* { margin:0; padding:0; box-sizing:border-box; }
:root {
  --bg-page:#F9F9F9; --bg-card:#FFFFFF; --primary:#014DB2; --primary-light:#EEF4FF; --primary-dark:#001645;
  --text-1:#1F2937; --text-2:#374151; --text-3:#6B7280; --text-4:#9CA3AF;
  --border:#E5E7EB; --border-2:#D1D5DB; --bg-hover:#F3F4F6; --bg-input:#FAFAFA;
  --success:#10B981; --success-bg:#ECFDF5; --warning:#F59E0B; --warning-bg:#FFFBEB;
  --danger:#EF4444; --danger-bg:#FEE2E2;
  --r-card:12px; --r-btn:8px; --r-input:8px; --r-chip:6px;
  --shadow-card:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-modal:0 20px 60px rgba(0,0,0,.25);
  --sidebar-w:220px; --topbar-h:56px;
  --font:'Inter','PingFang SC',-apple-system,sans-serif;
}
html,body{font-family:var(--font);font-size:14px;color:var(--text-1);background:var(--bg-page);height:100vh;overflow:hidden}

/* ===== HAMBURGER (mobile) ===== */
.hamburger{display:none;position:fixed;top:12px;left:12px;z-index:200;background:var(--bg-card);border:1px solid var(--border);border-radius:8px;width:40px;height:40px;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-card)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(3,22,45,.4);z-index:98}

/* ===== SIDEBAR ===== */
.sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);background:linear-gradient(180deg,#014DB2,#001645);display:flex;flex-direction:column;z-index:100;color:#fff;transition:transform .25s ease}
.sidebar-logo{display:flex;align-items:center;gap:10px;padding:18px 20px;height:var(--topbar-h)}
.logo-icon{width:32px;height:32px;background:rgba(255,255,255,.15);border-radius:8px;display:flex;align-items:center;justify-content:center}
.logo-text{font-size:15px;font-weight:700}
.sidebar-nav{flex:1;padding:8px 12px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;margin-bottom:2px;border-radius:var(--r-btn);color:rgba(255,255,255,.7);text-decoration:none;cursor:pointer;font-size:13px;font-weight:500;transition:all .15s}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-item.active{color:var(--primary);background:#fff}
.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,.1)}
.user-mini{display:flex;align-items:center;gap:10px}
.avatar-mini{width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.2);color:#fff;font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center}
.user-name-mini{color:#fff;font-size:13px;font-weight:600}
.user-role-mini{color:rgba(255,255,255,.5);font-size:11px}

/* ===== MAIN ===== */
.main{margin-left:var(--sidebar-w);height:100vh;display:flex;flex-direction:column;transition:margin-left .25s ease}
.topbar{height:var(--topbar-h);background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;flex-shrink:0}
.page-title{font-size:18px;font-weight:700}
.topbar-right{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--r-input);padding:0 12px;height:36px;width:280px}
.search-box input{border:none;background:none;outline:none;font-size:13px;color:var(--text-2);flex:1;font-family:var(--font)}
.btn-voice-top{display:flex;align-items:center;gap:6px;background:linear-gradient(135deg,#014DB2,#001645);color:#fff;border:none;padding:0 16px;height:36px;border-radius:var(--r-btn);font-size:13px;font-weight:600;cursor:pointer;font-family:var(--font);white-space:nowrap}
.btn-voice-top:hover{opacity:.88}
.btn-voice-top-mobile{display:none}
.avatar-top{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.page-container{flex:1;overflow-y:auto;padding:20px 24px;overflow-x:hidden}

