-body{flex:1;overflow-y:auto;padding:18px;background:#f7f9fc}
.msg{max-width:74%;padding:11px 14px;border-radius:13px;margin-bottom:12px;font-size:13.5px;line-height:1.5}
.msg.ai{background:#fff;border:1px solid var(--line);border-bottom-left-radius:3px}
.msg.me{background:var(--navy);color:#fff;margin-left:auto;border-bottom-right-radius:3px}
.chat-in{display:flex;gap:10px;padding:14px;border-top:1px solid var(--line);background:#fff}
.chat-in input{flex:1;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px}
.chat-in button{background:var(--gold);color:var(--navy);font-weight:800;padding:0 20px;border-radius:10px}
.ai-note{font-size:11.5px;color:var(--muted);padding:10px 14px;background:#fff8e6;border-top:1px solid var(--line)}
.locked{padding:60px;text-align:center;color:var(--muted)}
.locked .big{font-size:40px;margin-bottom:10px}

/* login tabs + register + account mgmt */
.tabs{display:flex;gap:6px;margin-bottom:16px;background:#eef1f6;border-radius:10px;padding:4px}
.tab{flex:1;padding:9px;border-radius:8px;background:transparent;font-weight:700;color:var(--muted);font-size:13px}
.tab.active{background:#fff;color:var(--navy);box-shadow:var(--shadow)}
.login-card input{width:100%;padding:11px;border:1px solid var(--line);border-radius:9px;margin:6px 0 14px;font-size:14px}
.login-msg{margin-top:12px;font-size:12.5px;padding:11px;border-radius:8px;display:none;line-height:1.5}
.login-msg.show{display:block}
.login-msg.err{background:#fdecef;color:var(--red)}
.login-msg.warn{background:#fff8e6;color:var(--gold-d)}
.login-msg.ok{background:#e3f6ec;color:var(--green)}
.quick{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.quick small{color:var(--muted);font-size:11px}
.quick select{width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;margin:6px 0}
.quick button{width:100%;padding:9px;background:#eef1f6;color:var(--navy);border-radius:8px;font-weight:700}
/* ===== HỆ THỐNG NÚT đồng bộ – chuẩn chuyên gia ===== */
.btn-sm,.btn-add,.btn-save,.btn-cancel,.btn-do,.dept-add button,.quick button,.subtab{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:inherit;line-height:1.05;border:1px solid transparent;cursor:pointer;white-space:nowrap;vertical-align:middle;transition:transform .12s ease,box-shadow .12s ease,background .12s ease,filter .12s ease}
.btn-sm:hover{transform:translateY(-1px)}
.btn-sm:active,.btn-add:active,.btn-save:active,.btn-do:active{transform:translateY(1px)}
.btn-sm{font-size:11.5px;padding:6px 11px;border-radius:8px;font-weight:700;margin-right:5px;margin-bottom:3px}
.btn-approve{background:#e3f6ec;color:var(--green);border-color:#bfe8cf}
.btn-reject{background:#fdecef;color:var(--red);border-color:#f6cdd6}
.btn-edit{background:#e7f0fd;color:var(--blue);border-color:#cadefa}
.btn-lock{background:#fdf0e1;color:var(--orange);border-color:#f6dcb8}
.btn-approve:hover{background:#d2f0df}.btn-reject:hover{background:#fbdbe2}.btn-edit:hover{background:#d7e7fc}.btn-lock:hover{background:#fbe6cd}
.row-select{padding:6px 8px;border:1px solid var(--line);border-radius:7px;font-size:12px}

/* modal + quản lý phòng ban */
.modal-bg{display:none;position:fixed;inset:0;background:rgba(10,37,64,.55);z-index:50;align-items:center;justify-content:center}
.modal-bg.show{display:flex}
.modal{background:#fff;border-radius:14px;padding:24px 26px;width:430px;max-height:92vh;overflow:auto;box-shadow:0 18px 50px rgba(0,0,0,.35)}
.modal h3{color:var(--navy);margin-bottom:6px}
.modal label{font-size:12px;color:var(--muted);font-weight:600;display:block;margin-top:10px}
.modal input,.modal select{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;margin-top:4px;font-size:14px}
.modal-act{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}
.btn-cancel{background:#eef1f6;color:var(--muted);font-weight:700;padding:10px 18px;border-radius:9px}
.btn-cancel:hover{background:#e2e7ef}
.btn-save{background:var(--navy);color:#fff;font-weight:700;padding:10px 20px;border-radius:9px;box-shadow:0 2px 8px rgba(10,37,64,.2)}
.btn-save:hover{background:var(--navy2);box-shadow:0 4px 14px rgba(10,37,64,.28)}
.btn-add{background:linear-gradient(135deg,var(--gold),var(--gold-d));color:var(--navy);font-weight:800;padding:8px 15px;border-radius:9px;font-size:12.5px;box-shadow:0 2px 7px rgba(212,160,23,.32)}
.btn-add:hover{box-shadow:0 5px 14px rgba(212,160,23,.45);filter:brightness(1.04)}
.dept-row{display:flex;align-items:center;justify-content:flex-start;gap:16px;flex-wrap:wrap;padding:11px 18px;border-bottom:1px solid var(--line)}
.dept-row>span:first-child{min-width:200px}
.dept-add{display:flex;gap:8px;padding:13px 18px}
.dept-add input{flex:1;padding:9px;border:1px solid var(--line);border-radius:8px;font-size:13px}
.dept-add button{background:var(--navy);color:#fff;padding:9px 16px;border-radius:8px;font-weight:700;white-space:nowrap}
.dept-add button:hover{background:var(--navy2)}
.quick button:hover{background:#e2e7ef}

