*{margin:0;padding:0;box-sizing:border-box}
:root{--pri:#1a3a5c;--pri-light:#e8eef4;--accent:#e67e22;--green:#2e7d32;--red:#c62828;--yellow:#f9a825;--bg:#f4f6f8;--card:#fff;--text:#333;--text2:#666;--border:#e0e0e0;--radius:8px;--shadow:0 1px 3px rgba(0,0,0,.08)}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
#app{display:flex;min-height:100vh}

/* Sidebar */
#sidebar{width:240px;background:var(--pri);color:#fff;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;overflow-y:auto}
.brand{display:flex;align-items:center;gap:10px;padding:16px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand-icon{width:36px;height:36px;background:var(--accent);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px}
.brand-name{font-weight:700;font-size:14px}
.brand-sub{font-size:10px;opacity:.6}
.nav-links{flex:1;padding:8px 0}
.nav-section{font-size:10px;text-transform:uppercase;letter-spacing:1.5px;opacity:.4;padding:16px 16px 6px;font-weight:600}
.nav-link{display:flex;align-items:center;gap:10px;padding:10px 16px;color:rgba(255,255,255,.7);text-decoration:none;font-size:13px;font-weight:500;transition:all .15s;border-left:3px solid transparent}
.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-link.active{background:rgba(255,255,255,.12);color:#fff;border-left-color:var(--accent)}
.nav-icon{font-size:16px;width:20px;text-align:center}
.nav-footer{padding:12px 16px;border-top:1px solid rgba(255,255,255,.1)}

/* Main */
#main-content{margin-left:240px;flex:1;padding:24px;min-height:100vh}

/* Cards & Containers */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}
.page-title{font-size:22px;font-weight:700;color:var(--pri)}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:16px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-title{font-size:15px;font-weight:700;color:var(--pri)}

/* Stats */
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:20px}
.stat-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;text-align:center}
.stat-value{font-size:28px;font-weight:800;margin-bottom:2px}
.stat-label{font-size:11px;color:var(--text2);text-transform:uppercase;letter-spacing:.5px}
.stat-blue .stat-value{color:#1565c0}
.stat-orange .stat-value{color:var(--accent)}
.stat-red .stat-value{color:var(--red)}
.stat-green .stat-value{color:var(--green)}

/* Tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
thead th{background:var(--pri);color:#fff;padding:10px 12px;text-align:left;font-weight:600;white-space:nowrap;position:sticky;top:0}
tbody td{padding:9px 12px;border-bottom:1px solid var(--border)}
tbody tr:hover{background:var(--pri-light)}
tbody tr:nth-child(even){background:#fafbfc}
tbody tr:nth-child(even):hover{background:var(--pri-light)}

/* Forms */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.form-group{display:flex;flex-direction:column;gap:4px}
.form-group label{font-size:12px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.3px}
.form-group input,.form-group select,.form-group textarea{padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit;background:#fff;transition:border .15s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--pri);box-shadow:0 0 0 3px rgba(26,58,92,.1)}
.form-group input[type="number"]{font-variant-numeric:tabular-nums}
.form-full{grid-column:1/-1}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border:none;border-radius:6px;font-size:13px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .15s;text-decoration:none}
.btn-pri{background:var(--pri);color:#fff}.btn-pri:hover{background:#15304d}
.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:#cf6d15}
.btn-green{background:var(--green);color:#fff}.btn-green:hover{background:#246328}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:#a12020}
.btn-outline{background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;padding:6px 12px;font-size:11px}
.btn-outline:hover{background:rgba(255,255,255,.1)}
.btn-sm{padding:6px 14px;font-size:12px}
.btn-ghost{background:transparent;color:var(--pri);padding:6px 10px}.btn-ghost:hover{background:var(--pri-light)}
.btn-icon{padding:6px 8px;background:transparent;border:1px solid var(--border);border-radius:6px;cursor:pointer;font-size:14px}
.btn-icon:hover{background:var(--pri-light)}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}

/* Badges */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600}
.badge-blue{background:#e3f2fd;color:#1565c0}
.badge-orange{background:#fff3e0;color:#e65100}
.badge-green{background:#e8f5e9;color:#2e7d32}
.badge-red{background:#fce4ec;color:#c62828}
.badge-purple{background:#f3e5f5;color:#7b1fa2}
.badge-grey{background:#f5f5f5;color:#666}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:200}
.modal-overlay.hidden{display:none}
.modal-box{background:#fff;border-radius:12px;padding:24px;max-width:600px;width:90%;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal-title{font-size:18px;font-weight:700;color:var(--pri);margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}
.modal-close{background:none;border:none;font-size:22px;cursor:pointer;color:#999;padding:4px}
.modal-close:hover{color:var(--text)}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}

/* Toast */
#toast-container{position:fixed;top:20px;right:20px;z-index:300;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 20px;border-radius:8px;color:#fff;font-size:13px;font-weight:500;animation:slideIn .3s ease;box-shadow:0 4px 12px rgba(0,0,0,.15)}
.toast-success{background:var(--green)}
.toast-error{background:var(--red)}
.toast-info{background:var(--pri)}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* Line items table in order form */
.line-items-table{margin:16px 0}
.line-items-table th{font-size:11px;padding:8px 6px}
.line-items-table td{padding:6px;vertical-align:middle}
.line-items-table input,.line-items-table select{padding:6px 8px;font-size:13px;width:100%;border:1px solid var(--border);border-radius:4px}
.line-items-table .calc-field{background:#f0f5fa;font-weight:600;color:var(--pri);text-align:right;padding:6px 8px;border-radius:4px;font-size:13px;white-space:nowrap}

/* Order summary */
.order-summary{display:flex;justify-content:flex-end}
.summary-table{font-size:14px;min-width:280px}
.summary-table td{padding:4px 12px}
.summary-table .total-row td{border-top:2px solid var(--pri);font-weight:700;font-size:16px;padding-top:8px;color:var(--pri)}

/* Print */
@media print{
  #sidebar,.nav-footer,.btn,.page-header .btn-group,.no-print{display:none!important}
  #main-content{margin-left:0!important;padding:0!important}
  .card{box-shadow:none;border:1px solid #ddd}
  body{background:#fff}
  .print-header{display:block!important}
}
.print-header{display:none}

/* Pending table color coding */
.row-overdue{background:#fff0f0!important}
.row-due-today{background:#fffde7!important}

/* Search */
.search-box{position:relative}
.search-box input{padding-left:32px}
.search-box::before{content:'🔍';position:absolute;left:10px;top:50%;transform:translateY(-50%);font-size:13px}
.search-results{position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:0 0 6px 6px;box-shadow:0 4px 12px rgba(0,0,0,.1);max-height:200px;overflow-y:auto;z-index:50}
.search-results .sr-item{padding:8px 12px;cursor:pointer;font-size:13px;border-bottom:1px solid #f0f0f0}
.search-results .sr-item:hover{background:var(--pri-light)}

/* Empty state */
.empty-state{text-align:center;padding:40px;color:var(--text2)}
.empty-state .empty-icon{font-size:48px;margin-bottom:12px;opacity:.4}
.empty-state p{font-size:14px}

/* Responsive */
@media(max-width:900px){
  #sidebar{width:60px}
  #sidebar .brand-name,#sidebar .brand-sub,#sidebar .nav-link span:not(.nav-icon),#sidebar .nav-section,#sidebar .nav-footer{display:none}
  #sidebar .brand{justify-content:center;padding:12px}
  #sidebar .nav-link{justify-content:center;padding:12px}
  #main-content{margin-left:60px}
}