:root {
            --primary: #2563eb;
            --primary-hover: #1d4ed8;
            --bg-main: #0a3764;
            --bg-card: #dacccc;
            --text-dark: #1e293b;
            --border-color: #cbd5e1;
        }
        *{margin:0; padding:0; box-sizing:border-box;}
        body {
            font-family: -apple-system, 
            BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: var(--bg-main);
            color: var(--text-dark);
            padding: 20px;
            display: flex;
            justify-content: center;
        }
        .container {
            width: 100%;
            max-width: 900px;
            background: var(--bg-card);
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
        }
        h1 {
            margin-top: 0;
            color: #0f172a;
            font-size: 24px;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 15px;
        }

        .layout-grid {
            display: grid;
            grid-template-columns: 40% 40%;
            gap: 5px;
            margin-bottom: 5px;
            width: 100%;
            align-items: start;
        }

        @media (max-width: 1024px) {
            .layout-grid { grid-template-columns: 1fr; }
        }

        .input-panel {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .output-panel {
            width: 100%;
            margin-left: 20%;
        }

        .form-group {
            margin-bottom: 5px;
        }

        label {
            display: inline;
            font-weight: 600;
            margin-bottom: 6px;
            font-size: 14px;
        }

        input, select {
            width: 100%;
            padding: 10px;
            margin: 0;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 15px;
            background-color: #fff;
        }

        input:focus, select:focus {
            outline: 2px solid var(--primary);
            border-color: transparent;
        }

        .results-panel {
            background-color: #f1f5f9;
            padding: 20px;
            border-radius: 8px;
            border-left: 5px solid var(--primary);
            width: 100%;
            box-sizing: border-box;
        }

        .results-title {
            font-size: 18px;
            font-weight: 700;
            margin-top: 0;
            margin-bottom: 15px;
            color: #0f172a;
        }

        .kpi-row {
            display: inline-grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
        }

        .kpi-card {
            background: var(--bg-card);
            padding: 15px;
            border-radius: 6px;
            text-align: center;
            border: 1px solid #e2e8f0;
        }
        .kpi-val {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
        }
        .kpi-lbl {
            font-size: 12px;
            color: #64748b;
            margin-top: 4px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .matrix-box, .order-box {
            background: var(--bg-card);
            padding: 15px;
            border-radius: 6px;
            border: 1px solid #e2e8f0;
            margin-bottom: 15px;
        }
        .matrix-box h3, .order-box h3
         { margin:0 0 10px 0; font-size:15px; 
            color:#475569; border-bottom:1px solid #f1f5f9;
             padding-bottom:5px; }
        ul {
            margin: 0;
            padding-left: 20px;
            font-size: 14px;
            line-height: 1.6;
        }
        .alert-error {
            background-color: #fef2f2;
            color: #991b1b;
            padding: 12px;
            border-radius: 6px;
            border: 1px solid #fca5a5;
            margin-bottom: 20px;
            font-size: 14px;
            display: none;
        }
        .order-highlight {
            font-size: 20px;
            font-weight: 700;
            color: #16a34a;
        }