:root{
  --primary:#2563eb;--primary-d:#1d4ed8;--primary-l:#dbeafe;
  --success:#16a34a;--success-l:#dcfce7;--warning:#d97706;--warning-l:#fef3c7;
  --danger:#dc2626;--danger-l:#fee2e2;--info:#0891b2;--info-l:#cffafe;
  --bg:#f1f5f9;--card:#fff;--text:#1e293b;--text-l:#64748b;--border:#e2e8f0;
  --sidebar:#1e293b;--sidebar-h:#334155;--sidebar-a:#3b82f6;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
a{color:var(--primary);text-decoration:none}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}
::-webkit-scrollbar-track{background:#f1f5f9}

/* Login */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#1e293b,#3b82f6)}
.login-box{background:#fff;border-radius:12px;padding:40px;width:380px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-box h1{text-align:center;font-size:22px;margin-bottom:8px;color:var(--text)}
.login-box .sub{text-align:center;color:var(--text-l);margin-bottom:24px;font-size:13px}
.login-box .form-group{margin-bottom:16px}
.login-box label{display:block;margin-bottom:6px;font-weight:500;font-size:13px}
.login-box input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;transition:border .2s}
.login-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-l)}
.login-box button{width:100%;padding:11px;border:none;border-radius:8px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s}
.login-box button:hover{background:var(--primary-d)}
.login-box .err{color:var(--danger);font-size:13px;text-align:center;margin-top:8px}

/* Layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--sidebar);color:#94a3b8;flex-shrink:0;position:fixed;height:100vh;overflow-y:auto}
.sidebar .logo{padding:20px 16px;font-size:16px;font-weight:700;color:#fff;border-bottom:1px solid var(--sidebar-h);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar .menu-group{padding:8px 0}
.sidebar .menu-label{padding:6px 16px;font-size:11px;color:#64748b;text-transform:uppercase;letter-spacing:.5px}
.sidebar .menu-item{display:flex;align-items:center;gap:10px;padding:10px 16px;cursor:pointer;transition:all .15s;font-size:13px;color:#cbd5e1}
.sidebar .menu-item:hover{background:var(--sidebar-h);color:#fff}
.sidebar .menu-item.active{background:var(--sidebar-a);color:#fff}
.sidebar .menu-item .ico{font-size:16px;width:20px;text-align:center}
.main{flex:1;margin-left:220px;display:flex;flex-direction:column;min-height:100vh}
.topbar{height:56px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 24px;position:sticky;top:0;z-index:100}
.topbar .crumb{font-size:15px;font-weight:600}
.topbar .spacer{flex:1}
.topbar .user-info{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-l)}
.topbar .user-info .badge{background:var(--primary-l);color:var(--primary-d);padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600}
.topbar .user-info button{background:none;border:none;color:var(--danger);cursor:pointer;font-size:13px}
.content{flex:1;padding:20px 24px;overflow-y:auto}

/* Card */
.card{background:var(--card);border-radius:10px;box-shadow:0 1px 3px rgba(0,0,0,.06);margin-bottom:16px}
.card-head{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center}
.card-head h3{font-size:16px;font-weight:600}
.card-body{padding:20px}

/* Supplier groups */
.supplier-group{border-bottom:1px solid var(--border)}
.supplier-group:last-child{border-bottom:none}
.supplier-group-header{display:flex;align-items:center;padding:14px 20px;cursor:pointer;transition:background .15s;border-bottom:1px solid #f1f5f9}
.supplier-group-header:hover{background:#f8fafc}
.supplier-group-header .btn{position:relative;z-index:10;cursor:pointer}
.supplier-group-body{background:#fafbfc;padding:0 20px 16px 44px}
.group-arrow{display:inline-block;width:20px;text-align:center;color:#94a3b8;font-size:12px;transition:transform .2s}
.group-arrow.open{transform:rotate(90deg)}

/* Stats grid */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:20px}
.stat-card{background:#fff;border-radius:10px;padding:20px;box-shadow:0 1px 3px rgba(0,0,0,.06);border-left:4px solid var(--primary)}
.stat-card .label{color:var(--text-l);font-size:12px;margin-bottom:8px}
.stat-card .value{font-size:24px;font-weight:700;color:var(--text)}
.stat-card .delta{font-size:12px;margin-top:4px}
.stat-card .delta.up{color:var(--success)}
.stat-card .delta.down{color:var(--danger)}
.stat-card.success{border-left-color:var(--success)}
.stat-card.warning{border-left-color:var(--warning)}
.stat-card.danger{border-left-color:var(--danger)}
.stat-card.info{border-left-color:var(--info)}