/* ===== CARDS & BUTTONS ===== */
.card{background:var(--bg-card);border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:16px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--r-btn);font-size:13px;font-weight:500;cursor:pointer;border:none;font-family:var(--font);transition:all .15s}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{opacity:.88}
.btn-ghost{background:var(--bg-hover);color:var(--text-2)}.btn-ghost:hover{background:#E5E7EB}
.btn-danger{background:var(--danger);color:#fff}
.btn-success{background:var(--success);color:#fff}
.btn-sm{padding:6px 12px;font-size:12px}
.btn-block{width:100%}
.chip{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:var(--r-chip);font-size:12px;font-weight:500}
.chip-blue{background:var(--primary-light);color:var(--primary)}
.chip-green{background:var(--success-bg);color:var(--success)}
.chip-amber{background:var(--warning-bg);color:var(--warning)}
.chip-red{background:var(--danger-bg);color:var(--danger)}
.chip-gray{background:var(--bg-hover);color:var(--text-3)}
.chip-add{background:var(--bg-hover);color:var(--text-3);border:1px dashed var(--border-2);cursor:pointer}.chip-add:hover{border-color:var(--primary);color:var(--primary)}
.input{width:100%;height:38px;border:1px solid var(--border);border-radius:var(--r-input);padding:0 12px;font-size:14px;color:var(--text-1);background:#fff;outline:none;font-family:var(--font)}
.input:focus{border-color:var(--primary)}
.input::placeholder{color:var(--text-4)}
.label{font-size:13px;font-weight:500;color:var(--text-2);margin-bottom:6px;display:block}
.tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:16px;overflow-x:auto}
.tab{padding:10px 16px;font-size:14px;font-weight:500;color:var(--text-3);cursor:pointer;border-bottom:2px solid transparent;transition:all .15s;white-space:nowrap}
.tab:hover{color:var(--text-1)}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;font-size:13px}
th{color:var(--text-3);font-weight:500;border-bottom:1px solid var(--border)}
td{color:var(--text-2);border-bottom:1px solid var(--border)}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--bg-input)}
.amount-red{color:var(--danger);font-weight:600}
.text-primary{color:var(--primary)}.text-danger{color:var(--danger)}.text-success{color:var(--success)}.text-muted{color:var(--text-3)}

/* ===== HOME ===== */
.voice-hero{background:linear-gradient(135deg,#014DB2,#001645);border-radius:var(--r-card);padding:24px;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:32px}
.voice-hero-left{flex:1}
.voice-hero-title{font-size:16px;font-weight:600;margin-bottom:4px;opacity:.9}
.voice-hero-desc{font-size:13px;opacity:.6;margin-bottom:16px}
.voice-chips{display:flex;flex-wrap:wrap;gap:8px}
.voice-chip{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);padding:6px 12px;border-radius:20px;font-size:12px;cursor:pointer;transition:all .15s;white-space:nowrap}
.voice-chip:hover{background:rgba(255,255,255,.2)}
.voice-mic{width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.15);border:2px solid rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:all .2s}
.voice-mic:hover{background:rgba(255,255,255,.25);transform:scale(1.05)}
.voice-mic-big{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,#014DB2,#001645);display:flex;align-items:center;justify-content:center;cursor:pointer;margin:0 auto;transition:all .2s}
.voice-mic-big:hover{transform:scale(1.05)}
.voice-mic-big.recording{animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(1,77,178,.4)}50%{box-shadow:0 0 0 16px rgba(1,77,178,0)}}
.kpi-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:16px}
.kpi-card{background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:16px}
.kpi-label{font-size:12px;color:var(--text-3);margin-bottom:8px}
.kpi-value{font-size:22px;font-weight:700}
.kpi-sub{font-size:11px;margin-top:4px}
.home-grid{display:grid;grid-template-columns:1fr 280px;gap:16px}
.recent-list{display:flex;flex-direction:column}
.recent-item{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .15s}
.recent-item:hover{background:var(--bg-input)}
.recent-item:last-child{border-bottom:none}
.recent-left{display:flex;align-items:center;gap:12px}
.recent-type{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px}
.recent-info{display:flex;flex-direction:column;gap:2px}
.recent-title{font-size:13px;font-weight:500}
.recent-meta{font-size:12px;color:var(--text-3)}
.recent-amount{font-size:14px;font-weight:600}

