:root {
  --sidebar-w: 240px;
  --topbar-h: 56px;
  --ink: #1a1d23;
  --ink-2: #4a5060;
  --ink-3: #8891a0;
  --bg: #f3f4f8;
  --surface: #ffffff;
  --border: #e2e5eb;
  --primary: #3b63f7;
  --primary-light: rgba(59,99,247,.08);
  --primary-hover: #2c4fd6;
  --success: #16a34a;
  --success-light: rgba(22,163,74,.1);
  --warning: #ea8c00;
  --warning-light: rgba(234,140,0,.1);
  --danger: #dc2626;
  --danger-light: rgba(220,38,38,.1);
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow: 0 2px 8px rgba(0,0,0,.08);
  --transition: .18s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI','Inter',system-ui,sans-serif;color:var(--ink);background:var(--bg);display:flex;min-height:100vh;overflow-x:hidden}

/* Sidebar */
.sidebar{width:var(--sidebar-w);background:#1a1d23;color:#fff;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition)}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-icon{width:36px;height:36px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem}
.brand-text{font-weight:700;font-size:1.1rem;letter-spacing:-.02em}
.sidebar-nav{flex:1;overflow-y:auto;padding:12px 0}
.nav-group{padding:0 12px;margin-bottom:4px}
.nav-group-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.35);padding:12px 12px 6px;font-weight:600}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;cursor:pointer;color:rgba(255,255,255,.65);font-size:.88rem;transition:all var(--transition);border:none;background:none;width:100%;text-align:left;font-family:inherit}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--primary);color:#fff}
.nav-item svg{width:18px;height:18px;flex-shrink:0;opacity:.7}
.nav-item.active svg{opacity:1}
.sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08)}
.sidebar-action{background:rgba(255,255,255,.08);border:none;color:rgba(255,255,255,.6);padding:8px 14px;border-radius:8px;cursor:pointer;font-size:.82rem;width:100%;transition:all var(--transition)}
.sidebar-action:hover{background:rgba(255,255,255,.14);color:#fff}
.sidebar-version{text-align:center;font-size:.72rem;color:rgba(255,255,255,.25);margin-top:8px}

/* Main area */
.main-area{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh}
.topbar{height:var(--topbar-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:16px;padding:0 24px;position:sticky;top:0;z-index:50}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;color:var(--ink);padding:4px}
.topbar-title{font-size:1.15rem;font-weight:700}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.company-name{font-size:.85rem;color:var(--ink-3)}
.content{flex:1;padding:24px;max-width:1400px;width:100%}

/* Feedback */
.feedback{margin:0 24px;min-height:0;overflow:hidden;transition:all .3s}
.feedback.show{padding:12px 16px;min-height:44px;border-radius:var(--radius);margin-top:12px;font-size:.88rem;font-weight:500}
.feedback.tone-success{background:var(--success-light);color:var(--success)}
.feedback.tone-danger{background:var(--danger-light);color:var(--danger)}
.feedback.tone-neutral{background:var(--primary-light);color:var(--primary)}

/* Cards & Panels */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:20px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-header h2{font-size:1rem;font-weight:700}
.card-header p{font-size:.82rem;color:var(--ink-3)}

/* KPI cards */
.kpi-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}
.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px 20px;display:flex;flex-direction:column;gap:6px}
.kpi-label{font-size:.78rem;color:var(--ink-3);text-transform:uppercase;letter-spacing:.04em;font-weight:600}
.kpi-value{font-size:1.7rem;font-weight:800;line-height:1.1}
.kpi-sub{font-size:.78rem;color:var(--ink-3)}
.kpi.accent .kpi-value{color:var(--primary)}
.kpi.success .kpi-value{color:var(--success)}
.kpi.warning .kpi-value{color:var(--warning)}
.kpi.danger .kpi-value{color:var(--danger)}

/* Dashboard big cards */
.dash-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;margin-bottom:24px}
.dash-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;display:flex;flex-direction:column;gap:14px}
.dash-card h3{font-size:.92rem;font-weight:700;color:var(--ink-2)}
.dash-card .big-number{font-size:2.2rem;font-weight:800}
.dash-card .sub-stats{display:grid;grid-template-columns:1fr 1fr;gap:8px;font-size:.82rem;color:var(--ink-2)}
.dash-card .sub-stats strong{display:block;font-size:1.05rem;color:var(--ink)}
.stock-bar{height:8px;border-radius:4px;background:var(--border);overflow:hidden;display:flex}
.stock-bar span{height:100%;transition:width .3s}
.stock-bar .critical{background:var(--danger)}
.stock-bar .low{background:var(--warning)}
.stock-bar .good{background:var(--success)}

