.result-value-lg {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .ckd-stage-badge {
            display: inline-block;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1.1rem;
            letter-spacing: 0.5px;
        }
        .stage-G1 { background: #2ecc71; color: #fff; }
        .stage-G2 { background: #27ae60; color: #fff; }
        .stage-G3a { background: #f1c40f; color: #333; }
        .stage-G3b { background: #e67e22; color: #fff; }
        .stage-G4 { background: #e74c3c; color: #fff; }
        .stage-G5 { background: #8e44ad; color: #fff; }
        .risk-badge {
            display: inline-block;
            padding: 0.2rem 1rem;
            border-radius: 20px;
            font-weight: 500;
            font-size: 0.9rem;
        }
        .risk-low { background: #d5f5e3; color: #1a7a4a; }
        .risk-moderate { background: #fdebd0; color: #a04000; }
        .risk-high { background: #fadbd8; color: #922b21; }
        .risk-very-high { background: #e6b0aa; color: #641e16; }
        .gfr-meter {
            background: #f0f0f0;
            border-radius: 8px;
            height: 28px;
            width: 100%;
            position: relative;
            overflow: hidden;
            margin: 1rem 0;
        }
        .gfr-meter-fill {
            height: 100%;
            border-radius: 8px;
            background: linear-gradient(90deg, #2ecc71, #f1c40f, #e67e22, #e74c3c, #8e44ad);
            width: 0%;
            transition: width 0.6s ease;
        }
        .gfr-meter-label {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-weight: 600;
            font-size: 0.85rem;
            color: #333;
            text-shadow: 0 0 8px rgba(255,255,255,0.8);
        }
        .formula-card {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 1.2rem;
            border-left: 4px solid var(--primary-color);
            margin: 1rem 0;
        }
        .formula-card .formula-name {
            font-weight: 600;
            color: var(--accent-color);
        }
        .reference-citation {
            font-size: 0.9rem;
            color: #555;
            border-left: 3px solid #2ecc71;
            padding-left: 1rem;
            margin: 0.5rem 0;
        }
        .disclaimer-box {
            background-color: #fef9e7;
            border: 1px solid #f9e79f;
            border-radius: 8px;
            padding: 1.2rem;
            margin: 1.5rem 0;
            color: #7d6608;
        }
        .input-group-custom {
            margin-bottom: 0.75rem;
        }
        .example-preset {
            cursor: pointer;
            transition: all 0.2s;
            border: 1px solid #dee2e6;
            border-radius: 6px;
            padding: 0.4rem 0.8rem;
            font-size: 0.85rem;
            background: #fff;
            color: var(--primary-color);
        }
        .example-preset:hover {
            background: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }
        .unit-toggle .btn {
            font-size: 0.85rem;
            padding: 0.25rem 0.75rem;
        }
        .unit-toggle .btn.active {
            background: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }
        .stage-indicator {
            display: flex;
            justify-content: space-between;
            margin: 0.5rem 0;
            font-size: 0.75rem;
            color: #888;
        }
        .stage-indicator span {
            flex: 1;
            text-align: center;
        }
        @media (max-width: 768px) {
            .result-value-lg {
                font-size: 2rem;
            }
        }
        #race:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }
        .race-disabled-note {
            font-size: 0.8rem;
            color: #6c757d;
            margin-top: 0.2rem;
        }
        .creatinine-caution {
            font-size: 0.8rem;
            color: #856404;
            background-color: #fff3cd;
            border-radius: 4px;
            padding: 0.15rem 0.5rem;
            display: inline-block;
            margin-top: 0.2rem;
        }