@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#0a0e1a;--bg-secondary:#111827;--bg-card:#1a1f35;--bg-card-hover:#222842;--bg-input:#1e2440;--border:#2a3050;--border-focus:#3b82f6;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--accent-blue:#3b82f6;--accent-blue-hover:#2563eb;--accent-green:#10b981;--accent-green-hover:#059669;--accent-red:#ef4444;--accent-red-hover:#dc2626;--accent-yellow:#f59e0b;--accent-purple:#8b5cf6;--accent-cyan:#06b6d4;--gradient-blue:linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);--gradient-green:linear-gradient(135deg, #10b981 0%, #059669 100%);--gradient-purple:linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);--gradient-red:linear-gradient(135deg, #ef4444 0%, #dc2626 100%);--gradient-cyan:linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);--gradient-card:linear-gradient(145deg, #1a1f35e6 0%, #111827e6 100%);--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 14px #0006;--shadow-lg:0 10px 30px #00000080;--shadow-glow-blue:0 0 20px #3b82f64d;--shadow-glow-green:0 0 20px #10b9814d;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:20px;--sidebar-width:260px;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.35s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:14px}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}a{color:var(--accent-blue);text-decoration:none}a:hover{color:var(--accent-blue-hover)}.btn{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-normal);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-family:inherit;font-size:.9rem;font-weight:600;display:inline-flex}.btn:active{transform:scale(.97)}.btn-primary{background:var(--gradient-blue);color:#fff;box-shadow:0 2px 8px #3b82f64d}.btn-primary:hover{box-shadow:var(--shadow-glow-blue);transform:translateY(-1px)}.btn-success{background:var(--gradient-green);color:#fff;box-shadow:0 2px 8px #10b9814d}.btn-success:hover{box-shadow:var(--shadow-glow-green);transform:translateY(-1px)}.btn-danger{background:var(--gradient-red);color:#fff}.btn-danger:hover{opacity:.9}.btn-ghost{color:var(--text-secondary);border:1px solid var(--border);background:0 0}.btn-ghost:hover{background:var(--bg-card);color:var(--text-primary)}.btn-sm{padding:6px 14px;font-size:.8rem}.btn-lg{padding:14px 28px;font-size:1rem}.input-group{flex-direction:column;gap:6px;display:flex}.input-group label{color:var(--text-secondary);font-size:.85rem;font-weight:500}.input,select,textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);transition:border-color var(--transition-fast);outline:none;width:100%;padding:10px 14px;font-family:inherit;font-size:.9rem}.input:focus,select:focus,textarea:focus{border-color:var(--accent-blue);box-shadow:0 0 0 3px #3b82f626}.input::placeholder{color:var(--text-muted)}select{cursor:pointer}select option{background:var(--bg-secondary)}.card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all var(--transition-normal);padding:24px}.card:hover{border-color:#3b82f64d}.stat-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--transition-normal);padding:24px;position:relative;overflow:hidden}.stat-card:before{content:"";height:3px;position:absolute;top:0;left:0;right:0}.stat-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.stat-card.blue:before{background:var(--gradient-blue)}.stat-card.green:before{background:var(--gradient-green)}.stat-card.purple:before{background:var(--gradient-purple)}.stat-card.red:before{background:var(--gradient-red)}.stat-card.cyan:before{background:var(--gradient-cyan)}.stat-card.yellow:before{background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%)}.stat-card .stat-icon{border-radius:var(--radius-md);justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:16px;font-size:1.4rem;display:flex}.stat-card.blue .stat-icon{color:var(--accent-blue);background:#3b82f626}.stat-card.green .stat-icon{color:var(--accent-green);background:#10b98126}.stat-card.purple .stat-icon{color:var(--accent-purple);background:#8b5cf626}.stat-card.red .stat-icon{color:var(--accent-red);background:#ef444426}.stat-card.cyan .stat-icon{color:var(--accent-cyan);background:#06b6d426}.stat-card.yellow .stat-icon{color:var(--accent-yellow);background:#f59e0b26}.stat-card .stat-value{margin-bottom:4px;font-size:1.8rem;font-weight:800;line-height:1.2}.stat-card .stat-label{color:var(--text-secondary);font-size:.85rem}.table-container{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}.table-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.table-header h2{font-size:1.1rem;font-weight:700}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%}thead th{text-align:left;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);border-bottom:1px solid var(--border);white-space:nowrap;background:#0003;padding:14px 20px;font-size:.75rem;font-weight:600}tbody td{white-space:nowrap;border-bottom:1px solid #2a305080;padding:14px 20px;font-size:.9rem}tbody tr{transition:background var(--transition-fast)}tbody tr:hover{background:#3b82f60d}tbody tr:last-child