:root{--color-primary:#0d9488;--color-primary-dark:#0f766e;--color-primary-light:#ccfbf1;--color-danger:#dc2626;--color-danger-light:#fee2e2;--color-warning:#d97706;--color-warning-light:#fef3c7;--color-bg:#f4f6f7;--color-text:#1f2937;--color-text-muted:#6b7280;--color-border:#e5e7eb;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0}body{background:var(--color-bg);color:var(--color-text)}button{cursor:pointer;font-family:inherit}input,select{font-family:inherit}.btn{border:1px solid #0000;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;transition:all .15s}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-primary:disabled{cursor:not-allowed;background:#9ca3af}.btn-outline{border-color:var(--color-border);color:var(--color-text);background:#fff}.btn-outline:hover{border-color:var(--color-primary);color:var(--color-primary)}.btn-danger{border-color:var(--color-danger);color:var(--color-danger);background:#fff}.btn-danger:hover{background:var(--color-danger);color:#fff}.card{border:1px solid var(--color-border);background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000000a}.badge{text-transform:uppercase;letter-spacing:.03em;border-radius:999px;padding:2px 8px;font-size:11px;font-weight:700;display:inline-block}.badge-controlado{background:var(--color-warning-light);color:var(--color-warning)}.badge-vencido{background:var(--color-danger-light);color:var(--color-danger)}.error-message{background:var(--color-danger-light);color:var(--color-danger);border-left:3px solid var(--color-danger);border-radius:8px;padding:12px 14px;font-size:14px}.field{flex-direction:column;gap:6px;display:flex}.field label{color:var(--color-text-muted);font-size:13px;font-weight:600}.field input,.field select{border:1px solid var(--color-border);border-radius:8px;padding:10px 12px;font-size:14px}.field input:focus,.field select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light);outline:none}.app-shell{width:100%;height:100vh;display:flex}.app-sidebar{color:#fff;background:#134e4a;flex-direction:column;flex-shrink:0;width:220px;padding:20px 0;display:flex}.app-sidebar-brand{border-bottom:1px solid 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h1{color:var(--color-primary);margin-bottom:6px;font-size:30px;font-weight:700}.login-header p{color:var(--color-text-muted);margin:0;font-size:14px}.login-form{flex-direction:column;gap:18px;display:flex}.login-button{margin-top:4px;padding:13px;font-size:15px}.dashboard-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:28px;display:grid}.stat-tile{flex-direction:column;gap:6px;padding:18px 20px;display:flex}.stat-tile-label{text-transform:uppercase;letter-spacing:.03em;color:var(--color-text-muted);font-size:12px;font-weight:700}.stat-tile-value{font-size:28px;font-weight:700}.stat-tile.alerta .stat-tile-value{color:var(--color-danger)}.stat-tile.aviso .stat-tile-value{color:var(--color-warning)}.dashboard-section{margin-bottom:28px}.dashboard-section h3{margin-bottom:12px}.dashboard-quick-links{flex-wrap:wrap;gap:10px;display:flex}.modal-overlay{z-index:50;background:#0f17168c;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-box{background:#fff;border-radius:12px;width:100%;max-width:480px;max-height:90vh;padding:24px;overflow-y:auto;box-shadow:0 20px 60px #0000004d}.modal-title{margin:0 0 4px;font-size:18px;font-weight:700}.modal-subtitle{color:var(--color-text-muted);margin:0 0 20px;font-size:13px}.modal-actions{justify-content:flex-end;gap:10px;margin-top:20px;display:flex}.venta-layout{grid-template-columns:1fr 380px;align-items:start;gap:24px;height:100%;display:grid}.venta-search{margin-bottom:18px}.venta-search input{border:1px solid var(--color-border);border-radius:10px;width:100%;padding:14px 16px;font-size:16px}.venta-search input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light);outline:none}.producto-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;display:grid}.producto-card{text-align:left;border:1px solid var(--color-border);cursor:pointer;background:#fff;border-radius:10px;flex-direction:column;gap:6px;padding:14px;transition:all .15s;display:flex}.producto-card:hover{border-color:var(--color-primary);box-shadow:0 2px 8px #0d948826}.producto-card:disabled{opacity:.5;cursor:not-allowed}.producto-nombre{font-size:14px;font-weight:600;line-height:1.3}.producto-precio{color:var(--color-primary);font-size:15px;font-weight:700}.producto-existencia{color:var(--color-text-muted);font-size:12px}.carrito-panel{flex-direction:column;max-height:calc(100vh - 56px);padding:18px;display:flex;position:sticky;top:0}.carrito-titulo{margin:0 0 14px;font-size:16px;font-weight:700}.carrito-items{flex-direction:column;flex:1;gap:10px;margin-bottom:14px;display:flex;overflow-y:auto}.carrito-item{border:1px solid 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