/* Quick actions */
.quick-actions{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.quick-action{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:.85rem;font-weight:600;color:var(--ink);transition:all var(--transition);font-family:inherit}
.quick-action:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}

/* Tables */
.table-wrap{overflow-x:auto;margin-top:12px}
table{width:100%;border-collapse:collapse;font-size:.88rem}
thead{background:var(--bg)}
th{text-align:left;padding:10px 14px;font-weight:600;color:var(--ink-2);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;border-bottom:2px solid var(--border)}
td{padding:10px 14px;border-bottom:1px solid var(--border);vertical-align:middle}
tbody tr:hover{background:rgba(59,99,247,.02)}

/* Badges */
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:.75rem;font-weight:700}
.badge-success{background:var(--success-light);color:var(--success)}
.badge-warning{background:var(--warning-light);color:var(--warning)}
.badge-danger{background:var(--danger-light);color:var(--danger)}
.badge-primary{background:var(--primary-light);color:var(--primary)}
.badge-neutral{background:var(--bg);color:var(--ink-2)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:.85rem;font-weight:600;color:var(--ink);transition:all var(--transition);font-family:inherit}
.btn:hover{border-color:var(--ink-3)}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover)}
.btn-success{background:var(--success);color:#fff;border-color:var(--success)}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-sm{padding:6px 12px;font-size:.8rem}
.btn-icon{padding:6px 8px;min-width:32px;justify-content:center}

/* Forms */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.form-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.form-group{display:flex;flex-direction:column;gap:5px}
.form-group.full{grid-column:1/-1}
.form-group label{font-size:.8rem;font-weight:600;color:var(--ink-2)}
.form-group input,.form-group select,.form-group textarea{padding:9px 12px;border:1px solid var(--border);border-radius:8px;font:inherit;font-size:.88rem;color:var(--ink);background:var(--surface);transition:border-color var(--transition)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.form-group textarea{resize:vertical;min-height:60px}
.form-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:16px}

/* Toolbar */
.toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.toolbar .search-input{flex:1;min-width:200px;padding:9px 14px;border:1px solid var(--border);border-radius:8px;font:inherit;font-size:.88rem;background:var(--surface)}
.toolbar .search-input:focus{outline:none;border-color:var(--primary)}

/* Kanban */
.kanban{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;overflow-x:auto;padding-bottom:8px}
.kanban-col{min-width:260px}
.kanban-col-header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:var(--radius) var(--radius) 0 0;background:var(--bg);border:1px solid var(--border);border-bottom:none}
.kanban-col-header h3{font-size:.82rem;font-weight:700}
.kanban-col-header .count{min-width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:.75rem;font-weight:700}
.kanban-col-body{display:flex;flex-direction:column;gap:10px;padding:12px;border:1px solid var(--border);border-top:none;border-radius:0 0 var(--radius) var(--radius);min-height:100px;background:rgba(255,255,255,.5)}
.os-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column;gap:8px;transition:box-shadow var(--transition)}
.os-card:hover{box-shadow:var(--shadow)}
.os-card-top{display:flex;justify-content:space-between;align-items:start;gap:8px}
.os-card-code{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3)}
.os-card h4{font-size:.9rem;font-weight:700;margin:0}
.os-card p{font-size:.82rem;color:var(--ink-2);margin:0}
.os-card .metrics{display:grid;grid-template-columns:1fr 1fr;gap:4px;font-size:.78rem;color:var(--ink-3)}
.os-card .metrics strong{color:var(--ink)}
.os-card-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}

/* Modal */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal-backdrop.open{display:flex}

/* Login overlay (Stage C) */
.login-overlay{position:fixed;inset:0;background:linear-gradient(135deg,#1e293b 0%,#0f172a 100%);z-index:300;display:none;align-items:center;justify-content:center;padding:20px}
.login-overlay.open{display:flex}
.login-box{background:var(--surface);border-radius:14px;padding:32px;width:100%;max-width:340px;box-shadow:0 20px 60px rgba(0,0,0,.4);text-align:center}
.login-brand{font-size:1.8rem;font-weight:800;letter-spacing:1px;color:var(--accent);margin-bottom:6px}
.login-sub{color:var(--ink-3);font-size:.9rem;margin-bottom:24px}
.login-pin{width:100%;padding:14px;font-size:1.6rem;text-align:center;letter-spacing:12px;border:2px solid var(--border);border-radius:10px;font-family:inherit;margin-bottom:14px;box-sizing:border-box}
.login-pin:focus{outline:none;border-color:var(--accent)}
.login-error{color:var(--danger);font-size:.85rem;min-height:1.2em;margin-top:8px}

