/* ROI Calculator Premium UI - Luxury Redesign */
.roi-calculator {
    background: rgba(25, 27, 34, 0.55) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 175, 55, 0.25) !important;
    border-radius: 16px !important;
    padding: 50px 40px !important;
    margin: 60px auto;
    max-width: 850px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), 0 0 30px rgba(212, 175, 55, 0.08) !important;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Ambient glow inside the calculator */
.roi-calculator::after {
    content: '';
    position: absolute;
    bottom: -150px;
    right: -150px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.06) 0%, rgba(25, 27, 34, 0) 70%);
    pointer-events: none;
    z-index: 1;
}

.roi-title {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.roi-desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    margin-bottom: 40px;
    font-family: var(--font-sans);
}

.slider-container {
    margin-bottom: 45px;
    position: relative;
    z-index: 2;
    padding: 0 10px;
}

.roi-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    background: linear-gradient(90deg, rgba(212, 175, 55, 0.2), rgba(255, 255, 255, 0.05));
    border-radius: 4px;
    outline: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.roi-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, #d4af37, #b4942b);
    border: 2px solid #fff;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.8), 0 4px 10px rgba(0,0,0,0.5);
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.2s ease;
}

.roi-slider::-webkit-slider-thumb:hover {
    transform: scale(1.25);
    box-shadow: 0 0 25px rgba(212, 175, 55, 1), 0 6px 12px rgba(0,0,0,0.6);
}

.roi-slider-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    margin-top: 20px;
    display: block;
    font-family: var(--font-sans);
    letter-spacing: -0.5px;
    text-shadow: 0 0 10px rgba(255,255,255,0.1);
}

.roi-results {
    display: flex;
    justify-content: space-around;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 35px;
    flex-wrap: wrap;
    gap: 25px;
    position: relative;
    z-index: 2;
}

.roi-stat {
    flex: 1;
    min-width: 160px;
    padding: 10px;
    transition: transform 0.3s ease;
}

.roi-stat:hover {
    transform: translateY(-4px);
}

.roi-stat-label {
    font-size: 0.85rem;
    color: var(--text-silver);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
    display: block;
    font-family: var(--font-sans);
}

.roi-stat-value {
    font-size: 2.2rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    display: block;
    font-family: var(--font-sans);
}

@media (max-width: 480px) {
    .roi-calculator {
        padding: 30px 20px !important;
        margin: 40px auto;
    }
    .roi-title {
        font-size: 1.8rem !important;
    }
    .roi-desc {
        font-size: 0.95rem !important;
        margin-bottom: 30px !important;
    }
    .roi-stat-value {
        font-size: 1.6rem !important;
    }
    .roi-slider-value {
        font-size: 1.5rem !important;
    }
    .roi-results {
        padding-top: 25px !important;
        gap: 15px !important;
    }
}