/* kho: sub-tabs nghiệp vụ + form nhập/xuất */
.subtabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}
.subtab{padding:9px 16px;border-radius:9px;background:#fff;border:1px solid var(--line);font-weight:700;font-size:13px;color:var(--muted)}
.subtab.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.form-inline{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;padding:18px;align-items:end}
.form-inline label{font-size:12px;color:var(--muted);font-weight:600;display:block;margin-bottom:5px}
.form-inline input,.form-inline select{width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.form-inline .act{grid-column:1/-1}
.btn-do{background:var(--navy);color:#fff;font-weight:700;padding:11px 24px;border-radius:9px;font-size:14px;box-shadow:0 2px 8px rgba(10,37,64,.2)}
.btn-do:hover{background:var(--navy2);box-shadow:0 5px 16px rgba(10,37,64,.3)}
.att{cursor:pointer;text-align:center;min-width:26px;padding:7px 4px}
.att:hover{background:#eef6ff}

/* Menu nhóm cha-con */
.sb-menu .sb-grphead{display:flex;align-items:center;gap:11px;padding:11px 18px;font-size:13.5px;color:#cdd8e6;border-left:3px solid transparent;cursor:pointer}
.sb-menu .sb-grphead:hover{background:rgba(255,255,255,.05);color:#fff}
.sb-menu .sb-grphead .ic{width:20px;text-align:center}
.sb-menu .sb-grphead .chev{margin-left:auto;font-size:10px;transition:transform .15s}
.sb-menu .sb-folder{cursor:default}
.sb-menu a.sb-parent{font-weight:600}
.sb-menu a.sb-child{padding-left:44px;font-size:13px;color:#b6c2d2}
.sb-menu a.sb-child .ic{font-size:13px}

/* ===== RESPONSIVE: dien thoai / iPad / may tinh ===== */
#hamb{display:none}
#sbBackdrop{display:none;position:fixed;inset:0;background:rgba(10,37,64,.45);z-index:40}
#sbBackdrop.show{display:block}
@media(max-width:900px){
  .sidebar{transform:translateX(-100%);transition:transform .25s ease;z-index:60;box-shadow:6px 0 24px rgba(0,0,0,.25);width:252px}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  #hamb{display:inline-flex;align-items:center;justify-content:center;width:40px;height:38px;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:20px;cursor:pointer;margin-right:8px;flex:none}
  .topbar{padding:0 12px;gap:6px}
  .topbar h2{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
  .user{gap:5px}
  .user .who{display:none}
  .btn-out{padding:7px 9px;font-size:12px}
  .content{padding:14px 12px}
  .modal{width:94vw;padding:18px 16px}
  .login-card{width:92vw;padding:26px 20px}
  th,td{padding:8px 10px;font-size:12px}
  .panel-b{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .panel-h{flex-wrap:wrap;gap:6px}
}
@media(max-width:520px){
  .topbar h2{max-width:46vw}
  .content{padding:10px 8px}
  th,td{padding:7px 7px;font-size:11.5px}
  .avatar{display:none}
}

/* In phiếu lương ra PDF */
@media print{ body.printing-payslip *{visibility:hidden} body.printing-payslip #payslipModal, body.printing-payslip #payslipModal *{visibility:visible} body.printing-payslip #payslipModal{display:flex !important;position:absolute;inset:0;background:#fff;padding:0} body.printing-payslip .modal-act{display:none !important} }
@media print{ body.printing-debtinv *{visibility:hidden} body.printing-debtinv #debtInvModal, body.printing-debtinv #debtInvModal *{visibility:visible} body.printing-debtinv #debtInvModal{display:flex !important;position:absolute;inset:0;background:#fff;padding:0} body.printing-debtinv .modal-act{display:none !important} }