#sfs-form {
    max-width: 520px;
    margin: 30px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.sfs-title {
    text-align: center;
    margin-bottom: 25px;
    font-size: 22px;
    font-weight: 600;
}

.sfs-section {
    background: #ffffff;
    padding: 18px;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.sfs-section-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.sfs-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sfs-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.sfs-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

#sfs-form label {
    font-size: 13px;
    font-weight: 500;
    color: #555;
}

#sfs-form input,
#sfs-form select {
    padding: 11px 12px;
    border-radius: 8px;
    border: 1px solid #dcdcdc;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

#sfs-form input:focus,
#sfs-form select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.sfs-feedback {
    color: #b91c1c;
    font-size: 14px;
    margin-bottom: 10px;
}

.sfs-result {
    background: #f8fafc;
    padding: 18px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
}

.sfs-loader {
    text-align: center;
    font-size: 14px;
    color: #555;
}