:root{
  --primary:#1e5f8c;
  --primary-dark:#154866;
  --accent:#f0a04b;
  --success:#2e8b57;
  --danger:#c0392b;
  --warning:#e0a800;
  --bg:#f4f6f9;
  --card-bg:#ffffff;
  --border:#e3e7ed;
  --text:#2b3138;
  --text-muted:#6b7684;
  --sidebar-w:260px;
  --topbar-h:64px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:'Hind Siliguri','Inter',sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:14.5px;
}
a{text-decoration:none;color:inherit;}
ul{list-style:none;margin:0;padding:0;}

/* ---------- LOGIN PAGE ---------- */
.login-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary) 0%, var(--primary-dark) 100%);
  padding:20px;
}
.login-card{
  background:#fff;border-radius:14px;padding:40px 36px;width:100%;max-width:400px;
  box-shadow:0 20px 50px rgba(0,0,0,.25);
}
.login-card h1{font-size:20px;margin:0 0 4px;color:var(--primary-dark);}
.login-card p.sub{color:var(--text-muted);margin:0 0 24px;font-size:13.5px;}
.login-card label{display:block;margin-bottom:6px;font-weight:600;font-size:13.5px;}
.login-card input[type=text],.login-card input[type=password]{
  width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:8px;margin-bottom:18px;font-size:14.5px;
  font-family:inherit;
}
.login-card input:focus{outline:2px solid var(--primary);border-color:var(--primary);}
.btn-login{
  width:100%;padding:12px;background:var(--primary);color:#fff;border:none;border-radius:8px;
  font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;
}
.btn-login:hover{background:var(--primary-dark);}
.login-error{background:#fdecea;color:var(--danger);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:13.5px;}

/* ---------- SHELL LAYOUT ---------- */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  width:var(--sidebar-w);background:var(--primary-dark);color:#fff;flex-shrink:0;
  position:fixed;top:0;left:0;bottom:0;overflow-y:auto;transition:transform .2s ease;z-index:100;
}
.sidebar-brand{
  display:flex;align-items:center;gap:10px;padding:18px 20px;font-weight:700;font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.brand-icon{font-size:20px;}
.sidebar-nav{padding:10px 0 40px;}
.nav-link, .nav-group-title{
  display:flex;align-items:center;gap:10px;padding:12px 20px;color:#dbe7f0;font-weight:600;font-size:14px;
}
.nav-link.active, .nav-link:hover{background:rgba(255,255,255,.08);color:#fff;}
.nav-group-title{color:#a9c3d6;text-transform:uppercase;font-size:11.5px;letter-spacing:.5px;margin-top:8px;}
.nav-sublink{display:block;padding:9px 20px 9px 50px;color:#cfe0ec;font-size:13.8px;}
.nav-sublink.active, .nav-sublink:hover{background:rgba(255,255,255,.08);color:#fff;border-right:3px solid var(--accent);}

.main-area{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column;}
.topbar{
  height:var(--topbar-h);background:#fff;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:16px;padding:0 20px;position:sticky;top:0;z-index:50;
}
.sidebar-toggle{display:none;background:none;border:none;font-size:20px;cursor:pointer;}
.global-search{flex:1;max-width:480px;}
.global-search input{
  width:100%;padding:9px 14px;border:1px solid var(--border);border-radius:20px;font-size:13.8px;font-family:inherit;background:var(--bg);
}
.topbar-actions{display:flex;align-items:center;gap:10px;margin-right:0;margin-left:auto;}
.btn-quick-add{
  width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:20px;
  cursor:pointer;line-height:1;
}
.btn-icon{
  position:relative;background:none;border:none;font-size:19px;cursor:pointer;padding:6px;
}
.badge{
  position:absolute;top:0;right:0;background:var(--danger);color:#fff;font-size:10px;border-radius:10px;
  padding:1px 5px;font-weight:700;
}
.btn-profile{
  display:flex;align-items:center;gap:8px;background:none;border:none;cursor:pointer;font-family:inherit;font-size:13.8px;font-weight:600;
}
.avatar{
  width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;
  justify-content:center;font-weight:700;font-size:14px;
}
.dropdown{position:relative;}
.dropdown-menu{
  display:none;position:absolute;right:0;top:110%;background:#fff;border:1px solid var(--border);border-radius:10px;
  box-shadow:0 10px 30px rgba(0,0,0,.12);min-width:200px;padding:6px;z-index:200;
}
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu{display:block;}
.dropdown-menu a{display:block;padding:9px 12px;border-radius:6px;font-size:13.5px;}
.dropdown-menu a:hover{background:var(--bg);}
.notif-menu{min-width:280px;max-height:360px;overflow-y:auto;}
.notif-item{border-bottom:1px solid var(--border);padding:10px 12px;}
.notif-item.unread{background:#eef6fb;}
.notif-msg{color:var(--text-muted);font-size:12.5px;margin-top:2px;}
.notif-empty{padding:16px;text-align:center;color:var(--text-muted);font-size:13px;}

