*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#0D9488;--primary-dark:#0F766E;--primary-light:#CCFBF1;--bg:#F8FAFC;--white:#FFFFFF;--text:#1E293B;--muted:#64748B;--light:#94A3B8;--border:#E2E8F0;--danger:#EF4444;--danger-light:#FEE2E2;--success:#10B981;--warning:#F59E0B;--sidebar-w:220px;--blue:#1E40AF;--green:#059669}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;background:var(--bg);color:var(--text);display:flex;min-height:100vh;font-size:14px}
.sidebar{width:var(--sidebar-w);background:var(--white);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:50;transition:transform .3s}
.sidebar-header{padding:16px 20px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border)}
.sidebar-avatar{width:32px;height:32px;background:var(--primary);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px}
.sidebar-brand{font-weight:700;font-size:13px;color:var(--text)}
.sidebar-brand small{display:block;font-weight:400;font-size:11px;color:var(--muted)}
.sell-btn{margin:16px;padding:10px;background:var(--white);border:2px solid var(--primary);color:var(--primary);border-radius:8px;font-weight:600;font-size:13px;cursor:pointer;transition:all .2s;text-align:center}
.sell-btn:hover{background:var(--primary-light)}
.nav{flex:1;padding:4px 0}
.nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;color:var(--muted);text-decoration:none;font-size:13px;font-weight:500;border-left:3px solid transparent;transition:all .15s;cursor:pointer}
.nav a:hover{color:var(--text);background:#F1F5F9}
.nav a.active{color:var(--primary);border-left-color:var(--primary);background:var(--primary-light);font-weight:600}
.nav a svg{width:18px;height:18px;flex-shrink:0}
.nav-bottom{border-top:1px solid var(--border);padding:8px 0}
.nav-bottom a{font-size:12px}
.main{margin-left:var(--sidebar-w);flex:1;min-height:100vh}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 28px;background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}
.topbar h1{font-size:18px;font-weight:700}
.topbar-actions{display:flex;gap:8px}
.content{padding:24px 28px}
.btn{padding:8px 16px;border-radius:6px;font-size:13px;font-weight:600;border:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:all .15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:var(--white);color:var(--primary);border:1.5px solid var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.btn-sm{padding:6px 12px;font-size:12px}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#DC2626}
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--white);border:1px solid var(--border);border-radius:10px;padding:20px 24px}
.stat-card .label{font-size:12px;color:var(--muted);margin-bottom:4px}
.stat-card .value{font-size:28px;font-weight:700;color:var(--text)}
.stat-card .value small{font-size:14px;font-weight:600;color:var(--muted)}
.time-filters{display:flex;gap:0;margin-bottom:20px;flex-wrap:wrap}
.time-filters button{padding:7px 16px;border:1px solid var(--border);background:var(--white);color:var(--muted);font-size:12px;font-weight:500;cursor:pointer;transition:all .15s}
.time-filters button:first-child{border-radius:6px 0 0 6px}
.time-filters button:last-child{border-radius:0 6px 6px 0}
.time-filters button.active{background:var(--text);color:#fff;border-color:var(--text)}
.time-filters button:hover:not(.active){background:#F1F5F9}
.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:10px}
.section-title{font-size:16px;font-weight:700}
.filters{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.filter-select{padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:13px;color:var(--text);background:var(--white);cursor:pointer;min-width:140px}
.filter-select:focus{outline:none;border-color:var(--primary)}
.search-input{padding:8px 12px 8px 32px;border:1px solid var(--border);border-radius:6px;font-size:13px;background:var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.3-4.3'/%3E%3C/svg%3E") 10px center no-repeat;min-width:160px}
.search-input:focus{outline:none;border-color:var(--primary)}
.table-wrap{background:var(--white);border:1px solid var(--border);border-radius:10px;overflow:visible;margin-bottom:4px}
.table-wrap table{border-radius:10px;overflow:hidden}
table{width:100%;border-collapse:collapse}
thead{background:#F8FAFC}
th{padding:12px 16px;text-align:left;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.3px;border-bottom:1px solid var(--border)}
td{padding:12px 16px;font-size:13px;border-bottom:1px solid var(--border);vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover{background:#F8FAFC}
.stock-badge{padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600}
.stock-in{background:#DCFCE7;color:#166534}
.stock-low{background:#FEF3C7;color:#92400E}
.stock-out{background:var(--danger-light);color:var(--danger)}
