/* ROI Calculator Styles */
.roi-section {
    background-color: var(--dark-bg-color);
    color: #fff;
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(20, 20, 40, 0.8) 100%);
}

.roi-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.exchange-rate-note {
    display: inline-flex;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.info-icon {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* Tabs Navigation */
.roi-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.roi-tab {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.roi-tab:hover {
    background: rgba(255, 255, 255, 0.2);
}

.roi-tab.active {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 126, 0, 0.3);
}

/* Content Cards */
.roi-content-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.roi-content {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    animation: fadeIn 0.5s ease-out;
}

.roi-content.active {
    display: grid;
}

.comparison-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header.brasil {
    background: linear-gradient(135deg, #1a5276 0%, #2874a6 100%);
}

.card-header.germany {
    background: linear-gradient(135deg, #ff7e00 0%, #ff9e2c 100%);
}

.card-header h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.card-icon {
    background: rgba(255, 255, 255, 0.2);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-body {
    padding: 1.5rem;
}

.value-highlight {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
}

.note {
    font-size: 1rem;
    opacity: 0.8;
    margin-top: 0.25rem;
}

.card-note {
    font-size: 0.9rem;
    opacity: 0.7;
    font-style: italic;
    margin-top: 1rem;
}

/* Value Highlights */
.value-highlight.positive .value {
    color: #4cd964;
}

.value-highlight.negative .value {
    color: #ff3b30;
}

.value-highlight.neutral .value {
    color: #fff;
}

/* CTA Button */
.roi-cta {
    text-align: center;
    margin-top: 3rem;
}

.btn-large {
    padding: 14px 28px;
    font-size: var(--font-size-md);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: var(--border-radius);
    color: #fff;
    font-weight: 600;
    letter-spacing: 0.2px;
    box-shadow: 0 4px 15px rgba(255, 119, 0, 0.3);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
    text-transform: none;
    text-decoration: none;
}

.btn-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 119, 0, 0.5);
}

.btn-large:active {
    transform: translateY(1px);
    box-shadow: 0 5px 15px rgba(255, 126, 0, 0.4);
}

.btn-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.6s ease;
    z-index: -1;
}

.btn-large:hover::before {
    left: 100%;
}

.btn-icon {
    margin-right: 0.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media (max-width: 768px) {
    .roi-content {
        grid-template-columns: 1fr;
    }
    
    .roi-tab {
        font-size: 0.9rem;
        padding: 0.6rem 1rem;
    }
    
    .value {
        font-size: 1.3rem;
    }
}