/* ===== PRODUCTS ===== */
.prod-layout{display:grid;grid-template-columns:1fr 360px;gap:16px}
.prod-card{padding:0;overflow:hidden}
.prod-img-thumb{width:40px;height:40px;border-radius:6px;background:linear-gradient(135deg,#E0E7FF,#C7D2FE);display:flex;align-items:center;justify-content:center;font-size:18px}
.add-panel{position:sticky;top:0;max-height:calc(100vh - var(--topbar-h) - 40px);overflow-y:auto}
.add-panel-title{font-size:18px;font-weight:700}
.add-panel-sub{font-size:12px;color:var(--text-3);margin-top:2px}
.img-upload{width:100%;height:80px;background:#F9FAFB;border:1.5px dashed var(--border-2);border-radius:var(--r-input);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;transition:all .15s;margin-bottom:12px}
.img-upload:hover{border-color:var(--primary);background:var(--primary-light)}
.img-upload-text{font-size:13px;font-weight:500;color:var(--text-3)}
.img-upload-hint{font-size:11px;color:var(--text-4)}
.field-group{margin-bottom:12px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.matrix-table{width:100%;border-collapse:collapse;border:1px solid var(--border);border-radius:6px;overflow:hidden;font-size:12px}
.matrix-table th{background:var(--bg-input);padding:8px 10px;font-size:11px;font-weight:500;color:var(--text-3)}
.matrix-table td{padding:8px 10px;border-bottom:1px solid var(--border);color:var(--text-2)}
.matrix-table tr:nth-child(even) td{background:#FAFAFA}
.price-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* ===== ORDERS ===== */
.order-layout{display:grid;grid-template-columns:1fr 360px;gap:16px}
.order-search-wrap{position:relative}
.order-search{width:100%;height:38px;border:1px solid var(--border);border-radius:var(--r-input);padding:0 12px 0 36px;font-size:13px;outline:none;font-family:var(--font)}
.order-search-wrap svg{position:absolute;left:12px;top:11px}
.detail-panel{position:sticky;top:0}
.detail-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}
.detail-label{color:var(--text-3)}
.detail-value{font-weight:500}
.detail-total{display:flex;justify-content:space-between;align-items:center;padding:12px 0;margin-top:8px;border-top:2px solid var(--border)}
.detail-total-label{font-size:14px;font-weight:600}
.detail-total-value{font-size:20px;font-weight:700;color:var(--primary)}
.stock-tip{display:flex;align-items:center;gap:6px;padding:10px 12px;background:var(--primary-light);border-radius:var(--r-btn);font-size:12px;color:var(--primary);margin-top:12px}
.stock-tip svg{flex-shrink:0}

/* ===== FINANCE ===== */
.finance-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
.finance-card{padding:16px}
.finance-card-label{font-size:12px;color:var(--text-3);margin-bottom:8px}
.finance-card-value{font-size:20px;font-weight:700}
.card-actions{margin-top:8px;display:flex;gap:8px}

/* ===== STATISTICS ===== */
.stat-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}

/* ===== CUSTOMER PAGE ===== */
.customer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}
.debt-positive{color:var(--danger);font-weight:700}
.debt-negative{color:var(--success);font-weight:700}
.debt-zero{color:var(--text-3)}

/* ===== MODALS ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(3,22,45,.45);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease;padding:16px}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal-card{background:#fff;border-radius:16px;width:520px;max-width:100%;max-height:85vh;display:flex;flex-direction:column;box-shadow:var(--shadow-modal);animation:slideUp .25s ease}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--border)}
.modal-header h2{font-size:18px;font-weight:700}
.modal-close{background:none;border:none;font-size:24px;color:var(--text-3);cursor:pointer;padding:0 4px}.modal-close:hover{color:var(--text-1)}
.modal-body{padding:20px 24px;overflow-y:auto;flex:1}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.voice-hint{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--warning)}
.modal-actions{display:flex;gap:8px}
.btn-cancel{padding:8px 20px;border-radius:var(--r-btn);font-size:14px;font-weight:500;cursor:pointer;border:1px solid var(--border);background:#fff;color:var(--text-2);font-family:var(--font)}.btn-cancel:hover{background:var(--bg-hover)}
.btn-confirm{padding:8px 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;cursor:pointer;border:none;background:var(--primary);color:#fff;font-family:var(--font)}.btn-confirm:hover{opacity:.88}