td{border-bottom:none}.badge{border-radius:20px;align-items:center;gap:4px;padding:4px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.badge-purchase{color:var(--accent-blue);background:#3b82f626}.badge-return{color:var(--accent-yellow);background:#f59e0b26}.badge-sale{color:var(--accent-green);background:#10b98126}.badge-write_off{color:var(--accent-red);background:#ef444426}.badge-admin{color:var(--accent-purple);background:#8b5cf626}.badge-warehouse_manager{color:var(--accent-cyan);background:#06b6d426}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#0009;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xl);width:90%;max-width:500px;box-shadow:var(--shadow-lg);padding:32px;animation:.3s slideUp}.modal h2{margin-bottom:24px;font-size:1.2rem}.modal-actions{justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.sidebar{width:var(--sidebar-width);border-right:1px solid var(--border);z-index:100;transition:transform var(--transition-normal);background:linear-gradient(#111827 0%,#0a0e1a 100%);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-logo{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:24px;display:flex}.sidebar-logo .logo-icon{border-radius:var(--radius-md);background:var(--gradient-green);justify-content:center;align-items:center;width:40px;height:40px;font-size:1.3rem;display:flex}.sidebar-logo h1{font-size:1.1rem;font-weight:800}.sidebar-logo span{color:var(--text-muted);font-size:.7rem;font-weight:400}.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto}.nav-section{margin-bottom:24px}.nav-section-title{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:8px;padding:0 12px;font-size:.7rem;font-weight:600}.nav-link{border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);cursor:pointer;align-items:center;gap:12px;padding:10px 14px;font-size:.9rem;font-weight:500;text-decoration:none;display:flex}.nav-link:hover{color:var(--text-primary);background:#3b82f614}.nav-link.active{color:var(--accent-blue);background:#3b82f61f;font-weight:600}.nav-link .nav-icon{text-align:center;width:20px;font-size:1rem}.sidebar-footer{border-top:1px solid var(--border);padding:16px}.user-info{border-radius:var(--radius-md);align-items:center;gap:12px;padding:10px;display:flex}.user-avatar{background:var(--gradient-purple);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:.85rem;font-weight:700;display:flex}.user-info .user-name{font-size:.85rem;font-weight:600}.user-info .user-role{color:var(--text-muted);font-size:.7rem}.main-content{margin-left:var(--sidebar-width);min-height:100vh}.topbar{z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:#0a0e1acc;justify-content:space-between;align-items:center;padding:16px 32px;display:flex;position:sticky;top:0}.topbar h1{font-size:1.3rem;font-weight:800}.topbar-actions{align-items:center;gap:12px;display:flex}.page-content{padding:32px}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:32px;display:grid}.grid-2{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.form-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.form-grid .full-width{grid-column:1/-1}.login-page{background:radial-gradient(ellipse at 50% 0%, #3b82f61f 0%, transparent 60%), var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-xl);width:90%;max-width:420px;box-shadow:var(--shadow-lg);padding:48px 40px}.login-card .login-header{text-align:center;margin-bottom:36px}.login-card .login-header .logo-big{border-radius:var(--radius-lg);background:var(--gradient-green);justify-content:center;align-items:center;width:64px;height:64px;margin:0 auto 16px;font-size:2rem;display:flex}.login-card .login-header h1{font-size:1.5rem;font-weight:800}.login-card .login-header p{color:var(--text-muted);margin-top:4px;font-size:.9rem}.login-form{flex-direction:column;gap:20px;display:flex}.login-form .btn{width:100%;margin-top:8px;padding:12px;font-size:1rem}.login-error{border-radius:var(--radius-md);color:var(--accent-red);background:#ef44441a;border:1px solid #ef44444d;padding:10px 14px;font-size:.85rem}.empty-state{text-align:center;color:var(--text-muted);padding:60px 20px}.empty-state .empty-icon{margin-bottom:16px;font-size:3rem}.empty-state p{font-size:1rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.fade-in{animation:.4s fadeIn}.slide-up{animation:.4s slideUp}.spinner{border:3px solid var(--border);border-top-color:var(--accent-blue);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-page{flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:60vh;display:flex}@media (max-width:768px){:root{--sidebar-width:0px}.sidebar{transform:translate(-260px)}.sidebar.open{width:260px;transform:translate(0)}.topbar{padding:12px 16px}.page-content{padding:16px}.form-grid,.grid-2,.grid-3{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.modal{width:95%;padding:24px}}.profit-card{border-radius:var(--radius-xl);background:linear-gradient(135deg,#10b9811a 0%,#3b82f61a 100%);border:1px solid #10b9814d;padding:32px}.profit-card .profit-value{background:linear-gradient(135deg, var(--accent-green), var(--accent-blue));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:2.5rem;font-weight:800}.profit-card.negative{border-color:#ef44444d}.profit-card.negative .profit-value{background:linear-gradient(135deg, var(--accent-red), var(--accent-yellow));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.filter-bar{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-lg);flex-wrap:wrap;align-items:flex-end;gap:12px;margin-bottom:20px;padding:20px;display:flex}.filter-bar .input-group{min-width:160px}