/* Table */
.scroll-x{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th{background:#f8fafc;text-align:left;padding:10px 12px;border-bottom:2px solid var(--border);font-weight:600;white-space:nowrap;color:var(--text-l)}
td{padding:10px 12px;border-bottom:1px solid var(--border)}
tr:hover td{background:#f8fafc}
.text-c{text-align:center}
.text-r{text-align:right}
.text-l{text-align:left}

/* Badge/Status */
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600}
.badge.blue{background:var(--primary-l);color:var(--primary-d)}
.badge.green{background:var(--success-l);color:var(--success)}
.badge.yellow{background:var(--warning-l);color:var(--warning)}
.badge.red{background:var(--danger-l);color:var(--danger)}
.badge.gray{background:#f1f5f9;color:var(--text-l)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:4px;padding:8px 16px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--text);font-size:13px;cursor:pointer;transition:all .15s;white-space:nowrap}
.btn:hover{background:#f8fafc;border-color:#cbd5e1}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d)}
.btn-success{background:var(--success);border-color:var(--success);color:#fff}
.btn-success:hover{background:#15803d}
.btn-warning{background:#f59e0b;border-color:#f59e0b;color:#fff}
.btn-warning:hover{background:#d97706}
.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn-sm{padding:4px 10px;font-size:12px}
.btn-outline{background:transparent}
.btn-info{background:#0ea5e9;border-color:#0ea5e9;color:#fff}
.btn-info:hover{background:#0284c7}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* Form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-row{margin-bottom:14px}
.form-row.full{grid-column:1/-1}
.form-row label{display:block;margin-bottom:4px;font-weight:500;font-size:13px;color:var(--text-l)}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;transition:border .2s}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-l)}
.form-row textarea{min-height:60px;resize:vertical}

/* Modal */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}
.modal{background:#fff;border-radius:12px;width:600px;max-width:90vw;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.2);animation:modalIn .25s ease}
.modal.lg{width:900px}
.modal.xl{width:1200px}
.modal.xxl{width:95vw;max-width:1600px}
.modal-head{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-head h3{font-size:16px;font-weight:600}
.modal-head .close{background:none;border:none;font-size:22px;cursor:pointer;color:var(--text-l);line-height:1;width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .15s}
.modal-head .close:hover{background:var(--bg);color:var(--text)}
.modal-body{padding:20px;overflow-y:auto;flex:1}
.modal-foot{padding:12px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px;background:#f8fafc;border-radius:0 0 12px 12px}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes modalIn{from{opacity:0;transform:translateY(-12px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}

/* Toast */
.toast{position:fixed;top:20px;right:20px;padding:12px 20px;border-radius:8px;background:var(--text);color:#fff;font-size:14px;z-index:2000;animation:slideIn .3s ease;box-shadow:0 4px 12px rgba(0,0,0,.15)}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
@keyframes slideIn{from{transform:translateX(100%)}to{transform:translateX(0)}}

/* Toolbar */
.toolbar{display:flex;align-items:center;gap:10px;padding:12px 20px;flex-wrap:wrap}
.toolbar .spacer{flex:1}
.toolbar input,.toolbar select{padding:7px 11px;border:1px solid var(--border);border-radius:6px;font-size:13px}

/* Time filter */
.time-filter{display:flex;gap:6px;margin-bottom:16px}
.time-filter button{padding:6px 14px;border:1px solid var(--border);border-radius:6px;background:#fff;cursor:pointer;font-size:13px}
.time-filter button.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* Empty */
.empty{text-align:center;padding:40px;color:var(--text-l)}

/* Password change overlay */
.pw-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:9999}
.pw-box{background:#fff;border-radius:12px;padding:32px;width:400px;max-width:90vw}
.pw-box h2{margin-bottom:8px;font-size:18px}
.pw-box p{color:var(--text-l);font-size:13px;margin-bottom:20px}

/* Notification dot */
.notif-dot{display:inline-block;width:8px;height:8px;background:var(--danger);border-radius:50%;margin-left:4px}

/* Menu badge */
.menu-badge{display:inline-block;min-width:18px;height:18px;line-height:18px;padding:0 5px;background:var(--danger);color:#fff;border-radius:9px;font-size:11px;font-weight:600;text-align:center;margin-left:6px}

/* Progress timeline */
.timeline{list-style:none;padding:0}
.timeline-item{padding:8px 0;border-bottom:1px solid var(--border);display:flex;gap:12px;font-size:13px}
.timeline-item .dot{width:10px;height:10px;border-radius:50%;margin-top:4px;flex-shrink:0}
.timeline-item .dot.done{background:var(--success)}
.timeline-item .dot.pending{background:#cbd5e1}
.timeline-item .dot.active{background:var(--primary)}
.timeline-item .ts{color:var(--text-l);font-size:12px}