:root {
    --jw-green: #4A6741;
    --jw-wood: #A67C52;
    --jw-bg: #F9F7F2;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: transparent;
    margin: 0;
}

.calc-container {
    max-width: 600px;
    margin: 20px auto;
    background: var(--jw-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.hidden {
    display: none;
}

.progress-bar {
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    margin-bottom: 30px;
}

.progress-fill {
    height: 100%;
    background: var(--jw-green);
    width: 25%;
    transition: 0.3s;
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.card-option {
    background: white;
    border: 2px solid #eee;
    padding: 20px;
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
    transition: 0.2s;
}

.card-option:hover {
    border-color: var(--jw-wood);
}

.card-option.active {
    border-color: var(--jw-green);
    background: #f0f4ef;
}

.btn-next {
    background: var(--jw-green);
    color: white;
    border: none;
    padding: 15px;
    width: 100%;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 20px;
}

.btn-next:hover {
    background: var(--jw-wood);
}

.slider {
    width: 100%;
    accent-color: var(--jw-green);
}

.lead-form input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box;
}