:root{
  --primary:#1e3a8a; --primary-2:#2563eb; --accent:#0ea5e9;
  --bg:#f1f5f9; --card:#ffffff; --text:#0f172a; --muted:#64748b;
  --border:#e2e8f0; --ok:#16a34a; --warn:#f59e0b; --danger:#dc2626;
  --radius:14px; --shadow:0 2px 12px rgba(15,23,42,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
a{color:var(--primary-2);text-decoration:none}
.app{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:250px;background:linear-gradient(180deg,var(--primary),#172554);color:#e2e8f0;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto}
.brand{display:flex;align-items:center;gap:12px;padding:20px 18px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand-logo{width:42px;height:42px;border-radius:10px;background:var(--accent);display:grid;place-items:center;font-weight:800;color:#fff;font-size:18px}
.brand-text{font-weight:700;font-size:15px;line-height:1.1}
.brand-text small{font-weight:400;opacity:.7;font-size:11px}
.nav{padding:12px 10px;display:flex;flex-direction:column;gap:3px}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:#cbd5e1;font-weight:500;transition:.15s}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{background:var(--accent);color:#fff;box-shadow:0 4px 12px rgba(14,165,233,.4)}
.nav-ico{width:20px;text-align:center}
.nav-logout{margin-top:10px;color:#fca5a5}

/* Main */
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:64px;background:var(--card);display:flex;align-items:center;gap:16px;padding:0 22px;box-shadow:var(--shadow);position:sticky;top:0;z-index:20}
.menu-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer}
.topbar-title{font-weight:700;font-size:16px;text-transform:capitalize}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:18px}
.bell{position:relative;font-size:19px}
.badge{position:absolute;top:-6px;right:-8px;background:var(--danger);color:#fff;font-size:10px;padding:1px 5px;border-radius:10px}
.user-chip{display:flex;align-items:center;gap:10px}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--primary-2);color:#fff;display:grid;place-items:center;font-weight:700}
.user-meta strong{display:block;font-size:13px}
.user-meta small{color:var(--muted);font-size:11px}
.content{padding:24px;flex:1}
.foot{padding:16px 24px;display:flex;justify-content:space-between;color:var(--muted);font-size:12px;border-top:1px solid var(--border)}

/* Cards / grid */
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.page-head h1{font-size:20px}
.page-head p{color:var(--muted);font-size:13px}
.grid{display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;border:1px solid var(--border)}
.card h3{font-size:15px;margin-bottom:14px}
.stat{display:flex;align-items:center;gap:16px}
.stat .ico{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;font-size:24px;color:#fff}
.stat .n{font-size:26px;font-weight:800;line-height:1}
.stat .l{color:var(--muted);font-size:12px;margin-top:2px}

/* Table */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}
th{background:#f8fafc;color:var(--muted);font-weight:600;text-transform:uppercase;font-size:11px;letter-spacing:.03em}
tbody tr:hover{background:#f8fafc}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:9px;border:none;background:var(--primary-2);color:#fff;font-weight:600;cursor:pointer;font-size:13px;transition:.15s}
.btn:hover{filter:brightness(1.08)}
.btn-sm{padding:6px 11px;font-size:12px}
.btn-ok{background:var(--ok)}.btn-warn{background:var(--warn)}.btn-danger{background:var(--danger)}
.btn-light{background:#e2e8f0;color:var(--text)}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}

/* Badges */
.tag{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600}
.tag-green{background:#dcfce7;color:#166534}.tag-blue{background:#dbeafe;color:#1e40af}
.tag-yellow{background:#fef9c3;color:#854d0e}.tag-red{background:#fee2e2;color:#991b1b}
.tag-gray{background:#f1f5f9;color:#475569}

/* Forms */
.form-grid{display:grid;gap:16px;grid-template-columns:1fr 1fr}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group.full{grid-column:1/-1}
label{font-weight:600;font-size:12px;color:#334155}
input,select,textarea{padding:10px 12px;border:1px solid var(--border);border-radius:9px;font-size:13px;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea{resize:vertical;min-height:80px}

/* Alerts */
.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;position:relative;font-size:13px;font-weight:500}
.alert-success{background:#dcfce7;color:#166534}.alert-danger{background:#fee2e2;color:#991b1b}
.alert-warning{background:#fef9c3;color:#854d0e}.alert-info{background:#dbeafe;color:#1e40af}
.alert-x{position:absolute;right:12px;top:10px;cursor:pointer;font-size:16px}

/* Login */
.auth{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),#0ea5e9);padding:20px}
.auth-card{background:#fff;border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.25);width:100%;max-width:410px;padding:36px;text-align:center}
.auth-card .logo{width:64px;height:64px;border-radius:16px;background:var(--primary);color:#fff;font-weight:800;font-size:26px;display:grid;place-items:center;margin:0 auto 16px}
.auth-card h2{font-size:20px}.auth-card .sub{color:var(--muted);margin:6px 0 24px;font-size:13px}
.auth-card .form-group{text-align:left;margin-bottom:14px}
.auth-card .btn{width:100%;justify-content:center;padding:12px}

/* Progress / meter */
.meter{height:9px;background:#e2e8f0;border-radius:20px;overflow:hidden}
.meter > span{display:block;height:100%;border-radius:20px}

.section-title{font-size:13px;font-weight:700;color:var(--primary);margin:18px 0 8px;text-transform:uppercase;letter-spacing:.03em}
.muted{color:var(--muted)}
.text-right{text-align:right}.text-center{text-align:center}
.mt{margin-top:16px}.mb{margin-bottom:16px}
.flex{display:flex;gap:10px;align-items:center}
.between{justify-content:space-between}

@media(max-width:980px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3,.grid-2{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}}
@media(max-width:760px){
  .sidebar{position:fixed;left:-260px;z-index:100;transition:.25s}
  .sidebar.open{left:0}
  .menu-toggle{display:block}
  .user-meta{display:none}
  .grid-4{grid-template-columns:1fr}
}
@media print{
  .sidebar,.topbar,.foot,.no-print{display:none!important}
  .content{padding:0}.card{box-shadow:none;border:1px solid #ccc}
}