.equalization-tool {
    --eq-primary: #023d5e;
    --eq-soft-blue: #eef6ff;
    --eq-soft-green: #edfdf4;
    --eq-soft-yellow: #fff8e5;
    --eq-border: #e9ecef;
}

.equalization-tool .tool-title {
    line-height: 1.35;
}

.equalization-tool .section-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #1f2937;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.equalization-tool .section-title::before {
    content: "";
    width: 5px;
    height: 18px;
    border-radius: 999px;
    background: var(--eq-primary);
    display: inline-block;
}

.equalization-tool .formula-box {
    background: var(--eq-soft-blue);
    border: 1px solid #cfe2ff;
    border-radius: .75rem;
    padding: 1rem;
    font-size: .92rem;
}

.equalization-tool .formula-box code {
    color: #023d5e;
    background: transparent;
    padding: 0;
    font-weight: 700;
}

.equalization-tool .result-card {
    border: 1px solid var(--eq-border);
    border-radius: 1rem;
    padding: 1rem;
    height: 100%;
    background: #fff;
}

.equalization-tool .result-label {
    font-size: .85rem;
    color: #6c757d;
    margin-bottom: .25rem;
}

.equalization-tool .result-value {
    font-size: 1.35rem;
    font-weight: 800;
    color: #111827;
}

.equalization-tool .result-unit {
    font-size: .9rem;
    font-weight: 600;
    color: #6c757d;
}

.equalization-tool .small-note {
    font-size: .85rem;
    color: #6c757d;
}

.equalization-tool .tcvn-box {
    background: var(--eq-soft-yellow);
    border: 1px solid #ffe69c;
    border-radius: .75rem;
    padding: 1rem;
}

.equalization-tool .sticky-actions {
    position: sticky;
    bottom: 0;
    z-index: 5;
    border-top: 1px solid var(--eq-border);
}

@media (max-width: 767.98px) {
    .equalization-tool .card-body {
        padding: 1rem !important;
    }

    .equalization-tool .result-value {
        font-size: 1.15rem;
    }
}