.roi-section {
    background: var(--wfs-darker);
}

.roi-calculator {
    background: rgba(229, 199, 56, 0.03);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(229, 199, 56, 0.1);
    margin-bottom: 60px;
}

.roi-calculator h3 {
    color: var(--wfs-white);
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.calculator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.calc-input label {
    display: block;
    color: var(--wfs-light-gray);
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.calc-input input {
    width: 100%;
    padding: 12px;
    background: rgba(26, 26, 26, 0.5);
    border: 1px solid rgba(229, 199, 56, 0.2);
    border-radius: 8px;
    color: var(--wfs-white);
    font-size: 1.1rem;
}

.calc-input input:focus {
    outline: none;
    border-color: var(--wfs-yellow);
}

.roi-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.roi-card {
    text-align: center;
    padding: 30px;
    background: rgba(26, 26, 26, 0.5);
    border-radius: 15px;
    border: 1px solid rgba(229, 199, 56, 0.1);
}

.roi-card.highlight-card {
    background: linear-gradient(135deg, rgba(229, 199, 56, 0.1) 0%, rgba(229, 199, 56, 0.05) 100%);
    border-color: var(--wfs-yellow);
}

.roi-card h4 {
    color: var(--wfs-light-gray);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.roi-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--wfs-yellow);
    margin-bottom: 10px;
}

.roi-card p {
    color: var(--wfs-light-gray);
    font-size: 0.85rem;
}

.cost-breakdown {
    margin: 80px 0;
}

.cost-breakdown h3 {
    text-align: center;
    color: var(--wfs-white);
    font-size: 1.8rem;
    margin-bottom: 40px;
}

.breakdown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.breakdown-item {
    text-align: center;
}

.breakdown-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.breakdown-item h4 {
    color: var(--wfs-white);
    margin-bottom: 20px;
}

.breakdown-item ul {
    list-style: none;
    text-align: left;
    max-width: 250px;
    margin: 0 auto;
}

.breakdown-item li {
    color: var(--wfs-light-gray);
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
}

.breakdown-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--wfs-success);
}

.case-study {
    background: rgba(26, 26, 26, 0.3);
    padding: 60px 40px;
    border-radius: 20px;
    margin: 60px 0;
}

.case-study h3 {
    text-align: center;
    color: var(--wfs-white);
    font-size: 1.8rem;
    margin-bottom: 40px;
}

.case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.case-before, .case-after {
    padding: 30px;
    border-radius: 15px;
}

.case-before {
    background: rgba(255, 51, 102, 0.05);
    border: 1px solid rgba(255, 51, 102, 0.2);
}

.case-after {
    background: rgba(0, 204, 136, 0.05);
    border: 1px solid rgba(0, 204, 136, 0.2);
}

.case-before h4, .case-after h4 {
    color: var(--wfs-white);
    margin-bottom: 20px;
}

.case-list {
    list-style: none;
}

.case-list li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: var(--wfs-light-gray);
}

.case-list.negative li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--wfs-danger);
    font-weight: bold;
}

.case-list.positive li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--wfs-success);
    font-weight: bold;
}

.case-testimonial {
    text-align: center;
}

.case-testimonial blockquote {
    font-size: 1.2rem;
    color: var(--wfs-white);
    font-style: italic;
    max-width: 800px;
    margin: 0 auto;
}

.case-testimonial cite {
    display: block;
    margin-top: 20px;
    color: var(--wfs-yellow);
    font-style: normal;
}

.roi-cta {
    text-align: center;
    margin-top: 60px;
}

.roi-cta h3 {
    color: var(--wfs-white);
    font-size: 2rem;
    margin-bottom: 20px;
}

.roi-cta p {
    color: var(--wfs-light-gray);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.customer-cases {
    margin: 80px 0;
}

.customer-cases h3 {
    text-align: center;
    color: var(--wfs-white);
    font-size: 1.8rem;
    margin-bottom: 40px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background: rgba(26, 26, 26, 0.5);
    border: 1px solid rgba(229, 199, 56, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    border-color: var(--wfs-yellow);
    box-shadow: 0 10px 30px rgba(229, 199, 56, 0.1);
}

.case-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(229, 199, 56, 0.1) 0%, rgba(229, 199, 56, 0.05) 100%);
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.05);
}

.case-content {
    padding: 30px;
}

.case-content h4 {
    color: var(--wfs-yellow);
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.case-industry {
    color: var(--wfs-light-gray);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    opacity: 0.8;
}

.case-content > p {
    color: var(--wfs-light-gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-highlights {
    list-style: none;
    margin-bottom: 25px;
}

.case-highlights li {
    color: var(--wfs-light-gray);
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.case-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--wfs-success);
    font-weight: bold;
}

.case-content blockquote {
    margin: 20px 0 0 0;
    padding: 20px;
    background: rgba(229, 199, 56, 0.03);
    border-left: 3px solid var(--wfs-yellow);
    border-radius: 5px;
    font-style: italic;
    color: var(--wfs-white);
}

.case-content blockquote cite {
    display: block;
    margin-top: 10px;
    color: var(--wfs-yellow);
    font-style: normal;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
}