.actions-btn{background:none;border:1px solid var(--border);padding:4px 10px;border-radius:4px;cursor:pointer;font-size:16px;color:var(--muted);letter-spacing:2px}
.actions-btn:hover{background:#F1F5F9}
.date-group-header{background:linear-gradient(135deg,#F0FDFA,#F8FAFC);padding:14px 20px;font-size:14px;font-weight:700;color:var(--text);border-bottom:2px solid var(--primary-light);display:flex;align-items:center;gap:8px}
.date-group-header .date-badge{color:var(--primary);font-size:15px}
.branch-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-bottom:24px}
.branch-card{background:var(--white);border:1px solid var(--border);border-radius:10px;padding:16px 20px;cursor:pointer;transition:all .2s}
.branch-card:hover{border-color:var(--primary);box-shadow:0 2px 12px rgba(13,148,136,.1)}
.branch-card .bc-name{font-size:14px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:6px}
.branch-card .bc-stats{display:flex;gap:16px;font-size:12px;color:var(--muted)}
.branch-card .bc-stats .bc-val{font-weight:700;color:var(--text);font-size:14px;display:block}
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:100;justify-content:center;align-items:flex-start;padding:40px 16px;overflow-y:auto}
.modal-overlay.active{display:flex}
.modal{background:var(--white);border-radius:12px;padding:24px;width:100%;max-width:520px;box-shadow:0 20px 60px rgba(0,0,0,.15)}
.modal h2{font-size:16px;font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:4px;text-transform:uppercase;letter-spacing:.3px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:13px;font-family:inherit;color:var(--text);background:var(--white)}
.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}
.sale-items{margin:12px 0;max-height:200px;overflow-y:auto}
.sale-item-row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--border);font-size:13px}
/* Searchable item picker */
.item-search-wrap{position:relative}
.item-search-wrap input{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:13px;color:var(--text);background:var(--white)}
.item-search-wrap input:focus{outline:none;border-color:var(--primary)}
.item-dropdown{position:absolute;top:100%;left:0;right:0;background:var(--white);border:1px solid var(--border);border-radius:0 0 8px 8px;max-height:200px;overflow-y:auto;z-index:10;display:none;box-shadow:0 8px 24px rgba(0,0,0,.12)}
.item-dropdown.open{display:block}
.item-option{padding:10px 14px;cursor:pointer;font-size:13px;display:flex;justify-content:space-between;border-bottom:1px solid var(--border)}
.item-option:last-child{border-bottom:none}
.item-option:hover{background:var(--primary-light)}
.item-option .item-stock{font-size:11px;color:var(--muted)}
/* Chart */
.chart-container{background:var(--white);border:1px solid var(--border);border-radius:10px;padding:20px}
.chart-title{font-size:15px;font-weight:700;margin-bottom:16px}
.chart-wrap{position:relative;height:280px}
.bar-group{position:absolute;bottom:30px;display:flex;gap:4px;align-items:flex-end}
.bar{width:28px;border-radius:4px 4px 0 0;transition:height .5s ease;cursor:pointer}
.bar:hover{opacity:.85}
.bar.sales{background:var(--blue)}
.bar.profit{background:var(--green)}
.chart-label{position:absolute;bottom:0;font-size:11px;color:var(--muted);text-align:center;width:60px}
.chart-legend{display:flex;gap:16px;justify-content:center;margin-top:10px;font-size:12px;color:var(--muted)}
.chart-legend span{display:flex;align-items:center;gap:4px}
.chart-legend .dot{width:10px;height:10px;border-radius:2px;display:inline-block}
.y-labels{position:absolute;left:0;top:0;bottom:30px;width:50px;display:flex;flex-direction:column-reverse;justify-content:space-between}
.y-labels span{font-size:10px;color:var(--light);text-align:right;padding-right:8px}
.toast{position:fixed;bottom:20px;right:20px;background:var(--primary);color:#fff;padding:10px 18px;border-radius:8px;font-size:13px;font-weight:600;z-index:200;animation:slideIn .3s;box-shadow:0 4px 12px rgba(0,0,0,.15)}
@keyframes slideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.menu-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer;padding:4px 8px;color:var(--text)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:40}
@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.open{display:block}
  .main{margin-left:0}
  .menu-toggle{display:block}
  .stats-row{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .content{padding:16px}
  .topbar{padding:12px 16px}
  table{font-size:12px}
  th,td{padding:8px 10px}
  .branch-cards{grid-template-columns:1fr}
  [style*='grid-template-columns: 1fr 1fr'],[style*='grid-template-columns:1fr 1fr']{grid-template-columns:1fr!important}
}
@media(max-width:400px){.stats-row{grid-template-columns:1fr}}