:root{
  --bg:#f4f6fb; --panel:#ffffff; --ink:#1f2933; --muted:#6b7280;
  --line:#e5e7eb; --brand:#2563eb; --brand-d:#1d4ed8;
  --green:#16a34a; --red:#dc2626; --amber:#d97706; --sidebar:#0f172a;
  --sidebar-ink:#cbd5e1; --sidebar-active:#1e293b;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Tahoma,"Hind Siliguri",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--sidebar);color:var(--sidebar-ink);
  flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar .brand{padding:16px 20px;font-size:18px;font-weight:700;color:#fff;
  border-bottom:1px solid #1e293b;display:flex;align-items:center;gap:10px}
.sidebar .brand .brand-logo{width:34px;height:34px;object-fit:contain;
  background:#fff;border-radius:7px;padding:3px;flex-shrink:0}
.sidebar .brand span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* dashboard company header */
.co-header{display:flex;align-items:center;gap:18px;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin-bottom:18px}
.co-header img{width:72px;height:72px;object-fit:contain;border-radius:10px;
  border:1px solid var(--line);padding:5px;flex-shrink:0}
.co-header .co-name{font-size:22px;font-weight:700}
.co-header .co-meta{color:var(--muted);font-size:13px;margin-top:3px}
.co-header .placeholder{width:72px;height:72px;display:flex;align-items:center;
  justify-content:center;font-size:38px;background:#f1f5f9;border-radius:10px;flex-shrink:0}
.sidebar .nav-group{padding:8px 0}
.sidebar .nav-group small{display:block;padding:10px 20px 4px;color:#64748b;
  font-size:11px;text-transform:uppercase;letter-spacing:.05em}
.sidebar a{display:flex;align-items:center;gap:8px;padding:9px 20px;
  color:var(--sidebar-ink);font-size:13.5px}
.sidebar a:hover{background:var(--sidebar-active);text-decoration:none;color:#fff}
.sidebar a.active{background:var(--brand);color:#fff}
.sidebar a .pill{margin-left:auto;background:var(--red);color:#fff;border-radius:10px;
  padding:1px 7px;font-size:11px}
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:var(--panel);border-bottom:1px solid var(--line);
  padding:12px 24px;display:flex;align-items:center;gap:16px}
.topbar .title{font-size:18px;font-weight:600}
.topbar .spacer{flex:1}
.content{padding:24px;max-width:1200px;width:100%}

/* cards & grid */
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;
  padding:18px;margin-bottom:18px}
.card h3{margin:0 0 12px;font-size:15px}
.grid{display:grid;gap:16px}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.grid.cols-4,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.grid{grid-template-columns:1fr!important}.sidebar{display:none}}

.stat{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px}
.stat .label{color:var(--muted);font-size:12.5px}
.stat .value{font-size:24px;font-weight:700;margin-top:6px}
.stat.green .value{color:var(--green)} .stat.red .value{color:var(--red)}
.stat.amber .value{color:var(--amber)} .stat.brand .value{color:var(--brand)}

/* tables */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em}
tbody tr:hover{background:#f9fafb}
.text-right{text-align:right} .text-center{text-align:center}
.num{text-align:right;font-variant-numeric:tabular-nums}

/* forms */
label{display:block;font-size:13px;margin-bottom:4px;color:#374151;font-weight:500}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);
  border-radius:7px;font-size:14px;background:#fff;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.field{margin-bottom:14px}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row .field{flex:1;min-width:160px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:7px;
  border:1px solid var(--brand);background:var(--brand);color:#fff;font-size:13.5px;
  cursor:pointer;font-family:inherit}
.btn:hover{background:var(--brand-d);text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{background:#f3f4f6}
.btn.danger{background:var(--red);border-color:var(--red)}
.btn.success{background:var(--green);border-color:var(--green)}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* badges */
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:500}
.badge.gray{background:#f1f5f9;color:#475569}
.badge.blue{background:#dbeafe;color:#1d4ed8}
.badge.green{background:#dcfce7;color:#15803d}
.badge.amber{background:#fef3c7;color:#b45309}
.badge.red{background:#fee2e2;color:#b91c1c}
.badge.purple{background:#ede9fe;color:#6d28d9}

/* flash */
.flash{padding:11px 16px;border-radius:8px;margin-bottom:14px;font-size:14px}
.flash.success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}
.flash.danger{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}
.flash.info{background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe}

.page-head{display:flex;align-items:center;margin-bottom:18px;gap:12px}
.page-head h2{margin:0;font-size:20px}
.page-head .spacer{flex:1}
.muted{color:var(--muted)}
.empty{padding:40px;text-align:center;color:var(--muted)}
.search-bar{display:flex;gap:8px;margin-bottom:16px}
.search-bar input{max-width:320px}
hr{border:none;border-top:1px solid var(--line);margin:16px 0}

/* select + add button */
.input-with-add{display:flex;gap:6px}
.input-with-add select,.input-with-add input{flex:1}
.input-with-add .btn{flex-shrink:0;padding:8px 12px}

/* language toggle */
.lang-toggle{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.lang-toggle a{padding:5px 10px;font-size:12.5px;color:var(--muted)}
.lang-toggle a.active{background:var(--brand);color:#fff}
.lang-toggle a:hover{text-decoration:none;background:#f3f4f6}
.lang-toggle a.active:hover{background:var(--brand-d)}

/* modal */
.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;
  align-items:flex-start;justify-content:center;z-index:50;padding-top:8vh}
.modal-overlay.open{display:flex}
.modal{background:#fff;border-radius:12px;width:440px;max-width:92vw;
  box-shadow:0 24px 70px rgba(0,0,0,.35);max-height:80vh;overflow:auto}
.modal-head{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:16px}
.modal-head .x{margin-left:auto;cursor:pointer;font-size:22px;color:var(--muted);line-height:1;background:none;border:none}
.modal-body{padding:20px}
.modal-err{color:var(--red);font-size:13px;margin-bottom:10px;display:none}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:var(--sidebar)}
.login-box{background:#fff;border-radius:14px;padding:34px;width:360px;
  box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-box h1{margin:0 0 4px;font-size:22px;text-align:center}
.login-box p{margin:0 0 22px;text-align:center;color:var(--muted);font-size:13px}