/* --- SCOPED CSS SYSTEM --- */
        
        :root {
            /* Extracted/Matched from your main.css */
            --snd-font: 'Inter', sans-serif;
            --snd-primary: #2563eb;       
            --snd-primary-hover: #1d4ed8;
            --snd-bg: #f8fafc;
            --snd-card-bg: #ffffff;
            --snd-text-main: #1e293b;
            --snd-text-muted: #64748b;
            --snd-border: #e2e8f0;        /* Matching your css border */
            
            /* Status Colors */
            --snd-success-bg: #dcfce7;
            --snd-success-text: #166534;
            --snd-danger-bg: #fee2e2;
            --snd-danger-text: #991b1b;
            --snd-warn-bg: #fff7ed;
            --snd-warn-text: #9a3412;
        }

        body {
            font-family: var(--snd-font);
            background-color: white;
            margin: 0;
            padding: 20px;
            color: var(--snd-text-main);
        }

        #snd-calc * {
            box-sizing: border-box;
        }

        #snd-calc {
            max-width: 1280px; /* Slightly wider for 50/50 split */
            margin: 0 auto;
            line-height: 1.5;
        }

        /* 4. Layout Grid - Equal Columns */
        #snd-calc .grid-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            align-items: start;
        }

        @media (min-width: 992px) {
            #snd-calc .grid-container {
                grid-template-columns: 1fr 1fr; /* 50/50 Split */
            }
        }

        /* Cards */
        #snd-calc .card {
            background: var(--snd-card-bg);
            border-radius: 8px; /* Matched main.css radius */
            box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
            border: 1px solid var(--snd-border);
            overflow: hidden;
            margin-bottom: 24px;
        }

        #snd-calc .card-header {
            padding: 16px 20px;
            border-bottom: 1px solid var(--snd-border);
            background-color: #f8fafc;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 3. Accordion Styles */
        #snd-calc .accordion-trigger {
            cursor: pointer;
            transition: background 0.2s;
            user-select: none;
        }
        #snd-calc .accordion-trigger:hover {
            background-color: #f1f5f9;
        }
        #snd-calc .accordion-icon {
            transition: transform 0.3s ease;
        }
        #snd-calc .collapsed .accordion-icon {
            transform: rotate(-90deg);
        }
        #snd-calc .card-body {
            padding: 20px;
            /* background: #d6eaff; */
        }
        #snd-calc .card-body.hidden {
            display: none;
        }

        /* 8. Inputs - Matched to main.css .snd-input */
        #snd-calc .snd-input {
            width: 100%;
            padding: 0.5rem 0.75rem;
            font-size: 1rem;
            line-height: 1.5;
            color: var(--snd-text-main);
            background-color: #fff;
            background-clip: padding-box;
            border: 1px solid var(--snd-border);
            border-radius: 0.375rem;
            transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
            font-family: var(--snd-font);
        }

        #snd-calc .snd-input:focus {
            outline: none;
            border-color: var(--snd-primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); /* Blue ring */
        }
        
        #snd-calc label {
            display: block;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--snd-text-main);
            margin-bottom: 0.25rem;
        }

        /* Buttons */
        #snd-calc .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 16px;
            border-radius: 6px;
            font-weight: 500;
            cursor: pointer;
            border: none;
            font-size: 14px;
            transition: all 0.2s;
            font-family: var(--snd-font);
        }

        #snd-calc .btn-primary {
            background-color: var(--snd-primary);
            color: white;
            width: 100%;
        }
        #snd-calc .btn-primary:hover { background-color: var(--snd-primary-hover); }


        #snd-calc .btn-danger {
            background-color: #b3021d;
            color: white;
            width: 100%;
        }
        #snd-calc .btn-danger:hover {background-color: #880418;}


        
        #snd-calc .btn-sm { padding: 4px 10px; font-size: 12px; }
        #snd-calc .btn-outline {background: #e2e8f0;border: 1px solid var(--snd-border);color: var(--snd-text-muted);}
        #snd-calc .btn-outline:hover {border-color: #d0d8e3;color: var(--snd-text-main);}

        /* Tables */
        #snd-calc .comp-table, #snd-calc .stack-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        #snd-calc td, #snd-calc th { padding: 10px; border-bottom: 1px solid var(--snd-border); }
        #snd-calc th { text-align: left; background: #f8fafc; color: var(--snd-text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }
        
        #snd-calc .comp-val { text-align: right; font-family: var(--snd-font); font-variant-numeric: tabular-nums; }
        
        /* Stack Rows */
        #snd-calc .row-sold { opacity: 0.5; text-decoration: line-through; background: #f8fafc; }
        #snd-calc .row-affordable { background-color: #f0fdf4; } /* Very light green */

        /* Tags */
        #snd-calc .tag {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 9999px;
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            cursor: pointer;
            user-select: none;
        }
        #snd-calc .tag-avail { background: var(--snd-success-bg); color: var(--snd-success-text); }
        #snd-calc .tag-sold { background: var(--snd-danger-bg); color: var(--snd-danger-text); }

        /* Modal */
        #snd-modal-overlay {
            position: fixed; top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.5);
            display: flex; align-items: center; justify-content: center;
            z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.2s;
        }
        #snd-modal-overlay.active { opacity: 1; pointer-events: auto; }
        #snd-modal { background: white; width: 100%; max-width: 500px; border-radius: 12px; padding: 24px; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }
        
        /* Utility */
        .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .text-right {text-align: right !important;}
        .text-bold { font-weight: 700; }
        .mt-4 { margin-top: 16px; }
        .mb-2 { margin-bottom: 8px; }
        .input-group { margin-bottom: 16px; }

        /* 6. Overview Colors */
        .overview-item {padding: 12px;border-bottom: 1px solid var(--snd-border);display: flex;justify-content: space-between;align-items: start;}
        .overview-good { background-color: white; border-left: 4px solid var(--snd-success-text); }
        .overview-bad { background-color: #fff1f2; border-left: 4px solid var(--snd-danger-text); } /* Light Red for over budget */
        .overview-sold { background-color: #f1f5f9; border-left: 4px solid #64748b; }



/* Loading Toggle Switch */
.loading-toggle {
    display: flex;
    background: #e6e6e6;
    padding: 2px;
    border-radius: 6px;
    border: 1px solid var(--snd-border);
}

.loading-toggle input {
    display: none;
}

.loading-toggle label {
    padding: 2px 10px;
    font-size: 12px !important;
    cursor: pointer;
    border-radius: 4px;
    margin-bottom: 0 !important;
    transition: all 0.2s;
}

.loading-toggle input:checked + label {
    background: white;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    color: var(--snd-primary);
}