/* Reusable components */

.roi-section {
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 34%),
        #ffffff;
}

.roi-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 24px;
    align-items: stretch;
}

.roi-panel {
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: 28px;
    background: var(--white);
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
}

.roi-panel h3 {
    margin: 0 0 22px;
    font-size: 24px;
}

.roi-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.roi-field {
    display: grid;
    gap: 8px;
}

.roi-field label {
    color: var(--dark);
    font-weight: 700;
    font-size: 15px;
}

.roi-field input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #f8fafc;
    color: var(--dark);
    font: inherit;
    outline: none;
    transition: 0.2s ease;
}

.roi-field input:focus {
    border-color: rgba(37, 99, 235, 0.55);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
}

.roi-results-panel {
    background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.roi-results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.roi-result-card {
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: #f8fafc;
}

.roi-result-card span,
.roi-summary span {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.roi-result-card strong {
    display: block;
    color: var(--primary-dark);
    font-size: 24px;
    line-height: 1.2;
}

.roi-summary {
    display: grid;
    gap: 14px;
    margin-top: 20px;
}

.roi-summary > div {
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--white);
}

.roi-summary strong {
    color: var(--dark);
    font-size: 24px;
}

.roi-net-saving {
    background: linear-gradient(135deg, #eff6ff, #dbeafe) !important;
    border-color: rgba(37, 99, 235, 0.22) !important;
}

.roi-net-saving strong {
    display: block;
    font-size: clamp(32px, 4vw, 46px);
    line-height: 1;
}

.roi-net-saving strong.is-positive {
    color: #15803d;
}

.roi-net-saving strong.is-negative {
    color: #b91c1c;
}

.roi-note {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 14px;
}

@media (max-width: 900px) {
    .roi-grid,
    .roi-form-grid,
    .roi-results-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .roi-panel {
        padding: 22px;
        border-radius: 24px;
    }

    .roi-result-card strong,
    .roi-summary strong {
        font-size: 22px;
    }
}