.futterrechner-wrap {
    max-width: 600px;
    margin: 20px auto;
    padding: 30px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #333;
}

.fr-step {
    display: none;
}

.fr-step.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

.fr-step h3 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 22px;
    text-align: center;
}

.fr-animal-select, .fr-activity-select {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
}

.fr-option {
    flex: 1;
    cursor: pointer;
}

.fr-option input {
    display: none;
}

.fr-card {
    padding: 20px;
    border: 2px solid #eee;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.fr-option.active .fr-card {
    border-color: #007cba;
    background: #f0f8ff;
}

.fr-icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.fr-card span {
    font-weight: bold;
    display: block;
}

.fr-card small {
    color: #666;
    font-weight: normal;
    margin-top: 5px;
}

.fr-input-group {
    margin-bottom: 20px;
    position: relative;
}

.fr-input-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.fr-input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
}

.fr-unit {
    position: absolute;
    right: 15px;
    top: 40px;
    color: #888;
}

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

.fr-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.fr-nav button {
    padding: 10px 25px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}

.fr-next, .fr-submit {
    background: #007cba;
    color: #fff;
    margin-left: auto;
}

.fr-next:hover, .fr-submit:hover {
    background: #006ba1;
}

.fr-prev {
    background: #eee;
    color: #666;
}

.fr-result-box {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.fr-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.fr-result-item:last-child {
    border-bottom: none;
}

.fr-value {
    font-size: 26px;
    font-weight: bold;
    color: #007cba;
    display: inline-block;
}

.fr-restart {
    width: 100%;
    background: #333;
    color: #fff;
}

.fr-error {
    border-color: #d63638 !important;
}

.fr-info {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    text-align: center;
}