a.button-small-primary {
    color:inherit;
    text-decoration:none;
}
.calculator-container {
    padding:20px;
    background: #f9f9f9;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    border-radius:20px;
}
#savings-calculator .form-group {
    margin-bottom: 25px;
}
#savings-calculator label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}
#savings-calculator select {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
    font-size: 16px;
    transition: border-color 0.3s, box-shadow 0.3s;
}
#savings-calculator select:focus {
    outline: none;
    border-color:#2da0c3;
    box-shadow: 0 0 0 3px rgba(45, 160, 195, 0.2);
}
.result-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
/* --- circular progress: crisp SVG ring instead of conic-gradient --- */
.donut-wrap {
    position: relative;
    width: 460px;
    height: 460px;
    margin-bottom: 10px;
}
.donut-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}
.donut-track {
    fill: none;
    stroke: #e9edf1;
    stroke-width: 16;
}
.donut-progress {
    fill: none;
    stroke: #e8756b;
    stroke-width: 16;
    stroke-linecap: round;
    stroke-dasharray: 691.15;
    stroke-dashoffset: 691.15;
    transition: stroke-dashoffset 0.15s linear, stroke 0.4s ease;
}
.donut-center {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
.progress-value {
    font-size: 44px;
    font-weight: 800;
    color: #1d222a;
    line-height: 1;
}
.progress-value-label {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-top: 6px;
}

/* --- tonnes/year stat card --- */
.co2-stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 18px 22px;
    margin-top: 8px;
}
.co2-stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 50%;
    background: #2da0c3;
}
.co2-stat-icon svg {
    width: 22px;
    height: 22px;
    fill: white;
}
.co2-stat-text {
    display: flex;
    flex-direction: column;
}
#real-progress-value {
    filter: blur(7px);
    user-select: none;
}
.co2-stat-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #3a4453;
    margin-top: 2px;
}
.donut-center h2 {
    text-align:center;
}
.info-text {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}
.form-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
}
@media (max-width: 768px) {
    .calculator-container {
        grid-template-columns: 1fr;
    }
    .result-container {
        order: 1;
    }
    .donut-wrap {
        width: 100%;
        max-width: 460px;
        height: auto;
        aspect-ratio: 1 / 1;
    }
}