/* ===== PAYMENT MODAL ===== */
.payment-info{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.payment-info-item{text-align:center;padding:12px;background:var(--bg-input);border-radius:8px}
.payment-info-label{font-size:11px;color:var(--text-3);margin-bottom:4px}
.payment-info-value{font-size:18px;font-weight:700}
.payment-actions{display:flex;gap:8px;margin-top:12px}

/* ===== ORDER ITEM ROW ===== */
.order-item-row{display:flex;gap:8px;align-items:center;padding:8px;background:var(--bg-input);border-radius:var(--r-input);margin-bottom:8px;flex-wrap:wrap}
.select{width:100%;height:38px;border:1px solid var(--border);border-radius:var(--r-input);padding:0 8px;font-size:13px;color:var(--text-1);background:#fff;outline:none;font-family:var(--font)}
.select:focus{border-color:var(--primary)}

/* ===== TOAST ===== */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--text-1);color:#fff;padding:12px 24px;border-radius:8px;font-size:14px;font-weight:500;z-index:2000;opacity:0;transition:all .3s ease;pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* ===== SCROLLBARS ===== */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-thumb{background:#D1D5DB;border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:#9CA3AF}

/* ===== TABLE WRAPPER (mobile) ===== */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ============================================================ */
/*                     MOBILE RESPONSIVE                         */
/* ============================================================ */
@media (max-width: 768px) {
  .hamburger{display:flex}
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.show{display:block}
  .main{margin-left:0}
  .main.mobile-menu-open{margin-left:0}
  .topbar{padding:0 12px}
  .page-title{font-size:16px}
  .search-box{display:none}
  .btn-voice-top{display:none}
  .btn-voice-top-mobile{display:flex;align-items:center;gap:4px;background:linear-gradient(135deg,#014DB2,#001645);color:#fff;border:none;padding:0 12px;height:36px;border-radius:var(--r-btn);font-size:12px;font-weight:600;cursor:pointer;font-family:var(--font)}
  .page-container{padding:12px}

  /* KPI */
  .kpi-grid{grid-template-columns:repeat(2,1fr);gap:8px}
  .kpi-value{font-size:18px}
  .kpi-card{padding:12px}

  /* Home */
  .voice-hero{flex-direction:column;padding:20px;gap:16px;text-align:center}
  .voice-hero-title{font-size:15px}
  .voice-hero-desc{font-size:12px}
  .voice-chips{gap:6px}
  .voice-chip{padding:4px 10px;font-size:11px}
  .voice-mic{width:56px;height:56px}
  .home-grid{grid-template-columns:1fr}

  /* Products */
  .prod-layout{grid-template-columns:1fr;gap:12px}
  .add-panel{position:static;max-height:none}

  /* Orders */
  .order-layout{grid-template-columns:1fr;gap:12px}
  .detail-panel{position:static}

  /* Finance */
  .finance-summary{grid-template-columns:repeat(2,1fr);gap:8px}

  /* Statistics */
  .stat-summary{grid-template-columns:repeat(2,1fr);gap:8px}

  /* Tables */
  table{font-size:12px}
  th,td{padding:8px 6px;font-size:11px}
  .search-box{display:none}

  /* Modal - sticky footer fix */
  .modal-card{max-height:92vh;border-radius:16px 16px 0 0;margin-top:auto}
  .modal-header{padding:16px;flex-shrink:0}
  .modal-body{padding:16px;flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}
  .modal-footer{padding:12px 16px;flex-shrink:0;position:sticky;bottom:0;background:#fff;box-shadow:0 -2px 8px rgba(0,0,0,.06);border-radius:0}
  .modal-header h2{font-size:16px}

  /* Customer page */
  .customer-header{flex-direction:column;align-items:flex-start}

  /* Order item row */
  .order-item-row{flex-direction:column;align-items:stretch;gap:4px}
  .order-item-row select,.order-item-row input{width:100%}
  .order-item-row .amount-cell{text-align:left;width:100%}
}