/* Lojas (cards) page */
.lojas-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.loja-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px;transition:border-color .2s}
.loja-card:hover{border-color:var(--accent)}
.loja-card-header{display:flex;align-items:center;gap:12px}
.loja-logo{width:56px;height:56px;border-radius:10px;background:#f1f5f9;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--ink-3);overflow:hidden;flex-shrink:0}
.loja-logo img{width:100%;height:100%;object-fit:cover}
.loja-info{flex:1;min-width:0}
.loja-name{font-weight:700;font-size:1rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.loja-doc{font-size:.8rem;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.loja-tag{display:inline-block;font-size:.7rem;background:#e0f2fe;color:#075985;padding:2px 6px;border-radius:4px;margin-top:2px}
.loja-tag.filial{background:#fef3c7;color:#92400e}
.loja-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}
.loja-actions .btn{font-size:.8rem;padding:6px 10px}
.matriz-group{margin-bottom:24px}
.matriz-group-title{font-size:.9rem;color:var(--ink-3);font-weight:600;margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}

/* Master badge */
.master-badge{background:#fbbf24;color:#78350f;font-size:.7rem;font-weight:700;padding:2px 6px;border-radius:4px;margin-left:6px;text-transform:uppercase;letter-spacing:.5px}
.modal{background:var(--surface);border-radius:var(--radius-lg);width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}
.modal-header h2{font-size:1.05rem;font-weight:700}
.modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--ink-3);padding:4px 8px;line-height:1}
.modal-body{padding:22px}

/* PDV */
.pdv-layout{display:grid;grid-template-columns:1fr 360px;gap:20px;min-height:calc(100vh - var(--topbar-h) - 80px)}
.pdv-items{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;display:flex;flex-direction:column}
.pdv-item-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}
.pdv-item-row .item-name{flex:1;font-weight:600;font-size:.9rem}
.pdv-item-row .item-qty{width:50px;text-align:center}
.pdv-item-row .item-price{width:100px;text-align:right;font-weight:600}
.pdv-item-row .item-remove{background:none;border:none;color:var(--danger);cursor:pointer;font-size:1.1rem;padding:4px}
.pdv-summary{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;display:flex;flex-direction:column;gap:14px}
.pdv-total{font-size:2rem;font-weight:800;text-align:center;padding:16px 0;border-bottom:1px solid var(--border)}
.pdv-total small{display:block;font-size:.78rem;color:var(--ink-3);font-weight:600}

/* Empty state */
.empty{padding:40px 20px;text-align:center;color:var(--ink-3);font-size:.9rem}

/* Receipt / Cupom */
.receipt{font-family:'Courier New',monospace;max-width:320px;margin:0 auto;padding:16px;background:#fff;color:#000;font-size:13px;line-height:1.4}
.receipt h2{text-align:center;font-size:15px;margin-bottom:4px}
.receipt p{text-align:center;margin:2px 0;font-size:12px}
.receipt-divider{letter-spacing:1px;color:#999!important}
.receipt-info{text-align:left!important}
.receipt-info p{text-align:left!important;font-size:12px}
.receipt-items{width:100%;border-collapse:collapse;font-size:12px;margin:6px 0}
.receipt-items th,.receipt-items td{padding:3px 4px;font-size:12px}
.receipt-items th{border-bottom:1px dashed #999;font-weight:700;font-size:11px}
.receipt-totals{margin:8px 0}
.receipt-row{display:flex;justify-content:space-between;padding:2px 0;font-size:13px}
.receipt-grand-total{font-weight:800;font-size:16px;border-top:2px dashed #000;border-bottom:2px dashed #000;padding:6px 0;margin:6px 0}
.receipt-footer{text-align:center;margin-top:8px}
.receipt-footer p{font-size:12px;color:#333}
.receipt-actions{display:flex;gap:10px;justify-content:center;margin-top:18px;padding-top:14px;border-top:1px solid var(--border)}

/* Responsive */
@media(max-width:1024px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main-area{margin-left:0}
  .menu-toggle{display:block}
  .pdv-layout{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-grid.cols-3{grid-template-columns:1fr}
  .kanban{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
}
@media(max-width:640px){
  .content{padding:16px}
  .kpi-row{grid-template-columns:1fr 1fr}
  .dash-cards{grid-template-columns:1fr}
  .quick-actions{gap:6px}
  .quick-action{padding:8px 12px;font-size:.8rem}
}