.content{padding:24px;}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:13.8px;}
.alert-success{background:#e6f5ec;color:var(--success);}
.alert-error{background:#fdecea;color:var(--danger);}
.alert-info{background:#e8f1fb;color:var(--primary);}

/* ---------- WIDGETS / CARDS ---------- */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px;}
.page-header h1{font-size:20px;margin:0;}
.widget-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-bottom:24px;}
.widget-card{background:var(--card-bg);border-radius:12px;padding:18px 20px;border:1px solid var(--border);}
.widget-card .w-label{color:var(--text-muted);font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.4px;}
.widget-card .w-value{font-size:24px;font-weight:700;margin-top:6px;color:var(--primary-dark);}
.widget-card .w-sub{font-size:12.5px;color:var(--text-muted);margin-top:4px;}
.progress-bar{background:#eef1f5;border-radius:20px;height:8px;overflow:hidden;margin-top:8px;}
.progress-bar > span{display:block;height:100%;background:var(--primary);}

.card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px;}
.card h2{font-size:16px;margin:0 0 14px;}

table.data-table{width:100%;border-collapse:collapse;font-size:13.8px;}
table.data-table th{
  text-align:left;padding:10px 12px;background:var(--bg);color:var(--text-muted);font-weight:700;font-size:12.5px;
  text-transform:uppercase;letter-spacing:.3px;border-bottom:2px solid var(--border);
}
table.data-table td{padding:10px 12px;border-bottom:1px solid var(--border);}
table.data-table tr:hover td{background:#fafcfe;}
.table-wrap{overflow-x:auto;}

.btn{display:inline-block;padding:9px 16px;border-radius:8px;border:none;cursor:pointer;font-size:13.8px;font-weight:600;font-family:inherit;text-align:center;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-secondary{background:#eef1f5;color:var(--text);}
.btn-secondary:hover{background:#e2e7ee;}
.btn-danger{background:var(--danger);color:#fff;}
.btn-success{background:var(--success);color:#fff;}
.btn-sm{padding:6px 11px;font-size:12.5px;}

.badge-status{padding:3px 10px;border-radius:12px;font-size:11.5px;font-weight:700;display:inline-block;}
.badge-pending,.badge-draft,.badge-partially_received,.badge-partially_paid,.badge-partially_issued,.badge-unpaid,.badge-expiring_soon,.badge-todo{background:#fff3cd;color:#8a6d00;}
.badge-approved,.badge-active,.badge-paid,.badge-received,.badge-passed,.badge-completed,.badge-verified,.badge-issued,.badge-valid,.badge-posted,.badge-done,.badge-ongoing{background:#e6f5ec;color:var(--success);}
.badge-rejected,.badge-failed,.badge-cancelled,.badge-expired,.badge-blocked{background:#fdecea;color:var(--danger);}
.badge-converted_to_po,.badge-in_progress,.badge-planning,.badge-on_hold{background:#e8f1fb;color:var(--primary);}
.badge-low{background:#fdecea;color:var(--danger);}

.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;}
.form-group{margin-bottom:14px;}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:13.5px;}
.form-group input, .form-group select, .form-group textarea{
  width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:7px;font-family:inherit;font-size:13.8px;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus{outline:2px solid var(--primary);border-color:var(--primary);}
.form-actions{margin-top:16px;display:flex;gap:10px;}

.qr-box{text-align:center;padding:10px;}
.qr-box img,.qr-box canvas{max-width:120px;}

@media (max-width: 900px){
  .sidebar{transform:translateX(-100%);}
  .sidebar.open{transform:translateX(0);}
  .main-area{margin-left:0;}
  .sidebar-toggle{display:block;}
  .global-search{max-width:none;}
  .uname{display:none;}
}